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wined3d: Rename the wined3d_format "Flags" field to "flags".
[wine/multimedia.git] / dlls / wined3d / context.c
blobbeb57d290b1d427ce7cd9b94a7c2bca9f0d06589
1 /*
2 * Context and render target management in wined3d
3 *
4 * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
5 * Copyright 2009-2010 Henri Verbeet for CodeWeavers
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include <stdio.h>
24 #ifdef HAVE_FLOAT_H
25 # include <float.h>
26 #endif
27 #include "wined3d_private.h"
28
29 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
30
31 static DWORD wined3d_context_tls_idx;
32
33 /* FBO helper functions */
34
35 /* GL locking is done by the caller */
36 void context_bind_fbo(struct wined3d_context *context, GLenum target, GLuint *fbo)
37 {
38 const struct wined3d_gl_info *gl_info = context->gl_info;
39 GLuint f;
40
41 if (!fbo)
42 {
43 f = 0;
44 }
45 else
46 {
47 if (!*fbo)
48 {
49 gl_info->fbo_ops.glGenFramebuffers(1, fbo);
50 checkGLcall("glGenFramebuffers()");
51 TRACE("Created FBO %u.\n", *fbo);
52 }
53 f = *fbo;
54 }
55
56 switch (target)
57 {
58 case GL_READ_FRAMEBUFFER:
59 if (context->fbo_read_binding == f) return;
60 context->fbo_read_binding = f;
61 break;
62
63 case GL_DRAW_FRAMEBUFFER:
64 if (context->fbo_draw_binding == f) return;
65 context->fbo_draw_binding = f;
66 break;
67
68 case GL_FRAMEBUFFER:
69 if (context->fbo_read_binding == f
70 && context->fbo_draw_binding == f) return;
71 context->fbo_read_binding = f;
72 context->fbo_draw_binding = f;
73 break;
74
75 default:
76 FIXME("Unhandled target %#x.\n", target);
77 break;
78 }
79
80 gl_info->fbo_ops.glBindFramebuffer(target, f);
81 checkGLcall("glBindFramebuffer()");
82 }
83
84 /* GL locking is done by the caller */
85 static void context_clean_fbo_attachments(const struct wined3d_gl_info *gl_info, GLenum target)
86 {
87 unsigned int i;
88
89 for (i = 0; i < gl_info->limits.buffers; ++i)
90 {
91 gl_info->fbo_ops.glFramebufferTexture2D(target, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, 0, 0);
92 checkGLcall("glFramebufferTexture2D()");
93 }
94 gl_info->fbo_ops.glFramebufferTexture2D(target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
95 checkGLcall("glFramebufferTexture2D()");
96
97 gl_info->fbo_ops.glFramebufferTexture2D(target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
98 checkGLcall("glFramebufferTexture2D()");
99 }
100
101 /* GL locking is done by the caller */
102 static void context_destroy_fbo(struct wined3d_context *context, GLuint *fbo)
103 {
104 const struct wined3d_gl_info *gl_info = context->gl_info;
105
106 context_bind_fbo(context, GL_FRAMEBUFFER, fbo);
107 context_clean_fbo_attachments(gl_info, GL_FRAMEBUFFER);
108 context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
109
110 gl_info->fbo_ops.glDeleteFramebuffers(1, fbo);
111 checkGLcall("glDeleteFramebuffers()");
112 }
113
114 /* GL locking is done by the caller */
115 static void context_apply_attachment_filter_states(IWineD3DSurfaceImpl *surface, DWORD location)
116 {
117 /* Update base texture states array */
118 if (surface->container.type == WINED3D_CONTAINER_TEXTURE)
119 {
120 IWineD3DBaseTextureImpl *texture_impl = surface->container.u.texture;
121 IWineD3DDeviceImpl *device = surface->resource.device;
122 BOOL update_minfilter = FALSE;
123 BOOL update_magfilter = FALSE;
124 struct gl_texture *gl_tex;
125
126 switch (location)
127 {
128 case SFLAG_INTEXTURE:
129 gl_tex = &texture_impl->baseTexture.texture_rgb;
130 break;
131
132 case SFLAG_INSRGBTEX:
133 gl_tex = &texture_impl->baseTexture.texture_srgb;
134 break;
135
136 default:
137 ERR("Unsupported location %s (%#x).\n", debug_surflocation(location), location);
138 IWineD3DBaseTexture_Release((IWineD3DBaseTexture *)texture_impl);
139 return;
140 }
141
142 if (gl_tex->states[WINED3DTEXSTA_MINFILTER] != WINED3DTEXF_POINT
143 || gl_tex->states[WINED3DTEXSTA_MIPFILTER] != WINED3DTEXF_NONE)
144 {
145 gl_tex->states[WINED3DTEXSTA_MINFILTER] = WINED3DTEXF_POINT;
146 gl_tex->states[WINED3DTEXSTA_MIPFILTER] = WINED3DTEXF_NONE;
147 update_minfilter = TRUE;
148 }
149
150 if (gl_tex->states[WINED3DTEXSTA_MAGFILTER] != WINED3DTEXF_POINT)
151 {
152 gl_tex->states[WINED3DTEXSTA_MAGFILTER] = WINED3DTEXF_POINT;
153 update_magfilter = TRUE;
154 }
155
156 if (texture_impl->baseTexture.bindCount)
157 {
158 WARN("Render targets should not be bound to a sampler\n");
159 IWineD3DDeviceImpl_MarkStateDirty(device, STATE_SAMPLER(texture_impl->baseTexture.sampler));
160 }
161
162 if (update_minfilter || update_magfilter)
163 {
164 GLenum target, bind_target;
165 GLint old_binding;
166
167 target = surface->texture_target;
168 if (target == GL_TEXTURE_2D)
169 {
170 bind_target = GL_TEXTURE_2D;
171 glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_binding);
172 }
173 else if (target == GL_TEXTURE_RECTANGLE_ARB)
174 {
175 bind_target = GL_TEXTURE_RECTANGLE_ARB;
176 glGetIntegerv(GL_TEXTURE_BINDING_RECTANGLE_ARB, &old_binding);
177 }
178 else
179 {
180 bind_target = GL_TEXTURE_CUBE_MAP_ARB;
181 glGetIntegerv(GL_TEXTURE_BINDING_CUBE_MAP_ARB, &old_binding);
182 }
183
184 glBindTexture(bind_target, gl_tex->name);
185 if (update_minfilter) glTexParameteri(bind_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
186 if (update_magfilter) glTexParameteri(bind_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
187 glBindTexture(bind_target, old_binding);
188 }
189
190 checkGLcall("apply_attachment_filter_states()");
191 }
192 }
193
194 /* GL locking is done by the caller */
195 void context_attach_depth_stencil_fbo(struct wined3d_context *context,
196 GLenum fbo_target, IWineD3DSurfaceImpl *depth_stencil, BOOL use_render_buffer)
197 {
198 const struct wined3d_gl_info *gl_info = context->gl_info;
199
200 TRACE("Attach depth stencil %p\n", depth_stencil);
201
202 if (depth_stencil)
203 {
204 DWORD format_flags = depth_stencil->resource.format->flags;
205
206 if (use_render_buffer && depth_stencil->current_renderbuffer)
207 {
208 if (format_flags & WINED3DFMT_FLAG_DEPTH)
209 {
210 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_DEPTH_ATTACHMENT,
211 GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id);
212 checkGLcall("glFramebufferRenderbuffer()");
213 }
214
215 if (format_flags & WINED3DFMT_FLAG_STENCIL)
216 {
217 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_STENCIL_ATTACHMENT,
218 GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id);
219 checkGLcall("glFramebufferRenderbuffer()");
220 }
221 }
222 else
223 {
224 surface_prepare_texture(depth_stencil, gl_info, FALSE);
225 context_apply_attachment_filter_states(depth_stencil, SFLAG_INTEXTURE);
226
227 if (format_flags & WINED3DFMT_FLAG_DEPTH)
228 {
229 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT,
230 depth_stencil->texture_target, depth_stencil->texture_name,
231 depth_stencil->texture_level);
232 checkGLcall("glFramebufferTexture2D()");
233 }
234
235 if (format_flags & WINED3DFMT_FLAG_STENCIL)
236 {
237 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT,
238 depth_stencil->texture_target, depth_stencil->texture_name,
239 depth_stencil->texture_level);
240 checkGLcall("glFramebufferTexture2D()");
241 }
242 }
243
244 if (!(format_flags & WINED3DFMT_FLAG_DEPTH))
245 {
246 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
247 checkGLcall("glFramebufferTexture2D()");
248 }
249
250 if (!(format_flags & WINED3DFMT_FLAG_STENCIL))
251 {
252 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
253 checkGLcall("glFramebufferTexture2D()");
254 }
255 }
256 else
257 {
258 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
259 checkGLcall("glFramebufferTexture2D()");
260
261 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
262 checkGLcall("glFramebufferTexture2D()");
263 }
264 }
265
266 /* GL locking is done by the caller */
267 static void context_attach_surface_fbo(const struct wined3d_context *context,
268 GLenum fbo_target, DWORD idx, IWineD3DSurfaceImpl *surface, DWORD location)
269 {
270 const struct wined3d_gl_info *gl_info = context->gl_info;
271
272 TRACE("Attach surface %p to %u\n", surface, idx);
273
274 if (surface)
275 {
276 switch (location)
277 {
278 case SFLAG_INTEXTURE:
279 surface_prepare_texture(surface, gl_info, FALSE);
280 context_apply_attachment_filter_states(surface, location);
281 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx,
282 surface->texture_target, surface->texture_name, surface->texture_level);
283 break;
284
285 case SFLAG_INSRGBTEX:
286 surface_prepare_texture(surface, gl_info, TRUE);
287 context_apply_attachment_filter_states(surface, location);
288 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx,
289 surface->texture_target, surface->texture_name_srgb, surface->texture_level);
290 break;
291
292 default:
293 ERR("Unsupported location %s (%#x).\n", debug_surflocation(location), location);
294 break;
295 }
296 checkGLcall("glFramebufferTexture2D()");
297 }
298 else
299 {
300 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, GL_TEXTURE_2D, 0, 0);
301 checkGLcall("glFramebufferTexture2D()");
302 }
303 }
304
305 /* GL locking is done by the caller */
306 static void context_check_fbo_status(struct wined3d_context *context, GLenum target)
307 {
308 const struct wined3d_gl_info *gl_info = context->gl_info;
309 GLenum status;
310
