drawprim.c@ 32305

Last change on this file since 32305 was 28475, checked in by vboxsync, 15 years ago
crOpenGL: update to wine 1.1.43
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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	* Sun 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, Sun 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	WINE_DEFAULT_DEBUG_CHANNEL(d3d_draw);
40	#define GLINFO_LOCATION This->adapter->gl_info
41
42	#include <stdio.h>
43	#include <math.h>
44
45	#define ceilf ceil
46
47	/* GL locking is done by the caller */
48	static void drawStridedFast(IWineD3DDevice *iface, GLenum primitive_type,
49	UINT count, UINT idx_size, const void *idx_data, UINT start_idx)
50	{
51	if (idx_size)
52	{
53	TRACE("(%p) : glElements(%x, %d, ...)\n", iface, primitive_type, count);
54
55	glDrawElements(primitive_type, count,
56	idx_size == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
57	(const char )idx_data + (idx_size start_idx));
58	checkGLcall("glDrawElements");
59	}
60	else
61	{
62	TRACE("(%p) : glDrawArrays(%#x, %d, %d)\n", iface, primitive_type, start_idx, count);
63
64	glDrawArrays(primitive_type, start_idx, count);
65	checkGLcall("glDrawArrays");
66	}
67	}
68
69	/*
70	* Actually draw using the supplied information.
71	* Slower GL version which extracts info about each vertex in turn
72	*/
73
74	/* GL locking is done by the caller */
75	static void drawStridedSlow(IWineD3DDevice iface, const struct wined3d_context context,
76	const struct wined3d_stream_info *si, UINT NumVertexes, GLenum glPrimType,
77	const void *idxData, UINT idxSize, UINT startIdx)
78	{
79	unsigned int textureNo = 0;
80	const WORD *pIdxBufS = NULL;
81	const DWORD *pIdxBufL = NULL;
82	UINT vx_index;
83	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
84	const UINT *streamOffset = This->stateBlock->streamOffset;
85	long SkipnStrides = startIdx + This->stateBlock->loadBaseVertexIndex;
86	BOOL pixelShader = use_ps(This->stateBlock);
87	BOOL specular_fog = FALSE;
88	const BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
89	const BYTE diffuse = NULL, specular = NULL, normal = NULL, position = NULL;
90	const struct wined3d_gl_info *gl_info = context->gl_info;
91	UINT texture_stages = gl_info->limits.texture_stages;
92	const struct wined3d_stream_info_element *element;
93	UINT num_untracked_materials;
94	DWORD tex_mask = 0;
95
96	TRACE("Using slow vertex array code\n");
97
98	/* Variable Initialization */
99	if (idxSize != 0) {
100	/* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
101	* If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
102	* idxData will be != NULL
103	*/
104	if(idxData == NULL) {
105	idxData = buffer_get_sysmem((struct wined3d_buffer *) This->stateBlock->pIndexData);
106	}
107
108	if (idxSize == 2) pIdxBufS = idxData;
109	else pIdxBufL = idxData;
110	} else if (idxData) {
111	ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
112	return;
113	}
114
115	/* Start drawing in GL */
116	glBegin(glPrimType);
117
118	if (si->use_map & (1 << WINED3D_FFP_POSITION))
119	{
120	element = &si->elements[WINED3D_FFP_POSITION];
121	position = element->data + streamOffset[element->stream_idx];
122	}
123
124	if (si->use_map & (1 << WINED3D_FFP_NORMAL))
125	{
126	element = &si->elements[WINED3D_FFP_NORMAL];
127	normal = element->data + streamOffset[element->stream_idx];
128	}
129	else
130	{
131	glNormal3f(0, 0, 0);
132	}
133
134	num_untracked_materials = context->num_untracked_materials;
135	if (si->use_map & (1 << WINED3D_FFP_DIFFUSE))
136	{
137	element = &si->elements[WINED3D_FFP_DIFFUSE];
138	diffuse = element->data + streamOffset[element->stream_idx];
139
140	if (num_untracked_materials && element->format_desc->format != WINED3DFMT_B8G8R8A8_UNORM)
141	FIXME("Implement diffuse color tracking from %s\n", debug_d3dformat(element->format_desc->format));
142	}
143	else
144	{
145	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
146	}
147
148	if (si->use_map & (1 << WINED3D_FFP_SPECULAR))
149	{
150	element = &si->elements[WINED3D_FFP_SPECULAR];
151	specular = element->data + streamOffset[element->stream_idx];
152
153	/* special case where the fog density is stored in the specular alpha channel */
154	if (This->stateBlock->renderState[WINED3DRS_FOGENABLE]
155	&& (This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == WINED3DFOG_NONE
156	\|\| si->elements[WINED3D_FFP_POSITION].format_desc->format == WINED3DFMT_R32G32B32A32_FLOAT)
157	&& This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == WINED3DFOG_NONE)
158	{
159	if (gl_info->supported[EXT_FOG_COORD])
160	{
161	if (element->format_desc->format == WINED3DFMT_B8G8R8A8_UNORM) specular_fog = TRUE;
162	else FIXME("Implement fog coordinates from %s\n", debug_d3dformat(element->format_desc->format));
163	}
164	else
165	{
166	static BOOL warned;
167
168	if (!warned)
169	{
170	/* TODO: Use the fog table code from old ddraw */
171	FIXME("Implement fog for transformed vertices in software\n");
172	warned = TRUE;
173	}
174	}
175	}
176	}
177	else if (gl_info->supported[EXT_SECONDARY_COLOR])
178	{
179	GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
180	}
181
182	for (textureNo = 0; textureNo < texture_stages; ++textureNo)
183	{
184	int coordIdx = This->stateBlock->textureState[textureNo][WINED3DTSS_TEXCOORDINDEX];
