DevVGA.cpp@ 95601

Last change on this file since 95601 was 95601, checked in by vboxsync, 2 years ago
Devices/Graphics: enabled VGPU10 by default. bugref:9830
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1	/* $Id: DevVGA.cpp 95601 2022-07-12 04:56:46Z vboxsync $ */
2	/** @file
3	* DevVGA - VBox VGA/VESA device.
4	*/
5
6	/*
7	* Copyright (C) 2006-2022 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	* --------------------------------------------------------------------
17	*
18	* This code is based on:
19	*
20	* QEMU VGA Emulator.
21	*
22	* Copyright (c) 2003 Fabrice Bellard
23	*
24	* Permission is hereby granted, free of charge, to any person obtaining a copy
25	* of this software and associated documentation files (the "Software"), to deal
26	* in the Software without restriction, including without limitation the rights
27	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
28	* copies of the Software, and to permit persons to whom the Software is
29	* furnished to do so, subject to the following conditions:
30	*
31	* The above copyright notice and this permission notice shall be included in
32	* all copies or substantial portions of the Software.
33	*
34	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
37	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
38	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
39	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
40	* THE SOFTWARE.
41	*/
42
43
44	/*********************************************************************************************************************************
45	* Defined Constants And Macros *
46	*********************************************************************************************************************************/
47
48	/* WARNING!!! All defines that affect VGAState should be placed in DevVGA.h !!!
49	* NEVER place them here as this would lead to VGASTATE inconsistency
50	* across different .cpp files !!!
51	*/
52
53	#ifdef VBOX_WITH_HGSMI
54	#define PCIDEV_2_VGASTATE(pPciDev) ((PVGASTATE)((uintptr_t)pPciDev - RT_OFFSETOF(VGASTATE, Dev)))
55	#endif /* VBOX_WITH_HGSMI */
56
57	/* VGA text mode blinking constants (cursor and blinking chars). */
58	#define VGA_BLINK_PERIOD_FULL (RT_NS_100MS * 4) /*< Blink cycle length. /
59	#define VGA_BLINK_PERIOD_ON (RT_NS_100MS * 2) /*< How long cursor/text is visible. /
60
61	/* EGA compatible switch values (in high nibble).
62	* XENIX 2.1.x/2.2.x is known to rely on the switch values.
63	*/
64	#define EGA_SWITCHES 0x90 /* Off-on-on-off, high-res color EGA display. */
65
66
67	/*********************************************************************************************************************************
68	* Header Files *
69	*********************************************************************************************************************************/
70	#define LOG_GROUP LOG_GROUP_DEV_VGA
71	#include <VBox/vmm/pdmdev.h>
72	#include <VBox/vmm/pgm.h>
73	#include <VBox/AssertGuest.h>
74	#ifdef IN_RING3
75	# include <iprt/mem.h>
76	# include <iprt/ctype.h>
77	#endif /* IN_RING3 */
78	#include <iprt/assert.h>
79	#include <iprt/asm.h>
80	#include <iprt/file.h>
81	#include <iprt/time.h>
82	#include <iprt/string.h>
83	#include <iprt/uuid.h>
84
85	#include <iprt/formats/bmp.h>
86
87	#include <VBox/VMMDev.h>
88	#include <VBoxVideo.h>
89	#include <VBox/bioslogo.h>
90
91	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
92	#include "DevVGA.h"
93
94	#if defined(IN_RING3) && !defined(VBOX_DEVICE_STRUCT_TESTCASE)
95	# include "DevVGAModes.h"
96	# include <stdio.h> /* sscan */
97	#endif
98
99	#include "VBoxDD.h"
100	#include "VBoxDD2.h"
101
102	#ifdef VBOX_WITH_VMSVGA
103	#include "DevVGA-SVGA.h"
104	#endif
105
106
107	/*********************************************************************************************************************************
108	* Structures and Typedefs *
109	*********************************************************************************************************************************/
110
111	/** The BIOS boot menu text position, X. */
112	#define LOGO_F12TEXT_X 304
113	/** The BIOS boot menu text position, Y. */
114	#define LOGO_F12TEXT_Y 460
115
116	/** Width of the "Press F12 to select boot device." bitmap.
117	Anything that exceeds the limit of F12BootText below is filled with
118	background. */
119	#define LOGO_F12TEXT_WIDTH 286
120	/** Height of the boot device selection bitmap, see LOGO_F12TEXT_WIDTH. */
121	#define LOGO_F12TEXT_HEIGHT 12
122
123	/** The BIOS logo delay time (msec). */
124	#define LOGO_DELAY_TIME 2000
125
126	#define LOGO_MAX_WIDTH 640
127	#define LOGO_MAX_HEIGHT 480
128	#define LOGO_MAX_SIZE LOGO_MAX_WIDTH * LOGO_MAX_HEIGHT * 4
129
130
131	/*********************************************************************************************************************************
132	* Global Variables *
133	*********************************************************************************************************************************/
134	#ifdef IN_RING3
135	/* "Press F12 to select boot device." bitmap. */
136	static const uint8_t g_abLogoF12BootText[] =
137	{
138	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
139	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
140	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07, 0x0F, 0x7C,
141	0xF8, 0xF0, 0x01, 0xE0, 0x81, 0x9F, 0x3F, 0x00, 0x70, 0xF8, 0x00, 0xE0, 0xC3,
142	0x07, 0x0F, 0x1F, 0x3E, 0x70, 0x00, 0xF0, 0xE1, 0xC3, 0x07, 0x0E, 0x00, 0x6E,
143	0x7C, 0x60, 0xE0, 0xE1, 0xC3, 0x07, 0xC6, 0x80, 0x81, 0x31, 0x63, 0xC6, 0x00,
144	0x30, 0x80, 0x61, 0x0C, 0x00, 0x36, 0x63, 0x00, 0x8C, 0x19, 0x83, 0x61, 0xCC,
145	0x18, 0x36, 0x00, 0xCC, 0x8C, 0x19, 0xC3, 0x06, 0xC0, 0x8C, 0x31, 0x3C, 0x30,
146	0x8C, 0x19, 0x83, 0x31, 0x60, 0x60, 0x00, 0x0C, 0x18, 0x00, 0x0C, 0x60, 0x18,
147	0x00, 0x80, 0xC1, 0x18, 0x00, 0x30, 0x06, 0x60, 0x18, 0x30, 0x80, 0x01, 0x00,
148	0x33, 0x63, 0xC6, 0x30, 0x00, 0x30, 0x63, 0x80, 0x19, 0x0C, 0x03, 0x06, 0x00,
149	0x0C, 0x18, 0x18, 0xC0, 0x81, 0x03, 0x00, 0x03, 0x18, 0x0C, 0x00, 0x60, 0x30,
150	0x06, 0x00, 0x87, 0x01, 0x18, 0x06, 0x0C, 0x60, 0x00, 0xC0, 0xCC, 0x98, 0x31,
151	0x0C, 0x00, 0xCC, 0x18, 0x30, 0x0C, 0xC3, 0x80, 0x01, 0x00, 0x03, 0x66, 0xFE,
152	0x18, 0x30, 0x00, 0xC0, 0x02, 0x06, 0x06, 0x00, 0x18, 0x8C, 0x01, 0x60, 0xE0,
153	0x0F, 0x86, 0x3F, 0x03, 0x18, 0x00, 0x30, 0x33, 0x66, 0x0C, 0x03, 0x00, 0x33,
154	0xFE, 0x0C, 0xC3, 0x30, 0xE0, 0x0F, 0xC0, 0x87, 0x9B, 0x31, 0x63, 0xC6, 0x00,
155	0xF0, 0x80, 0x01, 0x03, 0x00, 0x06, 0x63, 0x00, 0x8C, 0x19, 0x83, 0x61, 0xCC,
156	0x18, 0x06, 0x00, 0x6C, 0x8C, 0x19, 0xC3, 0x00, 0x80, 0x8D, 0x31, 0xC3, 0x30,
157	0x8C, 0x19, 0x03, 0x30, 0xB3, 0xC3, 0x87, 0x0F, 0x1F, 0x00, 0x2C, 0x60, 0x80,
158	0x01, 0xE0, 0x87, 0x0F, 0x00, 0x3E, 0x7C, 0x60, 0xF0, 0xE1, 0xE3, 0x07, 0x00,
159	0x0F, 0x3E, 0x7C, 0xFC, 0x00, 0xC0, 0xC3, 0xC7, 0x30, 0x0E, 0x3E, 0x7C, 0x00,
160	0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x1E, 0xC0, 0x00, 0x60, 0x00,
161	0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x60, 0x00, 0xC0, 0x00, 0x00, 0x00,
162	0x0C, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x00, 0x00,
163	0x00, 0x00, 0x00, 0xC0, 0x0C, 0x87, 0x31, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00,
164	0x00, 0x06, 0x00, 0x00, 0x18, 0x00, 0x30, 0x00, 0x00, 0x00, 0x03, 0x00, 0x30,
165	0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0xE0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
166	0xF8, 0x83, 0xC1, 0x07, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x01, 0x00,
167	0x00, 0x04, 0x00, 0x0E, 0x00, 0x00, 0x80, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x30,
168	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
169	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
170	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
171	};
172	#endif /* IN_RING3 */
173
174	#ifndef VBOX_DEVICE_STRUCT_TESTCASE /* Till the end of the file - doesn't count indent wise. */
175
176	#ifdef _MSC_VER
177	# pragma warning(push)
178	# pragma warning(disable:4310 4245) /* Buggy warnings: cast truncates constant value; conversion from 'int' to 'const uint8_t', signed/unsigned mismatch */
179	#endif
180
181	/* force some bits to zero */
182	static const uint8_t sr_mask[8] = {
183	(uint8_t)~0xfc,
184	(uint8_t)~0xc2,
185	(uint8_t)~0xf0,
186	(uint8_t)~0xc0,
187	(uint8_t)~0xf1,
188	(uint8_t)~0xff,
189	(uint8_t)~0xff,
190	(uint8_t)~0x01,
191	};
192
193	static const uint8_t gr_mask[16] = {
194	(uint8_t)~0xf0, /* 0x00 */
195	(uint8_t)~0xf0, /* 0x01 */
196	(uint8_t)~0xf0, /* 0x02 */
197	(uint8_t)~0xe0, /* 0x03 */
198	(uint8_t)~0xfc, /* 0x04 */
199	(uint8_t)~0x84, /* 0x05 */
200	(uint8_t)~0xf0, /* 0x06 */
201	(uint8_t)~0xf0, /* 0x07 */
202	(uint8_t)~0x00, /* 0x08 */
203	(uint8_t)~0xff, /* 0x09 */
204	(uint8_t)~0xff, /* 0x0a */
205	(uint8_t)~0xff, /* 0x0b */
206	(uint8_t)~0xff, /* 0x0c */
207	(uint8_t)~0xff, /* 0x0d */
208	(uint8_t)~0xff, /* 0x0e */
209	(uint8_t)~0xff, /* 0x0f */
210	};
211
212	#ifdef _MSC_VER
213	# pragma warning(pop)
214	#endif
215
216	#define cbswap_32(__x) \
217	((uint32_t)((((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) \| \
218	(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) \| \
219	(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) \| \
220	(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) ))
221
222	#ifdef WORDS_BIGENDIAN
223	# define PAT(x) cbswap_32(x)
224	#else
225	# define PAT(x) (x)
226	#endif
227
228	#ifdef WORDS_BIGENDIAN
229	# define BIG 1
230	#else
231	# define BIG 0
232	#endif
233
234	#ifdef WORDS_BIGENDIAN
235	#define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff)
236	#else
237	#define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff)
238	#endif
239
240	static const uint32_t mask16[16] = {
241	PAT(0x00000000),
242	PAT(0x000000ff),
243	PAT(0x0000ff00),
244	PAT(0x0000ffff),
245	PAT(0x00ff0000),
246	PAT(0x00ff00ff),
247	PAT(0x00ffff00),
248	PAT(0x00ffffff),
249	PAT(0xff000000),
250	PAT(0xff0000ff),
251	PAT(0xff00ff00),
252	PAT(0xff00ffff),
253	PAT(0xffff0000),
254	PAT(0xffff00ff),
255	PAT(0xffffff00),
256	PAT(0xffffffff),
257	};
258
259	#undef PAT
260
261	#ifdef WORDS_BIGENDIAN
262	# define PAT(x) (x)
263	#else
264	# define PAT(x) cbswap_32(x)
265	#endif
266
267	#ifdef IN_RING3
268
269	static const uint32_t dmask16[16] = {
270	PAT(0x00000000),
271	PAT(0x000000ff),
272	PAT(0x0000ff00),
273	PAT(0x0000ffff),
274	PAT(0x00ff0000),
275	PAT(0x00ff00ff),
276	PAT(0x00ffff00),
277	PAT(0x00ffffff),
278	PAT(0xff000000),
279	PAT(0xff0000ff),
280	PAT(0xff00ff00),
281	PAT(0xff00ffff),
282	PAT(0xffff0000),
283	PAT(0xffff00ff),
284	PAT(0xffffff00),
285	PAT(0xffffffff),
286	};
287
288	static const uint32_t dmask4[4] = {
289	PAT(0x00000000),
290	PAT(0x0000ffff),
291	PAT(0xffff0000),
292	PAT(0xffffffff),
293	};
294
295	static uint32_t expand4[256];
296	static uint16_t expand2[256];
297	static uint8_t expand4to8[16];
298
299	#endif /* IN_RING3 */
300
301
302	/**
303	* Mark a page in VGA A0000-AFFFF range as remapped.
304	*
305	* @param pThis VGA instance data.
306	* @param offVGAMem The offset within VGA memory.
307	*/
308	DECLINLINE(void) vgaMarkRemapped(PVGASTATE pThis, RTGCPHYS offVGAMem)
309	{
310	AssertMsg(offVGAMem < _64K, ("offVGAMem = %p > 64K\n", offVGAMem));
311	ASMBitSet(&pThis->bmPageMapBitmap, offVGAMem >> GUEST_PAGE_SHIFT);
312	pThis->fRemappedVGA = true;
313	}
314
315	/**
316	* Checks if a page in VGA A0000-AFFFF range is remapped.
317	*
318	* @returns true if remapped.
319	* @returns false if not remapped (accesses will trap).
320	* @param pThis VGA instance data.
321	* @param offVGAMem The offset within VGA memory.
322	*/
323	DECLINLINE(bool) vgaIsRemapped(PVGASTATE pThis, RTGCPHYS offVGAMem)
324	{
325	AssertMsg(offVGAMem < _64K, ("offVGAMem = %p > 64K\n", offVGAMem));
326	return ASMBitTest(&pThis->bmPageMapBitmap, offVGAMem >> GUEST_PAGE_SHIFT);
327	}
328
329	/**
330	* Reset page remap tracking bits.
331	*
332	* @param pThis VGA instance data.
333	*/
334	DECLINLINE(void) vgaResetRemapped(PVGASTATE pThis)
335	{
336	pThis->fRemappedVGA = false;
337	ASMBitClearRange(&pThis->bmPageMapBitmap, 0, _64K >> GUEST_PAGE_SHIFT);
338	}
339
340	/**
341	* Set a VRAM page dirty.
342	*
343	* @param pThis VGA instance data.
344	* @param offVRAM The VRAM offset of the page to set.
345	*/
346	DECLINLINE(void) vgaR3MarkDirty(PVGASTATE pThis, RTGCPHYS offVRAM)
347	{
348	AssertMsg(offVRAM < pThis->vram_size, ("offVRAM = %p, pThis->vram_size = %p\n", offVRAM, pThis->vram_size));
349	ASMBitSet(&pThis->bmDirtyBitmap[0], offVRAM >> GUEST_PAGE_SHIFT);
350	pThis->fHasDirtyBits = true;
351	}
352
353	#ifdef IN_RING3
354
355	/**
356	* Tests if a VRAM page is dirty.
357	*
358	* @returns true if dirty.
359	* @returns false if clean.
360	* @param pThis VGA instance data.
361	* @param offVRAM The VRAM offset of the page to check.
362	*/
363	DECLINLINE(bool) vgaR3IsDirty(PVGASTATE pThis, RTGCPHYS offVRAM)
364	{
365	AssertMsg(offVRAM < pThis->vram_size, ("offVRAM = %p, pThis->vram_size = %p\n", offVRAM, pThis->vram_size));
366	return ASMBitTest(&pThis->bmDirtyBitmap[0], offVRAM >> GUEST_PAGE_SHIFT);
367	}
368
369
370	/**
371	* Reset dirty flags in a give range.
372	*
373	* @param pThis VGA instance data.
374	* @param offVRAMStart Offset into the VRAM buffer of the first page.
375	* @param offVRAMEnd Offset into the VRAM buffer of the last page - exclusive.
376	*/
377	DECLINLINE(void) vgaR3ResetDirty(PVGASTATE pThis, RTGCPHYS offVRAMStart, RTGCPHYS offVRAMEnd)
378	{
379	Assert(offVRAMStart < pThis->vram_size);
380	Assert(offVRAMEnd <= pThis->vram_size);
381	Assert(offVRAMStart < offVRAMEnd);
382	ASMBitClearRange(&pThis->bmDirtyBitmap[0], offVRAMStart >> GUEST_PAGE_SHIFT, offVRAMEnd >> GUEST_PAGE_SHIFT);
383	}
384
385
386	/**
387	* Queries the VRAM dirty bits and resets the monitoring.
388	*/
389	static void vgaR3UpdateDirtyBitsAndResetMonitoring(PPDMDEVINS pDevIns, PVGASTATE pThis)
390	{
391	size_t const cbBitmap = RT_ALIGN_Z(RT_MIN(pThis->vram_size, VGA_VRAM_MAX), GUEST_PAGE_SIZE * 64) / GUEST_PAGE_SIZE / 8;
392
393	/*
394	* If we don't have any dirty bits from MMIO accesses, we can just query
395	* straight into the dirty buffer.
396	*/
397	if (!pThis->fHasDirtyBits)
398	{
399	int rc = PDMDevHlpMmio2QueryAndResetDirtyBitmap(pDevIns, pThis->hMmio2VRam, pThis->bmDirtyBitmap, cbBitmap);
400	AssertRC(rc);
401	}
402	/*
403	* Otherwise we'll have to query and merge the two.
404	*/
405	else
406	{
407	uint64_t bmDirtyPages[VGA_VRAM_MAX / GUEST_PAGE_SIZE / 64]; /* (256 MB VRAM -> 8KB bitmap) */
408	int rc = PDMDevHlpMmio2QueryAndResetDirtyBitmap(pDevIns, pThis->hMmio2VRam, bmDirtyPages, cbBitmap);
409	if (RT_SUCCESS(rc))
410	{
411	/** @todo could use ORPS or VORPS here, I think. */
412	uint64_t *pbmDst = pThis->bmDirtyBitmap;
413	size_t const cTodo = cbBitmap / sizeof(uint64_t);
414
415	/* Do 64 bytes at a time first. */
416	size_t const cTodoFirst = cTodo & ~(size_t)7;
417	size_t idx;
418	for (idx = 0; idx < cTodoFirst; idx += 8)
419	{
420	pbmDst[idx + 0] \|= bmDirtyPages[idx + 0];
421	pbmDst[idx + 1] \|= bmDirtyPages[idx + 1];
422	pbmDst[idx + 2] \|= bmDirtyPages[idx + 2];
423	pbmDst[idx + 3] \|= bmDirtyPages[idx + 3];
424	pbmDst[idx + 4] \|= bmDirtyPages[idx + 4];
425	pbmDst[idx + 5] \|= bmDirtyPages[idx + 5];
426	pbmDst[idx + 6] \|= bmDirtyPages[idx + 6];
427	pbmDst[idx + 7] \|= bmDirtyPages[idx + 7];
428	}
429
430	/* Then do a mopup of anything remaining. */
431	switch (cTodo - idx)
432	{
433	case 7: pbmDst[idx + 6] \|= bmDirtyPages[idx + 6]; RT_FALL_THRU();
434	case 6: pbmDst[idx + 5] \|= bmDirtyPages[idx + 5]; RT_FALL_THRU();
435	case 5: pbmDst[idx + 4] \|= bmDirtyPages[idx + 4]; RT_FALL_THRU();
436	case 4: pbmDst[idx + 3] \|= bmDirtyPages[idx + 3]; RT_FALL_THRU();
437	case 3: pbmDst[idx + 2] \|= bmDirtyPages[idx + 2]; RT_FALL_THRU();
438	case 2: pbmDst[idx + 1] \|= bmDirtyPages[idx + 1]; RT_FALL_THRU();
439	case 1: pbmDst[idx] \|= bmDirtyPages[idx]; break;
440	case 0: break;
441	default: AssertFailedBreak();
442	}
443
444	pThis->fHasDirtyBits = false;
445	}
446	}
447	}
448
449	#endif /* IN_RING3 */
450
451	/* Update the values needed for calculating Vertical Retrace and
452	* Display Enable status bits more or less accurately. The Display Enable
453	* bit is set (indicating disabled display signal) when either the
454	* horizontal (hblank) or vertical (vblank) blanking is active. The
455	* Vertical Retrace bit is set when vertical retrace (vsync) is active.
456	* Unless the CRTC is horribly misprogrammed, vsync implies vblank.
457	*/
458	static void vga_update_retrace_state(PVGASTATE pThis)
459	{
460	unsigned htotal_cclks, vtotal_lines, chars_per_sec;
461	unsigned hblank_start_cclk, hblank_end_cclk, hblank_width, hblank_skew_cclks;
462	unsigned vsync_start_line, vsync_end, vsync_width;
463	unsigned vblank_start_line, vblank_end, vblank_width;
464	unsigned char_dots, clock_doubled, clock_index;
465	const int clocks[] = {25175000, 28322000, 25175000, 25175000};
466	vga_retrace_s *r = &pThis->retrace_state;
467
468	/* For horizontal timings, we only care about the blanking start/end. */
469	htotal_cclks = pThis->cr[0x00] + 5;
470	hblank_start_cclk = pThis->cr[0x02];
471	hblank_end_cclk = (pThis->cr[0x03] & 0x1f) + ((pThis->cr[0x05] & 0x80) >> 2);
472	hblank_skew_cclks = (pThis->cr[0x03] >> 5) & 3;
473
474	/* For vertical timings, we need both the blanking start/end... */
475	vtotal_lines = pThis->cr[0x06] + ((pThis->cr[0x07] & 1) << 8) + ((pThis->cr[0x07] & 0x20) << 4) + 2;
476	vblank_start_line = pThis->cr[0x15] + ((pThis->cr[0x07] & 8) << 5) + ((pThis->cr[0x09] & 0x20) << 4);
477	vblank_end = pThis->cr[0x16];
478	/* ... and the vertical retrace (vsync) start/end. */
479	vsync_start_line = pThis->cr[0x10] + ((pThis->cr[0x07] & 4) << 6) + ((pThis->cr[0x07] & 0x80) << 2);
480	vsync_end = pThis->cr[0x11] & 0xf;
481
482	/* Calculate the blanking and sync widths. The way it's implemented in
483	* the VGA with limited-width compare counters is quite a piece of work.
484	*/
485	hblank_width = (hblank_end_cclk - hblank_start_cclk) & 0x3f;/* 6 bits */
486	vblank_width = (vblank_end - vblank_start_line) & 0xff; /* 8 bits */
487	vsync_width = (vsync_end - vsync_start_line) & 0xf; /* 4 bits */
488
489	/* Calculate the dot and character clock rates. */
490	clock_doubled = (pThis->sr[0x01] >> 3) & 1; /* Clock doubling bit. */
491	clock_index = (pThis->msr >> 2) & 3;
492	char_dots = (pThis->sr[0x01] & 1) ? 8 : 9; /* 8 or 9 dots per cclk. */
493
494	chars_per_sec = clocks[clock_index] / char_dots;
495	Assert(chars_per_sec); /* Can't possibly be zero. */
496
497	htotal_cclks <<= clock_doubled;
498
499	/* Calculate the number of cclks per entire frame. */
500	r->frame_cclks = vtotal_lines * htotal_cclks;
501	Assert(r->frame_cclks); /* Can't possibly be zero. */
502
503	if (r->v_freq_hz) { /* Could be set to emulate a specific rate. */
504	r->cclk_ns = 1000000000 / (r->frame_cclks * r->v_freq_hz);
505	} else {
506	r->cclk_ns = 1000000000 / chars_per_sec;
507	}
508	Assert(r->cclk_ns);
509	r->frame_ns = r->frame_cclks * r->cclk_ns;
510
511	/* Calculate timings in cclks/lines. Stored but not directly used. */
512	r->hb_start = hblank_start_cclk + hblank_skew_cclks;
513	r->hb_end = hblank_start_cclk + hblank_width + hblank_skew_cclks;
514	r->h_total = htotal_cclks;
515	Assert(r->h_total); /* Can't possibly be zero. */
516
517	r->vb_start = vblank_start_line;
518	r->vb_end = vblank_start_line + vblank_width + 1;
519	r->vs_start = vsync_start_line;
520	r->vs_end = vsync_start_line + vsync_width + 1;
521
522	/* Calculate timings in nanoseconds. For easier comparisons, the frame
523	* is considered to start at the beginning of the vertical and horizontal
524	* blanking period.
525	*/
526	r->h_total_ns = htotal_cclks * r->cclk_ns;
527	r->hb_end_ns = hblank_width * r->cclk_ns;
528	r->vb_end_ns = vblank_width * r->h_total_ns;
529	r->vs_start_ns = (r->vs_start - r->vb_start) * r->h_total_ns;
530	r->vs_end_ns = (r->vs_end - r->vb_start) * r->h_total_ns;
531	Assert(r->h_total_ns); /* See h_total. */
532	}
533
534	static uint8_t vga_retrace(PPDMDEVINS pDevIns, PVGASTATE pThis)
535	{
536	vga_retrace_s *r = &pThis->retrace_state;
537
538	if (r->frame_ns) {
539	uint8_t val = pThis->st01 & ~(ST01_V_RETRACE \| ST01_DISP_ENABLE);
540	unsigned cur_frame_ns, cur_line_ns;
541	uint64_t time_ns;
542
543	time_ns = PDMDevHlpTMTimeVirtGetNano(pDevIns);
544
545	/* Determine the time within the frame. */
546	cur_frame_ns = time_ns % r->frame_ns;
547
548	/* See if we're in the vertical blanking period... */
549	if (cur_frame_ns < r->vb_end_ns) {
550	val \|= ST01_DISP_ENABLE;
551	/* ... and additionally in the vertical sync period. */
552	if (cur_frame_ns >= r->vs_start_ns && cur_frame_ns <= r->vs_end_ns)
553	val \|= ST01_V_RETRACE;
554	} else {
555	/* Determine the time within the current scanline. */
556	cur_line_ns = cur_frame_ns % r->h_total_ns;
557	/* See if we're in the horizontal blanking period. */
558	if (cur_line_ns < r->hb_end_ns)
559	val \|= ST01_DISP_ENABLE;
560	}
561	return val;
562	} else {
563	return pThis->st01 ^ (ST01_V_RETRACE \| ST01_DISP_ENABLE);
564	}
565	}
566
567	int vga_ioport_invalid(PVGASTATE pThis, uint32_t addr)
568	{
569	if (pThis->msr & MSR_COLOR_EMULATION) {
570	/* Color */
571	return (addr >= 0x3b0 && addr <= 0x3bf);
572	} else {
573	/* Monochrome */
574	return (addr >= 0x3d0 && addr <= 0x3df);
575	}
576	}
577
578	static uint32_t vga_ioport_read(PPDMDEVINS pDevIns, PVGASTATE pThis, uint32_t addr)
579	{
580	int val, index;
581
582	/* check port range access depending on color/monochrome mode */
583	if (vga_ioport_invalid(pThis, addr)) {
584	val = 0xff;
585	Log(("VGA: following read ignored\n"));
586	} else {
587	switch(addr) {
588	case 0x3c0:
589	if (pThis->ar_flip_flop == 0) {
590	val = pThis->ar_index;
591	} else {
592	val = 0;
593	}
594	break;
595	case 0x3c1:
596	index = pThis->ar_index & 0x1f;
597	if (index < 21)
598	val = pThis->ar[index];
599	else
600	val = 0;
601	break;
602	case 0x3c2:
603	val = pThis->st00;
604	break;
605	case 0x3c4:
606	val = pThis->sr_index;
607	break;
608	case 0x3c5:
609	val = pThis->sr[pThis->sr_index];
610	Log2(("vga: read SR%x = 0x%02x\n", pThis->sr_index, val));
611	break;
612	case 0x3c7:
613	val = pThis->dac_state;
614	break;
615	case 0x3c8:
616	val = pThis->dac_write_index;
617	break;
618	case 0x3c9:
619	Assert(pThis->dac_sub_index < 3);
620	val = pThis->palette[pThis->dac_read_index * 3 + pThis->dac_sub_index];
621	if (++pThis->dac_sub_index == 3) {
622	pThis->dac_sub_index = 0;
623	pThis->dac_read_index++;
624	}
625	break;
626	case 0x3ca:
627	val = pThis->fcr;
628	break;
629	case 0x3cc:
630	val = pThis->msr;
631	break;
632	case 0x3ce:
633	val = pThis->gr_index;
634	break;
635	case 0x3cf:
636	val = pThis->gr[pThis->gr_index];
637	Log2(("vga: read GR%x = 0x%02x\n", pThis->gr_index, val));
638	break;
639	case 0x3b4:
640	case 0x3d4:
641	val = pThis->cr_index;
642	break;
643	case 0x3b5:
644	case 0x3d5:
645	val = pThis->cr[pThis->cr_index];
646	Log2(("vga: read CR%x = 0x%02x\n", pThis->cr_index, val));
647	break;
648	case 0x3ba:
649	case 0x3da:
650	val = pThis->st01 = vga_retrace(pDevIns, pThis);
651	pThis->ar_flip_flop = 0;
652	break;
653	default:
654	val = 0x00;
655	break;
656	}
657	}
658	Log(("VGA: read addr=0x%04x data=0x%02x\n", addr, val));
659	return val;
660	}
661
662	static void vga_ioport_write(PPDMDEVINS pDevIns, PVGASTATE pThis, uint32_t addr, uint32_t val)
663	{
664	int index;
665
666	Log(("VGA: write addr=0x%04x data=0x%02x\n", addr, val));
667
668	/* check port range access depending on color/monochrome mode */
669	if (vga_ioport_invalid(pThis, addr)) {
670	Log(("VGA: previous write ignored\n"));
671	return;
672	}
673
674	switch(addr) {
675	case 0x3c0:
676	case 0x3c1:
677	if (pThis->ar_flip_flop == 0) {
678	val &= 0x3f;
679	pThis->ar_index = val;
680	} else {
681	index = pThis->ar_index & 0x1f;
682	switch(index) {
683	case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07:
684	case 0x08: case 0x09: case 0x0a: case 0x0b: case 0x0c: case 0x0d: case 0x0e: case 0x0f:
685	pThis->ar[index] = val & 0x3f;
686	break;
687	case 0x10:
688	pThis->ar[index] = val & ~0x10;
689	break;
690	case 0x11:
691	pThis->ar[index] = val;
692	break;
693	case 0x12:
694	pThis->ar[index] = val & ~0xc0;
695	break;
696	case 0x13:
697	pThis->ar[index] = val & ~0xf0;
698	break;
699	case 0x14:
700	pThis->ar[index] = val & ~0xf0;
701	break;
702	default:
703	break;
704	}
705	}
706	pThis->ar_flip_flop ^= 1;
707	break;
708	case 0x3c2:
709	pThis->msr = val & ~0x10;
710	if (pThis->fRealRetrace)
711	vga_update_retrace_state(pThis);
712	/* The two clock select bits also determine which of the four switches
713	* is reflected in bit 4 of Input Status Register 0.
714	* This is EGA compatible behavior. See the IBM EGA Tech Ref.
715	*/
716	pThis->st00 = (pThis->st00 & ~0x10) \| ((EGA_SWITCHES >> ((val >> 2) & 0x3) & 0x10));
717	break;
718	case 0x3c4:
719	pThis->sr_index = val & 7;
720	break;
721	case 0x3c5:
722	Log2(("vga: write SR%x = 0x%02x\n", pThis->sr_index, val));
723	pThis->sr[pThis->sr_index] = val & sr_mask[pThis->sr_index];
724	/* Allow SR07 to disable VBE. */
725	if (pThis->sr_index == 0x07 && !(val & 1))
726	{
727	pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] = VBE_DISPI_DISABLED;
728	pThis->bank_offset = 0;
729	}
730	if (pThis->fRealRetrace && pThis->sr_index == 0x01)
731	vga_update_retrace_state(pThis);
732	#ifndef IN_RC
733	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
734	if ( pThis->sr_index == 4 /* mode */
735	\|\| pThis->sr_index == 2 /* plane mask */)
736	{
737	if (pThis->fRemappedVGA)
738	{
739	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
740	STAM_COUNTER_INC(&pThis->StatMapReset);
741	vgaResetRemapped(pThis);
742	}
743	}
744	#endif
745	break;
746	case 0x3c7:
747	pThis->dac_read_index = val;
748	pThis->dac_sub_index = 0;
749	pThis->dac_state = 3;
750	break;
751	case 0x3c8:
752	pThis->dac_write_index = val;
753	pThis->dac_sub_index = 0;
754	pThis->dac_state = 0;
755	break;
756	case 0x3c9:
757	Assert(pThis->dac_sub_index < 3);
758	pThis->dac_cache[pThis->dac_sub_index] = val;
759	if (++pThis->dac_sub_index == 3) {
760	memcpy(&pThis->palette[pThis->dac_write_index * 3], pThis->dac_cache, 3);
761	pThis->dac_sub_index = 0;
762	pThis->dac_write_index++;
763	}
764	break;
765	case 0x3ce:
766	pThis->gr_index = val & 0x0f;
767	break;
768	case 0x3cf:
769	Log2(("vga: write GR%x = 0x%02x\n", pThis->gr_index, val));
770	Assert(pThis->gr_index < RT_ELEMENTS(gr_mask));
771	pThis->gr[pThis->gr_index] = val & gr_mask[pThis->gr_index];
772
773	#ifndef IN_RC
774	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
775	if (pThis->gr_index == 6 /* memory map mode */)
776	{
777	if (pThis->fRemappedVGA)
778	{
779	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
780	STAM_COUNTER_INC(&pThis->StatMapReset);
781	vgaResetRemapped(pThis);
782	}
783	}
784	#endif
785	break;
786
787	case 0x3b4:
788	case 0x3d4:
789	pThis->cr_index = val;
790	break;
791	case 0x3b5:
792	case 0x3d5:
793	Log2(("vga: write CR%x = 0x%02x\n", pThis->cr_index, val));
794	/* handle CR0-7 protection */
795	if ((pThis->cr[0x11] & 0x80) && pThis->cr_index <= 7) {
796	/* can always write bit 4 of CR7 */
797	if (pThis->cr_index == 7)
798	pThis->cr[7] = (pThis->cr[7] & ~0x10) \| (val & 0x10);
799	return;
800	}
801	pThis->cr[pThis->cr_index] = val;
802
803	if (pThis->fRealRetrace) {
804	/* The following registers are only updated during a mode set. */
805	switch(pThis->cr_index) {
806	case 0x00:
807	case 0x02:
808	case 0x03:
809	case 0x05:
810	case 0x06:
811	case 0x07:
812	case 0x09:
813	case 0x10:
814	case 0x11:
815	case 0x15:
816	case 0x16:
817	vga_update_retrace_state(pThis);
818	break;
819	}
820	}
821	break;
822	case 0x3ba:
823	case 0x3da:
824	pThis->fcr = val & 0x10;
825	break;
826	}
827	}
828
829	#ifdef CONFIG_BOCHS_VBE
830
831	static uint32_t vbe_read_cfg(PVGASTATE pThis)
832	{
833	const uint16_t u16Cfg = pThis->vbe_regs[VBE_DISPI_INDEX_CFG];
834	const uint16_t u16Id = u16Cfg & VBE_DISPI_CFG_MASK_ID;
835	const bool fQuerySupport = RT_BOOL(u16Cfg & VBE_DISPI_CFG_MASK_SUPPORT);
836
837	uint32_t val = 0;
838	switch (u16Id)
839	{
840	case VBE_DISPI_CFG_ID_VERSION: val = 1; break;
841	case VBE_DISPI_CFG_ID_VRAM_SIZE: val = pThis->vram_size; break;
842	case VBE_DISPI_CFG_ID_3D: val = pThis->f3DEnabled; break;
843	# ifdef VBOX_WITH_VMSVGA
844	case VBE_DISPI_CFG_ID_VMSVGA: val = pThis->fVMSVGAEnabled; break;
845	case VBE_DISPI_CFG_ID_VMSVGA_DX: val = pThis->fVMSVGA10; break;
846	# endif
847	default:
848	return 0; /* Not supported. */
849	}
850
851	return fQuerySupport ? 1 : val;
852	}
853
854	static uint32_t vbe_ioport_read_index(PVGASTATE pThis, uint32_t addr)
855	{
856	uint32_t val = pThis->vbe_index;
857	NOREF(addr);
858	return val;
859	}
860
861	static uint32_t vbe_ioport_read_data(PVGASTATE pThis, uint32_t addr)
862	{
863	uint32_t val;
864	NOREF(addr);
865
866	uint16_t const idxVbe = pThis->vbe_index;
867	if (idxVbe < VBE_DISPI_INDEX_NB)
868	{
869	RT_UNTRUSTED_VALIDATED_FENCE();
870	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_GETCAPS)
871	{
872	switch (idxVbe)
873	{
874	/* XXX: do not hardcode ? */
875	case VBE_DISPI_INDEX_XRES:
876	val = VBE_DISPI_MAX_XRES;
877	break;
878	case VBE_DISPI_INDEX_YRES:
879	val = VBE_DISPI_MAX_YRES;
880	break;
881	case VBE_DISPI_INDEX_BPP:
882	val = VBE_DISPI_MAX_BPP;
883	break;
884	default:
885	Assert(idxVbe < VBE_DISPI_INDEX_NB);
886	val = pThis->vbe_regs[idxVbe];
887	break;
888	}
889	}
890	else
891	{
892	switch (idxVbe)
893	{
894	case VBE_DISPI_INDEX_VBOX_VIDEO:
895	/* Reading from the port means that the old additions are requesting the number of monitors. */
896	val = 1;
897	break;
898	case VBE_DISPI_INDEX_CFG:
899	val = vbe_read_cfg(pThis);
900	break;
901	default:
902	Assert(idxVbe < VBE_DISPI_INDEX_NB);
903	val = pThis->vbe_regs[idxVbe];
904	break;
905	}
906	}
907	}
908	else
909	val = 0;
910	Log(("VBE: read index=0x%x val=0x%x\n", idxVbe, val));
911	return val;
912	}
913
914	# define VBE_PITCH_ALIGN 4 /* Align pitch to 32 bits - Qt requires that. */
915
916	/* Calculate scanline pitch based on bit depth and width in pixels. */
917	static uint32_t calc_line_pitch(uint16_t bpp, uint16_t width)
918	{
919	uint32_t pitch, aligned_pitch;
920
921	if (bpp <= 4)
922	pitch = width >> 1;
923	else
924	pitch = width * ((bpp + 7) >> 3);
925
926	/* Align the pitch to some sensible value. */
927	aligned_pitch = (pitch + (VBE_PITCH_ALIGN - 1)) & ~(VBE_PITCH_ALIGN - 1);
928	if (aligned_pitch != pitch)
929	Log(("VBE: Line pitch %d aligned to %d bytes\n", pitch, aligned_pitch));
930
931	return aligned_pitch;
932	}
933
934	static void recalculate_data(PVGASTATE pThis)
935	{
936	uint16_t cBPP = pThis->vbe_regs[VBE_DISPI_INDEX_BPP];
937	uint16_t cVirtWidth = pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH];
938	uint16_t cX = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
939	if (!cBPP \|\| !cX)
940	return; /* Not enough data has been set yet. */
941	uint32_t cbLinePitch = calc_line_pitch(cBPP, cVirtWidth);
942	if (!cbLinePitch)
943	cbLinePitch = calc_line_pitch(cBPP, cX);
944	if (!cbLinePitch)
945	return;
946	uint32_t cVirtHeight = pThis->vram_size / cbLinePitch;
947	uint16_t offX = pThis->vbe_regs[VBE_DISPI_INDEX_X_OFFSET];
948	uint16_t offY = pThis->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET];
949	uint32_t offStart = cbLinePitch * offY;
950	if (cBPP == 4)
951	offStart += offX >> 1;
952	else
953	offStart += offX * ((cBPP + 7) >> 3);
954	offStart >>= 2;
955	pThis->vbe_line_offset = RT_MIN(cbLinePitch, pThis->vram_size);
956	pThis->vbe_start_addr = RT_MIN(offStart, pThis->vram_size);
957
958	/* The VBE_DISPI_INDEX_VIRT_HEIGHT is used to prevent setting resolution bigger than
959	* the VRAM size permits. It is used instead of VBE_DISPI_INDEX_YRES only in case
960	* pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] < pThis->vbe_regs[VBE_DISPI_INDEX_YRES].