311 status = gl_info->fbo_ops.glCheckFramebufferStatus(target);
312 if (status == GL_FRAMEBUFFER_COMPLETE)
313 {
314 TRACE("FBO complete\n");
315 } else {
316 IWineD3DSurfaceImpl *attachment;
317 unsigned int i;
318 FIXME("FBO status %s (%#x)\n", debug_fbostatus(status), status);
319
320 if (!context->current_fbo)
321 {
322 ERR("FBO 0 is incomplete, driver bug?\n");
323 return;
324 }
325
326 FIXME("\tLocation %s (%#x).\n", debug_surflocation(context->current_fbo->location),
327 context->current_fbo->location);
328
329 /* Dump the FBO attachments */
330 for (i = 0; i < gl_info->limits.buffers; ++i)
331 {
332 attachment = context->current_fbo->render_targets[i];
333 if (attachment)
334 {
335 FIXME("\tColor attachment %d: (%p) %s %ux%u\n",
336 i, attachment, debug_d3dformat(attachment->resource.format->id),
337 attachment->pow2Width, attachment->pow2Height);
338 }
339 }
340 attachment = context->current_fbo->depth_stencil;
341 if (attachment)
342 {
343 FIXME("\tDepth attachment: (%p) %s %ux%u\n",
344 attachment, debug_d3dformat(attachment->resource.format->id),
345 attachment->pow2Width, attachment->pow2Height);
346 }
347 }
348 }
349
350 static struct fbo_entry *context_create_fbo_entry(struct wined3d_context *context,
351 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil, DWORD location)
352 {
353 const struct wined3d_gl_info *gl_info = context->gl_info;
354 struct fbo_entry *entry;
355
356 entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
357 entry->render_targets = HeapAlloc(GetProcessHeap(), 0, gl_info->limits.buffers * sizeof(*entry->render_targets));
358 memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
359 entry->depth_stencil = depth_stencil;
360 entry->location = location;
361 entry->attached = FALSE;
362 entry->id = 0;
363
364 return entry;
365 }
366
367 /* GL locking is done by the caller */
368 static void context_reuse_fbo_entry(struct wined3d_context *context, GLenum target,
369 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil,
370 DWORD location, struct fbo_entry *entry)
371 {
372 const struct wined3d_gl_info *gl_info = context->gl_info;
373
374 context_bind_fbo(context, target, &entry->id);
375 context_clean_fbo_attachments(gl_info, target);
376
377 memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
378 entry->depth_stencil = depth_stencil;
379 entry->location = location;
380 entry->attached = FALSE;
381 }
382
383 /* GL locking is done by the caller */
384 static void context_destroy_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
385 {
386 if (entry->id)
387 {
388 TRACE("Destroy FBO %d\n", entry->id);
389 context_destroy_fbo(context, &entry->id);
390 }
391 --context->fbo_entry_count;
392 list_remove(&entry->entry);
393 HeapFree(GetProcessHeap(), 0, entry->render_targets);
394 HeapFree(GetProcessHeap(), 0, entry);
395 }
396
397
398 /* GL locking is done by the caller */
399 static struct fbo_entry *context_find_fbo_entry(struct wined3d_context *context, GLenum target,
400 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil, DWORD location)
401 {
402 const struct wined3d_gl_info *gl_info = context->gl_info;
403 struct fbo_entry *entry;
404
405 LIST_FOR_EACH_ENTRY(entry, &context->fbo_list, struct fbo_entry, entry)
406 {
407 if (!memcmp(entry->render_targets,
408 render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets))
409 && entry->depth_stencil == depth_stencil && entry->location == location)
410 {
411 list_remove(&entry->entry);
412 list_add_head(&context->fbo_list, &entry->entry);
413 return entry;
414 }
415 }
416
417 if (context->fbo_entry_count < WINED3D_MAX_FBO_ENTRIES)
418 {
419 entry = context_create_fbo_entry(context, render_targets, depth_stencil, location);
420 list_add_head(&context->fbo_list, &entry->entry);
421 ++context->fbo_entry_count;
422 }
423 else
424 {
425 entry = LIST_ENTRY(list_tail(&context->fbo_list), struct fbo_entry, entry);
426 context_reuse_fbo_entry(context, target, render_targets, depth_stencil, location, entry);
427 list_remove(&entry->entry);
428 list_add_head(&context->fbo_list, &entry->entry);
429 }
430
431 return entry;
432 }
433
434 /* GL locking is done by the caller */
435 static void context_apply_fbo_entry(struct wined3d_context *context, GLenum target, struct fbo_entry *entry)
436 {
437 const struct wined3d_gl_info *gl_info = context->gl_info;
438 unsigned int i;
439
440 context_bind_fbo(context, target, &entry->id);
441
442 if (!entry->attached)
443 {
444 /* Apply render targets */
445 for (i = 0; i < gl_info->limits.buffers; ++i)
446 {
447 context_attach_surface_fbo(context, target, i, entry->render_targets[i], entry->location);
448 }
449
450 /* Apply depth targets */
451 if (entry->depth_stencil)
452 {
453 surface_set_compatible_renderbuffer(entry->depth_stencil,
454 entry->render_targets[0]->pow2Width, entry->render_targets[0]->pow2Height);
455 }
456 context_attach_depth_stencil_fbo(context, target, entry->depth_stencil, TRUE);
457
458 entry->attached = TRUE;
459 }
460 else
461 {
462 for (i = 0; i < gl_info->limits.buffers; ++i)
463 {
464 if (entry->render_targets[i])
465 context_apply_attachment_filter_states(entry->render_targets[i], entry->location);
466 }
467 if (entry->depth_stencil)
468 context_apply_attachment_filter_states(entry->depth_stencil, SFLAG_INTEXTURE);
469 }
470 }
471
472 /* GL locking is done by the caller */
473 static void context_apply_fbo_state(struct wined3d_context *context, GLenum target,
474 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil, DWORD location)
475 {
476 struct fbo_entry *entry, *entry2;
477
478 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
479 {
480 context_destroy_fbo_entry(context, entry);
481 }
482
483 if (context->rebind_fbo)
484 {
485 context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
486 context->rebind_fbo = FALSE;
487 }
488
489 if (render_targets)
490 {
491 context->current_fbo = context_find_fbo_entry(context, target, render_targets, depth_stencil, location);
492 context_apply_fbo_entry(context, target, context->current_fbo);
493 }
494 else
495 {
496 context->current_fbo = NULL;
497 context_bind_fbo(context, target, NULL);
498 }
499
500 context_check_fbo_status(context, target);
501 }
502
503 /* GL locking is done by the caller */
504 void context_apply_fbo_state_blit(struct wined3d_context *context, GLenum target,
505 IWineD3DSurfaceImpl *render_target, IWineD3DSurfaceImpl *depth_stencil, DWORD location)
506 {
507 if (location != SFLAG_INDRAWABLE || surface_is_offscreen(render_target))
508 {
509 UINT clear_size = (context->gl_info->limits.buffers - 1) * sizeof(*context->blit_targets);
510 context->blit_targets[0] = render_target;
511 if (clear_size) memset(&context->blit_targets[1], 0, clear_size);
512 context_apply_fbo_state(context, target, context->blit_targets, depth_stencil, location);
513 }
514 else
515 {
516 context_apply_fbo_state(context, target, NULL, NULL, location);
517 }
518 }
519
520 /* Context activation is done by the caller. */
521 void context_alloc_occlusion_query(struct wined3d_context *context, struct wined3d_occlusion_query *query)
522 {
523 const struct wined3d_gl_info *gl_info = context->gl_info;
524
525 if (context->free_occlusion_query_count)
526 {
527 query->id = context->free_occlusion_queries[--context->free_occlusion_query_count];
528 }
529 else
530 {
531 if (gl_info->supported[ARB_OCCLUSION_QUERY])
532 {
533 ENTER_GL();
534 GL_EXTCALL(glGenQueriesARB(1, &query->id));
535 checkGLcall("glGenQueriesARB");
536 LEAVE_GL();
537
538 TRACE("Allocated occlusion query %u in context %p.\n", query->id, context);
539 }
540 else
541 {
542 WARN("Occlusion queries not supported, not allocating query id.\n");
543 query->id = 0;
544 }
545 }
546
547 query->context = context;
548 list_add_head(&context->occlusion_queries, &query->entry);
549 }
550
551 void context_free_occlusion_query(struct wined3d_occlusion_query *query)
552 {
553 struct wined3d_context *context = query->context;
554
555 list_remove(&query->entry);
556 query->context = NULL;
557
558 if (context->free_occlusion_query_count >= context->free_occlusion_query_size - 1)
559 {
560 UINT new_size = context->free_occlusion_query_size << 1;
561 GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_occlusion_queries,
562 new_size * sizeof(*context->free_occlusion_queries));
563
564 if (!new_data)
565 {
566 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
567 return;
568 }
569
570 context->free_occlusion_query_size = new_size;
571 context->free_occlusion_queries = new_data;
572 }
573
574 context->free_occlusion_queries[context->free_occlusion_query_count++] = query->id;
575 }
576
577 /* Context activation is done by the caller. */
578 void context_alloc_event_query(struct wined3d_context *context, struct wined3d_event_query *query)
579 {
580 const struct wined3d_gl_info *gl_info = context->gl_info;
581
582 if (context->free_event_query_count)
583 {
584 query->object = context->free_event_queries[--context->free_event_query_count];
585 }
586 else
587 {
588 if (gl_info->supported[ARB_SYNC])
589 {
590 /* Using ARB_sync, not much to do here. */
591 query->object.sync = NULL;
592 TRACE("Allocated event query %p in context %p.\n", query->object.sync, context);
593 }
594 else if (gl_info->supported[APPLE_FENCE])
595 {
596 ENTER_GL();
597 GL_EXTCALL(glGenFencesAPPLE(1, &query->object.id));
598 checkGLcall("glGenFencesAPPLE");
