buffer.c@ 69496

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1	/*
2	* Copyright 2002-2005 Jason Edmeades
3	* Copyright 2002-2005 Raphael Junqueira
4	* Copyright 2004 Christian Costa
5	* Copyright 2005 Oliver Stieber
6	* Copyright 2007-2010 Stefan Dösinger for CodeWeavers
7	* Copyright 2009-2010 Henri Verbeet for CodeWeavers
8	*
9	* This library is free software; you can redistribute it and/or
10	* modify it under the terms of the GNU Lesser General Public
11	* License as published by the Free Software Foundation; either
12	* version 2.1 of the License, or (at your option) any later version.
13	*
14	* This library is distributed in the hope that it will be useful,
15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17	* Lesser General Public License for more details.
18	*
19	* You should have received a copy of the GNU Lesser General Public
20	* License along with this library; if not, write to the Free Software
21	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22	*
23	*/
24
25	/*
26	* Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
27	* other than GPL or LGPL is available it will apply instead, Oracle elects to use only
28	* the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
29	* a choice of LGPL license versions is made available with the language indicating
30	* that LGPLv2 or any later version may be used, or where a choice of which version
31	* of the LGPL is applied is otherwise unspecified.
32	*/
33
34	#include "config.h"
35	#include "wine/port.h"
36
37	#include "wined3d_private.h"
38
39	WINE_DEFAULT_DEBUG_CHANNEL(d3d);
40
41	#define VB_MAXDECLCHANGES 100 /* After that number of decl changes we stop converting */
42	#define VB_RESETDECLCHANGE 1000 /* Reset the decl changecount after that number of draws */
43	#define VB_MAXFULLCONVERSIONS 5 /* Number of full conversions before we stop converting */
44	#define VB_RESETFULLCONVS 20 /* Reset full conversion counts after that number of draws */
45
46	static inline BOOL buffer_add_dirty_area(struct wined3d_buffer *This, UINT offset, UINT size)
47	{
48	if (!This->buffer_object) return TRUE;
49
50	if (This->maps_size <= This->modified_areas)
51	{
52	void *new = HeapReAlloc(GetProcessHeap(), 0, This->maps,
53	This->maps_size * 2 * sizeof(*This->maps));
54	if (!new)
55	{
56	ERR("Out of memory\n");
57	return FALSE;
58	}
59	else
60	{
61	This->maps = new;
62	This->maps_size *= 2;
63	}
64	}
65
66	if(offset > This->resource.size \|\| offset + size > This->resource.size)
67	{
68	WARN("Invalid range dirtified, marking entire buffer dirty\n");
69	offset = 0;
70	size = This->resource.size;
71	}
72	else if(!offset && !size)
73	{
74	size = This->resource.size;
75	}
76
77	This->maps[This->modified_areas].offset = offset;
78	This->maps[This->modified_areas].size = size;
79	This->modified_areas++;
80	return TRUE;
81	}
82
83	static inline void buffer_clear_dirty_areas(struct wined3d_buffer *This)
84	{
85	This->modified_areas = 0;
86	}
87
88	static BOOL buffer_is_dirty(const struct wined3d_buffer *buffer)
89	{
90	return !!buffer->modified_areas;
91	}
92
93	static BOOL buffer_is_fully_dirty(const struct wined3d_buffer *buffer)
94	{
95	unsigned int i;
96
97	for (i = 0; i < buffer->modified_areas; ++i)
98	{
99	if (!buffer->maps[i].offset && buffer->maps[i].size == buffer->resource.size)
100	return TRUE;
101	}
102	return FALSE;
103	}
104
105	/* Context activation is done by the caller */
106	static void delete_gl_buffer(struct wined3d_buffer This, const struct wined3d_gl_info gl_info)
107	{
108	if(!This->buffer_object) return;
109
110	GL_EXTCALL(glDeleteBuffersARB(1, &This->buffer_object));
111	checkGLcall("glDeleteBuffersARB");
112	This->buffer_object = 0;
113
114	if(This->query)
115	{
116	wined3d_event_query_destroy(This->query);
117	This->query = NULL;
118	}
119	This->flags &= ~WINED3D_BUFFER_APPLESYNC;
120	}
121
122	/* Context activation is done by the caller. */
123	static void buffer_create_buffer_object(struct wined3d_buffer This, const struct wined3d_gl_info gl_info)
124	{
125	GLenum gl_usage = GL_STATIC_DRAW_ARB;
126	GLenum error;
127
128	TRACE("Creating an OpenGL vertex buffer object for wined3d_buffer %p with usage %s.\n",
129	This, debug_d3dusage(This->resource.usage));
130
131	/* Make sure that the gl error is cleared. Do not use checkGLcall
132	* here because checkGLcall just prints a fixme and continues. However,
133	* if an error during VBO creation occurs we can fall back to non-vbo operation
134	* with full functionality(but performance loss)
135	*/
136	while (gl_info->gl_ops.gl.p_glGetError() != GL_NO_ERROR);
137
138	/* Basically the FVF parameter passed to CreateVertexBuffer is no good.
139	* The vertex declaration from the device determines how the data in the
140	* buffer is interpreted. This means that on each draw call the buffer has
141	* to be verified to check if the rhw and color values are in the correct
142	* format. */
143
144	GL_EXTCALL(glGenBuffersARB(1, &This->buffer_object));
145	error = gl_info->gl_ops.gl.p_glGetError();
146	if (!This->buffer_object \|\| error != GL_NO_ERROR)
147	{
148	ERR("Failed to create a VBO with error %s (%#x)\n", debug_glerror(error), error);
149	goto fail;
150	}
151
152	if (This->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
153	device_invalidate_state(This->resource.device, STATE_INDEXBUFFER);
154	GL_EXTCALL(glBindBufferARB(This->buffer_type_hint, This->buffer_object));
155	error = gl_info->gl_ops.gl.p_glGetError();
156	if (error != GL_NO_ERROR)
157	{
158	ERR("Failed to bind the VBO with error %s (%#x)\n", debug_glerror(error), error);
159	goto fail;
160	}
161
162	if (This->resource.usage & WINED3DUSAGE_DYNAMIC)
163	{
164	TRACE("Buffer has WINED3DUSAGE_DYNAMIC set.\n");
165	gl_usage = GL_STREAM_DRAW_ARB;
166
167	if(gl_info->supported[APPLE_FLUSH_BUFFER_RANGE])
168	{
169	GL_EXTCALL(glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_FLUSHING_UNMAP_APPLE, GL_FALSE));
170	checkGLcall("glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_FLUSHING_UNMAP_APPLE, GL_FALSE)");
171	This->flags \|= WINED3D_BUFFER_FLUSH;
172
173	GL_EXTCALL(glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_FALSE));
174	checkGLcall("glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_FALSE)");
175	This->flags \|= WINED3D_BUFFER_APPLESYNC;
176	}
177	/* No setup is needed here for GL_ARB_map_buffer_range */
178	}
179
180	/* Reserve memory for the buffer. The amount of data won't change
181	* so we are safe with calling glBufferData once and
182	* calling glBufferSubData on updates. Upload the actual data in case
183	* we're not double buffering, so we can release the heap mem afterwards
184	*/
185	GL_EXTCALL(glBufferDataARB(This->buffer_type_hint, This->resource.size, This->resource.allocatedMemory, gl_usage));
186	error = gl_info->gl_ops.gl.p_glGetError();
187	if (error != GL_NO_ERROR)
188	{
189	ERR("glBufferDataARB failed with error %s (%#x)\n", debug_glerror(error), error);
190	goto fail;
191	}
192
193	This->buffer_object_size = This->resource.size;
194	This->buffer_object_usage = gl_usage;
195
196	if(This->flags & WINED3D_BUFFER_DOUBLEBUFFER)
197	{
198	if(!buffer_add_dirty_area(This, 0, 0))
199	{
200	ERR("buffer_add_dirty_area failed, this is not expected\n");
201	goto fail;
202	}
203	}
204	else
205	{
206	HeapFree(GetProcessHeap(), 0, This->resource.heapMemory);
207	This->resource.allocatedMemory = NULL;
208	This->resource.heapMemory = NULL;
209	}
210
211	return;
212
213	fail:
214	/* Clean up all vbo init, but continue because we can work without a vbo :-) */
215	ERR("Failed to create a vertex buffer object. Continuing, but performance issues may occur\n");
216	delete_gl_buffer(This, gl_info);
217	buffer_clear_dirty_areas(This);
218	}
219
220	static BOOL buffer_process_converted_attribute(struct wined3d_buffer *This,
221	const enum wined3d_buffer_conversion_type conversion_type,
222	const struct wined3d_stream_info_element attrib, DWORD stride_this_run
223	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
224	, DWORD *offset_this_run
225	#endif
226	)
227	{
228	DWORD attrib_size;
229	BOOL ret = FALSE;
230	unsigned int i;
231	#ifndef VBOX_WITH_WINE_FIX_BUFOFFSET
232	DWORD_PTR data;
233	#else
234	UINT stream_offset = (UINT)(attrib->data.addr - attrib->offset);
235	#endif
236
237	/* Check for some valid situations which cause us pain. One is if the buffer is used for
238	* constant attributes(stride = 0), the other one is if the buffer is used on two streams
239	* with different strides. In the 2nd case we might have to drop conversion entirely,
240	* it is possible that the same bytes are once read as FLOAT2 and once as UBYTE4N.
