drawprim.c@ 22652

Last change on this file since 22652 was 22496, checked in by vboxsync, 15 years ago
crOpenGL: update wine to 1.1.27 and better fix for depthstencil surface refcounting
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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	*
11	* This library is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU Lesser General Public
13	* License as published by the Free Software Foundation; either
14	* version 2.1 of the License, or (at your option) any later version.
15	*
16	* This library is distributed in the hope that it will be useful,
17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	* Lesser General Public License for more details.
20	*
21	* You should have received a copy of the GNU Lesser General Public
22	* License along with this library; if not, write to the Free Software
23	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24	*/
25
26	/*
27	* Sun LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
28	* other than GPL or LGPL is available it will apply instead, Sun elects to use only
29	* the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
30	* a choice of LGPL license versions is made available with the language indicating
31	* that LGPLv2 or any later version may be used, or where a choice of which version
32	* of the LGPL is applied is otherwise unspecified.
33	*/
34
35	#include "config.h"
36	#include "wined3d_private.h"
37
38	WINE_DEFAULT_DEBUG_CHANNEL(d3d_draw);
39	#define GLINFO_LOCATION This->adapter->gl_info
40
41	#include <stdio.h>
42	#include <math.h>
43
44	#define ceilf ceil
45
46	/* GL locking is done by the caller */
47	static void drawStridedFast(IWineD3DDevice *iface, GLenum primitive_type,
48	UINT min_vertex_idx, UINT max_vertex_idx, UINT count, UINT idx_size,
49	const void *idx_data, UINT start_idx)
50	{
51	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
52
53	if (idx_size)
54	{
55	TRACE("(%p) : glElements(%x, %d, %d, ...)\n", This, primitive_type, count, min_vertex_idx);
56
57	#if 1
58	glDrawElements(primitive_type, count,
59	idx_size == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
60	(const char )idx_data + (idx_size start_idx));
61	checkGLcall("glDrawElements");
62	#else
63	glDrawRangeElements(primitive_type, min_vertex_idx, max_vertex_idx, count,
64	idx_size == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
65	(const char )idx_data + (idx_size start_idx));
66	checkGLcall("glDrawRangeElements");
67	#endif
68	}
69	else
70	{
71	TRACE("(%p) : glDrawArrays(%#x, %d, %d)\n", This, primitive_type, start_idx, count);
72
73	glDrawArrays(primitive_type, start_idx, count);
74	checkGLcall("glDrawArrays");
75	}
76	}
77
78	/*
79	* Actually draw using the supplied information.
80	* Slower GL version which extracts info about each vertex in turn
81	*/
82
83	/* GL locking is done by the caller */
84	static void drawStridedSlow(IWineD3DDevice iface, const struct wined3d_context context,
85	const struct wined3d_stream_info *si, UINT NumVertexes, GLenum glPrimType,
86	const void *idxData, UINT idxSize, UINT minIndex, UINT startIdx)
87	{
88	unsigned int textureNo = 0;
89	const WORD *pIdxBufS = NULL;
90	const DWORD *pIdxBufL = NULL;
91	UINT vx_index;
92	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
93	const UINT *streamOffset = This->stateBlock->streamOffset;
94	long SkipnStrides = startIdx + This->stateBlock->loadBaseVertexIndex;
95	BOOL pixelShader = use_ps(This->stateBlock);
96	BOOL specular_fog = FALSE;
97	UINT texture_stages = GL_LIMITS(texture_stages);
98	const BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
99	const BYTE diffuse = NULL, specular = NULL, normal = NULL, position = NULL;
100	const struct wined3d_stream_info_element *element;
101	UINT num_untracked_materials;
102	DWORD tex_mask = 0;
103
104	TRACE("Using slow vertex array code\n");
105
106	/* Variable Initialization */
107	if (idxSize != 0) {
108	/* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
109	* If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
110	* idxData will be != NULL
111	*/
112	if(idxData == NULL) {
113	idxData = buffer_get_sysmem((struct wined3d_buffer *) This->stateBlock->pIndexData);
114	}
115
116	if (idxSize == 2) pIdxBufS = idxData;
117	else pIdxBufL = idxData;
118	} else if (idxData) {
119	ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
120	return;
121	}
122
123	/* Start drawing in GL */
124	VTRACE(("glBegin(%x)\n", glPrimType));
125	glBegin(glPrimType);
126
127	element = &si->elements[WINED3D_FFP_POSITION];
128	if (element->data) position = element->data + streamOffset[element->stream_idx];
129
130	element = &si->elements[WINED3D_FFP_NORMAL];
131	if (element->data) normal = element->data + streamOffset[element->stream_idx];
132	else glNormal3f(0, 0, 0);
133
134	element = &si->elements[WINED3D_FFP_DIFFUSE];
135	if (element->data) diffuse = element->data + streamOffset[element->stream_idx];
136	else glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
137	num_untracked_materials = context->num_untracked_materials;
138	if (num_untracked_materials && element->format_desc->format != WINED3DFMT_A8R8G8B8)
139	FIXME("Implement diffuse color tracking from %s\n", debug_d3dformat(element->format_desc->format));
140
141	element = &si->elements[WINED3D_FFP_SPECULAR];
142	if (element->data)
143	{
144	specular = element->data + streamOffset[element->stream_idx];
145
146	/* special case where the fog density is stored in the specular alpha channel */
147	if (This->stateBlock->renderState[WINED3DRS_FOGENABLE]
148	&& (This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == WINED3DFOG_NONE
149	\|\| si->elements[WINED3D_FFP_POSITION].format_desc->format == WINED3DFMT_R32G32B32A32_FLOAT)
150	&& This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == WINED3DFOG_NONE)