599 LEAVE_GL();
600
601 TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
602 }
603 else if(gl_info->supported[NV_FENCE])
604 {
605 ENTER_GL();
606 GL_EXTCALL(glGenFencesNV(1, &query->object.id));
607 checkGLcall("glGenFencesNV");
608 LEAVE_GL();
609
610 TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
611 }
612 else
613 {
614 WARN("Event queries not supported, not allocating query id.\n");
615 query->object.id = 0;
616 }
617 }
618
619 query->context = context;
620 list_add_head(&context->event_queries, &query->entry);
621 }
622
623 void context_free_event_query(struct wined3d_event_query *query)
624 {
625 struct wined3d_context *context = query->context;
626
627 list_remove(&query->entry);
628 query->context = NULL;
629
630 if (context->free_event_query_count >= context->free_event_query_size - 1)
631 {
632 UINT new_size = context->free_event_query_size << 1;
633 union wined3d_gl_query_object *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_event_queries,
634 new_size * sizeof(*context->free_event_queries));
635
636 if (!new_data)
637 {
638 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->object.id, context);
639 return;
640 }
641
642 context->free_event_query_size = new_size;
643 context->free_event_queries = new_data;
644 }
645
646 context->free_event_queries[context->free_event_query_count++] = query->object;
647 }
648
649 typedef void (context_fbo_entry_func_t)(struct wined3d_context *context, struct fbo_entry *entry);
650
651 static void context_enum_surface_fbo_entries(IWineD3DDeviceImpl *device,
652 IWineD3DSurfaceImpl *surface, context_fbo_entry_func_t *callback)
653 {
654 UINT i;
655
656 for (i = 0; i < device->numContexts; ++i)
657 {
658 struct wined3d_context *context = device->contexts[i];
659 const struct wined3d_gl_info *gl_info = context->gl_info;
660 struct fbo_entry *entry, *entry2;
661
662 if (context->current_rt == surface) context->current_rt = NULL;
663
664 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
665 {
666 UINT j;
667
668 if (entry->depth_stencil == surface)
669 {
670 callback(context, entry);
671 continue;
672 }
673
674 for (j = 0; j < gl_info->limits.buffers; ++j)
675 {
676 if (entry->render_targets[j] == surface)
677 {
678 callback(context, entry);
679 break;
680 }
681 }
682 }
683 }
684 }
685
686 static void context_queue_fbo_entry_destruction(struct wined3d_context *context, struct fbo_entry *entry)
687 {
688 list_remove(&entry->entry);
689 list_add_head(&context->fbo_destroy_list, &entry->entry);
690 }
691
692 void context_resource_released(IWineD3DDeviceImpl *device, IWineD3DResource *resource, WINED3DRESOURCETYPE type)
693 {
694 if (!device->d3d_initialized) return;
695
696 switch (type)
697 {
698 case WINED3DRTYPE_SURFACE:
699 context_enum_surface_fbo_entries(device, (IWineD3DSurfaceImpl *)resource,
700 context_queue_fbo_entry_destruction);
701 break;
702
703 default:
704 break;
705 }
706 }
707
708 static void context_detach_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
709 {
710 entry->attached = FALSE;
711 }
712
713 void context_resource_unloaded(IWineD3DDeviceImpl *device, IWineD3DResource *resource, WINED3DRESOURCETYPE type)
714 {
715 switch (type)
716 {
717 case WINED3DRTYPE_SURFACE:
718 context_enum_surface_fbo_entries(device, (IWineD3DSurfaceImpl *)resource,
719 context_detach_fbo_entry);
720 break;
721
722 default:
723 break;
724 }
725 }
726
727 void context_surface_update(struct wined3d_context *context, IWineD3DSurfaceImpl *surface)
728 {
729 const struct wined3d_gl_info *gl_info = context->gl_info;
730 struct fbo_entry *entry = context->current_fbo;
731 unsigned int i;
732
733 if (!entry || context->rebind_fbo) return;
734
735 for (i = 0; i < gl_info->limits.buffers; ++i)
736 {
737 if (surface == entry->render_targets[i])
738 {
739 TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface, i);
740 context->rebind_fbo = TRUE;
741 return;
742 }
743 }
744
745 if (surface == entry->depth_stencil)
746 {
747 TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface);
748 context->rebind_fbo = TRUE;
749 }
750 }
751
752 static BOOL context_set_pixel_format(const struct wined3d_gl_info *gl_info, HDC dc, int format)
753 {
754 int current = GetPixelFormat(dc);
755
756 if (current == format) return TRUE;
757
758 if (!current)
759 {
760 if (!SetPixelFormat(dc, format, NULL))
761 {
762 ERR("Failed to set pixel format %d on device context %p, last error %#x.\n",
763 format, dc, GetLastError());
764 return FALSE;
765 }
766 return TRUE;
767 }
768
769 /* By default WGL doesn't allow pixel format adjustments but we need it
770 * here. For this reason there's a Wine specific wglSetPixelFormat()
771 * which allows us to set the pixel format multiple times. Only use it
772 * when really needed. */
773 if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
774 {
775 if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format, NULL)))
776 {
777 ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
778 format, dc);
779 return FALSE;
780 }
781 return TRUE;
782 }
783
784 /* OpenGL doesn't allow pixel format adjustments. Print an error and
785 * continue using the old format. There's a big chance that the old
786 * format works although with a performance hit and perhaps rendering
787 * errors. */
788 ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
789 format, dc, current);
790 return TRUE;
791 }
792
793 static void context_update_window(struct wined3d_context *context)
794 {
795 TRACE("Updating context %p window from %p to %p.\n",
796 context, context->win_handle, context->swapchain->win_handle);
797
798 if (context->valid)
799 {
800 if (!ReleaseDC(context->win_handle, context->hdc))
801 {
802 ERR("Failed to release device context %p, last error %#x.\n",
803 context->hdc, GetLastError());
804 }
805 }
806 else context->valid = 1;
807
808 context->win_handle = context->swapchain->win_handle;
809
810 if (!(context->hdc = GetDC(context->win_handle)))
811 {
812 ERR("Failed to get a device context for window %p.\n", context->win_handle);
813 goto err;
814 }
815
816 if (!context_set_pixel_format(context->gl_info, context->hdc, context->pixel_format))
817 {
818 ERR("Failed to set pixel format %d on device context %p.\n",
819 context->pixel_format, context->hdc);
820 goto err;
821 }
822
823 if (!pwglMakeCurrent(context->hdc, context->glCtx))
824 {
825 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
826 context->glCtx, context->hdc, GetLastError());
827 goto err;
828 }
829
830 return;
831
832 err:
833 context->valid = 0;
834 }
835
836 /* Do not call while under the GL lock. */
837 static void context_validate(struct wined3d_context *context)
838 {
839 HWND wnd = WindowFromDC(context->hdc);
840
841 if (wnd != context->win_handle)
842 {
843 WARN("DC %p belongs to window %p instead of %p.\n",
844 context->hdc, wnd, context->win_handle);
845 context->valid = 0;
846 }
847
848 if (context->win_handle != context->swapchain->win_handle)
849 context_update_window(context);
850 }
851
852 /* Do not call while under the GL lock. */
853 static void context_destroy_gl_resources(struct wined3d_context *context)
854 {
855 const struct wined3d_gl_info *gl_info = context->gl_info;
856 struct wined3d_occlusion_query *occlusion_query;
857 struct wined3d_event_query *event_query;
858 struct fbo_entry *entry, *entry2;
859 HGLRC restore_ctx;
860 HDC restore_dc;
861 unsigned int i;
862
863 restore_ctx = pwglGetCurrentContext();
864 restore_dc = pwglGetCurrentDC();
865
866 context_validate(context);
867 if (context->valid && restore_ctx != context->glCtx) pwglMakeCurrent(context->hdc, context->glCtx);
868 else restore_ctx = NULL;
869
870 ENTER_GL();
871
872 LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry)
873 {
874 if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY])
875 GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query->id));
876 occlusion_query->context = NULL;
877 }
878
879 LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry)
880 {
881 if (context->valid)
882 {
883 if (gl_info->supported[ARB_SYNC])
884 {
885 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
886 }
887 else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id));
888 else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id));
889 }
890 event_query->context = NULL;
891 }
892
893 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
894 {
895 if (!context->valid) entry->id = 0;
896 context_destroy_fbo_entry(context, entry);
897 }
898
899 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
900 {
901 if (!context->valid) entry->id = 0;
902 context_destroy_fbo_entry(context, entry);
903 }
904
905 if (context->valid)
906 {
907 if (context->dst_fbo)
908 {
909 TRACE("Destroy dst FBO %d\n", context->dst_fbo);
910 context_destroy_fbo(context, &context->dst_fbo);
911 }
912 if (context->dummy_arbfp_prog)
913 {
914 GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog));
915 }
916
917 if (gl_info->supported[ARB_OCCLUSION_QUERY])
918 GL_EXTCALL(glDeleteQueriesARB(context->free_occlusion_query_count, context->free_occlusion_queries));
919
920 if (gl_info->supported[ARB_SYNC])
921 {
922 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
923 }
924 else if (gl_info->supported[APPLE_FENCE])
925 {
926 for (i = 0; i < context->free_event_query_count; ++i)
927 {
928 GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id));
