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wined3d: Use the FBO cache in stretch_rect_fbo().
[wine/hramrach.git] / dlls / wined3d / context.c
blob24624abb0f431e4644e4298f91cf1e7cff7fe32e
1 /*
2 * Context and render target management in wined3d
3 *
4 * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
5 * Copyright 2009 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 #define GLINFO_LOCATION (*gl_info)
32
33 static DWORD wined3d_context_tls_idx;
34
35 /* FBO helper functions */
36
37 /* GL locking is done by the caller */
38 void context_bind_fbo(struct wined3d_context *context, GLenum target, GLuint *fbo)
39 {
40 const struct wined3d_gl_info *gl_info = context->gl_info;
41 GLuint f;
42
43 if (!fbo)
44 {
45 f = 0;
46 }
47 else
48 {
49 if (!*fbo)
50 {
51 gl_info->fbo_ops.glGenFramebuffers(1, fbo);
52 checkGLcall("glGenFramebuffers()");
53 TRACE("Created FBO %u.\n", *fbo);
54 }
55 f = *fbo;
56 }
57
58 switch (target)
59 {
60 case GL_READ_FRAMEBUFFER:
61 if (context->fbo_read_binding == f) return;
62 context->fbo_read_binding = f;
63 break;
64
65 case GL_DRAW_FRAMEBUFFER:
66 if (context->fbo_draw_binding == f) return;
67 context->fbo_draw_binding = f;
68 break;
69
70 case GL_FRAMEBUFFER:
71 if (context->fbo_read_binding == f
72 && context->fbo_draw_binding == f) return;
73 context->fbo_read_binding = f;
74 context->fbo_draw_binding = f;
75 break;
76
77 default:
78 FIXME("Unhandled target %#x.\n", target);
79 break;
80 }
81
82 gl_info->fbo_ops.glBindFramebuffer(target, f);
83 checkGLcall("glBindFramebuffer()");
84 }
85
86 /* GL locking is done by the caller */
87 static void context_clean_fbo_attachments(const struct wined3d_gl_info *gl_info)
88 {
89 unsigned int i;
90
91 for (i = 0; i < gl_info->limits.buffers; ++i)
92 {
93 gl_info->fbo_ops.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, 0, 0);
94 checkGLcall("glFramebufferTexture2D()");
95 }
96 gl_info->fbo_ops.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
97 checkGLcall("glFramebufferTexture2D()");
98
99 gl_info->fbo_ops.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
100 checkGLcall("glFramebufferTexture2D()");
101 }
102
103 /* GL locking is done by the caller */
104 static void context_destroy_fbo(struct wined3d_context *context, GLuint *fbo)
105 {
106 const struct wined3d_gl_info *gl_info = context->gl_info;
107
108 context_bind_fbo(context, GL_FRAMEBUFFER, fbo);
109 context_clean_fbo_attachments(gl_info);
110 context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
111
112 gl_info->fbo_ops.glDeleteFramebuffers(1, fbo);
113 checkGLcall("glDeleteFramebuffers()");
114 }
115
116 /* GL locking is done by the caller */
117 static void context_apply_attachment_filter_states(IWineD3DSurfaceImpl *surface)
118 {
119 IWineD3DBaseTextureImpl *texture_impl;
120
121 /* Update base texture states array */
122 if (SUCCEEDED(IWineD3DSurface_GetContainer((IWineD3DSurface *)surface,
123 &IID_IWineD3DBaseTexture, (void **)&texture_impl)))
124 {
125 IWineD3DDeviceImpl *device = surface->resource.device;
126 BOOL update_minfilter = FALSE;
127 BOOL update_magfilter = FALSE;
128
129 if (texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MINFILTER] != WINED3DTEXF_POINT
130 || texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MIPFILTER] != WINED3DTEXF_NONE)
131 {
132 texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MINFILTER] = WINED3DTEXF_POINT;
133 texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MIPFILTER] = WINED3DTEXF_NONE;
134 update_minfilter = TRUE;
135 }
136
137 if (texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MAGFILTER] != WINED3DTEXF_POINT)
138 {
139 texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MAGFILTER] = WINED3DTEXF_POINT;
140 update_magfilter = TRUE;
141 }
142
143 if (texture_impl->baseTexture.bindCount)
144 {
145 WARN("Render targets should not be bound to a sampler\n");
146 IWineD3DDeviceImpl_MarkStateDirty(device, STATE_SAMPLER(texture_impl->baseTexture.sampler));
147 }
148
149 IWineD3DBaseTexture_Release((IWineD3DBaseTexture *)texture_impl);
150
151 if (update_minfilter || update_magfilter)
152 {
153 GLenum target, bind_target;
154 GLint old_binding;
155
156 target = surface->texture_target;
157 if (target == GL_TEXTURE_2D)
158 {
159 bind_target = GL_TEXTURE_2D;
160 glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_binding);
161 }
162 else if (target == GL_TEXTURE_RECTANGLE_ARB)
163 {
164 bind_target = GL_TEXTURE_RECTANGLE_ARB;
165 glGetIntegerv(GL_TEXTURE_BINDING_RECTANGLE_ARB, &old_binding);
166 }
167 else
168 {
169 bind_target = GL_TEXTURE_CUBE_MAP_ARB;
170 glGetIntegerv(GL_TEXTURE_BINDING_CUBE_MAP_ARB, &old_binding);
171 }
172
173 glBindTexture(bind_target, surface->texture_name);
174 if (update_minfilter) glTexParameteri(bind_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
175 if (update_magfilter) glTexParameteri(bind_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
176 glBindTexture(bind_target, old_binding);
177 }
178
179 checkGLcall("apply_attachment_filter_states()");
180 }
181 }
182
183 /* GL locking is done by the caller */
184 void context_attach_depth_stencil_fbo(struct wined3d_context *context,
185 GLenum fbo_target, IWineD3DSurfaceImpl *depth_stencil, BOOL use_render_buffer)
186 {
187 const struct wined3d_gl_info *gl_info = context->gl_info;
188
189 TRACE("Attach depth stencil %p\n", depth_stencil);
190
191 if (depth_stencil)
192 {
193 DWORD format_flags = depth_stencil->resource.format_desc->Flags;
194
195 if (use_render_buffer && depth_stencil->current_renderbuffer)
196 {
197 if (format_flags & WINED3DFMT_FLAG_DEPTH)
198 {
199 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_DEPTH_ATTACHMENT,
200 GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id);
201 checkGLcall("glFramebufferRenderbuffer()");
202 }
203
204 if (format_flags & WINED3DFMT_FLAG_STENCIL)
205 {
206 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_STENCIL_ATTACHMENT,
207 GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id);
208 checkGLcall("glFramebufferRenderbuffer()");
209 }
210 }
211 else
212 {
213 surface_prepare_texture(depth_stencil, gl_info, FALSE);
214 context_apply_attachment_filter_states(depth_stencil);
215
216 if (format_flags & WINED3DFMT_FLAG_DEPTH)
217 {
218 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT,
219 depth_stencil->texture_target, depth_stencil->texture_name,