961	* Note that VBE_DISPI_INDEX_VIRT_HEIGHT has to be clipped to UINT16_MAX, which happens
962	* with small resolutions and big VRAM. */
963	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = cVirtHeight >= UINT16_MAX ? UINT16_MAX : (uint16_t)cVirtHeight;
964	}
965
966	static void vbe_ioport_write_index(PVGASTATE pThis, uint32_t addr, uint32_t val)
967	{
968	pThis->vbe_index = val;
969	NOREF(addr);
970	}
971
972	static VBOXSTRICTRC vbe_ioport_write_data(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC, uint32_t addr, uint32_t val)
973	{
974	uint32_t max_bank;
975	RT_NOREF(pThisCC, addr);
976
977	if (pThis->vbe_index <= VBE_DISPI_INDEX_NB) {
978	bool fRecalculate = false;
979	Log(("VBE: write index=0x%x val=0x%x\n", pThis->vbe_index, val));
980	switch(pThis->vbe_index) {
981	case VBE_DISPI_INDEX_ID:
982	if (val == VBE_DISPI_ID0 \|\|
983	val == VBE_DISPI_ID1 \|\|
984	val == VBE_DISPI_ID2 \|\|
985	val == VBE_DISPI_ID3 \|\|
986	val == VBE_DISPI_ID4 \|\|
987	/* VBox extensions. */
988	val == VBE_DISPI_ID_VBOX_VIDEO \|\|
989	val == VBE_DISPI_ID_ANYX \|\|
990	# ifdef VBOX_WITH_HGSMI
991	val == VBE_DISPI_ID_HGSMI \|\|
992	# endif
993	val == VBE_DISPI_ID_CFG)
994	{
995	pThis->vbe_regs[pThis->vbe_index] = val;
996	}
997	break;
998	case VBE_DISPI_INDEX_XRES:
999	if (val <= VBE_DISPI_MAX_XRES)
1000	{
1001	pThis->vbe_regs[pThis->vbe_index] = val;
1002	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = val;
1003	fRecalculate = true;
1004	}
1005	break;
1006	case VBE_DISPI_INDEX_YRES:
1007	if (val <= VBE_DISPI_MAX_YRES)
1008	pThis->vbe_regs[pThis->vbe_index] = val;
1009	break;
1010	case VBE_DISPI_INDEX_BPP:
1011	if (val == 0)
1012	val = 8;
1013	if (val == 4 \|\| val == 8 \|\| val == 15 \|\|
1014	val == 16 \|\| val == 24 \|\| val == 32) {
1015	pThis->vbe_regs[pThis->vbe_index] = val;
1016	fRecalculate = true;
1017	}
1018	break;
1019	case VBE_DISPI_INDEX_BANK:
1020	if (pThis->vbe_regs[VBE_DISPI_INDEX_BPP] <= 4)
1021	max_bank = pThis->vbe_bank_max >> 2; /* Each bank really covers 256K */
1022	else
1023	max_bank = pThis->vbe_bank_max;
1024	/* Old software may pass garbage in the high byte of bank. If the maximum
1025	* bank fits into a single byte, toss the high byte the user supplied.
1026	*/
1027	if (max_bank < 0x100)
1028	val &= 0xff;
1029	if (val > max_bank)
1030	val = max_bank;
1031	pThis->vbe_regs[pThis->vbe_index] = val;
1032	pThis->bank_offset = (val << 16);
1033
1034	# ifndef IN_RC
1035	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
1036	if (pThis->fRemappedVGA)
1037	{
1038	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
1039	STAM_COUNTER_INC(&pThis->StatMapReset);
1040	vgaResetRemapped(pThis);
1041	}
1042	# endif
1043	break;
1044
1045	case VBE_DISPI_INDEX_ENABLE:
1046	# ifndef IN_RING3
1047	return VINF_IOM_R3_IOPORT_WRITE;
1048	# else
1049	{
1050	if ((val & VBE_DISPI_ENABLED) &&
1051	!(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED)) {
1052	int h, shift_control;
1053	/* Check the values before we screw up with a resolution which is too big or small. */
1054	size_t cb = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
1055	if (pThis->vbe_regs[VBE_DISPI_INDEX_BPP] == 4)
1056	cb = pThis->vbe_regs[VBE_DISPI_INDEX_XRES] >> 1;
1057	else
1058	cb = pThis->vbe_regs[VBE_DISPI_INDEX_XRES] * ((pThis->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3);
1059	cb *= pThis->vbe_regs[VBE_DISPI_INDEX_YRES];
1060	uint16_t cVirtWidth = pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH];
1061	if (!cVirtWidth)
1062	cVirtWidth = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
1063	if ( !cVirtWidth
1064	\|\| !pThis->vbe_regs[VBE_DISPI_INDEX_YRES]
1065	\|\| cb > pThis->vram_size)
1066	{
1067	AssertMsgFailed(("VIRT WIDTH=%d YRES=%d cb=%d vram_size=%d\n",
1068	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH], pThis->vbe_regs[VBE_DISPI_INDEX_YRES], cb, pThis->vram_size));
1069	return VINF_SUCCESS; /* Note: silent failure like before */
1070	}
1071
1072	/* When VBE interface is enabled, it is reset. */
1073	pThis->vbe_regs[VBE_DISPI_INDEX_X_OFFSET] = 0;
1074	pThis->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET] = 0;
1075	fRecalculate = true;
1076
1077	/* clear the screen (should be done in BIOS) */
1078	if (!(val & VBE_DISPI_NOCLEARMEM)) {
1079	uint16_t cY = RT_MIN(pThis->vbe_regs[VBE_DISPI_INDEX_YRES],
1080	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT]);
1081	uint16_t cbLinePitch = pThis->vbe_line_offset;
1082	memset(pThisCC->pbVRam, 0,
1083	cY * cbLinePitch);
1084	}
1085
1086	/* we initialize the VGA graphic mode (should be done
1087	in BIOS) */
1088	pThis->gr[0x06] = (pThis->gr[0x06] & ~0x0c) \| 0x05; /* graphic mode + memory map 1 */
1089	pThis->cr[0x17] \|= 3; /* no CGA modes */
1090	pThis->cr[0x13] = pThis->vbe_line_offset >> 3;
1091	/* width */
1092	pThis->cr[0x01] = (cVirtWidth >> 3) - 1;
1093	/* height (only meaningful if < 1024) */
1094	h = pThis->vbe_regs[VBE_DISPI_INDEX_YRES] - 1;
1095	pThis->cr[0x12] = h;
1096	pThis->cr[0x07] = (pThis->cr[0x07] & ~0x42) \|
1097	((h >> 7) & 0x02) \| ((h >> 3) & 0x40);
1098	/* line compare to 1023 */
1099	pThis->cr[0x18] = 0xff;
1100	pThis->cr[0x07] \|= 0x10;
1101	pThis->cr[0x09] \|= 0x40;
1102
1103	if (pThis->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) {
1104	shift_control = 0;
1105	pThis->sr[0x01] &= ~8; /* no double line */
1106	} else {
1107	shift_control = 2;
1108	pThis->sr[4] \|= 0x08; /* set chain 4 mode */
1109	pThis->sr[2] \|= 0x0f; /* activate all planes */
1110	/* Indicate non-VGA mode in SR07. */
1111	pThis->sr[7] \|= 1;
1112	}
1113	pThis->gr[0x05] = (pThis->gr[0x05] & ~0x60) \| (shift_control << 5);
1114	pThis->cr[0x09] &= ~0x9f; /* no double scan */
1115	/* sunlover 30.05.2007
1116	* The ar_index remains with bit 0x20 cleared after a switch from fullscreen
1117	* DOS mode on Windows XP guest. That leads to GMODE_BLANK in vgaR3UpdateDisplay.
1118	* But the VBE mode is graphics, so not a blank anymore.
1119	*/
1120	pThis->ar_index \|= 0x20;
1121	} else {
1122	/* XXX: the bios should do that */
1123	/* sunlover 21.12.2006
1124	* Here is probably more to reset. When this was executed in GC
1125	* then the update functions could not detect a mode change.
1126	* Or may be these update function should take the pThis->vbe_regs[pThis->vbe_index]
1127	* into account when detecting a mode change.
1128	*
1129	* The 'mode reset not detected' problem is now fixed by executing the
1130	* VBE_DISPI_INDEX_ENABLE case always in RING3 in order to call the
1131	* LFBChange callback.
1132	*/
1133	pThis->bank_offset = 0;
1134	}
1135	pThis->vbe_regs[pThis->vbe_index] = val;
1136	/*
1137	* LFB video mode is either disabled or changed. Notify the display
1138	* and reset VBVA.
1139	*/
1140	pThisCC->pDrv->pfnLFBModeChange(pThisCC->pDrv, (val & VBE_DISPI_ENABLED) != 0);
1141	# ifdef VBOX_WITH_HGSMI
1142	VBVAOnVBEChanged(pThis, pThisCC);
1143	# endif
1144
1145	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
1146	if (pThis->fRemappedVGA)
1147	{
1148	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
1149	STAM_COUNTER_INC(&pThis->StatMapReset);
1150	vgaResetRemapped(pThis);
1151	}
1152	break;
1153	}
1154	# endif /* IN_RING3 */
1155	case VBE_DISPI_INDEX_VIRT_WIDTH:
1156	case VBE_DISPI_INDEX_X_OFFSET:
1157	case VBE_DISPI_INDEX_Y_OFFSET:
1158	{
1159	pThis->vbe_regs[pThis->vbe_index] = val;
1160	fRecalculate = true;
1161	}
1162	break;
1163	case VBE_DISPI_INDEX_VBOX_VIDEO:
1164	# ifndef IN_RING3
1165	return VINF_IOM_R3_IOPORT_WRITE;
1166	# else
1167	/* Changes in the VGA device are minimal. The device is bypassed. The driver does all work. */
1168	if (val == VBOX_VIDEO_DISABLE_ADAPTER_MEMORY)
1169	pThisCC->pDrv->pfnProcessAdapterData(pThisCC->pDrv, NULL, 0);
1170	else if (val == VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY)
1171	pThisCC->pDrv->pfnProcessAdapterData(pThisCC->pDrv, pThisCC->pbVRam, pThis->vram_size);
1172	else if ((val & 0xFFFF0000) == VBOX_VIDEO_INTERPRET_DISPLAY_MEMORY_BASE)
1173	pThisCC->pDrv->pfnProcessDisplayData(pThisCC->pDrv, pThisCC->pbVRam, val & 0xFFFF);
1174	# endif /* IN_RING3 */
1175	break;
1176	case VBE_DISPI_INDEX_CFG:
1177	pThis->vbe_regs[pThis->vbe_index] = val;
1178	break;
1179	default:
1180	break;
1181	}
1182
1183	if (fRecalculate)
1184	recalculate_data(pThis);
1185	}
1186	return VINF_SUCCESS;
1187	}
1188
1189	#endif /* CONFIG_BOCHS_VBE */
1190
1191	/* called for accesses between 0xa0000 and 0xc0000 */
1192	static uint32_t vga_mem_readb(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC, RTGCPHYS addr, int *prc)
1193	{
1194	int plane;
1195	uint32_t ret;
1196
1197	Log3(("vga: read [0x%x] -> ", addr));
1198
1199	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ
1200	/* VMSVGA keeps the VGA and SVGA framebuffers separate unlike this boch-based
1201	VGA implementation, so we fake it by going to ring-3 and using a heap buffer. */
1202	if (!pThis->svga.fEnabled)
1203	{ /likely/ }
1204	else
1205	{
1206	*prc = VINF_IOM_R3_MMIO_READ;
1207	return 0;
1208	}
1209	#endif
1210
1211
1212	/* convert to VGA memory offset */
1213	#ifndef IN_RC
1214	RTGCPHYS GCPhys = addr; /* save original address */
1215	#endif
1216	addr &= 0x1ffff;
1217
1218	int const memory_map_mode = (pThis->gr[6] >> 2) & 3;
1219	switch(memory_map_mode) {
1220	case 0:
1221	break;
1222	case 1:
1223	if (addr >= 0x10000)
1224	return 0xff;
1225	addr += pThis->bank_offset;
1226	break;
1227	case 2:
1228	addr -= 0x10000;
1229	if (addr >= 0x8000)
1230	return 0xff;
1231	break;
1232	default:
1233	case 3:
1234	addr -= 0x18000;
1235	if (addr >= 0x8000)
1236	return 0xff;
1237	break;
1238	}
1239
1240	if (pThis->sr[4] & 0x08) {
1241	/* chain 4 mode : simplest access */
1242	#ifndef IN_RC
1243	/* If all planes are accessible, then map the page to the frame buffer and make it writable. */
1244	if ( (pThis->sr[2] & 3) == 3
1245	&& !vgaIsRemapped(pThis, GCPhys - 0xa0000)
1246	&& pThis->GCPhysVRAM)
1247	{
1248	/** @todo only allow read access (doesn't work now) */
1249	STAM_COUNTER_INC(&pThis->StatMapPage);
1250	PDMDevHlpMmioMapMmio2Page(pDevIns, pThis->hMmioLegacy, GCPhys - 0xa0000,
1251	pThis->hMmio2VRam, addr, X86_PTE_RW \| X86_PTE_P);
1252	/* Set as dirty as write accesses won't be noticed now. */
1253	vgaR3MarkDirty(pThis, addr);
1254	vgaMarkRemapped(pThis, GCPhys - 0xa0000);
1255	}
1256	#endif /* !IN_RC */
1257	VERIFY_VRAM_READ_OFF_RETURN(pThis, addr, *prc);
1258	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1259	ret = !pThis->svga.fEnabled ? pThisCC->pbVRam[addr]
1260	: addr < VMSVGA_VGA_FB_BACKUP_SIZE ? pThisCC->svga.pbVgaFrameBufferR3[addr] : 0xff;
1261	#else
1262	ret = pThisCC->pbVRam[addr];
1263	#endif
1264	} else if (!(pThis->sr[4] & 0x04)) { /* Host access is controlled by SR4, not GR5! */
1265	/* odd/even mode (aka text mode mapping) */
1266	plane = (pThis->gr[4] & 2) \| (addr & 1);
1267	/* See the comment for a similar line in vga_mem_writeb. */
1268	RTGCPHYS off = ((addr & ~1) * 4) \| plane;
1269	VERIFY_VRAM_READ_OFF_RETURN(pThis, off, *prc);
1270	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1271	ret = !pThis->svga.fEnabled ? pThisCC->pbVRam[off]
1272	: off < VMSVGA_VGA_FB_BACKUP_SIZE ? pThisCC->svga.pbVgaFrameBufferR3[off] : 0xff;
1273	#else
1274	ret = pThisCC->pbVRam[off];
1275	#endif
1276	} else {
1277	/* standard VGA latched access */
1278	VERIFY_VRAM_READ_OFF_RETURN(pThis, addr * 4 + 3, *prc);
1279	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1280	pThis->latch = !pThis->svga.fEnabled ? ((uint32_t *)pThisCC->pbVRam)[addr]
1281	: addr < VMSVGA_VGA_FB_BACKUP_SIZE ? ((uint32_t *)pThisCC->svga.pbVgaFrameBufferR3)[addr] : UINT32_MAX;
1282	#else
1283	pThis->latch = ((uint32_t *)pThisCC->pbVRam)[addr];
1284	#endif
1285	if (!(pThis->gr[5] & 0x08)) {
1286	/* read mode 0 */
1287	plane = pThis->gr[4];
1288	ret = GET_PLANE(pThis->latch, plane);
1289	} else {
1290	/* read mode 1 */
1291	ret = (pThis->latch ^ mask16[pThis->gr[2]]) & mask16[pThis->gr[7]];
1292	ret \|= ret >> 16;
1293	ret \|= ret >> 8;
1294	ret = (~ret) & 0xff;
1295	}
1296	}
1297	Log3((" 0x%02x\n", ret));
1298	return ret;
1299	}
1300
1301	/**
1302	* called for accesses between 0xa0000 and 0xc0000
1303	*/
1304	static VBOXSTRICTRC vga_mem_writeb(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC, RTGCPHYS addr, uint32_t val)
1305	{
1306	int plane, write_mode, b, func_select, mask;
1307	uint32_t write_mask, bit_mask, set_mask;
1308
1309	Log3(("vga: [0x%x] = 0x%02x\n", addr, val));
1310
1311	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ
1312	/* VMSVGA keeps the VGA and SVGA framebuffers separate unlike this boch-based
1313	VGA implementation, so we fake it by going to ring-3 and using a heap buffer. */
1314	if (!pThis->svga.fEnabled) { /likely/ }
1315	else return VINF_IOM_R3_MMIO_WRITE;
1316	#endif
1317
1318	/* convert to VGA memory offset */
1319	#ifndef IN_RC
1320	RTGCPHYS const GCPhys = addr; /* save original address */
1321	#endif
1322	addr &= 0x1ffff;
1323
1324	int const memory_map_mode = (pThis->gr[6] >> 2) & 3;
1325	switch(memory_map_mode) {
1326	case 0:
1327	break;
1328	case 1:
1329	if (addr >= 0x10000)
1330	return VINF_SUCCESS;
1331	addr += pThis->bank_offset;
1332	break;
1333	case 2:
1334	addr -= 0x10000;
1335	if (addr >= 0x8000)
1336	return VINF_SUCCESS;
1337	break;
1338	default:
1339	case 3:
1340	addr -= 0x18000;
1341	if (addr >= 0x8000)
1342	return VINF_SUCCESS;
1343	break;
1344	}
1345
1346	if (pThis->sr[4] & 0x08) {
1347	/* chain 4 mode : simplest access */
1348	plane = addr & 3;
1349	mask = (1 << plane);
1350	if (pThis->sr[2] & mask) {
1351	#ifndef IN_RC
1352	/* If all planes are accessible, then map the page to the frame buffer and make it writable. */
1353	if ( (pThis->sr[2] & 3) == 3
1354	&& !vgaIsRemapped(pThis, GCPhys - 0xa0000)
1355	&& pThis->GCPhysVRAM)
1356	{
1357	STAM_COUNTER_INC(&pThis->StatMapPage);
1358	PDMDevHlpMmioMapMmio2Page(pDevIns, pThis->hMmioLegacy, GCPhys - 0xa0000,
1359	pThis->hMmio2VRam, addr, X86_PTE_RW \| X86_PTE_P);
1360	vgaMarkRemapped(pThis, GCPhys - 0xa0000);
1361	}
1362	#endif /* !IN_RC */
1363
1364	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, addr);
1365	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1366	if (!pThis->svga.fEnabled)
1367	pThisCC->pbVRam[addr] = val;
1368	else if (addr < VMSVGA_VGA_FB_BACKUP_SIZE)
1369	pThisCC->svga.pbVgaFrameBufferR3[addr] = val;
1370	else
1371	{
1372	Log(("vga: chain4: out of vmsvga VGA framebuffer bounds! addr=%#x\n", addr));
1373	return VINF_SUCCESS;
1374	}
1375	#else
1376	pThisCC->pbVRam[addr] = val;
1377	#endif
1378	Log3(("vga: chain4: [0x%x]\n", addr));
1379	pThis->plane_updated \|= mask; /* only used to detect font change */
1380	vgaR3MarkDirty(pThis, addr);
1381	}
1382	} else if (!(pThis->sr[4] & 0x04)) { /* Host access is controlled by SR4, not GR5! */
1383	/* odd/even mode (aka text mode mapping) */
1384	plane = (pThis->gr[4] & 2) \| (addr & 1);
1385	mask = (1 << plane);
1386	if (pThis->sr[2] & mask) {
1387	/* 'addr' is offset in a plane, bit 0 selects the plane.
1388	* Mask the bit 0, convert plane index to vram offset,
1389	* that is multiply by the number of planes,
1390	* and select the plane byte in the vram offset.
1391	*/
1392	addr = ((addr & ~1) * 4) \| plane;
1393	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, addr);
1394	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1395	if (!pThis->svga.fEnabled)
1396	pThisCC->pbVRam[addr] = val;
1397	else if (addr < VMSVGA_VGA_FB_BACKUP_SIZE)
1398	pThisCC->svga.pbVgaFrameBufferR3[addr] = val;
1399	else
1400	{
1401	Log(("vga: odd/even: out of vmsvga VGA framebuffer bounds! addr=%#x\n", addr));
1402	return VINF_SUCCESS;
1403	}
1404	#else
1405	pThisCC->pbVRam[addr] = val;
1406	#endif
1407	Log3(("vga: odd/even: [0x%x]\n", addr));
1408	pThis->plane_updated \|= mask; /* only used to detect font change */
1409	vgaR3MarkDirty(pThis, addr);
1410	}
1411	} else {
1412	/* standard VGA latched access */
1413	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, addr * 4 + 3);
1414
1415	write_mode = pThis->gr[5] & 3;
1416	switch(write_mode) {
1417	default:
1418	case 0:
1419	/* rotate */
1420	b = pThis->gr[3] & 7;
1421	val = ((val >> b) \| (val << (8 - b))) & 0xff;
1422	val \|= val << 8;
1423	val \|= val << 16;
1424
1425	/* apply set/reset mask */
1426	set_mask = mask16[pThis->gr[1]];
1427	val = (val & ~set_mask) \| (mask16[pThis->gr[0]] & set_mask);
1428	bit_mask = pThis->gr[8];
1429	break;
1430	case 1:
1431	val = pThis->latch;
1432	goto do_write;
1433	case 2:
1434	val = mask16[val & 0x0f];
1435	bit_mask = pThis->gr[8];
1436	break;
1437	case 3:
1438	/* rotate */
1439	b = pThis->gr[3] & 7;
1440	val = (val >> b) \| (val << (8 - b));
1441
1442	bit_mask = pThis->gr[8] & val;
1443	val = mask16[pThis->gr[0]];
1444	break;
1445	}
1446
1447	/* apply logical operation */
1448	func_select = pThis->gr[3] >> 3;
1449	switch(func_select) {
1450	case 0:
1451	default:
1452	/* nothing to do */
1453	break;
1454	case 1:
1455	/* and */
1456	val &= pThis->latch;
1457	break;
1458	case 2:
1459	/* or */
1460	val \|= pThis->latch;
1461	break;
1462	case 3:
1463	/* xor */
1464	val ^= pThis->latch;
1465	break;
1466	}
1467
1468	/* apply bit mask */
1469	bit_mask \|= bit_mask << 8;
1470	bit_mask \|= bit_mask << 16;
1471	val = (val & bit_mask) \| (pThis->latch & ~bit_mask);
1472
1473	do_write:
1474	/* mask data according to sr[2] */
1475	mask = pThis->sr[2];
1476	pThis->plane_updated \|= mask; /* only used to detect font change */
1477	write_mask = mask16[mask];
1478	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1479	uint32_t *pu32Dst;
1480	if (!pThis->svga.fEnabled)
1481	pu32Dst = &((uint32_t *)pThisCC->pbVRam)[addr];
1482	else if (addr * 4 + 3 < VMSVGA_VGA_FB_BACKUP_SIZE)
1483	pu32Dst = &((uint32_t *)pThisCC->svga.pbVgaFrameBufferR3)[addr];
1484	else
1485	{
1486	Log(("vga: latch: out of vmsvga VGA framebuffer bounds! addr=%#x\n", addr));
1487	return VINF_SUCCESS;
1488	}
1489	pu32Dst = (pu32Dst & ~write_mask) \| (val & write_mask);
1490	#else
1491	((uint32_t )pThisCC->pbVRam)[addr] = (((uint32_t )pThisCC->pbVRam)[addr] & ~write_mask)
1492	\| (val & write_mask);
1493	#endif
1494	Log3(("vga: latch: [0x%x] mask=0x%08x val=0x%08x\n", addr * 4, write_mask, val));
1495	vgaR3MarkDirty(pThis, (addr * 4));
1496	}
1497
1498	return VINF_SUCCESS;
1499	}
1500
1501	#ifdef IN_RING3
1502
1503	typedef void vga_draw_glyph8_func(uint8_t *d, int linesize,
1504	const uint8_t *font_ptr, int h,
1505	uint32_t fgcol, uint32_t bgcol,
1506	int dscan);
1507	typedef void vga_draw_glyph9_func(uint8_t *d, int linesize,
1508	const uint8_t *font_ptr, int h,
1509	uint32_t fgcol, uint32_t bgcol, int dup9);
1510	typedef void vga_draw_line_func(PVGASTATE pThis, PVGASTATECC pThisCC, uint8_t pbDst, const uint8_t pbSrc, int width);
1511
1512	static inline unsigned int rgb_to_pixel8(unsigned int r, unsigned int g, unsigned b)
1513	{
1514	return ((r >> 5) << 5) \| ((g >> 5) << 2) \| (b >> 6);
1515	}
1516
1517	static inline unsigned int rgb_to_pixel15(unsigned int r, unsigned int g, unsigned b)
1518	{
1519	return ((r >> 3) << 10) \| ((g >> 3) << 5) \| (b >> 3);
1520	}
1521
1522	static inline unsigned int rgb_to_pixel16(unsigned int r, unsigned int g, unsigned b)
1523	{
1524	return ((r >> 3) << 11) \| ((g >> 2) << 5) \| (b >> 3);
1525	}
1526
1527	static inline unsigned int rgb_to_pixel32(unsigned int r, unsigned int g, unsigned b)
1528	{
1529	return (r << 16) \| (g << 8) \| b;
1530	}
1531
1532	#define DEPTH 8
1533	#include "DevVGATmpl.h"
1534
1535	#define DEPTH 15
1536	#include "DevVGATmpl.h"
1537
1538	#define DEPTH 16
1539	#include "DevVGATmpl.h"
1540
1541	#define DEPTH 32
1542	#include "DevVGATmpl.h"
1543
1544	static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b)
1545	{
1546	unsigned int col;
1547	col = rgb_to_pixel8(r, g, b);
1548	col \|= col << 8;
1549	col \|= col << 16;
1550	return col;
1551	}
1552
1553	static unsigned int rgb_to_pixel15_dup(unsigned int r, unsigned int g, unsigned b)
1554	{
1555	unsigned int col;
1556	col = rgb_to_pixel15(r, g, b);
1557	col \|= col << 16;
1558	return col;
1559	}
1560
1561	static unsigned int rgb_to_pixel16_dup(unsigned int r, unsigned int g, unsigned b)
1562	{
1563	unsigned int col;
1564	col = rgb_to_pixel16(r, g, b);
1565	col \|= col << 16;
1566	return col;
1567	}
1568
1569	static unsigned int rgb_to_pixel32_dup(unsigned int r, unsigned int g, unsigned b)
1570	{
1571	return rgb_to_pixel32(r, g, b);
1572	}
1573
1574	/** return true if the palette was modified */
1575	static bool vgaR3UpdatePalette16(PVGASTATE pThis, PVGASTATER3 pThisCC)
1576	{
1577	bool full_update = false;
1578	int i;
1579	uint32_t v, col, *palette;
1580
1581	palette = pThis->last_palette;
1582	for(i = 0; i < 16; i++) {
1583	v = pThis->ar[i];
1584	if (pThis->ar[0x10] & 0x80)
1585	v = ((pThis->ar[0x14] & 0xf) << 4) \| (v & 0xf);
1586	else
1587	v = ((pThis->ar[0x14] & 0xc) << 4) \| (v & 0x3f);
1588	v = v * 3;
1589	col = pThisCC->rgb_to_pixel(c6_to_8(pThis->palette[v]),
1590	c6_to_8(pThis->palette[v + 1]),
1591	c6_to_8(pThis->palette[v + 2]));
1592	if (col != palette[i]) {
1593	full_update = true;
1594	palette[i] = col;
1595	}
1596	}
1597	return full_update;
1598	}
1599
1600	/** return true if the palette was modified */
1601	static bool vgaR3UpdatePalette256(PVGASTATE pThis, PVGASTATER3 pThisCC)
1602	{
1603	bool full_update = false;
1604	int i;
1605	uint32_t v, col, *palette;
1606	int wide_dac;
1607
1608	palette = pThis->last_palette;
1609	v = 0;
1610	wide_dac = (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & (VBE_DISPI_ENABLED \| VBE_DISPI_8BIT_DAC))
1611	== (VBE_DISPI_ENABLED \| VBE_DISPI_8BIT_DAC);
1612	for(i = 0; i < 256; i++) {
1613	if (wide_dac)
1614	col = pThisCC->rgb_to_pixel(pThis->palette[v],
1615	pThis->palette[v + 1],
1616	pThis->palette[v + 2]);
1617	else
1618	col = pThisCC->rgb_to_pixel(c6_to_8(pThis->palette[v]),
1619	c6_to_8(pThis->palette[v + 1]),
1620	c6_to_8(pThis->palette[v + 2]));
1621	if (col != palette[i]) {
1622	full_update = true;
1623	palette[i] = col;
1624	}
1625	v += 3;
1626	}
1627	return full_update;
1628	}
1629
1630	static void vgaR3GetOffsets(PVGASTATE pThis,
1631	uint32_t *pline_offset,
1632	uint32_t *pstart_addr,
1633	uint32_t *pline_compare)
1634	{
1635	uint32_t start_addr, line_offset, line_compare;
1636	#ifdef CONFIG_BOCHS_VBE
1637	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
1638	line_offset = pThis->vbe_line_offset;
1639	start_addr = pThis->vbe_start_addr;
1640	line_compare = 65535;
1641	} else
1642	#endif
1643	{
1644	/* compute line_offset in bytes */
1645	line_offset = pThis->cr[0x13];
1646	line_offset <<= 3;
1647	if (!(pThis->cr[0x14] & 0x40) && !(pThis->cr[0x17] & 0x40))
1648	{
1649	/* Word mode. Used for odd/even modes. */
1650	line_offset *= 2;
1651	}
1652
1653	/* starting address */
1654	start_addr = pThis->cr[0x0d] \| (pThis->cr[0x0c] << 8);
1655
1656	/* line compare */
1657	line_compare = pThis->cr[0x18] \|
1658	((pThis->cr[0x07] & 0x10) << 4) \|
1659	((pThis->cr[0x09] & 0x40) << 3);
1660	}
1661	*pline_offset = line_offset;
1662	*pstart_addr = start_addr;
1663	*pline_compare = line_compare;
1664	}
1665
1666	/** update start_addr and line_offset. Return TRUE if modified */
1667	static bool vgaR3UpdateBasicParams(PVGASTATE pThis, PVGASTATER3 pThisCC)
1668	{
1669	bool full_update = false;
1670	uint32_t start_addr, line_offset, line_compare;
1671
1672	pThisCC->get_offsets(pThis, &line_offset, &start_addr, &line_compare);
1673
1674	if (line_offset != pThis->line_offset \|\|
1675	start_addr != pThis->start_addr \|\|
1676	line_compare != pThis->line_compare) {
1677	pThis->line_offset = line_offset;
1678	pThis->start_addr = start_addr;
1679	pThis->line_compare = line_compare;
1680	full_update = true;
1681	}
1682	return full_update;
1683	}
1684
1685	static inline int vgaR3GetDepthIndex(int depth)
1686	{
1687	switch(depth) {
1688	default:
1689	case 8:
1690	return 0;
1691	case 15:
1692	return 1;
1693	case 16:
1694	return 2;
1695	case 32:
1696	return 3;
1697	}
1698	}
1699
1700	static vga_draw_glyph8_func * const vga_draw_glyph8_table[4] = {
1701	vga_draw_glyph8_8,
1702	vga_draw_glyph8_16,
1703	vga_draw_glyph8_16,
1704	vga_draw_glyph8_32,
1705	};
1706
1707	static vga_draw_glyph8_func * const vga_draw_glyph16_table[4] = {
1708	vga_draw_glyph16_8,
1709	vga_draw_glyph16_16,
1710	vga_draw_glyph16_16,
1711	vga_draw_glyph16_32,
1712	};
1713
1714	static vga_draw_glyph9_func * const vga_draw_glyph9_table[4] = {
1715	vga_draw_glyph9_8,
1716	vga_draw_glyph9_16,
1717	vga_draw_glyph9_16,
1718	vga_draw_glyph9_32,
1719	};
1720
1721	static const uint8_t cursor_glyph[32 * 4] = {
1722	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1723	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1724	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1725	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1726	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1727	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1728	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1729	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1730	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1731	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1732	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1733	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1734	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1735	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1736	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1737	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1738	};
1739
1740	static const uint8_t empty_glyph[32 * 4] = { 0 };
1741
1742	/**
1743	* Text mode update
1744	*/
1745	static int vgaR3DrawText(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATER3 pThisCC, bool full_update,
1746	bool fFailOnResize, bool reset_dirty, PDMIDISPLAYCONNECTOR *pDrv)
1747	{
1748	int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr;
1749	int cx_min, cx_max, linesize, x_incr;
1750	int cx_min_upd, cx_max_upd, cy_start;
1751	uint32_t offset, fgcol, bgcol, v, cursor_offset;
1752	uint8_t d1, d, src, s1, dest, cursor_ptr;
1753	const uint8_t font_ptr, font_base[2];
1754	int dup9, line_offset, depth_index, dscan;
1755	uint32_t *palette;
1756	uint32_t *ch_attr_ptr;
1757	vga_draw_glyph8_func *vga_draw_glyph8;
1758	vga_draw_glyph9_func *vga_draw_glyph9;
1759	uint64_t time_ns;
1760	bool blink_on, chr_blink_flip, cur_blink_flip;
1761	bool blink_enabled, blink_do_redraw;
1762	int uline_pos;
1763	int s_incr;
1764
1765	full_update \|= vgaR3UpdatePalette16(pThis, pThisCC);
1766	palette = pThis->last_palette;
1767
1768	/* compute font data address (in plane 2) */
1769	v = pThis->sr[3];
1770	offset = (((v >> 4) & 1) \| ((v << 1) & 6)) * 8192 * 4 + 2;
1771	if (offset != pThis->font_offsets[0]) {
1772	pThis->font_offsets[0] = offset;
1773	full_update = true;
1774	}
1775	font_base[0] = pThisCC->pbVRam + offset;
1776
1777	offset = (((v >> 5) & 1) \| ((v >> 1) & 6)) * 8192 * 4 + 2;
1778	font_base[1] = pThisCC->pbVRam + offset;
1779	if (offset != pThis->font_offsets[1]) {
1780	pThis->font_offsets[1] = offset;
1781	full_update = true;
1782	}
1783	if (pThis->plane_updated & (1 << 2)) {
1784	/* if the plane 2 was modified since the last display, it
1785	indicates the font may have been modified */
1786	pThis->plane_updated = 0;
1787	full_update = true;
1788	}
1789
1790	/* Underline position */
1791	uline_pos = pThis->cr[0x14] & 0x1f;
1792	if (uline_pos != pThis->last_uline) {
1793	pThis->last_uline = uline_pos;
1794	full_update = true;
1795	}
1796
1797	blink_enabled = !!(pThis->ar[0x10] & 0x08); /* Attribute controller blink enable. */
1798	if (blink_enabled != pThis->last_blink) {
1799	pThis->last_blink = blink_enabled;
1800	full_update = true;
1801	}
1802
1803	full_update \|= vgaR3UpdateBasicParams(pThis, pThisCC);
1804
1805	/* Evaluate word/byte mode. Need to count by 4 because text is only in plane 0. */
1806	s_incr = pThis->cr[0x17] & 0x40 ? 4 : 8;
1807
1808	line_offset = pThis->line_offset;
1809	s1 = pThisCC->pbVRam + (pThis->start_addr * s_incr);
1810
1811	/* double scanning - not for 9-wide modes */
1812	dscan = (pThis->cr[9] >> 7) & 1;
1813
1814	/* total width & height */
1815	cheight = (pThis->cr[9] & 0x1f) + 1;
1816	cw = 8;
1817	if (!(pThis->sr[1] & 0x01))
1818	cw = 9;
1819	if (pThis->sr[1] & 0x08)
1820	cw = 16; /* NOTE: no 18 pixel wide */
1821	x_incr = cw * ((pDrv->cBits + 7) >> 3);
1822	width = (pThis->cr[0x01] + 1);
1823	if (pThis->cr[0x06] == 100) {
1824	/* ugly hack for CGA 160x100x16 - explain me the logic */
1825	height = 100;
1826	} else {
1827	height = pThis->cr[0x12] \|
1828	((pThis->cr[0x07] & 0x02) << 7) \|
1829	((pThis->cr[0x07] & 0x40) << 3);
1830	height = (height + 1) / cheight;
1831	}
1832	/** @todo r=michaln This conditional is questionable; we should be able
1833	* to draw whatver the guest asks for. */
1834	if ((height * width) > CH_ATTR_SIZE) {
1835	/* better than nothing: exit if transient size is too big */
1836	return VINF_SUCCESS;
1837	}
1838
1839	if (width != (int)pThis->last_width \|\| height != (int)pThis->last_height \|\|
1840	cw != pThis->last_cw \|\| cheight != pThis->last_ch) {
1841	if (fFailOnResize)
1842	{
1843	/* The caller does not want to call the pfnResize. */
1844	return VERR_TRY_AGAIN;
1845	}
1846	pThis->last_scr_width = width * cw;
1847	pThis->last_scr_height = height * cheight;
1848	/* For text modes the direct use of guest VRAM is not implemented, so bpp and cbLine are 0 here. */
1849	int rc = pDrv->pfnResize(pDrv, 0, NULL, 0, pThis->last_scr_width, pThis->last_scr_height);
1850	pThis->last_width = width;
1851	pThis->last_height = height;
1852	pThis->last_ch = cheight;
1853	pThis->last_cw = cw;
1854	full_update = true;
1855	if (rc == VINF_VGA_RESIZE_IN_PROGRESS)
1856	return rc;
1857	AssertRC(rc);
1858	}
1859	cursor_offset = ((pThis->cr[0x0e] << 8) \| pThis->cr[0x0f]) - pThis->start_addr;
1860	if (cursor_offset != pThis->cursor_offset \|\|
1861	pThis->cr[0xa] != pThis->cursor_start \|\|
1862	pThis->cr[0xb] != pThis->cursor_end) {
1863	/* if the cursor position changed, we update the old and new
1864	chars */
1865	if (pThis->cursor_offset < CH_ATTR_SIZE)
1866	pThis->last_ch_attr[pThis->cursor_offset] = UINT32_MAX;
1867	if (cursor_offset < CH_ATTR_SIZE)
1868	pThis->last_ch_attr[cursor_offset] = UINT32_MAX;
1869	pThis->cursor_offset = cursor_offset;
1870	pThis->cursor_start = pThis->cr[0xa];
1871	pThis->cursor_end = pThis->cr[0xb];
1872	}
1873	cursor_ptr = pThisCC->pbVRam + (pThis->start_addr + cursor_offset) * s_incr;
1874	depth_index = vgaR3GetDepthIndex(pDrv->cBits);
1875	if (cw == 16)
1876	vga_draw_glyph8 = vga_draw_glyph16_table[depth_index];
1877	else
1878	vga_draw_glyph8 = vga_draw_glyph8_table[depth_index];
1879	vga_draw_glyph9 = vga_draw_glyph9_table[depth_index];
1880
1881	dest = pDrv->pbData;
1882	linesize = pDrv->cbScanline;
1883	ch_attr_ptr = pThis->last_ch_attr;
1884	cy_start = -1;
1885	cx_max_upd = -1;
1886	cx_min_upd = width;
1887
1888	/* Figure out if we're in the visible period of the blink cycle. */
1889	time_ns = PDMDevHlpTMTimeVirtGetNano(pDevIns);
1890	blink_on = (time_ns % VGA_BLINK_PERIOD_FULL) < VGA_BLINK_PERIOD_ON;
1891	chr_blink_flip = false;
1892	cur_blink_flip = false;
1893	if (pThis->last_chr_blink != blink_on)
1894	{
1895	/* Currently cursor and characters blink at the same rate, but they might not. */
1896	pThis->last_chr_blink = blink_on;
1897	pThis->last_cur_blink = blink_on;
1898	chr_blink_flip = true;
1899	cur_blink_flip = true;
1900	}
1901
1902	for(cy = 0; cy < (height - dscan); cy = cy + (1 << dscan)) {
1903	d1 = dest;
1904	src = s1;
1905	cx_min = width;
1906	cx_max = -1;
1907	for(cx = 0; cx < width; cx++) {
1908	ch_attr = (uint16_t )src;
1909	/* Figure out if character needs redrawing due to blink state change. */
1910	blink_do_redraw = blink_enabled && chr_blink_flip && (ch_attr & 0x8000);
1911	if (full_update \|\| ch_attr != (int)*ch_attr_ptr \|\| blink_do_redraw \|\| (src == cursor_ptr && cur_blink_flip)) {
1912	if (cx < cx_min)
1913	cx_min = cx;
1914	if (cx > cx_max)
1915	cx_max = cx;
1916	if (reset_dirty)
1917	*ch_attr_ptr = ch_attr;
1918	#ifdef WORDS_BIGENDIAN
1919	ch = ch_attr >> 8;
1920	cattr = ch_attr & 0xff;
1921	#else
1922	ch = ch_attr & 0xff;
1923	cattr = ch_attr >> 8;
1924	#endif
1925	font_ptr = font_base[(cattr >> 3) & 1];
1926	font_ptr += 32 * 4 * ch;
1927	bgcol = palette[cattr >> 4];
1928	fgcol = palette[cattr & 0x0f];
1929
1930	if (blink_enabled && (cattr & 0x80))
1931	{
1932	bgcol = palette[(cattr >> 4) & 7];
1933	if (!blink_on)
1934	font_ptr = empty_glyph;
1935	}
1936
1937	if (cw != 9) {
1938	if (pThis->fRenderVRAM)
1939	vga_draw_glyph8(d1, linesize, font_ptr, cheight, fgcol, bgcol, dscan);
1940	} else {
1941	dup9 = 0;
1942	if (ch >= 0xb0 && ch <= 0xdf && (pThis->ar[0x10] & 0x04))
1943	dup9 = 1;
1944	if (pThis->fRenderVRAM)
1945	vga_draw_glyph9(d1, linesize, font_ptr, cheight, fgcol, bgcol, dup9);
1946	}
1947
1948	/* Underline. Typically turned off by setting it past cell height. */
1949	if (((cattr & 0x03) == 1) && (uline_pos < cheight))
1950	{
1951	int h;
1952
1953	d = d1 + (linesize * uline_pos << dscan);
1954	h = 1;
1955
1956	if (cw != 9) {
1957	if (pThis->fRenderVRAM)
1958	vga_draw_glyph8(d, linesize, cursor_glyph, h, fgcol, bgcol, dscan);
1959	} else {
1960	if (pThis->fRenderVRAM)
1961	vga_draw_glyph9(d, linesize, cursor_glyph, h, fgcol, bgcol, 1);
1962	}
1963	}
1964
1965	/* Cursor. */
1966	if (src == cursor_ptr &&
1967	!(pThis->cr[0x0a] & 0x20)) {
1968	int line_start, line_last, h;
1969
1970	/* draw the cursor if within the visible period */
1971	if (blink_on) {
1972	line_start = pThis->cr[0x0a] & 0x1f;
1973	line_last = pThis->cr[0x0b] & 0x1f;
1974	/* XXX: check that */
1975	if (line_last > cheight - 1)
1976	line_last = cheight - 1;
1977	if (line_last >= line_start && line_start < cheight) {
1978	h = line_last - line_start + 1;
1979	d = d1 + (linesize * line_start << dscan);
1980	if (cw != 9) {
1981	if (pThis->fRenderVRAM)
1982	vga_draw_glyph8(d, linesize, cursor_glyph, h, fgcol, bgcol, dscan);
1983	} else {
1984	if (pThis->fRenderVRAM)
1985	vga_draw_glyph9(d, linesize, cursor_glyph, h, fgcol, bgcol, 1);
1986	}
1987	}
1988	}
1989	}
1990	}
1991	d1 += x_incr;
1992	src += s_incr; /* Even in text mode, word/byte mode matters. */
1993	ch_attr_ptr++;
1994	}
1995	if (cx_max != -1) {
1996	/* Keep track of the bounding rectangle for updates. */
1997	if (cy_start == -1)
1998	cy_start = cy;
1999	if (cx_min_upd > cx_min)
2000	cx_min_upd = cx_min;
2001	if (cx_max_upd < cx_max)
2002	cx_max_upd = cx_max;
2003	} else if (cy_start >= 0) {
2004	/* Flush updates to display. */
2005	pDrv->pfnUpdateRect(pDrv, cx_min_upd * cw, cy_start * cheight,
2006	(cx_max_upd - cx_min_upd + 1) * cw, (cy - cy_start) * cheight);
2007	cy_start = -1;
2008	cx_max_upd = -1;
2009	cx_min_upd = width;
2010	}
2011
2012	dest += linesize * cheight << dscan;
2013	s1 += line_offset;
2014
2015	/* Line compare works in text modes, too. */
2016	/** @todo r=michaln This is inaccurate; text should be rendered line by line
2017	* and line compare checked after every line. */
2018	if ((uint32_t)cy == (pThis->line_compare / cheight))
2019	s1 = pThisCC->pbVRam;
2020	}
2021	if (cy_start >= 0)
2022	/* Flush any remaining changes to display. */
2023	pDrv->pfnUpdateRect(pDrv, cx_min_upd * cw, cy_start * cheight,
2024	(cx_max_upd - cx_min_upd + 1) * cw, (cy - cy_start) * cheight);
2025	return VINF_SUCCESS;
2026	}
2027
2028	enum {
2029	VGA_DRAW_LINE2,
2030	VGA_DRAW_LINE2D2,
2031	VGA_DRAW_LINE4,
2032	VGA_DRAW_LINE4D2,
2033	VGA_DRAW_LINE8D2,
2034	VGA_DRAW_LINE8,
2035	VGA_DRAW_LINE15,
2036	VGA_DRAW_LINE16,
2037	VGA_DRAW_LINE24,
2038	VGA_DRAW_LINE32,
2039	VGA_DRAW_LINE_NB
2040	};
2041
2042	static vga_draw_line_func * const vga_draw_line_table[4 * VGA_DRAW_LINE_NB] = {
2043	vga_draw_line2_8,
2044	vga_draw_line2_16,
2045	vga_draw_line2_16,
2046	vga_draw_line2_32,
2047
2048	vga_draw_line2d2_8,
2049	vga_draw_line2d2_16,
2050	vga_draw_line2d2_16,
2051	vga_draw_line2d2_32,
2052
2053	vga_draw_line4_8,
2054	vga_draw_line4_16,
2055	vga_draw_line4_16,
2056	vga_draw_line4_32,
2057
2058	vga_draw_line4d2_8,
2059	vga_draw_line4d2_16,
2060	vga_draw_line4d2_16,
2061	vga_draw_line4d2_32,
2062
2063	vga_draw_line8d2_8,
2064	vga_draw_line8d2_16,
2065	vga_draw_line8d2_16,
2066	vga_draw_line8d2_32,
2067
2068	vga_draw_line8_8,
2069	vga_draw_line8_16,
2070	vga_draw_line8_16,
2071	vga_draw_line8_32,
2072
2073	vga_draw_line15_8,
2074	vga_draw_line15_15,
2075	vga_draw_line15_16,
2076	vga_draw_line15_32,
2077
2078	vga_draw_line16_8,
2079	vga_draw_line16_15,
2080	vga_draw_line16_16,
2081	vga_draw_line16_32,
2082
2083	vga_draw_line24_8,
2084	vga_draw_line24_15,
2085	vga_draw_line24_16,
2086	vga_draw_line24_32,
2087
2088	vga_draw_line32_8,
2089	vga_draw_line32_15,
2090	vga_draw_line32_16,
2091	vga_draw_line32_32,
2092	};
2093
2094	static int vgaR3GetBpp(PVGASTATE pThis)
2095	{
2096	int ret;
2097	#ifdef CONFIG_BOCHS_VBE
2098	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
2099	ret = pThis->vbe_regs[VBE_DISPI_INDEX_BPP];
2100	} else
2101	#endif
2102	{
2103	ret = 0;
2104	}
2105	return ret;
2106	}
2107
2108	static void vgaR3GetResolution(PVGASTATE pThis, int pwidth, int pheight)
2109	{
2110	int width, height;
2111	#ifdef CONFIG_BOCHS_VBE
2112	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
2113	width = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
2114	height = RT_MIN(pThis->vbe_regs[VBE_DISPI_INDEX_YRES],
2115	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT]);
2116	} else
2117	#endif
2118	{
2119	width = (pThis->cr[0x01] + 1) * 8;
2120	height = pThis->cr[0x12] \|
2121	((pThis->cr[0x07] & 0x02) << 7) \|
2122	((pThis->cr[0x07] & 0x40) << 3);
2123	height = (height + 1);
2124	}
2125	*pwidth = width;
2126	*pheight = height;
2127	}
2128
2129
2130	/**
2131	* Performs the display driver resizing when in graphics mode.