929 }
930 }
931 else if (gl_info->supported[NV_FENCE])
932 {
933 for (i = 0; i < context->free_event_query_count; ++i)
934 {
935 GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id));
936 }
937 }
938
939 checkGLcall("context cleanup");
940 }
941
942 LEAVE_GL();
943
944 HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries);
945 HeapFree(GetProcessHeap(), 0, context->free_event_queries);
946
947 if (restore_ctx)
948 {
949 if (!pwglMakeCurrent(restore_dc, restore_ctx))
950 {
951 DWORD err = GetLastError();
952 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
953 restore_ctx, restore_dc, err);
954 }
955 }
956 else if (pwglGetCurrentContext() && !pwglMakeCurrent(NULL, NULL))
957 {
958 ERR("Failed to disable GL context.\n");
959 }
960
961 ReleaseDC(context->win_handle, context->hdc);
962
963 if (!pwglDeleteContext(context->glCtx))
964 {
965 DWORD err = GetLastError();
966 ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err);
967 }
968 }
969
970 DWORD context_get_tls_idx(void)
971 {
972 return wined3d_context_tls_idx;
973 }
974
975 void context_set_tls_idx(DWORD idx)
976 {
977 wined3d_context_tls_idx = idx;
978 }
979
980 struct wined3d_context *context_get_current(void)
981 {
982 return TlsGetValue(wined3d_context_tls_idx);
983 }
984
985 /* Do not call while under the GL lock. */
986 BOOL context_set_current(struct wined3d_context *ctx)
987 {
988 struct wined3d_context *old = context_get_current();
989
990 if (old == ctx)
991 {
992 TRACE("Already using D3D context %p.\n", ctx);
993 return TRUE;
994 }
995
996 if (old)
997 {
998 if (old->destroyed)
999 {
1000 TRACE("Switching away from destroyed context %p.\n", old);
1001 context_destroy_gl_resources(old);
1002 HeapFree(GetProcessHeap(), 0, old);
1003 }
1004 else
1005 {
1006 old->current = 0;
1007 }
1008 }
1009
1010 if (ctx)
1011 {
1012 TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc);
1013 if (!pwglMakeCurrent(ctx->hdc, ctx->glCtx))
1014 {
1015 DWORD err = GetLastError();
1016 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
1017 ctx->glCtx, ctx->hdc, err);
1018 TlsSetValue(wined3d_context_tls_idx, NULL);
1019 return FALSE;
1020 }
1021 ctx->current = 1;
1022 }
1023 else if(pwglGetCurrentContext())
1024 {
1025 TRACE("Clearing current D3D context.\n");
1026 if (!pwglMakeCurrent(NULL, NULL))
1027 {
1028 DWORD err = GetLastError();
1029 ERR("Failed to clear current GL context, last error %#x.\n", err);
1030 TlsSetValue(wined3d_context_tls_idx, NULL);
1031 return FALSE;
1032 }
1033 }
1034
1035 return TlsSetValue(wined3d_context_tls_idx, ctx);
1036 }
1037
1038 void context_release(struct wined3d_context *context)
1039 {
1040 TRACE("Releasing context %p, level %u.\n", context, context->level);
1041
1042 if (WARN_ON(d3d))
1043 {
1044 if (!context->level)
1045 WARN("Context %p is not active.\n", context);
1046 else if (context != context_get_current())
1047 WARN("Context %p is not the current context.\n", context);
1048 }
1049
1050 if (!--context->level && context->restore_ctx)
1051 {
1052 TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc);
1053 if (!pwglMakeCurrent(context->restore_dc, context->restore_ctx))
1054 {
1055 DWORD err = GetLastError();
1056 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
1057 context->restore_ctx, context->restore_dc, err);
1058 }
1059 context->restore_ctx = NULL;
1060 context->restore_dc = NULL;
1061 }
1062 }
1063
1064 static void context_enter(struct wined3d_context *context)
1065 {
1066 TRACE("Entering context %p, level %u.\n", context, context->level + 1);
1067
1068 if (!context->level++)
1069 {
1070 const struct wined3d_context *current_context = context_get_current();
1071 HGLRC current_gl = pwglGetCurrentContext();
1072
1073 if (current_gl && (!current_context || current_context->glCtx != current_gl))
1074 {
1075 TRACE("Another GL context (%p on device context %p) is already current.\n",
1076 current_gl, pwglGetCurrentDC());
1077 context->restore_ctx = current_gl;
1078 context->restore_dc = pwglGetCurrentDC();
1079 }
1080 }
1081 }
1082
1083 /*****************************************************************************
1084 * Context_MarkStateDirty
1085 *
1086 * Marks a state in a context dirty. Only one context, opposed to
1087 * IWineD3DDeviceImpl_MarkStateDirty, which marks the state dirty in all
1088 * contexts
1089 *
1090 * Params:
1091 * context: Context to mark the state dirty in
1092 * state: State to mark dirty
1093 * StateTable: Pointer to the state table in use(for state grouping)
1094 *
1095 *****************************************************************************/
1096 static void Context_MarkStateDirty(struct wined3d_context *context, DWORD state, const struct StateEntry *StateTable)
1097 {
1098 DWORD rep = StateTable[state].representative;
1099 DWORD idx;
1100 BYTE shift;
1101
1102 if (isStateDirty(context, rep)) return;
1103
1104 context->dirtyArray[context->numDirtyEntries++] = rep;
1105 idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
1106 shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
1107 context->isStateDirty[idx] |= (1 << shift);
1108 }
1109
1110 /* This function takes care of WineD3D pixel format selection. */
1111 static int WineD3D_ChoosePixelFormat(IWineD3DDeviceImpl *This, HDC hdc,
1112 const struct wined3d_format *color_format, const struct wined3d_format *ds_format,
1113 BOOL auxBuffers, int numSamples, BOOL findCompatible)
1114 {
1115 int iPixelFormat=0;
1116 unsigned int matchtry;
1117 short redBits, greenBits, blueBits, alphaBits, colorBits;
1118 short depthBits=0, stencilBits=0;
1119
1120 static const struct
1121 {
1122 BOOL require_aux;
1123 BOOL exact_alpha;
1124 BOOL exact_color;
1125 }
1126 matches[] =
1127 {
1128 /* First, try without alpha match buffers. MacOS supports aux buffers only
1129 * on A8R8G8B8, and we prefer better offscreen rendering over an alpha match.
1130 * Then try without aux buffers - this is the most common cause for not
1131 * finding a pixel format. Also some drivers(the open source ones)
1132 * only offer 32 bit ARB pixel formats. First try without an exact alpha
1133 * match, then try without an exact alpha and color match.
1134 */
1135 { TRUE, TRUE, TRUE },
1136 { TRUE, FALSE, TRUE },
1137 { FALSE, TRUE, TRUE },
1138 { FALSE, FALSE, TRUE },
1139 { TRUE, FALSE, FALSE },
1140 { FALSE, FALSE, FALSE },
1141 };
1142
1143 int i = 0;
1144 int nCfgs = This->adapter->nCfgs;
1145
1146 TRACE("ColorFormat=%s, DepthStencilFormat=%s, auxBuffers=%d, numSamples=%d, findCompatible=%d\n",
1147 debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id),
1148 auxBuffers, numSamples, findCompatible);
1149
1150 if (!getColorBits(color_format, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits))
1151 {
1152 ERR("Unable to get color bits for format %s (%#x)!\n",
1153 debug_d3dformat(color_format->id), color_format->id);
1154 return 0;
1155 }
1156
1157 getDepthStencilBits(ds_format, &depthBits, &stencilBits);
1158
1159 for(matchtry = 0; matchtry < (sizeof(matches) / sizeof(matches[0])) && !iPixelFormat; matchtry++) {
1160 for(i=0; i<nCfgs; i++) {
1161 BOOL exactDepthMatch = TRUE;
1162 WineD3D_PixelFormat *cfg = &This->adapter->cfgs[i];
1163
1164 /* For now only accept RGBA formats. Perhaps some day we will
1165 * allow floating point formats for pbuffers. */
1166 if(cfg->iPixelType != WGL_TYPE_RGBA_ARB)
1167 continue;
1168
1169 /* In window mode we need a window drawable format and double buffering. */
1170 if(!(cfg->windowDrawable && cfg->doubleBuffer))
1171 continue;
1172
1173 /* We like to have aux buffers in backbuffer mode */
1174 if(auxBuffers && !cfg->auxBuffers && matches[matchtry].require_aux)
1175 continue;
1176
1177 if(matches[matchtry].exact_color) {
1178 if(cfg->redSize != redBits)
1179 continue;
1180 if(cfg->greenSize != greenBits)
1181 continue;
1182 if(cfg->blueSize != blueBits)
1183 continue;
1184 } else {
1185 if(cfg->redSize < redBits)
1186 continue;
1187 if(cfg->greenSize < greenBits)
1188 continue;
1189 if(cfg->blueSize < blueBits)
1190 continue;
1191 }
1192 if(matches[matchtry].exact_alpha) {
1193 if(cfg->alphaSize != alphaBits)
1194 continue;
1195 } else {
1196 if(cfg->alphaSize < alphaBits)
1197 continue;
1198 }
1199
1200 /* We try to locate a format which matches our requirements exactly. In case of
1201 * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1202 if(cfg->depthSize < depthBits)
1203 continue;
1204 else if(cfg->depthSize > depthBits)
1205 exactDepthMatch = FALSE;
1206
1207 /* In all cases make sure the number of stencil bits matches our requirements
1208 * even when we don't need stencil because it could affect performance EXCEPT
1209 * on cards which don't offer depth formats without stencil like the i915 drivers
1210 * on Linux. */
1211 if(stencilBits != cfg->stencilSize && !(This->adapter->brokenStencil && stencilBits <= cfg->stencilSize))
1212 continue;
1213
1214 /* Check multisampling support */
1215 if(cfg->numSamples != numSamples)
1216 continue;
1217
1218 /* When we have passed all the checks then we have found a format which matches our
1219 * requirements. Note that we only check for a limit number of capabilities right now,
1220 * so there can easily be a dozen of pixel formats which appear to be the 'same' but
1221 * can still differ in things like multisampling, stereo, SRGB and other flags.