241	*/
242	if (!attrib->stride)
243	{
244	FIXME("%s used with stride 0, let's hope we get the vertex stride from somewhere else\n",
245	debug_d3dformat(attrib->format->id));
246	}
247	#ifndef VBOX_WITH_WINE_FIX_BUFOFFSET
248	else if(attrib->stride != stride_this_run && stride_this_run)
249	{
250	FIXME("Got two concurrent strides, %d and %d\n", attrib->stride, *stride_this_run);
251	}
252	#else
253	else if((attrib->stride != stride_this_run && stride_this_run)
254	\|\| (stream_offset != offset_this_run && offset_this_run))
255	{
256	ERR("Got two concurrent strides, %d and %d\n", attrib->stride, *stride_this_run);
257	}
258	#endif
259	else
260	{
261	*stride_this_run = attrib->stride;
262	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
263	*offset_this_run = stream_offset;
264	if (This->stride != *stride_this_run
265	\|\| This->offset != *offset_this_run)
266	#else
267	if (This->stride != *stride_this_run)
268	#endif
269	{
270	/* We rely that this happens only on the first converted attribute that is found,
271	* if at all. See above check
272	*/
273	TRACE("Reconverting because converted attributes occur, and the stride changed\n");
274	This->stride = *stride_this_run;
275	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
276	This->offset = *offset_this_run;
277	#endif
278	HeapFree(GetProcessHeap(), HEAP_ZERO_MEMORY, This->conversion_map);
279	This->conversion_map = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
280	sizeof(This->conversion_map) This->stride);
281	ret = TRUE;
282	}
283	}
284
285	#ifndef VBOX_WITH_WINE_FIX_BUFOFFSET
286	data = ((DWORD_PTR)attrib->data.addr) % This->stride;
287	#endif
288	attrib_size = attrib->format->component_count * attrib->format->component_size;
289	for (i = 0; i < attrib_size; ++i)
290	{
291	#ifndef VBOX_WITH_WINE_FIX_BUFOFFSET
292	DWORD_PTR idx = (data + i) % This->stride;
293	#else
294	DWORD_PTR idx = attrib->offset;
295	#endif
296	if (This->conversion_map[idx] != conversion_type)
297	{
298	TRACE("Byte %ld in vertex changed\n", idx);
299	TRACE("It was type %d, is %d now\n", This->conversion_map[idx], conversion_type);
300	ret = TRUE;
301	This->conversion_map[idx] = conversion_type;
302	}
303	}
304
305	return ret;
306	}
307
308	static BOOL buffer_check_attribute(struct wined3d_buffer This, const struct wined3d_stream_info si,
309	UINT attrib_idx, const BOOL check_d3dcolor, const BOOL check_position, const BOOL is_ffp_color,
310	DWORD *stride_this_run
311	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
312	, DWORD *offset_this_run
313	#endif
314	)
315	{
316	const struct wined3d_stream_info_element *attrib = &si->elements[attrib_idx];
317	enum wined3d_format_id format;
318	BOOL ret = FALSE;
319
320	/* Ignore attributes that do not have our vbo. After that check we can be sure that the attribute is
321	* there, on nonexistent attribs the vbo is 0.
322	*/
323	if (!(si->use_map & (1 << attrib_idx))
324	\|\| attrib->data.buffer_object != This->buffer_object)
325	return FALSE;
326
327	format = attrib->format->id;
328	/* Look for newly appeared conversion */
329	if (check_d3dcolor && format == WINED3DFMT_B8G8R8A8_UNORM)
330	{
331	ret = buffer_process_converted_attribute(This, CONV_D3DCOLOR, attrib, stride_this_run
332	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
333	, offset_this_run
334	#endif
335	);
336
337	if (!is_ffp_color) FIXME("Test for non-color fixed function WINED3DFMT_B8G8R8A8_UNORM format\n");
338	}
339	else if (check_position && si->position_transformed)
340	{
341	if (format != WINED3DFMT_R32G32B32A32_FLOAT)
342	{
343	FIXME("Unexpected format %s for transformed position.\n", debug_d3dformat(format));
344	return FALSE;
345	}
346
347	ret = buffer_process_converted_attribute(This, CONV_POSITIONT, attrib, stride_this_run
348	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
349	, offset_this_run
350	#endif
351	);
352	}
353	else if (This->conversion_map)
354	{
355	ret = buffer_process_converted_attribute(This, CONV_NONE, attrib, stride_this_run
356	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
357	, offset_this_run
358	#endif
359	);
360	}
361
362	return ret;
363	}
364
365	static BOOL buffer_find_decl(struct wined3d_buffer *This)
366	{
367	struct wined3d_device *device = This->resource.device;
368	const struct wined3d_adapter *adapter = device->adapter;
369	const struct wined3d_stream_info *si = &device->stream_info;
370	const struct wined3d_state *state = &device->stateBlock->state;
371	BOOL support_d3dcolor = adapter->gl_info.supported[ARB_VERTEX_ARRAY_BGRA];
372	BOOL support_xyzrhw = adapter->d3d_info.xyzrhw;
373	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
374	DWORD stride_this_run = 0;
375	DWORD offset_this_run = 0;
376	#else
377	UINT stride_this_run = 0;
378	#endif
379	BOOL ret = FALSE;
380
381	/* In d3d7 the vertex buffer declaration NEVER changes because it is stored in the d3d7 vertex buffer.
382	* Once we have our declaration there is no need to look it up again. Index buffers also never need
383	* conversion, so once the (empty) conversion structure is created don't bother checking again
384	*/
385	if (This->flags & WINED3D_BUFFER_HASDESC)
386	{
387	if(This->resource.usage & WINED3DUSAGE_STATICDECL) return FALSE;
388	}
389
390	if (use_vs(state))
391	{
392	TRACE("Vertex shaders used, no VBO conversion is needed\n");
393	if(This->conversion_map)
394	{
395	HeapFree(GetProcessHeap(), 0, This->conversion_map);
396	This->conversion_map = NULL;
397	This->stride = 0;
398	return TRUE;
399	}
400
401	return FALSE;
402	}
403
404	TRACE("Finding vertex buffer conversion information\n");
405	/* Certain declaration types need some fixups before we can pass them to
406	* opengl. This means D3DCOLOR attributes with fixed function vertex
407	* processing, FLOAT4 POSITIONT with fixed function, and FLOAT16 if
408	* GL_ARB_half_float_vertex is not supported.