2132	*
2133	* This will recalc / update any status data depending on the driver
2134	* properties (bit depth mostly).
2135	*
2136	* @returns VINF_SUCCESS on success.
2137	* @returns VINF_VGA_RESIZE_IN_PROGRESS if the operation wasn't complete.
2138	* @param pThis Pointer to the shared VGA state.
2139	* @param pThisCC Pointer to the ring-3 VGA state.
2140	* @param cx The width.
2141	* @param cy The height.
2142	* @param pDrv The display connector.
2143	*/
2144	static int vgaR3ResizeGraphic(PVGASTATE pThis, PVGASTATER3 pThisCC, int cx, int cy, PDMIDISPLAYCONNECTOR *pDrv)
2145	{
2146	const unsigned cBits = pThisCC->get_bpp(pThis);
2147
2148	int rc;
2149	AssertReturn(cx, VERR_INVALID_PARAMETER);
2150	AssertReturn(cy, VERR_INVALID_PARAMETER);
2151	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
2152
2153	if (!pThis->line_offset)
2154	return VERR_INTERNAL_ERROR;
2155
2156	#if 0 //def VBOX_WITH_VDMA
2157	/** @todo we get a second resize here when VBVA is on, while we actually should not */
2158	/* do not do pfnResize in case VBVA is on since all mode changes are performed over VBVA
2159	* we are checking for VDMA state here to ensure this code works only for WDDM driver,
2160	* although we should avoid calling pfnResize for XPDM as well, since pfnResize is actually an extra resize
2161	* event and generally only pfnVBVAxxx calls should be used with HGSMI + VBVA
2162	*
2163	* The reason for doing this for WDDM driver only now is to avoid regressions of the current code */
2164	PVBOXVDMAHOST pVdma = pThisCC->pVdma;
2165	if (pVdma && vboxVDMAIsEnabled(pVdma))
2166	rc = VINF_SUCCESS;
2167	else
2168	#endif
2169	{
2170	/* Skip the resize if the values are not valid. */
2171	if (pThis->start_addr * 4 + pThis->line_offset * cy < pThis->vram_size)
2172	/* Take into account the programmed start address (in DWORDs) of the visible screen. */
2173	rc = pDrv->pfnResize(pDrv, cBits, pThisCC->pbVRam + pThis->start_addr * 4, pThis->line_offset, cx, cy);
2174	else
2175	{
2176	/* Change nothing in the VGA state. Lets hope the guest will eventually programm correct values. */
2177	return VERR_TRY_AGAIN;
2178	}
2179	}
2180
2181	/* last stuff */
2182	pThis->last_bpp = cBits;
2183	pThis->last_scr_width = cx;
2184	pThis->last_scr_height = cy;
2185	pThis->last_width = cx;
2186	pThis->last_height = cy;
2187
2188	if (rc == VINF_VGA_RESIZE_IN_PROGRESS)
2189	return rc;
2190	AssertRC(rc);
2191
2192	/* update palette */
2193	switch (pDrv->cBits)
2194	{
2195	case 32: pThisCC->rgb_to_pixel = rgb_to_pixel32_dup; break;
2196	case 16:
2197	default: pThisCC->rgb_to_pixel = rgb_to_pixel16_dup; break;
2198	case 15: pThisCC->rgb_to_pixel = rgb_to_pixel15_dup; break;
2199	case 8: pThisCC->rgb_to_pixel = rgb_to_pixel8_dup; break;
2200	}
2201	if (pThis->shift_control == 0)
2202	vgaR3UpdatePalette16(pThis, pThisCC);
2203	else if (pThis->shift_control == 1)
2204	vgaR3UpdatePalette16(pThis, pThisCC);
2205	return VINF_SUCCESS;
2206	}
2207
2208	# ifdef VBOX_WITH_VMSVGA
2209
2210	# if 0 /* unused? */
2211	int vgaR3UpdateDisplay(PVGASTATE pThis, PVGASTATER3 pThisCC, unsigned xStart, unsigned yStart, unsigned cx, unsigned cy, PDMIDISPLAYCONNECTOR *pDrv)
2212	{
2213	uint32_t v;
2214	vga_draw_line_func *vga_draw_line;
2215
2216	if (!pThis->fRenderVRAM)
2217	{
2218	pDrv->pfnUpdateRect(pDrv, xStart, yStart, cx, cy);
2219	return VINF_SUCCESS;
2220	}
2221	/** @todo might crash if a blit follows a resolution change very quickly (seen this many times!) */
2222
2223	if ( pThis->svga.uWidth == VMSVGA_VAL_UNINITIALIZED
2224	\|\| pThis->svga.uHeight == VMSVGA_VAL_UNINITIALIZED
2225	\|\| pThis->svga.uBpp == VMSVGA_VAL_UNINITIALIZED)
2226	{
2227	/* Intermediate state; skip redraws. */
2228	AssertFailed();
2229	return VINF_SUCCESS;
2230	}
2231
2232	uint32_t cBits;
2233	switch (pThis->svga.uBpp) {
2234	default:
2235	case 0:
2236	case 8:
2237	AssertFailed();
2238	return VERR_NOT_IMPLEMENTED;
2239	case 15:
2240	v = VGA_DRAW_LINE15;
2241	cBits = 16;
2242	break;
2243	case 16:
2244	v = VGA_DRAW_LINE16;
2245	cBits = 16;
2246	break;
2247	case 24:
2248	v = VGA_DRAW_LINE24;
2249	cBits = 24;
2250	break;
2251	case 32:
2252	v = VGA_DRAW_LINE32;
2253	cBits = 32;
2254	break;
2255	}
2256	vga_draw_line = vga_draw_line_table[v * 4 + vgaR3GetDepthIndex(pDrv->cBits)];
2257
2258	uint32_t offSrc = (xStart * cBits) / 8 + pThis->svga.cbScanline * yStart;
2259	uint32_t offDst = (xStart * RT_ALIGN(pDrv->cBits, 8)) / 8 + pDrv->cbScanline * yStart;
2260
2261	uint8_t *pbDst = pDrv->pbData + offDst;
2262	uint8_t const *pbSrc = pThisCC->pbVRam + offSrc;
2263
2264	for (unsigned y = yStart; y < yStart + cy; y++)
2265	{
2266	vga_draw_line(pThis, pThisCC, pbDst, pbSrc, cx);
2267
2268	pbDst += pDrv->cbScanline;
2269	pbSrc += pThis->svga.cbScanline;
2270	}
2271	pDrv->pfnUpdateRect(pDrv, xStart, yStart, cx, cy);
2272
2273	return VINF_SUCCESS;
2274	}
2275	# endif
2276
2277	/**
2278	* graphic modes
2279	*/
2280	static int vmsvgaR3DrawGraphic(PVGASTATE pThis, PVGASTATER3 pThisCC, bool fFullUpdate,
2281	bool fFailOnResize, bool reset_dirty, PDMIDISPLAYCONNECTOR *pDrv)
2282	{
2283	RT_NOREF1(fFailOnResize);
2284
2285	uint32_t const cx = pThis->last_scr_width;
2286	uint32_t const cxDisplay = cx;
2287	uint32_t const cy = pThis->last_scr_height;
2288	uint32_t cBits = pThis->last_bpp;
2289
2290	if ( cx == VMSVGA_VAL_UNINITIALIZED
2291	\|\| cx == 0
2292	\|\| cy == VMSVGA_VAL_UNINITIALIZED
2293	\|\| cy == 0
2294	\|\| cBits == VMSVGA_VAL_UNINITIALIZED
2295	\|\| cBits == 0)
2296	{
2297	/* Intermediate state; skip redraws. */
2298	return VINF_SUCCESS;
2299	}
2300
2301	unsigned v;
2302	switch (cBits)
2303	{
2304	case 8:
2305	/* Note! experimental, not sure if this really works... */
2306	/** @todo fFullUpdate \|= vgaR3UpdatePalette256(pThis); - need fFullUpdate but not
2307	* copying anything to last_palette. */
2308	v = VGA_DRAW_LINE8;
2309	break;
2310	case 15:
2311	v = VGA_DRAW_LINE15;
2312	cBits = 16;
2313	break;
2314	case 16:
2315	v = VGA_DRAW_LINE16;
2316	break;
2317	case 24:
2318	v = VGA_DRAW_LINE24;
2319	break;
2320	case 32:
2321	v = VGA_DRAW_LINE32;
2322	break;
2323	default:
2324	case 0:
2325	AssertFailed();
2326	return VERR_NOT_IMPLEMENTED;
2327	}
2328	vga_draw_line_func pfnVgaDrawLine = vga_draw_line_table[v 4 + vgaR3GetDepthIndex(pDrv->cBits)];
2329
2330	Assert(!pThisCC->cursor_invalidate);
2331	Assert(!pThisCC->cursor_draw_line);
2332	//not used// if (pThisCC->cursor_invalidate)
2333	//not used// pThisCC->cursor_invalidate(pThis);
2334
2335	uint8_t *pbDst = pDrv->pbData;
2336	uint32_t cbDstScanline = pDrv->cbScanline;
2337	uint32_t offSrcStart = 0; /* always start at the beginning of the framebuffer */
2338	uint32_t cbScanline = (cx * cBits + 7) / 8; /* The visible width of a scanline. */
2339	uint32_t yUpdateRectTop = UINT32_MAX;
2340	uint32_t offPageMin = UINT32_MAX;
2341	int32_t offPageMax = -1;
2342	uint32_t y;
2343	for (y = 0; y < cy; y++)
2344	{
2345	uint32_t offSrcLine = offSrcStart + y * cbScanline;
2346	uint32_t offPage0 = offSrcLine & ~(uint32_t)GUEST_PAGE_OFFSET_MASK;
2347	uint32_t offPage1 = (offSrcLine + cbScanline - 1) & ~(uint32_t)GUEST_PAGE_OFFSET_MASK;
2348	/** @todo r=klaus this assumes that a line is fully covered by 3 pages,
2349	* irrespective of alignment. Not guaranteed for high res modes, i.e.
2350	* anything wider than 2050 pixels @32bpp. Need to check all pages
2351	* between the first and last one. */
2352	bool fUpdate = fFullUpdate \| vgaR3IsDirty(pThis, offPage0) \| vgaR3IsDirty(pThis, offPage1);
2353	if (offPage1 - offPage0 > GUEST_PAGE_SIZE)
2354	/* if wide line, can use another page */
2355	fUpdate \|= vgaR3IsDirty(pThis, offPage0 + GUEST_PAGE_SIZE);
2356	/* explicit invalidation for the hardware cursor */
2357	fUpdate \|= (pThis->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;
2358	if (fUpdate)
2359	{
2360	if (yUpdateRectTop == UINT32_MAX)
2361	yUpdateRectTop = y;
2362	if (offPage0 < offPageMin)
2363	offPageMin = offPage0;
2364	if ((int32_t)offPage1 > offPageMax)
2365	offPageMax = offPage1;
2366	if (pThis->fRenderVRAM)
2367	pfnVgaDrawLine(pThis, pThisCC, pbDst, pThisCC->pbVRam + offSrcLine, cx);
2368	//not used// if (pThisCC->cursor_draw_line)
2369	//not used// pThisCC->cursor_draw_line(pThis, pbDst, y);
2370	}
2371	else if (yUpdateRectTop != UINT32_MAX)
2372	{
2373	/* flush to display */
2374	Log(("Flush to display (%d,%d)(%d,%d)\n", 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop));
2375	pDrv->pfnUpdateRect(pDrv, 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop);
2376	yUpdateRectTop = UINT32_MAX;
2377	}
2378	pbDst += cbDstScanline;
2379	}
2380	if (yUpdateRectTop != UINT32_MAX)
2381	{
2382	/* flush to display */
2383	Log(("Flush to display (%d,%d)(%d,%d)\n", 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop));
2384	pDrv->pfnUpdateRect(pDrv, 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop);
2385	}
2386
2387	/* reset modified pages */
2388	if (offPageMax != -1 && reset_dirty)
2389	vgaR3ResetDirty(pThis, offPageMin, offPageMax + GUEST_PAGE_SIZE);
2390	memset(pThis->invalidated_y_table, 0, ((cy + 31) >> 5) * 4);
2391
2392	return VINF_SUCCESS;
2393	}
2394
2395	# endif /* VBOX_WITH_VMSVGA */
2396
2397	/**
2398	* graphic modes
2399	*/
2400	static int vgaR3DrawGraphic(PVGASTATE pThis, PVGASTATER3 pThisCC, bool full_update, bool fFailOnResize, bool reset_dirty,
2401	PDMIDISPLAYCONNECTOR *pDrv)
2402	{
2403	int y1, y2, y, page_min, page_max, linesize, y_start, double_scan;
2404	int width, height, shift_control, line_offset, page0, page1, bwidth, bits;
2405	int disp_width, multi_run;
2406	uint8_t *d;
2407	uint32_t v, addr1, addr;
2408	vga_draw_line_func *pfnVgaDrawLine;
2409
2410	bool offsets_changed = vgaR3UpdateBasicParams(pThis, pThisCC);
2411
2412	full_update \|= offsets_changed;
2413
2414	pThisCC->get_resolution(pThis, &width, &height);
2415	disp_width = width;
2416
2417	shift_control = (pThis->gr[0x05] >> 5) & 3;
2418	double_scan = (pThis->cr[0x09] >> 7);
2419	multi_run = double_scan;
2420	if (shift_control != pThis->shift_control \|\|
2421	double_scan != pThis->double_scan) {
2422	full_update = true;
2423	pThis->shift_control = shift_control;
2424	pThis->double_scan = double_scan;
2425	}
2426
2427	if (shift_control == 0) {
2428	full_update \|= vgaR3UpdatePalette16(pThis, pThisCC);
2429	if (pThis->sr[0x01] & 8) {
2430	v = VGA_DRAW_LINE4D2;
2431	disp_width <<= 1;
2432	} else {
2433	v = VGA_DRAW_LINE4;
2434	}
2435	bits = 4;
2436	} else if (shift_control == 1) {
2437	full_update \|= vgaR3UpdatePalette16(pThis, pThisCC);
2438	if (pThis->sr[0x01] & 8) {
2439	v = VGA_DRAW_LINE2D2;
2440	disp_width <<= 1;
2441	} else {
2442	v = VGA_DRAW_LINE2;
2443	}
2444	bits = 4;
2445	} else {
2446	switch(pThisCC->get_bpp(pThis)) {
2447	default:
2448	case 0:
2449	full_update \|= vgaR3UpdatePalette256(pThis, pThisCC);
2450	v = VGA_DRAW_LINE8D2;
2451	bits = 4;
2452	break;
2453	case 8:
2454	full_update \|= vgaR3UpdatePalette256(pThis, pThisCC);
2455	v = VGA_DRAW_LINE8;
2456	bits = 8;
2457	break;
2458	case 15:
2459	v = VGA_DRAW_LINE15;
2460	bits = 16;
2461	break;
2462	case 16:
2463	v = VGA_DRAW_LINE16;
2464	bits = 16;
2465	break;
2466	case 24:
2467	v = VGA_DRAW_LINE24;
2468	bits = 24;
2469	break;
2470	case 32:
2471	v = VGA_DRAW_LINE32;
2472	bits = 32;
2473	break;
2474	}
2475	}
2476	if ( disp_width != (int)pThis->last_width
2477	\|\| height != (int)pThis->last_height
2478	\|\| pThisCC->get_bpp(pThis) != (int)pThis->last_bpp
2479	\|\| (offsets_changed && !pThis->fRenderVRAM))
2480	{
2481	if (fFailOnResize)
2482	{
2483	/* The caller does not want to call the pfnResize. */
2484	return VERR_TRY_AGAIN;
2485	}
2486	int rc = vgaR3ResizeGraphic(pThis, pThisCC, disp_width, height, pDrv);
2487	if (rc != VINF_SUCCESS) /* Return any rc, particularly VINF_VGA_RESIZE_IN_PROGRESS, to the caller. */
2488	return rc;
2489	full_update = true;
2490	}
2491
2492	if (pThis->fRenderVRAM)
2493	{
2494	/* Do not update the destination buffer if it is not big enough.
2495	* Can happen if the resize request was ignored by the driver.
2496	* Compare with 'disp_width', because it is what the framebuffer has been resized to.
2497	*/
2498	if ( pDrv->cx != (uint32_t)disp_width
2499	\|\| pDrv->cy != (uint32_t)height)
2500	{
2501	LogRel(("Framebuffer mismatch: vga %dx%d, drv %dx%d!!!\n",
2502	disp_width, height,
2503	pDrv->cx, pDrv->cy));
2504	return VINF_SUCCESS;
2505	}
2506	}
2507
2508	pfnVgaDrawLine = vga_draw_line_table[v * 4 + vgaR3GetDepthIndex(pDrv->cBits)];
2509
2510	if (pThisCC->cursor_invalidate)
2511	pThisCC->cursor_invalidate(pThis);
2512
2513	line_offset = pThis->line_offset;
2514	#if 0
2515	Log(("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n",
2516	width, height, v, line_offset, pThis->cr[9], pThis->cr[0x17], pThis->line_compare, pThis->sr[0x01]));
2517	#endif
2518	addr1 = (pThis->start_addr * 4);
2519	bwidth = (width * bits + 7) / 8; /* The visible width of a scanline. */
2520	y_start = -1;
2521	page_min = 0x7fffffff;
2522	page_max = -1;
2523	d = pDrv->pbData;
2524	linesize = pDrv->cbScanline;
2525
2526	if (!(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED))
2527	pThis->vga_addr_mask = 0x3ffff;
2528	else
2529	pThis->vga_addr_mask = UINT32_MAX;
2530
2531	y1 = 0;
2532	y2 = pThis->cr[0x09] & 0x1F; /* starting row scan count */
2533	for(y = 0; y < height; y++) {
2534	addr = addr1;
2535	/* CGA/MDA compatibility. Note that these addresses are all
2536	* shifted left by two compared to VGA specs.
2537	*/
2538	if (!(pThis->cr[0x17] & 1)) {
2539	addr = (addr & ~(1 << 15)) \| ((y1 & 1) << 15);
2540	}
2541	if (!(pThis->cr[0x17] & 2)) {
2542	addr = (addr & ~(1 << 16)) \| ((y1 & 2) << 15);
2543	}
2544	addr &= pThis->vga_addr_mask;
2545	page0 = addr & ~(uint32_t)GUEST_PAGE_OFFSET_MASK;
2546	page1 = (addr + bwidth - 1) & ~(uint32_t)GUEST_PAGE_OFFSET_MASK;
2547	/** @todo r=klaus this assumes that a line is fully covered by 3 pages,
2548	* irrespective of alignment. Not guaranteed for high res modes, i.e.
2549	* anything wider than 2050 pixels @32bpp. Need to check all pages
2550	* between the first and last one. */
2551	bool update = full_update \| vgaR3IsDirty(pThis, page0) \| vgaR3IsDirty(pThis, page1);
2552	if (page1 - page0 > GUEST_PAGE_SIZE) {
2553	/* if wide line, can use another page */
2554	update \|= vgaR3IsDirty(pThis, page0 + GUEST_PAGE_SIZE);
2555	}
2556	/* explicit invalidation for the hardware cursor */
2557	update \|= (pThis->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;
2558	if (update) {
2559	if (y_start < 0)
2560	y_start = y;
2561	if (page0 < page_min)
2562	page_min = page0;
2563	if (page1 > page_max)
2564	page_max = page1;
2565	if (pThis->fRenderVRAM)
2566	pfnVgaDrawLine(pThis, pThisCC, d, pThisCC->pbVRam + addr, width);
2567	if (pThisCC->cursor_draw_line)
2568	pThisCC->cursor_draw_line(pThis, d, y);
2569	} else {
2570	if (y_start >= 0) {
2571	/* flush to display */
2572	pDrv->pfnUpdateRect(pDrv, 0, y_start, disp_width, y - y_start);
2573	y_start = -1;
2574	}
2575	}
2576	if (!multi_run) {
2577	y1++;
2578	multi_run = double_scan;
2579
2580	if (y2 == 0) {
2581	y2 = pThis->cr[0x09] & 0x1F;
2582	addr1 += line_offset;
2583	} else {
2584	--y2;
2585	}
2586	} else {
2587	multi_run--;
2588	}
2589	/* line compare acts on the displayed lines */
2590	if ((uint32_t)y == pThis->line_compare)
2591	addr1 = 0;
2592	d += linesize;
2593	}
2594	if (y_start >= 0) {
2595	/* flush to display */
2596	pDrv->pfnUpdateRect(pDrv, 0, y_start, disp_width, y - y_start);
2597	}
2598	/* reset modified pages */
2599	if (page_max != -1 && reset_dirty) {
2600	vgaR3ResetDirty(pThis, page_min, page_max + GUEST_PAGE_SIZE);
2601	}
2602	memset(pThis->invalidated_y_table, 0, ((height + 31) >> 5) * 4);
2603	return VINF_SUCCESS;
2604	}
2605
2606	/**
2607	* blanked modes
2608	*/
2609	static int vgaR3DrawBlank(PVGASTATE pThis, PVGASTATER3 pThisCC, bool full_update,
2610	bool fFailOnResize, bool reset_dirty, PDMIDISPLAYCONNECTOR *pDrv)
2611	{
2612	int i, w, val;
2613	uint8_t *d;
2614	uint32_t cbScanline = pDrv->cbScanline;
2615	uint32_t page_min, page_max;
2616
2617	if (pThis->last_width != 0)
2618	{
2619	if (fFailOnResize)
2620	{
2621	/* The caller does not want to call the pfnResize. */
2622	return VERR_TRY_AGAIN;
2623	}
2624	pThis->last_width = 0;
2625	pThis->last_height = 0;
2626	/* For blanking signal width=0, height=0, bpp=0 and cbLine=0 here.
2627	* There is no screen content, which distinguishes it from text mode. */
2628	pDrv->pfnResize(pDrv, 0, NULL, 0, 0, 0);
2629	}
2630	/* reset modified pages, i.e. everything */
2631	if (reset_dirty && pThis->last_scr_height > 0)
2632	{
2633	page_min = (pThis->start_addr * 4) & ~(uint32_t)GUEST_PAGE_OFFSET_MASK;
2634	/* round up page_max by one page, as otherwise this can be -GUEST_PAGE_SIZE,
2635	* which causes assertion trouble in vgaR3ResetDirty. */
2636	page_max = (pThis->start_addr * 4 + pThis->line_offset * pThis->last_scr_height - 1 + GUEST_PAGE_SIZE)
2637	& ~(uint32_t)GUEST_PAGE_OFFSET_MASK;
2638	vgaR3ResetDirty(pThis, page_min, page_max + GUEST_PAGE_SIZE);
2639	}
2640	if (pDrv->pbData == pThisCC->pbVRam) /* Do not clear the VRAM itself. */
2641	return VINF_SUCCESS;
2642	if (!full_update)
2643	return VINF_SUCCESS;
2644	if (pThis->last_scr_width <= 0 \|\| pThis->last_scr_height <= 0)
2645	return VINF_SUCCESS;
2646	if (pDrv->cBits == 8)
2647	val = pThisCC->rgb_to_pixel(0, 0, 0);
2648	else
2649	val = 0;
2650	w = pThis->last_scr_width * ((pDrv->cBits + 7) >> 3);
2651	d = pDrv->pbData;
2652	if (pThis->fRenderVRAM)
2653	{
2654	for(i = 0; i < (int)pThis->last_scr_height; i++) {
2655	memset(d, val, w);
2656	d += cbScanline;
2657	}
2658	}
2659	pDrv->pfnUpdateRect(pDrv, 0, 0, pThis->last_scr_width, pThis->last_scr_height);
2660	return VINF_SUCCESS;
2661	}
2662
2663
2664	#define GMODE_TEXT 0
2665	#define GMODE_GRAPH 1
2666	#define GMODE_BLANK 2
2667	#ifdef VBOX_WITH_VMSVGA
2668	#define GMODE_SVGA 3
2669	#endif
2670
2671	/**
2672	* Worker for vgaR3PortUpdateDisplay(), vgaR3UpdateDisplayAllInternal() and
2673	* vgaR3PortTakeScreenshot().
2674	*/
2675	static int vgaR3UpdateDisplay(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATER3 pThisCC, bool fUpdateAll,
2676	bool fFailOnResize, bool reset_dirty, PDMIDISPLAYCONNECTOR pDrv, int32_t pcur_graphic_mode)
2677	{
2678	int rc = VINF_SUCCESS;
2679	int graphic_mode;
2680
2681	if (pDrv->cBits == 0) {
2682	/* nothing to do */
2683	} else {
2684	switch(pDrv->cBits) {
2685	case 8:
2686	pThisCC->rgb_to_pixel = rgb_to_pixel8_dup;
2687	break;
2688	case 15:
2689	pThisCC->rgb_to_pixel = rgb_to_pixel15_dup;
2690	break;
2691	default:
2692	case 16:
2693	pThisCC->rgb_to_pixel = rgb_to_pixel16_dup;
2694	break;
2695	case 32:
2696	pThisCC->rgb_to_pixel = rgb_to_pixel32_dup;
2697	break;
2698	}
2699
2700	#ifdef VBOX_WITH_VMSVGA
2701	if (pThis->svga.fEnabled) {
2702	graphic_mode = GMODE_SVGA;
2703	}
2704	else
2705	#endif
2706	if (!(pThis->ar_index & 0x20) \|\| (pThis->sr[0x01] & 0x20)) {
2707	graphic_mode = GMODE_BLANK;
2708	} else {
2709	graphic_mode = pThis->gr[6] & 1 ? GMODE_GRAPH : GMODE_TEXT;
2710	}
2711	bool full_update = fUpdateAll \|\| graphic_mode != *pcur_graphic_mode;
2712	if (full_update) {
2713	*pcur_graphic_mode = graphic_mode;
2714	}
2715	switch(graphic_mode) {
2716	case GMODE_TEXT:
2717	rc = vgaR3DrawText(pDevIns, pThis, pThisCC, full_update, fFailOnResize, reset_dirty, pDrv);
2718	break;
2719	case GMODE_GRAPH:
2720	rc = vgaR3DrawGraphic(pThis, pThisCC, full_update, fFailOnResize, reset_dirty, pDrv);
2721	break;
2722	#ifdef VBOX_WITH_VMSVGA
2723	case GMODE_SVGA:
2724	rc = vmsvgaR3DrawGraphic(pThis, pThisCC, full_update, fFailOnResize, reset_dirty, pDrv);
2725	break;
2726	#endif
2727	case GMODE_BLANK:
2728	default:
2729	rc = vgaR3DrawBlank(pThis, pThisCC, full_update, fFailOnResize, reset_dirty, pDrv);
2730	break;
2731	}
2732	}
2733	return rc;
2734	}
2735
2736	/**
2737	* Worker for vgaR3SaveExec().
2738	*/
2739	static void vga_save(PCPDMDEVHLPR3 pHlp, PSSMHANDLE pSSM, PVGASTATE pThis)
2740	{
2741	int i;
2742
2743	pHlp->pfnSSMPutU32(pSSM, pThis->latch);
2744	pHlp->pfnSSMPutU8(pSSM, pThis->sr_index);
2745	pHlp->pfnSSMPutMem(pSSM, pThis->sr, 8);
2746	pHlp->pfnSSMPutU8(pSSM, pThis->gr_index);
2747	pHlp->pfnSSMPutMem(pSSM, pThis->gr, 16);
2748	pHlp->pfnSSMPutU8(pSSM, pThis->ar_index);
2749	pHlp->pfnSSMPutMem(pSSM, pThis->ar, 21);
2750	pHlp->pfnSSMPutU32(pSSM, pThis->ar_flip_flop);
2751	pHlp->pfnSSMPutU8(pSSM, pThis->cr_index);
2752	pHlp->pfnSSMPutMem(pSSM, pThis->cr, 256);
2753	pHlp->pfnSSMPutU8(pSSM, pThis->msr);
2754	pHlp->pfnSSMPutU8(pSSM, pThis->fcr);
2755	pHlp->pfnSSMPutU8(pSSM, pThis->st00);
2756	pHlp->pfnSSMPutU8(pSSM, pThis->st01);
2757
2758	pHlp->pfnSSMPutU8(pSSM, pThis->dac_state);
2759	pHlp->pfnSSMPutU8(pSSM, pThis->dac_sub_index);
2760	pHlp->pfnSSMPutU8(pSSM, pThis->dac_read_index);
2761	pHlp->pfnSSMPutU8(pSSM, pThis->dac_write_index);
2762	pHlp->pfnSSMPutMem(pSSM, pThis->dac_cache, 3);
2763	pHlp->pfnSSMPutMem(pSSM, pThis->palette, 768);
2764
2765	pHlp->pfnSSMPutU32(pSSM, pThis->bank_offset);
2766	#ifdef CONFIG_BOCHS_VBE
2767	AssertCompile(RT_ELEMENTS(pThis->vbe_regs) < 256);
2768	pHlp->pfnSSMPutU8(pSSM, (uint8_t)RT_ELEMENTS(pThis->vbe_regs));
2769	pHlp->pfnSSMPutU16(pSSM, pThis->vbe_index);
2770	for(i = 0; i < (int)RT_ELEMENTS(pThis->vbe_regs); i++)
2771	pHlp->pfnSSMPutU16(pSSM, pThis->vbe_regs[i]);
2772	pHlp->pfnSSMPutU32(pSSM, pThis->vbe_start_addr);
2773	pHlp->pfnSSMPutU32(pSSM, pThis->vbe_line_offset);
2774	#else
2775	pHlp->pfnSSMPutU8(pSSM, 0);
2776	#endif
2777	}
2778
2779
2780	/**
2781	* Worker for vgaR3LoadExec().
2782	*/
2783	static int vga_load(PCPDMDEVHLPR3 pHlp, PSSMHANDLE pSSM, PVGASTATE pThis, int version_id)
2784	{
2785	int is_vbe, i;
2786	uint32_t u32Dummy;
2787	uint8_t u8;
2788
2789	pHlp->pfnSSMGetU32(pSSM, &pThis->latch);
2790	pHlp->pfnSSMGetU8(pSSM, &pThis->sr_index);
2791	pHlp->pfnSSMGetMem(pSSM, pThis->sr, 8);
2792	pHlp->pfnSSMGetU8(pSSM, &pThis->gr_index);
2793	pHlp->pfnSSMGetMem(pSSM, pThis->gr, 16);
2794	pHlp->pfnSSMGetU8(pSSM, &pThis->ar_index);
2795	pHlp->pfnSSMGetMem(pSSM, pThis->ar, 21);
2796	pHlp->pfnSSMGetS32(pSSM, &pThis->ar_flip_flop);
2797	pHlp->pfnSSMGetU8(pSSM, &pThis->cr_index);
2798	pHlp->pfnSSMGetMem(pSSM, pThis->cr, 256);
2799	pHlp->pfnSSMGetU8(pSSM, &pThis->msr);
2800	pHlp->pfnSSMGetU8(pSSM, &pThis->fcr);
2801	pHlp->pfnSSMGetU8(pSSM, &pThis->st00);
2802	pHlp->pfnSSMGetU8(pSSM, &pThis->st01);
2803
2804	pHlp->pfnSSMGetU8(pSSM, &pThis->dac_state);
2805	pHlp->pfnSSMGetU8(pSSM, &pThis->dac_sub_index);
2806	pHlp->pfnSSMGetU8(pSSM, &pThis->dac_read_index);
2807	pHlp->pfnSSMGetU8(pSSM, &pThis->dac_write_index);
2808	pHlp->pfnSSMGetMem(pSSM, pThis->dac_cache, 3);
2809	pHlp->pfnSSMGetMem(pSSM, pThis->palette, 768);
2810
2811	pHlp->pfnSSMGetS32(pSSM, &pThis->bank_offset);
2812	pHlp->pfnSSMGetU8(pSSM, &u8);
2813	is_vbe = !!u8;
2814	#ifdef CONFIG_BOCHS_VBE
2815	if (!is_vbe)
2816	{
2817	Log(("vga_load: !is_vbe !!\n"));
2818	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2819	}
2820
2821	if (u8 == 1)
2822	u8 = VBE_DISPI_INDEX_NB_SAVED; /* Used to save so many registers. */
2823	if (u8 > RT_ELEMENTS(pThis->vbe_regs))
2824	{
2825	Log(("vga_load: saved %d, expected %d!!\n", u8, RT_ELEMENTS(pThis->vbe_regs)));
2826	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2827	}
2828
2829	pHlp->pfnSSMGetU16(pSSM, &pThis->vbe_index);
2830	for(i = 0; i < (int)u8; i++)
2831	pHlp->pfnSSMGetU16(pSSM, &pThis->vbe_regs[i]);
2832	if (version_id <= VGA_SAVEDSTATE_VERSION_INV_VHEIGHT)
2833	recalculate_data(pThis); /* <- re-calculate the pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] since it might be invalid */
2834	pHlp->pfnSSMGetU32(pSSM, &pThis->vbe_start_addr);
2835	pHlp->pfnSSMGetU32(pSSM, &pThis->vbe_line_offset);
2836	if (version_id < 2)
2837	pHlp->pfnSSMGetU32(pSSM, &u32Dummy);
2838	pThis->vbe_bank_max = (pThis->vram_size >> 16) - 1;
2839	#else
2840	if (is_vbe)
2841	{
2842	Log(("vga_load: is_vbe !!\n"));
2843	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2844	}
2845	#endif
2846
2847	/* force refresh */
2848	pThis->graphic_mode = -1;
2849	return 0;
2850	}
2851
2852
2853	/**
2854	* Worker for vgaR3Construct().