1222 */
1223
1224 /* Exit the loop as we have found a format :) */
1225 if(exactDepthMatch) {
1226 iPixelFormat = cfg->iPixelFormat;
1227 break;
1228 } else if(!iPixelFormat) {
1229 /* In the end we might end up with a format which doesn't exactly match our depth
1230 * requirements. Accept the first format we found because formats with higher iPixelFormat
1231 * values tend to have more extended capabilities (e.g. multisampling) which we don't need. */
1232 iPixelFormat = cfg->iPixelFormat;
1233 }
1234 }
1235 }
1236
1237 /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1238 if(!iPixelFormat && !findCompatible) {
1239 ERR("Can't find a suitable iPixelFormat\n");
1240 return FALSE;
1241 } else if(!iPixelFormat) {
1242 PIXELFORMATDESCRIPTOR pfd;
1243
1244 TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1245 /* PixelFormat selection */
1246 ZeroMemory(&pfd, sizeof(pfd));
1247 pfd.nSize = sizeof(pfd);
1248 pfd.nVersion = 1;
1249 pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
1250 pfd.iPixelType = PFD_TYPE_RGBA;
1251 pfd.cAlphaBits = alphaBits;
1252 pfd.cColorBits = colorBits;
1253 pfd.cDepthBits = depthBits;
1254 pfd.cStencilBits = stencilBits;
1255 pfd.iLayerType = PFD_MAIN_PLANE;
1256
1257 iPixelFormat = ChoosePixelFormat(hdc, &pfd);
1258 if(!iPixelFormat) {
1259 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
1260 ERR("Can't find a suitable iPixelFormat\n");
1261 return FALSE;
1262 }
1263 }
1264
1265 TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1266 iPixelFormat, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id));
1267 return iPixelFormat;
1268 }
1269
1270 /* Do not call while under the GL lock. */
1271 struct wined3d_context *context_create(IWineD3DSwapChainImpl *swapchain,
1272 IWineD3DSurfaceImpl *target, const struct wined3d_format *ds_format)
1273 {
1274 IWineD3DDeviceImpl *device = swapchain->device;
1275 const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1276 const struct wined3d_format *color_format;
1277 struct wined3d_context *ret;
1278 PIXELFORMATDESCRIPTOR pfd;
1279 BOOL auxBuffers = FALSE;
1280 int numSamples = 0;
1281 int pixel_format;
1282 unsigned int s;
1283 DWORD state;
1284 HGLRC ctx;
1285 HDC hdc;
1286
1287 TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle);
1288
1289 ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
1290 if (!ret)
1291 {
1292 ERR("Failed to allocate context memory.\n");
1293 return NULL;
1294 }
1295
1296 if (!(hdc = GetDC(swapchain->win_handle)))
1297 {
1298 ERR("Failed to retrieve a device context.\n");
1299 goto out;
1300 }
1301
1302 color_format = target->resource.format;
1303
1304 /* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1305 * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1306 if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER)
1307 {
1308 auxBuffers = TRUE;
1309
1310 if (color_format->id == WINED3DFMT_B4G4R4X4_UNORM)
1311 color_format = wined3d_get_format(gl_info, WINED3DFMT_B4G4R4A4_UNORM);
1312 else if (color_format->id == WINED3DFMT_B8G8R8X8_UNORM)
1313 color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1314 }
1315
1316 /* DirectDraw supports 8bit paletted render targets and these are used by
1317 * old games like Starcraft and C&C. Most modern hardware doesn't support
1318 * 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1319 * conversion (ab)uses the alpha component for storing the palette index.
1320 * For this reason we require a format with 8bit alpha, so request
1321 * A8R8G8B8. */
1322 if (color_format->id == WINED3DFMT_P8_UINT)
1323 color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1324
1325 /* D3D only allows multisampling when SwapEffect is set to WINED3DSWAPEFFECT_DISCARD. */
1326 if (swapchain->presentParms.MultiSampleType && (swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD))
1327 {
1328 if (!gl_info->supported[ARB_MULTISAMPLE])
1329 WARN("The application is requesting multisampling without support.\n");
1330 else
1331 {
1332 TRACE("Requesting multisample type %#x.\n", swapchain->presentParms.MultiSampleType);
1333 numSamples = swapchain->presentParms.MultiSampleType;
1334 }
1335 }
1336
1337 /* Try to find a pixel format which matches our requirements. */
1338 pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format, ds_format,
1339 auxBuffers, numSamples, FALSE /* findCompatible */);
1340
1341 /* Try to locate a compatible format if we weren't able to find anything. */
1342 if (!pixel_format)
1343 {
1344 TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1345 pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format, ds_format,
1346 auxBuffers, 0 /* numSamples */, TRUE /* findCompatible */);
1347 }
1348
1349 /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1350 if (!pixel_format)
1351 {
1352 ERR("Can't find a suitable pixel format.\n");
1353 goto out;
1354 }
1355
1356 DescribePixelFormat(hdc, pixel_format, sizeof(pfd), &pfd);
1357 if (!context_set_pixel_format(gl_info, hdc, pixel_format))
1358 {
1359 ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc);
1360 goto out;
1361 }
1362
1363 ctx = pwglCreateContext(hdc);
1364 if (device->numContexts)
1365 {
1366 if (!pwglShareLists(device->contexts[0]->glCtx, ctx))
1367 {
1368 DWORD err = GetLastError();
1369 ERR("wglShareLists(%p, %p) failed, last error %#x.\n",
1370 device->contexts[0]->glCtx, ctx, err);
1371 }
1372 }
1373
1374 if(!ctx) {
1375 ERR("Failed to create a WGL context\n");
1376 goto out;
1377 }
1378
1379 if (!device_context_add(device, ret))
1380 {
1381 ERR("Failed to add the newly created context to the context list\n");
1382 if (!pwglDeleteContext(ctx))
1383 {
1384 DWORD err = GetLastError();
1385 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, err);
1386 }
1387 goto out;
1388 }
1389
1390 ret->gl_info = gl_info;
1391
1392 /* Mark all states dirty to force a proper initialization of the states
1393 * on the first use of the context. */
1394 for (state = 0; state <= STATE_HIGHEST; ++state)
1395 {
1396 if (device->StateTable[state].representative)
1397 Context_MarkStateDirty(ret, state, device->StateTable);
1398 }
1399
1400 ret->swapchain = swapchain;
1401 ret->current_rt = target;
1402 ret->tid = GetCurrentThreadId();
1403
1404 ret->render_offscreen = surface_is_offscreen(target);
1405 ret->draw_buffer_dirty = TRUE;
1406 ret->valid = 1;
1407
1408 ret->glCtx = ctx;
1409 ret->win_handle = swapchain->win_handle;
1410 ret->hdc = hdc;
1411 ret->pixel_format = pixel_format;
1412
1413 if (device->shader_backend->shader_dirtifyable_constants((IWineD3DDevice *)device))
1414 {
1415 /* Create the dirty constants array and initialize them to dirty */
1416 ret->vshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
1417 sizeof(*ret->vshader_const_dirty) * device->d3d_vshader_constantF);
1418 ret->pshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
1419 sizeof(*ret->pshader_const_dirty) * device->d3d_pshader_constantF);
1420 memset(ret->vshader_const_dirty, 1,
1421 sizeof(*ret->vshader_const_dirty) * device->d3d_vshader_constantF);
1422 memset(ret->pshader_const_dirty, 1,
1423 sizeof(*ret->pshader_const_dirty) * device->d3d_pshader_constantF);
1424 }
1425
1426 ret->blit_targets = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1427 gl_info->limits.buffers * sizeof(*ret->blit_targets));
1428 if (!ret->blit_targets) goto out;
1429
1430 ret->draw_buffers = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1431 gl_info->limits.buffers * sizeof(*ret->draw_buffers));
1432 if (!ret->draw_buffers) goto out;
1433
1434 ret->free_occlusion_query_size = 4;
1435 ret->free_occlusion_queries = HeapAlloc(GetProcessHeap(), 0,
1436 ret->free_occlusion_query_size * sizeof(*ret->free_occlusion_queries));
1437 if (!ret->free_occlusion_queries) goto out;
1438
1439 list_init(&ret->occlusion_queries);
1440
1441 ret->free_event_query_size = 4;
1442 ret->free_event_queries = HeapAlloc(GetProcessHeap(), 0,
1443 ret->free_event_query_size * sizeof(*ret->free_event_queries));
1444 if (!ret->free_event_queries) goto out;
1445
1446 list_init(&ret->event_queries);
1447
1448 TRACE("Successfully created new context %p\n", ret);
1449
1450 list_init(&ret->fbo_list);
1451 list_init(&ret->fbo_destroy_list);
1452
1453 context_enter(ret);
1454
1455 /* Set up the context defaults */
1456 if (!context_set_current(ret))
1457 {
1458 ERR("Cannot activate context to set up defaults\n");
1459 context_release(ret);
1460 goto out;
1461 }
1462
1463 ENTER_GL();
1464
1465 glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers);
1466
1467 TRACE("Setting up the screen\n");
1468 /* Clear the screen */
1469 glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
1470 checkGLcall("glClearColor");
1471 glClearIndex(0);
1472 glClearDepth(1);
1473 glClearStencil(0xffff);
1474
1475 checkGLcall("glClear");
1476
1477 glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
1478 checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1479
1480 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
1481 checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1482
1483 glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1484 checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1485
1486 glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);
1487 checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1488 glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);
1489 checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);");
1490
1491 if (gl_info->supported[APPLE_CLIENT_STORAGE])
1492 {
1493 /* Most textures will use client storage if supported. Exceptions are non-native power of 2 textures
1494 * and textures in DIB sections(due to the memory protection).
