DevVGA.h@ 29742

Last change on this file since 29742 was 29742, checked in by vboxsync, 15 years ago
wddm/2D: more impl (get caps + initialization working)
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 22.8 KB

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1	/* $Id: DevVGA.h 29742 2010-05-21 15:58:56Z vboxsync $ */
2	/** @file
3	* DevVGA - VBox VGA/VESA device, internal header.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 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 internal VGA defines.
21	*
22	* Copyright (c) 2003-2004 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	#ifdef VBOX
43	/** The default amount of VRAM. */
44	# define VGA_VRAM_DEFAULT (_4M)
45	/** The maximum amount of VRAM. Limited by VBOX_MAX_ALLOC_PAGE_COUNT. */
46	# define VGA_VRAM_MAX (256 * _1M)
47	/** The minimum amount of VRAM. */
48	# define VGA_VRAM_MIN (_1M)
49	#endif
50
51	#ifdef VBOX_WITH_HGSMI
52	# include "HGSMI/HGSMIHost.h"
53	#endif /* VBOX_WITH_HGSMI */
54	#include "DevVGASavedState.h"
55
56	#define MSR_COLOR_EMULATION 0x01
57	#define MSR_PAGE_SELECT 0x20
58
59	#define ST01_V_RETRACE 0x08
60	#define ST01_DISP_ENABLE 0x01
61
62	/* bochs VBE support */
63	#define CONFIG_BOCHS_VBE
64
65	#ifdef VBOX
66	#define VBE_DISPI_MAX_XRES 16384
67	#define VBE_DISPI_MAX_YRES 16384
68	#else
69	#define VBE_DISPI_MAX_XRES 1600
70	#define VBE_DISPI_MAX_YRES 1200
71	#endif
72	#define VBE_DISPI_MAX_BPP 32
73
74	#define VBE_DISPI_INDEX_ID 0x0
75	#define VBE_DISPI_INDEX_XRES 0x1
76	#define VBE_DISPI_INDEX_YRES 0x2
77	#define VBE_DISPI_INDEX_BPP 0x3
78	#define VBE_DISPI_INDEX_ENABLE 0x4
79	#define VBE_DISPI_INDEX_BANK 0x5
80	#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
81	#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
82	#define VBE_DISPI_INDEX_X_OFFSET 0x8
83	#define VBE_DISPI_INDEX_Y_OFFSET 0x9
84	#define VBE_DISPI_INDEX_VBOX_VIDEO 0xa
85	#define VBE_DISPI_INDEX_NB 0xb
86
87	#define VBE_DISPI_ID0 0xB0C0
88	#define VBE_DISPI_ID1 0xB0C1
89	#define VBE_DISPI_ID2 0xB0C2
90	#define VBE_DISPI_ID3 0xB0C3
91	#define VBE_DISPI_ID4 0xB0C4
92
93	#ifdef VBOX
94	/* The VBOX interface id. Indicates support for VBE_DISPI_INDEX_VBOX_VIDEO. */
95	#define VBE_DISPI_ID_VBOX_VIDEO 0xBE00
96	#ifdef VBOX_WITH_HGSMI
97	/* The VBOX interface id. Indicates support for VBVA shared memory interface. */
98	#define VBE_DISPI_ID_HGSMI 0xBE01
99	#endif /* VBOX_WITH_HGSMI */
100	#endif /* VBOX */
101
102	#define VBE_DISPI_DISABLED 0x00
103	#define VBE_DISPI_ENABLED 0x01
104	#define VBE_DISPI_GETCAPS 0x02
105	#define VBE_DISPI_8BIT_DAC 0x20
106	#define VBE_DISPI_LFB_ENABLED 0x40
107	#define VBE_DISPI_NOCLEARMEM 0x80
108
109	#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
110
111	#ifdef CONFIG_BOCHS_VBE
112
113	#define VGA_STATE_COMMON_BOCHS_VBE \
114	uint16_t vbe_index; \
115	uint16_t vbe_regs[VBE_DISPI_INDEX_NB]; \
116	uint32_t vbe_start_addr; \
117	uint32_t vbe_line_offset; \
118	uint32_t vbe_bank_max;
119
120	#else
121
122	#define VGA_STATE_COMMON_BOCHS_VBE
123
124	#endif /* !CONFIG_BOCHS_VBE */
125
126	#define CH_ATTR_SIZE (160 * 100)
127	#define VGA_MAX_HEIGHT VBE_DISPI_MAX_YRES
128
129	#ifndef VBOX
130	#define VGA_STATE_COMMON \
131	uint8_t *vram_ptr; \
132	unsigned long vram_offset; \
133	unsigned int vram_size; \
134	uint32_t latch; \
