drawprim.c@ 41283

Last change on this file since 41283 was 39130, checked in by vboxsync, 13 years ago
wddm: fix image inversion on Mac; debugging stuff
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1	/*
2	* WINED3D draw functions
3	*
4	* Copyright 2002-2004 Jason Edmeades
5	* Copyright 2002-2004 Raphael Junqueira
6	* Copyright 2004 Christian Costa
7	* Copyright 2005 Oliver Stieber
8	* Copyright 2006, 2008 Henri Verbeet
9	* Copyright 2007-2008 Stefan Dösinger for CodeWeavers
10	* Copyright 2009 Henri Verbeet for CodeWeavers
11	*
12	* This library is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU Lesser General Public
14	* License as published by the Free Software Foundation; either
15	* version 2.1 of the License, or (at your option) any later version.
16	*
17	* This library is distributed in the hope that it will be useful,
18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* Lesser General Public License for more details.
21	*
22	* You should have received a copy of the GNU Lesser General Public
23	* License along with this library; if not, write to the Free Software
24	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
25	*/
26
27	/*
28	* Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
29	* other than GPL or LGPL is available it will apply instead, Oracle elects to use only
30	* the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
31	* a choice of LGPL license versions is made available with the language indicating
32	* that LGPLv2 or any later version may be used, or where a choice of which version
33	* of the LGPL is applied is otherwise unspecified.
34	*/
35
36	#include "config.h"
37	#include "wined3d_private.h"
38
39	#if defined(VBOX_WITH_WDDM)
40	#include "../VBox/VBoxDbgGl.h"
41	#endif
42
43	WINE_DEFAULT_DEBUG_CHANNEL(d3d_draw);
44	#define GLINFO_LOCATION This->adapter->gl_info
45
46	#include <stdio.h>
47	#include <math.h>
48
49	#define ceilf ceil
50
51	/* GL locking is done by the caller */
52	static void drawStridedFast(IWineD3DDevice *iface, GLenum primitive_type,
53	UINT count, UINT idx_size, const void *idx_data, UINT start_idx)
54	{
55	if (idx_size)
56	{
57	TRACE("(%p) : glElements(%x, %d, ...)\n", iface, primitive_type, count);
58
59	glDrawElements(primitive_type, count,
60	idx_size == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
61	(const char )idx_data + (idx_size start_idx));
62	checkGLcall("glDrawElements");
63	}
64	else
65	{
66	TRACE("(%p) : glDrawArrays(%#x, %d, %d)\n", iface, primitive_type, start_idx, count);
67
68	glDrawArrays(primitive_type, start_idx, count);
69	checkGLcall("glDrawArrays");
70	}
71	}
72
73	/*
74	* Actually draw using the supplied information.
75	* Slower GL version which extracts info about each vertex in turn
76	*/
77
78	/* GL locking is done by the caller */
79	static void drawStridedSlow(IWineD3DDevice iface, const struct wined3d_context context,
80	const struct wined3d_stream_info *si, UINT NumVertexes, GLenum glPrimType,
81	const void *idxData, UINT idxSize, UINT startIdx)
82	{
83	unsigned int textureNo = 0;
84	const WORD *pIdxBufS = NULL;
85	const DWORD *pIdxBufL = NULL;
86	UINT vx_index;
87	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
88	const UINT *streamOffset = This->stateBlock->streamOffset;
89	long SkipnStrides = startIdx + This->stateBlock->loadBaseVertexIndex;
90	BOOL pixelShader = use_ps(This->stateBlock);
91	BOOL specular_fog = FALSE;
92	const BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
93	const BYTE diffuse = NULL, specular = NULL, normal = NULL, position = NULL;
94	const struct wined3d_gl_info *gl_info = context->gl_info;
95	UINT texture_stages = gl_info->limits.texture_stages;
96	const struct wined3d_stream_info_element *element;
97	UINT num_untracked_materials;
98	DWORD tex_mask = 0;
99
100	TRACE("Using slow vertex array code\n");
101
102	/* Variable Initialization */
103	if (idxSize != 0) {
104	/* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
105	* If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
106	* idxData will be != NULL
107	*/
108	if(idxData == NULL) {
109	idxData = buffer_get_sysmem((struct wined3d_buffer *) This->stateBlock->pIndexData);
110	}
111
112	if (idxSize == 2) pIdxBufS = idxData;
113	else pIdxBufL = idxData;
114	} else if (idxData) {
115	ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
116	return;
117	}
118
119	/* Start drawing in GL */
120	glBegin(glPrimType);
121
122	if (si->use_map & (1 << WINED3D_FFP_POSITION))
123	{
124	element = &si->elements[WINED3D_FFP_POSITION];
125	position = element->data + streamOffset[element->stream_idx];
126	}
127
128	if (si->use_map & (1 << WINED3D_FFP_NORMAL))
129	{
130	element = &si->elements[WINED3D_FFP_NORMAL];
131	normal = element->data + streamOffset[element->stream_idx];
132	}
133	else
134	{
135	glNormal3f(0, 0, 0);
136	}
137
138	num_untracked_materials = context->num_untracked_materials;
139	if (si->use_map & (1 << WINED3D_FFP_DIFFUSE))
140	{
141	element = &si->elements[WINED3D_FFP_DIFFUSE];
142	diffuse = element->data + streamOffset[element->stream_idx];
143
144	if (num_untracked_materials && element->format_desc->format != WINED3DFMT_B8G8R8A8_UNORM)
145	FIXME("Implement diffuse color tracking from %s\n", debug_d3dformat(element->format_desc->format));
146	}
147	else
148	{
149	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
150	}
151
152	if (si->use_map & (1 << WINED3D_FFP_SPECULAR))
153	{
154	element = &si->elements[WINED3D_FFP_SPECULAR];
155	specular = element->data + streamOffset[element->stream_idx];
156
157	/* special case where the fog density is stored in the specular alpha channel */
158	if (This->stateBlock->renderState[WINED3DRS_FOGENABLE]
159	&& (This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == WINED3DFOG_NONE