220 depth_stencil->texture_level);
221 checkGLcall("glFramebufferTexture2D()");
222 }
223
224 if (format_flags & WINED3DFMT_FLAG_STENCIL)
225 {
226 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT,
227 depth_stencil->texture_target, depth_stencil->texture_name,
228 depth_stencil->texture_level);
229 checkGLcall("glFramebufferTexture2D()");
230 }
231 }
232
233 if (!(format_flags & WINED3DFMT_FLAG_DEPTH))
234 {
235 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
236 checkGLcall("glFramebufferTexture2D()");
237 }
238
239 if (!(format_flags & WINED3DFMT_FLAG_STENCIL))
240 {
241 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
242 checkGLcall("glFramebufferTexture2D()");
243 }
244 }
245 else
246 {
247 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
248 checkGLcall("glFramebufferTexture2D()");
249
250 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
251 checkGLcall("glFramebufferTexture2D()");
252 }
253 }
254
255 /* GL locking is done by the caller */
256 void context_attach_surface_fbo(const struct wined3d_context *context,
257 GLenum fbo_target, DWORD idx, IWineD3DSurfaceImpl *surface)
258 {
259 const struct wined3d_gl_info *gl_info = context->gl_info;
260
261 TRACE("Attach surface %p to %u\n", surface, idx);
262
263 if (surface)
264 {
265 surface_prepare_texture(surface, gl_info, FALSE);
266 context_apply_attachment_filter_states(surface);
267
268 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, surface->texture_target,
269 surface->texture_name, surface->texture_level);
270 checkGLcall("glFramebufferTexture2D()");
271 }
272 else
273 {
274 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, GL_TEXTURE_2D, 0, 0);
275 checkGLcall("glFramebufferTexture2D()");
276 }
277 }
278
279 /* GL locking is done by the caller */
280 static void context_check_fbo_status(struct wined3d_context *context, GLenum target)
281 {
282 const struct wined3d_gl_info *gl_info = context->gl_info;
283 GLenum status;
284
285 status = gl_info->fbo_ops.glCheckFramebufferStatus(target);
286 if (status == GL_FRAMEBUFFER_COMPLETE)
287 {
288 TRACE("FBO complete\n");
289 } else {
290 IWineD3DSurfaceImpl *attachment;
291 unsigned int i;
292 FIXME("FBO status %s (%#x)\n", debug_fbostatus(status), status);
293
294 if (!context->current_fbo)
295 {
296 ERR("FBO 0 is incomplete, driver bug?\n");
297 return;
298 }
299
300 /* Dump the FBO attachments */
301 for (i = 0; i < gl_info->limits.buffers; ++i)
302 {
303 attachment = context->current_fbo->render_targets[i];
304 if (attachment)
305 {
306 FIXME("\tColor attachment %d: (%p) %s %ux%u\n",
307 i, attachment, debug_d3dformat(attachment->resource.format_desc->format),
308 attachment->pow2Width, attachment->pow2Height);
309 }
310 }
311 attachment = context->current_fbo->depth_stencil;
312 if (attachment)
313 {
314 FIXME("\tDepth attachment: (%p) %s %ux%u\n",
315 attachment, debug_d3dformat(attachment->resource.format_desc->format),
316 attachment->pow2Width, attachment->pow2Height);
317 }
318 }
319 }
320
321 static struct fbo_entry *context_create_fbo_entry(struct wined3d_context *context,
322 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil)
323 {
324 const struct wined3d_gl_info *gl_info = context->gl_info;
325 struct fbo_entry *entry;
326
327 entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
328 entry->render_targets = HeapAlloc(GetProcessHeap(), 0, gl_info->limits.buffers * sizeof(*entry->render_targets));
329 memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
330 entry->depth_stencil = depth_stencil;
331 entry->attached = FALSE;
332 entry->id = 0;
333
334 return entry;
335 }
336
337 /* GL locking is done by the caller */
338 static void context_reuse_fbo_entry(struct wined3d_context *context, GLenum target,
339 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil,
340 struct fbo_entry *entry)
341 {
342 const struct wined3d_gl_info *gl_info = context->gl_info;
343
344 context_bind_fbo(context, target, &entry->id);
345 context_clean_fbo_attachments(gl_info);
346
347 memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
348 entry->depth_stencil = depth_stencil;
349 entry->attached = FALSE;
350 }
351
352 /* GL locking is done by the caller */
353 static void context_destroy_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
354 {
355 if (entry->id)
356 {
357 TRACE("Destroy FBO %d\n", entry->id);
358 context_destroy_fbo(context, &entry->id);
359 }
360 --context->fbo_entry_count;
361 list_remove(&entry->entry);
362 HeapFree(GetProcessHeap(), 0, entry->render_targets);
363 HeapFree(GetProcessHeap(), 0, entry);
364 }
365
366
367 /* GL locking is done by the caller */
368 static struct fbo_entry *context_find_fbo_entry(struct wined3d_context *context, GLenum target,
369 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil)
370 {
371 const struct wined3d_gl_info *gl_info = context->gl_info;
372 struct fbo_entry *entry;
373
374 LIST_FOR_EACH_ENTRY(entry, &context->fbo_list, struct fbo_entry, entry)
375 {
376 if (!memcmp(entry->render_targets,
377 render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets))
378 && entry->depth_stencil == depth_stencil)
379 {
380 list_remove(&entry->entry);
381 list_add_head(&context->fbo_list, &entry->entry);
382 return entry;
383 }
384 }
385
386 if (context->fbo_entry_count < WINED3D_MAX_FBO_ENTRIES)
387 {
388 entry = context_create_fbo_entry(context, render_targets, depth_stencil);
389 list_add_head(&context->fbo_list, &entry->entry);
390 ++context->fbo_entry_count;
391 }
392 else
393 {
394 entry = LIST_ENTRY(list_tail(&context->fbo_list), struct fbo_entry, entry);
395 context_reuse_fbo_entry(context, target, render_targets, depth_stencil, entry);
396 list_remove(&entry->entry);
397 list_add_head(&context->fbo_list, &entry->entry);
398 }
399
400 return entry;
401 }
402
403 /* GL locking is done by the caller */
404 static void context_apply_fbo_entry(struct wined3d_context *context, GLenum target, struct fbo_entry *entry)
405 {
406 const struct wined3d_gl_info *gl_info = context->gl_info;
407 unsigned int i;
408
409 context_bind_fbo(context, target, &entry->id);
410
411 if (!entry->attached)
412 {
413 /* Apply render targets */
414 for (i = 0; i < gl_info->limits.buffers; ++i)
415 {
416 context_attach_surface_fbo(context, target, i, entry->render_targets[i]);
417 }
418
419 /* Apply depth targets */