185	DWORD texture_idx = This->texUnitMap[textureNo];
186
187	if (!gl_info->supported[ARB_MULTITEXTURE] && textureNo > 0)
188	{
189	FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
190	continue;
191	}
192
193	if (!pixelShader && !This->stateBlock->textures[textureNo]) continue;
194
195	if (texture_idx == WINED3D_UNMAPPED_STAGE) continue;
196
197	if (coordIdx > 7)
198	{
199	TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
200	continue;
201	}
202	else if (coordIdx < 0)
203	{
204	FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
205	continue;
206	}
207
208	if (si->use_map & (1 << (WINED3D_FFP_TEXCOORD0 + coordIdx)))
209	{
210	element = &si->elements[WINED3D_FFP_TEXCOORD0 + coordIdx];
211	texCoords[coordIdx] = element->data + streamOffset[element->stream_idx];
212	tex_mask \|= (1 << textureNo);
213	}
214	else
215	{
216	TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
217	if (gl_info->supported[ARB_MULTITEXTURE])
218	GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
219	else
220	glTexCoord4f(0, 0, 0, 1);
221	}
222	}
223
224	/* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
225	* Guess it's not necessary(we crash then anyway) and would only eat CPU time
226	*/
227
228	/* For each primitive */
229	for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
230	UINT texture, tmp_tex_mask;
231	/* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
232	* function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
233	*/
234
235	/* For indexed data, we need to go a few more strides in */
236	if (idxData != NULL) {
237
238	/* Indexed so work out the number of strides to skip */
239	if (idxSize == 2)
240	SkipnStrides = pIdxBufS[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
241	else
242	SkipnStrides = pIdxBufL[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
243	}
244
245	tmp_tex_mask = tex_mask;
246	for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
247	{
248	int coord_idx;
249	const void *ptr;
250	DWORD texture_idx;
251
252	if (!(tmp_tex_mask & 1)) continue;
253
254	coord_idx = This->stateBlock->textureState[texture][WINED3DTSS_TEXCOORDINDEX];
255	ptr = texCoords[coord_idx] + (SkipnStrides * si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].stride);
256
257	texture_idx = This->texUnitMap[texture];
258	multi_texcoord_funcs[si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].format_desc->emit_idx](
259	GL_TEXTURE0_ARB + texture_idx, ptr);
260	}
261
262	/* Diffuse -------------------------------- */
263	if (diffuse) {
264	const void ptrToCoords = diffuse + SkipnStrides si->elements[WINED3D_FFP_DIFFUSE].stride;
265
266	diffuse_funcs[si->elements[WINED3D_FFP_DIFFUSE].format_desc->emit_idx](ptrToCoords);
267	if (num_untracked_materials)
268	{
269	DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
270	unsigned char i;
271	float color[4];
272
273	color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0f;
274	color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0f;
275	color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0f;
276	color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0f;
277
278	for (i = 0; i < num_untracked_materials; ++i)
279	{
280	glMaterialfv(GL_FRONT_AND_BACK, context->untracked_materials[i], color);
281	}
282	}
283	}
284
285	/* Specular ------------------------------- */
286	if (specular) {
287	const void ptrToCoords = specular + SkipnStrides si->elements[WINED3D_FFP_SPECULAR].stride;
288
289	specular_funcs[si->elements[WINED3D_FFP_SPECULAR].format_desc->emit_idx](ptrToCoords);
290
291	if (specular_fog)
292	{
293	DWORD specularColor = (const DWORD )ptrToCoords;
294	GL_EXTCALL(glFogCoordfEXT(specularColor >> 24));
295	}
296	}
297
298	/* Normal -------------------------------- */
299	if (normal != NULL) {
300	const void ptrToCoords = normal + SkipnStrides si->elements[WINED3D_FFP_NORMAL].stride;
301	normal_funcs[si->elements[WINED3D_FFP_NORMAL].format_desc->emit_idx](ptrToCoords);
302	}
303
304	/* Position -------------------------------- */
305	if (position) {
306	const void ptrToCoords = position + SkipnStrides si->elements[WINED3D_FFP_POSITION].stride;
307	position_funcs[si->elements[WINED3D_FFP_POSITION].format_desc->emit_idx](ptrToCoords);
308	}
309
310	/* For non indexed mode, step onto next parts */
311	if (idxData == NULL) {
312	++SkipnStrides;
313	}
314	}
315
316	glEnd();
317	checkGLcall("glEnd and previous calls");
318	}
319
320	/* GL locking is done by the caller */
321	static inline void send_attribute(IWineD3DDeviceImpl This, WINED3DFORMAT format, const UINT index, const void ptr)
322	{
323	const struct wined3d_gl_info *gl_info = &This->adapter->gl_info;
324
325	switch(format)
326	{
327	case WINED3DFMT_R32_FLOAT:
328	GL_EXTCALL(glVertexAttrib1fvARB(index, ptr));
329	break;
330	case WINED3DFMT_R32G32_FLOAT:
331	GL_EXTCALL(glVertexAttrib2fvARB(index, ptr));
332	break;
333	case WINED3DFMT_R32G32B32_FLOAT:
334	GL_EXTCALL(glVertexAttrib3fvARB(index, ptr));
335	break;
336	case WINED3DFMT_R32G32B32A32_FLOAT:
337	GL_EXTCALL(glVertexAttrib4fvARB(index, ptr));
338	break;
339
340	case WINED3DFMT_R8G8B8A8_UINT:
341	GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
342	break;
343	case WINED3DFMT_B8G8R8A8_UNORM:
344	if (gl_info->supported[ARB_VERTEX_ARRAY_BGRA])
345	{
346	const DWORD *src = ptr;
347	DWORD c = *src & 0xff00ff00;