160	\|\| si->elements[WINED3D_FFP_POSITION].format_desc->format == WINED3DFMT_R32G32B32A32_FLOAT)
161	&& This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == WINED3DFOG_NONE)
162	{
163	if (gl_info->supported[EXT_FOG_COORD])
164	{
165	if (element->format_desc->format == WINED3DFMT_B8G8R8A8_UNORM) specular_fog = TRUE;
166	else FIXME("Implement fog coordinates from %s\n", debug_d3dformat(element->format_desc->format));
167	}
168	else
169	{
170	static BOOL warned;
171
172	if (!warned)
173	{
174	/* TODO: Use the fog table code from old ddraw */
175	FIXME("Implement fog for transformed vertices in software\n");
176	warned = TRUE;
177	}
178	}
179	}
180	}
181	else if (gl_info->supported[EXT_SECONDARY_COLOR])
182	{
183	GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
184	}
185
186	for (textureNo = 0; textureNo < texture_stages; ++textureNo)
187	{
188	int coordIdx = This->stateBlock->textureState[textureNo][WINED3DTSS_TEXCOORDINDEX];
189	DWORD texture_idx = This->texUnitMap[textureNo];
190
191	if (!gl_info->supported[ARB_MULTITEXTURE] && textureNo > 0)
192	{
193	FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
194	continue;
195	}
196
197	if (!pixelShader && !This->stateBlock->textures[textureNo]) continue;
198
199	if (texture_idx == WINED3D_UNMAPPED_STAGE) continue;
200
201	if (coordIdx > 7)
202	{
203	TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
204	continue;
205	}
206	else if (coordIdx < 0)
207	{
208	FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
209	continue;
210	}
211
212	if (si->use_map & (1 << (WINED3D_FFP_TEXCOORD0 + coordIdx)))
213	{
214	element = &si->elements[WINED3D_FFP_TEXCOORD0 + coordIdx];
215	texCoords[coordIdx] = element->data + streamOffset[element->stream_idx];
216	tex_mask \|= (1 << textureNo);
217	}
218	else
219	{
220	TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
221	if (gl_info->supported[ARB_MULTITEXTURE])
222	GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
223	else
224	glTexCoord4f(0, 0, 0, 1);
225	}
226	}
227
228	/* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
229	* Guess it's not necessary(we crash then anyway) and would only eat CPU time
230	*/
231
232	/* For each primitive */
233	for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
234	UINT texture, tmp_tex_mask;
235	/* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
236	* function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
237	*/
238
239	/* For indexed data, we need to go a few more strides in */
240	if (idxData != NULL) {
241
242	/* Indexed so work out the number of strides to skip */
243	if (idxSize == 2)
244	SkipnStrides = pIdxBufS[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
245	else
246	SkipnStrides = pIdxBufL[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
247	}
248
249	tmp_tex_mask = tex_mask;
250	for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
251	{
252	int coord_idx;
253	const void *ptr;
254	DWORD texture_idx;
255
256	if (!(tmp_tex_mask & 1)) continue;
257
258	coord_idx = This->stateBlock->textureState[texture][WINED3DTSS_TEXCOORDINDEX];
259	ptr = texCoords[coord_idx] + (SkipnStrides * si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].stride);
260
261	texture_idx = This->texUnitMap[texture];
262	multi_texcoord_funcs[si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].format_desc->emit_idx](
263	GL_TEXTURE0_ARB + texture_idx, ptr);
264	}
265
266	/* Diffuse -------------------------------- */
267	if (diffuse) {
268	const void ptrToCoords = diffuse + SkipnStrides si->elements[WINED3D_FFP_DIFFUSE].stride;
269
270	diffuse_funcs[si->elements[WINED3D_FFP_DIFFUSE].format_desc->emit_idx](ptrToCoords);
271	if (num_untracked_materials)
272	{
273	DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
274	unsigned char i;
275	float color[4];
276
277	color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0f;
278	color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0f;
279	color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0f;
280	color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0f;
281
282	for (i = 0; i < num_untracked_materials; ++i)
283	{
284	glMaterialfv(GL_FRONT_AND_BACK, context->untracked_materials[i], color);
285	}
286	}
287	}
288
289	/* Specular ------------------------------- */
290	if (specular) {
291	const void ptrToCoords = specular + SkipnStrides si->elements[WINED3D_FFP_SPECULAR].stride;
292
293	specular_funcs[si->elements[WINED3D_FFP_SPECULAR].format_desc->emit_idx](ptrToCoords);
294
295	if (specular_fog)
296	{
297	DWORD specularColor = (const DWORD )ptrToCoords;
298	GL_EXTCALL(glFogCoordfEXT(specularColor >> 24));
299	}
300	}
301
302	/* Normal -------------------------------- */
303	if (normal != NULL) {
304	const void ptrToCoords = normal + SkipnStrides si->elements[WINED3D_FFP_NORMAL].stride;
305	normal_funcs[si->elements[WINED3D_FFP_NORMAL].format_desc->emit_idx](ptrToCoords);
306	}
307
308	/* Position -------------------------------- */
309	if (position) {
310	const void ptrToCoords = position + SkipnStrides si->elements[WINED3D_FFP_POSITION].stride;
311	position_funcs[si->elements[WINED3D_FFP_POSITION].format_desc->emit_idx](ptrToCoords);
312	}
313
314	/* For non indexed mode, step onto next parts */
315	if (idxData == NULL) {
316	++SkipnStrides;
317	}
318	}
319
320	glEnd();
321	checkGLcall("glEnd and previous calls");
322	}
323
324	/* GL locking is done by the caller */
325	static inline void send_attribute(IWineD3DDeviceImpl This, WINED3DFORMAT format, const UINT index, const void ptr)
326	{
327	const struct wined3d_gl_info *gl_info = &This->adapter->gl_info;
328
329	switch(format)
330	{
331	case WINED3DFMT_R32_FLOAT:
332	GL_EXTCALL(glVertexAttrib1fvARB(index, ptr));
333	break;
334	case WINED3DFMT_R32G32_FLOAT:
335	GL_EXTCALL(glVertexAttrib2fvARB(index, ptr));
336	break;