420 if (entry->depth_stencil)
421 {
422 surface_set_compatible_renderbuffer(entry->depth_stencil,
423 entry->render_targets[0]->pow2Width, entry->render_targets[0]->pow2Height);
424 }
425 context_attach_depth_stencil_fbo(context, target, entry->depth_stencil, TRUE);
426
427 entry->attached = TRUE;
428 }
429 else
430 {
431 for (i = 0; i < gl_info->limits.buffers; ++i)
432 {
433 if (entry->render_targets[i])
434 context_apply_attachment_filter_states(entry->render_targets[i]);
435 }
436 if (entry->depth_stencil)
437 context_apply_attachment_filter_states(entry->depth_stencil);
438 }
439 }
440
441 /* GL locking is done by the caller */
442 static void context_apply_fbo_state(struct wined3d_context *context, GLenum target,
443 IWineD3DSurfaceImpl **render_targets, IWineD3DSurfaceImpl *depth_stencil)
444 {
445 struct fbo_entry *entry, *entry2;
446
447 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
448 {
449 context_destroy_fbo_entry(context, entry);
450 }
451
452 if (context->rebind_fbo)
453 {
454 context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
455 context->rebind_fbo = FALSE;
456 }
457
458 if (render_targets)
459 {
460 context->current_fbo = context_find_fbo_entry(context, target, render_targets, depth_stencil);
461 context_apply_fbo_entry(context, target, context->current_fbo);
462 }
463 else
464 {
465 context->current_fbo = NULL;
466 context_bind_fbo(context, target, NULL);
467 }
468
469 context_check_fbo_status(context, target);
470 }
471
472 /* GL locking is done by the caller */
473 void context_apply_fbo_state_blit(struct wined3d_context *context, GLenum target,
474 IWineD3DSurfaceImpl *render_target, IWineD3DSurfaceImpl *depth_stencil)
475 {
476 if (surface_is_offscreen(render_target))
477 {
478 context->blit_targets[0] = render_target;
479 context_apply_fbo_state(context, target, context->blit_targets, depth_stencil);
480 }
481 else
482 {
483 context_apply_fbo_state(context, target, NULL, NULL);
484 }
485 }
486
487 /* Context activation is done by the caller. */
488 void context_alloc_occlusion_query(struct wined3d_context *context, struct wined3d_occlusion_query *query)
489 {
490 const struct wined3d_gl_info *gl_info = context->gl_info;
491
492 if (context->free_occlusion_query_count)
493 {
494 query->id = context->free_occlusion_queries[--context->free_occlusion_query_count];
495 }
496 else
497 {
498 if (gl_info->supported[ARB_OCCLUSION_QUERY])
499 {
500 ENTER_GL();
501 GL_EXTCALL(glGenQueriesARB(1, &query->id));
502 checkGLcall("glGenQueriesARB");
503 LEAVE_GL();
504
505 TRACE("Allocated occlusion query %u in context %p.\n", query->id, context);
506 }
507 else
508 {
509 WARN("Occlusion queries not supported, not allocating query id.\n");
510 query->id = 0;
511 }
512 }
513
514 query->context = context;
515 list_add_head(&context->occlusion_queries, &query->entry);
516 }
517
518 void context_free_occlusion_query(struct wined3d_occlusion_query *query)
519 {
520 struct wined3d_context *context = query->context;
521
522 list_remove(&query->entry);
523 query->context = NULL;
524
525 if (context->free_occlusion_query_count >= context->free_occlusion_query_size - 1)
526 {
527 UINT new_size = context->free_occlusion_query_size << 1;
528 GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_occlusion_queries,
529 new_size * sizeof(*context->free_occlusion_queries));
530
531 if (!new_data)
532 {
533 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
534 return;
535 }
536
537 context->free_occlusion_query_size = new_size;
538 context->free_occlusion_queries = new_data;
539 }
540
541 context->free_occlusion_queries[context->free_occlusion_query_count++] = query->id;
542 }
543
544 /* Context activation is done by the caller. */
545 void context_alloc_event_query(struct wined3d_context *context, struct wined3d_event_query *query)
546 {
547 const struct wined3d_gl_info *gl_info = context->gl_info;
548
549 if (context->free_event_query_count)
550 {
551 query->object = context->free_event_queries[--context->free_event_query_count];
552 }
553 else
554 {
555 if (gl_info->supported[ARB_SYNC])
556 {
557 /* Using ARB_sync, not much to do here. */
558 query->object.sync = NULL;
559 TRACE("Allocated event query %p in context %p.\n", query->object.sync, context);
560 }
561 else if (gl_info->supported[APPLE_FENCE])
562 {
563 ENTER_GL();
564 GL_EXTCALL(glGenFencesAPPLE(1, &query->object.id));
565 checkGLcall("glGenFencesAPPLE");
566 LEAVE_GL();
567
568 TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
569 }
570 else if(gl_info->supported[NV_FENCE])
571 {
572 ENTER_GL();
573 GL_EXTCALL(glGenFencesNV(1, &query->object.id));
574 checkGLcall("glGenFencesNV");
575 LEAVE_GL();
576
577 TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
578 }
579 else
580 {
581 WARN("Event queries not supported, not allocating query id.\n");
582 query->object.id = 0;
583 }
584 }
585
586 query->context = context;
587 list_add_head(&context->event_queries, &query->entry);
588 }
589
590 void context_free_event_query(struct wined3d_event_query *query)
591 {
592 struct wined3d_context *context = query->context;
593
594 list_remove(&query->entry);
595 query->context = NULL;
596
597 if (context->free_event_query_count >= context->free_event_query_size - 1)
598 {
599 UINT new_size = context->free_event_query_size << 1;
600 union wined3d_gl_query_object *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_event_queries,
601 new_size * sizeof(*context->free_event_queries));
602
603 if (!new_data)
604 {
605 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->object.id, context);
606 return;
607 }
608
609 context->free_event_query_size = new_size;
610 context->free_event_queries = new_data;
611 }
612
613 context->free_event_queries[context->free_event_query_count++] = query->object;
614 }
615
616 void context_resource_released(IWineD3DDevice *iface, IWineD3DResource *resource, WINED3DRESOURCETYPE type)
617 {
618 IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
619 UINT i;
620
621 if (!This->d3d_initialized) return;
622
623 switch(type)
624 {
625 case WINED3DRTYPE_SURFACE:
626 {
627 for (i = 0; i < This->numContexts; ++i)
628 {
629 struct wined3d_context *context = This->contexts[i];
630 const struct wined3d_gl_info *gl_info = context->gl_info;
631 struct fbo_entry *entry, *entry2;
632