409	*
410	* Note for d3d8 and d3d9:
411	* The vertex buffer FVF doesn't help with finding them, we have to use
412	* the decoded vertex declaration and pick the things that concern the
413	* current buffer. A problem with this is that this can change between
414	* draws, so we have to validate the information and reprocess the buffer
415	* if it changes, and avoid false positives for performance reasons.
416	* WineD3D doesn't even know the vertex buffer any more, it is managed
417	* by the client libraries and passed to SetStreamSource and ProcessVertices
418	* as needed.
419	*
420	* We have to distinguish between vertex shaders and fixed function to
421	* pick the way we access the strided vertex information.
422	*
423	* This code sets up a per-byte array with the size of the detected
424	* stride of the arrays in the buffer. For each byte we have a field
425	* that marks the conversion needed on this byte. For example, the
426	* following declaration with fixed function vertex processing:
427	*
428	* POSITIONT, FLOAT4
429	* NORMAL, FLOAT3
430	* DIFFUSE, FLOAT16_4
431	* SPECULAR, D3DCOLOR
432	*
433	* Will result in
434	* { POSITIONT }{ NORMAL }{ DIFFUSE }{SPECULAR }
435	* [P][P][P][P][P][P][P][P][P][P][P][P][P][P][P][P][0][0][0][0][0][0][0][0][0][0][0][0][F][F][F][F][F][F][F][F][C][C][C][C]
436	*
437	* Where in this example map P means 4 component position conversion, 0
438	* means no conversion, F means FLOAT16_2 conversion and C means D3DCOLOR
439	* conversion (red / blue swizzle).
440	*
441	* If we're doing conversion and the stride changes we have to reconvert
442	* the whole buffer. Note that we do not mind if the semantic changes,
443	* we only care for the conversion type. So if the NORMAL is replaced
444	* with a TEXCOORD, nothing has to be done, or if the DIFFUSE is replaced
445	* with a D3DCOLOR BLENDWEIGHT we can happily dismiss the change. Some
446	* conversion types depend on the semantic as well, for example a FLOAT4
447	* texcoord needs no conversion while a FLOAT4 positiont needs one
448	*/
449
450	ret = buffer_check_attribute(This, si, WINED3D_FFP_POSITION,
451	TRUE, !support_xyzrhw, FALSE, &stride_this_run
452	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
453	, &offset_this_run
454	#endif
455	) \|\| ret;
456	ret = buffer_check_attribute(This, si, WINED3D_FFP_NORMAL,
457	TRUE, FALSE, FALSE, &stride_this_run
458	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
459	, &offset_this_run
460	#endif
461	) \|\| ret;
462	ret = buffer_check_attribute(This, si, WINED3D_FFP_DIFFUSE,
463	!support_d3dcolor, FALSE, TRUE, &stride_this_run
464	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
465	, &offset_this_run
466	#endif
467	) \|\| ret;
468	ret = buffer_check_attribute(This, si, WINED3D_FFP_SPECULAR,
469	!support_d3dcolor, FALSE, TRUE, &stride_this_run
470	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
471	, &offset_this_run
472	#endif
473	) \|\| ret;
474	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD0,
475	TRUE, FALSE, FALSE, &stride_this_run
476	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
477	, &offset_this_run
478	#endif
479	) \|\| ret;
480	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD1,
481	TRUE, FALSE, FALSE, &stride_this_run
482	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
483	, &offset_this_run
484	#endif
485	) \|\| ret;
486	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD2,
487	TRUE, FALSE, FALSE, &stride_this_run
488	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
489	, &offset_this_run
490	#endif
491	) \|\| ret;
492	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD3,
493	TRUE, FALSE, FALSE, &stride_this_run
494	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
495	, &offset_this_run
496	#endif
497	) \|\| ret;
498	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD4,
499	TRUE, FALSE, FALSE, &stride_this_run
500	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
501	, &offset_this_run
502	#endif
503	) \|\| ret;
504	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD5,
505	TRUE, FALSE, FALSE, &stride_this_run
506	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
507	, &offset_this_run
508	#endif
509	) \|\| ret;
510	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD6,
511	TRUE, FALSE, FALSE, &stride_this_run
512	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
513	, &offset_this_run
514	#endif
515	) \|\| ret;
516	ret = buffer_check_attribute(This, si, WINED3D_FFP_TEXCOORD7,
517	TRUE, FALSE, FALSE, &stride_this_run
518	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
519	, &offset_this_run
520	#endif
521	) \|\| ret;
522
523	if (!stride_this_run && This->conversion_map)
524	{
525	/* Sanity test */
526	if (!ret) ERR("no converted attributes found, old conversion map exists, and no declaration change?\n");
527	HeapFree(GetProcessHeap(), 0, This->conversion_map);
528	This->conversion_map = NULL;
529	This->stride = 0;
530	}
531
532	if (ret) TRACE("Conversion information changed\n");
533
534	return ret;
535	}
536
537	static inline void fixup_d3dcolor(DWORD *dst_color)
538	{
539	DWORD src_color = *dst_color;
540
541	/* Color conversion like in drawStridedSlow. watch out for little endianity
542	* If we want that stuff to work on big endian machines too we have to consider more things
543	*
544	* 0xff000000: Alpha mask
545	* 0x00ff0000: Blue mask
546	* 0x0000ff00: Green mask
547	* 0x000000ff: Red mask
548	*/
549	*dst_color = 0;
550	dst_color \|= (src_color & 0xff00ff00); / Alpha Green */
551	dst_color \|= (src_color & 0x00ff0000) >> 16; / Red */
552	dst_color \|= (src_color & 0x000000ff) << 16; / Blue */
553	}
554
555	static inline void fixup_transformed_pos(float *p)
556	{
557	/* rhw conversion like in position_float4(). */
558	if (p[3] != 1.0f && p[3] != 0.0f)
559	{
560	float w = 1.0f / p[3];
561	p[0] *= w;
562	p[1] *= w;
563	p[2] *= w;
564	p[3] = w;
565	}
566	}
567
568	/* Context activation is done by the caller. */
569	void buffer_get_memory(struct wined3d_buffer buffer, const struct wined3d_gl_info gl_info,
570	struct wined3d_bo_address *data)
571	{
572	data->buffer_object = buffer->buffer_object;
573	if (!buffer->buffer_object)
574	{
575	if ((buffer->flags & WINED3D_BUFFER_CREATEBO) && !buffer->resource.map_count)
576	{
577	buffer_create_buffer_object(buffer, gl_info);
578	buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
579	if (buffer->buffer_object)
580	{
581	data->buffer_object = buffer->buffer_object;
582	data->addr = NULL;
583	return;
584	}
585	}
586	data->addr = buffer->resource.allocatedMemory;
587	}
588	else
589	{
590	data->addr = NULL;
591	}