1495 */
1496 glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
1497 checkGLcall("glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE)");
1498 }
1499 if (gl_info->supported[ARB_VERTEX_BLEND])
1500 {
1501 /* Direct3D always uses n-1 weights for n world matrices and uses 1 - sum for the last one
1502 * this is equal to GL_WEIGHT_SUM_UNITY_ARB. Enabling it doesn't do anything unless
1503 * GL_VERTEX_BLEND_ARB isn't enabled too
1504 */
1505 glEnable(GL_WEIGHT_SUM_UNITY_ARB);
1506 checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1507 }
1508 if (gl_info->supported[NV_TEXTURE_SHADER2])
1509 {
1510 /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1511 * the previous texture where to source the offset from is always unit - 1.
1512 */
1513 for (s = 1; s < gl_info->limits.textures; ++s)
1514 {
1515 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
1516 glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
1517 checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1518 }
1519 }
1520 if (gl_info->supported[ARB_FRAGMENT_PROGRAM])
1521 {
1522 /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1523 * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1524 * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1525 * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1526 * is ever assigned.
1527 *
1528 * So make sure a program is assigned to each context. The first real ARBFP use will set a different
1529 * program and the dummy program is destroyed when the context is destroyed.
1530 */
1531 const char *dummy_program =
1532 "!!ARBfp1.0\n"
1533 "MOV result.color, fragment.color.primary;\n"
1534 "END\n";
1535 GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog));
1536 GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog));
1537 GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program));
1538 }
1539
1540 for (s = 0; s < gl_info->limits.point_sprite_units; ++s)
1541 {
1542 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
1543 glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
1544 checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1545 }
1546
1547 if (gl_info->supported[WINED3D_GL_VERSION_2_0])
1548 {
1549 /* Windows doesn't support to query the glPointParameteri function pointer, so use the
1550 * NV_POINT_SPRITE extension.
1551 */
1552 if (glPointParameteri)
1553 {
1554 glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT);
1555 checkGLcall("glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT)");
1556 }
1557 else if (gl_info->supported[NV_POINT_SPRITE])
1558 {
1559 GL_EXTCALL(glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT));
1560 checkGLcall("glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT)");
1561 }
1562 }
1563
1564 if (gl_info->supported[ARB_PROVOKING_VERTEX])
1565 {
1566 GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION));
1567 }
1568 else if (gl_info->supported[EXT_PROVOKING_VERTEX])
1569 {
1570 GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT));
1571 }
1572
1573 LEAVE_GL();
1574
1575 device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
1576
1577 TRACE("Created context %p.\n", ret);
1578
1579 return ret;
1580
1581 out:
1582 HeapFree(GetProcessHeap(), 0, ret->free_event_queries);
1583 HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries);
1584 HeapFree(GetProcessHeap(), 0, ret->draw_buffers);
1585 HeapFree(GetProcessHeap(), 0, ret->blit_targets);
1586 HeapFree(GetProcessHeap(), 0, ret->pshader_const_dirty);
1587 HeapFree(GetProcessHeap(), 0, ret->vshader_const_dirty);
1588 HeapFree(GetProcessHeap(), 0, ret);
1589 return NULL;
1590 }
1591
1592 /* Do not call while under the GL lock. */
1593 void context_destroy(IWineD3DDeviceImpl *This, struct wined3d_context *context)
1594 {
1595 BOOL destroy;
1596
1597 TRACE("Destroying ctx %p\n", context);
1598
1599 if (context->tid == GetCurrentThreadId() || !context->current)
1600 {
1601 context_destroy_gl_resources(context);
1602 TlsSetValue(wined3d_context_tls_idx, NULL);
1603 destroy = TRUE;
1604 }
1605 else
1606 {
1607 context->destroyed = 1;
1608 destroy = FALSE;
1609 }
1610
1611 HeapFree(GetProcessHeap(), 0, context->draw_buffers);
1612 HeapFree(GetProcessHeap(), 0, context->blit_targets);
1613 HeapFree(GetProcessHeap(), 0, context->vshader_const_dirty);
1614 HeapFree(GetProcessHeap(), 0, context->pshader_const_dirty);
1615 device_context_remove(This, context);
1616 if (destroy) HeapFree(GetProcessHeap(), 0, context);
1617 }
1618
1619 /* GL locking is done by the caller */
1620 static inline void set_blit_dimension(UINT width, UINT height) {
1621 glMatrixMode(GL_PROJECTION);
1622 checkGLcall("glMatrixMode(GL_PROJECTION)");
1623 glLoadIdentity();
1624 checkGLcall("glLoadIdentity()");
1625 glOrtho(0, width, 0, height, 0.0, -1.0);
1626 checkGLcall("glOrtho");
1627 glViewport(0, 0, width, height);
1628 checkGLcall("glViewport");
1629 }
1630
1631 /*****************************************************************************
1632 * SetupForBlit
1633 *
1634 * Sets up a context for DirectDraw blitting.
1635 * All texture units are disabled, texture unit 0 is set as current unit
1636 * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
1637 * color writing enabled for all channels
1638 * register combiners disabled, shaders disabled
1639 * world matrix is set to identity, texture matrix 0 too
1640 * projection matrix is setup for drawing screen coordinates
1641 *
1642 * Params:
1643 * This: Device to activate the context for
1644 * context: Context to setup
1645 *
1646 *****************************************************************************/
1647 /* Context activation is done by the caller. */
1648 static void SetupForBlit(IWineD3DDeviceImpl *This, struct wined3d_context *context)
1649 {
1650 int i;
1651 const struct StateEntry *StateTable = This->StateTable;
1652 const struct wined3d_gl_info *gl_info = context->gl_info;
1653 UINT width = context->current_rt->currentDesc.Width;
1654 UINT height = context->current_rt->currentDesc.Height;
1655 DWORD sampler;
1656
1657 TRACE("Setting up context %p for blitting\n", context);
1658 if(context->last_was_blit) {
1659 if(context->blit_w != width || context->blit_h != height) {
1660 ENTER_GL();
1661 set_blit_dimension(width, height);
1662 LEAVE_GL();
1663 context->blit_w = width; context->blit_h = height;
1664 /* No need to dirtify here, the states are still dirtified because they weren't
1665 * applied since the last SetupForBlit call. Otherwise last_was_blit would not
1666 * be set
1667 */
1668 }
1669 TRACE("Context is already set up for blitting, nothing to do\n");
1670 return;
1671 }
1672 context->last_was_blit = TRUE;
1673
1674 /* TODO: Use a display list */
1675
1676 /* Disable shaders */
1677 ENTER_GL();
1678 This->shader_backend->shader_select(context, FALSE, FALSE);
1679 LEAVE_GL();
1680
1681 Context_MarkStateDirty(context, STATE_VSHADER, StateTable);
1682 Context_MarkStateDirty(context, STATE_PIXELSHADER, StateTable);
1683
1684 /* Call ENTER_GL() once for all gl calls below. In theory we should not call
1685 * helper functions in between gl calls. This function is full of Context_MarkStateDirty
1686 * which can safely be called from here, we only lock once instead locking/unlocking
1687 * after each GL call.
1688 */
1689 ENTER_GL();
1690
1691 /* Disable all textures. The caller can then bind a texture it wants to blit
1692 * from
1693 *
1694 * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
1695 * function texture unit. No need to care for higher samplers
1696 */
1697 for (i = gl_info->limits.textures - 1; i > 0 ; --i)
1698 {
1699 sampler = This->rev_tex_unit_map[i];
1700 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i));
1701 checkGLcall("glActiveTextureARB");
1702
1703 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1704 {
1705 glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1706 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1707 }
1708 glDisable(GL_TEXTURE_3D);
1709 checkGLcall("glDisable GL_TEXTURE_3D");
1710 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1711 {
1712 glDisable(GL_TEXTURE_RECTANGLE_ARB);
1713 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1714 }
1715 glDisable(GL_TEXTURE_2D);
1716 checkGLcall("glDisable GL_TEXTURE_2D");
1717
1718 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1719 checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
1720
1721 if (sampler != WINED3D_UNMAPPED_STAGE)
1722 {
1723 if (sampler < MAX_TEXTURES) {
1724 Context_MarkStateDirty(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable);
1725 }
1726 Context_MarkStateDirty(context, STATE_SAMPLER(sampler), StateTable);
1727 }
1728 }
1729 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB));
1730 checkGLcall("glActiveTextureARB");
1731
1732 sampler = This->rev_tex_unit_map[0];
1733
1734 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1735 {
1736 glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1737 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1738 }
1739 glDisable(GL_TEXTURE_3D);
1740 checkGLcall("glDisable GL_TEXTURE_3D");
1741 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1742 {
1743 glDisable(GL_TEXTURE_RECTANGLE_ARB);
1744 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1745 }
1746 glDisable(GL_TEXTURE_2D);
1747 checkGLcall("glDisable GL_TEXTURE_2D");
1748
1749 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1750
1751 glMatrixMode(GL_TEXTURE);
1752 checkGLcall("glMatrixMode(GL_TEXTURE)");
1753 glLoadIdentity();
1754 checkGLcall("glLoadIdentity()");
1755
1756 if (gl_info->supported[EXT_TEXTURE_LOD_BIAS])
1757 {
1758 glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
1759 GL_TEXTURE_LOD_BIAS_EXT,
1760 0.0f);
1761 checkGLcall("glTexEnvf GL_TEXTURE_LOD_BIAS_EXT ...");
1762 }
1763
1764 if (sampler != WINED3D_UNMAPPED_STAGE)
1765 {
1766 if (sampler < MAX_TEXTURES) {
1767 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_TEXTURE0 + sampler), StateTable);
1768 Context_MarkStateDirty(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable);
1769 }
1770 Context_MarkStateDirty(context, STATE_SAMPLER(sampler), StateTable);
1771 }
1772
1773 /* Other misc states */
1774 glDisable(GL_ALPHA_TEST);
1775 checkGLcall("glDisable(GL_ALPHA_TEST)");
1776 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHATESTENABLE), StateTable);
1777 glDisable(GL_LIGHTING);
1778 checkGLcall("glDisable GL_LIGHTING");
1779 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_LIGHTING), StateTable);
1780 glDisable(GL_DEPTH_TEST);
1781 checkGLcall("glDisable GL_DEPTH_TEST");
1782 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ZENABLE), StateTable);
1783 glDisableWINE(GL_FOG);
1784 checkGLcall("glDisable GL_FOG");
1785 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_FOGENABLE), StateTable);
1786 glDisable(GL_BLEND);
1787 checkGLcall("glDisable GL_BLEND");
1788 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
1789 glDisable(GL_CULL_FACE);
1790 checkGLcall("glDisable GL_CULL_FACE");
1791 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CULLMODE), StateTable);
1792 glDisable(GL_STENCIL_TEST);
1793 checkGLcall("glDisable GL_STENCIL_TEST");
1794 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_STENCILENABLE), StateTable);
1795 glDisable(GL_SCISSOR_TEST);
1796 checkGLcall("glDisable GL_SCISSOR_TEST");
1797 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), StateTable);
1798 if (gl_info->supported[ARB_POINT_SPRITE])
1799 {
1800 glDisable(GL_POINT_SPRITE_ARB);
1801 checkGLcall("glDisable GL_POINT_SPRITE_ARB");
1802 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_POINTSPRITEENABLE), StateTable);
1803 }
1804 glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
1805 checkGLcall("glColorMask");
1806 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE), StateTable);
1807 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE1), StateTable);
1808 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE2), StateTable);
1809 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE3), StateTable);
1810 if (gl_info->supported[EXT_SECONDARY_COLOR])
1811 {
1812 glDisable(GL_COLOR_SUM_EXT);
1813 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SPECULARENABLE), StateTable);
1814 checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
1815 }
1816
1817 /* Setup transforms */
1818 glMatrixMode(GL_MODELVIEW);
1819 checkGLcall("glMatrixMode(GL_MODELVIEW)");
1820 glLoadIdentity();
1821 checkGLcall("glLoadIdentity()");
1822 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_WORLDMATRIX(0)), StateTable);
1823
1824 context->last_was_rhw = TRUE;
1825 Context_MarkStateDirty(context, STATE_VDECL, StateTable); /* because of last_was_rhw = TRUE */
1826
1827 glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
1828 glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
1829 glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
1830 glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
1831 glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
1832 glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
1833 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CLIPPING), StateTable);
1834
1835 set_blit_dimension(width, height);
1836
1837 LEAVE_GL();
1838
1839 context->blit_w = width; context->blit_h = height;
1840 Context_MarkStateDirty(context, STATE_VIEWPORT, StateTable);
1841 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);
1842
1843
1844 This->frag_pipe->enable_extension((IWineD3DDevice *) This, FALSE);
1845 }
1846
1847 /*****************************************************************************
1848 * findThreadContextForSwapChain
1849 *
1850 * Searches a swapchain for all contexts and picks one for the thread tid.