135	uint8_t sr_index; \
136	uint8_t sr[256]; \
137	uint8_t gr_index; \
138	uint8_t gr[256]; \
139	uint8_t ar_index; \
140	uint8_t ar[21]; \
141	int ar_flip_flop; \
142	uint8_t cr_index; \
143	uint8_t cr[256]; /* CRT registers */ \
144	uint8_t msr; /* Misc Output Register */ \
145	uint8_t fcr; /* Feature Control Register */ \
146	uint8_t st00; /* status 0 */ \
147	uint8_t st01; /* status 1 */ \
148	uint8_t dac_state; \
149	uint8_t dac_sub_index; \
150	uint8_t dac_read_index; \
151	uint8_t dac_write_index; \
152	uint8_t dac_cache[3]; /* used when writing */ \
153	uint8_t palette[768]; \
154	int32_t bank_offset; \
155	int (get_bpp)(struct VGAState s); \
156	void (get_offsets)(struct VGAState s, \
157	uint32_t *pline_offset, \
158	uint32_t *pstart_addr, \
159	uint32_t *pline_compare); \
160	void (get_resolution)(struct VGAState s, \
161	int *pwidth, \
162	int *pheight); \
163	VGA_STATE_COMMON_BOCHS_VBE \
164	/* display refresh support */ \
165	DisplayState *ds; \
166	uint32_t font_offsets[2]; \
167	int graphic_mode; \
168	uint8_t shift_control; \
169	uint8_t double_scan; \
170	uint32_t line_offset; \
171	uint32_t line_compare; \
172	uint32_t start_addr; \
173	uint32_t plane_updated; \
174	uint8_t last_cw, last_ch; \
175	uint32_t last_width, last_height; /* in chars or pixels */ \
176	uint32_t last_scr_width, last_scr_height; /* in pixels */ \
177	uint8_t cursor_start, cursor_end; \
178	uint32_t cursor_offset; \
179	unsigned int (*rgb_to_pixel)(unsigned int r, \
180	unsigned int g, unsigned b); \
181	/* hardware mouse cursor support */ \
182	uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \
183	void (cursor_invalidate)(struct VGAState s); \
184	void (cursor_draw_line)(struct VGAState s, uint8_t *d, int y); \
185	/* tell for each page if it has been updated since the last time */ \
186	uint32_t last_palette[256]; \
187	uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
188
189	#else /* VBOX */
190
191	struct VGAState;
192	typedef int FNGETBPP(struct VGAState *s);
193	typedef void FNGETOFFSETS(struct VGAState s, uint32_t pline_offset, uint32_t pstart_addr, uint32_t pline_compare);
194	typedef void FNGETRESOLUTION(struct VGAState s, int pwidth, int *pheight);
195	typedef unsigned int FNRGBTOPIXEL(unsigned int r, unsigned int g, unsigned b);
196	typedef void FNCURSORINVALIDATE(struct VGAState *s);
197	typedef void FNCURSORDRAWLINE(struct VGAState s, uint8_t d, int y);
198
199	/* bird: vram_offset have been remove, function pointers declared external,
200	some type changes, and some padding have been added. */
201	#define VGA_STATE_COMMON \
202	R3PTRTYPE(uint8_t *) vram_ptrR3; \
203	uint32_t vram_size; \
204	uint32_t latch; \
205	uint8_t sr_index; \
206	uint8_t sr[256]; \
207	uint8_t gr_index; \
208	uint8_t gr[256]; \
209	uint8_t ar_index; \
210	uint8_t ar[21]; \
211	int32_t ar_flip_flop; \
212	uint8_t cr_index; \
213	uint8_t cr[256]; /* CRT registers */ \
214	uint8_t msr; /* Misc Output Register */ \
215	uint8_t fcr; /* Feature Control Register */ \
216	uint8_t st00; /* status 0 */ \
217	uint8_t st01; /* status 1 */ \
218	uint8_t dac_state; \
219	uint8_t dac_sub_index; \
220	uint8_t dac_read_index; \
221	uint8_t dac_write_index; \
222	uint8_t dac_cache[3]; /* used when writing */ \
223	uint8_t palette[768]; \
224	int32_t bank_offset; \