151	{
152	if (GL_SUPPORT(EXT_FOG_COORD))
153	{
154	if (element->format_desc->format == WINED3DFMT_A8R8G8B8) specular_fog = TRUE;
155	else FIXME("Implement fog coordinates from %s\n", debug_d3dformat(element->format_desc->format));
156	}
157	else
158	{
159	static BOOL warned;
160
161	if (!warned)
162	{
163	/* TODO: Use the fog table code from old ddraw */
164	FIXME("Implement fog for transformed vertices in software\n");
165	warned = TRUE;
166	}
167	}
168	}
169	}
170	else if (GL_SUPPORT(EXT_SECONDARY_COLOR))
171	{
172	GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
173	}
174
175	for (textureNo = 0; textureNo < texture_stages; ++textureNo)
176	{
177	int coordIdx = This->stateBlock->textureState[textureNo][WINED3DTSS_TEXCOORDINDEX];
178	int texture_idx = This->texUnitMap[textureNo];
179
180	if (!GL_SUPPORT(ARB_MULTITEXTURE) && textureNo > 0)
181	{
182	FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
183	continue;
184	}
185
186	if (!pixelShader && !This->stateBlock->textures[textureNo]) continue;
187
188	if (texture_idx == -1) continue;
189
190	if (coordIdx > 7)
191	{
192	TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
193	continue;
194	}
195	else if (coordIdx < 0)
196	{
197	FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
198	continue;
199	}
200
201	element = &si->elements[WINED3D_FFP_TEXCOORD0 + coordIdx];
202	if (element->data)
203	{
204	texCoords[coordIdx] = element->data + streamOffset[element->stream_idx];
205	tex_mask \|= (1 << textureNo);
206	}
207	else
208	{
209	TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
210	if (GL_SUPPORT(ARB_MULTITEXTURE))
211	GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
212	else
213	glTexCoord4f(0, 0, 0, 1);
214	}
215	}
216
217	/* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
218	* Guess it's not necessary(we crash then anyway) and would only eat CPU time
219	*/
220
221	/* For each primitive */
222	for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
223	UINT texture, tmp_tex_mask;
224	/* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
225	* function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
226	*/
227
228	/* For indexed data, we need to go a few more strides in */
229	if (idxData != NULL) {
230
231	/* Indexed so work out the number of strides to skip */
232	if (idxSize == 2) {
233	VTRACE(("Idx for vertex %u = %u\n", vx_index, pIdxBufS[startIdx+vx_index]));
234	SkipnStrides = pIdxBufS[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
235	} else {
236	VTRACE(("Idx for vertex %u = %u\n", vx_index, pIdxBufL[startIdx+vx_index]));
237	SkipnStrides = pIdxBufL[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
238	}
239	}
240
241	tmp_tex_mask = tex_mask;
242	for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
243	{
244	int coord_idx;
245	const void *ptr;
246	int texture_idx;
247
248	if (!(tmp_tex_mask & 1)) continue;
249
250	coord_idx = This->stateBlock->textureState[texture][WINED3DTSS_TEXCOORDINDEX];
251	ptr = texCoords[coord_idx] + (SkipnStrides * si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].stride);
252
253	texture_idx = This->texUnitMap[texture];
254	multi_texcoord_funcs[si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].format_desc->emit_idx](
255	GL_TEXTURE0_ARB + texture_idx, ptr);
256	}
257
258	/* Diffuse -------------------------------- */
259	if (diffuse) {
260	const void ptrToCoords = diffuse + SkipnStrides si->elements[WINED3D_FFP_DIFFUSE].stride;
261
262	diffuse_funcs[si->elements[WINED3D_FFP_DIFFUSE].format_desc->emit_idx](ptrToCoords);
263	if (num_untracked_materials)
264	{
265	DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
266	unsigned char i;
267	float color[4];
268
269	color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0f;
270	color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0f;
271	color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0f;
272	color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0f;
273
274	for (i = 0; i < num_untracked_materials; ++i)
275	{
276	glMaterialfv(GL_FRONT_AND_BACK, context->untracked_materials[i], color);
277	}
278	}
279	}
280
281	/* Specular ------------------------------- */
282	if (specular) {
283	const void ptrToCoords = specular + SkipnStrides si->elements[WINED3D_FFP_SPECULAR].stride;
284
285	specular_funcs[si->elements[WINED3D_FFP_SPECULAR].format_desc->emit_idx](ptrToCoords);
286
287	if (specular_fog)
288	{
289	DWORD specularColor = (const DWORD )ptrToCoords;
290	GL_EXTCALL(glFogCoordfEXT(specularColor >> 24));
291	}
292	}
293
294	/* Normal -------------------------------- */
295	if (normal != NULL) {
296	const void ptrToCoords = normal + SkipnStrides si->elements[WINED3D_FFP_NORMAL].stride;
297	normal_funcs[si->elements[WINED3D_FFP_NORMAL].format_desc->emit_idx](ptrToCoords);
298	}
299
300	/* Position -------------------------------- */
301	if (position) {
302	const void ptrToCoords = position + SkipnStrides si->elements[WINED3D_FFP_POSITION].stride;
303	position_funcs[si->elements[WINED3D_FFP_POSITION].format_desc->emit_idx](ptrToCoords);
304	}
305
306	/* For non indexed mode, step onto next parts */
307	if (idxData == NULL) {
308	++SkipnStrides;
309	}
310	}
311
312	glEnd();
313	checkGLcall("glEnd and previous calls");
314	}
315
316	/* GL locking is done by the caller */
317	static inline void send_attribute(IWineD3DDeviceImpl This, WINED3DFORMAT format, const UINT index, const void ptr)
318	{
319	switch(format)
320	{
321	case WINED3DFMT_R32_FLOAT:
322	GL_EXTCALL(glVertexAttrib1fvARB(index, ptr));
323	break;
324	case WINED3DFMT_R32G32_FLOAT:
325	GL_EXTCALL(glVertexAttrib2fvARB(index, ptr));
326	break;
327	case WINED3DFMT_R32G32B32_FLOAT:
328	GL_EXTCALL(glVertexAttrib3fvARB(index, ptr));
329	break;
330	case WINED3DFMT_R32G32B32A32_FLOAT:
331	GL_EXTCALL(glVertexAttrib4fvARB(index, ptr));