592	}
593
594	ULONG CDECL wined3d_buffer_incref(struct wined3d_buffer *buffer)
595	{
596	ULONG refcount = InterlockedIncrement(&buffer->resource.ref);
597
598	TRACE("%p increasing refcount to %u.\n", buffer, refcount);
599
600	return refcount;
601	}
602
603	/* Context activation is done by the caller. */
604	BYTE buffer_get_sysmem(struct wined3d_buffer This, const struct wined3d_gl_info *gl_info)
605	{
606	/* AllocatedMemory exists if the buffer is double buffered or has no buffer object at all */
607	if(This->resource.allocatedMemory) return This->resource.allocatedMemory;
608
609	This->resource.heapMemory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->resource.size + RESOURCE_ALIGNMENT);
610	This->resource.allocatedMemory = (BYTE *)(((ULONG_PTR)This->resource.heapMemory + (RESOURCE_ALIGNMENT - 1)) & ~(RESOURCE_ALIGNMENT - 1));
611
612	if (This->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
613	device_invalidate_state(This->resource.device, STATE_INDEXBUFFER);
614
615	GL_EXTCALL(glBindBufferARB(This->buffer_type_hint, This->buffer_object));
616	GL_EXTCALL(glGetBufferSubDataARB(This->buffer_type_hint, 0, This->resource.size, This->resource.allocatedMemory));
617	This->flags \|= WINED3D_BUFFER_DOUBLEBUFFER;
618
619	return This->resource.allocatedMemory;
620	}
621
622	/* Do not call while under the GL lock. */
623	static void buffer_unload(struct wined3d_resource *resource)
624	{
625	struct wined3d_buffer *buffer = buffer_from_resource(resource);
626
627	TRACE("buffer %p.\n", buffer);
628
629	if (buffer->buffer_object)
630	{
631	struct wined3d_device *device = resource->device;
632	struct wined3d_context *context;
633
634	context = context_acquire(device, NULL);
635
636	/* Download the buffer, but don't permanently enable double buffering */
637	if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
638	{
639	buffer_get_sysmem(buffer, context->gl_info);
640	buffer->flags &= ~WINED3D_BUFFER_DOUBLEBUFFER;
641	}
642
643	delete_gl_buffer(buffer, context->gl_info);
644	buffer->flags \|= WINED3D_BUFFER_CREATEBO; /* Recreate the buffer object next load */
645	buffer_clear_dirty_areas(buffer);
646
647	context_release(context);
648
649	HeapFree(GetProcessHeap(), 0, buffer->conversion_map);
650	buffer->conversion_map = NULL;
651	buffer->stride = 0;
652	buffer->conversion_stride = 0;
653	buffer->flags &= ~WINED3D_BUFFER_HASDESC;
654	}
655
656	resource_unload(resource);
657	}
658
659	/* Do not call while under the GL lock. */
660	ULONG CDECL wined3d_buffer_decref(struct wined3d_buffer *buffer)
661	{
662	ULONG refcount = InterlockedDecrement(&buffer->resource.ref);
663	struct wined3d_context *context;
664
665	TRACE("%p decreasing refcount to %u.\n", buffer, refcount);
666
667	if (!refcount)
668	{
669	if (buffer->buffer_object)
670	{
671	context = context_acquire(buffer->resource.device, NULL);
672	delete_gl_buffer(buffer, context->gl_info);
673	context_release(context);
674
675	HeapFree(GetProcessHeap(), 0, buffer->conversion_map);
676	}
677
678	resource_cleanup(&buffer->resource);
679	buffer->resource.parent_ops->wined3d_object_destroyed(buffer->resource.parent);
680	HeapFree(GetProcessHeap(), 0, buffer->maps);
681	HeapFree(GetProcessHeap(), 0, buffer);
682	}
683
684	return refcount;
685	}
686
687	void * CDECL wined3d_buffer_get_parent(const struct wined3d_buffer *buffer)
688	{
689	TRACE("buffer %p.\n", buffer);
690
691	return buffer->resource.parent;
692	}
693
694	DWORD CDECL wined3d_buffer_set_priority(struct wined3d_buffer *buffer, DWORD priority)
695	{
696	return resource_set_priority(&buffer->resource, priority);
697	}
698
699	DWORD CDECL wined3d_buffer_get_priority(const struct wined3d_buffer *buffer)
700	{
701	return resource_get_priority(&buffer->resource);
702	}
703
704	/* The caller provides a context and binds the buffer */
705	static void buffer_sync_apple(struct wined3d_buffer This, DWORD flags, const struct wined3d_gl_info gl_info)
706	{
707	enum wined3d_event_query_result ret;
708
709	/* No fencing needs to be done if the app promises not to overwrite
710	* existing data. */
711	if (flags & WINED3D_MAP_NOOVERWRITE)
712	return;
713
714	if (flags & WINED3D_MAP_DISCARD)
715	{
716	GL_EXTCALL(glBufferDataARB(This->buffer_type_hint, This->resource.size, NULL, This->buffer_object_usage));
717	checkGLcall("glBufferDataARB\n");
718	return;
719	}
720
721	if(!This->query)
722	{
723	TRACE("Creating event query for buffer %p\n", This);
724
725	if (!wined3d_event_query_supported(gl_info))
726	{
727	FIXME("Event queries not supported, dropping async buffer locks.\n");
728	goto drop_query;
729	}
730
731	This->query = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This->query));
732	if (!This->query)
733	{
734	ERR("Failed to allocate event query memory, dropping async buffer locks.\n");
735	goto drop_query;
736	}
737
738	/* Since we don't know about old draws a glFinish is needed once */
739	gl_info->gl_ops.gl.p_glFinish();
740	return;
741	}
742	TRACE("Synchronizing buffer %p\n", This);
743	ret = wined3d_event_query_finish(This->query, This->resource.device);
744	switch(ret)
745	{
746	case WINED3D_EVENT_QUERY_NOT_STARTED:
747	case WINED3D_EVENT_QUERY_OK:
748	/* All done */
749	return;
750
751	case WINED3D_EVENT_QUERY_WRONG_THREAD:
752	WARN("Cannot synchronize buffer lock due to a thread conflict\n");
753	goto drop_query;
754
755	default:
756	ERR("wined3d_event_query_finish returned %u, dropping async buffer locks\n", ret);
757	goto drop_query;
758	}
759
760	drop_query:
761	if(This->query)
762	{
763	wined3d_event_query_destroy(This->query);
764	This->query = NULL;
765	}
766
767	gl_info->gl_ops.gl.p_glFinish();
768	GL_EXTCALL(glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_TRUE));
769	checkGLcall("glBufferParameteriAPPLE(This->buffer_type_hint, GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_TRUE)");
770	This->flags &= ~WINED3D_BUFFER_APPLESYNC;
771	}
772
773	/* The caller provides a GL context */
774	static void buffer_direct_upload(struct wined3d_buffer This, const struct wined3d_gl_info gl_info, DWORD flags)
775	{
776	BYTE *map;
777	UINT start = 0, len = 0;
778
779	/* This potentially invalidates the element array buffer binding, but the
780	* caller always takes care of this. */
781	GL_EXTCALL(glBindBufferARB(This->buffer_type_hint, This->buffer_object));
782	checkGLcall("glBindBufferARB");
783	if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
784	{
785	GLbitfield mapflags;
786	mapflags = GL_MAP_WRITE_BIT \| GL_MAP_FLUSH_EXPLICIT_BIT;
787	if (flags & WINED3D_BUFFER_DISCARD)
788	mapflags \|= GL_MAP_INVALIDATE_BUFFER_BIT;
789	if (flags & WINED3D_BUFFER_NOSYNC)