633 if (context->current_rt == (IWineD3DSurfaceImpl *)resource) context->current_rt = NULL;
634
635 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
636 {
637 UINT j;
638
639 if (entry->depth_stencil == (IWineD3DSurfaceImpl *)resource)
640 {
641 list_remove(&entry->entry);
642 list_add_head(&context->fbo_destroy_list, &entry->entry);
643 continue;
644 }
645
646 for (j = 0; j < gl_info->limits.buffers; ++j)
647 {
648 if (entry->render_targets[j] == (IWineD3DSurfaceImpl *)resource)
649 {
650 list_remove(&entry->entry);
651 list_add_head(&context->fbo_destroy_list, &entry->entry);
652 break;
653 }
654 }
655 }
656 }
657
658 break;
659 }
660
661 default:
662 break;
663 }
664 }
665
666 void context_surface_update(struct wined3d_context *context, IWineD3DSurfaceImpl *surface)
667 {
668 const struct wined3d_gl_info *gl_info = context->gl_info;
669 struct fbo_entry *entry = context->current_fbo;
670 unsigned int i;
671
672 if (!entry || context->rebind_fbo) return;
673
674 for (i = 0; i < gl_info->limits.buffers; ++i)
675 {
676 if (surface == entry->render_targets[i])
677 {
678 TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface, i);
679 context->rebind_fbo = TRUE;
680 return;
681 }
682 }
683
684 if (surface == entry->depth_stencil)
685 {
686 TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface);
687 context->rebind_fbo = TRUE;
688 }
689 }
690
691 static BOOL context_set_pixel_format(const struct wined3d_gl_info *gl_info, HDC dc, int format)
692 {
693 int current = GetPixelFormat(dc);
694
695 if (current == format) return TRUE;
696
697 if (!current)
698 {
699 if (!SetPixelFormat(dc, format, NULL))
700 {
701 ERR("Failed to set pixel format %d on device context %p, last error %#x.\n",
702 format, dc, GetLastError());
703 return FALSE;
704 }
705 return TRUE;
706 }
707
708 /* By default WGL doesn't allow pixel format adjustments but we need it
709 * here. For this reason there's a Wine specific wglSetPixelFormat()
710 * which allows us to set the pixel format multiple times. Only use it
711 * when really needed. */
712 if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
713 {
714 if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format, NULL)))
715 {
716 ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
717 format, dc);
718 return FALSE;
719 }
720 return TRUE;
721 }
722
723 /* OpenGL doesn't allow pixel format adjustments. Print an error and
724 * continue using the old format. There's a big chance that the old
725 * format works although with a performance hit and perhaps rendering
726 * errors. */
727 ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
728 format, dc, current);
729 return TRUE;
730 }
731
732 static void context_update_window(struct wined3d_context *context)
733 {
734 TRACE("Updating context %p window from %p to %p.\n",
735 context, context->win_handle, context->swapchain->win_handle);
736
737 if (context->valid)
738 {
739 if (!ReleaseDC(context->win_handle, context->hdc))
740 {
741 ERR("Failed to release device context %p, last error %#x.\n",
742 context->hdc, GetLastError());
743 }
744 }
745 else context->valid = 1;
746
747 context->win_handle = context->swapchain->win_handle;
748
749 if (!(context->hdc = GetDC(context->win_handle)))
750 {
751 ERR("Failed to get a device context for window %p.\n", context->win_handle);
752 goto err;
753 }
754
755 if (!context_set_pixel_format(context->gl_info, context->hdc, context->pixel_format))
756 {
757 ERR("Failed to set pixel format %d on device context %p.\n",
758 context->pixel_format, context->hdc);
759 goto err;
760 }
761
762 if (!pwglMakeCurrent(context->hdc, context->glCtx))
763 {
764 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
765 context->glCtx, context->hdc, GetLastError());
766 goto err;
767 }
768
769 return;
770
771 err:
772 context->valid = 0;
773 }
774
775 static void context_validate(struct wined3d_context *context)
776 {
777 HWND wnd = WindowFromDC(context->hdc);
778
779 if (wnd != context->win_handle)
780 {
781 WARN("DC %p belongs to window %p instead of %p.\n",
782 context->hdc, wnd, context->win_handle);
783 context->valid = 0;
784 }
785
786 if (context->win_handle != context->swapchain->win_handle)
787 context_update_window(context);
788 }
789
790 static void context_destroy_gl_resources(struct wined3d_context *context)
791 {
792 const struct wined3d_gl_info *gl_info = context->gl_info;
793 struct wined3d_occlusion_query *occlusion_query;
794 struct wined3d_event_query *event_query;
795 struct fbo_entry *entry, *entry2;
796 HGLRC restore_ctx;
797 HDC restore_dc;
798 unsigned int i;
799
800 restore_ctx = pwglGetCurrentContext();
801 restore_dc = pwglGetCurrentDC();
802
803 context_validate(context);
804 if (context->valid && restore_ctx != context->glCtx) pwglMakeCurrent(context->hdc, context->glCtx);
805 else restore_ctx = NULL;
806
807 ENTER_GL();
808
809 LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry)
810 {
811 if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY])
812 GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query->id));
813 occlusion_query->context = NULL;
814 }
815
816 LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry)
817 {
818 if (context->valid)
819 {
820 if (gl_info->supported[ARB_SYNC])
821 {
822 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
823 }
824 else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id));
825 else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id));
826 }
827 event_query->context = NULL;
828 }
829
830 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
831 {
832 if (!context->valid) entry->id = 0;
833 context_destroy_fbo_entry(context, entry);
834 }
835
836 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
837 {
838 if (!context->valid) entry->id = 0;
839 context_destroy_fbo_entry(context, entry);
840 }
841
842 if (context->valid)
843 {
844 if (context->src_fbo)
845 {
846 TRACE("Destroy src FBO %d\n", context->src_fbo);
847 context_destroy_fbo(context, &context->src_fbo);
848 }
849 if (context->dst_fbo)
850 {
851 TRACE("Destroy dst FBO %d\n", context->dst_fbo);
852 context_destroy_fbo(context, &context->dst_fbo);
853 }
854 if (context->dummy_arbfp_prog)
855 {
856 GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog));
857 }
858
859 if (gl_info->supported[ARB_OCCLUSION_QUERY])
860 GL_EXTCALL(glDeleteQueriesARB(context->free_occlusion_query_count, context->free_occlusion_queries));