2855	*/
2856	static void vgaR3InitExpand(void)
2857	{
2858	int i, j, v, b;
2859
2860	for(i = 0;i < 256; i++) {
2861	v = 0;
2862	for(j = 0; j < 8; j++) {
2863	v \|= ((i >> j) & 1) << (j * 4);
2864	}
2865	expand4[i] = v;
2866
2867	v = 0;
2868	for(j = 0; j < 4; j++) {
2869	v \|= ((i >> (2 * j)) & 3) << (j * 4);
2870	}
2871	expand2[i] = v;
2872	}
2873	for(i = 0; i < 16; i++) {
2874	v = 0;
2875	for(j = 0; j < 4; j++) {
2876	b = ((i >> j) & 1);
2877	v \|= b << (2 * j);
2878	v \|= b << (2 * j + 1);
2879	}
2880	expand4to8[i] = v;
2881	}
2882	}
2883
2884	#endif /* IN_RING3 */
2885
2886
2887
2888	/* -=-=-=-=-=- all contexts -=-=-=-=-=- */
2889
2890	#define VGA_IOPORT_WRITE_PLACEHOLDER(a_uPort, a_cPorts) do {\
2891	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE); \
2892	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo))); \
2893	AssertCompile(RT_IS_POWER_OF_TWO(a_cPorts)); \
2894	Assert((unsigned)offPort - (unsigned)(a_uPort) < (unsigned)(a_cPorts)); \
2895	NOREF(pvUser); \
2896	if (cb == 1) \
2897	vga_ioport_write(pDevIns, pThis, offPort, u32); \
2898	else if (cb == 2) \
2899	{ \
2900	vga_ioport_write(pDevIns, pThis, offPort, u32 & 0xff); \
2901	vga_ioport_write(pDevIns, pThis, offPort + 1, u32 >> 8); \
2902	} \
2903	return VINF_SUCCESS; \
2904	} while (0)
2905
2906	#define VGA_IOPORT_READ_PLACEHOLDER(a_uPort, a_cPorts) do {\
2907	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE); \
2908	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo))); \
2909	AssertCompile(RT_IS_POWER_OF_TWO(a_cPorts)); \
2910	Assert((unsigned)offPort - (unsigned)(a_uPort) < (unsigned)(a_cPorts)); \
2911	NOREF(pvUser); \
2912	if (cb == 1) \
2913	*pu32 = vga_ioport_read(pDevIns, pThis, offPort); \
2914	else if (cb == 2) \
2915	{ \
2916	uint32_t u32 = vga_ioport_read(pDevIns, pThis, offPort); \
2917	u32 \|= vga_ioport_read(pDevIns, pThis, offPort + 1) << 8; \
2918	*pu32 = u32; \
2919	} \
2920	else \
2921	return VERR_IOM_IOPORT_UNUSED; \
2922	return VINF_SUCCESS; \
2923	} while (0)
2924
2925	/**
2926	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3c0-0x3c1 Attribute Controller.}
2927	*/
2928	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortArWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
2929	{
2930	VGA_IOPORT_WRITE_PLACEHOLDER(0x3c0, 2);
2931	}
2932
2933	/**
2934	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3c0-0x3c1 Attribute Controller.}
2935	*/
2936	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortArRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
2937	{
2938	VGA_IOPORT_READ_PLACEHOLDER(0x3c0, 2);
2939	}
2940
2941
2942	/**
2943	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3c2 Miscellaneous Register.}
2944	*/
2945	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortMsrWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
2946	{
2947	VGA_IOPORT_WRITE_PLACEHOLDER(0x3c2, 1);
2948	}
2949
2950	/**
2951	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3c2 Status register 0.}
2952	*/
2953	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortSt00Read(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
2954	{
2955	VGA_IOPORT_READ_PLACEHOLDER(0x3c2, 1);
2956	}
2957
2958
2959	/**
2960	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3c3 Unused.}
2961	*/
2962	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortUnusedWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
2963	{
2964	VGA_IOPORT_WRITE_PLACEHOLDER(0x3c3, 1);
2965	}
2966
2967	/**
2968	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3c3 Unused.}
2969	*/
2970	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortUnusedRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
2971	{
2972	VGA_IOPORT_READ_PLACEHOLDER(0x3c3, 1);
2973	}
2974
2975
2976	/**
2977	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3c4-0x3c5 Sequencer.}
2978	*/
2979	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortSrWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
2980	{
2981	VGA_IOPORT_WRITE_PLACEHOLDER(0x3c4, 2);
2982	}
2983
2984	/**
2985	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3c4-0x3c5 Sequencer.}
2986	*/
2987	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortSrRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
2988	{
2989	VGA_IOPORT_READ_PLACEHOLDER(0x3c4, 2);
2990	}
2991
2992
2993	/**
2994	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3c6-0x3c9 DAC.}
2995	*/
2996	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortDacWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
2997	{
2998	VGA_IOPORT_WRITE_PLACEHOLDER(0x3c6, 4);
2999	}
3000
3001	/**
3002	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3c6-0x3c9 DAC.}
3003	*/
3004	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortDacRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3005	{
3006	VGA_IOPORT_READ_PLACEHOLDER(0x3c6, 4);
3007	}
3008
3009
3010	/**
3011	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3ca-0x3cd Graphics Position?}
3012	*/
3013	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortPosWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3014	{
3015	VGA_IOPORT_WRITE_PLACEHOLDER(0x3ca, 4);
3016	}
3017
3018	/**
3019	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3ca-0x3cd Graphics Position?}
3020	*/
3021	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortPosRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3022	{
3023	VGA_IOPORT_READ_PLACEHOLDER(0x3ca, 4);
3024	}
3025
3026
3027	/**
3028	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3ce-0x3cf Graphics Controller.}
3029	*/
3030	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortGrWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3031	{
3032	VGA_IOPORT_WRITE_PLACEHOLDER(0x3ce, 2);
3033	}
3034
3035	/**
3036	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3ca-0x3cf Graphics Controller.}
3037	*/
3038	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortGrRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3039	{
3040	VGA_IOPORT_READ_PLACEHOLDER(0x3ce, 2);
3041	}
3042
3043
3044	/**
3045	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3b4-0x3b5 MDA CRT control.}
3046	*/
3047	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortMdaCrtWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3048	{
3049	/** @todo do vga_ioport_invalid here */
3050	VGA_IOPORT_WRITE_PLACEHOLDER(0x3b4, 2);
3051	}
3052
3053	/**
3054	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3b4-0x3b5 MDA CRT control.}
3055	*/
3056	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortMdaCrtRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3057	{
3058	/** @todo do vga_ioport_invalid here */
3059	VGA_IOPORT_READ_PLACEHOLDER(0x3b4, 2);
3060	}
3061
3062
3063	/**
3064	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3ba MDA feature/status.}
3065	*/
3066	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortMdaFcrWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3067	{
3068	/** @todo do vga_ioport_invalid here */
3069	VGA_IOPORT_WRITE_PLACEHOLDER(0x3ba, 1);
3070	}
3071
3072	/**
3073	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3ba MDA feature/status.}
3074	*/
3075	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortMdaStRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3076	{
3077	/** @todo do vga_ioport_invalid here */
3078	VGA_IOPORT_READ_PLACEHOLDER(0x3ba, 1);
3079	}
3080
3081
3082	/**
3083	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3d4-0x3d5 CGA CRT control.}
3084	*/
3085	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortCgaCrtWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3086	{
3087	/** @todo do vga_ioport_invalid here */
3088	VGA_IOPORT_WRITE_PLACEHOLDER(0x3d4, 2);
3089	}
3090
3091	/**
3092	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3d4-0x3d5 CGA CRT control.}
3093	*/
3094	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortCgaCrtRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3095	{
3096	/** @todo do vga_ioport_invalid here */
3097	VGA_IOPORT_READ_PLACEHOLDER(0x3d4, 2);
3098	}
3099
3100
3101	/**
3102	* @callback_method_impl{FNIOMIOPORTNEWOUT,0x3da CGA feature/status.}
3103	*/
3104	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortCgaFcrWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3105	{
3106	/** @todo do vga_ioport_invalid here */
3107	VGA_IOPORT_WRITE_PLACEHOLDER(0x3da, 1);
3108	}
3109
3110	/**
3111	* @callback_method_impl{FNIOMIOPORTNEWIN,0x3da CGA feature/status.}
3112	*/
3113	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortCgaStRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3114	{
3115	/** @todo do vga_ioport_invalid here */
3116	VGA_IOPORT_READ_PLACEHOLDER(0x3da, 1);
3117	}
3118
3119
3120	/**
3121	* @callback_method_impl{FNIOMIOPORTNEWOUT,VBE Data Port OUT handler (0x1ce).}
3122	*/
3123	static DECLCALLBACK(VBOXSTRICTRC)
3124	vgaIoPortWriteVbeData(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3125	{
3126	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3127	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3128	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3129
3130	NOREF(pvUser);
3131
3132	#ifndef IN_RING3
3133	/*
3134	* This has to be done on the host in order to execute the connector callbacks.
3135	*/
3136	if ( pThis->vbe_index == VBE_DISPI_INDEX_ENABLE
3137	\|\| pThis->vbe_index == VBE_DISPI_INDEX_VBOX_VIDEO)
3138	{
3139	Log(("vgaIoPortWriteVbeData: VBE_DISPI_INDEX_ENABLE - Switching to host...\n"));
3140	return VINF_IOM_R3_IOPORT_WRITE;
3141	}
3142	#endif
3143	#ifdef VBE_BYTEWISE_IO
3144	if (cb == 1)
3145	{
3146	if (!pThis->fWriteVBEData)
3147	{
3148	if ( (pThis->vbe_index == VBE_DISPI_INDEX_ENABLE)
3149	&& (u32 & VBE_DISPI_ENABLED))
3150	{
3151	pThis->fWriteVBEData = false;
3152	return vbe_ioport_write_data(pDevIns, pThis, pThisCC, offPort, u32 & 0xFF);
3153	}
3154
3155	pThis->cbWriteVBEData = u32 & 0xFF;
3156	pThis->fWriteVBEData = true;
3157	return VINF_SUCCESS;
3158	}
3159
3160	u32 = (pThis->cbWriteVBEData << 8) \| (u32 & 0xFF);
3161	pThis->fWriteVBEData = false;
3162	cb = 2;
3163	}
3164	#endif
3165	if (cb == 2 \|\| cb == 4)
3166	return vbe_ioport_write_data(pDevIns, pThis, pThisCC, offPort, u32);
3167	AssertMsgFailed(("vgaIoPortWriteVbeData: offPort=%#x cb=%d u32=%#x\n", offPort, cb, u32));
3168
3169	return VINF_SUCCESS;
3170	}
3171
3172
3173	/**
3174	* @callback_method_impl{FNIOMIOPORTNEWOUT,VBE Index Port OUT handler (0x1ce).}
3175	*/
3176	static DECLCALLBACK(VBOXSTRICTRC)
3177	vgaIoPortWriteVbeIndex(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3178	{
3179	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE); NOREF(pvUser);
3180	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3181
3182	#ifdef VBE_BYTEWISE_IO
3183	if (cb == 1)
3184	{
3185	if (!pThis->fWriteVBEIndex)
3186	{
3187	pThis->cbWriteVBEIndex = u32 & 0x00FF;
3188	pThis->fWriteVBEIndex = true;
3189	return VINF_SUCCESS;
3190	}
3191	pThis->fWriteVBEIndex = false;
3192	vbe_ioport_write_index(pThis, offPort, (pThis->cbWriteVBEIndex << 8) \| (u32 & 0x00FF));
3193	return VINF_SUCCESS;
3194	}
3195	#endif
3196
3197	if (cb == 2)
3198	vbe_ioport_write_index(pThis, offPort, u32);
3199	else
3200	ASSERT_GUEST_MSG_FAILED(("vgaIoPortWriteVbeIndex: offPort=%#x cb=%d u32=%#x\n", offPort, cb, u32));
3201	return VINF_SUCCESS;
3202	}
3203
3204
3205	/**
3206	* @callback_method_impl{FNIOMIOPORTNEWOUT,VBE Data Port IN handler (0x1cf).}
3207	*/
3208	static DECLCALLBACK(VBOXSTRICTRC)
3209	vgaIoPortReadVbeData(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3210	{
3211	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE); NOREF(pvUser);
3212	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3213
3214	#ifdef VBE_BYTEWISE_IO
3215	if (cb == 1)
3216	{
3217	if (!pThis->fReadVBEData)
3218	{
3219	*pu32 = (vbe_ioport_read_data(pThis, offPort) >> 8) & 0xFF;
3220	pThis->fReadVBEData = true;
3221	return VINF_SUCCESS;
3222	}
3223	*pu32 = vbe_ioport_read_data(pThis, offPort) & 0xFF;
3224	pThis->fReadVBEData = false;
3225	return VINF_SUCCESS;
3226	}
3227	#endif
3228	if (cb == 2)
3229	{
3230	*pu32 = vbe_ioport_read_data(pThis, offPort);
3231	return VINF_SUCCESS;
3232	}
3233	if (cb == 4)
3234	{
3235	if (pThis->vbe_regs[VBE_DISPI_INDEX_ID] == VBE_DISPI_ID_CFG)
3236	pu32 = vbe_ioport_read_data(pThis, offPort); / New interface. */
3237	else
3238	pu32 = pThis->vram_size; / Quick hack for getting the vram size. */
3239	return VINF_SUCCESS;
3240	}
3241	AssertMsgFailed(("vgaIoPortReadVbeData: offPort=%#x cb=%d\n", offPort, cb));
3242	return VERR_IOM_IOPORT_UNUSED;
3243	}
3244
3245
3246	/**
3247	* @callback_method_impl{FNIOMIOPORTNEWOUT,VBE Index Port IN handler (0x1cf).}
3248	*/
3249	static DECLCALLBACK(VBOXSTRICTRC)
3250	vgaIoPortReadVbeIndex(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3251	{
3252	NOREF(pvUser);
3253	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3254	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3255
3256	#ifdef VBE_BYTEWISE_IO
3257	if (cb == 1)
3258	{
3259	if (!pThis->fReadVBEIndex)
3260	{
3261	*pu32 = (vbe_ioport_read_index(pThis, offPort) >> 8) & 0xFF;
3262	pThis->fReadVBEIndex = true;
3263	return VINF_SUCCESS;
3264	}
3265	*pu32 = vbe_ioport_read_index(pThis, offPort) & 0xFF;
3266	pThis->fReadVBEIndex = false;
3267	return VINF_SUCCESS;
3268	}
3269	#endif
3270	if (cb == 2)
3271	{
3272	*pu32 = vbe_ioport_read_index(pThis, offPort);
3273	return VINF_SUCCESS;
3274	}
3275	AssertMsgFailed(("vgaIoPortReadVbeIndex: offPort=%#x cb=%d\n", offPort, cb));
3276	return VERR_IOM_IOPORT_UNUSED;
3277	}
3278
3279	#if defined(VBOX_WITH_HGSMI) && defined(IN_RING3)
3280
3281	/**
3282	* @callback_method_impl{FNIOMIOPORTNEWOUT,HGSMI OUT handler.}
3283	*/
3284	static DECLCALLBACK(VBOXSTRICTRC)
3285	vgaR3IOPortHgsmiWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3286	{
3287	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3288	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3289	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3290	LogFlowFunc(("offPort=0x%x u32=0x%x cb=%u\n", offPort, u32, cb));
3291
3292	NOREF(pvUser);
3293
3294	if (cb == 4)
3295	{
3296	switch (offPort)
3297	{
3298	case VGA_PORT_HGSMI_HOST: /* Host */
3299	{
3300	# if defined(VBOX_WITH_VIDEOHWACCEL) \|\| defined(VBOX_WITH_VDMA) \|\| defined(VBOX_WITH_WDDM)
3301	if (u32 == HGSMIOFFSET_VOID)
3302	{
3303	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSectIRQ, VERR_SEM_BUSY);
3304	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSectIRQ, rcLock);
3305
3306	if (pThis->fu32PendingGuestFlags == 0)
3307	{
3308	PDMDevHlpPCISetIrqNoWait(pDevIns, 0, PDM_IRQ_LEVEL_LOW);
3309	HGSMIClearHostGuestFlags(pThisCC->pHGSMI,
3310	HGSMIHOSTFLAGS_IRQ
3311	\| HGSMIHOSTFLAGS_VSYNC
3312	\| HGSMIHOSTFLAGS_HOTPLUG
3313	\| HGSMIHOSTFLAGS_CURSOR_CAPABILITIES);
3314	}
3315	else
3316	{
3317	HGSMISetHostGuestFlags(pThisCC->pHGSMI, HGSMIHOSTFLAGS_IRQ \| pThis->fu32PendingGuestFlags);
3318	pThis->fu32PendingGuestFlags = 0;
3319	/* Keep the IRQ unchanged. */
3320	}
3321
3322	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSectIRQ);
3323	}
3324	else
3325	# endif
3326	{
3327	HGSMIHostWrite(pThisCC->pHGSMI, u32);
3328	}
3329	break;
3330	}
3331
3332	case VGA_PORT_HGSMI_GUEST: /* Guest */
3333	HGSMIGuestWrite(pThisCC->pHGSMI, u32);
3334	break;
3335
3336	default:
3337	# ifdef DEBUG_sunlover
3338	AssertMsgFailed(("vgaR3IOPortHgsmiWrite: offPort=%#x cb=%d u32=%#x\n", offPort, cb, u32));
3339	# endif
3340	break;
3341	}
3342	}
3343	else
3344	{
3345	/** @todo r=bird: According to Ralf Brown, one and two byte accesses to the
3346	* 0x3b0-0x3b1 and 0x3b2-0x3b3 I/O port pairs should work the same as
3347	* 0x3b4-0x3b5 (MDA CRT control). */
3348	Log(("vgaR3IOPortHgsmiWrite: offPort=%#x cb=%d u32=%#x - possible valid MDA CRT access\n", offPort, cb, u32));
3349	# ifdef DEBUG_sunlover
3350	AssertMsgFailed(("vgaR3IOPortHgsmiWrite: offPort=%#x cb=%d u32=%#x\n", offPort, cb, u32));
3351	# endif
3352	STAM_REL_COUNTER_INC(&pThis->StatHgsmiMdaCgaAccesses);
3353	}
3354
3355	return VINF_SUCCESS;
3356	}
3357
3358
3359	/**
3360	* @callback_method_impl{FNIOMIOPORTNEWOUT,HGSMI IN handler.}
3361	*/
3362	static DECLCALLBACK(VBOXSTRICTRC)
3363	vgaR3IOPortHgmsiRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3364	{
3365	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3366	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3367	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3368	LogFlowFunc(("offPort=0x%x cb=%d\n", offPort, cb));
3369
3370	NOREF(pvUser);
3371
3372	VBOXSTRICTRC rc = VINF_SUCCESS;
3373	if (cb == 4)
3374	{
3375	switch (offPort)
3376	{
3377	case VGA_PORT_HGSMI_HOST: /* Host */
3378	*pu32 = HGSMIHostRead(pThisCC->pHGSMI);
3379	break;
3380	case VGA_PORT_HGSMI_GUEST: /* Guest */
3381	*pu32 = HGSMIGuestRead(pThisCC->pHGSMI);
3382	break;
3383	default:
3384	rc = VERR_IOM_IOPORT_UNUSED;
3385	break;
3386	}
3387	}
3388	else
3389	{
3390	/** @todo r=bird: According to Ralf Brown, one and two byte accesses to the
3391	* 0x3b0-0x3b1 and 0x3b2-0x3b3 I/O port pairs should work the same as
3392	* 0x3b4-0x3b5 (MDA CRT control). */
3393	Log(("vgaR3IOPortHgmsiRead: offPort=%#x cb=%d - possible valid MDA CRT access\n", offPort, cb));
3394	STAM_REL_COUNTER_INC(&pThis->StatHgsmiMdaCgaAccesses);
3395	rc = VERR_IOM_IOPORT_UNUSED;
3396	}
3397
3398	return rc;
3399	}
3400
3401	#endif /* VBOX_WITH_HGSMI && IN_RING3*/
3402
3403
3404
3405
3406	/* -=-=-=-=-=- All Contexts -=-=-=-=-=- */
3407
3408	/**
3409	* @internal. For use inside VGAGCMemoryFillWrite only.
3410	* Macro for apply logical operation and bit mask.
3411	*/
3412	#define APPLY_LOGICAL_AND_MASK(pThis, val, bit_mask) \
3413	/* apply logical operation */ \
3414	switch (pThis->gr[3] >> 3)\
3415	{ \
3416	case 0: \
3417	default:\
3418	/* nothing to do */ \
3419	break; \
3420	case 1: \
3421	/* and */ \
3422	val &= pThis->latch; \
3423	break; \
3424	case 2: \
3425	/* or */ \
3426	val \|= pThis->latch; \
3427	break; \
3428	case 3: \
3429	/* xor */ \
3430	val ^= pThis->latch; \
3431	break; \
3432	} \
3433	/* apply bit mask */ \
3434	val = (val & bit_mask) \| (pThis->latch & ~bit_mask)
3435
3436	/**
3437	* Legacy VGA memory (0xa0000 - 0xbffff) write hook, to be called from IOM and from the inside of VGADeviceGC.cpp.
3438	* This is the advanced version of vga_mem_writeb function.
3439	*
3440	* @returns VBox status code.
3441	* @param pThis The shared VGA instance data.
3442	* @param pThisCC The VGA instance data for the current context.
3443	* @param pvUser User argument - ignored.
3444	* @param GCPhysAddr Physical address of memory to write.
3445	* @param u32Item Data to write, up to 4 bytes.
3446	* @param cbItem Size of data Item, only 1/2/4 bytes is allowed for now.
3447	* @param cItems Number of data items to write.
3448	*/
3449	static int vgaInternalMMIOFill(PVGASTATE pThis, PVGASTATECC pThisCC, void *pvUser, RTGCPHYS GCPhysAddr,
3450	uint32_t u32Item, unsigned cbItem, unsigned cItems)
3451	{
3452	uint32_t b;
3453	uint32_t write_mask, bit_mask, set_mask;
3454	uint32_t aVal[4];
3455	unsigned i;
3456	NOREF(pvUser);
3457
3458	for (i = 0; i < cbItem; i++)
3459	{
3460	aVal[i] = u32Item & 0xff;
3461	u32Item >>= 8;
3462	}
3463
3464	/* convert to VGA memory offset */
3465	/// @todo add check for the end of region
3466	GCPhysAddr &= 0x1ffff;
3467	switch((pThis->gr[6] >> 2) & 3) {
3468	case 0:
3469	break;
3470	case 1:
3471	if (GCPhysAddr >= 0x10000)
3472	return VINF_SUCCESS;
3473	GCPhysAddr += pThis->bank_offset;
3474	break;
3475	case 2:
3476	GCPhysAddr -= 0x10000;
3477	if (GCPhysAddr >= 0x8000)
3478	return VINF_SUCCESS;
3479	break;
3480	default:
3481	case 3:
3482	GCPhysAddr -= 0x18000;
3483	if (GCPhysAddr >= 0x8000)
3484	return VINF_SUCCESS;
3485	break;
3486	}
3487
3488	if (pThis->sr[4] & 0x08) {
3489	/* chain 4 mode : simplest access */
3490	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, GCPhysAddr + cItems * cbItem - 1);
3491
3492	while (cItems-- > 0)
3493	for (i = 0; i < cbItem; i++)
3494	{
3495	if (pThis->sr[2] & (1 << (GCPhysAddr & 3)))
3496	{
3497	pThisCC->pbVRam[GCPhysAddr] = aVal[i];
3498	vgaR3MarkDirty(pThis, GCPhysAddr);
3499	}
3500	GCPhysAddr++;
3501	}
3502	} else if (pThis->gr[5] & 0x10) {
3503	/* odd/even mode (aka text mode mapping) */
3504	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, (GCPhysAddr + cItems * cbItem) * 4 - 1);
3505	while (cItems-- > 0)
3506	for (i = 0; i < cbItem; i++)
3507	{
3508	unsigned plane = (pThis->gr[4] & 2) \| (GCPhysAddr & 1);
3509	if (pThis->sr[2] & (1 << plane)) {
3510	RTGCPHYS PhysAddr2 = ((GCPhysAddr & ~1) * 4) \| plane;
3511	pThisCC->pbVRam[PhysAddr2] = aVal[i];
3512	vgaR3MarkDirty(pThis, PhysAddr2);
3513	}
3514	GCPhysAddr++;
3515	}
3516	} else {
3517	/* standard VGA latched access */
3518	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, (GCPhysAddr + cItems * cbItem) * 4 - 1);
3519
3520	switch(pThis->gr[5] & 3) {
3521	default:
3522	case 0:
3523	/* rotate */
3524	b = pThis->gr[3] & 7;
3525	bit_mask = pThis->gr[8];
3526	bit_mask \|= bit_mask << 8;
3527	bit_mask \|= bit_mask << 16;
3528	set_mask = mask16[pThis->gr[1]];
3529
3530	for (i = 0; i < cbItem; i++)
3531	{
3532	aVal[i] = ((aVal[i] >> b) \| (aVal[i] << (8 - b))) & 0xff;
3533	aVal[i] \|= aVal[i] << 8;
3534	aVal[i] \|= aVal[i] << 16;
3535
3536	/* apply set/reset mask */
3537	aVal[i] = (aVal[i] & ~set_mask) \| (mask16[pThis->gr[0]] & set_mask);
3538
3539	APPLY_LOGICAL_AND_MASK(pThis, aVal[i], bit_mask);
3540	}
3541	break;
3542	case 1:
3543	for (i = 0; i < cbItem; i++)
3544	aVal[i] = pThis->latch;
3545	break;
3546	case 2:
3547	bit_mask = pThis->gr[8];
3548	bit_mask \|= bit_mask << 8;
3549	bit_mask \|= bit_mask << 16;
3550	for (i = 0; i < cbItem; i++)
3551	{
3552	aVal[i] = mask16[aVal[i] & 0x0f];
3553
3554	APPLY_LOGICAL_AND_MASK(pThis, aVal[i], bit_mask);
3555	}
3556	break;
3557	case 3:
3558	/* rotate */
3559	b = pThis->gr[3] & 7;
3560
3561	for (i = 0; i < cbItem; i++)
3562	{
3563	aVal[i] = (aVal[i] >> b) \| (aVal[i] << (8 - b));
3564	bit_mask = pThis->gr[8] & aVal[i];
3565	bit_mask \|= bit_mask << 8;
3566	bit_mask \|= bit_mask << 16;
3567	aVal[i] = mask16[pThis->gr[0]];
3568
3569	APPLY_LOGICAL_AND_MASK(pThis, aVal[i], bit_mask);
3570	}
3571	break;
3572	}
3573
3574	/* mask data according to sr[2] */
3575	write_mask = mask16[pThis->sr[2]];
3576
3577	/* actually write data */
3578	if (cbItem == 1)
3579	{
3580	/* The most frequently case is 1 byte I/O. */
3581	while (cItems-- > 0)
3582	{
3583	((uint32_t )pThisCC->pbVRam)[GCPhysAddr] = (((uint32_t )pThisCC->pbVRam)[GCPhysAddr] & ~write_mask) \| (aVal[0] & write_mask);
3584	vgaR3MarkDirty(pThis, GCPhysAddr * 4);
3585	GCPhysAddr++;
3586	}
3587	}
3588	else if (cbItem == 2)
3589	{
3590	/* The second case is 2 bytes I/O. */
3591	while (cItems-- > 0)
3592	{
3593	((uint32_t )pThisCC->pbVRam)[GCPhysAddr] = (((uint32_t )pThisCC->pbVRam)[GCPhysAddr] & ~write_mask) \| (aVal[0] & write_mask);
3594	vgaR3MarkDirty(pThis, GCPhysAddr * 4);
3595	GCPhysAddr++;
3596
3597	((uint32_t )pThisCC->pbVRam)[GCPhysAddr] = (((uint32_t )pThisCC->pbVRam)[GCPhysAddr] & ~write_mask) \| (aVal[1] & write_mask);
3598	vgaR3MarkDirty(pThis, GCPhysAddr * 4);
3599	GCPhysAddr++;
3600	}
3601	}
3602	else
3603	{
3604	/* And the rest is 4 bytes. */
3605	Assert(cbItem == 4);
3606	while (cItems-- > 0)
3607	for (i = 0; i < cbItem; i++)
3608	{
3609	((uint32_t )pThisCC->pbVRam)[GCPhysAddr] = (((uint32_t )pThisCC->pbVRam)[GCPhysAddr] & ~write_mask) \| (aVal[i] & write_mask);
3610	vgaR3MarkDirty(pThis, GCPhysAddr * 4);
3611	GCPhysAddr++;
3612	}
3613	}
3614	}
3615	return VINF_SUCCESS;
3616	}
3617
3618	#undef APPLY_LOGICAL_AND_MASK
3619
3620	/**
3621	* @callback_method_impl{FNIOMMMIONEWFILL,
3622	* Legacy VGA memory (0xa0000 - 0xbffff) write hook\, to be called from IOM and
3623	* from the inside of VGADeviceGC.cpp. This is the advanced version of
3624	* vga_mem_writeb function.}
3625	*/
3626	static DECLCALLBACK(VBOXSTRICTRC)
3627	vgaMmioFill(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS off, uint32_t u32Item, unsigned cbItem, unsigned cItems)
3628	{
3629	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3630	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3631	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3632
3633	return vgaInternalMMIOFill(pThis, pThisCC, pvUser, off, u32Item, cbItem, cItems);
3634	}
3635
3636
3637	/**
3638	* @callback_method_impl{FNIOMMMIONEWREAD,
3639	* Legacy VGA memory (0xa0000 - 0xbffff) read hook\, to be called from IOM.}
3640	*/
3641	static DECLCALLBACK(VBOXSTRICTRC) vgaMmioRead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS off, void pv, unsigned cb)
3642	{
3643	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3644	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3645	STAM_PROFILE_START(&pThis->CTX_MID_Z(Stat,MemoryRead), a);
3646	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3647	NOREF(pvUser);
3648
3649	int rc = VINF_SUCCESS;
3650	switch (cb)
3651	{
3652	case 1:
3653	(uint8_t )pv = vga_mem_readb(pDevIns, pThis, pThisCC, off, &rc);
3654	break;
3655	case 2:
3656	/** @todo This and the wider accesses maybe misbehave when accessing bytes
3657	* crossing the 512KB VRAM boundrary if the access is handled in
3658	* ring-0 and operating in latched mode. */
3659	(uint16_t )pv = vga_mem_readb(pDevIns, pThis, pThisCC, off, &rc)
3660	\| (vga_mem_readb(pDevIns, pThis, pThisCC, off + 1, &rc) << 8);
3661	break;
3662	case 4:
3663	(uint32_t )pv = vga_mem_readb(pDevIns, pThis, pThisCC, off, &rc)
3664	\| (vga_mem_readb(pDevIns, pThis, pThisCC, off + 1, &rc) << 8)
3665	\| (vga_mem_readb(pDevIns, pThis, pThisCC, off + 2, &rc) << 16)
3666	\| (vga_mem_readb(pDevIns, pThis, pThisCC, off + 3, &rc) << 24);
3667	break;
3668
3669	case 8:
3670	(uint64_t )pv = (uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off, &rc)
3671	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 1, &rc) << 8)
3672	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 2, &rc) << 16)
3673	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 3, &rc) << 24)
3674	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 4, &rc) << 32)
3675	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 5, &rc) << 40)
3676	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 6, &rc) << 48)
3677	\| ((uint64_t)vga_mem_readb(pDevIns, pThis, pThisCC, off + 7, &rc) << 56);
3678	break;
3679
3680	default:
3681	{
3682	uint8_t pbData = (uint8_t )pv;
3683	while (cb-- > 0)
3684	{
3685	*pbData++ = vga_mem_readb(pDevIns, pThis, pThisCC, off++, &rc);
3686	if (RT_UNLIKELY(rc != VINF_SUCCESS))
3687	break;
3688	}
3689	}
3690	}
3691
3692	STAM_PROFILE_STOP(&pThis->CTX_MID_Z(Stat,MemoryRead), a);
3693	return rc;
3694	}
3695
3696	/**
3697	* @callback_method_impl{FNIOMMMIONEWWRITE,
3698	* Legacy VGA memory (0xa0000 - 0xbffff) write hook\, to be called from IOM.}
3699	*/
3700	static DECLCALLBACK(VBOXSTRICTRC) vgaMmioWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS off, void const pv, unsigned cb)
3701	{
3702	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3703	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3704	uint8_t const pbSrc = (uint8_t const )pv;
3705	NOREF(pvUser);
3706	STAM_PROFILE_START(&pThis->CTX_MID_Z(Stat,MemoryWrite), a);
3707	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3708
3709	VBOXSTRICTRC rc;
3710	switch (cb)
3711	{
3712	case 1:
3713	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off, *pbSrc);
3714	break;
3715	#if 1
3716	case 2:
3717	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 0, pbSrc[0]);
3718	if (RT_LIKELY(rc == VINF_SUCCESS))
3719	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 1, pbSrc[1]);
3720	break;
3721	case 4:
3722	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 0, pbSrc[0]);
3723	if (RT_LIKELY(rc == VINF_SUCCESS))
3724	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 1, pbSrc[1]);
3725	if (RT_LIKELY(rc == VINF_SUCCESS))
3726	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 2, pbSrc[2]);
3727	if (RT_LIKELY(rc == VINF_SUCCESS))
3728	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 3, pbSrc[3]);
3729	break;
3730	case 8:
3731	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 0, pbSrc[0]);
3732	if (RT_LIKELY(rc == VINF_SUCCESS))
3733	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 1, pbSrc[1]);
3734	if (RT_LIKELY(rc == VINF_SUCCESS))
3735	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 2, pbSrc[2]);
3736	if (RT_LIKELY(rc == VINF_SUCCESS))
3737	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 3, pbSrc[3]);
3738	if (RT_LIKELY(rc == VINF_SUCCESS))
3739	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 4, pbSrc[4]);
3740	if (RT_LIKELY(rc == VINF_SUCCESS))
3741	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 5, pbSrc[5]);
3742	if (RT_LIKELY(rc == VINF_SUCCESS))
3743	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 6, pbSrc[6]);
3744	if (RT_LIKELY(rc == VINF_SUCCESS))
3745	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off + 7, pbSrc[7]);
3746	break;
3747	#else
3748	case 2:
3749	rc = vgaMmioFill(pDevIns, off, (uint16_t )pv, 2, 1);
3750	break;
3751	case 4:
3752	rc = vgaMmioFill(pDevIns, off, (uint32_t )pv, 4, 1);
3753	break;
3754	case 8:
3755	rc = vgaMmioFill(pDevIns, off, (uint64_t )pv, 8, 1);
3756	break;
3757	#endif
3758	default:
3759	rc = VINF_SUCCESS;
3760	while (cb-- > 0 && rc == VINF_SUCCESS)
3761	rc = vga_mem_writeb(pDevIns, pThis, pThisCC, off++, *pbSrc++);
3762	break;
3763
3764	}
3765	STAM_PROFILE_STOP(&pThis->CTX_MID_Z(Stat,MemoryWrite), a);
3766	return rc;
3767	}
3768
3769
3770	/* -=-=-=-=-=- All rings: VGA BIOS I/Os -=-=-=-=-=- */
3771
3772	/**
3773	* @callback_method_impl{FNIOMIOPORTNEWIN,
3774	* Port I/O Handler for VGA BIOS IN operations.}
3775	*/
3776	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortReadBios(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3777	{
3778	RT_NOREF(pDevIns, pvUser, offPort, pu32, cb);
3779	return VERR_IOM_IOPORT_UNUSED;
3780	}
3781
3782	/**
3783	* @callback_method_impl{FNIOMIOPORTNEWOUT,
3784	* Port I/O Handler for VGA BIOS IN operations.}
3785	*/
3786	static DECLCALLBACK(VBOXSTRICTRC) vgaIoPortWriteBios(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3787	{
3788	RT_NOREF2(pDevIns, pvUser);
3789	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3790	Assert(offPort == 0); RT_NOREF(offPort);
3791
3792	/*
3793	* VGA BIOS char printing.
3794	*/
3795	if (cb == 1)
3796	{
3797	#if 0
3798	switch (u32)
3799	{
3800	case '\r': Log(("vgabios: <return>\n")); break;
3801	case '\n': Log(("vgabios: <newline>\n")); break;
3802	case '\t': Log(("vgabios: <tab>\n")); break;
3803	default:
3804	Log(("vgabios: %c\n", u32));
3805	}
3806	#else
3807	static int s_fLastWasNotNewline = 0; /* We are only called in a single-threaded way */
3808	if (s_fLastWasNotNewline == 0)
3809	Log(("vgabios: "));
3810	if (u32 != '\r') /* return - is only sent in conjunction with '\n' */
3811	Log(("%c", u32));
3812	if (u32 == '\n')
3813	s_fLastWasNotNewline = 0;
3814	else
3815	s_fLastWasNotNewline = 1;
3816	#endif
3817	return VINF_SUCCESS;
3818	}
3819
3820	/* not in use. */
3821	return VERR_IOM_IOPORT_UNUSED;
3822	}
3823
3824
3825	/* -=-=-=-=-=- Ring 3 -=-=-=-=-=- */
3826
3827	#ifdef IN_RING3
3828
3829	/**
3830	* @callback_method_impl{FNIOMIOPORTNEWOUT,
3831	* Port I/O Handler for VBE Extra OUT operations.}
3832	*/
3833	static DECLCALLBACK(VBOXSTRICTRC)
3834	vbeR3IOPortWriteVbeExtra(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
3835	{
3836	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3837	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3838	RT_NOREF(offPort, pvUser);
3839
3840	if (cb == 2)
3841	{
3842	Log(("vbeR3IOPortWriteVbeExtra: addr=%#RX32\n", u32));
3843	pThisCC->u16VBEExtraAddress = u32;
3844	}
3845	else
3846	Log(("vbeR3IOPortWriteVbeExtra: Ignoring invalid cb=%d writes to the VBE Extra port!!!\n", cb));
3847
3848	return VINF_SUCCESS;
3849	}
3850
3851
3852	/**
3853	* @callback_method_impl{FNIOMIOPORTNEWIN,
3854	* Port I/O Handler for VBE Extra IN operations.}
3855	*/
3856	static DECLCALLBACK(VBOXSTRICTRC)
3857	vbeR3IoPortReadVbeExtra(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
3858	{
3859	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
3860	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
3861	Assert(PDMDevHlpCritSectIsOwner(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)));
3862	RT_NOREF(offPort, pvUser);
3863
3864	int rc = VINF_SUCCESS;
3865	if (pThisCC->u16VBEExtraAddress == 0xffff)
3866	{
3867	Log(("vbeR3IoPortReadVbeExtra: Requested number of 64k video banks\n"));
3868	*pu32 = pThis->vram_size / _64K;
3869	}
3870	else if ( pThisCC->u16VBEExtraAddress >= pThisCC->cbVBEExtraData
3871	\|\| pThisCC->u16VBEExtraAddress + cb > pThisCC->cbVBEExtraData)
3872	{
3873	*pu32 = 0;
3874	Log(("vbeR3IoPortReadVbeExtra: Requested address is out of VBE data!!! Address=%#x(%d) cbVBEExtraData=%#x(%d)\n",
3875	pThisCC->u16VBEExtraAddress, pThisCC->u16VBEExtraAddress, pThisCC->cbVBEExtraData, pThisCC->cbVBEExtraData));
3876	}
3877	else
3878	{
3879	RT_UNTRUSTED_VALIDATED_FENCE();
3880	if (cb == 1)
3881	{
3882	*pu32 = pThisCC->pbVBEExtraData[pThisCC->u16VBEExtraAddress] & 0xFF;
3883
3884	Log(("vbeR3IoPortReadVbeExtra: cb=%#x %.*Rhxs\n", cb, cb, pu32));
3885	}
3886	else if (cb == 2)
3887	{
3888	*pu32 = pThisCC->pbVBEExtraData[pThisCC->u16VBEExtraAddress]
3889	\| (uint32_t)pThisCC->pbVBEExtraData[pThisCC->u16VBEExtraAddress + 1] << 8;
3890
3891	Log(("vbeR3IoPortReadVbeExtra: cb=%#x %.*Rhxs\n", cb, cb, pu32));
3892	}
3893	else
3894	{
3895	Log(("vbeR3IoPortReadVbeExtra: Invalid cb=%d read from the VBE Extra port!!!\n", cb));
3896	rc = VERR_IOM_IOPORT_UNUSED;
3897	}
3898	}
3899
3900	return rc;
3901	}
3902
3903
3904	/**
3905	* Parse the logo bitmap data at init time.
3906	*
3907	* @returns VBox status code.
3908	*
3909	* @param pThisCC The VGA instance data for ring-3.