790	mapflags \|= GL_MAP_UNSYNCHRONIZED_BIT;
791	map = GL_EXTCALL(glMapBufferRange(This->buffer_type_hint, 0,
792	This->resource.size, mapflags));
793	checkGLcall("glMapBufferRange");
794	}
795	else
796	{
797	if (This->flags & WINED3D_BUFFER_APPLESYNC)
798	{
799	DWORD syncflags = 0;
800	if (flags & WINED3D_BUFFER_DISCARD)
801	syncflags \|= WINED3D_MAP_DISCARD;
802	if (flags & WINED3D_BUFFER_NOSYNC)
803	syncflags \|= WINED3D_MAP_NOOVERWRITE;
804	buffer_sync_apple(This, syncflags, gl_info);
805	}
806	map = GL_EXTCALL(glMapBufferARB(This->buffer_type_hint, GL_WRITE_ONLY_ARB));
807	checkGLcall("glMapBufferARB");
808	}
809	if (!map)
810	{
811	ERR("Failed to map opengl buffer\n");
812	return;
813	}
814
815	while (This->modified_areas)
816	{
817	This->modified_areas--;
818	start = This->maps[This->modified_areas].offset;
819	len = This->maps[This->modified_areas].size;
820
821	memcpy(map + start, This->resource.allocatedMemory + start, len);
822
823	if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
824	{
825	GL_EXTCALL(glFlushMappedBufferRange(This->buffer_type_hint, start, len));
826	checkGLcall("glFlushMappedBufferRange");
827	}
828	else if (This->flags & WINED3D_BUFFER_FLUSH)
829	{
830	GL_EXTCALL(glFlushMappedBufferRangeAPPLE(This->buffer_type_hint, start, len));
831	checkGLcall("glFlushMappedBufferRangeAPPLE");
832	}
833	}
834	GL_EXTCALL(glUnmapBufferARB(This->buffer_type_hint));
835	checkGLcall("glUnmapBufferARB");
836	}
837
838	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
839	static UINT wined3d_buffer_stream_offset_left(UINT x, UINT offset, UINT stride)
840	{
841	UINT off = ((UINT)(RT_ABS((INT)(x - offset))) % stride);
842	if (!off)
843	return x;
844	if (x > offset)
845	return x - off;
846
847	/* x < offset */
848	return x - stride + off;
849	}
850
851	static UINT wined3d_buffer_stream_offset_right(UINT x, UINT offset, UINT stride)
852	{
853	UINT left = wined3d_buffer_stream_offset_left(x, offset, stride);
854
855	if (left == x)
856	return x;
857	return left + stride;
858	}
859	#endif
860
861	/* Do not call while under the GL lock. */
862	void CDECL wined3d_buffer_preload(struct wined3d_buffer *buffer)
863	{
864	DWORD flags = buffer->flags & (WINED3D_BUFFER_NOSYNC \| WINED3D_BUFFER_DISCARD);
865	struct wined3d_device *device = buffer->resource.device;
866	UINT start = 0, end = 0, len = 0, vertices;
867	const struct wined3d_gl_info *gl_info;
868	struct wined3d_context *context;
869	BOOL decl_changed = FALSE;
870	#ifndef VBOX_WITH_WINE_FIX_BUFOFFSET
871	unsigned int i, j;
872	#endif
873	BYTE *data;
874	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
875	unsigned int j;
876	BYTE *cur_ptr;
877	UINT conv_start, conv_end;
878	#endif
879
880	TRACE("buffer %p.\n", buffer);
881
882	if (buffer->resource.map_count)
883	{
884	WARN("Buffer is mapped, skipping preload.\n");
885	return;
886	}
887
888	buffer->flags &= ~(WINED3D_BUFFER_NOSYNC \| WINED3D_BUFFER_DISCARD);
889
890	if (!buffer->buffer_object)
891	{
892	/* TODO: Make converting independent from VBOs */
893	if (buffer->flags & WINED3D_BUFFER_CREATEBO)
894	{
895	context = context_acquire(device, NULL);
896	buffer_create_buffer_object(buffer, context->gl_info);
897	context_release(context);
898	buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
899	}
900	else
901	{
902	/* Not doing any conversion */
903	return;
904	}
905	}
906
907	/* Reading the declaration makes only sense if the stateblock is finalized and the buffer bound to a stream */
908	if (device->isInDraw && buffer->resource.bind_count > 0)
909	{
910	decl_changed = buffer_find_decl(buffer);
911	buffer->flags \|= WINED3D_BUFFER_HASDESC;
912	}
913
914	if (!decl_changed && !(buffer->flags & WINED3D_BUFFER_HASDESC && buffer_is_dirty(buffer)))
915	{
916	++buffer->draw_count;
917	if (buffer->draw_count > VB_RESETDECLCHANGE)
918	buffer->decl_change_count = 0;
919	if (buffer->draw_count > VB_RESETFULLCONVS)
920	buffer->full_conversion_count = 0;
921	return;
922	}
923
924	/* If applications change the declaration over and over, reconverting all the time is a huge
925	* performance hit. So count the declaration changes and release the VBO if there are too many
926	* of them (and thus stop converting)
927	*/
928	if (decl_changed)
929	{
930	++buffer->decl_change_count;
931	buffer->draw_count = 0;
932
933	if (buffer->decl_change_count > VB_MAXDECLCHANGES
934	\|\| (buffer->conversion_map && (buffer->resource.usage & WINED3DUSAGE_DYNAMIC)))
935	{
936	FIXME("Too many declaration changes or converting dynamic buffer, stopping converting\n");
937
938	buffer_unload(&buffer->resource);
939	buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
940
941	/* The stream source state handler might have read the memory of
942	* the vertex buffer already and got the memory in the vbo which
943	* is not valid any longer. Dirtify the stream source to force a
944	* reload. This happens only once per changed vertexbuffer and
945	* should occur rather rarely. */
946	device_invalidate_state(device, STATE_STREAMSRC);
947	return;
948	}
949
950	/* The declaration changed, reload the whole buffer */
951	WARN("Reloading buffer because of decl change\n");
952	buffer_clear_dirty_areas(buffer);
953	if (!buffer_add_dirty_area(buffer, 0, 0))
954	{
955	ERR("buffer_add_dirty_area failed, this is not expected\n");
956	return;
957	}
958	/* Avoid unfenced updates, we might overwrite more areas of the buffer than the application
959	* cleared for unsynchronized updates
960	*/
961	flags = 0;
962	}
963	else
964	{
965	/* However, it is perfectly fine to change the declaration every now and then. We don't want a game that
966	* changes it every minute drop the VBO after VB_MAX_DECL_CHANGES minutes. So count draws without
967	* decl changes and reset the decl change count after a specific number of them
968	*/
969	if (buffer->conversion_map && buffer_is_fully_dirty(buffer))
970	{
971	++buffer->full_conversion_count;
972	if (buffer->full_conversion_count > VB_MAXFULLCONVERSIONS)
973	{
974	FIXME("Too many full buffer conversions, stopping converting.\n");
975	buffer_unload(&buffer->resource);
976	buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
977	if (buffer->resource.bind_count)
978	device_invalidate_state(device, STATE_STREAMSRC);
979	return;
980	}
981	}
982	else
983	{
984	++buffer->draw_count;
985	if (buffer->draw_count > VB_RESETDECLCHANGE)
986	buffer->decl_change_count = 0;
987	if (buffer->draw_count > VB_RESETFULLCONVS)
988	buffer->full_conversion_count = 0;
989	}
990	}
991
992	if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
993	device_invalidate_state(device, STATE_INDEXBUFFER);