332	break;
333
334	case WINED3DFMT_R8G8B8A8_UINT:
335	GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
336	break;
337	case WINED3DFMT_A8R8G8B8:
338	if (GL_SUPPORT(EXT_VERTEX_ARRAY_BGRA))
339	{
340	const DWORD *src = ptr;
341	DWORD c = *src & 0xff00ff00;
342	c \|= (*src & 0xff0000) >> 16;
343	c \|= (*src & 0xff) << 16;
344	GL_EXTCALL(glVertexAttrib4NubvARB(index, (GLubyte *)&c));
345	break;
346	}
347	/* else fallthrough */
348	case WINED3DFMT_R8G8B8A8_UNORM:
349	GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
350	break;
351
352	case WINED3DFMT_R16G16_SINT:
353	GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
354	break;
355	case WINED3DFMT_R16G16B16A16_SINT:
356	GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
357	break;
358
359	case WINED3DFMT_R16G16_SNORM:
360	{
361	GLshort s[4] = {((const GLshort )ptr)[0], ((const GLshort )ptr)[1], 0, 1};
362	GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
363	break;
364	}
365	case WINED3DFMT_R16G16_UNORM:
366	{
367	GLushort s[4] = {((const GLushort )ptr)[0], ((const GLushort )ptr)[1], 0, 1};
368	GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
369	break;
370	}
371	case WINED3DFMT_R16G16B16A16_SNORM:
372	GL_EXTCALL(glVertexAttrib4NsvARB(index, ptr));
373	break;
374	case WINED3DFMT_R16G16B16A16_UNORM:
375	GL_EXTCALL(glVertexAttrib4NusvARB(index, ptr));
376	break;
377
378	case WINED3DFMT_R10G10B10A2_UINT:
379	FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
380	/glVertexAttrib3usvARB(instancedData[j], (GLushort ) ptr); Does not exist */
381	break;
382	case WINED3DFMT_R10G10B10A2_SNORM:
383	FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
384	/glVertexAttrib3NusvARB(instancedData[j], (GLushort ) ptr); Does not exist */
385	break;
386
387	case WINED3DFMT_R16G16_FLOAT:
388	/* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
389	* byte float according to the IEEE standard
390	*/
391	if (GL_SUPPORT(NV_HALF_FLOAT)) {
392	/* Not supported by GL_ARB_half_float_vertex */
393	GL_EXTCALL(glVertexAttrib2hvNV(index, ptr));
394	} else {
395	float x = float_16_to_32(((const unsigned short *)ptr) + 0);
396	float y = float_16_to_32(((const unsigned short *)ptr) + 1);
397	GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
398	}
399	break;
400	case WINED3DFMT_R16G16B16A16_FLOAT:
401	if (GL_SUPPORT(NV_HALF_FLOAT)) {
402	/* Not supported by GL_ARB_half_float_vertex */
403	GL_EXTCALL(glVertexAttrib4hvNV(index, ptr));
404	} else {
405	float x = float_16_to_32(((const unsigned short *)ptr) + 0);
406	float y = float_16_to_32(((const unsigned short *)ptr) + 1);
407	float z = float_16_to_32(((const unsigned short *)ptr) + 2);
408	float w = float_16_to_32(((const unsigned short *)ptr) + 3);
409	GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
410	}
411	break;
412
413	default:
414	ERR("Unexpected attribute format: %s\n", debug_d3dformat(format));
415	break;
416	}
417	}
418
419	/* GL locking is done by the caller */
420	static void drawStridedSlowVs(IWineD3DDevice iface, const struct wined3d_stream_info si, UINT numberOfVertices,
421	GLenum glPrimitiveType, const void *idxData, UINT idxSize, UINT minIndex, UINT startIdx)
422	{
423	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl ) iface;
424	long SkipnStrides = startIdx + This->stateBlock->loadBaseVertexIndex;
425	const WORD *pIdxBufS = NULL;
426	const DWORD *pIdxBufL = NULL;
427	UINT vx_index;
428	int i;
429	IWineD3DStateBlockImpl *stateblock = This->stateBlock;
430	const BYTE *ptr;
431
432	if (idxSize != 0) {
433	/* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
434	* If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
435	* idxData will be != NULL
436	*/
437	if(idxData == NULL) {
438	idxData = buffer_get_sysmem((struct wined3d_buffer *) This->stateBlock->pIndexData);
439	}
440
441	if (idxSize == 2) pIdxBufS = idxData;
442	else pIdxBufL = idxData;
443	} else if (idxData) {
444	ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
445	return;
446	}
447
448	/* Start drawing in GL */
449	VTRACE(("glBegin(%x)\n", glPrimitiveType));
450	glBegin(glPrimitiveType);
451
452	for (vx_index = 0; vx_index < numberOfVertices; ++vx_index) {
453	if (idxData != NULL) {
454
455	/* Indexed so work out the number of strides to skip */
456	if (idxSize == 2) {
457	VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufS[startIdx+vx_index]));
458	SkipnStrides = pIdxBufS[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
459	} else {
460	VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufL[startIdx+vx_index]));
461	SkipnStrides = pIdxBufL[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
462	}
463	}
464
465	for(i = MAX_ATTRIBS - 1; i >= 0; i--) {
466	if(!si->elements[i].data) continue;
467
468	ptr = si->elements[i].data +
469	si->elements[i].stride * SkipnStrides +
470	stateblock->streamOffset[si->elements[i].stream_idx];
471
472	send_attribute(This, si->elements[i].format_desc->format, i, ptr);
473	}
474	SkipnStrides++;
475	}
476
477	glEnd();
478	}
479
480	/* GL locking is done by the caller */
481	static inline void drawStridedInstanced(IWineD3DDevice iface, const struct wined3d_stream_info si,
482	UINT numberOfVertices, GLenum glPrimitiveType, const void *idxData, UINT idxSize, UINT minIndex,
483	UINT startIdx)
484	{
485	UINT numInstances = 0, i;
486	int numInstancedAttribs = 0, j;
487	UINT instancedData[sizeof(si->elements) / sizeof(si->elements) / 16 */];
488	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl ) iface;
489	IWineD3DStateBlockImpl *stateblock = This->stateBlock;
490
491	if (idxSize == 0) {
492	/* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
493	* We don't support this for now
494	*
495	* Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
496	* But the StreamSourceFreq value has a different meaning in that situation.