337	case WINED3DFMT_R32G32B32_FLOAT:
338	GL_EXTCALL(glVertexAttrib3fvARB(index, ptr));
339	break;
340	case WINED3DFMT_R32G32B32A32_FLOAT:
341	GL_EXTCALL(glVertexAttrib4fvARB(index, ptr));
342	break;
343
344	case WINED3DFMT_R8G8B8A8_UINT:
345	GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
346	break;
347	case WINED3DFMT_B8G8R8A8_UNORM:
348	if (gl_info->supported[ARB_VERTEX_ARRAY_BGRA])
349	{
350	const DWORD *src = ptr;
351	DWORD c = *src & 0xff00ff00;
352	c \|= (*src & 0xff0000) >> 16;
353	c \|= (*src & 0xff) << 16;
354	GL_EXTCALL(glVertexAttrib4NubvARB(index, (GLubyte *)&c));
355	break;
356	}
357	/* else fallthrough */
358	case WINED3DFMT_R8G8B8A8_UNORM:
359	GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
360	break;
361
362	case WINED3DFMT_R16G16_SINT:
363	GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
364	break;
365	case WINED3DFMT_R16G16B16A16_SINT:
366	GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
367	break;
368
369	case WINED3DFMT_R16G16_SNORM:
370	{
371	GLshort s[4] = {((const GLshort )ptr)[0], ((const GLshort )ptr)[1], 0, 1};
372	GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
373	break;
374	}
375	case WINED3DFMT_R16G16_UNORM:
376	{
377	GLushort s[4] = {((const GLushort )ptr)[0], ((const GLushort )ptr)[1], 0, 1};
378	GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
379	break;
380	}
381	case WINED3DFMT_R16G16B16A16_SNORM:
382	GL_EXTCALL(glVertexAttrib4NsvARB(index, ptr));
383	break;
384	case WINED3DFMT_R16G16B16A16_UNORM:
385	GL_EXTCALL(glVertexAttrib4NusvARB(index, ptr));
386	break;
387
388	case WINED3DFMT_R10G10B10A2_UINT:
389	FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
390	/glVertexAttrib3usvARB(instancedData[j], (GLushort ) ptr); Does not exist */
391	break;
392	case WINED3DFMT_R10G10B10A2_SNORM:
393	FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
394	/glVertexAttrib3NusvARB(instancedData[j], (GLushort ) ptr); Does not exist */
395	break;
396
397	case WINED3DFMT_R16G16_FLOAT:
398	/* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
399	* byte float according to the IEEE standard
400	*/
401	if (gl_info->supported[NV_HALF_FLOAT])
402	{
403	/* Not supported by GL_ARB_half_float_vertex */
404	GL_EXTCALL(glVertexAttrib2hvNV(index, ptr));
405	}
406	else
407	{
408	float x = float_16_to_32(((const unsigned short *)ptr) + 0);
409	float y = float_16_to_32(((const unsigned short *)ptr) + 1);
410	GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
411	}
412	break;
413	case WINED3DFMT_R16G16B16A16_FLOAT:
414	if (gl_info->supported[NV_HALF_FLOAT])
415	{
416	/* Not supported by GL_ARB_half_float_vertex */
417	GL_EXTCALL(glVertexAttrib4hvNV(index, ptr));
418	}
419	else
420	{
421	float x = float_16_to_32(((const unsigned short *)ptr) + 0);
422	float y = float_16_to_32(((const unsigned short *)ptr) + 1);
423	float z = float_16_to_32(((const unsigned short *)ptr) + 2);
424	float w = float_16_to_32(((const unsigned short *)ptr) + 3);
425	GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
426	}
427	break;
428
429	default:
430	ERR("Unexpected attribute format: %s\n", debug_d3dformat(format));
431	break;
432	}
433	}
434
435	/* GL locking is done by the caller */
436	static void drawStridedSlowVs(IWineD3DDevice iface, const struct wined3d_stream_info si, UINT numberOfVertices,
437	GLenum glPrimitiveType, const void *idxData, UINT idxSize, UINT startIdx)
438	{
439	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl ) iface;
440	long SkipnStrides = startIdx + This->stateBlock->loadBaseVertexIndex;
441	const WORD *pIdxBufS = NULL;
442	const DWORD *pIdxBufL = NULL;
443	UINT vx_index;
444	int i;
445	IWineD3DStateBlockImpl *stateblock = This->stateBlock;
446	const BYTE *ptr;
447
448	if (idxSize != 0) {
449	/* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
450	* If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
451	* idxData will be != NULL
452	*/
453	if(idxData == NULL) {
454	idxData = buffer_get_sysmem((struct wined3d_buffer *) This->stateBlock->pIndexData);
455	}
456
457	if (idxSize == 2) pIdxBufS = idxData;
458	else pIdxBufL = idxData;
459	} else if (idxData) {
460	ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
461	return;
462	}
463
464	/* Start drawing in GL */
465	glBegin(glPrimitiveType);
466
467	for (vx_index = 0; vx_index < numberOfVertices; ++vx_index) {
468	if (idxData != NULL) {
469
470	/* Indexed so work out the number of strides to skip */
471	if (idxSize == 2)
472	SkipnStrides = pIdxBufS[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
473	else
474	SkipnStrides = pIdxBufL[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
475	}
476
477	for (i = MAX_ATTRIBS - 1; i >= 0; i--)
478	{
479	if (!(si->use_map & (1 << i))) continue;
480
481	ptr = si->elements[i].data +
482	si->elements[i].stride * SkipnStrides +
483	stateblock->streamOffset[si->elements[i].stream_idx];
484
485	send_attribute(This, si->elements[i].format_desc->format, i, ptr);
486	}
487	SkipnStrides++;
488	}
489
490	glEnd();
491	}
492
493	/* GL locking is done by the caller */
494	static inline void drawStridedInstanced(IWineD3DDevice iface, const struct wined3d_stream_info si,
495	UINT numberOfVertices, GLenum glPrimitiveType, const void *idxData, UINT idxSize,
496	UINT startIdx)
497	{
498	UINT numInstances = 0, i;
499	int numInstancedAttribs = 0, j;
500	UINT instancedData[sizeof(si->elements) / sizeof(si->elements) / 16 */];
501	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl ) iface;
502	IWineD3DStateBlockImpl *stateblock = This->stateBlock;
503
504	if (idxSize == 0) {
505	/* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
506	* We don't support this for now
507	*
508	* Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
509	* But the StreamSourceFreq value has a different meaning in that situation.