225	int32_t padding0; \
226	R3PTRTYPE(FNGETBPP *) get_bpp; \
227	R3PTRTYPE(FNGETOFFSETS *) get_offsets; \
228	R3PTRTYPE(FNGETRESOLUTION *) get_resolution; \
229	VGA_STATE_COMMON_BOCHS_VBE \
230	/* display refresh support */ \
231	uint32_t font_offsets[2]; \
232	int32_t graphic_mode; \
233	uint8_t shift_control; \
234	uint8_t double_scan; \
235	uint8_t padding1[2]; \
236	uint32_t line_offset; \
237	uint32_t line_compare; \
238	uint32_t start_addr; \
239	uint32_t plane_updated; \
240	uint8_t last_cw, last_ch, padding2[2]; \
241	uint32_t last_width, last_height; /* in chars or pixels */ \
242	uint32_t last_scr_width, last_scr_height; /* in pixels */ \
243	uint32_t last_bpp; \
244	uint8_t cursor_start, cursor_end, padding3[2]; \
245	uint32_t cursor_offset; \
246	uint32_t padding4; \
247	R3PTRTYPE(FNRGBTOPIXEL *) rgb_to_pixel; \
248	/* hardware mouse cursor support */ \
249	uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32]; \
250	R3PTRTYPE(FNCURSORINVALIDATE *) cursor_invalidate; \
251	R3PTRTYPE(FNCURSORDRAWLINE *) cursor_draw_line; \
252	/* tell for each page if it has been updated since the last time */ \
253	uint32_t last_palette[256]; \
254	uint32_t last_ch_attr[CH_ATTR_SIZE]; /* XXX: make it dynamic */
255
256	#endif /* VBOX */
257
258	#ifdef VBOXVDMA
259	typedef struct VBOXVDMAHOST *PVBOXVDMAHOST;
260	#endif
261
262	typedef struct VGAState {
263	VGA_STATE_COMMON
264	#ifdef VBOX
265	/** end-of-common-state-marker */
266	uint32_t u32Marker;
267	/** The physical address the VRAM was assigned. */
268	RTGCPHYS32 GCPhysVRAM;
269	/** The R0 vram pointer... */
270	R0PTRTYPE(uint8_t *) vram_ptrR0;
271	/** Pointer to the GC vram mapping. */
272	RCPTRTYPE(uint8_t *) vram_ptrRC;
273	/** LFB was updated flag. */
274	bool fLFBUpdated;
275	/** Indicates if the GC extensions are enabled or not. */
276	bool fGCEnabled;
277	/** Indicates if the R0 extensions are enabled or not. */
278	bool fR0Enabled;
279	/** Flag indicating that there are dirty bits. This is used to optimize the handler resetting. */
280	bool fHasDirtyBits;
281	/** Flag indicating that the VGA memory in the 0xa0000-0xbffff region has been remapped to allow direct access. */
282	bool fRemappedVGA;
283	/** Whether to render the guest VRAM to the framebuffer memory. False only for some LFB modes. */
284	bool fRenderVRAM;
285	bool Padding1[2];
286
287	uint32_t cMonitors;
288
289	#ifdef VBOX_WITH_HGSMI
290	R3PTRTYPE(PHGSMIINSTANCE) pHGSMI;
291	#endif /* VBOX_WITH_HGSMI */
292	#ifdef VBOXVDMA
293	R3PTRTYPE(PVBOXVDMAHOST) pVdma;
294	#endif
295
296	/** Current refresh timer interval. */
297	uint32_t Padding2;
298	uint32_t cMilliesRefreshInterval;
299	/** Refresh timer handle - HC. */
300	PTMTIMERR3 RefreshTimer;
301
302	/** Bitmap tracking dirty pages. */
303	uint32_t au32DirtyBitmap[VGA_VRAM_MAX / PAGE_SIZE / 32];
304	/** Pointer to vgaGCLFBAccessHandler(). */
305	RTRCPTR RCPtrLFBHandler;
306	/** Pointer to the device instance - RC Ptr. */
307	PPDMDEVINSRC pDevInsRC;
308	/** Pointer to the device instance - R3 Ptr. */
309	PPDMDEVINSR3 pDevInsR3;
310	/** Pointer to the device instance - R0 Ptr. */
311	PPDMDEVINSR0 pDevInsR0;
312
313	/** The critical section. */
314	PDMCRITSECT lock;
315
316	/** LUN\#0: The display port base interface. */
317	PDMIBASE IBase;
318	/** LUN\#0: The display port interface. */