994
995	if (!buffer->conversion_map)
996	{
997	/* That means that there is nothing to fixup. Just upload from
998	* buffer->resource.allocatedMemory directly into the vbo. Do not
999	* free the system memory copy because drawPrimitive may need it if
1000	* the stride is 0, for instancing emulation, vertex blending
1001	* emulation or shader emulation. */
1002	TRACE("No conversion needed.\n");
1003
1004	/* Nothing to do because we locked directly into the vbo */
1005	if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
1006	{
1007	return;
1008	}
1009
1010	context = context_acquire(device, NULL);
1011	buffer_direct_upload(buffer, context->gl_info, flags);
1012
1013	context_release(context);
1014	return;
1015	}
1016
1017	context = context_acquire(device, NULL);
1018	gl_info = context->gl_info;
1019
1020	if(!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
1021	{
1022	buffer_get_sysmem(buffer, gl_info);
1023	}
1024
1025	/* Now for each vertex in the buffer that needs conversion */
1026	vertices = buffer->resource.size / buffer->stride;
1027
1028	data = HeapAlloc(GetProcessHeap(), 0, buffer->resource.size);
1029
1030	while(buffer->modified_areas)
1031	{
1032	buffer->modified_areas--;
1033	start = buffer->maps[buffer->modified_areas].offset;
1034	len = buffer->maps[buffer->modified_areas].size;
1035	end = start + len;
1036
1037	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
1038	if (buffer->offset > UINT32_MAX)
1039	{
1040	ERR("negative offset, unexpected!");
1041	}
1042
1043	conv_start = wined3d_buffer_stream_offset_left(start, buffer->offset, buffer->stride);
1044	if (conv_start <= start)
1045	{
1046	start = conv_start;
1047	}
1048	else
1049	{
1050	/* <- < 0, add stride */
1051	conv_start += buffer->stride;
1052	}
1053
1054	Assert(conv_start < UINT32_MAX/3);
1055
1056	conv_end = wined3d_buffer_stream_offset_right(end, buffer->offset, buffer->stride);
1057	if (conv_end > end)
1058	{
1059	if (conv_end <= buffer->resource.size)
1060	end = conv_end;
1061	else
1062	conv_end -= buffer->stride;
1063	}
1064	else if (conv_end < end)
1065	{
1066	ERR("unexpected!");
1067	}
1068	else
1069	{
1070	end = conv_end;
1071	}
1072	#endif
1073	memcpy(data + start, buffer->resource.allocatedMemory + start, end - start);
1074
1075	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
1076	for (cur_ptr = data + conv_start; cur_ptr < data + conv_end; cur_ptr += buffer->stride)
1077	#else
1078	for (i = start / buffer->stride; i < min((end / buffer->stride) + 1, vertices); ++i)
1079	#endif
1080	{
1081	for (j = 0; j < buffer->stride; ++j)
1082	{
1083	switch (buffer->conversion_map[j])
1084	{
1085	case CONV_NONE:
1086	/* Done already */
1087	j += 3;
1088	break;
1089	case CONV_D3DCOLOR:
1090	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
1091	fixup_d3dcolor((DWORD *) (cur_ptr + j));
1092	#else
1093	fixup_d3dcolor((DWORD ) (data + i buffer->stride + j));
1094	#endif
1095	j += 3;
1096	break;
1097
1098	case CONV_POSITIONT:
1099	#ifdef VBOX_WITH_WINE_FIX_BUFOFFSET
1100	fixup_transformed_pos((float *) (cur_ptr + j));
1101	#else
1102	fixup_transformed_pos((float ) (data + i buffer->stride + j));
1103	#endif
1104	j += 15;
1105	break;
1106	default:
1107	FIXME("Unimplemented conversion %d in shifted conversion\n", buffer->conversion_map[j]);
1108	}
1109	}
1110	}
1111
1112	GL_EXTCALL(glBindBufferARB(buffer->buffer_type_hint, buffer->buffer_object));
1113	checkGLcall("glBindBufferARB");
1114	GL_EXTCALL(glBufferSubDataARB(buffer->buffer_type_hint, start, len, data + start));
1115	checkGLcall("glBufferSubDataARB");
1116	}
1117
1118	HeapFree(GetProcessHeap(), 0, data);
1119	context_release(context);
1120	}
1121
1122	static DWORD buffer_sanitize_flags(const struct wined3d_buffer *buffer, DWORD flags)
1123	{
1124	/* Not all flags make sense together, but Windows never returns an error.
1125	* Catch the cases that could cause issues. */
1126	if (flags & WINED3D_MAP_READONLY)
1127	{
1128	if (flags & WINED3D_MAP_DISCARD)
1129	{
1130	WARN("WINED3D_MAP_READONLY combined with WINED3D_MAP_DISCARD, ignoring flags.\n");
1131	return 0;
1132	}
1133	if (flags & WINED3D_MAP_NOOVERWRITE)
1134	{
1135	WARN("WINED3D_MAP_READONLY combined with WINED3D_MAP_NOOVERWRITE, ignoring flags.\n");
1136	return 0;
1137	}
1138	}
1139	else if ((flags & (WINED3D_MAP_DISCARD \| WINED3D_MAP_NOOVERWRITE))
1140	== (WINED3D_MAP_DISCARD \| WINED3D_MAP_NOOVERWRITE))
1141	{
1142	WARN("WINED3D_MAP_DISCARD and WINED3D_MAP_NOOVERWRITE used together, ignoring.\n");
1143	return 0;
1144	}
1145	else if (flags & (WINED3D_MAP_DISCARD \| WINED3D_MAP_NOOVERWRITE)
1146	&& !(buffer->resource.usage & WINED3DUSAGE_DYNAMIC))
1147	{
1148	WARN("DISCARD or NOOVERWRITE map on non-dynamic buffer, ignoring.\n");
1149	return 0;
1150	}
1151
1152	return flags;
1153	}
1154
1155	static GLbitfield buffer_gl_map_flags(DWORD d3d_flags)
1156	{
1157	GLbitfield ret = 0;
1158
1159	if (!(d3d_flags & WINED3D_MAP_READONLY))
1160	ret \|= GL_MAP_WRITE_BIT \| GL_MAP_FLUSH_EXPLICIT_BIT;
1161	if (!(d3d_flags & (WINED3D_MAP_DISCARD \| WINED3D_MAP_NOOVERWRITE)))
1162	ret \|= GL_MAP_READ_BIT;
1163
1164	if (d3d_flags & WINED3D_MAP_DISCARD)
1165	ret \|= GL_MAP_INVALIDATE_BUFFER_BIT;
1166	if (d3d_flags & WINED3D_MAP_NOOVERWRITE)
1167	ret \|= GL_MAP_UNSYNCHRONIZED_BIT;
1168
1169	return ret;
1170	}
1171
1172	struct wined3d_resource * CDECL wined3d_buffer_get_resource(struct wined3d_buffer *buffer)
1173	{
1174	TRACE("buffer %p.\n", buffer);
1175
1176	return &buffer->resource;
1177	}
1178
1179	HRESULT CDECL wined3d_buffer_map(struct wined3d_buffer buffer, UINT offset, UINT size, BYTE *data, DWORD flags)
1180	{
1181	BOOL dirty = buffer_is_dirty(buffer);
1182	LONG count;
1183
1184	TRACE("buffer %p, offset %u, size %u, data %p, flags %#x\n", buffer, offset, size, data, flags);
1185
1186	flags = buffer_sanitize_flags(buffer, flags);
1187	if (flags & WINED3D_MAP_DISCARD)
1188	{
1189	/* DISCARD invalidates the entire buffer, regardless of the specified
1190	* offset and size. Some applications also depend on the entire buffer
1191	* being uploaded in that case. Two such applications are Port Royale
1192	* and Darkstar One. */
1193	if (!buffer_add_dirty_area(buffer, 0, 0))
1194	return E_OUTOFMEMORY;
1195	}
1196	else if (!(flags & WINED3D_MAP_READONLY))
1197	{
1198	if (!buffer_add_dirty_area(buffer, offset, size))
1199	return E_OUTOFMEMORY;
1200	}
1201
1202	count = ++buffer->resource.map_count;
1203
1204	if (buffer->buffer_object)
1205	{
1206	if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER))
1207	{
1208	if (count == 1)
1209	{
1210	struct wined3d_device *device = buffer->resource.device;