497	*/
498	FIXME("Non-indexed instanced drawing is not supported\n");
499	return;
500	}
501
502	TRACE("(%p) : glElements(%x, %d, %d, ...)\n", This, glPrimitiveType, numberOfVertices, minIndex);
503
504	/* First, figure out how many instances we have to draw */
505	for(i = 0; i < MAX_STREAMS; i++) {
506	/* Look at the streams and take the first one which matches */
507	if(((stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INSTANCEDATA) \|\| (stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INDEXEDDATA)) && stateblock->streamSource[i]) {
508	/* D3D9 could set streamFreq 0 with (INSTANCEDATA or INDEXEDDATA) and then it is handled as 1. See d3d9/tests/visual.c-> stream_test() */
509	if(stateblock->streamFreq[i] == 0){
510	numInstances = 1;
511	} else {
512	numInstances = stateblock->streamFreq[i]; /* use the specified number of instances from the first matched stream. See d3d9/tests/visual.c-> stream_test() */
513	}
514	break; /* break, because only the first suitable value is interesting */
515	}
516	}
517
518	for (i = 0; i < sizeof(si->elements) / sizeof(*si->elements); ++i)
519	{
520	if (stateblock->streamFlags[si->elements[i].stream_idx] & WINED3DSTREAMSOURCE_INSTANCEDATA)
521	{
522	instancedData[numInstancedAttribs] = i;
523	numInstancedAttribs++;
524	}
525	}
526
527	/* now draw numInstances instances :-) */
528	for(i = 0; i < numInstances; i++) {
529	/* Specify the instanced attributes using immediate mode calls */
530	for(j = 0; j < numInstancedAttribs; j++) {
531	const BYTE *ptr = si->elements[instancedData[j]].data +
532	si->elements[instancedData[j]].stride * i +
533	stateblock->streamOffset[si->elements[instancedData[j]].stream_idx];
534	if (si->elements[instancedData[j]].buffer_object)
535	{
536	struct wined3d_buffer *vb =
537	(struct wined3d_buffer *)stateblock->streamSource[si->elements[instancedData[j]].stream_idx];
538	ptr += (long) buffer_get_sysmem(vb);
539	}
540
541	send_attribute(This, si->elements[instancedData[j]].format_desc->format, instancedData[j], ptr);
542	}
543
544	glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
545	(const char )idxData+(idxSize startIdx));
546	checkGLcall("glDrawElements");
547	}
548	}
549
550	static inline void remove_vbos(IWineD3DDeviceImpl This, struct wined3d_stream_info s)
551	{
552	unsigned int i;
553
554	for (i = 0; i < (sizeof(s->elements) / sizeof(*s->elements)); ++i)
555	{
556	struct wined3d_stream_info_element *e = &s->elements[i];
557	if (e->buffer_object)
558	{
559	struct wined3d_buffer vb = (struct wined3d_buffer )This->stateBlock->streamSource[e->stream_idx];
560	e->buffer_object = 0;
561	e->data = (BYTE *)((unsigned long)e->data + (unsigned long)buffer_get_sysmem(vb));
562	}
563	}
564	}
565
566	/* Routine common to the draw primitive and draw indexed primitive routines */
567	void drawPrimitive(IWineD3DDevice *iface, UINT index_count, UINT numberOfVertices,
568	UINT StartIdx, UINT idxSize, const void *idxData, UINT minIndex)
569	{
570
571	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
572	IWineD3DSurfaceImpl *target;
573	struct wined3d_context *context;
574	unsigned int i;
575
576	if (!index_count) return;
577
578	if (This->stateBlock->renderState[WINED3DRS_COLORWRITEENABLE])
579	{
580	/* Invalidate the back buffer memory so LockRect will read it the next time */
581	for (i = 0; i < GL_LIMITS(buffers); ++i)
582	{
583	target = (IWineD3DSurfaceImpl *)This->render_targets[i];
584	if (target)
585	{
586	IWineD3DSurface_LoadLocation((IWineD3DSurface *)target, SFLAG_INDRAWABLE, NULL);
587	IWineD3DSurface_ModifyLocation((IWineD3DSurface *)target, SFLAG_INDRAWABLE, TRUE);
588	}
589	}
590	}
591
592	/* Signals other modules that a drawing is in progress and the stateblock finalized */
593	This->isInDraw = TRUE;
594
595	context = ActivateContext(This, This->render_targets[0], CTXUSAGE_DRAWPRIM);
596
597	if (This->stencilBufferTarget) {
598	/* Note that this depends on the ActivateContext call above to set
599	* This->render_offscreen properly. We don't currently take the
600	* Z-compare function into account, but we could skip loading the
601	* depthstencil for D3DCMP_NEVER and D3DCMP_ALWAYS as well. Also note
602	* that we never copy the stencil data.*/
603	DWORD location = context->render_offscreen ? SFLAG_DS_OFFSCREEN : SFLAG_DS_ONSCREEN;
604	if (This->stateBlock->renderState[WINED3DRS_ZWRITEENABLE]
605	\|\| This->stateBlock->renderState[WINED3DRS_ZENABLE])
606	surface_load_ds_location(This->stencilBufferTarget, context, location);
607	if (This->stateBlock->renderState[WINED3DRS_ZWRITEENABLE])
608	surface_modify_ds_location(This->stencilBufferTarget, location);
609	}
610
611	/* Ok, we will be updating the screen from here onwards so grab the lock */
612	ENTER_GL();
613	{
614	GLenum glPrimType = This->stateBlock->gl_primitive_type;
615	BOOL emulation = FALSE;