319	PDMIDISPLAYPORT IPort;
320	#if defined(VBOX_WITH_HGSMI) && defined(VBOX_WITH_VIDEOHWACCEL)
321	/** LUN\#0: VBVA callbacks interface */
322	PDMIDISPLAYVBVACALLBACKS IVBVACallbacks;
323	#else
324	# if HC_ARCH_BITS == 32
325	uint32_t Padding3;
326	# endif
327	#endif
328	/** Pointer to base interface of the driver. */
329	R3PTRTYPE(PPDMIBASE) pDrvBase;
330	/** Pointer to display connector interface of the driver. */
331	R3PTRTYPE(PPDMIDISPLAYCONNECTOR) pDrv;
332
333	/** The PCI device. */
334	PCIDEVICE Dev;
335
336	STAMPROFILE StatRZMemoryRead;
337	STAMPROFILE StatR3MemoryRead;
338	STAMPROFILE StatRZMemoryWrite;
339	STAMPROFILE StatR3MemoryWrite;
340	STAMCOUNTER StatMapPage; /*< Counts IOMMMIOMapMMIO2Page calls. /
341
342	/* Keep track of ring 0 latched accesses to the VGA MMIO memory. */
343	uint64_t u64LastLatchedAccess;
344	uint32_t cLatchAccesses;
345	uint16_t uMaskLatchAccess;
346	uint16_t iMask;
347
348	#ifdef VBE_BYTEWISE_IO
349	/** VBE read/write data/index flags */
350	uint8_t fReadVBEData;
351	uint8_t fWriteVBEData;
352	uint8_t fReadVBEIndex;
353	uint8_t fWriteVBEIndex;
354	/** VBE write data/index one byte buffer */
355	uint8_t cbWriteVBEData;
356	uint8_t cbWriteVBEIndex;
357	# ifdef VBE_NEW_DYN_LIST
358	/** VBE Extra Data write address one byte buffer */
359	uint8_t cbWriteVBEExtraAddress;
360	uint8_t Padding4;
361	# else
362	uint8_t Padding4[2];
363	# endif
364	#endif
365
366	#ifdef VBE_NEW_DYN_LIST
367	/** The VBE BIOS extra data. */
368	R3PTRTYPE(uint8_t *) pu8VBEExtraData;
369	/** The size of the VBE BIOS extra data. */
370	uint16_t cbVBEExtraData;
371	/** The VBE BIOS current memory address. */
372	uint16_t u16VBEExtraAddress;
373	uint16_t Padding5[2];
374	#endif
375	/** Current logo data offset. */
376	uint32_t offLogoData;
377	/** The size of the BIOS logo data. */
378	uint32_t cbLogo;
379	/** The BIOS logo data. */
380	R3PTRTYPE(uint8_t *) pu8Logo;
381	/** The name of the logo file. */
382	R3PTRTYPE(char *) pszLogoFile;
383	/** Bitmap image data. */
384	R3PTRTYPE(uint8_t *) pu8LogoBitmap;
385	/** Current logo command. */
386	uint16_t LogoCommand;
387	/** Bitmap width. */
388	uint16_t cxLogo;
389	/** Bitmap height. */
390	uint16_t cyLogo;
391	/** Bitmap planes. */
392	uint16_t cLogoPlanes;
393	/** Bitmap depth. */
394	uint16_t cLogoBits;
395	/** Bitmap compression. */
396	uint16_t LogoCompression;
397	/** Bitmap colors used. */
398	uint16_t cLogoUsedColors;
399	/** Palette size. */
400	uint16_t cLogoPalEntries;
401	/** Clear screen flag. */
402	uint8_t fLogoClearScreen;
403	uint8_t Padding6[7];
404	/** Palette data. */
405	uint32_t au32LogoPalette[256];
406	#endif /* VBOX */
407	#ifdef VBOX_WITH_HGSMI
408	/** Base port in the assigned PCI I/O space. */
409	RTIOPORT IOPortBase;
410	#ifdef VBOXVDMA
411	/* specifies guest driver caps, i.e. whether it can handle IRQs from the adapter,
412	* the way it can handle assync HGSMI command completion, etc. */
413	uint32_t fGuestCaps;
414	#endif
415
416	uint8_t Padding7[6];
417	#endif /* VBOX_WITH_HGSMI */
418	} VGAState;
419	#ifdef VBOX
420	/** VGA state. */
421	typedef VGAState VGASTATE;
422	/** Pointer to the VGA state. */
423	typedef VGASTATE *PVGASTATE;
424	#endif
425
426	#ifdef VBE_NEW_DYN_LIST
427	/**
428	* VBE Bios Extra Data structure.
429	* @remark duplicated in vbe.h.