3910	*/
3911	static int vbeR3ParseBitmap(PVGASTATECC pThisCC)
3912	{
3913	/*
3914	* Get bitmap header data
3915	*/
3916	PCLOGOHDR pLogoHdr = (PCLOGOHDR)pThisCC->pbLogo;
3917	PBMPFILEHDR pFileHdr = (PBMPFILEHDR)(pThisCC->pbLogo + sizeof(LOGOHDR));
3918	PBMPWIN3XINFOHDR pCoreHdr = (PBMPWIN3XINFOHDR)(pThisCC->pbLogo + sizeof(LOGOHDR) + sizeof(BMPFILEHDR));
3919
3920	if (pFileHdr->uType == BMP_HDR_MAGIC)
3921	{
3922	switch (pCoreHdr->cbSize)
3923	{
3924	case BMP_HDR_SIZE_OS21:
3925	{
3926	PBMPOS2COREHDR pOs2Hdr = (PBMPOS2COREHDR)pCoreHdr;
3927	pThisCC->cxLogo = pOs2Hdr->uWidth;
3928	pThisCC->cyLogo = pOs2Hdr->uHeight;
3929	pThisCC->cLogoPlanes = pOs2Hdr->cPlanes;
3930	pThisCC->cLogoBits = pOs2Hdr->cBits;
3931	pThisCC->LogoCompression = BMP_COMPRESSION_TYPE_NONE;
3932	pThisCC->cLogoUsedColors = 0;
3933	break;
3934	}
3935
3936	case BMP_HDR_SIZE_OS22:
3937	{
3938	PBMPOS2COREHDR2 pOs22Hdr = (PBMPOS2COREHDR2)pCoreHdr;
3939	pThisCC->cxLogo = pOs22Hdr->uWidth;
3940	pThisCC->cyLogo = pOs22Hdr->uHeight;
3941	pThisCC->cLogoPlanes = pOs22Hdr->cPlanes;
3942	pThisCC->cLogoBits = pOs22Hdr->cBits;
3943	pThisCC->LogoCompression = pOs22Hdr->enmCompression;
3944	pThisCC->cLogoUsedColors = pOs22Hdr->cClrUsed;
3945	break;
3946	}
3947
3948	case BMP_HDR_SIZE_WIN3X:
3949	pThisCC->cxLogo = pCoreHdr->uWidth;
3950	pThisCC->cyLogo = pCoreHdr->uHeight;
3951	pThisCC->cLogoPlanes = pCoreHdr->cPlanes;
3952	pThisCC->cLogoBits = pCoreHdr->cBits;
3953	pThisCC->LogoCompression = pCoreHdr->enmCompression;
3954	pThisCC->cLogoUsedColors = pCoreHdr->cClrUsed;
3955	break;
3956
3957	default:
3958	AssertLogRelMsgFailedReturn(("Unsupported bitmap header size %u.\n", pCoreHdr->cbSize),
3959	VERR_INVALID_PARAMETER);
3960	break;
3961	}
3962
3963	AssertLogRelMsgReturn(pThisCC->cxLogo <= LOGO_MAX_WIDTH && pThisCC->cyLogo <= LOGO_MAX_HEIGHT,
3964	("Bitmap %ux%u is too big.\n", pThisCC->cxLogo, pThisCC->cyLogo),
3965	VERR_INVALID_PARAMETER);
3966
3967	AssertLogRelMsgReturn(pThisCC->cLogoPlanes == 1,
3968	("Bitmap planes %u != 1.\n", pThisCC->cLogoPlanes),
3969	VERR_INVALID_PARAMETER);
3970
3971	AssertLogRelMsgReturn(pThisCC->cLogoBits == 4 \|\| pThisCC->cLogoBits == 8 \|\| pThisCC->cLogoBits == 24,
3972	("Unsupported %u depth.\n", pThisCC->cLogoBits),
3973	VERR_INVALID_PARAMETER);
3974
3975	AssertLogRelMsgReturn(pThisCC->cLogoUsedColors <= 256,
3976	("Unsupported %u colors.\n", pThisCC->cLogoUsedColors),
3977	VERR_INVALID_PARAMETER);
3978
3979	AssertLogRelMsgReturn(pThisCC->LogoCompression == BMP_COMPRESSION_TYPE_NONE,
3980	("Unsupported %u compression.\n", pThisCC->LogoCompression),
3981	VERR_INVALID_PARAMETER);
3982
3983	AssertLogRelMsgReturn(pLogoHdr->cbLogo > pFileHdr->offBits,
3984	("Wrong bitmap data offset %u, cbLogo=%u.\n", pFileHdr->offBits, pLogoHdr->cbLogo),
3985	VERR_INVALID_PARAMETER);
3986
3987	uint32_t const cbFileData = pLogoHdr->cbLogo - pFileHdr->offBits;
3988	uint32_t cbImageData = (uint32_t)pThisCC->cxLogo * pThisCC->cyLogo * pThisCC->cLogoPlanes;
3989	if (pThisCC->cLogoBits == 4)
3990	cbImageData /= 2;
3991	else if (pThisCC->cLogoBits == 24)
3992	cbImageData *= 3;
3993	AssertLogRelMsgReturn(cbImageData <= cbFileData,
3994	("Wrong BMP header data %u (cbLogo=%u offBits=%u)\n", cbImageData, pFileHdr->offBits, pLogoHdr->cbLogo),
3995	VERR_INVALID_PARAMETER);
3996
3997	AssertLogRelMsgReturn(pLogoHdr->cbLogo == pFileHdr->cbFileSize,
3998	("Wrong bitmap file size %u, cbLogo=%u.\n", pFileHdr->cbFileSize, pLogoHdr->cbLogo),
3999	VERR_INVALID_PARAMETER);
4000
4001	/*
4002	* Read bitmap palette
4003	*/
4004	if (!pThisCC->cLogoUsedColors)
4005	pThisCC->cLogoPalEntries = 1 << (pThisCC->cLogoPlanes * pThisCC->cLogoBits);
4006	else
4007	pThisCC->cLogoPalEntries = pThisCC->cLogoUsedColors;
4008
4009	if (pThisCC->cLogoPalEntries)
4010	{
4011	const uint8_t pbPal = pThisCC->pbLogo + sizeof(LOGOHDR) + sizeof(BMPFILEHDR) + pCoreHdr->cbSize; / ASSUMES Size location (safe) */
4012
4013	for (uint16_t i = 0; i < pThisCC->cLogoPalEntries; i++)
4014	{
4015	uint16_t j;
4016	uint32_t u32Pal = 0;
4017
4018	for (j = 0; j < 3; j++)
4019	{
4020	uint8_t b = *pbPal++;
4021	u32Pal <<= 8;
4022	u32Pal \|= b;
4023	}
4024
4025	pbPal++; /* skip unused byte */
4026	pThisCC->au32LogoPalette[i] = u32Pal;
4027	}
4028	}
4029
4030	/*
4031	* Bitmap data offset
4032	*/
4033	pThisCC->pbLogoBitmap = pThisCC->pbLogo + sizeof(LOGOHDR) + pFileHdr->offBits;
4034	}
4035	else
4036	AssertLogRelMsgFailedReturn(("Not a BMP file.\n"), VERR_INVALID_PARAMETER);
4037
4038	return VINF_SUCCESS;
4039	}
4040
4041
4042	/**
4043	* Show logo bitmap data.
4044	*
4045	* @returns VBox status code.
4046	*
4047	* @param cBits Logo depth.
4048	* @param xLogo Logo X position.
4049	* @param yLogo Logo Y position.
4050	* @param cxLogo Logo width.
4051	* @param cyLogo Logo height.
4052	* @param fInverse True if the bitmask is black on white (only for 1bpp)
4053	* @param iStep Fade in/fade out step.
4054	* @param pu32Palette Palette data.
4055	* @param pbSrc Source buffer.
4056	* @param pbDst Destination buffer.
4057	*/
4058	static void vbeR3ShowBitmap(uint16_t cBits, uint16_t xLogo, uint16_t yLogo, uint16_t cxLogo, uint16_t cyLogo,
4059	bool fInverse, uint8_t iStep, const uint32_t pu32Palette, const uint8_t pbSrc, uint8_t *pbDst)
4060	{
4061	uint16_t i;
4062	size_t cbPadBytes = 0;
4063	size_t cbLineDst = LOGO_MAX_WIDTH * 4;
4064	uint16_t cyLeft = cyLogo;
4065
4066	pbDst += xLogo * 4 + yLogo * cbLineDst;
4067
4068	switch (cBits)
4069	{
4070	case 1:
4071	pbDst += cyLogo * cbLineDst;
4072	cbPadBytes = 0;
4073	break;
4074
4075	case 4:
4076	if (((cxLogo % 8) == 0) \|\| ((cxLogo % 8) > 6))
4077	cbPadBytes = 0;
4078	else if ((cxLogo % 8) <= 2)
4079	cbPadBytes = 3;
4080	else if ((cxLogo % 8) <= 4)
4081	cbPadBytes = 2;
4082	else
4083	cbPadBytes = 1;
4084	break;
4085
4086	case 8:
4087	cbPadBytes = ((cxLogo % 4) == 0) ? 0 : (4 - (cxLogo % 4));
4088	break;
4089
4090	case 24:
4091	cbPadBytes = cxLogo % 4;
4092	break;
4093	}
4094
4095	uint8_t j = 0, c = 0;
4096
4097	while (cyLeft-- > 0)
4098	{
4099	uint8_t *pbTmpDst = pbDst;
4100
4101	if (cBits != 1)
4102	j = 0;
4103
4104	for (i = 0; i < cxLogo; i++)
4105	{
4106	switch (cBits)
4107	{
4108	case 1:
4109	{
4110	if (!j)
4111	c = *pbSrc++;
4112
4113	if (c & 1)
4114	{
4115	if (fInverse)
4116	{
4117	*pbTmpDst++ = 0;
4118	*pbTmpDst++ = 0;
4119	*pbTmpDst++ = 0;
4120	pbTmpDst++;
4121	}
4122	else
4123	{
4124	uint8_t pix = 0xFF * iStep / LOGO_SHOW_STEPS;
4125	*pbTmpDst++ = pix;
4126	*pbTmpDst++ = pix;
4127	*pbTmpDst++ = pix;
4128	pbTmpDst++;
4129	}
4130	}
4131	else
4132	pbTmpDst += 4;
4133	c >>= 1;
4134	j = (j + 1) % 8;
4135	break;
4136	}
4137
4138	case 4:
4139	{
4140	if (!j)
4141	c = *pbSrc++;
4142
4143	uint8_t pix = (c >> 4) & 0xF;
4144	c <<= 4;
4145
4146	uint32_t u32Pal = pu32Palette[pix];
4147
4148	pix = (u32Pal >> 16) & 0xFF;
4149	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4150	pix = (u32Pal >> 8) & 0xFF;
4151	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4152	pix = u32Pal & 0xFF;
4153	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4154	pbTmpDst++;
4155
4156	j = (j + 1) % 2;
4157	break;
4158	}
4159
4160	case 8:
4161	{
4162	uint32_t u32Pal = pu32Palette[*pbSrc++];
4163
4164	uint8_t pix = (u32Pal >> 16) & 0xFF;
4165	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4166	pix = (u32Pal >> 8) & 0xFF;
4167	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4168	pix = u32Pal & 0xFF;
4169	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4170	pbTmpDst++;
4171	break;
4172	}
4173
4174	case 24:
4175	pbTmpDst++ = pbSrc++ * iStep / LOGO_SHOW_STEPS;
4176	pbTmpDst++ = pbSrc++ * iStep / LOGO_SHOW_STEPS;
4177	pbTmpDst++ = pbSrc++ * iStep / LOGO_SHOW_STEPS;
4178	pbTmpDst++;
4179	break;
4180	}
4181	}
4182
4183	pbDst -= cbLineDst;
4184	pbSrc += cbPadBytes;
4185	}
4186	}
4187
4188
4189	/**
4190	* @callback_method_impl{FNIOMIOPORTNEWOUT,
4191	* Port I/O Handler for BIOS Logo OUT operations.}
4192	*/
4193	static DECLCALLBACK(VBOXSTRICTRC)
4194	vbeR3IoPortWriteCmdLogo(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
4195	{
4196	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4197	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
4198	RT_NOREF(pvUser, offPort);
4199
4200	Log(("vbeR3IoPortWriteCmdLogo: cb=%d u32=%#04x(%#04d) (byte)\n", cb, u32, u32));
4201
4202	if (cb == 2)
4203	{
4204	/* Get the logo command */
4205	switch (u32 & 0xFF00)
4206	{
4207	case LOGO_CMD_SET_OFFSET:
4208	pThisCC->offLogoData = u32 & 0xFF;
4209	break;
4210
4211	case LOGO_CMD_SHOW_BMP:
4212	{
4213	uint8_t iStep = u32 & 0xFF;
4214	const uint8_t *pbSrc = pThisCC->pbLogoBitmap;
4215	uint8_t *pbDst;
4216	PCLOGOHDR pLogoHdr = (PCLOGOHDR)pThisCC->pbLogo;
4217	uint32_t offDirty = 0;
4218	uint16_t xLogo = (LOGO_MAX_WIDTH - pThisCC->cxLogo) / 2;
4219	uint16_t yLogo = LOGO_MAX_HEIGHT - (LOGO_MAX_HEIGHT - pThisCC->cyLogo) / 2;
4220
4221	/* Check VRAM size */
4222	if (pThis->vram_size < LOGO_MAX_SIZE)
4223	break;
4224
4225	if (pThis->vram_size >= LOGO_MAX_SIZE * 2)
4226	pbDst = pThisCC->pbVRam + LOGO_MAX_SIZE;
4227	else
4228	pbDst = pThisCC->pbVRam;
4229
4230	/* Clear screen - except on power on... */
4231	if (!pThisCC->fLogoClearScreen)
4232	{
4233	/* Clear vram */
4234	uint32_t pu32Dst = (uint32_t )pbDst;
4235	for (int i = 0; i < LOGO_MAX_WIDTH; i++)
4236	for (int j = 0; j < LOGO_MAX_HEIGHT; j++)
4237	*pu32Dst++ = 0;
4238	pThisCC->fLogoClearScreen = true;
4239	}
4240
4241	/* Show the bitmap. */
4242	vbeR3ShowBitmap(pThisCC->cLogoBits, xLogo, yLogo,
4243	pThisCC->cxLogo, pThisCC->cyLogo,
4244	false, iStep, &pThisCC->au32LogoPalette[0],
4245	pbSrc, pbDst);
4246
4247	/* Show the 'Press F12...' text. */
4248	if (pLogoHdr->fu8ShowBootMenu == 2)
4249	vbeR3ShowBitmap(1, LOGO_F12TEXT_X, LOGO_F12TEXT_Y,
4250	LOGO_F12TEXT_WIDTH, LOGO_F12TEXT_HEIGHT,
4251	pThisCC->fBootMenuInverse, iStep, &pThisCC->au32LogoPalette[0],
4252	&g_abLogoF12BootText[0], pbDst);
4253
4254	/* Blit the offscreen buffer. */
4255	if (pThis->vram_size >= LOGO_MAX_SIZE * 2)
4256	{
4257	uint32_t pu32TmpDst = (uint32_t )pThisCC->pbVRam;
4258	uint32_t pu32TmpSrc = (uint32_t )(pThisCC->pbVRam + LOGO_MAX_SIZE);
4259	for (int i = 0; i < LOGO_MAX_WIDTH; i++)
4260	{
4261	for (int j = 0; j < LOGO_MAX_HEIGHT; j++)
4262	pu32TmpDst++ = pu32TmpSrc++;
4263	}
4264	}
4265
4266	/* Set the dirty flags. */
4267	while (offDirty <= LOGO_MAX_SIZE)
4268	{
4269	vgaR3MarkDirty(pThis, offDirty);
4270	offDirty += GUEST_PAGE_SIZE;
4271	}
4272	break;
4273	}
4274
4275	default:
4276	Log(("vbeR3IoPortWriteCmdLogo: invalid command %d\n", u32));
4277	pThisCC->LogoCommand = LOGO_CMD_NOP;
4278	break;
4279	}
4280
4281	return VINF_SUCCESS;
4282	}
4283
4284	Log(("vbeR3IoPortWriteCmdLogo: Ignoring invalid cb=%d writes to the VBE Extra port!!!\n", cb));
4285	return VINF_SUCCESS;
4286	}
4287
4288
4289	/**
4290	* @callback_method_impl{FNIOMIOPORTIN,
4291	* Port I/O Handler for BIOS Logo IN operations.}
4292	*/
4293	static DECLCALLBACK(VBOXSTRICTRC)
4294	vbeR3IoPortReadCmdLogo(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
4295	{
4296	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
4297	RT_NOREF(pvUser, offPort);
4298
4299	if (pThisCC->offLogoData + cb > pThisCC->cbLogo)
4300	{
4301	Log(("vbeR3IoPortReadCmdLogo: Requested address is out of Logo data!!! offLogoData=%#x(%d) cbLogo=%#x(%d)\n",
4302	pThisCC->offLogoData, pThisCC->offLogoData, pThisCC->cbLogo, pThisCC->cbLogo));
4303	return VINF_SUCCESS;
4304	}
4305	RT_UNTRUSTED_VALIDATED_FENCE();
4306
4307	PCRTUINT64U p = (PCRTUINT64U)&pThisCC->pbLogo[pThisCC->offLogoData];
4308	switch (cb)
4309	{
4310	case 1: *pu32 = p->au8[0]; break;
4311	case 2: *pu32 = p->au16[0]; break;
4312	case 4: *pu32 = p->au32[0]; break;
4313	//case 8: *pu32 = p->au64[0]; break;
4314	default: AssertFailed(); break;
4315	}
4316	Log(("vbeR3IoPortReadCmdLogo: LogoOffset=%#x(%d) cb=%#x %.*Rhxs\n", pThisCC->offLogoData, pThisCC->offLogoData, cb, cb, pu32));
4317
4318	pThisCC->LogoCommand = LOGO_CMD_NOP;
4319	pThisCC->offLogoData += cb;
4320
4321	return VINF_SUCCESS;
4322	}
4323
4324
4325	/* -=-=-=-=-=- Ring 3: Debug Info Handlers -=-=-=-=-=- */
4326
4327	/**
4328	* @callback_method_impl{FNDBGFHANDLERDEV,
4329	* Dumps several interesting bits of the VGA state that are difficult to
4330	* decode from the registers.}
4331	*/
4332	static DECLCALLBACK(void) vgaR3InfoState(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4333	{
4334	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4335	int is_graph, double_scan;
4336	int w, h, char_height, char_dots;
4337	int val, vfreq_hz, hfreq_hz;
4338	vga_retrace_s *r = &pThis->retrace_state;
4339	const char *clocks[] = { "25.175 MHz", "28.322 MHz", "External", "Reserved?!" };
4340	NOREF(pszArgs);
4341
4342	is_graph = pThis->gr[6] & 1;
4343	char_dots = (pThis->sr[0x01] & 1) ? 8 : 9;
4344	double_scan = pThis->cr[9] >> 7;
4345	pHlp->pfnPrintf(pHlp, "Misc status reg. MSR:%02X\n", pThis->msr);
4346	pHlp->pfnPrintf(pHlp, "pixel clock: %s\n", clocks[(pThis->msr >> 2) & 3]);
4347	pHlp->pfnPrintf(pHlp, "double scanning %s\n", double_scan ? "on" : "off");
4348	pHlp->pfnPrintf(pHlp, "double clocking %s\n", pThis->sr[1] & 0x08 ? "on" : "off");
4349	val = pThis->cr[0] + 5;
4350	pHlp->pfnPrintf(pHlp, "htotal: %d px (%d cclk)\n", val * char_dots, val);
4351	val = pThis->cr[6] + ((pThis->cr[7] & 1) << 8) + ((pThis->cr[7] & 0x20) << 4) + 2;
4352	pHlp->pfnPrintf(pHlp, "vtotal: %d px\n", val);
4353	val = pThis->cr[1] + 1;
4354	w = val * char_dots;
4355	pHlp->pfnPrintf(pHlp, "hdisp : %d px (%d cclk)\n", w, val);
4356	val = pThis->cr[0x12] + ((pThis->cr[7] & 2) << 7) + ((pThis->cr[7] & 0x40) << 4) + 1;
4357	h = val;
4358	pHlp->pfnPrintf(pHlp, "vdisp : %d px\n", val);
4359	val = ((pThis->cr[9] & 0x40) << 3) + ((pThis->cr[7] & 0x10) << 4) + pThis->cr[0x18];
4360	pHlp->pfnPrintf(pHlp, "split : %d ln\n", val);
4361	val = (pThis->cr[0xc] << 8) + pThis->cr[0xd];
4362	pHlp->pfnPrintf(pHlp, "start : %#x\n", val);
4363	if (!is_graph)
4364	{
4365	uint8_t ch_stride;
4366
4367	ch_stride = pThis->cr[0x17] & 0x40 ? 4 : 8;
4368	val = (pThis->cr[9] & 0x1f) + 1;
4369	char_height = val;
4370	pHlp->pfnPrintf(pHlp, "char height %d\n", val);
4371	pHlp->pfnPrintf(pHlp, "text mode %dx%d\n", w / char_dots, h / (char_height << double_scan));
4372
4373	uint32_t cbLine;
4374	uint32_t offStart;
4375	uint32_t uLineCompareIgn;
4376	vgaR3GetOffsets(pThis, &cbLine, &offStart, &uLineCompareIgn);
4377	if (!cbLine)
4378	cbLine = 80 * ch_stride;
4379	offStart *= ch_stride;
4380	pHlp->pfnPrintf(pHlp, "cbLine: %#x\n", cbLine);
4381	pHlp->pfnPrintf(pHlp, "offStart: %#x (line %#x)\n", offStart, offStart / cbLine);
4382	}
4383	if (pThis->fRealRetrace)
4384	{
4385	val = r->hb_start;
4386	pHlp->pfnPrintf(pHlp, "hblank start: %d px (%d cclk)\n", val * char_dots, val);
4387	val = r->hb_end;
4388	pHlp->pfnPrintf(pHlp, "hblank end : %d px (%d cclk)\n", val * char_dots, val);
4389	pHlp->pfnPrintf(pHlp, "vblank start: %d px, end: %d px\n", r->vb_start, r->vb_end);
4390	pHlp->pfnPrintf(pHlp, "vsync start : %d px, end: %d px\n", r->vs_start, r->vs_end);
4391	pHlp->pfnPrintf(pHlp, "cclks per frame: %d\n", r->frame_cclks);
4392	pHlp->pfnPrintf(pHlp, "cclk time (ns) : %d\n", r->cclk_ns);
4393	if (r->frame_ns && r->h_total_ns) /* Careful in case state is temporarily invalid. */
4394	{
4395	vfreq_hz = 1000000000 / r->frame_ns;
4396	hfreq_hz = 1000000000 / r->h_total_ns;
4397	pHlp->pfnPrintf(pHlp, "vfreq: %d Hz, hfreq: %d.%03d kHz\n",
4398	vfreq_hz, hfreq_hz / 1000, hfreq_hz % 1000);
4399	}
4400	}
4401	pHlp->pfnPrintf(pHlp, "display refresh interval: %u ms\n", pThis->cMilliesRefreshInterval);
4402
4403	# ifdef VBOX_WITH_VMSVGA
4404	if (pThis->svga.fEnabled)
4405	pHlp->pfnPrintf(pHlp, pThis->svga.f3DEnabled ? "VMSVGA 3D enabled: %ux%ux%u\n" : "VMSVGA enabled: %ux%ux%u",
4406	pThis->svga.uWidth, pThis->svga.uHeight, pThis->svga.uBpp);
4407	# endif
4408	}
4409
4410
4411	/**
4412	* Prints a separator line.
4413	*
4414	* @param pHlp Callback functions for doing output.
4415	* @param cCols The number of columns.
4416	* @param pszTitle The title text, NULL if none.
4417	*/
4418	static void vgaR3InfoTextPrintSeparatorLine(PCDBGFINFOHLP pHlp, size_t cCols, const char *pszTitle)
4419	{
4420	if (pszTitle)
4421	{
4422	size_t cchTitle = strlen(pszTitle);
4423	if (cchTitle + 6 >= cCols)
4424	{
4425	pHlp->pfnPrintf(pHlp, "-- %s --", pszTitle);
4426	cCols = 0;
4427	}
4428	else
4429	{
4430	size_t cchLeft = (cCols - cchTitle - 2) / 2;
4431	cCols -= cchLeft + cchTitle + 2;
4432	while (cchLeft-- > 0)
4433	pHlp->pfnPrintf(pHlp, "-");
4434	pHlp->pfnPrintf(pHlp, " %s ", pszTitle);
4435	}
4436	}
4437
4438	while (cCols-- > 0)
4439	pHlp->pfnPrintf(pHlp, "-");
4440	pHlp->pfnPrintf(pHlp, "\n");
4441	}
4442
4443
4444	/**
4445	* Worker for vgaR3InfoText.
4446	*
4447	* @param pThis The shared VGA state.
4448	* @param pThisCC The VGA state for ring-3.
4449	* @param pHlp Callback functions for doing output.
4450	* @param offStart Where to start dumping (relative to the VRAM).
4451	* @param cbLine The source line length (aka line_offset).
4452	* @param cCols The number of columns on the screen.
4453	* @param cRows The number of rows to dump.
4454	* @param iScrBegin The row at which the current screen output starts.
4455	* @param iScrEnd The row at which the current screen output end
4456	* (exclusive).
4457	*/
4458	static void vgaR3InfoTextWorker(PVGASTATE pThis, PVGASTATER3 pThisCC, PCDBGFINFOHLP pHlp,
4459	uint32_t offStart, uint32_t cbLine,
4460	uint32_t cCols, uint32_t cRows,
4461	uint32_t iScrBegin, uint32_t iScrEnd)
4462	{
4463	/* Title, */
4464	char szTitle[32];
4465	if (iScrBegin \|\| iScrEnd < cRows)
4466	RTStrPrintf(szTitle, sizeof(szTitle), "%ux%u (+%u before, +%u after)",
4467	cCols, iScrEnd - iScrBegin, iScrBegin, cRows - iScrEnd);
4468	else
4469	RTStrPrintf(szTitle, sizeof(szTitle), "%ux%u", cCols, iScrEnd - iScrBegin);
4470
4471	/* Do the dumping. */
4472	uint8_t const *pbSrcOuter = pThisCC->pbVRam + offStart;
4473	uint8_t const cStride = pThis->cr[0x17] & 0x40 ? 4 : 8;
4474	uint32_t iRow;
4475	for (iRow = 0; iRow < cRows; iRow++, pbSrcOuter += cbLine)
4476	{
4477	if ((uintptr_t)(pbSrcOuter + cbLine - pThisCC->pbVRam) > pThis->vram_size) {
4478	pHlp->pfnPrintf(pHlp, "The last %u row/rows is/are outside the VRAM.\n", cRows - iRow);
4479	break;
4480	}
4481
4482	if (iRow == 0)
4483	vgaR3InfoTextPrintSeparatorLine(pHlp, cCols, szTitle);
4484	else if (iRow == iScrBegin)
4485	vgaR3InfoTextPrintSeparatorLine(pHlp, cCols, "screen start");
4486	else if (iRow == iScrEnd)
4487	vgaR3InfoTextPrintSeparatorLine(pHlp, cCols, "screen end");
4488
4489	uint8_t const *pbSrc = pbSrcOuter;
4490	for (uint32_t iCol = 0; iCol < cCols; ++iCol)
4491	{
4492	if (RT_C_IS_PRINT(*pbSrc))
4493	pHlp->pfnPrintf(pHlp, "%c", *pbSrc);
4494	else
4495	pHlp->pfnPrintf(pHlp, ".");
4496	pbSrc += cStride; /* chars are spaced 8 or sometimes 4 bytes apart */
4497	}
4498	pHlp->pfnPrintf(pHlp, "\n");
4499	}
4500
4501	/* Final separator. */
4502	vgaR3InfoTextPrintSeparatorLine(pHlp, cCols, NULL);
4503	}
4504
4505
4506	/**
4507	* @callback_method_impl{FNDBGFHANDLERDEV,
4508	* Dumps VGA memory formatted as ASCII text\, no attributes. Only looks at
4509	* the first page.}
4510	*/
4511	static DECLCALLBACK(void) vgaR3InfoText(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4512	{
4513	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4514	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
4515
4516	/*
4517	* Parse args.
4518	*/
4519	bool fAll = true;
4520	if (pszArgs && *pszArgs)
4521	{
4522	if (!strcmp(pszArgs, "all"))
4523	fAll = true;
4524	else if (!strcmp(pszArgs, "scr") \|\| !strcmp(pszArgs, "screen"))
4525	fAll = false;
4526	else
4527	{
4528	pHlp->pfnPrintf(pHlp, "Invalid argument: '%s'\n", pszArgs);
4529	return;
4530	}
4531	}
4532
4533	/*
4534	* Check that we're in text mode and that the VRAM is accessible.
4535	*/
4536	if (!(pThis->gr[6] & 1))
4537	{
4538	uint8_t *pbSrc = pThisCC->pbVRam;
4539	if (pbSrc)
4540	{
4541	/*
4542	* Figure out the display size and where the text is.
4543	*
4544	* Note! We're cutting quite a few corners here and this code could
4545	* do with some brushing up. Dumping from the start of the
4546	* frame buffer is done intentionally so that we're more
4547	* likely to obtain the full scrollback of a linux panic.
4548	* windbg> .printf "------ start -----\n"; .for (r $t0 = 0; @$t0 < 25; r $t0 = @$t0 + 1) { .for (r $t1 = 0; @$t1 < 80; r $t1 = @$t1 + 1) { .printf "%c", by( (@$t0 * 80 + @$t1) * 8 + 100f0000) }; .printf "\n" }; .printf "------ end -----\n";
4549	*/
4550	uint32_t cbLine;
4551	uint32_t offStart;
4552	uint32_t uLineCompareIgn;
4553	vgaR3GetOffsets(pThis, &cbLine, &offStart, &uLineCompareIgn);
4554	if (!cbLine)
4555	cbLine = 80 * 8;
4556	offStart *= 8;
4557
4558	uint32_t uVDisp = pThis->cr[0x12] + ((pThis->cr[7] & 2) << 7) + ((pThis->cr[7] & 0x40) << 4) + 1;
4559	uint32_t uCharHeight = (pThis->cr[9] & 0x1f) + 1;
4560	uint32_t uDblScan = pThis->cr[9] >> 7;
4561	uint32_t cScrRows = uVDisp / (uCharHeight << uDblScan);
4562	if (cScrRows < 25)
4563	cScrRows = 25;
4564	uint32_t iScrBegin = offStart / cbLine;
4565	uint32_t cRows = iScrBegin + cScrRows;
4566	uint32_t cCols = cbLine / 8;
4567
4568	if (fAll)
4569	vgaR3InfoTextWorker(pThis, pThisCC, pHlp, offStart - iScrBegin * cbLine, cbLine,
4570	cCols, cRows, iScrBegin, iScrBegin + cScrRows);
4571	else
4572	vgaR3InfoTextWorker(pThis, pThisCC, pHlp, offStart, cbLine, cCols, cScrRows, 0, cScrRows);
4573	}
4574	else
4575	pHlp->pfnPrintf(pHlp, "VGA memory not available!\n");
4576	}
4577	else
4578	pHlp->pfnPrintf(pHlp, "Not in text mode!\n");
4579	}
4580
4581
4582	/**
4583	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VGA Sequencer registers.}
4584	*/
4585	static DECLCALLBACK(void) vgaR3InfoSR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4586	{
4587	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4588	NOREF(pszArgs);
4589
4590	pHlp->pfnPrintf(pHlp, "VGA Sequencer (3C5): SR index 3C4:%02X\n", pThis->sr_index);
4591	Assert(sizeof(pThis->sr) >= 8);
4592	for (unsigned i = 0; i < 8; ++i)
4593	pHlp->pfnPrintf(pHlp, " SR%02X:%02X", i, pThis->sr[i]);
4594	pHlp->pfnPrintf(pHlp, "\n");
4595	}
4596
4597
4598	/**
4599	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VGA CRTC registers.}
4600	*/
4601	static DECLCALLBACK(void) vgaR3InfoCR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4602	{
4603	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4604	unsigned i;
4605	NOREF(pszArgs);
4606
4607	pHlp->pfnPrintf(pHlp, "VGA CRTC (3D5): CRTC index 3D4:%02X\n", pThis->cr_index);
4608	Assert(sizeof(pThis->cr) >= 24);
4609	for (i = 0; i < 10; ++i)
4610	pHlp->pfnPrintf(pHlp, " CR%02X:%02X", i, pThis->cr[i]);
4611	pHlp->pfnPrintf(pHlp, "\n");
4612	for (i = 10; i < 20; ++i)
4613	pHlp->pfnPrintf(pHlp, " CR%02X:%02X", i, pThis->cr[i]);
4614	pHlp->pfnPrintf(pHlp, "\n");
4615	for (i = 20; i < 25; ++i)
4616	pHlp->pfnPrintf(pHlp, " CR%02X:%02X", i, pThis->cr[i]);
4617	pHlp->pfnPrintf(pHlp, "\n");
4618	}
4619
4620
4621	/**
4622	* @callback_method_impl{FNDBGFHANDLERDEV,
4623	* Dumps VGA Graphics Controller registers.}
4624	*/
4625	static DECLCALLBACK(void) vgaR3InfoGR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4626	{
4627	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4628	NOREF(pszArgs);
4629
4630	pHlp->pfnPrintf(pHlp, "VGA Graphics Controller (3CF): GR index 3CE:%02X\n", pThis->gr_index);
4631	Assert(sizeof(pThis->gr) >= 9);
4632	for (unsigned i = 0; i < 9; ++i)
4633	pHlp->pfnPrintf(pHlp, " GR%02X:%02X", i, pThis->gr[i]);
4634	pHlp->pfnPrintf(pHlp, "\n");
4635	}
4636
4637
4638	/**
4639	* @callback_method_impl{FNDBGFHANDLERDEV,
4640	* Dumps VGA Attribute Controller registers.}
4641	*/
4642	static DECLCALLBACK(void) vgaR3InfoAR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4643	{
4644	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4645	unsigned i;
4646	NOREF(pszArgs);
4647
4648	pHlp->pfnPrintf(pHlp, "VGA Attribute Controller (3C0): index reg %02X, flip-flop: %d (%s)\n",
4649	pThis->ar_index, pThis->ar_flip_flop, pThis->ar_flip_flop ? "data" : "index" );
4650	Assert(sizeof(pThis->ar) >= 0x14);
4651	pHlp->pfnPrintf(pHlp, " Palette:");
4652	for (i = 0; i < 0x10; ++i)
4653	pHlp->pfnPrintf(pHlp, " %02X", pThis->ar[i]);
4654	pHlp->pfnPrintf(pHlp, "\n");
4655	for (i = 0x10; i <= 0x14; ++i)
4656	pHlp->pfnPrintf(pHlp, " AR%02X:%02X", i, pThis->ar[i]);
4657	pHlp->pfnPrintf(pHlp, "\n");
4658	}
4659
4660
4661	/**
4662	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VGA DAC registers.}
4663	*/
4664	static DECLCALLBACK(void) vgaR3InfoDAC(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4665	{
4666	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4667	NOREF(pszArgs);
4668
4669	pHlp->pfnPrintf(pHlp, "VGA DAC contents:\n");
4670	for (unsigned i = 0; i < 0x100; ++i)
4671	pHlp->pfnPrintf(pHlp, " %02X: %02X %02X %02X\n",
4672	i, pThis->palette[i3+0], pThis->palette[i3+1], pThis->palette[i*3+2]);
4673	}
4674
4675
4676	/**
4677	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VBE registers.}
4678	*/
4679	static DECLCALLBACK(void) vgaR3InfoVBE(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4680	{
4681	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4682	NOREF(pszArgs);
4683
4684	pHlp->pfnPrintf(pHlp, "LFB at %RGp\n", pThis->GCPhysVRAM);
4685	if (!(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED))
4686	pHlp->pfnPrintf(pHlp, "VBE disabled\n");
4687	else
4688	{
4689	pHlp->pfnPrintf(pHlp, "VBE state (chip ID 0x%04x):\n", pThis->vbe_regs[VBE_DISPI_INDEX_ID]);
4690	pHlp->pfnPrintf(pHlp, " Display resolution: %d x %d @ %dbpp\n",
4691	pThis->vbe_regs[VBE_DISPI_INDEX_XRES], pThis->vbe_regs[VBE_DISPI_INDEX_YRES],
4692	pThis->vbe_regs[VBE_DISPI_INDEX_BPP]);
4693	pHlp->pfnPrintf(pHlp, " Virtual resolution: %d x %d\n",
4694	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH], pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT]);
4695	pHlp->pfnPrintf(pHlp, " Display start addr: %d, %d\n",
4696	pThis->vbe_regs[VBE_DISPI_INDEX_X_OFFSET], pThis->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET]);
4697	pHlp->pfnPrintf(pHlp, " Linear scanline pitch: 0x%04x\n", pThis->vbe_line_offset);
4698	pHlp->pfnPrintf(pHlp, " Linear display start : 0x%04x\n", pThis->vbe_start_addr);
4699	pHlp->pfnPrintf(pHlp, " Selected bank: 0x%04x\n", pThis->vbe_regs[VBE_DISPI_INDEX_BANK]);
4700	pHlp->pfnPrintf(pHlp, " DAC: %d-bit\n", pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_8BIT_DAC ? 8 : 6);
4701	}
4702	}
4703
4704
4705	/**
4706	* @callback_method_impl{FNDBGFHANDLERDEV,
4707	* Dumps register state relevant to 16-color planar graphics modes (GR/SR)
4708	* in human-readable form.}
4709	*/
4710	static DECLCALLBACK(void) vgaR3InfoPlanar(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4711	{
4712	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4713	NOREF(pszArgs);
4714
4715	unsigned val1 = (pThis->gr[5] >> 3) & 1;
4716	unsigned val2 = pThis->gr[5] & 3;
4717	pHlp->pfnPrintf(pHlp, "read mode : %u write mode: %u\n", val1, val2);
4718	val1 = pThis->gr[0];
4719	val2 = pThis->gr[1];
4720	pHlp->pfnPrintf(pHlp, "set/reset data: %02X S/R enable: %02X\n", val1, val2);
4721	val1 = pThis->gr[2];
4722	val2 = pThis->gr[4] & 3;
4723	pHlp->pfnPrintf(pHlp, "color compare : %02X read map : %u\n", val1, val2);
4724	val1 = pThis->gr[3] & 7;
4725	val2 = (pThis->gr[3] >> 3) & 3;
4726	pHlp->pfnPrintf(pHlp, "rotate : %u function : %u\n", val1, val2);
4727	val1 = pThis->gr[7];
4728	val2 = pThis->gr[8];
4729	pHlp->pfnPrintf(pHlp, "don't care : %02X bit mask : %02X\n", val1, val2);
4730	val1 = pThis->sr[2];
4731	val2 = pThis->sr[4] & 8;
4732	pHlp->pfnPrintf(pHlp, "seq plane mask: %02X chain-4 : %s\n", val1, val2 ? "on" : "off");
4733	}
4734
4735
4736	/* -=-=-=-=-=- Ring 3: IBase -=-=-=-=-=- */
4737
4738	/**
4739	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
4740	*/
4741	static DECLCALLBACK(void ) vgaR3PortQueryInterface(PPDMIBASE pInterface, const char pszIID)
4742	{
4743	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IBase);
4744	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThisCC->IBase);
4745	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIDISPLAYPORT, &pThisCC->IPort);
4746	# if defined(VBOX_WITH_HGSMI) && defined(VBOX_WITH_VIDEOHWACCEL)
4747	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIDISPLAYVBVACALLBACKS, &pThisCC->IVBVACallbacks);
4748	# endif
4749	PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThisCC->ILeds);
4750	return NULL;
4751	}
4752
4753
4754	/* -=-=-=-=-=- Ring 3: ILeds -=-=-=-=-=- */
4755
4756	/**
4757	* @interface_method_impl{PDMILEDPORTS,pfnQueryStatusLed}
4758	*/
4759	static DECLCALLBACK(int) vgaR3PortQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
4760	{
4761	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, ILeds);
4762	PPDMDEVINS pDevIns = pThisCC->pDevIns;
4763	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4764	switch (iLUN)
4765	{
4766	/* LUN #0 is the only one for which we have a status LED. */
4767	case 0:
4768	{
4769	*ppLed = &pThis->Led3D;
4770	Assert((*ppLed)->u32Magic == PDMLED_MAGIC);
4771	return VINF_SUCCESS;
4772	}
4773
4774	default:
4775	AssertMsgFailed(("Invalid LUN #%u\n", iLUN));
4776	return VERR_PDM_NO_SUCH_LUN;
4777	}
4778	}
4779
4780
4781	/* -=-=-=-=-=- Ring 3: Dummy IDisplayConnector -=-=-=-=-=- */
4782
4783	/**
4784	* @interface_method_impl{PDMIDISPLAYCONNECTOR,pfnResize}
4785	*/
4786	static DECLCALLBACK(int) vgaR3DummyResize(PPDMIDISPLAYCONNECTOR pInterface, uint32_t cBits, void *pvVRAM,
4787	uint32_t cbLine, uint32_t cx, uint32_t cy)
4788	{
4789	RT_NOREF(pInterface, cBits, pvVRAM, cbLine, cx, cy);
4790	return VINF_SUCCESS;
4791	}
4792
4793
4794	/**
4795	* @interface_method_impl{PDMIDISPLAYCONNECTOR,pfnUpdateRect}
4796	*/
4797	static DECLCALLBACK(void) vgaR3DummyUpdateRect(PPDMIDISPLAYCONNECTOR pInterface, uint32_t x, uint32_t y, uint32_t cx, uint32_t cy)
4798	{
4799	RT_NOREF(pInterface, x, y, cx, cy);
4800	}
4801
4802
4803	/**
4804	* @interface_method_impl{PDMIDISPLAYCONNECTOR,pfnRefresh}
4805	*/
4806	static DECLCALLBACK(void) vgaR3DummyRefresh(PPDMIDISPLAYCONNECTOR pInterface)
4807	{
4808	NOREF(pInterface);
4809	}
4810
4811
4812	/* -=-=-=-=-=- Ring 3: IDisplayPort -=-=-=-=-=- */
4813
4814	/**
4815	* @interface_method_impl{PDMIDISPLAYPORT,pfnUpdateDisplay}
4816	*/
4817	static DECLCALLBACK(int) vgaR3PortUpdateDisplay(PPDMIDISPLAYPORT pInterface)
4818	{
4819	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
4820	PPDMDEVINS pDevIns = pThisCC->pDevIns;
4821	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4822
4823	int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
4824	AssertRCReturn(rc, rc);
4825
4826	# ifdef VBOX_WITH_VMSVGA
4827	if ( pThis->svga.fEnabled
4828	&& !pThis->svga.fTraces)
4829	{
4830	/* Nothing to do as the guest will explicitely update us about frame buffer changes. */
4831	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
4832	return VINF_SUCCESS;
4833	}
4834	#endif
4835
4836	# ifndef VBOX_WITH_HGSMI
4837	/* This should be called only in non VBVA mode. */
4838	# else
4839	if (VBVAUpdateDisplay(pThis, pThisCC) == VINF_SUCCESS)
4840	{
4841	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
4842	return VINF_SUCCESS;
4843	}
4844	# endif /* VBOX_WITH_HGSMI */
4845
4846	STAM_COUNTER_INC(&pThis->StatUpdateDisp);
4847
4848	if (pThis->GCPhysVRAM != 0 && pThis->GCPhysVRAM != NIL_RTGCPHYS)
4849	vgaR3UpdateDirtyBitsAndResetMonitoring(pDevIns, pThis);
4850
4851	if (pThis->fRemappedVGA)
4852	{
4853	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
4854	STAM_COUNTER_INC(&pThis->StatMapReset);
4855	vgaResetRemapped(pThis);
4856	}
4857
4858	rc = vgaR3UpdateDisplay(pDevIns, pThis, pThisCC, false /fUpdateAll/, false /fFailOnResize/, true /reset_dirty/,
4859	pThisCC->pDrv, &pThis->graphic_mode);
4860	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
4861	return rc;
4862	}
4863
4864
4865	/**
4866	* Internal vgaR3PortUpdateDisplayAll worker called under pThis->CritSect.