348	c \|= (*src & 0xff0000) >> 16;
349	c \|= (*src & 0xff) << 16;
350	GL_EXTCALL(glVertexAttrib4NubvARB(index, (GLubyte *)&c));
351	break;
352	}
353	/* else fallthrough */
354	case WINED3DFMT_R8G8B8A8_UNORM:
355	GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
356	break;
357
358	case WINED3DFMT_R16G16_SINT:
359	GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
360	break;
361	case WINED3DFMT_R16G16B16A16_SINT:
362	GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
363	break;
364
365	case WINED3DFMT_R16G16_SNORM:
366	{
367	GLshort s[4] = {((const GLshort )ptr)[0], ((const GLshort )ptr)[1], 0, 1};
368	GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
369	break;
370	}
371	case WINED3DFMT_R16G16_UNORM:
372	{
373	GLushort s[4] = {((const GLushort )ptr)[0], ((const GLushort )ptr)[1], 0, 1};
374	GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
375	break;
376	}
377	case WINED3DFMT_R16G16B16A16_SNORM:
378	GL_EXTCALL(glVertexAttrib4NsvARB(index, ptr));
379	break;
380	case WINED3DFMT_R16G16B16A16_UNORM:
381	GL_EXTCALL(glVertexAttrib4NusvARB(index, ptr));
382	break;
383
384	case WINED3DFMT_R10G10B10A2_UINT:
385	FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
386	/glVertexAttrib3usvARB(instancedData[j], (GLushort ) ptr); Does not exist */
387	break;
388	case WINED3DFMT_R10G10B10A2_SNORM:
389	FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
390	/glVertexAttrib3NusvARB(instancedData[j], (GLushort ) ptr); Does not exist */
391	break;
392
393	case WINED3DFMT_R16G16_FLOAT:
394	/* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
395	* byte float according to the IEEE standard
396	*/
397	if (gl_info->supported[NV_HALF_FLOAT])
398	{
399	/* Not supported by GL_ARB_half_float_vertex */
400	GL_EXTCALL(glVertexAttrib2hvNV(index, ptr));
401	}
402	else
403	{
404	float x = float_16_to_32(((const unsigned short *)ptr) + 0);
405	float y = float_16_to_32(((const unsigned short *)ptr) + 1);
406	GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
407	}
408	break;
409	case WINED3DFMT_R16G16B16A16_FLOAT:
410	if (gl_info->supported[NV_HALF_FLOAT])
411	{
412	/* Not supported by GL_ARB_half_float_vertex */
413	GL_EXTCALL(glVertexAttrib4hvNV(index, ptr));
414	}
415	else
416	{
417	float x = float_16_to_32(((const unsigned short *)ptr) + 0);
418	float y = float_16_to_32(((const unsigned short *)ptr) + 1);
419	float z = float_16_to_32(((const unsigned short *)ptr) + 2);
420	float w = float_16_to_32(((const unsigned short *)ptr) + 3);
421	GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
422	}
423	break;
424
425	default:
426	ERR("Unexpected attribute format: %s\n", debug_d3dformat(format));
427	break;
428	}
429	}
430
431	/* GL locking is done by the caller */
432	static void drawStridedSlowVs(IWineD3DDevice iface, const struct wined3d_stream_info si, UINT numberOfVertices,
433	GLenum glPrimitiveType, const void *idxData, UINT idxSize, UINT startIdx)
434	{
435	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl ) iface;
436	long SkipnStrides = startIdx + This->stateBlock->loadBaseVertexIndex;
437	const WORD *pIdxBufS = NULL;
438	const DWORD *pIdxBufL = NULL;
439	UINT vx_index;
440	int i;
441	IWineD3DStateBlockImpl *stateblock = This->stateBlock;
442	const BYTE *ptr;
443
444	if (idxSize != 0) {
445	/* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
446	* If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
447	* idxData will be != NULL
448	*/
449	if(idxData == NULL) {
450	idxData = buffer_get_sysmem((struct wined3d_buffer *) This->stateBlock->pIndexData);
451	}
452
453	if (idxSize == 2) pIdxBufS = idxData;
454	else pIdxBufL = idxData;
455	} else if (idxData) {
456	ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
457	return;
458	}
459
460	/* Start drawing in GL */
461	glBegin(glPrimitiveType);
462
463	for (vx_index = 0; vx_index < numberOfVertices; ++vx_index) {
464	if (idxData != NULL) {
465
466	/* Indexed so work out the number of strides to skip */
467	if (idxSize == 2)
468	SkipnStrides = pIdxBufS[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
469	else
470	SkipnStrides = pIdxBufL[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
471	}
472
473	for (i = MAX_ATTRIBS - 1; i >= 0; i--)
474	{
475	if (!(si->use_map & (1 << i))) continue;
476
477	ptr = si->elements[i].data +
478	si->elements[i].stride * SkipnStrides +
479	stateblock->streamOffset[si->elements[i].stream_idx];
480
481	send_attribute(This, si->elements[i].format_desc->format, i, ptr);
482	}
483	SkipnStrides++;
484	}
485
486	glEnd();
487	}
488
489	/* GL locking is done by the caller */
490	static inline void drawStridedInstanced(IWineD3DDevice iface, const struct wined3d_stream_info si,
491	UINT numberOfVertices, GLenum glPrimitiveType, const void *idxData, UINT idxSize,
492	UINT startIdx)
493	{
494	UINT numInstances = 0, i;
495	int numInstancedAttribs = 0, j;
496	UINT instancedData[sizeof(si->elements) / sizeof(si->elements) / 16 */];
497	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl ) iface;
498	IWineD3DStateBlockImpl *stateblock = This->stateBlock;
499
500	if (idxSize == 0) {
501	/* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
502	* We don't support this for now
503	*
504	* Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
505	* But the StreamSourceFreq value has a different meaning in that situation.