861
862 if (gl_info->supported[ARB_SYNC])
863 {
864 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
865 }
866 else if (gl_info->supported[APPLE_FENCE])
867 {
868 for (i = 0; i < context->free_event_query_count; ++i)
869 {
870 GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id));
871 }
872 }
873 else if (gl_info->supported[NV_FENCE])
874 {
875 for (i = 0; i < context->free_event_query_count; ++i)
876 {
877 GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id));
878 }
879 }
880
881 checkGLcall("context cleanup");
882 }
883
884 LEAVE_GL();
885
886 HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries);
887 HeapFree(GetProcessHeap(), 0, context->free_event_queries);
888
889 if (restore_ctx)
890 {
891 if (!pwglMakeCurrent(restore_dc, restore_ctx))
892 {
893 DWORD err = GetLastError();
894 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
895 restore_ctx, restore_dc, err);
896 }
897 }
898 else if (pwglGetCurrentContext() && !pwglMakeCurrent(NULL, NULL))
899 {
900 ERR("Failed to disable GL context.\n");
901 }
902
903 ReleaseDC(context->win_handle, context->hdc);
904
905 if (!pwglDeleteContext(context->glCtx))
906 {
907 DWORD err = GetLastError();
908 ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err);
909 }
910 }
911
912 DWORD context_get_tls_idx(void)
913 {
914 return wined3d_context_tls_idx;
915 }
916
917 void context_set_tls_idx(DWORD idx)
918 {
919 wined3d_context_tls_idx = idx;
920 }
921
922 struct wined3d_context *context_get_current(void)
923 {
924 return TlsGetValue(wined3d_context_tls_idx);
925 }
926
927 BOOL context_set_current(struct wined3d_context *ctx)
928 {
929 struct wined3d_context *old = context_get_current();
930
931 if (old == ctx)
932 {
933 TRACE("Already using D3D context %p.\n", ctx);
934 return TRUE;
935 }
936
937 if (old)
938 {
939 if (old->destroyed)
940 {
941 TRACE("Switching away from destroyed context %p.\n", old);
942 context_destroy_gl_resources(old);
943 HeapFree(GetProcessHeap(), 0, old);
944 }
945 else
946 {
947 old->current = 0;
948 }
949 }
950
951 if (ctx)
952 {
953 TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc);
954 if (!pwglMakeCurrent(ctx->hdc, ctx->glCtx))
955 {
956 DWORD err = GetLastError();
957 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
958 ctx->glCtx, ctx->hdc, err);
959 TlsSetValue(wined3d_context_tls_idx, NULL);
960 return FALSE;
961 }
962 ctx->current = 1;
963 }
964 else if(pwglGetCurrentContext())
965 {
966 TRACE("Clearing current D3D context.\n");
967 if (!pwglMakeCurrent(NULL, NULL))
968 {
969 DWORD err = GetLastError();
970 ERR("Failed to clear current GL context, last error %#x.\n", err);
971 TlsSetValue(wined3d_context_tls_idx, NULL);
972 return FALSE;
973 }
974 }
975
976 return TlsSetValue(wined3d_context_tls_idx, ctx);
977 }
978
979 void context_release(struct wined3d_context *context)
980 {
981 TRACE("Releasing context %p, level %u.\n", context, context->level);
982
983 if (WARN_ON(d3d))
984 {
985 if (!context->level)
986 WARN("Context %p is not active.\n", context);
987 else if (context != context_get_current())
988 WARN("Context %p is not the current context.\n", context);
989 }
990
991 if (!--context->level && context->restore_ctx)
992 {
993 TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc);
994 if (!pwglMakeCurrent(context->restore_dc, context->restore_ctx))
995 {
996 DWORD err = GetLastError();
997 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
998 context->restore_ctx, context->restore_dc, err);
999 }
1000 context->restore_ctx = NULL;
1001 context->restore_dc = NULL;
1002 }
1003 }
1004
1005 static void context_enter(struct wined3d_context *context)
1006 {
1007 TRACE("Entering context %p, level %u.\n", context, context->level + 1);
1008
1009 if (!context->level++)
1010 {
1011 const struct wined3d_context *current_context = context_get_current();
1012 HGLRC current_gl = pwglGetCurrentContext();
1013
1014 if (current_gl && (!current_context || current_context->glCtx != current_gl))
1015 {
1016 TRACE("Another GL context (%p on device context %p) is already current.\n",
1017 current_gl, pwglGetCurrentDC());
1018 context->restore_ctx = current_gl;
1019 context->restore_dc = pwglGetCurrentDC();
1020 }
1021 }
1022 }
1023
1024 /*****************************************************************************
1025 * Context_MarkStateDirty
1026 *
1027 * Marks a state in a context dirty. Only one context, opposed to
1028 * IWineD3DDeviceImpl_MarkStateDirty, which marks the state dirty in all
1029 * contexts
1030 *
1031 * Params:
1032 * context: Context to mark the state dirty in
1033 * state: State to mark dirty
1034 * StateTable: Pointer to the state table in use(for state grouping)
1035 *
1036 *****************************************************************************/
1037 static void Context_MarkStateDirty(struct wined3d_context *context, DWORD state, const struct StateEntry *StateTable)
1038 {
1039 DWORD rep = StateTable[state].representative;
1040 DWORD idx;
1041 BYTE shift;
1042
1043 if (isStateDirty(context, rep)) return;
1044
1045 context->dirtyArray[context->numDirtyEntries++] = rep;
1046 idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
1047 shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
1048 context->isStateDirty[idx] |= (1 << shift);
1049 }
1050
1051 /* This function takes care of WineD3D pixel format selection. */
1052 static int WineD3D_ChoosePixelFormat(IWineD3DDeviceImpl *This, HDC hdc,
1053 const struct wined3d_format_desc *color_format_desc, const struct wined3d_format_desc *ds_format_desc,
1054 BOOL auxBuffers, int numSamples, BOOL findCompatible)
1055 {
1056 int iPixelFormat=0;
1057 unsigned int matchtry;
1058 short redBits, greenBits, blueBits, alphaBits, colorBits;
1059 short depthBits=0, stencilBits=0;
1060
1061 struct match_type {
1062 BOOL require_aux;
1063 BOOL exact_alpha;
1064 BOOL exact_color;
1065 } matches[] = {
1066 /* First, try without alpha match buffers. MacOS supports aux buffers only
1067 * on A8R8G8B8, and we prefer better offscreen rendering over an alpha match.
1068 * Then try without aux buffers - this is the most common cause for not
1069 * finding a pixel format. Also some drivers(the open source ones)
1070 * only offer 32 bit ARB pixel formats. First try without an exact alpha
1071 * match, then try without an exact alpha and color match.