4867	*/
4868	static int vgaR3UpdateDisplayAllInternal(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC, bool fFailOnResize)
4869	{
4870	# ifdef VBOX_WITH_VMSVGA
4871	if ( !pThis->svga.fEnabled
4872	\|\| pThis->svga.fTraces)
4873	# endif
4874	{
4875	/* Update the dirty bits. */
4876	if (pThis->GCPhysVRAM != 0 && pThis->GCPhysVRAM != NIL_RTGCPHYS)
4877	vgaR3UpdateDirtyBitsAndResetMonitoring(pDevIns, pThis);
4878	}
4879
4880	if (pThis->fRemappedVGA)
4881	{
4882	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
4883	STAM_COUNTER_INC(&pThis->StatMapReset);
4884	vgaResetRemapped(pThis);
4885	}
4886
4887	pThis->graphic_mode = -1; /* force full update */
4888
4889	return vgaR3UpdateDisplay(pDevIns, pThis, pThisCC, true /fUpdateAll/, fFailOnResize,
4890	true /reset_dirty/, pThisCC->pDrv, &pThis->graphic_mode);
4891	}
4892
4893
4894	/**
4895	* @interface_method_impl{PDMIDISPLAYPORT,pfnUpdateDisplayAll}
4896	*/
4897	static DECLCALLBACK(int) vgaR3PortUpdateDisplayAll(PPDMIDISPLAYPORT pInterface, bool fFailOnResize)
4898	{
4899	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
4900	PPDMDEVINS pDevIns = pThisCC->pDevIns;
4901	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4902
4903	/* This is called both in VBVA mode and normal modes. */
4904
4905	# ifdef DEBUG_sunlover
4906	LogFlow(("vgaR3PortUpdateDisplayAll\n"));
4907	# endif /* DEBUG_sunlover */
4908
4909	int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
4910	AssertRCReturn(rc, rc);
4911
4912	rc = vgaR3UpdateDisplayAllInternal(pDevIns, pThis, pThisCC, fFailOnResize);
4913
4914	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
4915	return rc;
4916	}
4917
4918
4919	/**
4920	* @interface_method_impl{PDMIDISPLAYPORT,pfnSetRefreshRate}
4921	*/
4922	static DECLCALLBACK(int) vgaR3PortSetRefreshRate(PPDMIDISPLAYPORT pInterface, uint32_t cMilliesInterval)
4923	{
4924	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
4925	PPDMDEVINS pDevIns = pThisCC->pDevIns;
4926	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4927
4928	/*
4929	* Update the interval, notify the VMSVGA FIFO thread if sleeping,
4930	* then restart or stop the timer.
4931	*/
4932	ASMAtomicWriteU32(&pThis->cMilliesRefreshInterval, cMilliesInterval);
4933
4934	# ifdef VBOX_WITH_VMSVGA
4935	if (pThis->svga.fFIFOThreadSleeping)
4936	PDMDevHlpSUPSemEventSignal(pDevIns, pThis->svga.hFIFORequestSem);
4937	# endif
4938
4939	if (cMilliesInterval)
4940	return PDMDevHlpTimerSetMillies(pDevIns, pThis->hRefreshTimer, cMilliesInterval);
4941	return PDMDevHlpTimerStop(pDevIns, pThis->hRefreshTimer);
4942	}
4943
4944
4945	/**
4946	* @interface_method_impl{PDMIDISPLAYPORT,pfnQueryVideoMode}
4947	*/
4948	static DECLCALLBACK(int) vgaR3PortQueryVideoMode(PPDMIDISPLAYPORT pInterface, uint32_t pcBits, uint32_t pcx, uint32_t *pcy)
4949	{
4950	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
4951	PPDMDEVINS pDevIns = pThisCC->pDevIns;
4952	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4953
4954	AssertReturn(pcBits, VERR_INVALID_PARAMETER);
4955
4956	*pcBits = vgaR3GetBpp(pThis);
4957	if (pcx)
4958	*pcx = pThis->last_scr_width;
4959	if (pcy)
4960	*pcy = pThis->last_scr_height;
4961	return VINF_SUCCESS;
4962	}
4963
4964
4965	/**
4966	* @interface_method_impl{PDMIDISPLAYPORT,pfnTakeScreenshot}
4967	*/
4968	static DECLCALLBACK(int) vgaR3PortTakeScreenshot(PPDMIDISPLAYPORT pInterface, uint8_t *ppbData, size_t pcbData,
4969	uint32_t pcx, uint32_t pcy)
4970	{
4971	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
4972	PPDMDEVINS pDevIns = pThisCC->pDevIns;
4973	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
4974	PDMDEV_ASSERT_EMT(pDevIns);
4975
4976	LogFlow(("vgaR3PortTakeScreenshot: ppbData=%p pcbData=%p pcx=%p pcy=%p\n", ppbData, pcbData, pcx, pcy));
4977
4978	/*
4979	* Validate input.
4980	*/
4981	if (!RT_VALID_PTR(ppbData) \|\| !RT_VALID_PTR(pcbData) \|\| !RT_VALID_PTR(pcx) \|\| !RT_VALID_PTR(pcy))
4982	return VERR_INVALID_PARAMETER;
4983
4984	int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
4985	AssertRCReturn(rc, rc);
4986
4987	/*
4988	* Get screenshot. This function will fail if a resize is required.
4989	* So there is not need to do a 'vgaR3UpdateDisplayAllInternal' before taking screenshot.
4990	*/
4991
4992	/*
4993	* Allocate the buffer for 32 bits per pixel bitmap
4994	*
4995	* Note! The size can't be zero or greater than the size of the VRAM.
4996	* Inconsistent VGA device state can cause the incorrect size values.
4997	*/
4998	size_t cbRequired = pThis->last_scr_width * 4 * pThis->last_scr_height;
4999	if (cbRequired && cbRequired <= pThis->vram_size)
5000	{
5001	uint8_t pbData = (uint8_t )RTMemAlloc(cbRequired);
5002	if (pbData != NULL)
5003	{
5004	/*
5005	* Only 3 methods, assigned below, will be called during the screenshot update.
5006	* All other are already set to NULL.
5007	*/
5008	/* The display connector interface is temporarily replaced with the fake one. */
5009	PDMIDISPLAYCONNECTOR Connector;
5010	RT_ZERO(Connector);
5011	Connector.pbData = pbData;
5012	Connector.cBits = 32;
5013	Connector.cx = pThis->last_scr_width;
5014	Connector.cy = pThis->last_scr_height;
5015	Connector.cbScanline = Connector.cx * 4;
5016	Connector.pfnRefresh = vgaR3DummyRefresh;
5017	Connector.pfnResize = vgaR3DummyResize;
5018	Connector.pfnUpdateRect = vgaR3DummyUpdateRect;
5019
5020	int32_t cur_graphic_mode = -1;
5021
5022	bool fSavedRenderVRAM = pThis->fRenderVRAM;
5023	pThis->fRenderVRAM = true;
5024
5025	/*
5026	* Take the screenshot.
5027	*
5028	* The second parameter is 'false' because the current display state is being rendered to an
5029	* external buffer using a fake connector. That is if display is blanked, we expect a black
5030	* screen in the external buffer.
5031	* If there is a pending resize, the function will fail.
5032	*/
5033	rc = vgaR3UpdateDisplay(pDevIns, pThis, pThisCC, false /fUpdateAll/, true /fFailOnResize/,
5034	false /reset_dirty/, &Connector, &cur_graphic_mode);
5035
5036	pThis->fRenderVRAM = fSavedRenderVRAM;
5037
5038	if (rc == VINF_SUCCESS)
5039	{
5040	/*
5041	* Return the result.
5042	*/
5043	*ppbData = pbData;
5044	*pcbData = cbRequired;
5045	*pcx = Connector.cx;
5046	*pcy = Connector.cy;
5047	}
5048	else
5049	{
5050	/* If we do not return a success, then the data buffer must be freed. */
5051	RTMemFree(pbData);
5052	if (RT_SUCCESS_NP(rc))
5053	{
5054	AssertMsgFailed(("%Rrc\n", rc));
5055	rc = VERR_INTERNAL_ERROR_5;
5056	}
5057	}
5058	}
5059	else
5060	rc = VERR_NO_MEMORY;
5061	}
5062	else
5063	rc = VERR_NOT_SUPPORTED;
5064
5065	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5066
5067	LogFlow(("vgaR3PortTakeScreenshot: returns %Rrc (cbData=%d cx=%d cy=%d)\n", rc, pcbData, pcx, *pcy));
5068	return rc;
5069	}
5070
5071
5072	/**
5073	* @interface_method_impl{PDMIDISPLAYPORT,pfnFreeScreenshot}
5074	*/
5075	static DECLCALLBACK(void) vgaR3PortFreeScreenshot(PPDMIDISPLAYPORT pInterface, uint8_t *pbData)
5076	{
5077	NOREF(pInterface);
5078
5079	LogFlow(("vgaR3PortFreeScreenshot: pbData=%p\n", pbData));
5080
5081	RTMemFree(pbData);
5082	}
5083
5084
5085	/**
5086	* @interface_method_impl{PDMIDISPLAYPORT,pfnDisplayBlt}
5087	*/
5088	static DECLCALLBACK(int) vgaR3PortDisplayBlt(PPDMIDISPLAYPORT pInterface, const void *pvData,
5089	uint32_t x, uint32_t y, uint32_t cx, uint32_t cy)
5090	{
5091	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
5092	PPDMDEVINS pDevIns = pThisCC->pDevIns;
5093	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5094	PDMDEV_ASSERT_EMT(pDevIns);
5095	LogFlow(("vgaR3PortDisplayBlt: pvData=%p x=%d y=%d cx=%d cy=%d\n", pvData, x, y, cx, cy));
5096
5097	int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
5098	AssertRCReturn(rc, rc);
5099
5100	/*
5101	* Validate input.
5102	*/
5103	if ( pvData
5104	&& x < pThisCC->pDrv->cx
5105	&& cx <= pThisCC->pDrv->cx
5106	&& cx + x <= pThisCC->pDrv->cx
5107	&& y < pThisCC->pDrv->cy
5108	&& cy <= pThisCC->pDrv->cy
5109	&& cy + y <= pThisCC->pDrv->cy)
5110	{
5111	/*
5112	* Determine bytes per pixel in the destination buffer.
5113	*/
5114	size_t cbPixelDst = 0;
5115	switch (pThisCC->pDrv->cBits)
5116	{
5117	case 8:
5118	cbPixelDst = 1;
5119	break;
5120	case 15:
5121	case 16:
5122	cbPixelDst = 2;
5123	break;
5124	case 24:
5125	cbPixelDst = 3;
5126	break;
5127	case 32:
5128	cbPixelDst = 4;
5129	break;
5130	default:
5131	rc = VERR_INVALID_PARAMETER;
5132	break;
5133	}
5134	if (RT_SUCCESS(rc))
5135	{
5136	/*
5137	* The blitting loop.
5138	*/
5139	size_t cbLineSrc = cx * 4; /* 32 bits per pixel. */
5140	uint8_t pbSrc = (uint8_t )pvData;
5141	size_t cbLineDst = pThisCC->pDrv->cbScanline;
5142	uint8_t pbDst = pThisCC->pDrv->pbData + y cbLineDst + x * cbPixelDst;
5143	uint32_t cyLeft = cy;
5144	vga_draw_line_func pfnVgaDrawLine = vga_draw_line_table[VGA_DRAW_LINE32 4 + vgaR3GetDepthIndex(pThisCC->pDrv->cBits)];
5145	Assert(pfnVgaDrawLine);
5146	while (cyLeft-- > 0)
5147	{
5148	pfnVgaDrawLine(pThis, pThisCC, pbDst, pbSrc, cx);
5149	pbDst += cbLineDst;
5150	pbSrc += cbLineSrc;
5151	}
5152
5153	/*
5154	* Invalidate the area.
5155	*/
5156	pThisCC->pDrv->pfnUpdateRect(pThisCC->pDrv, x, y, cx, cy);
5157	}
5158	}
5159	else
5160	rc = VERR_INVALID_PARAMETER;
5161
5162	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5163
5164	LogFlow(("vgaR3PortDisplayBlt: returns %Rrc\n", rc));
5165	return rc;
5166	}
5167
5168
5169	/**
5170	* @interface_method_impl{PDMIDISPLAYPORT,pfnUpdateDisplayRect}
5171	*/
5172	static DECLCALLBACK(void) vgaR3PortUpdateDisplayRect(PPDMIDISPLAYPORT pInterface, int32_t x, int32_t y, uint32_t cx, uint32_t cy)
5173	{
5174	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
5175	PPDMDEVINS pDevIns = pThisCC->pDevIns;
5176	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5177	uint32_t v;
5178
5179	uint32_t cbPixelDst;
5180	uint32_t cbLineDst;
5181	uint8_t *pbDst;
5182
5183	uint32_t cbPixelSrc;
5184	uint32_t cbLineSrc;
5185	uint8_t *pbSrc;
5186
5187
5188	# ifdef DEBUG_sunlover
5189	LogFlow(("vgaR3PortUpdateDisplayRect: %d,%d %dx%d\n", x, y, cx, cy));
5190	# endif /* DEBUG_sunlover */
5191
5192	Assert(pInterface);
5193
5194	int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
5195	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc);
5196
5197	/* Check if there is something to do at all. */
5198	if (!pThis->fRenderVRAM)
5199	{
5200	/* The framebuffer uses the guest VRAM directly. */
5201	# ifdef DEBUG_sunlover
5202	LogFlow(("vgaR3PortUpdateDisplayRect: nothing to do fRender is false.\n"));
5203	# endif /* DEBUG_sunlover */
5204	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5205	return;
5206	}
5207
5208	Assert(pThisCC->pDrv);
5209	Assert(pThisCC->pDrv->pbData);
5210
5211	/* Correct negative x and y coordinates. */
5212	if (x < 0)
5213	{
5214	x += cx; /* Compute xRight which is also the new width. */
5215	cx = (x < 0) ? 0 : x;
5216	x = 0;
5217	}
5218
5219	if (y < 0)
5220	{
5221	y += cy; /* Compute yBottom, which is also the new height. */
5222	cy = (y < 0) ? 0 : y;
5223	y = 0;
5224	}
5225
5226	/* Also check if coords are greater than the display resolution. */
5227	if (x + cx > pThisCC->pDrv->cx)
5228	{
5229	// x < 0 is not possible here
5230	cx = pThisCC->pDrv->cx > (uint32_t)x? pThisCC->pDrv->cx - x: 0;
5231	}
5232
5233	if (y + cy > pThisCC->pDrv->cy)
5234	{
5235	// y < 0 is not possible here
5236	cy = pThisCC->pDrv->cy > (uint32_t)y? pThisCC->pDrv->cy - y: 0;
5237	}
5238
5239	# ifdef DEBUG_sunlover
5240	LogFlow(("vgaR3PortUpdateDisplayRect: %d,%d %dx%d (corrected coords)\n", x, y, cx, cy));
5241	# endif
5242
5243	/* Check if there is something to do at all. */
5244	if (cx == 0 \|\| cy == 0)
5245	{
5246	/* Empty rectangle. */
5247	# ifdef DEBUG_sunlover
5248	LogFlow(("vgaR3PortUpdateDisplayRect: nothing to do: %dx%d\n", cx, cy));
5249	#endif
5250	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5251	return;
5252	}
5253
5254	/** @todo This method should be made universal and not only for VBVA.
5255	* VGA_DRAW_LINE* must be selected and src/dst address calculation
5256	* changed.
5257	*/
5258
5259	/* Choose the rendering function. */
5260	switch(pThisCC->get_bpp(pThis))
5261	{
5262	default:
5263	case 0:
5264	/* A LFB mode is already disabled, but the callback is still called
5265	* by Display because VBVA buffer is being flushed.
5266	* Nothing to do, just return.
5267	*/
5268	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5269	return;
5270	case 8:
5271	v = VGA_DRAW_LINE8;
5272	break;
5273	case 15:
5274	v = VGA_DRAW_LINE15;
5275	break;
5276	case 16:
5277	v = VGA_DRAW_LINE16;
5278	break;
5279	case 24:
5280	v = VGA_DRAW_LINE24;
5281	break;
5282	case 32:
5283	v = VGA_DRAW_LINE32;
5284	break;
5285	}
5286
5287	vga_draw_line_func pfnVgaDrawLine = vga_draw_line_table[v 4 + vgaR3GetDepthIndex(pThisCC->pDrv->cBits)];
5288
5289	/* Compute source and destination addresses and pitches. */
5290	cbPixelDst = (pThisCC->pDrv->cBits + 7) / 8;
5291	cbLineDst = pThisCC->pDrv->cbScanline;
5292	pbDst = pThisCC->pDrv->pbData + y * cbLineDst + x * cbPixelDst;
5293
5294	cbPixelSrc = (pThisCC->get_bpp(pThis) + 7) / 8;
5295	uint32_t offSrc, u32Dummy;
5296	pThisCC->get_offsets(pThis, &cbLineSrc, &offSrc, &u32Dummy);
5297
5298	/* Assume that rendering is performed only on visible part of VRAM.
5299	* This is true because coordinates were verified.
5300	*/
5301	pbSrc = pThisCC->pbVRam;
5302	pbSrc += offSrc * 4 + y * cbLineSrc + x * cbPixelSrc;
5303
5304	/* Render VRAM to framebuffer. */
5305
5306	# ifdef DEBUG_sunlover
5307	LogFlow(("vgaR3PortUpdateDisplayRect: dst: %p, %d, %d. src: %p, %d, %d\n", pbDst, cbLineDst, cbPixelDst, pbSrc, cbLineSrc, cbPixelSrc));
5308	# endif
5309
5310	while (cy-- > 0)
5311	{
5312	pfnVgaDrawLine(pThis, pThisCC, pbDst, pbSrc, cx);
5313	pbDst += cbLineDst;
5314	pbSrc += cbLineSrc;
5315	}
5316
5317	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5318	# ifdef DEBUG_sunlover
5319	LogFlow(("vgaR3PortUpdateDisplayRect: completed.\n"));
5320	# endif
5321	}
5322
5323
5324	/**
5325	* @interface_method_impl{PDMIDISPLAYPORT,pfnCopyRect}
5326	*/
5327	static DECLCALLBACK(int)
5328	vgaR3PortCopyRect(PPDMIDISPLAYPORT pInterface,
5329	uint32_t cx, uint32_t cy,
5330	const uint8_t *pbSrc, int32_t xSrc, int32_t ySrc, uint32_t cxSrc, uint32_t cySrc,
5331	uint32_t cbSrcLine, uint32_t cSrcBitsPerPixel,
5332	uint8_t *pbDst, int32_t xDst, int32_t yDst, uint32_t cxDst, uint32_t cyDst,
5333	uint32_t cbDstLine, uint32_t cDstBitsPerPixel)
5334	{
5335	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
5336	PPDMDEVINS pDevIns = pThisCC->pDevIns;
5337	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5338	uint32_t v;
5339
5340	# ifdef DEBUG_sunlover
5341	LogFlow(("vgaR3PortCopyRect: %d,%d %dx%d -> %d,%d\n", xSrc, ySrc, cx, cy, xDst, yDst));
5342	# endif
5343
5344	Assert(pInterface);
5345	Assert(pThisCC->pDrv);
5346
5347	int32_t xSrcCorrected = xSrc;
5348	int32_t ySrcCorrected = ySrc;
5349	uint32_t cxCorrected = cx;
5350	uint32_t cyCorrected = cy;
5351
5352	/* Correct source coordinates to be within the source bitmap. */
5353	if (xSrcCorrected < 0)
5354	{
5355	xSrcCorrected += cxCorrected; /* Compute xRight which is also the new width. */
5356	cxCorrected = (xSrcCorrected < 0) ? 0 : xSrcCorrected;
5357	xSrcCorrected = 0;
5358	}
5359
5360	if (ySrcCorrected < 0)
5361	{
5362	ySrcCorrected += cyCorrected; /* Compute yBottom, which is also the new height. */
5363	cyCorrected = (ySrcCorrected < 0) ? 0 : ySrcCorrected;
5364	ySrcCorrected = 0;
5365	}
5366
5367	/* Also check if coords are greater than the display resolution. */
5368	if (xSrcCorrected + cxCorrected > cxSrc)
5369	{
5370	/* xSrcCorrected < 0 is not possible here */
5371	cxCorrected = cxSrc > (uint32_t)xSrcCorrected ? cxSrc - xSrcCorrected : 0;
5372	}
5373
5374	if (ySrcCorrected + cyCorrected > cySrc)
5375	{
5376	/* y < 0 is not possible here */
5377	cyCorrected = cySrc > (uint32_t)ySrcCorrected ? cySrc - ySrcCorrected : 0;
5378	}
5379
5380	# ifdef DEBUG_sunlover
5381	LogFlow(("vgaR3PortCopyRect: %d,%d %dx%d (corrected coords)\n", xSrcCorrected, ySrcCorrected, cxCorrected, cyCorrected));
5382	# endif
5383
5384	/* Check if there is something to do at all. */
5385	if (cxCorrected == 0 \|\| cyCorrected == 0)
5386	{
5387	/* Empty rectangle. */
5388	# ifdef DEBUG_sunlover
5389	LogFlow(("vgaPortUpdateDisplayRectEx: nothing to do: %dx%d\n", cxCorrected, cyCorrected));
5390	# endif
5391	return VINF_SUCCESS;
5392	}
5393
5394	/* Check that the corrected source rectangle is within the destination.
5395	* Note: source rectangle is adjusted, but the target must be large enough.
5396	*/
5397	if ( xDst < 0
5398	\|\| yDst < 0
5399	\|\| xDst + cxCorrected > cxDst
5400	\|\| yDst + cyCorrected > cyDst)
5401	{
5402	return VERR_INVALID_PARAMETER;
5403	}
5404
5405	int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
5406	AssertRCReturn(rc, rc);
5407
5408	/* This method only works if the VGA device is in a VBE mode or not paused VBVA mode.
5409	* VGA modes are reported to the caller by returning VERR_INVALID_STATE.
5410	*
5411	* If VBE_DISPI_ENABLED is set, then it is a VBE or VBE compatible VBVA mode. Both of them can be handled.
5412	*
5413	* If VBE_DISPI_ENABLED is clear, then it is either a VGA mode or a VBVA mode set by guest additions
5414	* which have VBVACAPS_USE_VBVA_ONLY capability.
5415	* When VBE_DISPI_ENABLED is being cleared and VBVACAPS_USE_VBVA_ONLY is not set (i.e. guest wants a VGA mode),
5416	* then VBVAOnVBEChanged makes sure that VBVA is paused.
5417	* That is a not paused VBVA means that the video mode can be handled even if VBE_DISPI_ENABLED is clear.
5418	*/
5419	if ( (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) == 0
5420	&& VBVAIsPaused(pThisCC)
5421	# ifdef VBOX_WITH_VMSVGA
5422	&& !pThis->svga.fEnabled
5423	# endif
5424	)
5425	{
5426	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5427	return VERR_INVALID_STATE;
5428	}
5429
5430	/* Choose the rendering function. */
5431	switch (cSrcBitsPerPixel)
5432	{
5433	default:
5434	case 0:
5435	/* Nothing to do, just return. */
5436	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5437	return VINF_SUCCESS;
5438	case 8:
5439	v = VGA_DRAW_LINE8;
5440	break;
5441	case 15:
5442	v = VGA_DRAW_LINE15;
5443	break;
5444	case 16:
5445	v = VGA_DRAW_LINE16;
5446	break;
5447	case 24:
5448	v = VGA_DRAW_LINE24;
5449	break;
5450	case 32:
5451	v = VGA_DRAW_LINE32;
5452	break;
5453	}
5454
5455	vga_draw_line_func pfnVgaDrawLine = vga_draw_line_table[v 4 + vgaR3GetDepthIndex(cDstBitsPerPixel)];
5456
5457	/* Compute source and destination addresses and pitches. */
5458	uint32_t cbPixelDst = (cDstBitsPerPixel + 7) / 8;
5459	uint32_t cbLineDst = cbDstLine;
5460	uint8_t pbDstCur = pbDst + yDst cbLineDst + xDst * cbPixelDst;
5461
5462	uint32_t cbPixelSrc = (cSrcBitsPerPixel + 7) / 8;
5463	uint32_t cbLineSrc = cbSrcLine;
5464	const uint8_t pbSrcCur = pbSrc + ySrcCorrected cbLineSrc + xSrcCorrected * cbPixelSrc;
5465
5466	# ifdef DEBUG_sunlover
5467	LogFlow(("vgaR3PortCopyRect: dst: %p, %d, %d. src: %p, %d, %d\n", pbDstCur, cbLineDst, cbPixelDst, pbSrcCur, cbLineSrc, cbPixelSrc));
5468	# endif
5469
5470	while (cyCorrected-- > 0)
5471	{
5472	pfnVgaDrawLine(pThis, pThisCC, pbDstCur, pbSrcCur, cxCorrected);
5473	pbDstCur += cbLineDst;
5474	pbSrcCur += cbLineSrc;
5475	}
5476
5477	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5478	# ifdef DEBUG_sunlover
5479	LogFlow(("vgaR3PortCopyRect: completed.\n"));
5480	# endif
5481	return VINF_SUCCESS;
5482	}
5483
5484
5485	/**
5486	* @interface_method_impl{PDMIDISPLAYPORT,pfnSetRenderVRAM}
5487	*/
5488	static DECLCALLBACK(void) vgaR3PortSetRenderVRAM(PPDMIDISPLAYPORT pInterface, bool fRender)
5489	{
5490	PVGASTATECC pThisCC = RT_FROM_MEMBER(pInterface, VGASTATECC, IPort);
5491	PPDMDEVINS pDevIns = pThisCC->pDevIns;
5492	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5493
5494	LogFlow(("vgaR3PortSetRenderVRAM: fRender = %d\n", fRender));
5495
5496	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY);
5497	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rcLock);
5498
5499	pThis->fRenderVRAM = fRender;
5500
5501	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect);
5502	}
5503
5504
5505	/**
5506	* @interface_method_impl{PDMIDISPLAYPORT,pfnReportHostCursorCapabilities}
5507	*/
5508	static DECLCALLBACK(void) vgaR3PortReportHostCursorCapabilities(PPDMIDISPLAYPORT pInterface, bool fSupportsRenderCursor,
5509	bool fSupportsMoveCursor)
5510	{
5511	RT_NOREF(pInterface, fSupportsRenderCursor, fSupportsMoveCursor);
5512	}
5513
5514
5515	/**
5516	* @interface_method_impl{PDMIDISPLAYPORT,pfnReportHostCursorPosition}
5517	*/
5518	static DECLCALLBACK(void) vgaR3PortReportHostCursorPosition(PPDMIDISPLAYPORT pInterface, uint32_t x, uint32_t y, bool fOutOfRange)
5519	{
5520	RT_NOREF(pInterface, x, y, fOutOfRange);
5521	}
5522
5523
5524	/**
5525	* @callback_method_impl{FNTMTIMERDEV, VGA Refresh Timer}
5526	*/
5527	static DECLCALLBACK(void) vgaR3TimerRefresh(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser)
5528	{
5529	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5530	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
5531	RT_NOREF(pvUser);
5532
5533	if (pThis->fScanLineCfg & VBVASCANLINECFG_ENABLE_VSYNC_IRQ)
5534	VBVARaiseIrq(pDevIns, pThis, pThisCC, HGSMIHOSTFLAGS_VSYNC);
5535
5536	if (pThisCC->pDrv)
5537	pThisCC->pDrv->pfnRefresh(pThisCC->pDrv);
5538
5539	if (pThis->cMilliesRefreshInterval)
5540	PDMDevHlpTimerSetMillies(pDevIns, hTimer, pThis->cMilliesRefreshInterval);
5541
5542	# ifdef VBOX_WITH_VIDEOHWACCEL
5543	vbvaTimerCb(pDevIns, pThis, pThisCC);
5544	# endif
5545
5546	# ifdef VBOX_WITH_VMSVGA
5547	/*
5548	* Call the VMSVGA FIFO poller/watchdog so we can wake up the thread if
5549	* there is work to be done.
5550	*/
5551	if (pThis->svga.fFIFOThreadSleeping && pThis->svga.fEnabled && pThis->svga.fConfigured)
5552	vmsvgaR3FifoWatchdogTimer(pDevIns, pThis, pThisCC);
5553	# endif
5554	}
5555
5556	# ifdef VBOX_WITH_VMSVGA
5557
5558	/**
5559	* Helper for VMSVGA.
5560	*/
5561	int vgaR3RegisterVRAMHandler(PPDMDEVINS pDevIns, PVGASTATE pThis, uint64_t cbFrameBuffer)
5562	{
5563	Assert(pThis->GCPhysVRAM != 0 && pThis->GCPhysVRAM != NIL_RTGCPHYS);
5564	int rc = PDMDevHlpMmio2ControlDirtyPageTracking(pDevIns, pThis->hMmio2VRam, true /fEnabled/);
5565	RT_NOREF(cbFrameBuffer);
5566	AssertRC(rc);
5567	return rc;
5568	}
5569
5570
5571	/**
5572	* Helper for VMSVGA.
5573	*/
5574	int vgaR3UnregisterVRAMHandler(PPDMDEVINS pDevIns, PVGASTATE pThis)
5575	{
5576	Assert(pThis->GCPhysVRAM != 0 && pThis->GCPhysVRAM != NIL_RTGCPHYS);
5577	int rc = PDMDevHlpMmio2ControlDirtyPageTracking(pDevIns, pThis->hMmio2VRam, false /fEnabled/);
5578	AssertRC(rc);
5579	return rc;
5580	}
5581
5582	# endif /* VBOX_WITH_VMSVGA */
5583
5584
5585	/* -=-=-=-=-=- Ring 3: PCI Device -=-=-=-=-=- */
5586
5587	/**
5588	* @callback_method_impl{FNPCIIOREGIONMAP, Mapping/unmapping the VRAM MMI2 region}
5589	*/
5590	static DECLCALLBACK(int) vgaR3PciIORegionVRamMapUnmap(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
5591	RTGCPHYS GCPhysAddress, RTGCPHYS cb, PCIADDRESSSPACE enmType)
5592	{
5593	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5594	Log(("vgaR3PciIORegionVRamMapUnmap: iRegion=%d GCPhysAddress=%RGp cb=%RGp enmType=%d\n", iRegion, GCPhysAddress, cb, enmType));
5595	RT_NOREF(pPciDev, cb);
5596
5597	# ifdef VBOX_WITH_VMSVGA
5598	AssertReturn( iRegion == pThis->pciRegions.iVRAM
5599	&& ( enmType == PCI_ADDRESS_SPACE_MEM_PREFETCH
5600	\|\| (enmType == PCI_ADDRESS_SPACE_MEM && pThis->fVMSVGAEnabled && pThis->fStateLoaded)), VERR_INTERNAL_ERROR);
5601	# else
5602	AssertReturn( iRegion == pThis->pciRegions.iVRAM
5603	&& enmType == PCI_ADDRESS_SPACE_MEM_PREFETCH, VERR_INTERNAL_ERROR);
5604	# endif
5605
5606	Assert(pPciDev == pDevIns->apPciDevs[0]);
5607
5608	/* Note! We cannot take the device lock here as that would create a lock order
5609	problem as the caller has taken the PDM lock prior to calling us. If
5610	we did, we will get trouble later when raising interrupts while owning
5611	the device lock (e.g. vmsvgaR3FifoLoop). */
5612
5613	int rc;
5614	if (GCPhysAddress != NIL_RTGCPHYS)
5615	{
5616	/*
5617	* Make sure the dirty page tracking state is up to date before mapping it.
5618	*/
5619	# ifdef VBOX_WITH_VMSVGA
5620	rc = PDMDevHlpMmio2ControlDirtyPageTracking(pDevIns, pThis->hMmio2VRam,
5621	!pThis->svga.fEnabled \|\|(pThis->svga.fEnabled && pThis->svga.fVRAMTracking));
5622	# else
5623	rc = PDMDevHlpMmio2ControlDirtyPageTracking(pDevIns, pThis->hMmio2VRam, true /fEnabled/);
5624	# endif
5625	AssertLogRelRC(rc);
5626
5627	/*
5628	* Map the VRAM.
5629	*/
5630	rc = PDMDevHlpMmio2Map(pDevIns, pThis->hMmio2VRam, GCPhysAddress);
5631	AssertLogRelRC(rc);
5632	if (RT_SUCCESS(rc))
5633	{
5634	pThis->GCPhysVRAM = GCPhysAddress;
5635	pThis->vbe_regs[VBE_DISPI_INDEX_FB_BASE_HI] = GCPhysAddress >> 16;
5636
5637	rc = VINF_PCI_MAPPING_DONE; /* caller doesn't care about any other status, so no problem overwriting error here */
5638	}
5639	}
5640	else
5641	{
5642	/*
5643	* Unmapping of the VRAM in progress (caller will do that).
5644	*/
5645	Assert(pThis->GCPhysVRAM);
5646	pThis->GCPhysVRAM = 0;
5647	rc = VINF_SUCCESS;
5648	/* NB: VBE_DISPI_INDEX_FB_BASE_HI is left unchanged here. */
5649	}
5650	return rc;
5651	}
5652
5653
5654	# ifdef VBOX_WITH_VMSVGA /* Currently not needed in the non-VMSVGA mode, but keeping it flexible for later. */
5655	/**
5656	* @interface_method_impl{PDMPCIDEV,pfnRegionLoadChangeHookR3}
5657	*/
5658	static DECLCALLBACK(int) vgaR3PciRegionLoadChangeHook(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
5659	uint64_t cbRegion, PCIADDRESSSPACE enmType,
5660	PFNPCIIOREGIONOLDSETTER pfnOldSetter, PFNPCIIOREGIONSWAP pfnSwapRegions)
5661	{
5662	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5663
5664	# ifdef VBOX_WITH_VMSVGA
5665	if (pThis->fVMSVGAEnabled)
5666	{
5667	/*
5668	* We messed up BAR order for the hybrid devices in 6.0 (see #9359).
5669	* It should have been compatible with the VBox VGA device and had the
5670	* VRAM region first and I/O second, but instead the I/O region ended
5671	* up first and VRAM second like the VMSVGA device.
5672	*
5673	* So, we have to detect that here and reconfigure the memory regions.
5674	* Region numbers are used in our (and the PCI bus') interfaction with
5675	* PGM, so PGM needs to be informed too.
5676	*/
5677	if ( iRegion == 0
5678	&& iRegion == pThis->pciRegions.iVRAM
5679	&& (enmType & PCI_ADDRESS_SPACE_IO))
5680	{
5681	LogRel(("VGA: Detected old BAR config, making adjustments.\n"));
5682
5683	/* Update the entries. */
5684	pThis->pciRegions.iIO = 0;
5685	pThis->pciRegions.iVRAM = 1;
5686
5687	/* Update PGM on the region number change so it won't barf when restoring state. */
5688	AssertLogRelReturn(pDevIns->CTX_SUFF(pHlp)->pfnMmio2ChangeRegionNo, VERR_VERSION_MISMATCH);
5689	int rc = pDevIns->CTX_SUFF(pHlp)->pfnMmio2ChangeRegionNo(pDevIns, pThis->hMmio2VRam, 1);
5690	AssertLogRelRCReturn(rc, rc);
5691	/** @todo Update the I/O port too, only currently we don't give a hoot about
5692	* the region number in the I/O port registrations so it can wait...
5693	* (Only visible in the 'info ioport' output IIRC). */
5694
5695	/* Update the calling PCI device. */
5696	AssertLogRelReturn(pfnSwapRegions, VERR_INTERNAL_ERROR_2);
5697	rc = pfnSwapRegions(pPciDev, 0, 1);
5698	AssertLogRelRCReturn(rc, rc);
5699
5700	return rc;
5701	}
5702
5703	/*
5704	* The VMSVGA changed the default FIFO size from 128KB to 2MB after 5.1.
5705	*/
5706	if (iRegion == pThis->pciRegions.iFIFO)
5707	{
5708	/* Make sure it's still 32-bit memory. Ignore fluxtuations in the prefetch flag. */
5709	AssertLogRelMsgReturn(!(enmType & (PCI_ADDRESS_SPACE_IO \| PCI_ADDRESS_SPACE_BAR64)), ("enmType=%#x\n", enmType),
5710	VERR_VGA_UNEXPECTED_PCI_REGION_LOAD_CHANGE);
5711
5712	/* If the size didn't change we're fine, so just return already. */
5713	if (cbRegion == pThis->svga.cbFIFO)
5714	return VINF_SUCCESS;
5715
5716	/* If the size is larger than the current configuration, refuse to load. */
5717	AssertLogRelMsgReturn(cbRegion <= pThis->svga.cbFIFOConfig,
5718	("cbRegion=%#RGp cbFIFOConfig=%#x cbFIFO=%#x\n",
5719	cbRegion, pThis->svga.cbFIFOConfig, pThis->svga.cbFIFO),
5720	VERR_SSM_LOAD_CONFIG_MISMATCH);
5721
5722	/* Adjust the size down. */
5723	int rc = PDMDevHlpMmio2Reduce(pDevIns, pThis->hMmio2VmSvgaFifo, cbRegion);
5724	AssertLogRelMsgRCReturn(rc,
5725	("cbRegion=%#RGp cbFIFOConfig=%#x cbFIFO=%#x: %Rrc\n",
5726	cbRegion, pThis->svga.cbFIFOConfig, pThis->svga.cbFIFO, rc),
5727	rc);
5728	pThis->svga.cbFIFO = cbRegion;
5729	return rc;
5730
5731	}
5732
5733	/*
5734	* VRAM used to be non-prefetchable till 6.1.0, so we end up here when restoring
5735	* states older than that with 6.1.0 and later. We just have to check that
5736	* the size and basic type matches, then return VINF_SUCCESS to ACK it.
5737	*/
5738	if (iRegion == pThis->pciRegions.iVRAM)
5739	{
5740	/* Make sure it's still 32-bit memory. Ignore fluxtuations in the prefetch flag. */
5741	AssertLogRelMsgReturn(!(enmType & (PCI_ADDRESS_SPACE_IO \| PCI_ADDRESS_SPACE_BAR64)), ("enmType=%#x\n", enmType),
5742	VERR_VGA_UNEXPECTED_PCI_REGION_LOAD_CHANGE);
5743	/* The size must be the same. */
5744	AssertLogRelMsgReturn(cbRegion == pThis->vram_size,
5745	("cbRegion=%#RGp vram_size=%#x\n", cbRegion, pThis->vram_size),
5746	VERR_SSM_LOAD_CONFIG_MISMATCH);
5747	return VINF_SUCCESS;
5748	}
5749
5750	/* Emulate callbacks for 5.1 and older saved states by recursion. */
5751	if (iRegion == UINT32_MAX)
5752	{
5753	int rc = vgaR3PciRegionLoadChangeHook(pDevIns, pPciDev, pThis->pciRegions.iFIFO, VMSVGA_FIFO_SIZE_OLD,
5754	PCI_ADDRESS_SPACE_MEM, NULL, NULL);
5755	if (RT_SUCCESS(rc))
5756	rc = pfnOldSetter(pPciDev, pThis->pciRegions.iFIFO, VMSVGA_FIFO_SIZE_OLD, PCI_ADDRESS_SPACE_MEM);
5757	return rc;
5758	}
5759	}
5760	# endif /* VBOX_WITH_VMSVGA */
5761
5762	return VERR_VGA_UNEXPECTED_PCI_REGION_LOAD_CHANGE;
5763	}
5764	# endif /* VBOX_WITH_VMSVGA */
5765
5766
5767	/* -=-=-=-=-=- Ring3: Misc Wrappers & Sidekicks -=-=-=-=-=- */
5768
5769	/**
5770	* Saves a important bits of the VGA device config.