1851 * If none can be found the swapchain is requested to create a new context
1852 *
1853 *****************************************************************************/
1854 static struct wined3d_context *findThreadContextForSwapChain(IWineD3DSwapChain *swapchain, DWORD tid)
1855 {
1856 unsigned int i;
1857
1858 for(i = 0; i < ((IWineD3DSwapChainImpl *) swapchain)->num_contexts; i++) {
1859 if(((IWineD3DSwapChainImpl *) swapchain)->context[i]->tid == tid) {
1860 return ((IWineD3DSwapChainImpl *) swapchain)->context[i];
1861 }
1862
1863 }
1864
1865 /* Create a new context for the thread */
1866 return swapchain_create_context_for_thread(swapchain);
1867 }
1868
1869 /* Do not call while under the GL lock. */
1870 static struct wined3d_context *FindContext(IWineD3DDeviceImpl *This, IWineD3DSurfaceImpl *target)
1871 {
1872 struct wined3d_context *current_context = context_get_current();
1873 DWORD tid = GetCurrentThreadId();
1874 struct wined3d_context *context;
1875
1876 if (current_context && current_context->destroyed) current_context = NULL;
1877
1878 if (!target)
1879 {
1880 if (current_context
1881 && current_context->current_rt
1882 && current_context->swapchain->device == This)
1883 {
1884 target = current_context->current_rt;
1885 }
1886 else
1887 {
1888 IWineD3DSwapChainImpl *swapchain = (IWineD3DSwapChainImpl *)This->swapchains[0];
1889 if (swapchain->back_buffers) target = swapchain->back_buffers[0];
1890 else target = swapchain->front_buffer;
1891 }
1892 }
1893
1894 if (current_context && current_context->current_rt == target)
1895 {
1896 context_validate(current_context);
1897 return current_context;
1898 }
1899
1900 if (target->container.type == WINED3D_CONTAINER_SWAPCHAIN)
1901 {
1902 IWineD3DSwapChain *swapchain;
1903
1904 TRACE("Rendering onscreen\n");
1905
1906 swapchain = (IWineD3DSwapChain *)target->container.u.swapchain;
1907 context = findThreadContextForSwapChain(swapchain, tid);
1908 }
1909 else
1910 {
1911 TRACE("Rendering offscreen\n");
1912
1913 /* Stay with the currently active context. */
1914 if (current_context && current_context->swapchain->device == This)
1915 {
1916 context = current_context;
1917 }
1918 else
1919 {
1920 /* This may happen if the app jumps straight into offscreen rendering
1921 * Start using the context of the primary swapchain. tid == 0 is no problem
1922 * for findThreadContextForSwapChain.
1923 *
1924 * Can also happen on thread switches - in that case findThreadContextForSwapChain
1925 * is perfect to call. */
1926 context = findThreadContextForSwapChain(This->swapchains[0], tid);
1927 }
1928 }
1929
1930 context_validate(context);
1931
1932 return context;
1933 }
1934
1935 /* Context activation is done by the caller. */
1936 static void context_apply_draw_buffers(struct wined3d_context *context, UINT rt_count, IWineD3DSurfaceImpl **rts)
1937 {
1938 if (!surface_is_offscreen(rts[0]))
1939 {
1940 ENTER_GL();
1941 glDrawBuffer(surface_get_gl_buffer(rts[0]));
1942 checkGLcall("glDrawBuffer()");
1943 LEAVE_GL();
1944 }
1945 else
1946 {
1947 ENTER_GL();
1948 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
1949 {
1950 const struct wined3d_gl_info *gl_info = context->gl_info;
1951 unsigned int i;
1952
1953 for (i = 0; i < gl_info->limits.buffers; ++i)
1954 {
1955 if (i < rt_count && rts[i])
1956 context->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
1957 else
1958 context->draw_buffers[i] = GL_NONE;
1959 }
1960
1961 if (gl_info->supported[ARB_DRAW_BUFFERS])
1962 {
1963 GL_EXTCALL(glDrawBuffersARB(gl_info->limits.buffers, context->draw_buffers));
1964 checkGLcall("glDrawBuffers()");
1965 }
1966 else
1967 {
1968 glDrawBuffer(context->draw_buffers[0]);
1969 checkGLcall("glDrawBuffer()");
1970 }
1971 }
1972 else
1973 {
1974 glDrawBuffer(rts[0]->resource.device->offscreenBuffer);
1975 checkGLcall("glDrawBuffer()");
1976 }
1977 LEAVE_GL();
1978 }
1979 }
1980
1981 /* GL locking is done by the caller. */
1982 void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
1983 {
1984 glDrawBuffer(buffer);
1985 checkGLcall("glDrawBuffer()");
1986 context->draw_buffer_dirty = TRUE;
1987 }
1988
1989 static inline void context_set_render_offscreen(struct wined3d_context *context, const struct StateEntry *StateTable,
1990 BOOL offscreen)
1991 {
1992 const struct wined3d_gl_info *gl_info = context->gl_info;
1993
1994 if (context->render_offscreen == offscreen) return;
1995
1996 if (gl_info->supported[WINED3D_GL_VERSION_2_0])
1997 {
1998 /* Windows doesn't support to query the glPointParameteri function pointer, so use the
1999 * NV_POINT_SPRITE extension.