506	*/
507	FIXME("Non-indexed instanced drawing is not supported\n");
508	return;
509	}
510
511	TRACE("(%p) : glElements(%x, %d, ...)\n", This, glPrimitiveType, numberOfVertices);
512
513	/* First, figure out how many instances we have to draw */
514	for(i = 0; i < MAX_STREAMS; i++) {
515	/* Look at the streams and take the first one which matches */
516	if(((stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INSTANCEDATA) \|\| (stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INDEXEDDATA)) && stateblock->streamSource[i]) {
517	/* D3D9 could set streamFreq 0 with (INSTANCEDATA or INDEXEDDATA) and then it is handled as 1. See d3d9/tests/visual.c-> stream_test() */
518	if(stateblock->streamFreq[i] == 0){
519	numInstances = 1;
520	} else {
521	numInstances = stateblock->streamFreq[i]; /* use the specified number of instances from the first matched stream. See d3d9/tests/visual.c-> stream_test() */
522	}
523	break; /* break, because only the first suitable value is interesting */
524	}
525	}
526
527	for (i = 0; i < sizeof(si->elements) / sizeof(*si->elements); ++i)
528	{
529	if (!(si->use_map & (1 << i))) continue;
530
531	if (stateblock->streamFlags[si->elements[i].stream_idx] & WINED3DSTREAMSOURCE_INSTANCEDATA)
532	{
533	instancedData[numInstancedAttribs] = i;
534	numInstancedAttribs++;
535	}
536	}
537
538	/* now draw numInstances instances :-) */
539	for(i = 0; i < numInstances; i++) {
540	/* Specify the instanced attributes using immediate mode calls */
541	for(j = 0; j < numInstancedAttribs; j++) {
542	const BYTE *ptr = si->elements[instancedData[j]].data +
543	si->elements[instancedData[j]].stride * i +
544	stateblock->streamOffset[si->elements[instancedData[j]].stream_idx];
545	if (si->elements[instancedData[j]].buffer_object)
546	{
547	struct wined3d_buffer *vb =
548	(struct wined3d_buffer *)stateblock->streamSource[si->elements[instancedData[j]].stream_idx];
549	ptr += (long) buffer_get_sysmem(vb);
550	}
551
552	send_attribute(This, si->elements[instancedData[j]].format_desc->format, instancedData[j], ptr);
553	}
554
555	glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
556	(const char )idxData+(idxSize startIdx));
557	checkGLcall("glDrawElements");
558	}
559	}
560
561	static inline void remove_vbos(IWineD3DDeviceImpl This, struct wined3d_stream_info s)
562	{
563	unsigned int i;
564
565	for (i = 0; i < (sizeof(s->elements) / sizeof(*s->elements)); ++i)
566	{
567	struct wined3d_stream_info_element *e;
568
569	if (!(s->use_map & (1 << i))) continue;
570
571	e = &s->elements[i];
572	if (e->buffer_object)
573	{
574	struct wined3d_buffer vb = (struct wined3d_buffer )This->stateBlock->streamSource[e->stream_idx];
575	e->buffer_object = 0;
576	e->data = (BYTE *)((unsigned long)e->data + (unsigned long)buffer_get_sysmem(vb));
577	}
578	}
579	}
580
581	/* Routine common to the draw primitive and draw indexed primitive routines */
582	void drawPrimitive(IWineD3DDevice iface, UINT index_count, UINT StartIdx, UINT idxSize, const void idxData)
583	{
584
585	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
586	IWineD3DSurfaceImpl *target;
587	struct wined3d_context *context;
588	unsigned int i;
589
590	if (!index_count) return;
591
592	if (This->stateBlock->renderState[WINED3DRS_COLORWRITEENABLE])
593	{
594	/* Invalidate the back buffer memory so LockRect will read it the next time */
595	for (i = 0; i < This->adapter->gl_info.limits.buffers; ++i)
596	{
597	target = (IWineD3DSurfaceImpl *)This->render_targets[i];
598	if (target)
599	{
600	IWineD3DSurface_LoadLocation((IWineD3DSurface *)target, SFLAG_INDRAWABLE, NULL);
601	IWineD3DSurface_ModifyLocation((IWineD3DSurface *)target, SFLAG_INDRAWABLE, TRUE);
602	}
603	}
604	}
605
606	/* Signals other modules that a drawing is in progress and the stateblock finalized */
607	This->isInDraw = TRUE;
608
609	context = context_acquire(This, This->render_targets[0], CTXUSAGE_DRAWPRIM);
610	if (!context->valid)
611	{
612	context_release(context);
613	WARN("Invalid context, skipping draw.\n");
614	return;
615	}
616
617	if (This->stencilBufferTarget) {
618	/* Note that this depends on the context_acquire() call above to set
619	* This->render_offscreen properly. We don't currently take the
620	* Z-compare function into account, but we could skip loading the
621	* depthstencil for D3DCMP_NEVER and D3DCMP_ALWAYS as well. Also note
622	* that we never copy the stencil data.*/
623	DWORD location = context->render_offscreen ? SFLAG_DS_OFFSCREEN : SFLAG_DS_ONSCREEN;
624	if (This->stateBlock->renderState[WINED3DRS_ZWRITEENABLE]
625	\|\| This->stateBlock->renderState[WINED3DRS_ZENABLE])
626	surface_load_ds_location(This->stencilBufferTarget, context, location);
627	if (This->stateBlock->renderState[WINED3DRS_ZWRITEENABLE])
628	surface_modify_ds_location(This->stencilBufferTarget, location);
629	}
630
631	/* Ok, we will be updating the screen from here onwards so grab the lock */
632	ENTER_GL();
633	{
634	GLenum glPrimType = This->stateBlock->gl_primitive_type;
635	BOOL emulation = FALSE;
636	const struct wined3d_stream_info *stream_info = &This->strided_streams;
637	struct wined3d_stream_info stridedlcl;
638
639	if (!use_vs(This->stateBlock))
640	{