510	*/
511	FIXME("Non-indexed instanced drawing is not supported\n");
512	return;
513	}
514
515	TRACE("(%p) : glElements(%x, %d, ...)\n", This, glPrimitiveType, numberOfVertices);
516
517	/* First, figure out how many instances we have to draw */
518	for(i = 0; i < MAX_STREAMS; i++) {
519	/* Look at the streams and take the first one which matches */
520	if(((stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INSTANCEDATA) \|\| (stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INDEXEDDATA)) && stateblock->streamSource[i]) {
521	/* D3D9 could set streamFreq 0 with (INSTANCEDATA or INDEXEDDATA) and then it is handled as 1. See d3d9/tests/visual.c-> stream_test() */
522	if(stateblock->streamFreq[i] == 0){
523	numInstances = 1;
524	} else {
525	numInstances = stateblock->streamFreq[i]; /* use the specified number of instances from the first matched stream. See d3d9/tests/visual.c-> stream_test() */
526	}
527	break; /* break, because only the first suitable value is interesting */
528	}
529	}
530
531	for (i = 0; i < sizeof(si->elements) / sizeof(*si->elements); ++i)
532	{
533	if (!(si->use_map & (1 << i))) continue;
534
535	if (stateblock->streamFlags[si->elements[i].stream_idx] & WINED3DSTREAMSOURCE_INSTANCEDATA)
536	{
537	instancedData[numInstancedAttribs] = i;
538	numInstancedAttribs++;
539	}
540	}
541
542	/* now draw numInstances instances :-) */
543	for(i = 0; i < numInstances; i++) {
544	/* Specify the instanced attributes using immediate mode calls */
545	for(j = 0; j < numInstancedAttribs; j++) {
546	const BYTE *ptr = si->elements[instancedData[j]].data +
547	si->elements[instancedData[j]].stride * i +
548	stateblock->streamOffset[si->elements[instancedData[j]].stream_idx];
549	if (si->elements[instancedData[j]].buffer_object)
550	{
551	struct wined3d_buffer *vb =
552	(struct wined3d_buffer *)stateblock->streamSource[si->elements[instancedData[j]].stream_idx];
553	ptr += (long) buffer_get_sysmem(vb);
554	}
555
556	send_attribute(This, si->elements[instancedData[j]].format_desc->format, instancedData[j], ptr);
557	}
558
559	glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
560	(const char )idxData+(idxSize startIdx));
561	checkGLcall("glDrawElements");
562	}
563	}
564
565	static inline void remove_vbos(IWineD3DDeviceImpl This, struct wined3d_stream_info s)
566	{
567	unsigned int i;
568
569	for (i = 0; i < (sizeof(s->elements) / sizeof(*s->elements)); ++i)
570	{
571	struct wined3d_stream_info_element *e;
572
573	if (!(s->use_map & (1 << i))) continue;
574
575	e = &s->elements[i];
576	if (e->buffer_object)
577	{
578	struct wined3d_buffer vb = (struct wined3d_buffer )This->stateBlock->streamSource[e->stream_idx];
579	e->buffer_object = 0;
580	e->data = (BYTE *)((unsigned long)e->data + (unsigned long)buffer_get_sysmem(vb));
581	}
582	}
583	}
584
585	/* Routine common to the draw primitive and draw indexed primitive routines */
586	void drawPrimitive(IWineD3DDevice iface, UINT index_count, UINT StartIdx, UINT idxSize, const void idxData)
587	{
588
589	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
590	IWineD3DSurfaceImpl *target;
591	struct wined3d_context *context;
592	unsigned int i;
593
594	if (!index_count) return;
595
596	if (This->stateBlock->renderState[WINED3DRS_COLORWRITEENABLE])
597	{
598	/* Invalidate the back buffer memory so LockRect will read it the next time */
599	for (i = 0; i < This->adapter->gl_info.limits.buffers; ++i)
600	{
601	target = (IWineD3DSurfaceImpl *)This->render_targets[i];
602	if (target)
603	{
604	IWineD3DSurface_LoadLocation((IWineD3DSurface *)target, SFLAG_INDRAWABLE, NULL);
605	IWineD3DSurface_ModifyLocation((IWineD3DSurface *)target, SFLAG_INDRAWABLE, TRUE);
606	}
607	}
608	}
609
610	/* Signals other modules that a drawing is in progress and the stateblock finalized */
611	This->isInDraw = TRUE;
612
613	context = context_acquire(This, This->render_targets[0], CTXUSAGE_DRAWPRIM);
614	if (!context->valid)
615	{
616	context_release(context);
617	WARN("Invalid context, skipping draw.\n");
618	return;
619	}
620
621	#if defined(VBOX_WITH_WDDM)
622	DBGL_CHECK_DRAWPRIM(context->gl_info, This);
623	#endif
624
625	if (This->stencilBufferTarget) {
626	/* Note that this depends on the context_acquire() call above to set
627	* This->render_offscreen properly. We don't currently take the
628	* Z-compare function into account, but we could skip loading the
629	* depthstencil for D3DCMP_NEVER and D3DCMP_ALWAYS as well. Also note
630	* that we never copy the stencil data.*/
631	DWORD location = context->render_offscreen ? SFLAG_DS_OFFSCREEN : SFLAG_DS_ONSCREEN;
632	if (This->stateBlock->renderState[WINED3DRS_ZWRITEENABLE]
633	\|\| This->stateBlock->renderState[WINED3DRS_ZENABLE])
634	surface_load_ds_location(This->stencilBufferTarget, context, location);
635	if (This->stateBlock->renderState[WINED3DRS_ZWRITEENABLE])
636	surface_modify_ds_location(This->stencilBufferTarget, location);
637	}
638
639	/* Ok, we will be updating the screen from here onwards so grab the lock */
640	ENTER_GL();
641	{