1072 */
1073 { TRUE, TRUE, TRUE },
1074 { TRUE, FALSE, TRUE },
1075 { FALSE, TRUE, TRUE },
1076 { FALSE, FALSE, TRUE },
1077 { TRUE, FALSE, FALSE },
1078 { FALSE, FALSE, FALSE },
1079 };
1080
1081 int i = 0;
1082 int nCfgs = This->adapter->nCfgs;
1083
1084 TRACE("ColorFormat=%s, DepthStencilFormat=%s, auxBuffers=%d, numSamples=%d, findCompatible=%d\n",
1085 debug_d3dformat(color_format_desc->format), debug_d3dformat(ds_format_desc->format),
1086 auxBuffers, numSamples, findCompatible);
1087
1088 if (!getColorBits(color_format_desc, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits))
1089 {
1090 ERR("Unable to get color bits for format %s (%#x)!\n",
1091 debug_d3dformat(color_format_desc->format), color_format_desc->format);
1092 return 0;
1093 }
1094
1095 getDepthStencilBits(ds_format_desc, &depthBits, &stencilBits);
1096
1097 for(matchtry = 0; matchtry < (sizeof(matches) / sizeof(matches[0])) && !iPixelFormat; matchtry++) {
1098 for(i=0; i<nCfgs; i++) {
1099 BOOL exactDepthMatch = TRUE;
1100 WineD3D_PixelFormat *cfg = &This->adapter->cfgs[i];
1101
1102 /* For now only accept RGBA formats. Perhaps some day we will
1103 * allow floating point formats for pbuffers. */
1104 if(cfg->iPixelType != WGL_TYPE_RGBA_ARB)
1105 continue;
1106
1107 /* In window mode we need a window drawable format and double buffering. */
1108 if(!(cfg->windowDrawable && cfg->doubleBuffer))
1109 continue;
1110
1111 /* We like to have aux buffers in backbuffer mode */
1112 if(auxBuffers && !cfg->auxBuffers && matches[matchtry].require_aux)
1113 continue;
1114
1115 if(matches[matchtry].exact_color) {
1116 if(cfg->redSize != redBits)
1117 continue;
1118 if(cfg->greenSize != greenBits)
1119 continue;
1120 if(cfg->blueSize != blueBits)
1121 continue;
1122 } else {
1123 if(cfg->redSize < redBits)
1124 continue;
1125 if(cfg->greenSize < greenBits)
1126 continue;
1127 if(cfg->blueSize < blueBits)
1128 continue;
1129 }
1130 if(matches[matchtry].exact_alpha) {
1131 if(cfg->alphaSize != alphaBits)
1132 continue;
1133 } else {
1134 if(cfg->alphaSize < alphaBits)
1135 continue;
1136 }
1137
1138 /* We try to locate a format which matches our requirements exactly. In case of
1139 * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1140 if(cfg->depthSize < depthBits)
1141 continue;
1142 else if(cfg->depthSize > depthBits)
1143 exactDepthMatch = FALSE;
1144
1145 /* In all cases make sure the number of stencil bits matches our requirements
1146 * even when we don't need stencil because it could affect performance EXCEPT
1147 * on cards which don't offer depth formats without stencil like the i915 drivers
1148 * on Linux. */
1149 if(stencilBits != cfg->stencilSize && !(This->adapter->brokenStencil && stencilBits <= cfg->stencilSize))
1150 continue;
1151
1152 /* Check multisampling support */
1153 if(cfg->numSamples != numSamples)
1154 continue;
1155
1156 /* When we have passed all the checks then we have found a format which matches our
1157 * requirements. Note that we only check for a limit number of capabilities right now,
1158 * so there can easily be a dozen of pixel formats which appear to be the 'same' but
1159 * can still differ in things like multisampling, stereo, SRGB and other flags.
1160 */
1161
1162 /* Exit the loop as we have found a format :) */
1163 if(exactDepthMatch) {
1164 iPixelFormat = cfg->iPixelFormat;
1165 break;
1166 } else if(!iPixelFormat) {
1167 /* In the end we might end up with a format which doesn't exactly match our depth
1168 * requirements. Accept the first format we found because formats with higher iPixelFormat
1169 * values tend to have more extended capabilities (e.g. multisampling) which we don't need. */
1170 iPixelFormat = cfg->iPixelFormat;
1171 }
1172 }
1173 }
1174
1175 /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1176 if(!iPixelFormat && !findCompatible) {
1177 ERR("Can't find a suitable iPixelFormat\n");
1178 return FALSE;
1179 } else if(!iPixelFormat) {
1180 PIXELFORMATDESCRIPTOR pfd;
1181
1182 TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1183 /* PixelFormat selection */
1184 ZeroMemory(&pfd, sizeof(pfd));
1185 pfd.nSize = sizeof(pfd);
1186 pfd.nVersion = 1;
1187 pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
1188 pfd.iPixelType = PFD_TYPE_RGBA;
1189 pfd.cAlphaBits = alphaBits;
1190 pfd.cColorBits = colorBits;
1191 pfd.cDepthBits = depthBits;
1192 pfd.cStencilBits = stencilBits;
1193 pfd.iLayerType = PFD_MAIN_PLANE;
1194
1195 iPixelFormat = ChoosePixelFormat(hdc, &pfd);
1196 if(!iPixelFormat) {
1197 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
1198 ERR("Can't find a suitable iPixelFormat\n");
1199 return FALSE;
1200 }
1201 }
1202
1203 TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1204 iPixelFormat, debug_d3dformat(color_format_desc->format), debug_d3dformat(ds_format_desc->format));
1205 return iPixelFormat;
1206 }
1207
1208 /*****************************************************************************
1209 * context_create
1210 *
1211 * Creates a new context.
1212 *
1213 * * Params:
1214 * This: Device to activate the context for
1215 * target: Surface this context will render to
1216 * win_handle: handle to the window which we are drawing to
1217 * pPresentParameters: contains the pixelformats to use for onscreen rendering
1218 *
1219 *****************************************************************************/
1220 struct wined3d_context *context_create(IWineD3DSwapChainImpl *swapchain, IWineD3DSurfaceImpl *target,
1221 const struct wined3d_format_desc *ds_format_desc)
1222 {
1223 IWineD3DDeviceImpl *device = swapchain->device;
1224 const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1225 const struct wined3d_format_desc *color_format_desc;
1226 struct wined3d_context *ret;
1227 PIXELFORMATDESCRIPTOR pfd;
1228 BOOL auxBuffers = FALSE;
1229 int numSamples = 0;
1230 int pixel_format;
1231 unsigned int s;
1232 DWORD state;
1233 HGLRC ctx;
1234 HDC hdc;
1235
1236 TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle);
1237
1238 ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
1239 if (!ret)
1240 {
1241 ERR("Failed to allocate context memory.\n");
1242 return NULL;
1243 }
1244
1245 if (!(hdc = GetDC(swapchain->win_handle)))
1246 {
1247 ERR("Failed to retrieve a device context.\n");
1248 goto out;
1249 }
1250
1251 color_format_desc = target->resource.format_desc;
1252
1253 /* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1254 * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1255 if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER)
1256 {
1257 auxBuffers = TRUE;
1258
1259 if (color_format_desc->format == WINED3DFMT_B4G4R4X4_UNORM)
1260 color_format_desc = getFormatDescEntry(WINED3DFMT_B4G4R4A4_UNORM, gl_info);
1261 else if (color_format_desc->format == WINED3DFMT_B8G8R8X8_UNORM)
1262 color_format_desc = getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM, gl_info);
1263 }
1264
1265 /* DirectDraw supports 8bit paletted render targets and these are used by
1266 * old games like Starcraft and C&C. Most modern hardware doesn't support
1267 * 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1268 * conversion (ab)uses the alpha component for storing the palette index.