641	if (!This->strided_streams.position_transformed && context->num_untracked_materials
642	&& This->stateBlock->renderState[WINED3DRS_LIGHTING])
643	{
644	static BOOL warned;
645	if (!warned) {
646	FIXME("Using software emulation because not all material properties could be tracked\n");
647	warned = TRUE;
648	} else {
649	TRACE("Using software emulation because not all material properties could be tracked\n");
650	}
651	emulation = TRUE;
652	}
653	else if (context->fog_coord && This->stateBlock->renderState[WINED3DRS_FOGENABLE])
654	{
655	/* Either write a pipeline replacement shader or convert the specular alpha from unsigned byte
656	* to a float in the vertex buffer
657	*/
658	static BOOL warned;
659	if (!warned) {
660	FIXME("Using software emulation because manual fog coordinates are provided\n");
661	warned = TRUE;
662	} else {
663	TRACE("Using software emulation because manual fog coordinates are provided\n");
664	}
665	emulation = TRUE;
666	}
667
668	if(emulation) {
669	stream_info = &stridedlcl;
670	memcpy(&stridedlcl, &This->strided_streams, sizeof(stridedlcl));
671	remove_vbos(This, &stridedlcl);
672	}
673	}
674
675	if (This->useDrawStridedSlow \|\| emulation) {
676	/* Immediate mode drawing */
677	if (use_vs(This->stateBlock))
678	{
679	static BOOL warned;
680	if (!warned) {
681	FIXME("Using immediate mode with vertex shaders for half float emulation\n");
682	warned = TRUE;
683	} else {
684	TRACE("Using immediate mode with vertex shaders for half float emulation\n");
685	}
686	drawStridedSlowVs(iface, stream_info, index_count, glPrimType, idxData, idxSize, StartIdx);
687	} else {
688	drawStridedSlow(iface, context, stream_info, index_count,
689	glPrimType, idxData, idxSize, StartIdx);
690	}
691	} else if(This->instancedDraw) {
692	/* Instancing emulation with mixing immediate mode and arrays */
693	drawStridedInstanced(iface, &This->strided_streams, index_count,
694	glPrimType, idxData, idxSize, StartIdx);
695	} else {
696	drawStridedFast(iface, glPrimType, index_count, idxSize, idxData, StartIdx);
697	}
698	}
699
700	/* Finished updating the screen, restore lock */
701	LEAVE_GL();
702
703	for(i = 0; i < This->num_buffer_queries; i++)
704	{
705	wined3d_event_query_issue(This->buffer_queries[i], This);
706	}
707
708	if (wined3d_settings.strict_draw_ordering) wglFlush(); /* Flush to ensure ordering across contexts. */
709
710	context_release(context);
711
712	TRACE("Done all gl drawing\n");
713
714	/* Diagnostics */
715	#ifdef SHOW_FRAME_MAKEUP
716	{
717	static long int primCounter = 0;
718	/* NOTE: set primCounter to the value reported by drawprim
719	before you want to to write frame makeup to /tmp */
720	if (primCounter >= 0) {
721	WINED3DLOCKED_RECT r;
722	char buffer[80];
723	IWineD3DSurface_LockRect(This->render_targets[0], &r, NULL, WINED3DLOCK_READONLY);
724	sprintf(buffer, "/tmp/backbuffer_%ld.tga", primCounter);
725	TRACE("Saving screenshot %s\n", buffer);
726	IWineD3DSurface_SaveSnapshot(This->render_targets[0], buffer);
727	IWineD3DSurface_UnlockRect(This->render_targets[0]);
728
729	#ifdef SHOW_TEXTURE_MAKEUP
730	{
731	IWineD3DSurface *pSur;
732	int textureNo;
733	for (textureNo = 0; textureNo < MAX_COMBINED_SAMPLERS; ++textureNo) {
734	if (This->stateBlock->textures[textureNo] != NULL) {
735	sprintf(buffer, "/tmp/texture_%p_%ld_%d.tga", This->stateBlock->textures[textureNo], primCounter, textureNo);
736	TRACE("Saving texture %s\n", buffer);
737	if (IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]) == WINED3DRTYPE_TEXTURE) {
738	IWineD3DTexture_GetSurfaceLevel(This->stateBlock->textures[textureNo], 0, &pSur);
739	IWineD3DSurface_SaveSnapshot(pSur, buffer);
740	IWineD3DSurface_Release(pSur);
741	} else {
742	FIXME("base Texture isn't of type texture %d\n", IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]));
743	}
744	}
745	}
746	}
747	#endif
748	}
749	TRACE("drawprim #%ld\n", primCounter);
750	++primCounter;
751	}
752	#endif
753
754	/* Control goes back to the device, stateblock values may change again */
755	This->isInDraw = FALSE;
756	}
757
758	static void normalize_normal(float *n) {
759	float length = n[0] * n[0] + n[1] * n[1] + n[2] * n[2];
760	if (length == 0.0f) return;
761	length = sqrt(length);
762	n[0] = n[0] / length;
763	n[1] = n[1] / length;
764	n[2] = n[2] / length;
765	}
766
767	/* Tesselates a high order rectangular patch into single triangles using gl evaluators
768	*
769	* The problem is that OpenGL does not offer a direct way to return the tesselated primitives,
770	* and they can't be sent off for rendering directly either. Tesselating is slow, so we want
771	* to cache the patches in a vertex buffer. But more importantly, gl can't bind generated
772	* attributes to numbered shader attributes, so we have to store them and rebind them as needed
773	* in drawprim.
774	*
775	* To read back, the opengl feedback mode is used. This creates a problem because we want
776	* untransformed, unlit vertices, but feedback runs everything through transform and lighting.
777	* Thus disable lighting and set identity matrices to get unmodified colors and positions.
778	* To overcome clipping find the biggest x, y and z values of the vertices in the patch and scale
779	* them to [-1.0;+1.0] and set the viewport up to scale them back.