616	const struct wined3d_stream_info *stream_info = &This->strided_streams;
617	struct wined3d_stream_info stridedlcl;
618
619	if (!numberOfVertices) numberOfVertices = index_count;
620
621	if (!use_vs(This->stateBlock))
622	{
623	if (!This->strided_streams.position_transformed && context->num_untracked_materials
624	&& This->stateBlock->renderState[WINED3DRS_LIGHTING])
625	{
626	static BOOL warned;
627	if (!warned) {
628	FIXME("Using software emulation because not all material properties could be tracked\n");
629	warned = TRUE;
630	} else {
631	TRACE("Using software emulation because not all material properties could be tracked\n");
632	}
633	emulation = TRUE;
634	}
635	else if (context->fog_coord && This->stateBlock->renderState[WINED3DRS_FOGENABLE])
636	{
637	/* Either write a pipeline replacement shader or convert the specular alpha from unsigned byte
638	* to a float in the vertex buffer
639	*/
640	static BOOL warned;
641	if (!warned) {
642	FIXME("Using software emulation because manual fog coordinates are provided\n");
643	warned = TRUE;
644	} else {
645	TRACE("Using software emulation because manual fog coordinates are provided\n");
646	}
647	emulation = TRUE;
648	}
649
650	if(emulation) {
651	stream_info = &stridedlcl;
652	memcpy(&stridedlcl, &This->strided_streams, sizeof(stridedlcl));
653	remove_vbos(This, &stridedlcl);
654	}
655	}
656
657	if (This->useDrawStridedSlow \|\| emulation) {
658	/* Immediate mode drawing */
659	if (use_vs(This->stateBlock))
660	{
661	static BOOL warned;
662	if (!warned) {
663	FIXME("Using immediate mode with vertex shaders for half float emulation\n");
664	warned = TRUE;
665	} else {
666	TRACE("Using immediate mode with vertex shaders for half float emulation\n");
667	}
668	drawStridedSlowVs(iface, stream_info, index_count, glPrimType, idxData, idxSize, minIndex, StartIdx);
669	} else {
670	drawStridedSlow(iface, context, stream_info, index_count,
671	glPrimType, idxData, idxSize, minIndex, StartIdx);
672	}
673	} else if(This->instancedDraw) {
674	/* Instancing emulation with mixing immediate mode and arrays */
675	drawStridedInstanced(iface, &This->strided_streams, index_count,
676	glPrimType, idxData, idxSize, minIndex, StartIdx);
677	} else {
678	drawStridedFast(iface, glPrimType, minIndex, minIndex + numberOfVertices - 1,
679	index_count, idxSize, idxData, StartIdx);
680	}
681	}
682
683	/* Finished updating the screen, restore lock */
684	LEAVE_GL();
685	TRACE("Done all gl drawing\n");
686
687	/* Diagnostics */
688	#ifdef SHOW_FRAME_MAKEUP
689	{
690	static long int primCounter = 0;
691	/* NOTE: set primCounter to the value reported by drawprim
692	before you want to to write frame makeup to /tmp */
693	if (primCounter >= 0) {
694	WINED3DLOCKED_RECT r;
695	char buffer[80];
696	IWineD3DSurface_LockRect(This->render_targets[0], &r, NULL, WINED3DLOCK_READONLY);
697	sprintf(buffer, "/tmp/backbuffer_%ld.tga", primCounter);
698	TRACE("Saving screenshot %s\n", buffer);
699	IWineD3DSurface_SaveSnapshot(This->render_targets[0], buffer);
700	IWineD3DSurface_UnlockRect(This->render_targets[0]);
701
702	#ifdef SHOW_TEXTURE_MAKEUP
703	{
704	IWineD3DSurface *pSur;
705	int textureNo;
706	for (textureNo = 0; textureNo < MAX_COMBINED_SAMPLERS; ++textureNo) {
707	if (This->stateBlock->textures[textureNo] != NULL) {
708	sprintf(buffer, "/tmp/texture_%p_%ld_%d.tga", This->stateBlock->textures[textureNo], primCounter, textureNo);
709	TRACE("Saving texture %s\n", buffer);
710	if (IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]) == WINED3DRTYPE_TEXTURE) {
711	IWineD3DTexture_GetSurfaceLevel(This->stateBlock->textures[textureNo], 0, &pSur);
712	IWineD3DSurface_SaveSnapshot(pSur, buffer);
713	IWineD3DSurface_Release(pSur);
714	} else {
715	FIXME("base Texture isn't of type texture %d\n", IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]));
716	}
717	}
718	}
719	}
720	#endif
721	}
722	TRACE("drawprim #%ld\n", primCounter);
723	++primCounter;
724	}
725	#endif
726
727	/* Control goes back to the device, stateblock values may change again */
728	This->isInDraw = FALSE;
729	}
730
731	static void normalize_normal(float *n) {
732	float length = n[0] * n[0] + n[1] * n[1] + n[2] * n[2];
733	if (length == 0.0f) return;
734	length = sqrt(length);
735	n[0] = n[0] / length;
736	n[1] = n[1] / length;
737	n[2] = n[2] / length;
738	}
739
740	/* Tesselates a high order rectangular patch into single triangles using gl evaluators
741	*
742	* The problem is that OpenGL does not offer a direct way to return the tesselated primitives,
743	* and they can't be sent off for rendering directly either. Tesselating is slow, so we want
744	* to cache the patches in a vertex buffer. But more importantly, gl can't bind generated
745	* attributes to numbered shader attributes, so we have to store them and rebind them as needed
746	* in drawprim.