1269 * For this reason we require a format with 8bit alpha, so request
1270 * A8R8G8B8. */
1271 if (color_format_desc->format == WINED3DFMT_P8_UINT)
1272 color_format_desc = getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM, gl_info);
1273
1274 /* D3D only allows multisampling when SwapEffect is set to WINED3DSWAPEFFECT_DISCARD. */
1275 if (swapchain->presentParms.MultiSampleType && (swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD))
1276 {
1277 if (!gl_info->supported[ARB_MULTISAMPLE])
1278 WARN("The application is requesting multisampling without support.\n");
1279 else
1280 {
1281 TRACE("Requesting multisample type %#x.\n", swapchain->presentParms.MultiSampleType);
1282 numSamples = swapchain->presentParms.MultiSampleType;
1283 }
1284 }
1285
1286 /* Try to find a pixel format which matches our requirements. */
1287 pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format_desc, ds_format_desc,
1288 auxBuffers, numSamples, FALSE /* findCompatible */);
1289
1290 /* Try to locate a compatible format if we weren't able to find anything. */
1291 if (!pixel_format)
1292 {
1293 TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1294 pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format_desc, ds_format_desc,
1295 auxBuffers, 0 /* numSamples */, TRUE /* findCompatible */);
1296 }
1297
1298 /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1299 if (!pixel_format)
1300 {
1301 ERR("Can't find a suitable pixel format.\n");
1302 goto out;
1303 }
1304
1305 DescribePixelFormat(hdc, pixel_format, sizeof(pfd), &pfd);
1306 if (!context_set_pixel_format(gl_info, hdc, pixel_format))
1307 {
1308 ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc);
1309 goto out;
1310 }
1311
1312 ctx = pwglCreateContext(hdc);
1313 if (device->numContexts)
1314 {
1315 if (!pwglShareLists(device->contexts[0]->glCtx, ctx))
1316 {
1317 DWORD err = GetLastError();
1318 ERR("wglShareLists(%p, %p) failed, last error %#x.\n",
1319 device->contexts[0]->glCtx, ctx, err);
1320 }
1321 }
1322
1323 if(!ctx) {
1324 ERR("Failed to create a WGL context\n");
1325 goto out;
1326 }
1327
1328 if (!device_context_add(device, ret))
1329 {
1330 ERR("Failed to add the newly created context to the context list\n");
1331 if (!pwglDeleteContext(ctx))
1332 {
1333 DWORD err = GetLastError();
1334 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, err);
1335 }
1336 goto out;
1337 }
1338
1339 ret->gl_info = gl_info;
1340
1341 /* Mark all states dirty to force a proper initialization of the states
1342 * on the first use of the context. */
1343 for (state = 0; state <= STATE_HIGHEST; ++state)
1344 {
1345 if (device->StateTable[state].representative)
1346 Context_MarkStateDirty(ret, state, device->StateTable);
1347 }
1348
1349 ret->swapchain = swapchain;
1350 ret->current_rt = target;
1351 ret->tid = GetCurrentThreadId();
1352
1353 ret->render_offscreen = surface_is_offscreen(target);
1354 ret->draw_buffer_dirty = TRUE;
1355 ret->valid = 1;
1356
1357 ret->glCtx = ctx;
1358 ret->win_handle = swapchain->win_handle;
1359 ret->hdc = hdc;
1360 ret->pixel_format = pixel_format;
1361
1362 if (device->shader_backend->shader_dirtifyable_constants((IWineD3DDevice *)device))
1363 {
1364 /* Create the dirty constants array and initialize them to dirty */
1365 ret->vshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
1366 sizeof(*ret->vshader_const_dirty) * device->d3d_vshader_constantF);
1367 ret->pshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
1368 sizeof(*ret->pshader_const_dirty) * device->d3d_pshader_constantF);
1369 memset(ret->vshader_const_dirty, 1,
1370 sizeof(*ret->vshader_const_dirty) * device->d3d_vshader_constantF);
1371 memset(ret->pshader_const_dirty, 1,
1372 sizeof(*ret->pshader_const_dirty) * device->d3d_pshader_constantF);
1373 }
1374
1375 ret->blit_targets = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1376 gl_info->limits.buffers * sizeof(*ret->blit_targets));
1377 if (!ret->blit_targets) goto out;
1378
1379 ret->free_occlusion_query_size = 4;
1380 ret->free_occlusion_queries = HeapAlloc(GetProcessHeap(), 0,
1381 ret->free_occlusion_query_size * sizeof(*ret->free_occlusion_queries));
1382 if (!ret->free_occlusion_queries) goto out;
1383
1384 list_init(&ret->occlusion_queries);
1385
1386 ret->free_event_query_size = 4;
1387 ret->free_event_queries = HeapAlloc(GetProcessHeap(), 0,
1388 ret->free_event_query_size * sizeof(*ret->free_event_queries));
1389 if (!ret->free_event_queries) goto out;
1390
1391 list_init(&ret->event_queries);
1392
1393 TRACE("Successfully created new context %p\n", ret);
1394
1395 list_init(&ret->fbo_list);
1396 list_init(&ret->fbo_destroy_list);
1397
1398 context_enter(ret);
1399
1400 /* Set up the context defaults */
1401 if (!context_set_current(ret))
1402 {
1403 ERR("Cannot activate context to set up defaults\n");
1404 context_release(ret);
1405 goto out;
1406 }
1407
1408 ENTER_GL();
1409
1410 glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers);
1411
1412 TRACE("Setting up the screen\n");
1413 /* Clear the screen */
1414 glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
1415 checkGLcall("glClearColor");
1416 glClearIndex(0);
1417 glClearDepth(1);
1418 glClearStencil(0xffff);
1419
1420 checkGLcall("glClear");
1421
1422 glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
1423 checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1424
1425 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
1426 checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1427
1428 glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1429 checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1430
1431 glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);
1432 checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1433 glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);
1434 checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);");
1435
1436 if (gl_info->supported[APPLE_CLIENT_STORAGE])
1437 {
1438 /* Most textures will use client storage if supported. Exceptions are non-native power of 2 textures
1439 * and textures in DIB sections(due to the memory protection).
1440 */
1441 glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
1442 checkGLcall("glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE)");
1443 }
1444 if (gl_info->supported[ARB_VERTEX_BLEND])
1445 {
1446 /* Direct3D always uses n-1 weights for n world matrices and uses 1 - sum for the last one
1447 * this is equal to GL_WEIGHT_SUM_UNITY_ARB. Enabling it doesn't do anything unless
1448 * GL_VERTEX_BLEND_ARB isn't enabled too
1449 */
1450 glEnable(GL_WEIGHT_SUM_UNITY_ARB);
1451 checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1452 }
1453 if (gl_info->supported[NV_TEXTURE_SHADER2])
1454 {
1455 /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1456 * the previous texture where to source the offset from is always unit - 1.
1457 */
1458 for (s = 1; s < gl_info->limits.textures; ++s)
1459 {
1460 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
1461 glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
1462 checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1463 }
1464 }
1465 if (gl_info->supported[ARB_FRAGMENT_PROGRAM])
1466 {
1467 /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1468 * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1469 * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1470 * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1471 * is ever assigned.
1472 *
1473 * So make sure a program is assigned to each context. The first real ARBFP use will set a different
1474 * program and the dummy program is destroyed when the context is destroyed.