780	*
781	* Normals are more tricky: Draw white vertices with 3 directional lights, and calculate the
782	* resulting colors back to the normals.
783	*
784	* NOTE: This function activates a context for blitting, modifies matrices & viewport, but
785	* does not restore it because normally a draw follows immediately afterwards. The caller is
786	* responsible of taking care that either the gl states are restored, or the context activated
787	* for drawing to reset the lastWasBlit flag.
788	*/
789	HRESULT tesselate_rectpatch(IWineD3DDeviceImpl *This,
790	struct WineD3DRectPatch *patch) {
791	unsigned int i, j, num_quads, out_vertex_size, buffer_size, d3d_out_vertex_size;
792	float max_x = 0.0f, max_y = 0.0f, max_z = 0.0f, neg_z = 0.0f;
793	struct wined3d_stream_info stream_info;
794	struct wined3d_stream_info_element *e;
795	struct wined3d_context *context;
796	const BYTE *data;
797	const WINED3DRECTPATCH_INFO *info = &patch->RectPatchInfo;
798	DWORD vtxStride;
799	GLenum feedback_type;
800	GLfloat *feedbuffer;
801
802	/* Simply activate the context for blitting. This disables all the things we don't want and
803	* takes care of dirtifying. Dirtifying is preferred over pushing / popping, since drawing the
804	* patch (as opposed to normal draws) will most likely need different changes anyway. */
805	context = context_acquire(This, NULL, CTXUSAGE_BLIT);
806
807	/* First, locate the position data. This is provided in a vertex buffer in the stateblock.
808	* Beware of vbos
809	*/
810	device_stream_info_from_declaration(This, FALSE, &stream_info, NULL);
811
812	e = &stream_info.elements[WINED3D_FFP_POSITION];
813	if (e->buffer_object)
814	{
815	struct wined3d_buffer *vb;
816	vb = (struct wined3d_buffer *)This->stateBlock->streamSource[e->stream_idx];
817	e->data = (BYTE *)((unsigned long)e->data + (unsigned long)buffer_get_sysmem(vb));
818	}
819	vtxStride = e->stride;
820	data = e->data +
821	vtxStride * info->Stride * info->StartVertexOffsetHeight +
822	vtxStride * info->StartVertexOffsetWidth;
823
824	/* Not entirely sure about what happens with transformed vertices */
825	if (stream_info.position_transformed) FIXME("Transformed position in rectpatch generation\n");
826
827	if(vtxStride % sizeof(GLfloat)) {
828	/* glMap2f reads vertex sizes in GLfloats, the d3d stride is in bytes.
829	* I don't see how the stride could not be a multiple of 4, but make sure
830	* to check it
831	*/
832	ERR("Vertex stride is not a multiple of sizeof(GLfloat)\n");
833	}
834	if(info->Basis != WINED3DBASIS_BEZIER) {
835	FIXME("Basis is %s, how to handle this?\n", debug_d3dbasis(info->Basis));
836	}
837	if(info->Degree != WINED3DDEGREE_CUBIC) {
838	FIXME("Degree is %s, how to handle this?\n", debug_d3ddegree(info->Degree));
839	}
840
841	/* First, get the boundary cube of the input data */
842	for(j = 0; j < info->Height; j++) {
843	for(i = 0; i < info->Width; i++) {
844	const float v = (const float )(data + vtxStride * i + vtxStride * info->Stride * j);
845	if(fabs(v[0]) > max_x) max_x = fabs(v[0]);
846	if(fabs(v[1]) > max_y) max_y = fabs(v[1]);
847	if(fabs(v[2]) > max_z) max_z = fabs(v[2]);
848	if(v[2] < neg_z) neg_z = v[2];
849	}
850	}
851
852	/* This needs some improvements in the vertex decl code */
853	FIXME("Cannot find data to generate. Only generating position and normals\n");
854	patch->has_normals = TRUE;
855	patch->has_texcoords = FALSE;
856
857	ENTER_GL();
858
859	glMatrixMode(GL_PROJECTION);
860	checkGLcall("glMatrixMode(GL_PROJECTION)");
861	glLoadIdentity();
862	checkGLcall("glLoadIndentity()");
863	glScalef(1.0f / (max_x), 1.0f / (max_y), max_z == 0.0f ? 1.0f : 1.0f / (2.0f * max_z));
864	glTranslatef(0.0f, 0.0f, 0.5f);
865	checkGLcall("glScalef");
866	glViewport(-max_x, -max_y, 2 * (max_x), 2 * (max_y));
867	checkGLcall("glViewport");
868
869	/* Some states to take care of. If we're in wireframe opengl will produce lines, and confuse
870	* our feedback buffer parser
871	*/
872	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
873	checkGLcall("glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)");
874	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_FILLMODE));
875	if(patch->has_normals) {
876	static const GLfloat black[] = {0.0f, 0.0f, 0.0f, 0.0f};
877	static const GLfloat red[] = {1.0f, 0.0f, 0.0f, 0.0f};
878	static const GLfloat green[] = {0.0f, 1.0f, 0.0f, 0.0f};
879	static const GLfloat blue[] = {0.0f, 0.0f, 1.0f, 0.0f};
880	static const GLfloat white[] = {1.0f, 1.0f, 1.0f, 1.0f};
881	glEnable(GL_LIGHTING);
882	checkGLcall("glEnable(GL_LIGHTING)");
883	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, black);
884	checkGLcall("glLightModel for MODEL_AMBIENT");
885	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_AMBIENT));
886
887	for (i = 3; i < context->gl_info->limits.lights; ++i)
888	{
889	glDisable(GL_LIGHT0 + i);
890	checkGLcall("glDisable(GL_LIGHT0 + i)");
891	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(i));
892	}
893
894	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(0));
895	glLightfv(GL_LIGHT0, GL_DIFFUSE, red);
896	glLightfv(GL_LIGHT0, GL_SPECULAR, black);
897	glLightfv(GL_LIGHT0, GL_AMBIENT, black);
898	glLightfv(GL_LIGHT0, GL_POSITION, red);
899	glEnable(GL_LIGHT0);
900	checkGLcall("Setting up light 1");
901	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(1));
902	glLightfv(GL_LIGHT1, GL_DIFFUSE, green);
903	glLightfv(GL_LIGHT1, GL_SPECULAR, black);
904	glLightfv(GL_LIGHT1, GL_AMBIENT, black);
905	glLightfv(GL_LIGHT1, GL_POSITION, green);
906	glEnable(GL_LIGHT1);
907	checkGLcall("Setting up light 2");
908	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(2));
909	glLightfv(GL_LIGHT2, GL_DIFFUSE, blue);
910	glLightfv(GL_LIGHT2, GL_SPECULAR, black);
911	glLightfv(GL_LIGHT2, GL_AMBIENT, black);
912	glLightfv(GL_LIGHT2, GL_POSITION, blue);
913	glEnable(GL_LIGHT2);
914	checkGLcall("Setting up light 3");
915
916	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_MATERIAL);
917	IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_COLORVERTEX));
918	glDisable(GL_COLOR_MATERIAL);
919	glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, black);
920	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
921	glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, white);
922	checkGLcall("Setting up materials");
923	}
924
925	/* Enable the needed maps.