1211	struct wined3d_context *context;
1212	const struct wined3d_gl_info *gl_info;
1213
1214	context = context_acquire(device, NULL);
1215	gl_info = context->gl_info;
1216
1217	if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
1218	context_invalidate_state(context, STATE_INDEXBUFFER);
1219	GL_EXTCALL(glBindBufferARB(buffer->buffer_type_hint, buffer->buffer_object));
1220
1221	if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
1222	{
1223	GLbitfield mapflags = buffer_gl_map_flags(flags);
1224	buffer->resource.allocatedMemory = GL_EXTCALL(glMapBufferRange(buffer->buffer_type_hint,
1225	0, buffer->resource.size, mapflags));
1226	checkGLcall("glMapBufferRange");
1227	}
1228	else
1229	{
1230	if (buffer->flags & WINED3D_BUFFER_APPLESYNC)
1231	buffer_sync_apple(buffer, flags, gl_info);
1232	buffer->resource.allocatedMemory = GL_EXTCALL(glMapBufferARB(buffer->buffer_type_hint,
1233	GL_READ_WRITE_ARB));
1234	checkGLcall("glMapBufferARB");
1235	}
1236
1237	if (((DWORD_PTR)buffer->resource.allocatedMemory) & (RESOURCE_ALIGNMENT - 1))
1238	{
1239	WARN("Pointer %p is not %u byte aligned.\n", buffer->resource.allocatedMemory, RESOURCE_ALIGNMENT);
1240
1241	GL_EXTCALL(glUnmapBufferARB(buffer->buffer_type_hint));
1242	checkGLcall("glUnmapBufferARB");
1243	buffer->resource.allocatedMemory = NULL;
1244
1245	if (buffer->resource.usage & WINED3DUSAGE_DYNAMIC)
1246	{
1247	/* The extra copy is more expensive than not using VBOs at
1248	* all on the Nvidia Linux driver, which is the only driver
1249	* that returns unaligned pointers
1250	*/
1251	TRACE("Dynamic buffer, dropping VBO\n");
1252	buffer_unload(&buffer->resource);
1253	buffer->flags &= ~WINED3D_BUFFER_CREATEBO;
1254	if (buffer->resource.bind_count)
1255	device_invalidate_state(device, STATE_STREAMSRC);
1256	}
1257	else
1258	{
1259	TRACE("Falling back to doublebuffered operation\n");
1260	buffer_get_sysmem(buffer, gl_info);
1261	}
1262	TRACE("New pointer is %p.\n", buffer->resource.allocatedMemory);
1263	}
1264	context_release(context);
1265	}
1266	}
1267	else
1268	{
1269	if (dirty)
1270	{
1271	if (buffer->flags & WINED3D_BUFFER_NOSYNC && !(flags & WINED3D_MAP_NOOVERWRITE))
1272	{
1273	buffer->flags &= ~WINED3D_BUFFER_NOSYNC;
1274	}
1275	}
1276	else if(flags & WINED3D_MAP_NOOVERWRITE)
1277	{
1278	buffer->flags \|= WINED3D_BUFFER_NOSYNC;
1279	}
1280
1281	if (flags & WINED3D_MAP_DISCARD)
1282	{
1283	buffer->flags \|= WINED3D_BUFFER_DISCARD;
1284	}
1285	}
1286	}
1287
1288	*data = buffer->resource.allocatedMemory + offset;
1289
1290	TRACE("Returning memory at %p (base %p, offset %u).\n", *data, buffer->resource.allocatedMemory, offset);
1291	/* TODO: check Flags compatibility with buffer->currentDesc.Usage (see MSDN) */
1292
1293	return WINED3D_OK;
1294	}
1295
1296	void CDECL wined3d_buffer_unmap(struct wined3d_buffer *buffer)
1297	{
1298	ULONG i;
1299
1300	TRACE("buffer %p.\n", buffer);
1301
1302	/* In the case that the number of Unmap calls > the
1303	* number of Map calls, d3d returns always D3D_OK.
1304	* This is also needed to prevent Map from returning garbage on
1305	* the next call (this will happen if the lock_count is < 0). */
1306	if (!buffer->resource.map_count)
1307	{
1308	WARN("Unmap called without a previous map call.\n");
1309	return;
1310	}
1311
1312	if (--buffer->resource.map_count)
1313	{
1314	/* Delay loading the buffer until everything is unlocked */
1315	TRACE("Ignoring unmap.\n");
1316	return;
1317	}
1318
1319	if (!(buffer->flags & WINED3D_BUFFER_DOUBLEBUFFER) && buffer->buffer_object)
1320	{
1321	struct wined3d_device *device = buffer->resource.device;
1322	const struct wined3d_gl_info *gl_info;
1323	struct wined3d_context *context;
1324
1325	context = context_acquire(device, NULL);
1326	gl_info = context->gl_info;
1327
1328	if (buffer->buffer_type_hint == GL_ELEMENT_ARRAY_BUFFER_ARB)
1329	context_invalidate_state(context, STATE_INDEXBUFFER);
1330	GL_EXTCALL(glBindBufferARB(buffer->buffer_type_hint, buffer->buffer_object));
1331
1332	if (gl_info->supported[ARB_MAP_BUFFER_RANGE])
1333	{
1334	for (i = 0; i < buffer->modified_areas; ++i)
1335	{
1336	GL_EXTCALL(glFlushMappedBufferRange(buffer->buffer_type_hint,
1337	buffer->maps[i].offset, buffer->maps[i].size));
1338	checkGLcall("glFlushMappedBufferRange");
1339	}
1340	}
1341	else if (buffer->flags & WINED3D_BUFFER_FLUSH)
1342	{
1343	for (i = 0; i < buffer->modified_areas; ++i)
1344	{
1345	GL_EXTCALL(glFlushMappedBufferRangeAPPLE(buffer->buffer_type_hint,
1346	buffer->maps[i].offset, buffer->maps[i].size));
1347	checkGLcall("glFlushMappedBufferRangeAPPLE");
1348	}
1349	}
1350
1351	GL_EXTCALL(glUnmapBufferARB(buffer->buffer_type_hint));
1352	if (wined3d_settings.strict_draw_ordering)
1353	gl_info->gl_ops.gl.p_glFlush(); /* Flush to ensure ordering across contexts. */
1354	context_release(context);
1355
1356	buffer->resource.allocatedMemory = NULL;
1357	buffer_clear_dirty_areas(buffer);
1358	}
1359	else if (buffer->flags & WINED3D_BUFFER_HASDESC)
1360	{
1361	wined3d_buffer_preload(buffer);
1362	}
1363	}
1364
1365	static const struct wined3d_resource_ops buffer_resource_ops =
1366	{
1367	buffer_unload,
1368	};
1369
1370	static HRESULT buffer_init(struct wined3d_buffer buffer, struct wined3d_device device,
1371	UINT size, DWORD usage, enum wined3d_format_id format_id, enum wined3d_pool pool, GLenum bind_hint,
1372	const char data, void parent, const struct wined3d_parent_ops *parent_ops)
1373	{
1374	const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1375	const struct wined3d_format *format = wined3d_get_format(gl_info, format_id);
1376	HRESULT hr;
1377	BOOL dynamic_buffer_ok;
1378
1379	if (!size)
1380	{
1381	WARN("Size 0 requested, returning WINED3DERR_INVALIDCALL\n");
1382	return WINED3DERR_INVALIDCALL;
1383	}
1384
1385	hr = resource_init(&buffer->resource, device, WINED3D_RTYPE_BUFFER, format,
1386	WINED3D_MULTISAMPLE_NONE, 0, usage, pool, size, 1, 1, size,
1387	parent, parent_ops, &buffer_resource_ops
1388	#ifdef VBOX_WITH_WDDM
1389	, NULL, NULL /* <- no need this info here so far */
1390	#endif
1391	);
1392	if (FAILED(hr))
1393	{
1394	WARN("Failed to initialize resource, hr %#x\n", hr);
1395	return hr;
1396	}
1397	buffer->buffer_type_hint = bind_hint;
1398
1399	TRACE("size %#x, usage %#x, format %s, memory @ %p, iface @ %p.\n", buffer->resource.size, buffer->resource.usage,
1400	debug_d3dformat(buffer->resource.format->id), buffer->resource.allocatedMemory, buffer);
1401
1402	if (device->create_parms.flags & WINED3DCREATE_SOFTWARE_VERTEXPROCESSING)
1403	{
1404	/* SWvp always returns the same pointer in buffer maps and retains data in DISCARD maps.