2000 */
2001 if (glPointParameteri)
2002 {
2003 glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, offscreen ? GL_LOWER_LEFT : GL_UPPER_LEFT);
2004 checkGLcall("glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, ...)");
2005 }
2006 else if (gl_info->supported[NV_POINT_SPRITE])
2007 {
2008 GL_EXTCALL(glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, offscreen ? GL_LOWER_LEFT : GL_UPPER_LEFT));
2009 checkGLcall("glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, ...)");
2010 }
2011 }
2012
2013 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);
2014 Context_MarkStateDirty(context, STATE_VDECL, StateTable);
2015 Context_MarkStateDirty(context, STATE_VIEWPORT, StateTable);
2016 Context_MarkStateDirty(context, STATE_SCISSORRECT, StateTable);
2017 Context_MarkStateDirty(context, STATE_FRONTFACE, StateTable);
2018 context->render_offscreen = offscreen;
2019 }
2020
2021 static BOOL match_depth_stencil_format(const struct wined3d_format *existing,
2022 const struct wined3d_format *required)
2023 {
2024 short existing_depth, existing_stencil, required_depth, required_stencil;
2025
2026 if (existing == required) return TRUE;
2027 if ((existing->flags & WINED3DFMT_FLAG_FLOAT) != (required->flags & WINED3DFMT_FLAG_FLOAT)) return FALSE;
2028
2029 getDepthStencilBits(existing, &existing_depth, &existing_stencil);
2030 getDepthStencilBits(required, &required_depth, &required_stencil);
2031
2032 if(existing_depth < required_depth) return FALSE;
2033 /* If stencil bits are used the exact amount is required - otherwise wrapping
2034 * won't work correctly */
2035 if(required_stencil && required_stencil != existing_stencil) return FALSE;
2036 return TRUE;
2037 }
2038 /* The caller provides a context */
2039 static void context_validate_onscreen_formats(IWineD3DDeviceImpl *device,
2040 struct wined3d_context *context, IWineD3DSurfaceImpl *depth_stencil)
2041 {
2042 /* Onscreen surfaces are always in a swapchain */
2043 IWineD3DSwapChainImpl *swapchain = context->current_rt->container.u.swapchain;
2044
2045 if (context->render_offscreen || !depth_stencil) return;
2046 if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->resource.format)) return;
2047
2048 /* TODO: If the requested format would satisfy the needs of the existing one(reverse match),
2049 * or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new
2050 * format. */
2051 WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n");
2052
2053 /* The currently active context is the necessary context to access the swapchain's onscreen buffers */
2054 surface_load_location(context->current_rt, SFLAG_INTEXTURE, NULL);
2055 swapchain->render_to_fbo = TRUE;
2056 context_set_render_offscreen(context, device->StateTable, TRUE);
2057 }
2058
2059 /* Context activation is done by the caller. */
2060 void context_apply_blit_state(struct wined3d_context *context, IWineD3DDeviceImpl *device)
2061 {
2062 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2063 {
2064 context_validate_onscreen_formats(device, context, NULL);
2065
2066 if (context->render_offscreen)
2067 {
2068 surface_internal_preload(context->current_rt, SRGB_RGB);
2069
2070 ENTER_GL();
2071 context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, context->current_rt, NULL, SFLAG_INTEXTURE);
2072 LEAVE_GL();
2073 }
2074 else
2075 {
2076 ENTER_GL();
2077 context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
2078 LEAVE_GL();
2079 }
2080
2081 context->draw_buffer_dirty = TRUE;
2082 }
2083
2084 if (context->draw_buffer_dirty)
2085 {
2086 context_apply_draw_buffers(context, 1, &context->current_rt);
2087 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
2088 context->draw_buffer_dirty = FALSE;
2089 }
2090
2091 SetupForBlit(device, context);
2092 }
2093
2094 /* Context activation is done by the caller. */
2095 void context_apply_clear_state(struct wined3d_context *context, IWineD3DDeviceImpl *device,
2096 UINT rt_count, IWineD3DSurfaceImpl **rts, IWineD3DSurfaceImpl *depth_stencil)
2097 {
2098 const struct StateEntry *state_table = device->StateTable;
2099 UINT i;
2100
2101 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2102 {
2103 context_validate_onscreen_formats(device, context, depth_stencil);
2104
2105 ENTER_GL();
2106
2107 if (surface_is_offscreen(rts[0]))
2108 {
2109 for (i = 0; i < rt_count; ++i)
2110 {
2111 context->blit_targets[i] = rts[i];
2112 }
2113 while (i < context->gl_info->limits.buffers)
2114 {
2115 context->blit_targets[i] = NULL;
2116 ++i;
2117 }
2118 context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets, depth_stencil, SFLAG_INTEXTURE);
2119 }
2120 else
2121 {
2122 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, SFLAG_INDRAWABLE);
2123 }
2124
2125 LEAVE_GL();
2126 }
2127
2128 context_apply_draw_buffers(context, rt_count, rts);
2129 context->draw_buffer_dirty = TRUE;
2130
2131 if (context->last_was_blit)
2132 {
2133 device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
2134 }
2135
2136 /* Blending and clearing should be orthogonal, but tests on the nvidia
2137 * driver show that disabling blending when clearing improves the clearing
2138 * performance incredibly. */
2139 ENTER_GL();
2140 glDisable(GL_BLEND);
2141 glEnable(GL_SCISSOR_TEST);
2142 checkGLcall("glEnable GL_SCISSOR_TEST");
2143 LEAVE_GL();
2144
2145 context->last_was_blit = FALSE;
2146 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), state_table);
2147 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), state_table);
2148 Context_MarkStateDirty(context, STATE_SCISSORRECT, state_table);
2149 }
2150
2151 /* Context activation is done by the caller. */
2152 void context_apply_draw_state(struct wined3d_context *context, IWineD3DDeviceImpl *device)
2153 {
2154 const struct StateEntry *state_table = device->StateTable;
2155 unsigned int i;
2156
2157 /* Preload resources before FBO setup. Texture preload in particular may
2158 * result in changes to the current FBO, due to using e.g. FBO blits for
2159 * updating a resource location. */
2160 IWineD3DDeviceImpl_FindTexUnitMap(device);
2161 device_preload_textures(device);
2162 if (isStateDirty(context, STATE_VDECL))
2163 device_update_stream_info(device, context->gl_info);
2164
2165 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2166 {
2167 context_validate_onscreen_formats(device, context, device->depth_stencil);
2168
2169 if (!context->render_offscreen)
2170 {
2171 ENTER_GL();
2172 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, SFLAG_INDRAWABLE);
2173 LEAVE_GL();
2174 }
2175 else
2176 {
2177 ENTER_GL();
2178 context_apply_fbo_state(context, GL_FRAMEBUFFER, device->render_targets,
2179 device->depth_stencil, SFLAG_INTEXTURE);
2180 LEAVE_GL();
2181 }
2182 }
2183
2184 if (context->draw_buffer_dirty)
2185 {
2186 context_apply_draw_buffers(context, context->gl_info->limits.buffers, device->render_targets);
2187 context->draw_buffer_dirty = FALSE;
2188 }
2189
2190 if (context->last_was_blit)
2191 {
2192 device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
2193 }
2194
2195 ENTER_GL();
2196 for (i = 0; i < context->numDirtyEntries; ++i)
2197 {
2198 DWORD rep = context->dirtyArray[i];
2199 DWORD idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
2200 BYTE shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
2201 context->isStateDirty[idx] &= ~(1 << shift);
2202 state_table[rep].apply(rep, device->stateBlock, context);
2203 }
2204 LEAVE_GL();
2205 context->numDirtyEntries = 0; /* This makes the whole list clean */
2206 context->last_was_blit = FALSE;
2207 }
2208
2209 static void context_setup_target(IWineD3DDeviceImpl *device,
2210 struct wined3d_context *context, IWineD3DSurfaceImpl *target)
2211 {
2212 BOOL old_render_offscreen = context->render_offscreen, render_offscreen;
2213 const struct StateEntry *StateTable = device->StateTable;
2214
2215 if (!target) return;
2216 render_offscreen = surface_is_offscreen(target);
2217 if (context->current_rt == target && render_offscreen == old_render_offscreen) return;
2218
2219 /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
2220 * the alpha blend state changes with different render target formats. */
2221 if (!context->current_rt)
2222 {
2223 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2224 }
2225 else
2226 {
2227 const struct wined3d_format *old = context->current_rt->resource.format;
2228 const struct wined3d_format *new = target->resource.format;
2229
2230 if (old->id != new->id)
2231 {
2232 /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
2233 if ((old->alpha_mask && !new->alpha_mask) || (!old->alpha_mask && new->alpha_mask)
2234 || !(new->flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING))
2235 {
2236 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2237 }
2238 /* Update sRGB writing when switching between formats that do/do not support sRGB writing */
2239 if ((old->flags & WINED3DFMT_FLAG_SRGB_WRITE) != (new->flags & WINED3DFMT_FLAG_SRGB_WRITE))
2240 {
2241 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SRGBWRITEENABLE), StateTable);
2242 }
2243 }
2244
2245 /* When switching away from an offscreen render target, and we're not
2246 * using FBOs, we have to read the drawable into the texture. This is
2247 * done via PreLoad (and SFLAG_INDRAWABLE set on the surface). There
2248 * are some things that need care though. PreLoad needs a GL context,
2249 * and FindContext is called before the context is activated. It also
2250 * has to be called with the old rendertarget active, otherwise a
2251 * wrong drawable is read. */
2252 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
2253 && old_render_offscreen && context->current_rt != target)
2254 {
2255 /* Read the back buffer of the old drawable into the destination texture. */
2256 if (context->current_rt->texture_name_srgb)
2257 {
2258 surface_internal_preload(context->current_rt, SRGB_BOTH);
2259 }
2260 else
2261 {
2262 surface_internal_preload(context->current_rt, SRGB_RGB);
2263 }
2264
2265 surface_modify_location(context->current_rt, SFLAG_INDRAWABLE, FALSE);
2266 }
2267 }
2268
2269 context->draw_buffer_dirty = TRUE;
2270 context->current_rt = target;
2271 context_set_render_offscreen(context, StateTable, render_offscreen);
2272 }
2273
2274 /* Do not call while under the GL lock. */
2275 struct wined3d_context *context_acquire(IWineD3DDeviceImpl *device, IWineD3DSurfaceImpl *target)
2276 {
2277 struct wined3d_context *current_context = context_get_current();
2278 struct wined3d_context *context;
2279
2280 TRACE("device %p, target %p.\n", device, target);
2281
2282 context = FindContext(device, target);
2283 context_setup_target(device, context, target);
2284 context_enter(context);
2285 if (!context->valid) return context;
2286
2287 if (context != current_context)
2288 {
2289 if (!context_set_current(context)) ERR("Failed to activate the new context.\n");
2290 else device->frag_pipe->enable_extension((IWineD3DDevice *)device, !context->last_was_blit);
2291
2292 if (context->vshader_const_dirty)
2293 {
2294 memset(context->vshader_const_dirty, 1,
2295 sizeof(*context->vshader_const_dirty) * device->d3d_vshader_constantF);
2296 device->highest_dirty_vs_const = device->d3d_vshader_constantF;
2297 }
2298 if (context->pshader_const_dirty)
2299 {
2300 memset(context->pshader_const_dirty, 1,
2301 sizeof(*context->pshader_const_dirty) * device->d3d_pshader_constantF);
2302 device->highest_dirty_ps_const = device->d3d_pshader_constantF;
2303 }
2304 }
2305 else if (context->restore_ctx)
2306 {
2307 if (!pwglMakeCurrent(context->hdc, context->glCtx))
2308 {
2309 DWORD err = GetLastError();
2310 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
2311 context->hdc, context->glCtx, err);
2312 }
2313 }
2314
2315 return context;
2316 }
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