642	GLenum glPrimType = This->stateBlock->gl_primitive_type;
643	BOOL emulation = FALSE;
644	const struct wined3d_stream_info *stream_info = &This->strided_streams;
645	struct wined3d_stream_info stridedlcl;
646
647	if (!use_vs(This->stateBlock))
648	{
649	if (!This->strided_streams.position_transformed && context->num_untracked_materials
650	&& This->stateBlock->renderState[WINED3DRS_LIGHTING])
651	{
652	static BOOL warned;
653	if (!warned) {
654	FIXME("Using software emulation because not all material properties could be tracked\n");
655	warned = TRUE;
656	} else {
657	TRACE("Using software emulation because not all material properties could be tracked\n");
658	}
659	emulation = TRUE;
660	}
661	else if (context->fog_coord && This->stateBlock->renderState[WINED3DRS_FOGENABLE])
662	{
663	/* Either write a pipeline replacement shader or convert the specular alpha from unsigned byte
664	* to a float in the vertex buffer
665	*/
666	static BOOL warned;
667	if (!warned) {
668	FIXME("Using software emulation because manual fog coordinates are provided\n");
669	warned = TRUE;
670	} else {
671	TRACE("Using software emulation because manual fog coordinates are provided\n");
672	}
673	emulation = TRUE;
674	}
675
676	if(emulation) {
677	stream_info = &stridedlcl;
678	memcpy(&stridedlcl, &This->strided_streams, sizeof(stridedlcl));
679	remove_vbos(This, &stridedlcl);
680	}
681	}
682
683	if (This->useDrawStridedSlow \|\| emulation) {
684	/* Immediate mode drawing */
685	if (use_vs(This->stateBlock))
686	{
687	static BOOL warned;
688	if (!warned) {
689	FIXME("Using immediate mode with vertex shaders for half float emulation\n");
690	warned = TRUE;
691	} else {
692	TRACE("Using immediate mode with vertex shaders for half float emulation\n");
693	}
694	drawStridedSlowVs(iface, stream_info, index_count, glPrimType, idxData, idxSize, StartIdx);
695	} else {
696	drawStridedSlow(iface, context, stream_info, index_count,
697	glPrimType, idxData, idxSize, StartIdx);
698	}
699	} else if(This->instancedDraw) {
700	/* Instancing emulation with mixing immediate mode and arrays */
701	drawStridedInstanced(iface, &This->strided_streams, index_count,
702	glPrimType, idxData, idxSize, StartIdx);
703	} else {
704	drawStridedFast(iface, glPrimType, index_count, idxSize, idxData, StartIdx);
705	}
706	}
707
708	/* Finished updating the screen, restore lock */
709	LEAVE_GL();
710
711	for(i = 0; i < This->num_buffer_queries; i++)
712	{
713	wined3d_event_query_issue(This->buffer_queries[i], This);
714	}
715
716	if (wined3d_settings.strict_draw_ordering) wglFlush(); /* Flush to ensure ordering across contexts. */
717
718	context_release(context);
719
720	TRACE("Done all gl drawing\n");
721
722	/* Diagnostics */
723	#ifdef SHOW_FRAME_MAKEUP
724	{
725	static long int primCounter = 0;
726	/* NOTE: set primCounter to the value reported by drawprim
727	before you want to to write frame makeup to /tmp */
728	if (primCounter >= 0) {
729	WINED3DLOCKED_RECT r;
730	char buffer[80];
731	IWineD3DSurface_LockRect(This->render_targets[0], &r, NULL, WINED3DLOCK_READONLY);
732	sprintf(buffer, "/tmp/backbuffer_%ld.tga", primCounter);
733	TRACE("Saving screenshot %s\n", buffer);
734	IWineD3DSurface_SaveSnapshot(This->render_targets[0], buffer);
735	IWineD3DSurface_UnlockRect(This->render_targets[0]);
736
737	#ifdef SHOW_TEXTURE_MAKEUP
738	{
739	IWineD3DSurface *pSur;
740	int textureNo;
741	for (textureNo = 0; textureNo < MAX_COMBINED_SAMPLERS; ++textureNo) {
742	if (This->stateBlock->textures[textureNo] != NULL) {
743	sprintf(buffer, "/tmp/texture_%p_%ld_%d.tga", This->stateBlock->textures[textureNo], primCounter, textureNo);
744	TRACE("Saving texture %s\n", buffer);
745	if (IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]) == WINED3DRTYPE_TEXTURE) {
746	IWineD3DTexture_GetSurfaceLevel(This->stateBlock->textures[textureNo], 0, &pSur);
747	IWineD3DSurface_SaveSnapshot(pSur, buffer);
748	IWineD3DSurface_Release(pSur);
749	} else {
750	FIXME("base Texture isn't of type texture %d\n", IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]));
751	}
752	}
753	}
754	}
755	#endif
756	}
757	TRACE("drawprim #%ld\n", primCounter);
758	++primCounter;
759	}
760	#endif
761
762	/* Control goes back to the device, stateblock values may change again */
763	This->isInDraw = FALSE;
764	}
765
766	static void normalize_normal(float *n) {
767	float length = n[0] * n[0] + n[1] * n[1] + n[2] * n[2];
768	if (length == 0.0f) return;
769	length = sqrt(length);
770	n[0] = n[0] / length;
771	n[1] = n[1] / length;
772	n[2] = n[2] / length;
773	}
774
775	/* Tesselates a high order rectangular patch into single triangles using gl evaluators
776	*
777	* The problem is that OpenGL does not offer a direct way to return the tesselated primitives,
778	* and they can't be sent off for rendering directly either. Tesselating is slow, so we want
779	* to cache the patches in a vertex buffer. But more importantly, gl can't bind generated
780	* attributes to numbered shader attributes, so we have to store them and rebind them as needed
781	* in drawprim.