747	*
748	* To read back, the opengl feedback mode is used. This creates a problem because we want
749	* untransformed, unlit vertices, but feedback runs everything through transform and lighting.
750	* Thus disable lighting and set identity matrices to get unmodified colors and positions.
751	* To overcome clipping find the biggest x, y and z values of the vertices in the patch and scale
752	* them to [-1.0;+1.0] and set the viewport up to scale them back.
753	*
754	* Normals are more tricky: Draw white vertices with 3 directional lights, and calculate the
755	* resulting colors back to the normals.
756	*
757	* NOTE: This function activates a context for blitting, modifies matrices & viewport, but
758	* does not restore it because normally a draw follows immediately afterwards. The caller is
759	* responsible of taking care that either the gl states are restored, or the context activated
760	* for drawing to reset the lastWasBlit flag.
761	*/
762	HRESULT tesselate_rectpatch(IWineD3DDeviceImpl *This,
763	struct WineD3DRectPatch *patch) {
764	unsigned int i, j, num_quads, out_vertex_size, buffer_size, d3d_out_vertex_size;
765	float max_x = 0.0f, max_y = 0.0f, max_z = 0.0f, neg_z = 0.0f;
766	struct wined3d_stream_info stream_info;
767	struct wined3d_stream_info_element *e;
768	const BYTE *data;
769	const WINED3DRECTPATCH_INFO *info = &patch->RectPatchInfo;
770	DWORD vtxStride;
771	GLenum feedback_type;
772	GLfloat *feedbuffer;
773
774	/* Simply activate the context for blitting. This disables all the things we don't want and
775	* takes care of dirtifying. Dirtifying is preferred over pushing / popping, since drawing the
776	* patch (as opposed to normal draws) will most likely need different changes anyway. */
777	ActivateContext(This, NULL, CTXUSAGE_BLIT);
778
779	/* First, locate the position data. This is provided in a vertex buffer in the stateblock.
780	* Beware of vbos
781	*/
782	device_stream_info_from_declaration(This, FALSE, &stream_info, NULL);
783
784	e = &stream_info.elements[WINED3D_FFP_POSITION];
785	if (e->buffer_object)
786	{
787	struct wined3d_buffer *vb;
788	vb = (struct wined3d_buffer *)This->stateBlock->streamSource[e->stream_idx];
789	e->data = (BYTE *)((unsigned long)e->data + (unsigned long)buffer_get_sysmem(vb));
790	}
791	vtxStride = e->stride;
792	data = e->data +
793	vtxStride * info->Stride * info->StartVertexOffsetHeight +
794	vtxStride * info->StartVertexOffsetWidth;
795
796	/* Not entirely sure about what happens with transformed vertices */
797	if (stream_info.position_transformed) FIXME("Transformed position in rectpatch generation\n");
798
799	if(vtxStride % sizeof(GLfloat)) {
800	/* glMap2f reads vertex sizes in GLfloats, the d3d stride is in bytes.
801	* I don't see how the stride could not be a multiple of 4, but make sure
802	* to check it
803	*/
804	ERR("Vertex stride is not a multiple of sizeof(GLfloat)\n");
805	}
806	if(info->Basis != WINED3DBASIS_BEZIER) {
807	FIXME("Basis is %s, how to handle this?\n", debug_d3dbasis(info->Basis));
808	}
809	if(info->Degree != WINED3DDEGREE_CUBIC) {
810	FIXME("Degree is %s, how to handle this?\n", debug_d3ddegree(info->Degree));
811	}
812
813	/* First, get the boundary cube of the input data */
814	for(j = 0; j < info->Height; j++) {
815	for(i = 0; i < info->Width; i++) {
816	const float v = (const float )(data + vtxStride * i + vtxStride * info->Stride * j);
817	if(fabs(v[0]) > max_x) max_x = fabs(v[0]);
818	if(fabs(v[1]) > max_y) max_y = fabs(v[1]);
819	if(fabs(v[2]) > max_z) max_z = fabs(v[2]);
820	if(v[2] < neg_z) neg_z = v[2];
821	}
822	}
823
824	/* This needs some improvements in the vertex decl code */
825	FIXME("Cannot find data to generate. Only generating position and normals\n");
826	patch->has_normals = TRUE;
827	patch->has_texcoords = FALSE;
828
829	ENTER_GL();
830
831	glMatrixMode(GL_PROJECTION);
832	checkGLcall("glMatrixMode(GL_PROJECTION)");
833	glLoadIdentity();
834	checkGLcall("glLoadIndentity()");
835	glScalef(1.0f / (max_x), 1.0f / (max_y), max_z == 0.0f ? 1.0f : 1.0f / (2.0f * max_z));
836	glTranslatef(0.0f, 0.0f, 0.5f);
837	checkGLcall("glScalef");
838	glViewport(-max_x, -max_y, 2 * (max_x), 2 * (max_y));
839	checkGLcall("glViewport");
840
841	/* Some states to take care of. If we're in wireframe opengl will produce lines, and confuse
842	* our feedback buffer parser
843	*/
844	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
845	checkGLcall("glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)");
846	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_FILLMODE));
847	if(patch->has_normals) {
848	static const GLfloat black[] = {0.0f, 0.0f, 0.0f, 0.0f};
849	static const GLfloat red[] = {1.0f, 0.0f, 0.0f, 0.0f};
850	static const GLfloat green[] = {0.0f, 1.0f, 0.0f, 0.0f};
851	static const GLfloat blue[] = {0.0f, 0.0f, 1.0f, 0.0f};
852	static const GLfloat white[] = {1.0f, 1.0f, 1.0f, 1.0f};
853	glEnable(GL_LIGHTING);
854	checkGLcall("glEnable(GL_LIGHTING)");
855	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, black);
856	checkGLcall("glLightModel for MODEL_AMBIENT");
857	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_AMBIENT));
858