5771	*
5772	* @param pHlp The device helpers (for SSM functions).
5773	* @param pThis The shared VGA instance data.
5774	* @param pSSM The saved state handle.
5775	*/
5776	static void vgaR3SaveConfig(PCPDMDEVHLPR3 pHlp, PVGASTATE pThis, PSSMHANDLE pSSM)
5777	{
5778	pHlp->pfnSSMPutU32(pSSM, pThis->vram_size);
5779	pHlp->pfnSSMPutU32(pSSM, pThis->cMonitors);
5780	}
5781
5782
5783	/**
5784	* @callback_method_impl{FNSSMDEVLIVEEXEC}
5785	*/
5786	static DECLCALLBACK(int) vgaR3LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
5787	{
5788	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5789	Assert(uPass == 0); NOREF(uPass);
5790	vgaR3SaveConfig(pDevIns->pHlpR3, pThis, pSSM);
5791	return VINF_SSM_DONT_CALL_AGAIN;
5792	}
5793
5794
5795	/**
5796	* @callback_method_impl{FNSSMDEVSAVEPREP}
5797	*/
5798	static DECLCALLBACK(int) vgaR3SavePrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5799	{
5800	# ifdef VBOX_WITH_VIDEOHWACCEL
5801	RT_NOREF(pSSM);
5802	return vboxVBVASaveStatePrep(pDevIns);
5803	# else
5804	RT_NOREF(pDevIns, pSSM);
5805	return VINF_SUCCESS;
5806	# endif
5807	}
5808
5809
5810	/**
5811	* @callback_method_impl{FNSSMDEVSAVEDONE}
5812	*/
5813	static DECLCALLBACK(int) vgaR3SaveDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5814	{
5815	# ifdef VBOX_WITH_VIDEOHWACCEL
5816	RT_NOREF(pSSM);
5817	return vboxVBVASaveStateDone(pDevIns);
5818	# else
5819	RT_NOREF(pDevIns, pSSM);
5820	return VINF_SUCCESS;
5821	# endif
5822	}
5823
5824
5825	/**
5826	* @callback_method_impl{FNSSMDEVSAVEEXEC}
5827	*/
5828	static DECLCALLBACK(int) vgaR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5829	{
5830	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5831	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
5832	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
5833
5834	# ifdef VBOX_WITH_VDMA
5835	vboxVDMASaveStateExecPrep(pThisCC->pVdma);
5836	# endif
5837
5838	vgaR3SaveConfig(pHlp, pThis, pSSM);
5839	vga_save(pHlp, pSSM, PDMDEVINS_2_DATA(pDevIns, PVGASTATE));
5840
5841	VGA_SAVED_STATE_PUT_MARKER(pSSM, 1);
5842	# ifdef VBOX_WITH_HGSMI
5843	pHlp->pfnSSMPutBool(pSSM, true);
5844	int rc = vboxVBVASaveStateExec(pDevIns, pSSM);
5845	# else
5846	int rc = pHlp->pfnSSMPutBool(pSSM, false);
5847	# endif
5848
5849	AssertRCReturn(rc, rc);
5850
5851	VGA_SAVED_STATE_PUT_MARKER(pSSM, 3);
5852	# ifdef VBOX_WITH_VDMA
5853	rc = pHlp->pfnSSMPutU32(pSSM, 1);
5854	AssertRCReturn(rc, rc);
5855	rc = vboxVDMASaveStateExecPerform(pHlp, pThisCC->pVdma, pSSM);
5856	# else
5857	rc = pHlp->pfnSSMPutU32(pSSM, 0);
5858	# endif
5859	AssertRCReturn(rc, rc);
5860
5861	# ifdef VBOX_WITH_VDMA
5862	vboxVDMASaveStateExecDone(pThisCC->pVdma);
5863	# endif
5864
5865	VGA_SAVED_STATE_PUT_MARKER(pSSM, 5);
5866	# ifdef VBOX_WITH_VMSVGA
5867	if (pThis->fVMSVGAEnabled)
5868	{
5869	rc = vmsvgaR3SaveExec(pDevIns, pSSM);
5870	AssertRCReturn(rc, rc);
5871	}
5872	# endif
5873	VGA_SAVED_STATE_PUT_MARKER(pSSM, 6);
5874
5875	return rc;
5876	}
5877
5878
5879	/**
5880	* @callback_method_impl{FNSSMDEVLOADPREP}
5881	*/
5882	static DECLCALLBACK(int) vgaR3LoadPrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5883	{
5884	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5885	RT_NOREF(pSSM);
5886	pThis->fStateLoaded = true;
5887	return VINF_SUCCESS;
5888	}
5889
5890
5891	/**
5892	* @callback_method_impl{FNSSMDEVLOADEXEC}
5893	*/
5894	static DECLCALLBACK(int) vgaR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
5895	{
5896	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5897	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
5898	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
5899	int rc;
5900
5901	pThis->fStateLoaded = true;
5902
5903	if (uVersion < VGA_SAVEDSTATE_VERSION_ANCIENT \|\| uVersion > VGA_SAVEDSTATE_VERSION)
5904	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
5905
5906	if (uVersion > VGA_SAVEDSTATE_VERSION_HGSMI)
5907	{
5908	/* Check the config */
5909	uint32_t cbVRam;
5910	rc = pHlp->pfnSSMGetU32(pSSM, &cbVRam);
5911	AssertRCReturn(rc, rc);
5912	if (pThis->vram_size != cbVRam)
5913	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("VRAM size changed: config=%#x state=%#x"), pThis->vram_size, cbVRam);
5914
5915	uint32_t cMonitors;
5916	rc = pHlp->pfnSSMGetU32(pSSM, &cMonitors);
5917	AssertRCReturn(rc, rc);
5918	if (pThis->cMonitors != cMonitors)
5919	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("Monitor count changed: config=%u state=%u"), pThis->cMonitors, cMonitors);
5920	}
5921
5922	if (uPass == SSM_PASS_FINAL)
5923	{
5924	rc = vga_load(pHlp, pSSM, pThis, uVersion);
5925	if (RT_FAILURE(rc))
5926	return rc;
5927
5928	/*
5929	* Restore the HGSMI state, if present.
5930	*/
5931	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 1);
5932	bool fWithHgsmi = uVersion == VGA_SAVEDSTATE_VERSION_HGSMI;
5933	if (uVersion > VGA_SAVEDSTATE_VERSION_HGSMI)
5934	{
5935	rc = pHlp->pfnSSMGetBool(pSSM, &fWithHgsmi);
5936	AssertRCReturn(rc, rc);
5937	}
5938	if (fWithHgsmi)
5939	{
5940	# ifdef VBOX_WITH_HGSMI
5941	rc = vboxVBVALoadStateExec(pDevIns, pSSM, uVersion);
5942	AssertRCReturn(rc, rc);
5943	# else
5944	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("HGSMI is not compiled in, but it is present in the saved state"));
5945	# endif
5946	}
5947
5948	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 3);
5949	if (uVersion >= VGA_SAVEDSTATE_VERSION_3D)
5950	{
5951	uint32_t u32;
5952	rc = pHlp->pfnSSMGetU32(pSSM, &u32);
5953	if (u32)
5954	{
5955	# ifdef VBOX_WITH_VDMA
5956	if (u32 == 1)
5957	{
5958	rc = vboxVDMASaveLoadExecPerform(pHlp, pThisCC->pVdma, pSSM, uVersion);
5959	AssertRCReturn(rc, rc);
5960	}
5961	else
5962	# endif
5963	{
5964	LogRel(("invalid CmdVbva version info\n"));
5965	return VERR_VERSION_MISMATCH;
5966	}
5967	}
5968	}
5969
5970	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 5);
5971	# ifdef VBOX_WITH_VMSVGA
5972	if (pThis->fVMSVGAEnabled)
5973	{
5974	rc = vmsvgaR3LoadExec(pDevIns, pSSM, uVersion, uPass);
5975	AssertRCReturn(rc, rc);
5976	}
5977	# endif
5978	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 6);
5979	}
5980	return VINF_SUCCESS;
5981	}
5982
5983
5984	/**
5985	* @@callback_method_impl{FNSSMDEVLOADDONE}
5986	*/
5987	static DECLCALLBACK(int) vgaR3LoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5988	{
5989	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
5990	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
5991	int rc;
5992	RT_NOREF(pThisCC, pThis, pSSM);
5993
5994	# ifdef VBOX_WITH_HGSMI
5995	rc = vboxVBVALoadStateDone(pDevIns);
5996	AssertRCReturn(rc, rc);
5997	# ifdef VBOX_WITH_VDMA
5998	rc = vboxVDMASaveLoadDone(pThisCC->pVdma);
5999	AssertRCReturn(rc, rc);
6000	# endif
6001	/* Now update the current VBVA state which depends on VBE registers. vboxVBVALoadStateDone cleared the state. */
6002	VBVAOnVBEChanged(pThis, pThisCC);
6003	# endif
6004	# ifdef VBOX_WITH_VMSVGA
6005	if (pThis->fVMSVGAEnabled)
6006	{
6007	rc = vmsvgaR3LoadDone(pDevIns);
6008	AssertRCReturn(rc, rc);
6009	}
6010	# endif
6011	return VINF_SUCCESS;
6012	}
6013
6014
6015	/* -=-=-=-=-=- Ring 3: Device callbacks -=-=-=-=-=- */
6016
6017	/**
6018	* @interface_method_impl{PDMDEVREG,pfnResume}
6019	*/
6020	static DECLCALLBACK(void) vgaR3Resume(PPDMDEVINS pDevIns)
6021	{
6022	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6023	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6024	VBVAOnResume(pDevIns, pThis, pThisCC);
6025	}
6026
6027
6028	/**
6029	* @interface_method_impl{PDMDEVREG,pfnReset}
6030	*/
6031	static DECLCALLBACK(void) vgaR3Reset(PPDMDEVINS pDevIns)
6032	{
6033	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6034	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6035	char *pchStart;
6036	char *pchEnd;
6037	LogFlow(("vgaReset\n"));
6038
6039	if (pThisCC->pVdma)
6040	vboxVDMAReset(pThisCC->pVdma);
6041
6042	# ifdef VBOX_WITH_VMSVGA
6043	if (pThis->fVMSVGAEnabled)
6044	vmsvgaR3Reset(pDevIns);
6045	# endif
6046
6047	# ifdef VBOX_WITH_HGSMI
6048	VBVAReset(pDevIns, pThis, pThisCC);
6049	# endif
6050
6051
6052	/* Clear the VRAM ourselves. */
6053	if (pThisCC->pbVRam && pThis->vram_size)
6054	memset(pThisCC->pbVRam, 0, pThis->vram_size);
6055
6056	/*
6057	* Zero most of it.
6058	*
6059	* Unlike vga_reset we're leaving out a few members which we believe
6060	* must remain unchanged....
6061	*/
6062	/* 1st part. */
6063	pchStart = (char *)&pThis->latch;
6064	pchEnd = (char *)&pThis->invalidated_y_table;
6065	memset(pchStart, 0, pchEnd - pchStart);
6066
6067	/* 2nd part. */
6068	pchStart = (char *)&pThis->last_palette;
6069	pchEnd = (char *)&pThis->u32Marker;
6070	memset(pchStart, 0, pchEnd - pchStart);
6071
6072
6073	/*
6074	* Restore and re-init some bits.
6075	*/
6076	pThisCC->get_bpp = vgaR3GetBpp;
6077	pThisCC->get_offsets = vgaR3GetOffsets;
6078	pThisCC->get_resolution = vgaR3GetResolution;
6079	pThis->graphic_mode = -1; /* Force full update. */
6080	# ifdef CONFIG_BOCHS_VBE
6081	pThis->vbe_regs[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID0;
6082	pThis->vbe_regs[VBE_DISPI_INDEX_VBOX_VIDEO] = 0;
6083	pThis->vbe_regs[VBE_DISPI_INDEX_FB_BASE_HI] = pThis->GCPhysVRAM >> 16;
6084	pThis->vbe_bank_max = (pThis->vram_size >> 16) - 1;
6085	# endif /* CONFIG_BOCHS_VBE */
6086	pThis->st00 = 0x70; /* Static except for bit 4. */
6087
6088	/*
6089	* Reset the LFB mapping.
6090	*/
6091	if ( ( pDevIns->fRCEnabled
6092	\|\| pDevIns->fR0Enabled)
6093	&& pThis->GCPhysVRAM != 0
6094	&& pThis->GCPhysVRAM != NIL_RTGCPHYS)
6095	{
6096	/** @todo r=bird: This used to be a PDMDevHlpPGMHandlerPhysicalReset call.
6097	* Not quite sure if it was/is needed. Besides, where do we reset the
6098	* dirty bitmap (bmDirtyBitmap)? */
6099	int rc = PDMDevHlpMmio2ResetDirtyBitmap(pDevIns, pThis->hMmio2VRam);
6100	AssertRC(rc);
6101	}
6102	if (pThis->fRemappedVGA)
6103	{
6104	PDMDevHlpMmioResetRegion(pDevIns, pThis->hMmioLegacy);
6105	STAM_COUNTER_INC(&pThis->StatMapReset);
6106	vgaResetRemapped(pThis);
6107	}
6108
6109	/*
6110	* Reset the logo data.
6111	*/
6112	pThisCC->LogoCommand = LOGO_CMD_NOP;
6113	pThisCC->offLogoData = 0;
6114
6115	/* notify port handler */
6116	if (pThisCC->pDrv)
6117	{
6118	PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); /* hack around lock order issue. */
6119
6120	pThisCC->pDrv->pfnReset(pThisCC->pDrv);
6121	pThisCC->pDrv->pfnVBVAMousePointerShape(pThisCC->pDrv, false, false, 0, 0, 0, 0, NULL);
6122
6123	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_IGNORED);
6124	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rcLock);
6125	}
6126
6127	/* Reset latched access mask. */
6128	pThis->uMaskLatchAccess = 0x3ff;
6129	pThis->cLatchAccesses = 0;
6130	pThis->u64LastLatchedAccess = 0;
6131	pThis->iMask = 0;
6132
6133	/* Reset retrace emulation. */
6134	memset(&pThis->retrace_state, 0, sizeof(pThis->retrace_state));
6135	}
6136
6137
6138	/**
6139	* @interface_method_impl{PDMDEVREG,pfnPowerOn}
6140	*/
6141	static DECLCALLBACK(void) vgaR3PowerOn(PPDMDEVINS pDevIns)
6142	{
6143	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6144	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6145	# ifdef VBOX_WITH_VMSVGA
6146	vmsvgaR3PowerOn(pDevIns);
6147	# endif
6148	VBVAOnResume(pDevIns, pThis, pThisCC);
6149	}
6150
6151
6152	/**
6153	* @interface_method_impl{PDMDEVREG,pfnPowerOff}
6154	*/
6155	static DECLCALLBACK(void) vgaR3PowerOff(PPDMDEVINS pDevIns)
6156	{
6157	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6158	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6159	RT_NOREF(pThis, pThisCC);
6160	# ifdef VBOX_WITH_VMSVGA
6161	vmsvgaR3PowerOff(pDevIns);
6162	# endif
6163	}
6164
6165
6166	/**
6167	* @interface_method_impl{PDMDEVREG,pfnRelocate}
6168	*/
6169	static DECLCALLBACK(void) vgaR3Relocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
6170	{
6171	# ifdef VBOX_WITH_RAW_MODE_KEEP
6172	if (offDelta)
6173	{
6174	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6175	LogFlow(("vgaRelocate: offDelta = %08X\n", offDelta));
6176
6177	pThisRC->pbVRam += offDelta;
6178	pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
6179	}
6180	# else
6181	RT_NOREF(pDevIns, offDelta);
6182	# endif
6183	}
6184
6185
6186	/**
6187	* @interface_method_impl{PDMDEVREG,pfnAttach}
6188	*
6189	* This is like plugging in the monitor after turning on the PC.
6190	*/
6191	static DECLCALLBACK(int) vgaAttach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
6192	{
6193	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6194	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6195
6196	RT_NOREF(pThis);
6197
6198	AssertMsgReturn(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG,
6199	("VGA device does not support hotplugging\n"),
6200	VERR_INVALID_PARAMETER);
6201
6202	switch (iLUN)
6203	{
6204	/* LUN #0: Display port. */
6205	case 0:
6206	{
6207	int rc = PDMDevHlpDriverAttach(pDevIns, iLUN, &pThisCC->IBase, &pThisCC->pDrvBase, "Display Port");
6208	if (RT_SUCCESS(rc))
6209	{
6210	pThisCC->pDrv = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMIDISPLAYCONNECTOR);
6211	if (pThisCC->pDrv)
6212	{
6213	/* pThisCC->pDrv->pbData can be NULL when there is no framebuffer. */
6214	if ( pThisCC->pDrv->pfnRefresh
6215	&& pThisCC->pDrv->pfnResize
6216	&& pThisCC->pDrv->pfnUpdateRect)
6217	rc = VINF_SUCCESS;
6218	else
6219	{
6220	Assert(pThisCC->pDrv->pfnRefresh);
6221	Assert(pThisCC->pDrv->pfnResize);
6222	Assert(pThisCC->pDrv->pfnUpdateRect);
6223	pThisCC->pDrv = NULL;
6224	pThisCC->pDrvBase = NULL;
6225	rc = VERR_INTERNAL_ERROR;
6226	}
6227	# ifdef VBOX_WITH_VIDEOHWACCEL
6228	if(rc == VINF_SUCCESS)
6229	{
6230	rc = vbvaVHWAConstruct(pDevIns, pThis, pThisCC);
6231	if (rc != VERR_NOT_IMPLEMENTED)
6232	AssertRC(rc);
6233	}
6234	# endif
6235	}
6236	else
6237	{
6238	AssertMsgFailed(("LUN #0 doesn't have a display connector interface! rc=%Rrc\n", rc));
6239	pThisCC->pDrvBase = NULL;
6240	rc = VERR_PDM_MISSING_INTERFACE;
6241	}
6242	}
6243	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
6244	{
6245	Log(("%s/%d: warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance));
6246	rc = VINF_SUCCESS;
6247	}
6248	else
6249	AssertLogRelMsgFailed(("Failed to attach LUN #0! rc=%Rrc\n", rc));
6250	return rc;
6251	}
6252
6253	default:
6254	AssertMsgFailed(("Invalid LUN #%d\n", iLUN));
6255	return VERR_PDM_NO_SUCH_LUN;
6256	}
6257	}
6258
6259
6260	/**
6261	* @interface_method_impl{PDMDEVREG,pfnDetach}
6262	*
6263	* This is like unplugging the monitor while the PC is still running.
6264	*/
6265	static DECLCALLBACK(void) vgaDetach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
6266	{
6267	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6268	AssertMsg(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG, ("VGA device does not support hotplugging\n"));
6269	RT_NOREF(fFlags);
6270
6271	/*
6272	* Reset the interfaces and update the controller state.
6273	*/
6274	switch (iLUN)
6275	{
6276	/* LUN #0: Display port. */
6277	case 0:
6278	pThisCC->pDrv = NULL;
6279	pThisCC->pDrvBase = NULL;
6280	break;
6281
6282	default:
6283	AssertMsgFailed(("Invalid LUN #%d\n", iLUN));
6284	break;
6285	}
6286	}
6287
6288
6289	/**
6290	* @interface_method_impl{PDMDEVREG,pfnDestruct}
6291	*/
6292	static DECLCALLBACK(int) vgaR3Destruct(PPDMDEVINS pDevIns)
6293	{
6294	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
6295	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6296	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6297	LogFlow(("vgaR3Destruct:\n"));
6298
6299	# ifdef VBOX_WITH_VDMA
6300	if (pThisCC->pVdma)
6301	vboxVDMADestruct(pThisCC->pVdma);
6302	# endif
6303
6304	# ifdef VBOX_WITH_VMSVGA
6305	if (pThis->fVMSVGAEnabled)
6306	vmsvgaR3Destruct(pDevIns);
6307	# endif
6308
6309	# ifdef VBOX_WITH_HGSMI
6310	VBVADestroy(pThisCC);
6311	# endif
6312
6313	/*
6314	* Free MM heap pointers.
6315	*/
6316	if (pThisCC->pbVBEExtraData)
6317	{
6318	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pbVBEExtraData);
6319	pThisCC->pbVBEExtraData = NULL;
6320	}
6321	if (pThisCC->pbVgaBios)
6322	{
6323	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pbVgaBios);
6324	pThisCC->pbVgaBios = NULL;
6325	}
6326
6327	if (pThisCC->pszVgaBiosFile)
6328	{
6329	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pszVgaBiosFile);
6330	pThisCC->pszVgaBiosFile = NULL;
6331	}
6332
6333	if (pThisCC->pszLogoFile)
6334	{
6335	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pszLogoFile);
6336	pThisCC->pszLogoFile = NULL;
6337	}
6338
6339	if (pThisCC->pbLogo)
6340	{
6341	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pbLogo);
6342	pThisCC->pbLogo = NULL;
6343	}
6344
6345	# if defined(VBOX_WITH_VIDEOHWACCEL) \|\| defined(VBOX_WITH_VDMA) \|\| defined(VBOX_WITH_WDDM)
6346	PDMDevHlpCritSectDelete(pDevIns, &pThis->CritSectIRQ);
6347	# endif
6348	PDMDevHlpCritSectDelete(pDevIns, &pThis->CritSect);
6349	return VINF_SUCCESS;
6350	}
6351
6352
6353	/**
6354	* Adjust VBE mode information
6355	*
6356	* Depending on the configured VRAM size, certain parts of VBE mode
6357	* information must be updated.
6358	*
6359	* @param pThis The device instance data.
6360	* @param pMode The mode information structure.
6361	*/
6362	static void vgaR3AdjustModeInfo(PVGASTATE pThis, ModeInfoListItem *pMode)
6363	{
6364	/* For 4bpp modes, the planes are "stacked" on top of each other. */
6365	unsigned bpl = pMode->info.BytesPerScanLine * pMode->info.NumberOfPlanes;
6366	/* The "number of image pages" is really the max page index... */
6367	unsigned maxPage = pThis->vram_size / (pMode->info.YResolution * bpl) - 1;
6368	if (maxPage > 255)
6369	maxPage = 255; /* 8-bit value. */
6370	pMode->info.NumberOfImagePages = maxPage;
6371	pMode->info.LinNumberOfPages = maxPage;
6372	}
6373
6374
6375	/**
6376	* @interface_method_impl{PDMDEVREG,pfnConstruct}
6377	*/
6378	static DECLCALLBACK(int) vgaR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
6379	{
6380	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
6381	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
6382	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
6383	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
6384	int rc;
6385	unsigned i;
6386	uint32_t cCustomModes;
6387	uint32_t cyReduction;
6388	uint32_t cbPitch;
6389	PVBEHEADER pVBEDataHdr;
6390	ModeInfoListItem *pCurMode;
6391	unsigned cb;
6392
6393	Assert(iInstance == 0);
6394
6395	/*
6396	* Init static data.
6397	*/
6398	static bool s_fExpandDone = false;
6399	if (!s_fExpandDone)
6400	{
6401	s_fExpandDone = true;
6402	vgaR3InitExpand();
6403	}
6404
6405	/*
6406	* Validate configuration.
6407	*/
6408	static const char s_szMscWorkaround[] = "VRamSize"
6409	"\|MonitorCount"
6410	"\|FadeIn"
6411	"\|FadeOut"
6412	"\|LogoTime"
6413	"\|LogoFile"
6414	"\|ShowBootMenu"
6415	"\|BiosRom"
6416	"\|RealRetrace"
6417	"\|CustomVideoModes"
6418	"\|HeightReduction"
6419	"\|CustomVideoMode1"
6420	"\|CustomVideoMode2"
6421	"\|CustomVideoMode3"
6422	"\|CustomVideoMode4"
6423	"\|CustomVideoMode5"
6424	"\|CustomVideoMode6"
6425	"\|CustomVideoMode7"
6426	"\|CustomVideoMode8"
6427	"\|CustomVideoMode9"
6428	"\|CustomVideoMode10"
6429	"\|CustomVideoMode11"
6430	"\|CustomVideoMode12"
6431	"\|CustomVideoMode13"
6432	"\|CustomVideoMode14"
6433	"\|CustomVideoMode15"
6434	"\|CustomVideoMode16"
6435	"\|MaxBiosXRes"
6436	"\|MaxBiosYRes"
6437	# ifdef VBOX_WITH_VMSVGA
6438	"\|VMSVGAEnabled"
6439	"\|VMSVGA10"
6440	"\|VMSVGAPciId"
6441	"\|VMSVGAPciBarLayout"
6442	"\|VMSVGAFifoSize"
6443	# endif
6444	# ifdef VBOX_WITH_VMSVGA3D
6445	"\|VMSVGA3dEnabled"
6446	"\|VMSVGA3dOverlayEnabled"
6447	# endif
6448	"\|SuppressNewYearSplash"
6449	"\|3DEnabled";
6450
6451	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, s_szMscWorkaround, "");
6452
6453	/*
6454	* Init state data.
6455	*/
6456	rc = pHlp->pfnCFGMQueryU32Def(pCfg, "VRamSize", &pThis->vram_size, VGA_VRAM_DEFAULT);
6457	AssertLogRelRCReturn(rc, rc);
6458	if (pThis->vram_size > VGA_VRAM_MAX)
6459	return PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
6460	"VRamSize is too large, %#x, max %#x", pThis->vram_size, VGA_VRAM_MAX);
6461	if (pThis->vram_size < VGA_VRAM_MIN)
6462	return PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
6463	"VRamSize is too small, %#x, max %#x", pThis->vram_size, VGA_VRAM_MIN);
6464	if (pThis->vram_size & (_256K - 1)) /* Make sure there are no partial banks even in planar modes. */
6465	return PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
6466	"VRamSize is not a multiple of 256K (%#x)", pThis->vram_size);
6467
6468	rc = pHlp->pfnCFGMQueryU32Def(pCfg, "MonitorCount", &pThis->cMonitors, 1);
6469	AssertLogRelRCReturn(rc, rc);
6470
6471	Log(("VGA: VRamSize=%#x fGCenabled=%RTbool fR0Enabled=%RTbool\n", pThis->vram_size, pDevIns->fRCEnabled, pDevIns->fR0Enabled));
6472
6473	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "3DEnabled", &pThis->f3DEnabled, false);
6474	AssertLogRelRCReturn(rc, rc);
6475	Log(("VGA: f3DEnabled=%RTbool\n", pThis->f3DEnabled));
6476
6477	# ifdef VBOX_WITH_VMSVGA
6478	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "VMSVGAEnabled", &pThis->fVMSVGAEnabled, false);
6479	AssertLogRelRCReturn(rc, rc);
6480	Log(("VMSVGA: VMSVGAEnabled = %d\n", pThis->fVMSVGAEnabled));
6481
6482	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "VMSVGA10", &pThis->fVMSVGA10, true);
6483	AssertLogRelRCReturn(rc, rc);
6484	Log(("VMSVGA: VMSVGA10 = %d\n", pThis->fVMSVGA10));
6485
6486	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "VMSVGAPciId", &pThis->fVMSVGAPciId, false);
6487	AssertLogRelRCReturn(rc, rc);
6488	Log(("VMSVGA: VMSVGAPciId = %d\n", pThis->fVMSVGAPciId));
6489
6490	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "VMSVGAPciBarLayout", &pThis->fVMSVGAPciBarLayout, pThis->fVMSVGAPciId);
6491	AssertLogRelRCReturn(rc, rc);
6492	Log(("VMSVGA: VMSVGAPciBarLayout = %d\n", pThis->fVMSVGAPciBarLayout));
6493
6494	rc = pHlp->pfnCFGMQueryU32Def(pCfg, "VMSVGAFifoSize", &pThis->svga.cbFIFO, VMSVGA_FIFO_SIZE);
6495	AssertLogRelRCReturn(rc, rc);
6496	AssertLogRelMsgReturn(pThis->svga.cbFIFO >= _128K, ("cbFIFO=%#x\n", pThis->svga.cbFIFO), VERR_OUT_OF_RANGE);
6497	AssertLogRelMsgReturn(pThis->svga.cbFIFO <= _16M, ("cbFIFO=%#x\n", pThis->svga.cbFIFO), VERR_OUT_OF_RANGE);
6498	AssertLogRelMsgReturn(RT_IS_POWER_OF_TWO(pThis->svga.cbFIFO), ("cbFIFO=%#x\n", pThis->svga.cbFIFO), VERR_NOT_POWER_OF_TWO);
6499	pThis->svga.cbFIFOConfig = pThis->svga.cbFIFO;
6500	Log(("VMSVGA: VMSVGAFifoSize = %#x (%'u)\n", pThis->svga.cbFIFO, pThis->svga.cbFIFO));
6501	# endif
6502	# ifdef VBOX_WITH_VMSVGA3D
6503	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "VMSVGA3dEnabled", &pThis->svga.f3DEnabled, false);
6504	AssertLogRelRCReturn(rc, rc);
6505	Log(("VMSVGA: VMSVGA3dEnabled = %d\n", pThis->svga.f3DEnabled));
6506
6507	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "VMSVGA3dOverlayEnabled", &pThis->svga.f3DOverlayEnabled, false);
6508	AssertLogRelRCReturn(rc, rc);
6509	Log(("VMSVGA: VMSVGA3dOverlayEnabled = %d\n", pThis->svga.f3DOverlayEnabled));
6510	# endif
6511
6512	# ifdef VBOX_WITH_VMSVGA
6513	if (pThis->fVMSVGAPciBarLayout)
6514	{
6515	pThis->pciRegions.iIO = 0;
6516	pThis->pciRegions.iVRAM = 1;
6517	}
6518	else
6519	{
6520	pThis->pciRegions.iVRAM = 0;
6521	pThis->pciRegions.iIO = 1;
6522	}
6523	pThis->pciRegions.iFIFO = 2;
6524	# else
6525	pThis->pciRegions.iVRAM = 0;
6526	# endif
6527
6528	pThisCC->pDevIns = pDevIns;
6529
6530	vgaR3Reset(pDevIns);
6531
6532	/* The PCI devices configuration. */
6533	PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0];
6534	PDMPCIDEV_ASSERT_VALID(pDevIns, pPciDev);
6535
6536	# ifdef VBOX_WITH_VMSVGA
6537	if (pThis->fVMSVGAEnabled)
6538	{
6539	/* Extend our VGA device with VMWare SVGA functionality. */
6540	if (pThis->fVMSVGAPciId)
6541	{
6542	PDMPciDevSetVendorId(pPciDev, PCI_VENDOR_ID_VMWARE);
6543	PDMPciDevSetDeviceId(pPciDev, PCI_DEVICE_ID_VMWARE_SVGA2);
6544	}
6545	else
6546	{
6547	PDMPciDevSetVendorId(pPciDev, 0x80ee); /* PCI vendor, just a free bogus value */
6548	PDMPciDevSetDeviceId(pPciDev, 0xbeef);
6549	}
6550	PDMPciDevSetSubSystemVendorId(pPciDev, PCI_VENDOR_ID_VMWARE);
6551	PDMPciDevSetSubSystemId(pPciDev, PCI_DEVICE_ID_VMWARE_SVGA2);
6552	}
6553	else
6554	# endif /* VBOX_WITH_VMSVGA */
6555	{
6556	PDMPciDevSetVendorId(pPciDev, 0x80ee); /* PCI vendor, just a free bogus value */
6557	PDMPciDevSetDeviceId(pPciDev, 0xbeef);
6558	}
6559	PDMPciDevSetClassSub(pPciDev, 0x00); /* VGA controller */
6560	PDMPciDevSetClassBase(pPciDev, 0x03);
6561	PDMPciDevSetHeaderType(pPciDev, 0x00);
6562	# if defined(VBOX_WITH_HGSMI) && (defined(VBOX_WITH_VIDEOHWACCEL) \|\| defined(VBOX_WITH_VDMA) \|\| defined(VBOX_WITH_WDDM))
6563	PDMPciDevSetInterruptPin(pPciDev, 1);
6564	# endif
6565
6566	/* the interfaces. */
6567	pThisCC->IBase.pfnQueryInterface = vgaR3PortQueryInterface;
6568
6569	pThisCC->IPort.pfnUpdateDisplay = vgaR3PortUpdateDisplay;
6570	pThisCC->IPort.pfnUpdateDisplayAll = vgaR3PortUpdateDisplayAll;
6571	pThisCC->IPort.pfnQueryVideoMode = vgaR3PortQueryVideoMode;
6572	pThisCC->IPort.pfnSetRefreshRate = vgaR3PortSetRefreshRate;
6573	pThisCC->IPort.pfnTakeScreenshot = vgaR3PortTakeScreenshot;
6574	pThisCC->IPort.pfnFreeScreenshot = vgaR3PortFreeScreenshot;
6575	pThisCC->IPort.pfnDisplayBlt = vgaR3PortDisplayBlt;
6576	pThisCC->IPort.pfnUpdateDisplayRect = vgaR3PortUpdateDisplayRect;
6577	pThisCC->IPort.pfnCopyRect = vgaR3PortCopyRect;
6578	pThisCC->IPort.pfnSetRenderVRAM = vgaR3PortSetRenderVRAM;
6579	pThisCC->IPort.pfnSetViewport = NULL;
6580	pThisCC->IPort.pfnReportMonitorPositions = NULL;
6581	# ifdef VBOX_WITH_VMSVGA
6582	if (pThis->fVMSVGAEnabled)
6583	{
6584	pThisCC->IPort.pfnSetViewport = vmsvgaR3PortSetViewport;
6585	pThisCC->IPort.pfnReportMonitorPositions = vmsvgaR3PortReportMonitorPositions;
6586	}
6587	# endif
6588	pThisCC->IPort.pfnSendModeHint = vbvaR3PortSendModeHint;
6589	pThisCC->IPort.pfnReportHostCursorCapabilities = vgaR3PortReportHostCursorCapabilities;
6590	pThisCC->IPort.pfnReportHostCursorPosition = vgaR3PortReportHostCursorPosition;
6591
6592	# if defined(VBOX_WITH_HGSMI) && defined(VBOX_WITH_VIDEOHWACCEL)
6593	pThisCC->IVBVACallbacks.pfnVHWACommandCompleteAsync = vbvaR3VHWACommandCompleteAsync;
6594	# endif
6595
6596	pThisCC->ILeds.pfnQueryStatusLed = vgaR3PortQueryStatusLed;
6597	pThis->Led3D.u32Magic = PDMLED_MAGIC;
6598
6599	/*
6600	* We use our own critical section to avoid unncessary pointer indirections
6601	* in interface methods (as well as for historical reasons).
6602	*/
6603	rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSect, RT_SRC_POS, "VGA#%u", iInstance);
6604	AssertRCReturn(rc, rc);
6605	rc = PDMDevHlpSetDeviceCritSect(pDevIns, &pThis->CritSect);
6606	AssertRCReturn(rc, rc);
6607
6608	# ifdef VBOX_WITH_HGSMI
6609	/*
6610	* This critical section is used by vgaR3IOPortHgsmiWrite, VBVARaiseIrq and VBVAOnResume
6611	* for some IRQ related synchronization.
6612	*/
6613	rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSectIRQ, RT_SRC_POS, "VGA#%u_IRQ", iInstance);
6614	AssertRCReturn(rc, rc);
6615	# endif
6616
6617	/*
6618	* PCI device registration.
6619	*/
6620	rc = PDMDevHlpPCIRegister(pDevIns, pPciDev);
6621	if (RT_FAILURE(rc))
6622	return rc;
6623	/AssertMsg(pThis->Dev.uDevFn == 16 \|\| iInstance != 0, ("pThis->Dev.uDevFn=%d\n", pThis->Dev.uDevFn));/
6624	if (pPciDev->uDevFn != 16 && iInstance == 0)
6625	Log(("!!WARNING!!: pThis->dev.uDevFn=%d (ignore if testcase or not started by Main)\n", pPciDev->uDevFn));
6626
6627	# ifdef VBOX_WITH_VMSVGA
6628	pThis->hIoPortVmSvga = NIL_IOMIOPORTHANDLE;
6629	pThis->hMmio2VmSvgaFifo = NIL_PGMMMIO2HANDLE;
6630	if (pThis->fVMSVGAEnabled)
6631	{
6632	/* Register the io command ports. */
6633	rc = PDMDevHlpPCIIORegionCreateIo(pDevIns, pThis->pciRegions.iIO, 0x10, vmsvgaIOWrite, vmsvgaIORead, NULL /pvUser/,
6634	"VMSVGA", NULL /paExtDescs/, &pThis->hIoPortVmSvga);
6635	AssertRCReturn(rc, rc);
6636
6637	rc = PDMDevHlpPCIIORegionCreateMmio2Ex(pDevIns, pThis->pciRegions.iFIFO, pThis->svga.cbFIFO,
6638	PCI_ADDRESS_SPACE_MEM, 0 /fFlags/, vmsvgaR3PciIORegionFifoMapUnmap,
6639	"VMSVGA-FIFO", (void **)&pThisCC->svga.pau32FIFO, &pThis->hMmio2VmSvgaFifo);
6640	AssertRCReturn(rc, PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
6641	N_("Failed to create VMSVGA FIFO (%u bytes)"), pThis->svga.cbFIFO));
6642
6643	pPciDev->pfnRegionLoadChangeHookR3 = vgaR3PciRegionLoadChangeHook;
6644	}
6645	# endif /* VBOX_WITH_VMSVGA */
6646
6647	/*
6648	* Allocate VRAM and create a PCI region for it.
6649	*/
6650	rc = PDMDevHlpPCIIORegionCreateMmio2Ex(pDevIns, pThis->pciRegions.iVRAM, pThis->vram_size,
6651	PCI_ADDRESS_SPACE_MEM_PREFETCH, PGMPHYS_MMIO2_FLAGS_TRACK_DIRTY_PAGES,
6652	vgaR3PciIORegionVRamMapUnmap, "VRam", (void **)&pThisCC->pbVRam, &pThis->hMmio2VRam);
6653	AssertLogRelRCReturn(rc, PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
6654	N_("Failed to allocate %u bytes of VRAM"), pThis->vram_size));
6655
6656	/*
6657	* Register I/O ports.
6658	*/
6659	# define REG_PORT(a_uPort, a_cPorts, a_pfnWrite, a_pfnRead, a_szDesc, a_phIoPort) do { \
6660	rc = PDMDevHlpIoPortCreateFlagsAndMap(pDevIns, a_uPort, a_cPorts, IOM_IOPORT_F_ABS, \
6661	a_pfnWrite, a_pfnRead, "VGA - " a_szDesc, NULL /paExtDescs/, a_phIoPort); \
6662	AssertRCReturn(rc, rc); \
6663	} while (0)
6664	REG_PORT(0x3c0, 2, vgaIoPortArWrite, vgaIoPortArRead, "Attribute Controller", &pThis->hIoPortAr);
6665	REG_PORT(0x3c2, 1, vgaIoPortMsrWrite, vgaIoPortSt00Read, "MSR / ST00", &pThis->hIoPortMsrSt00);
6666	REG_PORT(0x3c3, 1, vgaIoPortUnusedWrite, vgaIoPortUnusedRead, "0x3c3", &pThis->hIoPort3c3);
6667	REG_PORT(0x3c4, 2, vgaIoPortSrWrite, vgaIoPortSrRead, "Sequencer", &pThis->hIoPortSr);
6668	REG_PORT(0x3c6, 4, vgaIoPortDacWrite, vgaIoPortDacRead, "DAC", &pThis->hIoPortDac);
6669	REG_PORT(0x3ca, 4, vgaIoPortPosWrite, vgaIoPortPosRead, "Graphics Position", /?/ &pThis->hIoPortPos);
6670	REG_PORT(0x3ce, 2, vgaIoPortGrWrite, vgaIoPortGrRead, "Graphics Controller", &pThis->hIoPortGr);
6671
6672	/* Note! Ralf Brown lists 0x3b0-0x3b1, 0x3b2-0x3b3 and 0x3b6-0x3b7 as "the same as" 0x3b4-0x3b5. */
6673	REG_PORT(0x3b4, 2, vgaIoPortMdaCrtWrite, vgaIoPortMdaCrtRead, "MDA CRT control", &pThis->hIoPortMdaCrt);
6674	REG_PORT(0x3ba, 1, vgaIoPortMdaFcrWrite, vgaIoPortMdaStRead, "MDA feature/status", &pThis->hIoPortMdaFcrSt);
6675	REG_PORT(0x3d4, 2, vgaIoPortCgaCrtWrite, vgaIoPortCgaCrtRead, "CGA CRT control", &pThis->hIoPortCgaCrt);
6676	REG_PORT(0x3da, 1, vgaIoPortCgaFcrWrite, vgaIoPortCgaStRead, "CGA Feature / status", &pThis->hIoPortCgaFcrSt);
6677
6678	# ifdef CONFIG_BOCHS_VBE
6679	REG_PORT(0x1ce, 1, vgaIoPortWriteVbeIndex, vgaIoPortReadVbeIndex, "VBE Index", &pThis->hIoPortVbeIndex);
6680	REG_PORT(0x1cf, 1, vgaIoPortWriteVbeData, vgaIoPortReadVbeData, "VBE Data", &pThis->hIoPortVbeData);
6681	# endif /* CONFIG_BOCHS_VBE */
6682
6683	# ifdef VBOX_WITH_HGSMI
6684	/* Use reserved VGA IO ports for HGSMI. */
6685	REG_PORT(VGA_PORT_HGSMI_HOST, 4, vgaR3IOPortHgsmiWrite, vgaR3IOPortHgmsiRead, "HGSMI host (3b0-3b3)", &pThis->hIoPortHgsmiHost);
6686	REG_PORT(VGA_PORT_HGSMI_GUEST, 4, vgaR3IOPortHgsmiWrite, vgaR3IOPortHgmsiRead, "HGSMI guest (3d0-3d3)", &pThis->hIoPortHgsmiGuest);
6687	# endif /* VBOX_WITH_HGSMI */
6688
6689	# undef REG_PORT
6690
6691	/* vga bios */
6692	rc = PDMDevHlpIoPortCreateAndMap(pDevIns, VBE_PRINTF_PORT, 1 /cPorts/, vgaIoPortWriteBios, vgaIoPortReadBios,
6693	"VGA BIOS debug/panic", NULL /paExtDescs/, &pThis->hIoPortBios);
6694	AssertRCReturn(rc, rc);
6695
6696	/*
6697	* The MDA/CGA/EGA/VGA/whatever fixed MMIO area.