782	*
783	* To read back, the opengl feedback mode is used. This creates a problem because we want
784	* untransformed, unlit vertices, but feedback runs everything through transform and lighting.
785	* Thus disable lighting and set identity matrices to get unmodified colors and positions.
786	* To overcome clipping find the biggest x, y and z values of the vertices in the patch and scale
787	* them to [-1.0;+1.0] and set the viewport up to scale them back.
788	*
789	* Normals are more tricky: Draw white vertices with 3 directional lights, and calculate the
790	* resulting colors back to the normals.
791	*
792	* NOTE: This function activates a context for blitting, modifies matrices & viewport, but
793	* does not restore it because normally a draw follows immediately afterwards. The caller is
794	* responsible of taking care that either the gl states are restored, or the context activated
795	* for drawing to reset the lastWasBlit flag.
796	*/
797	HRESULT tesselate_rectpatch(IWineD3DDeviceImpl *This,
798	struct WineD3DRectPatch *patch) {
799	unsigned int i, j, num_quads, out_vertex_size, buffer_size, d3d_out_vertex_size;
800	float max_x = 0.0f, max_y = 0.0f, max_z = 0.0f, neg_z = 0.0f;
801	struct wined3d_stream_info stream_info;
802	struct wined3d_stream_info_element *e;
803	struct wined3d_context *context;
804	const BYTE *data;
805	const WINED3DRECTPATCH_INFO *info = &patch->RectPatchInfo;
806	DWORD vtxStride;
807	GLenum feedback_type;
808	GLfloat *feedbuffer;
809
810	/* Simply activate the context for blitting. This disables all the things we don't want and
811	* takes care of dirtifying. Dirtifying is preferred over pushing / popping, since drawing the
812	* patch (as opposed to normal draws) will most likely need different changes anyway. */
813	context = context_acquire(This, NULL, CTXUSAGE_BLIT);
814
815	/* First, locate the position data. This is provided in a vertex buffer in the stateblock.
816	* Beware of vbos
817	*/
818	device_stream_info_from_declaration(This, FALSE, &stream_info, NULL);
819
820	e = &stream_info.elements[WINED3D_FFP_POSITION];
821	if (e->buffer_object)
822	{
823	struct wined3d_buffer *vb;
824	vb = (struct wined3d_buffer *)This->stateBlock->streamSource[e->stream_idx];
825	e->data = (BYTE *)((unsigned long)e->data + (unsigned long)buffer_get_sysmem(vb));
826	}
827	vtxStride = e->stride;
828	data = e->data +
829	vtxStride * info->Stride * info->StartVertexOffsetHeight +
830	vtxStride * info->StartVertexOffsetWidth;
831
832	/* Not entirely sure about what happens with transformed vertices */
833	if (stream_info.position_transformed) FIXME("Transformed position in rectpatch generation\n");
834
835	if(vtxStride % sizeof(GLfloat)) {
836	/* glMap2f reads vertex sizes in GLfloats, the d3d stride is in bytes.
837	* I don't see how the stride could not be a multiple of 4, but make sure
838	* to check it
839	*/
840	ERR("Vertex stride is not a multiple of sizeof(GLfloat)\n");
841	}
842	if(info->Basis != WINED3DBASIS_BEZIER) {
843	FIXME("Basis is %s, how to handle this?\n", debug_d3dbasis(info->Basis));
844	}
845	if(info->Degree != WINED3DDEGREE_CUBIC) {
846	FIXME("Degree is %s, how to handle this?\n", debug_d3ddegree(info->Degree));
847	}
848
849	/* First, get the boundary cube of the input data */
850	for(j = 0; j < info->Height; j++) {
851	for(i = 0; i < info->Width; i++) {
852	const float v = (const float )(data + vtxStride * i + vtxStride * info->Stride * j);
853	if(fabs(v[0]) > max_x) max_x = fabs(v[0]);
854	if(fabs(v[1]) > max_y) max_y = fabs(v[1]);
855	if(fabs(v[2]) > max_z) max_z = fabs(v[2]);
856	if(v[2] < neg_z) neg_z = v[2];
857	}
858	}
859
860	/* This needs some improvements in the vertex decl code */
861	FIXME("Cannot find data to generate. Only generating position and normals\n");
862	patch->has_normals = TRUE;
863	patch->has_texcoords = FALSE;
864
865	ENTER_GL();
866
867	glMatrixMode(GL_PROJECTION);
868	checkGLcall("glMatrixMode(GL_PROJECTION)");
869	glLoadIdentity();
870	checkGLcall("glLoadIndentity()");
871	glScalef(1.0f / (max_x), 1.0f / (max_y), max_z == 0.0f ? 1.0f : 1.0f / (2.0f * max_z));
872	glTranslatef(0.0f, 0.0f, 0.5f);
873	checkGLcall("glScalef");
874	glViewport(-max_x, -max_y, 2 * (max_x), 2 * (max_y));
875	checkGLcall("glViewport");
876
877	/* Some states to take care of. If we're in wireframe opengl will produce lines, and confuse
878	* our feedback buffer parser
879	*/
880	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
881	checkGLcall("glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)");
882	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_FILLMODE));
883	if(patch->has_normals) {
884	static const GLfloat black[] = {0.0f, 0.0f, 0.0f, 0.0f};
885	static const GLfloat red[] = {1.0f, 0.0f, 0.0f, 0.0f};
886	static const GLfloat green[] = {0.0f, 1.0f, 0.0f, 0.0f};
887	static const GLfloat blue[] = {0.0f, 0.0f, 1.0f, 0.0f};
888	static const GLfloat white[] = {1.0f, 1.0f, 1.0f, 1.0f};
889	glEnable(GL_LIGHTING);
890	checkGLcall("glEnable(GL_LIGHTING)");
891	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, black);
892	checkGLcall("glLightModel for MODEL_AMBIENT");
893	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_AMBIENT));
894
895	for (i = 3; i < context->gl_info->limits.lights; ++i)