859	for(i = 3; i < GL_LIMITS(lights); i++) {
860	glDisable(GL_LIGHT0 + i);
861	checkGLcall("glDisable(GL_LIGHT0 + i)");
862	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(i));
863	}
864
865	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(0));
866	glLightfv(GL_LIGHT0, GL_DIFFUSE, red);
867	glLightfv(GL_LIGHT0, GL_SPECULAR, black);
868	glLightfv(GL_LIGHT0, GL_AMBIENT, black);
869	glLightfv(GL_LIGHT0, GL_POSITION, red);
870	glEnable(GL_LIGHT0);
871	checkGLcall("Setting up light 1");
872	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(1));
873	glLightfv(GL_LIGHT1, GL_DIFFUSE, green);
874	glLightfv(GL_LIGHT1, GL_SPECULAR, black);
875	glLightfv(GL_LIGHT1, GL_AMBIENT, black);
876	glLightfv(GL_LIGHT1, GL_POSITION, green);
877	glEnable(GL_LIGHT1);
878	checkGLcall("Setting up light 2");
879	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(2));
880	glLightfv(GL_LIGHT2, GL_DIFFUSE, blue);
881	glLightfv(GL_LIGHT2, GL_SPECULAR, black);
882	glLightfv(GL_LIGHT2, GL_AMBIENT, black);
883	glLightfv(GL_LIGHT2, GL_POSITION, blue);
884	glEnable(GL_LIGHT2);
885	checkGLcall("Setting up light 3");
886
887	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_MATERIAL);
888	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_COLORVERTEX));
889	glDisable(GL_COLOR_MATERIAL);
890	glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, black);
891	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
892	glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, white);
893	checkGLcall("Setting up materials");
894	}
895
896	/* Enable the needed maps.
897	* GL_MAP2_VERTEX_3 is needed for positional data.
898	* GL_AUTO_NORMAL to generate normals from the position. Do not use GL_MAP2_NORMAL.
899	* GL_MAP2_TEXTURE_COORD_4 for texture coords
900	*/
901	num_quads = ceilf(patch->numSegs[0]) * ceilf(patch->numSegs[1]);
902	out_vertex_size = 3 /* position */;
903	d3d_out_vertex_size = 3;
904	glEnable(GL_MAP2_VERTEX_3);
905	if(patch->has_normals && patch->has_texcoords) {
906	FIXME("Texcoords not handled yet\n");
907	feedback_type = GL_3D_COLOR_TEXTURE;
908	out_vertex_size += 8;
909	d3d_out_vertex_size += 7;
910	glEnable(GL_AUTO_NORMAL);
911	glEnable(GL_MAP2_TEXTURE_COORD_4);
912	} else if(patch->has_texcoords) {
913	FIXME("Texcoords not handled yet\n");
914	feedback_type = GL_3D_COLOR_TEXTURE;
915	out_vertex_size += 7;
916	d3d_out_vertex_size += 4;
917	glEnable(GL_MAP2_TEXTURE_COORD_4);
918	} else if(patch->has_normals) {
919	feedback_type = GL_3D_COLOR;
920	out_vertex_size += 4;
921	d3d_out_vertex_size += 3;
922	glEnable(GL_AUTO_NORMAL);
923	} else {
924	feedback_type = GL_3D;
925	}
926	checkGLcall("glEnable vertex attrib generation");
927
928	buffer_size = num_quads * out_vertex_size * 2 /* triangle list / 3 /* verts per tri */
929	+ 4 * num_quads /* 2 triangle markers per quad + num verts in tri */;
930	feedbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, buffer_size * sizeof(float) * 8);
931
932	glMap2f(GL_MAP2_VERTEX_3,
933	0.0f, 1.0f, vtxStride / sizeof(float), info->Width,
934	0.0f, 1.0f, info->Stride * vtxStride / sizeof(float), info->Height,
935	(const GLfloat *)data);
936	checkGLcall("glMap2f");
937	if(patch->has_texcoords) {
938	glMap2f(GL_MAP2_TEXTURE_COORD_4,
939	0.0f, 1.0f, vtxStride / sizeof(float), info->Width,
940	0.0f, 1.0f, info->Stride * vtxStride / sizeof(float), info->Height,
941	(const GLfloat *)data);
942	checkGLcall("glMap2f");
943	}
944	glMapGrid2f(ceilf(patch->numSegs[0]), 0.0f, 1.0f, ceilf(patch->numSegs[1]), 0.0f, 1.0f);
945	checkGLcall("glMapGrid2f");
946
947	glFeedbackBuffer(buffer_size * 2, feedback_type, feedbuffer);
948	checkGLcall("glFeedbackBuffer");
949	glRenderMode(GL_FEEDBACK);
950
951	glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
952	checkGLcall("glEvalMesh2");
953
954	i = glRenderMode(GL_RENDER);
955	if(i == -1) {
956	LEAVE_GL();
957	ERR("Feedback failed. Expected %d elements back\n", buffer_size);
958	HeapFree(GetProcessHeap(), 0, feedbuffer);
959	return WINED3DERR_DRIVERINTERNALERROR;
960	} else if(i != buffer_size) {
961	LEAVE_GL();
962	ERR("Unexpected amount of elements returned. Expected %d, got %d\n", buffer_size, i);
963	HeapFree(GetProcessHeap(), 0, feedbuffer);
964	return WINED3DERR_DRIVERINTERNALERROR;
965	} else {
966	TRACE("Got %d elements as expected\n", i);
967	}
968
969	HeapFree(GetProcessHeap(), 0, patch->mem);
970	patch->mem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, num_quads * 6 * d3d_out_vertex_size * sizeof(float) * 8);
971	i = 0;
972	for(j = 0; j < buffer_size; j += (3 /* num verts / out_vertex_size + 2 /* tri marker */)) {
973	if(feedbuffer[j] != GL_POLYGON_TOKEN) {
974	ERR("Unexpected token: %f\n", feedbuffer[j]);
975	continue;
976	}
977	if(feedbuffer[j + 1] != 3) {
978	ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
979	continue;
980	}
981	/* Somehow there are different ideas about back / front facing, so fix up the
982	* vertex order
983	*/
984	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 2 + 2]; /* x, triangle 2 */
985	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 2 + 3]; /* y, triangle 2 */
986	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 2 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 3 */