6698	*/
6699	rc = PDMDevHlpMmioCreateExAndMap(pDevIns, 0x000a0000, 0x00020000,
6700	IOMMMIO_FLAGS_READ_PASSTHRU \| IOMMMIO_FLAGS_WRITE_PASSTHRU \| IOMMMIO_FLAGS_ABS,
6701	NULL /pPciDev/, UINT32_MAX /iPciRegion/,
6702	vgaMmioWrite, vgaMmioRead, vgaMmioFill, NULL /pvUser/,
6703	"VGA - VGA Video Buffer", &pThis->hMmioLegacy);
6704	AssertRCReturn(rc, rc);
6705
6706	/*
6707	* Get the VGA BIOS ROM file name.
6708	*/
6709	rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "BiosRom", &pThisCC->pszVgaBiosFile);
6710	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
6711	{
6712	pThisCC->pszVgaBiosFile = NULL;
6713	rc = VINF_SUCCESS;
6714	}
6715	else if (RT_FAILURE(rc))
6716	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"BiosRom\" as a string failed"));
6717	else if (!*pThisCC->pszVgaBiosFile)
6718	{
6719	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pszVgaBiosFile);
6720	pThisCC->pszVgaBiosFile = NULL;
6721	}
6722
6723	/*
6724	* Determine the VGA BIOS ROM size, open specified ROM file in the process.
6725	*/
6726	RTFILE FileVgaBios = NIL_RTFILE;
6727	if (pThisCC->pszVgaBiosFile)
6728	{
6729	rc = RTFileOpen(&FileVgaBios, pThisCC->pszVgaBiosFile, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
6730	if (RT_SUCCESS(rc))
6731	{
6732	rc = RTFileQuerySize(FileVgaBios, &pThisCC->cbVgaBios);
6733	if (RT_SUCCESS(rc))
6734	{
6735	if ( RT_ALIGN(pThisCC->cbVgaBios, _4K) != pThisCC->cbVgaBios
6736	\|\| pThisCC->cbVgaBios > _64K
6737	\|\| pThisCC->cbVgaBios < 16 * _1K)
6738	rc = VERR_TOO_MUCH_DATA;
6739	}
6740	}
6741	if (RT_FAILURE(rc))
6742	{
6743	/*
6744	* In case of failure simply fall back to the built-in VGA BIOS ROM.
6745	*/
6746	Log(("vgaConstruct: Failed to open VGA BIOS ROM file '%s', rc=%Rrc!\n", pThisCC->pszVgaBiosFile, rc));
6747	RTFileClose(FileVgaBios);
6748	FileVgaBios = NIL_RTFILE;
6749	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pszVgaBiosFile);
6750	pThisCC->pszVgaBiosFile = NULL;
6751	}
6752	}
6753
6754	/*
6755	* Attempt to get the VGA BIOS ROM data from file.
6756	*/
6757	if (pThisCC->pszVgaBiosFile)
6758	{
6759	/*
6760	* Allocate buffer for the VGA BIOS ROM data.
6761	*/
6762	pThisCC->pbVgaBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThisCC->cbVgaBios);
6763	if (pThisCC->pbVgaBios)
6764	{
6765	rc = RTFileRead(FileVgaBios, pThisCC->pbVgaBios, pThisCC->cbVgaBios, NULL);
6766	if (RT_FAILURE(rc))
6767	{
6768	AssertMsgFailed(("RTFileRead(,,%d,NULL) -> %Rrc\n", pThisCC->cbVgaBios, rc));
6769	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pbVgaBios);
6770	pThisCC->pbVgaBios = NULL;
6771	}
6772	rc = VINF_SUCCESS;
6773	}
6774	else
6775	rc = VERR_NO_MEMORY;
6776	}
6777	else
6778	pThisCC->pbVgaBios = NULL;
6779
6780	/* cleanup */
6781	if (FileVgaBios != NIL_RTFILE)
6782	RTFileClose(FileVgaBios);
6783
6784	/* If we were unable to get the data from file for whatever reason, fall
6785	back to the built-in ROM image. */
6786	const uint8_t *pbVgaBiosBinary;
6787	uint64_t cbVgaBiosBinary;
6788	uint32_t fFlags = 0;
6789	if (pThisCC->pbVgaBios == NULL)
6790	{
6791	CPUMMICROARCH enmMicroarch = PDMDevHlpCpuGetGuestMicroarch(pDevIns);
6792	if ( enmMicroarch == kCpumMicroarch_Intel_8086
6793	\|\| enmMicroarch == kCpumMicroarch_Intel_80186
6794	\|\| enmMicroarch == kCpumMicroarch_NEC_V20
6795	\|\| enmMicroarch == kCpumMicroarch_NEC_V30)
6796	{
6797	pbVgaBiosBinary = g_abVgaBiosBinary8086;
6798	cbVgaBiosBinary = g_cbVgaBiosBinary8086;
6799	LogRel(("VGA: Using the 8086 BIOS image!\n"));
6800	}
6801	else if (enmMicroarch == kCpumMicroarch_Intel_80286)
6802	{
6803	pbVgaBiosBinary = g_abVgaBiosBinary286;
6804	cbVgaBiosBinary = g_cbVgaBiosBinary286;
6805	LogRel(("VGA: Using the 286 BIOS image!\n"));
6806	}
6807	else
6808	{
6809	pbVgaBiosBinary = g_abVgaBiosBinary386;
6810	cbVgaBiosBinary = g_cbVgaBiosBinary386;
6811	LogRel(("VGA: Using the 386+ BIOS image.\n"));
6812	}
6813	fFlags = PGMPHYS_ROM_FLAGS_PERMANENT_BINARY;
6814	}
6815	else
6816	{
6817	pbVgaBiosBinary = pThisCC->pbVgaBios;
6818	cbVgaBiosBinary = pThisCC->cbVgaBios;
6819	}
6820
6821	AssertReleaseMsg(cbVgaBiosBinary <= _64K && cbVgaBiosBinary >= 32*_1K, ("cbVgaBiosBinary=%#x\n", cbVgaBiosBinary));
6822	AssertReleaseMsg(RT_ALIGN_Z(cbVgaBiosBinary, GUEST_PAGE_SIZE) == cbVgaBiosBinary, ("cbVgaBiosBinary=%#x\n", cbVgaBiosBinary));
6823	/* Note! Because of old saved states we'll always register at least 36KB of ROM. */
6824	rc = PDMDevHlpROMRegister(pDevIns, 0x000c0000, RT_MAX(cbVgaBiosBinary, 36*_1K), pbVgaBiosBinary, cbVgaBiosBinary,
6825	fFlags, "VGA BIOS");
6826	AssertRCReturn(rc, rc);
6827
6828	/*
6829	* Saved state.
6830	*/
6831	rc = PDMDevHlpSSMRegisterEx(pDevIns, VGA_SAVEDSTATE_VERSION, sizeof(*pThis), NULL,
6832	NULL, vgaR3LiveExec, NULL,
6833	vgaR3SavePrep, vgaR3SaveExec, vgaR3SaveDone,
6834	vgaR3LoadPrep, vgaR3LoadExec, vgaR3LoadDone);
6835	AssertRCReturn(rc, rc);
6836
6837	/*
6838	* Create the refresh timer.
6839	*/
6840	rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_REAL, vgaR3TimerRefresh, NULL,
6841	TMTIMER_FLAGS_NO_CRIT_SECT \| TMTIMER_FLAGS_NO_RING0, "VGA Refresh", &pThis->hRefreshTimer);
6842	AssertRCReturn(rc, rc);
6843
6844	/*
6845	* Attach to the display.
6846	*/
6847	rc = vgaAttach(pDevIns, 0 /* display LUN # */, PDM_TACH_FLAGS_NOT_HOT_PLUG);
6848	AssertRCReturn(rc, rc);
6849
6850	/*
6851	* Initialize the retrace flag.
6852	*/
6853	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "RealRetrace", &pThis->fRealRetrace, false);
6854	AssertLogRelRCReturn(rc, rc);
6855
6856	uint16_t maxBiosXRes;
6857	rc = pHlp->pfnCFGMQueryU16Def(pCfg, "MaxBiosXRes", &maxBiosXRes, UINT16_MAX);
6858	AssertLogRelRCReturn(rc, rc);
6859	uint16_t maxBiosYRes;
6860	rc = pHlp->pfnCFGMQueryU16Def(pCfg, "MaxBiosYRes", &maxBiosYRes, UINT16_MAX);
6861	AssertLogRelRCReturn(rc, rc);
6862
6863	/*
6864	* Compute buffer size for the VBE BIOS Extra Data.
6865	*/
6866	cb = sizeof(mode_info_list) + sizeof(ModeInfoListItem);
6867
6868	rc = pHlp->pfnCFGMQueryU32(pCfg, "HeightReduction", &cyReduction);
6869	if (RT_SUCCESS(rc) && cyReduction)
6870	cb = 2; / Default mode list will be twice long */
6871	else
6872	cyReduction = 0;
6873
6874	rc = pHlp->pfnCFGMQueryU32(pCfg, "CustomVideoModes", &cCustomModes);
6875	if (RT_SUCCESS(rc) && cCustomModes)
6876	cb += sizeof(ModeInfoListItem) * cCustomModes;
6877	else
6878	cCustomModes = 0;
6879
6880	/*
6881	* Allocate and initialize buffer for the VBE BIOS Extra Data.
6882	*/
6883	AssertRelease(sizeof(VBEHEADER) + cb < 65536);
6884	pThisCC->cbVBEExtraData = (uint16_t)(sizeof(VBEHEADER) + cb);
6885	pThisCC->pbVBEExtraData = (uint8_t *)PDMDevHlpMMHeapAllocZ(pDevIns, pThisCC->cbVBEExtraData);
6886	if (!pThisCC->pbVBEExtraData)
6887	return VERR_NO_MEMORY;
6888
6889	pVBEDataHdr = (PVBEHEADER)pThisCC->pbVBEExtraData;
6890	pVBEDataHdr->u16Signature = VBEHEADER_MAGIC;
6891	pVBEDataHdr->cbData = cb;
6892
6893	pCurMode = (ModeInfoListItem *)(pVBEDataHdr + 1);
6894	for (i = 0; i < MODE_INFO_SIZE; i++)
6895	{
6896	uint32_t pixelWidth, reqSize;
6897	if (mode_info_list[i].info.MemoryModel == VBE_MEMORYMODEL_TEXT_MODE)
6898	pixelWidth = 2;
6899	else
6900	pixelWidth = (mode_info_list[i].info.BitsPerPixel +7) / 8;
6901	reqSize = mode_info_list[i].info.XResolution
6902	* mode_info_list[i].info.YResolution
6903	* pixelWidth;
6904	if (reqSize >= pThis->vram_size)
6905	continue;
6906	if (!reqSize)
6907	continue;
6908	if ( mode_info_list[i].info.XResolution > maxBiosXRes
6909	\|\| mode_info_list[i].info.YResolution > maxBiosYRes)
6910	continue;
6911	*pCurMode = mode_info_list[i];
6912	vgaR3AdjustModeInfo(pThis, pCurMode);
6913	pCurMode++;
6914	}
6915
6916	/*
6917	* Copy default modes with subtracted YResolution.
6918	*/
6919	if (cyReduction)
6920	{
6921	ModeInfoListItem *pDefMode = mode_info_list;
6922	Log(("vgaR3Construct: cyReduction=%u\n", cyReduction));
6923	for (i = 0; i < MODE_INFO_SIZE; i++, pDefMode++)
6924	{
6925	uint32_t pixelWidth, reqSize;
6926	if (pDefMode->info.MemoryModel == VBE_MEMORYMODEL_TEXT_MODE)
6927	pixelWidth = 2;
6928	else
6929	pixelWidth = (pDefMode->info.BitsPerPixel + 7) / 8;
6930	reqSize = pDefMode->info.XResolution * pDefMode->info.YResolution * pixelWidth;
6931	if (reqSize >= pThis->vram_size)
6932	continue;
6933	if ( pDefMode->info.XResolution > maxBiosXRes
6934	\|\| pDefMode->info.YResolution - cyReduction > maxBiosYRes)
6935	continue;
6936	pCurMode = pDefMode;
6937	pCurMode->mode += 0x30;
6938	pCurMode->info.YResolution -= cyReduction;
6939	pCurMode++;
6940	}
6941	}
6942
6943
6944	/*
6945	* Add custom modes.
6946	*/
6947	if (cCustomModes)
6948	{
6949	uint16_t u16CurMode = VBE_VBOX_MODE_CUSTOM1;
6950	for (i = 1; i <= cCustomModes; i++)
6951	{
6952	char szExtraDataKey[sizeof("CustomVideoModeXX")];
6953	char *pszExtraData = NULL;
6954
6955	/* query and decode the custom mode string. */
6956	RTStrPrintf(szExtraDataKey, sizeof(szExtraDataKey), "CustomVideoMode%d", i);
6957	rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, szExtraDataKey, &pszExtraData);
6958	if (RT_SUCCESS(rc))
6959	{
6960	ModeInfoListItem *pDefMode = mode_info_list;
6961	unsigned int cx, cy, cBits, cParams, j;
6962	uint16_t u16DefMode;
6963
6964	cParams = sscanf(pszExtraData, "%ux%ux%u", &cx, &cy, &cBits);
6965	if ( cParams != 3
6966	\|\| (cBits != 8 && cBits != 16 && cBits != 24 && cBits != 32))
6967	{
6968	AssertMsgFailed(("Configuration error: Invalid mode data '%s' for '%s'! cBits=%d\n", pszExtraData, szExtraDataKey, cBits));
6969	return VERR_VGA_INVALID_CUSTOM_MODE;
6970	}
6971	if (!cx \|\| !cy)
6972	{
6973	AssertMsgFailed(("Configuration error: Invalid mode data '%s' for '%s'! cx=%u, cy=%u\n", pszExtraData, szExtraDataKey, cx, cy));
6974	return VERR_VGA_INVALID_CUSTOM_MODE;
6975	}
6976	cbPitch = calc_line_pitch(cBits, cx);
6977	if (cy * cbPitch >= pThis->vram_size)
6978	{
6979	AssertMsgFailed(("Configuration error: custom video mode %dx%dx%dbits is too large for the virtual video memory of %dMb. Please increase the video memory size.\n",
6980	cx, cy, cBits, pThis->vram_size / _1M));
6981	return VERR_VGA_INVALID_CUSTOM_MODE;
6982	}
6983	PDMDevHlpMMHeapFree(pDevIns, pszExtraData);
6984
6985	/* Use defaults from max@bpp mode. */
6986	switch (cBits)
6987	{
6988	case 8:
6989	u16DefMode = VBE_VESA_MODE_1024X768X8;
6990	break;
6991
6992	case 16:
6993	u16DefMode = VBE_VESA_MODE_1024X768X565;
6994	break;
6995
6996	case 24:
6997	u16DefMode = VBE_VESA_MODE_1024X768X888;
6998	break;
6999
7000	case 32:
7001	u16DefMode = VBE_OWN_MODE_1024X768X8888;
7002	break;
7003
7004	default: /* gcc, shut up! */
7005	AssertMsgFailed(("gone postal!\n"));
7006	continue;
7007	}
7008
7009	/* mode_info_list is not terminated */
7010	for (j = 0; j < MODE_INFO_SIZE && pDefMode->mode != u16DefMode; j++)
7011	pDefMode++;
7012	Assert(j < MODE_INFO_SIZE);
7013
7014	pCurMode = pDefMode;
7015	pCurMode->mode = u16CurMode++;
7016
7017	/* adjust defaults */
7018	pCurMode->info.XResolution = cx;
7019	pCurMode->info.YResolution = cy;
7020	pCurMode->info.BytesPerScanLine = cbPitch;
7021	pCurMode->info.LinBytesPerScanLine = cbPitch;
7022	vgaR3AdjustModeInfo(pThis, pCurMode);
7023
7024	/* commit it */
7025	pCurMode++;
7026	}
7027	else if (rc != VERR_CFGM_VALUE_NOT_FOUND)
7028	{
7029	AssertMsgFailed(("pHlp->pfnCFGMQueryStringAlloc(,'%s',) -> %Rrc\n", szExtraDataKey, rc));
7030	return rc;
7031	}
7032	} /* foreach custom mode key */
7033	}
7034
7035	/*
7036	* Add the "End of list" mode.
7037	*/
7038	memset(pCurMode, 0, sizeof(*pCurMode));
7039	pCurMode->mode = VBE_VESA_MODE_END_OF_LIST;
7040
7041	/*
7042	* Register I/O Port for the VBE BIOS Extra Data.
7043	*/
7044	rc = PDMDevHlpIoPortCreateAndMap(pDevIns, VBE_EXTRA_PORT, 1 /cPorts/, vbeR3IOPortWriteVbeExtra, vbeR3IoPortReadVbeExtra,
7045	"VBE BIOS Extra Data", NULL /paExtDesc/, &pThis->hIoPortVbeExtra);
7046	AssertRCReturn(rc, rc);
7047
7048	/*
7049	* Register I/O Port for the BIOS Logo.
7050	*/
7051	rc = PDMDevHlpIoPortCreateAndMap(pDevIns, LOGO_IO_PORT, 1 /cPorts/, vbeR3IoPortWriteCmdLogo, vbeR3IoPortReadCmdLogo,
7052	"BIOS Logo", NULL /paExtDesc/, &pThis->hIoPortCmdLogo);
7053	AssertRCReturn(rc, rc);
7054
7055	/*
7056	* Register debugger info callbacks.
7057	*/
7058	PDMDevHlpDBGFInfoRegister(pDevIns, "vga", "Display basic VGA state.", vgaR3InfoState);
7059	PDMDevHlpDBGFInfoRegister(pDevIns, "vgatext", "Display VGA memory formatted as text.", vgaR3InfoText);
7060	PDMDevHlpDBGFInfoRegister(pDevIns, "vgacr", "Dump VGA CRTC registers.", vgaR3InfoCR);
7061	PDMDevHlpDBGFInfoRegister(pDevIns, "vgagr", "Dump VGA Graphics Controller registers.", vgaR3InfoGR);
7062	PDMDevHlpDBGFInfoRegister(pDevIns, "vgasr", "Dump VGA Sequencer registers.", vgaR3InfoSR);
7063	PDMDevHlpDBGFInfoRegister(pDevIns, "vgaar", "Dump VGA Attribute Controller registers.", vgaR3InfoAR);
7064	PDMDevHlpDBGFInfoRegister(pDevIns, "vgapl", "Dump planar graphics state.", vgaR3InfoPlanar);
7065	PDMDevHlpDBGFInfoRegister(pDevIns, "vgadac", "Dump VGA DAC registers.", vgaR3InfoDAC);
7066	PDMDevHlpDBGFInfoRegister(pDevIns, "vbe", "Dump VGA VBE registers.", vgaR3InfoVBE);
7067
7068	/*
7069	* Construct the logo header.
7070	*/
7071	LOGOHDR LogoHdr = { LOGO_HDR_MAGIC, 0, 0, 0, 0, 0, 0 };
7072
7073	rc = pHlp->pfnCFGMQueryU8(pCfg, "FadeIn", &LogoHdr.fu8FadeIn);
7074	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
7075	LogoHdr.fu8FadeIn = 1;
7076	else if (RT_FAILURE(rc))
7077	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"FadeIn\" as integer failed"));
7078
7079	rc = pHlp->pfnCFGMQueryU8(pCfg, "FadeOut", &LogoHdr.fu8FadeOut);
7080	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
7081	LogoHdr.fu8FadeOut = 1;
7082	else if (RT_FAILURE(rc))
7083	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"FadeOut\" as integer failed"));
7084
7085	rc = pHlp->pfnCFGMQueryU16(pCfg, "LogoTime", &LogoHdr.u16LogoMillies);
7086	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
7087	LogoHdr.u16LogoMillies = 0;
7088	else if (RT_FAILURE(rc))
7089	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"LogoTime\" as integer failed"));
7090
7091	rc = pHlp->pfnCFGMQueryU8(pCfg, "ShowBootMenu", &LogoHdr.fu8ShowBootMenu);
7092	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
7093	LogoHdr.fu8ShowBootMenu = 0;
7094	else if (RT_FAILURE(rc))
7095	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"ShowBootMenu\" as integer failed"));
7096
7097	# if defined(DEBUG) && !defined(DEBUG_sunlover) && !defined(DEBUG_michael)
7098	/* Disable the logo abd menu if all default settings. */
7099	if ( LogoHdr.fu8FadeIn
7100	&& LogoHdr.fu8FadeOut
7101	&& LogoHdr.u16LogoMillies == 0
7102	&& LogoHdr.fu8ShowBootMenu == 2)
7103	{
7104	LogoHdr.fu8FadeIn = LogoHdr.fu8FadeOut = 0;
7105	LogoHdr.u16LogoMillies = 500;
7106	}
7107	# endif
7108
7109	/* Delay the logo a little bit */
7110	if (LogoHdr.fu8FadeIn && LogoHdr.fu8FadeOut && !LogoHdr.u16LogoMillies)
7111	LogoHdr.u16LogoMillies = RT_MAX(LogoHdr.u16LogoMillies, LOGO_DELAY_TIME);
7112
7113	/*
7114	* Get the Logo file name.
7115	*/
7116	rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "LogoFile", &pThisCC->pszLogoFile);
7117	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
7118	pThisCC->pszLogoFile = NULL;
7119	else if (RT_FAILURE(rc))
7120	return PDMDEV_SET_ERROR(pDevIns, rc,
7121	N_("Configuration error: Querying \"LogoFile\" as a string failed"));
7122	else if (!*pThisCC->pszLogoFile)
7123	{
7124	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pszLogoFile);
7125	pThisCC->pszLogoFile = NULL;
7126	}
7127
7128	/*
7129	* Determine the logo size, open any specified logo file in the process.
7130	*/
7131	LogoHdr.cbLogo = g_cbVgaDefBiosLogo;
7132	RTFILE FileLogo = NIL_RTFILE;
7133	if (pThisCC->pszLogoFile)
7134	{
7135	rc = RTFileOpen(&FileLogo, pThisCC->pszLogoFile,
7136	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
7137	if (RT_SUCCESS(rc))
7138	{
7139	uint64_t cbFile;
7140	rc = RTFileQuerySize(FileLogo, &cbFile);
7141	if (RT_SUCCESS(rc))
7142	{
7143	if (cbFile > 0 && cbFile < 32*_1M)
7144	LogoHdr.cbLogo = (uint32_t)cbFile;
7145	else
7146	rc = VERR_TOO_MUCH_DATA;
7147	}
7148	}
7149	if (RT_FAILURE(rc))
7150	{
7151	/*
7152	* Ignore failure and fall back to the default logo.
7153	*/
7154	LogRel(("vgaR3Construct: Failed to open logo file '%s', rc=%Rrc!\n", pThisCC->pszLogoFile, rc));
7155	if (FileLogo != NIL_RTFILE)
7156	RTFileClose(FileLogo);
7157	FileLogo = NIL_RTFILE;
7158	PDMDevHlpMMHeapFree(pDevIns, pThisCC->pszLogoFile);
7159	pThisCC->pszLogoFile = NULL;
7160	}
7161	}
7162
7163	/*
7164	* Disable graphic splash screen if it doesn't fit into VRAM.
7165	*/
7166	if (pThis->vram_size < LOGO_MAX_SIZE)
7167	LogoHdr.fu8FadeIn = LogoHdr.fu8FadeOut = LogoHdr.u16LogoMillies = 0;
7168
7169	/*
7170	* Allocate buffer for the logo data.
7171	* Let us fall back to default logo on read failure.
7172	*/
7173	pThisCC->cbLogo = LogoHdr.cbLogo;
7174	if (g_cbVgaDefBiosLogo)
7175	pThisCC->cbLogo = RT_MAX(pThisCC->cbLogo, g_cbVgaDefBiosLogo);
7176	# ifndef VBOX_OSE
7177	if (g_cbVgaDefBiosLogoNY)
7178	pThisCC->cbLogo = RT_MAX(pThisCC->cbLogo, g_cbVgaDefBiosLogoNY);
7179	# endif
7180	pThisCC->cbLogo += sizeof(LogoHdr);
7181
7182	pThisCC->pbLogo = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThisCC->cbLogo);
7183	if (pThisCC->pbLogo)
7184	{
7185	/*
7186	* Write the logo header.
7187	*/
7188	PLOGOHDR pLogoHdr = (PLOGOHDR)pThisCC->pbLogo;
7189	*pLogoHdr = LogoHdr;
7190
7191	/*
7192	* Write the logo bitmap.
7193	*/
7194	if (pThisCC->pszLogoFile)
7195	{
7196	rc = RTFileRead(FileLogo, pLogoHdr + 1, LogoHdr.cbLogo, NULL);
7197	if (RT_SUCCESS(rc))
7198	rc = vbeR3ParseBitmap(pThisCC);
7199	if (RT_FAILURE(rc))
7200	{
7201	LogRel(("Error %Rrc reading logo file '%s', using internal logo\n",
7202	rc, pThisCC->pszLogoFile));
7203	pLogoHdr->cbLogo = LogoHdr.cbLogo = g_cbVgaDefBiosLogo;
7204	}
7205	}
7206	if ( !pThisCC->pszLogoFile
7207	\|\| RT_FAILURE(rc))
7208	{
7209	# ifndef VBOX_OSE
7210	RTTIMESPEC Now;
7211	RTTimeLocalNow(&Now);
7212	RTTIME T;
7213	RTTimeLocalExplode(&T, &Now);
7214	bool fSuppressNewYearSplash = false;
7215	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "SuppressNewYearSplash", &fSuppressNewYearSplash, true);
7216	if ( !fSuppressNewYearSplash
7217	&& (T.u16YearDay > 353 \|\| T.u16YearDay < 10))
7218	{
7219	pLogoHdr->cbLogo = LogoHdr.cbLogo = g_cbVgaDefBiosLogoNY;
7220	memcpy(pLogoHdr + 1, g_abVgaDefBiosLogoNY, LogoHdr.cbLogo);
7221	pThisCC->fBootMenuInverse = true;
7222	}
7223	else
7224	# endif
7225	memcpy(pLogoHdr + 1, g_abVgaDefBiosLogo, LogoHdr.cbLogo);
7226	rc = vbeR3ParseBitmap(pThisCC);
7227	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Parsing of internal bitmap failed! vbeR3ParseBitmap() -> %Rrc\n", rc), rc);
7228	}
7229
7230	rc = VINF_SUCCESS;
7231	}
7232	else
7233	rc = VERR_NO_MEMORY;
7234
7235	/*
7236	* Cleanup.
7237	*/
7238	if (FileLogo != NIL_RTFILE)
7239	RTFileClose(FileLogo);
7240
7241	# ifdef VBOX_WITH_HGSMI
7242	VBVAInit(pDevIns, pThis, pThisCC);
7243	# endif
7244
7245	# ifdef VBOX_WITH_VDMA
7246	if (rc == VINF_SUCCESS)
7247	{
7248	rc = vboxVDMAConstruct(pThis, pThisCC, 1024);
7249	AssertRC(rc);
7250	}
7251	# endif
7252
7253	# ifdef VBOX_WITH_VMSVGA
7254	if ( rc == VINF_SUCCESS
7255	&& pThis->fVMSVGAEnabled)
7256	rc = vmsvgaR3Init(pDevIns);
7257	# endif
7258
7259	/*
7260	* Statistics.
7261	*/
7262	# ifdef VBOX_WITH_STATISTICS
7263	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRZMemoryRead, STAMTYPE_PROFILE, "RZ/MMIO-Read", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryRead() body.");
7264	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatR3MemoryRead, STAMTYPE_PROFILE, "R3/MMIO-Read", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryRead() body.");
7265	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRZMemoryWrite, STAMTYPE_PROFILE, "RZ/MMIO-Write", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryWrite() body.");
7266	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatR3MemoryWrite, STAMTYPE_PROFILE, "R3/MMIO-Write", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryWrite() body.");
7267	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMapPage, STAMTYPE_COUNTER, "MapPageCalls", STAMUNIT_OCCURENCES, "Calls to IOMMmioMapMmio2Page.");
7268	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMapReset, STAMTYPE_COUNTER, "MapPageReset", STAMUNIT_OCCURENCES, "Calls to IOMMmioResetRegion.");
7269	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatUpdateDisp, STAMTYPE_COUNTER, "UpdateDisplay", STAMUNIT_OCCURENCES, "Calls to vgaR3PortUpdateDisplay().");
7270	# endif
7271	# ifdef VBOX_WITH_HGSMI
7272	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatHgsmiMdaCgaAccesses, STAMTYPE_COUNTER, "HgmsiMdaCgaAccesses", STAMUNIT_OCCURENCES, "Number of non-HGMSI accesses for 03b0-3b3 and 03d0-3d3.");
7273	# endif
7274
7275	/* Init latched access mask. */
7276	pThis->uMaskLatchAccess = 0x3ff;
7277
7278	if (RT_SUCCESS(rc))
7279	{
7280	PPDMIBASE pBase;
7281	/*
7282	* Attach status driver (optional).
7283	*/
7284	rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThisCC->IBase, &pBase, "Status Port");
7285	if (RT_SUCCESS(rc))
7286	pThisCC->pLedsConnector = PDMIBASE_QUERY_INTERFACE(pBase, PDMILEDCONNECTORS);
7287	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
7288	{
7289	Log(("%s/%d: warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance));
7290	rc = VINF_SUCCESS;
7291	}
7292	else
7293	{
7294	AssertMsgFailed(("Failed to attach to status driver. rc=%Rrc\n", rc));
7295	rc = PDMDEV_SET_ERROR(pDevIns, rc, N_("VGA cannot attach to status driver"));
7296	}
7297	}
7298	return rc;
7299	}
7300
7301	#else /* !IN_RING3 */
7302
7303	/**
7304	* @callback_method_impl{PDMDEVREGR0,pfnConstruct}
7305	*/
7306	static DECLCALLBACK(int) vgaRZConstruct(PPDMDEVINS pDevIns)
7307	{
7308	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
7309	PVGASTATE pThis = PDMDEVINS_2_DATA(pDevIns, PVGASTATE);
7310	PVGASTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVGASTATECC);
7311
7312	int rc = PDMDevHlpSetDeviceCritSect(pDevIns, &pThis->CritSect);
7313	AssertRCReturn(rc, rc);
7314
7315	/*
7316	* Set I/O port callbacks for this context.
7317	* We just copy the ring-3 registration bits and remove the '&' before the handle.
7318	*/
7319	# define REG_PORT(a_uPort, a_cPorts, a_pfnWrite, a_pfnRead, a_szDesc, a_hIoPort) do { \
7320	rc = PDMDevHlpIoPortSetUpContext(pDevIns, a_hIoPort, a_pfnWrite, a_pfnRead, NULL /pvUser/); \
7321	AssertRCReturn(rc, rc); \
7322	} while (0)
7323
7324	REG_PORT(0x3c0, 2, vgaIoPortArWrite, vgaIoPortArRead, "Attribute Controller", pThis->hIoPortAr);
7325	REG_PORT(0x3c2, 1, vgaIoPortMsrWrite, vgaIoPortSt00Read, "MSR / ST00", pThis->hIoPortMsrSt00);
7326	REG_PORT(0x3c3, 1, vgaIoPortUnusedWrite, vgaIoPortUnusedRead, "0x3c3", pThis->hIoPort3c3);
7327	REG_PORT(0x3c4, 2, vgaIoPortSrWrite, vgaIoPortSrRead, "Sequencer", pThis->hIoPortSr);
7328	REG_PORT(0x3c6, 4, vgaIoPortDacWrite, vgaIoPortDacRead, "DAC", pThis->hIoPortDac);
7329	REG_PORT(0x3ca, 4, vgaIoPortPosWrite, vgaIoPortPosRead, "Graphics Position", /?/ pThis->hIoPortPos);
7330	REG_PORT(0x3ce, 2, vgaIoPortGrWrite, vgaIoPortGrRead, "Graphics Controller", pThis->hIoPortGr);
7331
7332	REG_PORT(0x3b4, 2, vgaIoPortMdaCrtWrite, vgaIoPortMdaCrtRead, "MDA CRT control", pThis->hIoPortMdaCrt);
7333	REG_PORT(0x3ba, 1, vgaIoPortMdaFcrWrite, vgaIoPortMdaStRead, "MDA feature/status", pThis->hIoPortMdaFcrSt);
7334	REG_PORT(0x3d4, 2, vgaIoPortCgaCrtWrite, vgaIoPortCgaCrtRead, "CGA CRT control", pThis->hIoPortCgaCrt);
7335	REG_PORT(0x3da, 1, vgaIoPortCgaFcrWrite, vgaIoPortCgaStRead, "CGA Feature / status", pThis->hIoPortCgaFcrSt);
7336
7337	# ifdef CONFIG_BOCHS_VBE
7338	REG_PORT(0x1ce, 1, vgaIoPortWriteVbeIndex, vgaIoPortReadVbeIndex, "VBE Index", pThis->hIoPortVbeIndex);
7339	REG_PORT(0x1cf, 1, vgaIoPortWriteVbeData, vgaIoPortReadVbeData, "VBE Data", pThis->hIoPortVbeData);
7340	# endif /* CONFIG_BOCHS_VBE */
7341
7342	# undef REG_PORT
7343
7344	/* BIOS port: */
7345	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPortBios, vgaIoPortWriteBios, vgaIoPortReadBios, NULL /pvUser/);
7346	AssertRCReturn(rc, rc);
7347
7348	# ifdef VBOX_WITH_VMSVGA
7349	if (pThis->hIoPortVmSvga != NIL_IOMIOPORTHANDLE)
7350	{
7351	AssertReturn(pThis->fVMSVGAEnabled, VERR_INVALID_STATE);
7352	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPortVmSvga, vmsvgaIOWrite, vmsvgaIORead, NULL /pvUser/);
7353	AssertRCReturn(rc, rc);
7354	}
7355	else
7356	AssertReturn(!pThis->fVMSVGAEnabled, VERR_INVALID_STATE);
7357	# endif
7358
7359	/*
7360	* MMIO.
7361	*/
7362	rc = PDMDevHlpMmioSetUpContextEx(pDevIns, pThis->hMmioLegacy, vgaMmioWrite, vgaMmioRead, vgaMmioFill, NULL /pvUser/);
7363	AssertRCReturn(rc, rc);
7364
7365	/*
7366	* Map the start of the VRAM into this context.
7367	*/
7368	# if defined(VBOX_WITH_2X_4GB_ADDR_SPACE) \|\| (defined(IN_RING0) && defined(VGA_WITH_PARTIAL_RING0_MAPPING))
7369	rc = PDMDevHlpMmio2SetUpContext(pDevIns, pThis->hMmio2VRam, 0 /* off /, VGA_MAPPING_SIZE, (void *)&pThisCC->pbVRam);
7370	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpMmio2SetUpContext(,VRAM,0,%#x,) -> %Rrc\n", VGA_MAPPING_SIZE, rc), rc);
7371	# endif
7372
7373	/*
7374	* Map the first page of the VMSVGA FIFO into this context (not raw-mode).
7375	* We currently only access SVGA_FIFO_MIN, SVGA_FIFO_PITCHLOCK, and SVGA_FIFO_BUSY.
7376	*/
7377	# if defined(VBOX_WITH_VMSVGA) && !defined(IN_RC)
7378	AssertCompile((RT_MAX(SVGA_FIFO_MIN, RT_MAX(SVGA_FIFO_PITCHLOCK, SVGA_FIFO_BUSY)) + 1) * sizeof(uint32_t) < GUEST_PAGE_SIZE);
7379	if (pThis->fVMSVGAEnabled)
7380	{
7381	rc = PDMDevHlpMmio2SetUpContext(pDevIns, pThis->hMmio2VmSvgaFifo, 0 /* off */, GUEST_PAGE_SIZE,
7382	(void **)&pThisCC->svga.pau32FIFO);
7383	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpMapMMIO2IntoR0(%#x,) -> %Rrc\n", pThis->svga.cbFIFO, rc), rc);
7384	}
7385	else
7386	AssertReturn(pThis->hMmio2VmSvgaFifo == NIL_PGMMMIO2HANDLE, VERR_INVALID_STATE);
7387	# endif
7388
7389	return VINF_SUCCESS;
7390	}
7391
7392	#endif /* !IN_RING3 */
7393
7394	/**
7395	* The device registration structure.
7396	*/
7397	const PDMDEVREG g_DeviceVga =
7398	{
7399	/* .u32Version = */ PDM_DEVREG_VERSION,
7400	/* .uReserved0 = */ 0,
7401	/* .szName = */ "vga",
7402	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RZ \| PDM_DEVREG_FLAGS_NEW_STYLE,
7403	/* .fClass = */ PDM_DEVREG_CLASS_GRAPHICS,
7404	/* .cMaxInstances = */ 1,
7405	/* .uSharedVersion = */ 42,
7406	/* .cbInstanceShared = */ sizeof(VGASTATE),
7407	/* .cbInstanceCC = */ sizeof(VGASTATECC),
7408	/* .cbInstanceRC = */ sizeof(VGASTATERC),
7409	/* .cMaxPciDevices = */ 1,
7410	/* .cMaxMsixVectors = */ 0,
7411	/* .pszDescription = */ "VGA Adaptor with VESA extensions.",
7412	#if defined(IN_RING3)
7413	/* .pszRCMod = */ "VBoxDDRC.rc",
7414	/* .pszR0Mod = */ "VBoxDDR0.r0",
7415	/* .pfnConstruct = */ vgaR3Construct,
7416	/* .pfnDestruct = */ vgaR3Destruct,
7417	/* .pfnRelocate = */ vgaR3Relocate,
7418	/* .pfnMemSetup = */ NULL,
7419	/* .pfnPowerOn = */ vgaR3PowerOn,
7420	/* .pfnReset = */ vgaR3Reset,
7421	/* .pfnSuspend = */ NULL,
7422	/* .pfnResume = */ vgaR3Resume,
7423	/* .pfnAttach = */ vgaAttach,
7424	/* .pfnDetach = */ vgaDetach,
7425	/* .pfnQueryInterface = */ NULL,
7426	/* .pfnInitComplete = */ NULL,
7427	/* .pfnPowerOff = */ vgaR3PowerOff,
7428	/* .pfnSoftReset = */ NULL,
7429	/* .pfnReserved0 = */ NULL,
7430	/* .pfnReserved1 = */ NULL,
7431	/* .pfnReserved2 = */ NULL,
7432	/* .pfnReserved3 = */ NULL,
7433	/* .pfnReserved4 = */ NULL,
7434	/* .pfnReserved5 = */ NULL,
7435	/* .pfnReserved6 = */ NULL,
7436	/* .pfnReserved7 = */ NULL,
7437	#elif defined(IN_RING0)
7438	/* .pfnEarlyConstruct = */ NULL,
7439	/* .pfnConstruct = */ vgaRZConstruct,
7440	/* .pfnDestruct = */ NULL,
7441	/* .pfnFinalDestruct = */ NULL,
7442	/* .pfnRequest = */ NULL,
7443	/* .pfnReserved0 = */ NULL,
7444	/* .pfnReserved1 = */ NULL,
7445	/* .pfnReserved2 = */ NULL,
7446	/* .pfnReserved3 = */ NULL,
7447	/* .pfnReserved4 = */ NULL,
7448	/* .pfnReserved5 = */ NULL,
7449	/* .pfnReserved6 = */ NULL,
7450	/* .pfnReserved7 = */ NULL,
7451	#elif defined(IN_RC)
7452	/* .pfnConstruct = */ vgaRZConstruct,
7453	/* .pfnReserved0 = */ NULL,
7454	/* .pfnReserved1 = */ NULL,
7455	/* .pfnReserved2 = */ NULL,
7456	/* .pfnReserved3 = */ NULL,
7457	/* .pfnReserved4 = */ NULL,
7458	/* .pfnReserved5 = */ NULL,
7459	/* .pfnReserved6 = */ NULL,
7460	/* .pfnReserved7 = */ NULL,
7461	#else
7462	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
7463	#endif
7464	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
7465	};
7466
7467	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
7468
7469	/*
7470	* Local Variables:
7471	* nuke-trailing-whitespace-p:nil
7472	* End:
7473	*/

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA.cpp@ 95601

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