896	{
897	glDisable(GL_LIGHT0 + i);
898	checkGLcall("glDisable(GL_LIGHT0 + i)");
899	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(i));
900	}
901
902	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(0));
903	glLightfv(GL_LIGHT0, GL_DIFFUSE, red);
904	glLightfv(GL_LIGHT0, GL_SPECULAR, black);
905	glLightfv(GL_LIGHT0, GL_AMBIENT, black);
906	glLightfv(GL_LIGHT0, GL_POSITION, red);
907	glEnable(GL_LIGHT0);
908	checkGLcall("Setting up light 1");
909	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(1));
910	glLightfv(GL_LIGHT1, GL_DIFFUSE, green);
911	glLightfv(GL_LIGHT1, GL_SPECULAR, black);
912	glLightfv(GL_LIGHT1, GL_AMBIENT, black);
913	glLightfv(GL_LIGHT1, GL_POSITION, green);
914	glEnable(GL_LIGHT1);
915	checkGLcall("Setting up light 2");
916	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(2));
917	glLightfv(GL_LIGHT2, GL_DIFFUSE, blue);
918	glLightfv(GL_LIGHT2, GL_SPECULAR, black);
919	glLightfv(GL_LIGHT2, GL_AMBIENT, black);
920	glLightfv(GL_LIGHT2, GL_POSITION, blue);
921	glEnable(GL_LIGHT2);
922	checkGLcall("Setting up light 3");
923
924	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_MATERIAL);
925	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_COLORVERTEX));
926	glDisable(GL_COLOR_MATERIAL);
927	glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, black);
928	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
929	glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, white);
930	checkGLcall("Setting up materials");
931	}
932
933	/* Enable the needed maps.
934	* GL_MAP2_VERTEX_3 is needed for positional data.
935	* GL_AUTO_NORMAL to generate normals from the position. Do not use GL_MAP2_NORMAL.
936	* GL_MAP2_TEXTURE_COORD_4 for texture coords
937	*/
938	num_quads = ceilf(patch->numSegs[0]) * ceilf(patch->numSegs[1]);
939	out_vertex_size = 3 /* position */;
940	d3d_out_vertex_size = 3;
941	glEnable(GL_MAP2_VERTEX_3);
942	if(patch->has_normals && patch->has_texcoords) {
943	FIXME("Texcoords not handled yet\n");
944	feedback_type = GL_3D_COLOR_TEXTURE;
945	out_vertex_size += 8;
946	d3d_out_vertex_size += 7;
947	glEnable(GL_AUTO_NORMAL);
948	glEnable(GL_MAP2_TEXTURE_COORD_4);
949	} else if(patch->has_texcoords) {
950	FIXME("Texcoords not handled yet\n");
951	feedback_type = GL_3D_COLOR_TEXTURE;
952	out_vertex_size += 7;
953	d3d_out_vertex_size += 4;
954	glEnable(GL_MAP2_TEXTURE_COORD_4);
955	} else if(patch->has_normals) {
956	feedback_type = GL_3D_COLOR;
957	out_vertex_size += 4;
958	d3d_out_vertex_size += 3;
959	glEnable(GL_AUTO_NORMAL);
960	} else {
961	feedback_type = GL_3D;
962	}
963	checkGLcall("glEnable vertex attrib generation");
964
965	buffer_size = num_quads * out_vertex_size * 2 /* triangle list / 3 /* verts per tri */
966	+ 4 * num_quads /* 2 triangle markers per quad + num verts in tri */;
967	feedbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, buffer_size * sizeof(float) * 8);
968
969	glMap2f(GL_MAP2_VERTEX_3,
970	0.0f, 1.0f, vtxStride / sizeof(float), info->Width,
971	0.0f, 1.0f, info->Stride * vtxStride / sizeof(float), info->Height,
972	(const GLfloat *)data);
973	checkGLcall("glMap2f");
974	if(patch->has_texcoords) {
975	glMap2f(GL_MAP2_TEXTURE_COORD_4,
976	0.0f, 1.0f, vtxStride / sizeof(float), info->Width,
977	0.0f, 1.0f, info->Stride * vtxStride / sizeof(float), info->Height,
978	(const GLfloat *)data);
979	checkGLcall("glMap2f");
980	}
981	glMapGrid2f(ceilf(patch->numSegs[0]), 0.0f, 1.0f, ceilf(patch->numSegs[1]), 0.0f, 1.0f);
982	checkGLcall("glMapGrid2f");
983
984	glFeedbackBuffer(buffer_size * 2, feedback_type, feedbuffer);
985	checkGLcall("glFeedbackBuffer");
986	glRenderMode(GL_FEEDBACK);
987
988	glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
989	checkGLcall("glEvalMesh2");
990
991	i = glRenderMode(GL_RENDER);
992	if(i == -1) {
993	LEAVE_GL();
994	ERR("Feedback failed. Expected %d elements back\n", buffer_size);
995	HeapFree(GetProcessHeap(), 0, feedbuffer);
996	context_release(context);
997	return WINED3DERR_DRIVERINTERNALERROR;
998	} else if(i != buffer_size) {
999	LEAVE_GL();
1000	ERR("Unexpected amount of elements returned. Expected %d, got %d\n", buffer_size, i);
1001	HeapFree(GetProcessHeap(), 0, feedbuffer);
1002	context_release(context);
1003	return WINED3DERR_DRIVERINTERNALERROR;
1004	} else {
1005	TRACE("Got %d elements as expected\n", i);
1006	}
1007
1008	HeapFree(GetProcessHeap(), 0, patch->mem);
1009	patch->mem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, num_quads * 6 * d3d_out_vertex_size * sizeof(float) * 8);
1010	i = 0;
1011	for(j = 0; j < buffer_size; j += (3 /* num verts / out_vertex_size + 2 /* tri marker */)) {
1012	if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1013	ERR("Unexpected token: %f\n", feedbuffer[j]);
1014	continue;
1015	}
1016	if(feedbuffer[j + 1] != 3) {
1017	ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1018	continue;
1019	}
1020	/* Somehow there are different ideas about back / front facing, so fix up the
1021	* vertex order
1022	*/
1023	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 2 + 2]; /* x, triangle 2 */
1024	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 2 + 3]; /* y, triangle 2 */
1025	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 2 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 3 */