926	* GL_MAP2_VERTEX_3 is needed for positional data.
927	* GL_AUTO_NORMAL to generate normals from the position. Do not use GL_MAP2_NORMAL.
928	* GL_MAP2_TEXTURE_COORD_4 for texture coords
929	*/
930	num_quads = ceilf(patch->numSegs[0]) * ceilf(patch->numSegs[1]);
931	out_vertex_size = 3 /* position */;
932	d3d_out_vertex_size = 3;
933	glEnable(GL_MAP2_VERTEX_3);
934	if(patch->has_normals && patch->has_texcoords) {
935	FIXME("Texcoords not handled yet\n");
936	feedback_type = GL_3D_COLOR_TEXTURE;
937	out_vertex_size += 8;
938	d3d_out_vertex_size += 7;
939	glEnable(GL_AUTO_NORMAL);
940	glEnable(GL_MAP2_TEXTURE_COORD_4);
941	} else if(patch->has_texcoords) {
942	FIXME("Texcoords not handled yet\n");
943	feedback_type = GL_3D_COLOR_TEXTURE;
944	out_vertex_size += 7;
945	d3d_out_vertex_size += 4;
946	glEnable(GL_MAP2_TEXTURE_COORD_4);
947	} else if(patch->has_normals) {
948	feedback_type = GL_3D_COLOR;
949	out_vertex_size += 4;
950	d3d_out_vertex_size += 3;
951	glEnable(GL_AUTO_NORMAL);
952	} else {
953	feedback_type = GL_3D;
954	}
955	checkGLcall("glEnable vertex attrib generation");
956
957	buffer_size = num_quads * out_vertex_size * 2 /* triangle list / 3 /* verts per tri */
958	+ 4 * num_quads /* 2 triangle markers per quad + num verts in tri */;
959	feedbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, buffer_size * sizeof(float) * 8);
960
961	glMap2f(GL_MAP2_VERTEX_3,
962	0.0f, 1.0f, vtxStride / sizeof(float), info->Width,
963	0.0f, 1.0f, info->Stride * vtxStride / sizeof(float), info->Height,
964	(const GLfloat *)data);
965	checkGLcall("glMap2f");
966	if(patch->has_texcoords) {
967	glMap2f(GL_MAP2_TEXTURE_COORD_4,
968	0.0f, 1.0f, vtxStride / sizeof(float), info->Width,
969	0.0f, 1.0f, info->Stride * vtxStride / sizeof(float), info->Height,
970	(const GLfloat *)data);
971	checkGLcall("glMap2f");
972	}
973	glMapGrid2f(ceilf(patch->numSegs[0]), 0.0f, 1.0f, ceilf(patch->numSegs[1]), 0.0f, 1.0f);
974	checkGLcall("glMapGrid2f");
975
976	glFeedbackBuffer(buffer_size * 2, feedback_type, feedbuffer);
977	checkGLcall("glFeedbackBuffer");
978	glRenderMode(GL_FEEDBACK);
979
980	glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
981	checkGLcall("glEvalMesh2");
982
983	i = glRenderMode(GL_RENDER);
984	if(i == -1) {
985	LEAVE_GL();
986	ERR("Feedback failed. Expected %d elements back\n", buffer_size);
987	HeapFree(GetProcessHeap(), 0, feedbuffer);
988	context_release(context);
989	return WINED3DERR_DRIVERINTERNALERROR;
990	} else if(i != buffer_size) {
991	LEAVE_GL();
992	ERR("Unexpected amount of elements returned. Expected %d, got %d\n", buffer_size, i);
993	HeapFree(GetProcessHeap(), 0, feedbuffer);
994	context_release(context);
995	return WINED3DERR_DRIVERINTERNALERROR;
996	} else {
997	TRACE("Got %d elements as expected\n", i);
998	}
999
1000	HeapFree(GetProcessHeap(), 0, patch->mem);
1001	patch->mem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, num_quads * 6 * d3d_out_vertex_size * sizeof(float) * 8);
1002	i = 0;
1003	for(j = 0; j < buffer_size; j += (3 /* num verts / out_vertex_size + 2 /* tri marker */)) {
1004	if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1005	ERR("Unexpected token: %f\n", feedbuffer[j]);
1006	continue;
1007	}
1008	if(feedbuffer[j + 1] != 3) {
1009	ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1010	continue;
1011	}
1012	/* Somehow there are different ideas about back / front facing, so fix up the
1013	* vertex order
1014	*/
1015	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 2 + 2]; /* x, triangle 2 */
1016	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 2 + 3]; /* y, triangle 2 */
1017	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 2 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 3 */
1018	if(patch->has_normals) {
1019	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 2 + 5];
1020	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 2 + 6];
1021	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 2 + 7];
1022	}
1023	i += d3d_out_vertex_size;
1024
1025	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 1 + 2]; /* x, triangle 2 */
1026	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 1 + 3]; /* y, triangle 2 */
1027	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 1 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 2 */
1028	if(patch->has_normals) {
1029	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 1 + 5];
1030	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 1 + 6];