430	*/
431	typedef struct VBEHeader
432	{
433	/** Signature (VBEHEADER_MAGIC). */
434	uint16_t u16Signature;
435	/** Data size. */
436	uint16_t cbData;
437	} VBEHeader;
438
439	/** VBE Extra Data. */
440	typedef VBEHeader VBEHEADER;
441	/** Pointer to the VBE Extra Data. */
442	typedef VBEHEADER *PVBEHEADER;
443
444	/** The value of the VBEHEADER::u16Signature field.
445	* @remark duplicated in vbe.h. */
446	#define VBEHEADER_MAGIC 0x77CC
447
448	/** The extra port which is used to read the mode list.
449	* @remark duplicated in vbe.h. */
450	#define VBE_EXTRA_PORT 0x3b6
451
452	/** The extra port which is used for debug printf.
453	* @remark duplicated in vbe.h. */
454	#define VBE_PRINTF_PORT 0x3b7
455
456	#endif /* VBE_NEW_DYN_LIST */
457
458	#if !defined(VBOX) \|\| defined(IN_RING3)
459	static inline int c6_to_8(int v)
460	{
461	int b;
462	v &= 0x3f;
463	b = v & 1;
464	return (v << 2) \| (b << 1) \| b;
465	}
466	#endif /* !VBOX \|\| IN_RING3 */
467
468
469	#ifdef VBOX_WITH_HGSMI
470	int VBVAInit (PVGASTATE pVGAState);
471	void VBVADestroy (PVGASTATE pVGAState);
472	int VBVAUpdateDisplay (PVGASTATE pVGAState);
473	void VBVAReset (PVGASTATE pVGAState);
474
475	bool VBVAIsEnabled(PVGASTATE pVGAState);
476
477	/* @return host-guest flags that were set on reset
478	* this allows the caller to make further cleaning when needed,
479	* e.g. reset the IRQ */
480	uint32_t HGSMIReset (PHGSMIINSTANCE pIns);
481
482	# ifdef VBOX_WITH_VIDEOHWACCEL
483	int vbvaVHWACommandCompleteAsynch(PPDMIDISPLAYVBVACALLBACKS pInterface, PVBOXVHWACMD pCmd);
484	int vbvaVHWAConstruct (PVGASTATE pVGAState);
485	int vbvaVHWADisable (PVGASTATE pVGAState);
486	int vbvaVHWAReset (PVGASTATE pVGAState);
487
488	int vboxVBVASaveStatePrep (PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
489	# endif
490
491	int vboxVBVASaveStateExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
492	int vboxVBVALoadStateExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t u32Version);
493	int vboxVBVALoadStateDone (PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
494
495	# ifdef VBOXVDMA
496	typedef struct VBOXVDMAHOST *PVBOXVDMAHOST;
497	int vboxVDMAConstruct(PVGASTATE pVGAState, struct VBOXVDMAHOST **ppVdma, uint32_t cPipeElements);
498	int vboxVDMADestruct(PVBOXVDMAHOST pVdma);
499	void vboxVDMAControl(PVBOXVDMAHOST pVdma, PVBOXVDMA_CTL pCmd);
500	void vboxVDMACommand(PVBOXVDMAHOST pVdma, PVBOXVDMACBUF_DR pCmd);
501	bool vboxVDMAIsEnabled(PVBOXVDMAHOST pVdma);
502	# endif /* VBOXVDMA */
503
504	#endif /* VBOX_WITH_HGSMI */
505
506	#ifndef VBOX
507	void vga_common_init(VGAState s, DisplayState ds, uint8_t *vga_ram_base,
508	unsigned long vga_ram_offset, int vga_ram_size);
509	uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);
510	void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val);
511	void vga_invalidate_scanlines(VGAState *s, int y1, int y2);
512
513	void vga_draw_cursor_line_8(uint8_t d1, const uint8_t src1,
514	int poffset, int w,
515	unsigned int color0, unsigned int color1,
516	unsigned int color_xor);
517	void vga_draw_cursor_line_16(uint8_t d1, const uint8_t src1,
518	int poffset, int w,
519	unsigned int color0, unsigned int color1,
520	unsigned int color_xor);
521	void vga_draw_cursor_line_32(uint8_t d1, const uint8_t src1,
522	int poffset, int w,
523	unsigned int color0, unsigned int color1,
524	unsigned int color_xor);
525
526	extern const uint8_t sr_mask[8];
527	extern const uint8_t gr_mask[16];
528	#endif /* !VBOX */
529

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA.h@ 29742

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