1405	* Keep a system memory copy of the buffer to provide the same behavior to the application.
1406	* Still use a VBO to support OpenGL 3 core contexts. */
1407	TRACE("Using doublebuffer mode because of software vertex processing\n");
1408	buffer->flags \|= WINED3D_BUFFER_DOUBLEBUFFER;
1409	}
1410
1411	dynamic_buffer_ok = gl_info->supported[APPLE_FLUSH_BUFFER_RANGE] \|\| gl_info->supported[ARB_MAP_BUFFER_RANGE];
1412
1413	/* Observations show that drawStridedSlow is faster on dynamic VBs than converting +
1414	* drawStridedFast (half-life 2 and others).
1415	*
1416	* Basically converting the vertices in the buffer is quite expensive, and observations
1417	* show that drawStridedSlow is faster than converting + uploading + drawStridedFast.
1418	* Therefore do not create a VBO for WINED3DUSAGE_DYNAMIC buffers.
1419	*/
1420	if (!gl_info->supported[ARB_VERTEX_BUFFER_OBJECT])
1421	{
1422	TRACE("Not creating a vbo because GL_ARB_vertex_buffer is not supported\n");
1423	}
1424	#ifndef VBOX_WITH_WDDM /* @todo: extend this to VBOX in general */
1425	else if(buffer->resource.pool == WINED3D_POOL_SYSTEM_MEM)
1426	{
1427	TRACE("Not creating a vbo because the vertex buffer is in system memory\n");
1428	}
1429	else if(!dynamic_buffer_ok && (buffer->resource.usage & WINED3DUSAGE_DYNAMIC))
1430	{
1431	TRACE("Not creating a vbo because the buffer has dynamic usage and no GL support\n");
1432	}
1433	#endif
1434	else
1435	{
1436	buffer->flags \|= WINED3D_BUFFER_CREATEBO;
1437	}
1438
1439	if (data)
1440	{
1441	BYTE *ptr;
1442
1443	hr = wined3d_buffer_map(buffer, 0, size, &ptr, 0);
1444	if (FAILED(hr))
1445	{
1446	ERR("Failed to map buffer, hr %#x\n", hr);
1447	buffer_unload(&buffer->resource);
1448	resource_cleanup(&buffer->resource);
1449	return hr;
1450	}
1451
1452	memcpy(ptr, data, size);
1453
1454	wined3d_buffer_unmap(buffer);
1455	}
1456
1457	buffer->maps = HeapAlloc(GetProcessHeap(), 0, sizeof(*buffer->maps));
1458	if (!buffer->maps)
1459	{
1460	ERR("Out of memory\n");
1461	buffer_unload(&buffer->resource);
1462	resource_cleanup(&buffer->resource);
1463	return E_OUTOFMEMORY;
1464	}
1465	buffer->maps_size = 1;
1466
1467	return WINED3D_OK;
1468	}
1469
1470	HRESULT CDECL wined3d_buffer_create(struct wined3d_device device, struct wined3d_buffer_desc desc, const void *data,
1471	void parent, const struct wined3d_parent_ops parent_ops, struct wined3d_buffer **buffer)
1472	{
1473	struct wined3d_buffer *object;
1474	HRESULT hr;
1475
1476	TRACE("device %p, desc %p, data %p, parent %p, buffer %p\n", device, desc, data, parent, buffer);
1477
1478	object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
1479	if (!object)
1480	return E_OUTOFMEMORY;
1481
1482	FIXME("Ignoring access flags (pool)\n");
1483
1484	hr = buffer_init(object, device, desc->byte_width, desc->usage, WINED3DFMT_UNKNOWN,
1485	WINED3D_POOL_MANAGED, GL_ARRAY_BUFFER_ARB, data, parent, parent_ops);
1486	if (FAILED(hr))
1487	{
1488	WARN("Failed to initialize buffer, hr %#x.\n", hr);
1489	HeapFree(GetProcessHeap(), 0, object);
1490	return hr;
1491	}
1492	object->desc = *desc;
1493
1494	TRACE("Created buffer %p.\n", object);
1495
1496	*buffer = object;
1497
1498	return WINED3D_OK;
1499	}
1500
1501	HRESULT CDECL wined3d_buffer_create_vb(struct wined3d_device *device, UINT size, DWORD usage, enum wined3d_pool pool,
1502	void parent, const struct wined3d_parent_ops parent_ops, struct wined3d_buffer **buffer)
1503	{
1504	struct wined3d_buffer *object;
1505	HRESULT hr;
1506
1507	TRACE("device %p, size %u, usage %#x, pool %#x, parent %p, parent_ops %p, buffer %p.\n",
1508	device, size, usage, pool, parent, parent_ops, buffer);
1509
1510	if (pool == WINED3D_POOL_SCRATCH)
1511	{
1512	/* The d3d9 tests shows that this is not allowed. It doesn't make much
1513	* sense anyway, SCRATCH buffers wouldn't be usable anywhere. */
1514	WARN("Vertex buffer in WINED3D_POOL_SCRATCH requested, returning WINED3DERR_INVALIDCALL.\n");
1515	*buffer = NULL;
1516	return WINED3DERR_INVALIDCALL;
1517	}
1518
1519	object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
1520	if (!object)
1521	{
1522	*buffer = NULL;
1523	return WINED3DERR_OUTOFVIDEOMEMORY;
1524	}
1525
1526	hr = buffer_init(object, device, size, usage, WINED3DFMT_VERTEXDATA,
1527	pool, GL_ARRAY_BUFFER_ARB, NULL, parent, parent_ops);
1528	if (FAILED(hr))
1529	{
1530	WARN("Failed to initialize buffer, hr %#x.\n", hr);
1531	HeapFree(GetProcessHeap(), 0, object);
1532	return hr;
1533	}
1534
1535	TRACE("Created buffer %p.\n", object);
1536	*buffer = object;
1537
1538	return WINED3D_OK;
1539	}
1540
1541	HRESULT CDECL wined3d_buffer_create_ib(struct wined3d_device *device, UINT size, DWORD usage, enum wined3d_pool pool,
1542	void parent, const struct wined3d_parent_ops parent_ops, struct wined3d_buffer **buffer)
1543	{
1544	struct wined3d_buffer *object;
1545	HRESULT hr;
1546
1547	TRACE("device %p, size %u, usage %#x, pool %#x, parent %p, parent_ops %p, buffer %p.\n",
1548	device, size, usage, pool, parent, parent_ops, buffer);
1549
1550	object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
1551	if (!object)
1552	{
1553	*buffer = NULL;
1554	return WINED3DERR_OUTOFVIDEOMEMORY;
1555	}
1556
1557	hr = buffer_init(object, device, size, usage \| WINED3DUSAGE_STATICDECL,
1558	WINED3DFMT_UNKNOWN, pool, GL_ELEMENT_ARRAY_BUFFER_ARB, NULL,
1559	parent, parent_ops);
1560	if (FAILED(hr))
1561	{
1562	WARN("Failed to initialize buffer, hr %#x\n", hr);
1563	HeapFree(GetProcessHeap(), 0, object);
1564	return hr;
1565	}
1566
1567	TRACE("Created buffer %p.\n", object);
1568	*buffer = object;
1569
1570	return WINED3D_OK;
1571	}

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source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Wine_new/wined3d/buffer.c@ 69496

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