987	if(patch->has_normals) {
988	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 2 + 5];
989	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 2 + 6];
990	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 2 + 7];
991	}
992	i += d3d_out_vertex_size;
993
994	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 1 + 2]; /* x, triangle 2 */
995	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 1 + 3]; /* y, triangle 2 */
996	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 1 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 2 */
997	if(patch->has_normals) {
998	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 1 + 5];
999	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 1 + 6];
1000	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 1 + 7];
1001	}
1002	i += d3d_out_vertex_size;
1003
1004	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 0 + 2]; /* x, triangle 1 */
1005	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 0 + 3]; /* y, triangle 1 */
1006	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 0 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 1 */
1007	if(patch->has_normals) {
1008	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 0 + 5];
1009	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 0 + 6];
1010	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 0 + 7];
1011	}
1012	i += d3d_out_vertex_size;
1013	}
1014
1015	if(patch->has_normals) {
1016	/* Now do the same with reverse light directions */
1017	static const GLfloat x[] = {-1.0f, 0.0f, 0.0f, 0.0f};
1018	static const GLfloat y[] = { 0.0f, -1.0f, 0.0f, 0.0f};
1019	static const GLfloat z[] = { 0.0f, 0.0f, -1.0f, 0.0f};
1020	glLightfv(GL_LIGHT0, GL_POSITION, x);
1021	glLightfv(GL_LIGHT1, GL_POSITION, y);
1022	glLightfv(GL_LIGHT2, GL_POSITION, z);
1023	checkGLcall("Setting up reverse light directions");
1024
1025	glRenderMode(GL_FEEDBACK);
1026	checkGLcall("glRenderMode(GL_FEEDBACK)");
1027	glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1028	checkGLcall("glEvalMesh2");
1029	i = glRenderMode(GL_RENDER);
1030	checkGLcall("glRenderMode(GL_RENDER)");
1031
1032	i = 0;
1033	for(j = 0; j < buffer_size; j += (3 /* num verts / out_vertex_size + 2 /* tri marker */)) {
1034	if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1035	ERR("Unexpected token: %f\n", feedbuffer[j]);
1036	continue;
1037	}
1038	if(feedbuffer[j + 1] != 3) {
1039	ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1040	continue;
1041	}
1042	if(patch->mem[i + 3] == 0.0f)
1043	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 2 + 5];
1044	if(patch->mem[i + 4] == 0.0f)
1045	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 2 + 6];
1046	if(patch->mem[i + 5] == 0.0f)
1047	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 2 + 7];
1048	normalize_normal(patch->mem + i + 3);
1049	i += d3d_out_vertex_size;
1050
1051	if(patch->mem[i + 3] == 0.0f)
1052	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 1 + 5];
1053	if(patch->mem[i + 4] == 0.0f)
1054	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 1 + 6];
1055	if(patch->mem[i + 5] == 0.0f)
1056	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 1 + 7];
1057	normalize_normal(patch->mem + i + 3);
1058	i += d3d_out_vertex_size;
1059
1060	if(patch->mem[i + 3] == 0.0f)
1061	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 0 + 5];
1062	if(patch->mem[i + 4] == 0.0f)
1063	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 0 + 6];
1064	if(patch->mem[i + 5] == 0.0f)
1065	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 0 + 7];
1066	normalize_normal(patch->mem + i + 3);
1067	i += d3d_out_vertex_size;
1068	}
1069	}
1070
1071	glDisable(GL_MAP2_VERTEX_3);
1072	glDisable(GL_AUTO_NORMAL);
1073	glDisable(GL_MAP2_NORMAL);
1074	glDisable(GL_MAP2_TEXTURE_COORD_4);
1075	checkGLcall("glDisable vertex attrib generation");
1076	LEAVE_GL();
1077
1078	HeapFree(GetProcessHeap(), 0, feedbuffer);
1079
1080	vtxStride = 3 * sizeof(float);
1081	if(patch->has_normals) {
1082	vtxStride += 3 * sizeof(float);
1083	}
1084	if(patch->has_texcoords) {
1085	vtxStride += 4 * sizeof(float);
1086	}
1087	memset(&patch->strided, 0, sizeof(&patch->strided));
1088	patch->strided.position.format = WINED3DFMT_R32G32B32_FLOAT;
1089	patch->strided.position.lpData = (BYTE *) patch->mem;
1090	patch->strided.position.dwStride = vtxStride;
1091
1092	if(patch->has_normals) {
1093	patch->strided.normal.format = WINED3DFMT_R32G32B32_FLOAT;
1094	patch->strided.normal.lpData = (BYTE ) patch->mem + 3 sizeof(float) /* pos */;
1095	patch->strided.normal.dwStride = vtxStride;
1096	}
1097	if(patch->has_texcoords) {
1098	patch->strided.texCoords[0].format = WINED3DFMT_R32G32B32A32_FLOAT;
1099	patch->strided.texCoords[0].lpData = (BYTE ) patch->mem + 3 sizeof(float) /* pos */;
1100	if(patch->has_normals) {
1101	patch->strided.texCoords[0].lpData += 3 * sizeof(float);
1102	}
1103	patch->strided.texCoords[0].dwStride = vtxStride;
1104	}
1105
1106	return WINED3D_OK;
1107	}

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source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/drawprim.c@ 22652

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