1026	if(patch->has_normals) {
1027	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 2 + 5];
1028	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 2 + 6];
1029	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 2 + 7];
1030	}
1031	i += d3d_out_vertex_size;
1032
1033	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 1 + 2]; /* x, triangle 2 */
1034	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 1 + 3]; /* y, triangle 2 */
1035	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 1 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 2 */
1036	if(patch->has_normals) {
1037	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 1 + 5];
1038	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 1 + 6];
1039	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 1 + 7];
1040	}
1041	i += d3d_out_vertex_size;
1042
1043	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 0 + 2]; /* x, triangle 1 */
1044	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 0 + 3]; /* y, triangle 1 */
1045	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 0 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 1 */
1046	if(patch->has_normals) {
1047	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 0 + 5];
1048	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 0 + 6];
1049	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 0 + 7];
1050	}
1051	i += d3d_out_vertex_size;
1052	}
1053
1054	if(patch->has_normals) {
1055	/* Now do the same with reverse light directions */
1056	static const GLfloat x[] = {-1.0f, 0.0f, 0.0f, 0.0f};
1057	static const GLfloat y[] = { 0.0f, -1.0f, 0.0f, 0.0f};
1058	static const GLfloat z[] = { 0.0f, 0.0f, -1.0f, 0.0f};
1059	glLightfv(GL_LIGHT0, GL_POSITION, x);
1060	glLightfv(GL_LIGHT1, GL_POSITION, y);
1061	glLightfv(GL_LIGHT2, GL_POSITION, z);
1062	checkGLcall("Setting up reverse light directions");
1063
1064	glRenderMode(GL_FEEDBACK);
1065	checkGLcall("glRenderMode(GL_FEEDBACK)");
1066	glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1067	checkGLcall("glEvalMesh2");
1068	i = glRenderMode(GL_RENDER);
1069	checkGLcall("glRenderMode(GL_RENDER)");
1070
1071	i = 0;
1072	for(j = 0; j < buffer_size; j += (3 /* num verts / out_vertex_size + 2 /* tri marker */)) {
1073	if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1074	ERR("Unexpected token: %f\n", feedbuffer[j]);
1075	continue;
1076	}
1077	if(feedbuffer[j + 1] != 3) {
1078	ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1079	continue;
1080	}
1081	if(patch->mem[i + 3] == 0.0f)
1082	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 2 + 5];
1083	if(patch->mem[i + 4] == 0.0f)
1084	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 2 + 6];
1085	if(patch->mem[i + 5] == 0.0f)
1086	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 2 + 7];
1087	normalize_normal(patch->mem + i + 3);
1088	i += d3d_out_vertex_size;
1089
1090	if(patch->mem[i + 3] == 0.0f)
1091	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 1 + 5];
1092	if(patch->mem[i + 4] == 0.0f)
1093	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 1 + 6];
1094	if(patch->mem[i + 5] == 0.0f)
1095	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 1 + 7];
1096	normalize_normal(patch->mem + i + 3);
1097	i += d3d_out_vertex_size;
1098
1099	if(patch->mem[i + 3] == 0.0f)
1100	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 0 + 5];
1101	if(patch->mem[i + 4] == 0.0f)
1102	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 0 + 6];
1103	if(patch->mem[i + 5] == 0.0f)
1104	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 0 + 7];
1105	normalize_normal(patch->mem + i + 3);
1106	i += d3d_out_vertex_size;
1107	}
1108	}
1109
1110	glDisable(GL_MAP2_VERTEX_3);
1111	glDisable(GL_AUTO_NORMAL);
1112	glDisable(GL_MAP2_NORMAL);
1113	glDisable(GL_MAP2_TEXTURE_COORD_4);
1114	checkGLcall("glDisable vertex attrib generation");
1115	LEAVE_GL();
1116
1117	context_release(context);
1118
1119	HeapFree(GetProcessHeap(), 0, feedbuffer);
1120
1121	vtxStride = 3 * sizeof(float);
1122	if(patch->has_normals) {
1123	vtxStride += 3 * sizeof(float);
1124	}
1125	if(patch->has_texcoords) {
1126	vtxStride += 4 * sizeof(float);
1127	}
1128	memset(&patch->strided, 0, sizeof(patch->strided));
1129	patch->strided.position.format = WINED3DFMT_R32G32B32_FLOAT;
1130	patch->strided.position.lpData = (BYTE *) patch->mem;
1131	patch->strided.position.dwStride = vtxStride;
1132
1133	if(patch->has_normals) {
1134	patch->strided.normal.format = WINED3DFMT_R32G32B32_FLOAT;
1135	patch->strided.normal.lpData = (BYTE ) patch->mem + 3 sizeof(float) /* pos */;
1136	patch->strided.normal.dwStride = vtxStride;
1137	}
1138	if(patch->has_texcoords) {
1139	patch->strided.texCoords[0].format = WINED3DFMT_R32G32B32A32_FLOAT;
1140	patch->strided.texCoords[0].lpData = (BYTE ) patch->mem + 3 sizeof(float) /* pos */;
1141	if(patch->has_normals) {
1142	patch->strided.texCoords[0].lpData += 3 * sizeof(float);
1143	}
1144	patch->strided.texCoords[0].dwStride = vtxStride;
1145	}
1146
1147	return WINED3D_OK;
1148	}

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source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/drawprim.c@ 41283

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