1031	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 1 + 7];
1032	}
1033	i += d3d_out_vertex_size;
1034
1035	patch->mem[i + 0] = feedbuffer[j + out_vertex_size * 0 + 2]; /* x, triangle 1 */
1036	patch->mem[i + 1] = feedbuffer[j + out_vertex_size * 0 + 3]; /* y, triangle 1 */
1037	patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 0 + 4] - 0.5f) * 4.0f * max_z; /* z, triangle 1 */
1038	if(patch->has_normals) {
1039	patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 0 + 5];
1040	patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 0 + 6];
1041	patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 0 + 7];
1042	}
1043	i += d3d_out_vertex_size;
1044	}
1045
1046	if(patch->has_normals) {
1047	/* Now do the same with reverse light directions */
1048	static const GLfloat x[] = {-1.0f, 0.0f, 0.0f, 0.0f};
1049	static const GLfloat y[] = { 0.0f, -1.0f, 0.0f, 0.0f};
1050	static const GLfloat z[] = { 0.0f, 0.0f, -1.0f, 0.0f};
1051	glLightfv(GL_LIGHT0, GL_POSITION, x);
1052	glLightfv(GL_LIGHT1, GL_POSITION, y);
1053	glLightfv(GL_LIGHT2, GL_POSITION, z);
1054	checkGLcall("Setting up reverse light directions");
1055
1056	glRenderMode(GL_FEEDBACK);
1057	checkGLcall("glRenderMode(GL_FEEDBACK)");
1058	glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1059	checkGLcall("glEvalMesh2");
1060	i = glRenderMode(GL_RENDER);
1061	checkGLcall("glRenderMode(GL_RENDER)");
1062
1063	i = 0;
1064	for(j = 0; j < buffer_size; j += (3 /* num verts / out_vertex_size + 2 /* tri marker */)) {
1065	if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1066	ERR("Unexpected token: %f\n", feedbuffer[j]);
1067	continue;
1068	}
1069	if(feedbuffer[j + 1] != 3) {
1070	ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1071	continue;
1072	}
1073	if(patch->mem[i + 3] == 0.0f)
1074	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 2 + 5];
1075	if(patch->mem[i + 4] == 0.0f)
1076	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 2 + 6];
1077	if(patch->mem[i + 5] == 0.0f)
1078	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 2 + 7];
1079	normalize_normal(patch->mem + i + 3);
1080	i += d3d_out_vertex_size;
1081
1082	if(patch->mem[i + 3] == 0.0f)
1083	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 1 + 5];
1084	if(patch->mem[i + 4] == 0.0f)
1085	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 1 + 6];
1086	if(patch->mem[i + 5] == 0.0f)
1087	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 1 + 7];
1088	normalize_normal(patch->mem + i + 3);
1089	i += d3d_out_vertex_size;
1090
1091	if(patch->mem[i + 3] == 0.0f)
1092	patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 0 + 5];
1093	if(patch->mem[i + 4] == 0.0f)
1094	patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 0 + 6];
1095	if(patch->mem[i + 5] == 0.0f)
1096	patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 0 + 7];
1097	normalize_normal(patch->mem + i + 3);
1098	i += d3d_out_vertex_size;
1099	}
1100	}
1101
1102	glDisable(GL_MAP2_VERTEX_3);
1103	glDisable(GL_AUTO_NORMAL);
1104	glDisable(GL_MAP2_NORMAL);
1105	glDisable(GL_MAP2_TEXTURE_COORD_4);
1106	checkGLcall("glDisable vertex attrib generation");
1107	LEAVE_GL();
1108
1109	context_release(context);
1110
1111	HeapFree(GetProcessHeap(), 0, feedbuffer);
1112
1113	vtxStride = 3 * sizeof(float);
1114	if(patch->has_normals) {
1115	vtxStride += 3 * sizeof(float);
1116	}
1117	if(patch->has_texcoords) {
1118	vtxStride += 4 * sizeof(float);
1119	}
1120	memset(&patch->strided, 0, sizeof(patch->strided));
1121	patch->strided.position.format = WINED3DFMT_R32G32B32_FLOAT;
1122	patch->strided.position.lpData = (BYTE *) patch->mem;
1123	patch->strided.position.dwStride = vtxStride;
1124
1125	if(patch->has_normals) {
1126	patch->strided.normal.format = WINED3DFMT_R32G32B32_FLOAT;
1127	patch->strided.normal.lpData = (BYTE ) patch->mem + 3 sizeof(float) /* pos */;
1128	patch->strided.normal.dwStride = vtxStride;
1129	}
1130	if(patch->has_texcoords) {
1131	patch->strided.texCoords[0].format = WINED3DFMT_R32G32B32A32_FLOAT;
1132	patch->strided.texCoords[0].lpData = (BYTE ) patch->mem + 3 sizeof(float) /* pos */;
1133	if(patch->has_normals) {
1134	patch->strided.texCoords[0].lpData += 3 * sizeof(float);
1135	}
1136	patch->strided.texCoords[0].dwStride = vtxStride;
1137	}
1138
1139	return WINED3D_OK;
1140	}

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source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/drawprim.c@ 32305

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