1475 */
1476 const char *dummy_program =
1477 "!!ARBfp1.0\n"
1478 "MOV result.color, fragment.color.primary;\n"
1479 "END\n";
1480 GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog));
1481 GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog));
1482 GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program));
1483 }
1484
1485 for (s = 0; s < gl_info->limits.point_sprite_units; ++s)
1486 {
1487 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
1488 glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
1489 checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1490 }
1491
1492 if (gl_info->supported[ARB_PROVOKING_VERTEX])
1493 {
1494 GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION));
1495 }
1496 else if (gl_info->supported[EXT_PROVOKING_VERTEX])
1497 {
1498 GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT));
1499 }
1500
1501 LEAVE_GL();
1502
1503 device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
1504
1505 TRACE("Created context %p.\n", ret);
1506
1507 return ret;
1508
1509 out:
1510 HeapFree(GetProcessHeap(), 0, ret->free_event_queries);
1511 HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries);
1512 HeapFree(GetProcessHeap(), 0, ret->blit_targets);
1513 HeapFree(GetProcessHeap(), 0, ret->pshader_const_dirty);
1514 HeapFree(GetProcessHeap(), 0, ret->vshader_const_dirty);
1515 HeapFree(GetProcessHeap(), 0, ret);
1516 return NULL;
1517 }
1518
1519 /*****************************************************************************
1520 * context_destroy
1521 *
1522 * Destroys a wined3d context
1523 *
1524 * Params:
1525 * This: Device to activate the context for
1526 * context: Context to destroy
1527 *
1528 *****************************************************************************/
1529 void context_destroy(IWineD3DDeviceImpl *This, struct wined3d_context *context)
1530 {
1531 BOOL destroy;
1532
1533 TRACE("Destroying ctx %p\n", context);
1534
1535 if (context->tid == GetCurrentThreadId() || !context->current)
1536 {
1537 context_destroy_gl_resources(context);
1538 TlsSetValue(wined3d_context_tls_idx, NULL);
1539 destroy = TRUE;
1540 }
1541 else
1542 {
1543 context->destroyed = 1;
1544 destroy = FALSE;
1545 }
1546
1547 HeapFree(GetProcessHeap(), 0, context->blit_targets);
1548 HeapFree(GetProcessHeap(), 0, context->vshader_const_dirty);
1549 HeapFree(GetProcessHeap(), 0, context->pshader_const_dirty);
1550 device_context_remove(This, context);
1551 if (destroy) HeapFree(GetProcessHeap(), 0, context);
1552 }
1553
1554 /* GL locking is done by the caller */
1555 static inline void set_blit_dimension(UINT width, UINT height) {
1556 glMatrixMode(GL_PROJECTION);
1557 checkGLcall("glMatrixMode(GL_PROJECTION)");
1558 glLoadIdentity();
1559 checkGLcall("glLoadIdentity()");
1560 glOrtho(0, width, height, 0, 0.0, -1.0);
1561 checkGLcall("glOrtho");
1562 glViewport(0, 0, width, height);
1563 checkGLcall("glViewport");
1564 }
1565
1566 /*****************************************************************************
1567 * SetupForBlit
1568 *
1569 * Sets up a context for DirectDraw blitting.
1570 * All texture units are disabled, texture unit 0 is set as current unit
1571 * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
1572 * color writing enabled for all channels
1573 * register combiners disabled, shaders disabled
1574 * world matrix is set to identity, texture matrix 0 too
1575 * projection matrix is setup for drawing screen coordinates
1576 *
1577 * Params:
1578 * This: Device to activate the context for
1579 * context: Context to setup
1580 *
1581 *****************************************************************************/
1582 /* Context activation is done by the caller. */
1583 static void SetupForBlit(IWineD3DDeviceImpl *This, struct wined3d_context *context)
1584 {
1585 int i;
1586 const struct StateEntry *StateTable = This->StateTable;
1587 const struct wined3d_gl_info *gl_info = context->gl_info;
1588 UINT width = context->current_rt->currentDesc.Width;
1589 UINT height = context->current_rt->currentDesc.Height;
1590 DWORD sampler;
1591
1592 TRACE("Setting up context %p for blitting\n", context);
1593 if(context->last_was_blit) {
1594 if(context->blit_w != width || context->blit_h != height) {
1595 ENTER_GL();
1596 set_blit_dimension(width, height);
1597 LEAVE_GL();
1598 context->blit_w = width; context->blit_h = height;
1599 /* No need to dirtify here, the states are still dirtified because they weren't
1600 * applied since the last SetupForBlit call. Otherwise last_was_blit would not
1601 * be set
1602 */
1603 }
1604 TRACE("Context is already set up for blitting, nothing to do\n");
1605 return;
1606 }
1607 context->last_was_blit = TRUE;
1608
1609 /* TODO: Use a display list */
1610
1611 /* Disable shaders */
1612 ENTER_GL();
1613 This->shader_backend->shader_select(context, FALSE, FALSE);
1614 LEAVE_GL();
1615
1616 Context_MarkStateDirty(context, STATE_VSHADER, StateTable);
1617 Context_MarkStateDirty(context, STATE_PIXELSHADER, StateTable);
1618
1619 /* Call ENTER_GL() once for all gl calls below. In theory we should not call
1620 * helper functions in between gl calls. This function is full of Context_MarkStateDirty
1621 * which can safely be called from here, we only lock once instead locking/unlocking
1622 * after each GL call.
1623 */
1624 ENTER_GL();
1625
1626 /* Disable all textures. The caller can then bind a texture it wants to blit
1627 * from
1628 *
1629 * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
1630 * function texture unit. No need to care for higher samplers
1631 */
1632 for (i = gl_info->limits.textures - 1; i > 0 ; --i)
1633 {
1634 sampler = This->rev_tex_unit_map[i];
1635 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i));
1636 checkGLcall("glActiveTextureARB");
1637
1638 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1639 {
1640 glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1641 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1642 }
1643 glDisable(GL_TEXTURE_3D);
1644 checkGLcall("glDisable GL_TEXTURE_3D");
1645 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1646 {
1647 glDisable(GL_TEXTURE_RECTANGLE_ARB);
1648 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1649 }
1650 glDisable(GL_TEXTURE_2D);
1651 checkGLcall("glDisable GL_TEXTURE_2D");
1652
1653 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1654 checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
1655
1656 if (sampler != WINED3D_UNMAPPED_STAGE)
1657 {
1658 if (sampler < MAX_TEXTURES) {
1659 Context_MarkStateDirty(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable);
1660 }
1661 Context_MarkStateDirty(context, STATE_SAMPLER(sampler), StateTable);
1662 }
1663 }
1664 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB));
1665 checkGLcall("glActiveTextureARB");
1666
1667 sampler = This->rev_tex_unit_map[0];
1668
1669 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1670 {
1671 glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1672 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1673 }
1674 glDisable(GL_TEXTURE_3D);
1675 checkGLcall("glDisable GL_TEXTURE_3D");
1676 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1677 {
1678 glDisable(GL_TEXTURE_RECTANGLE_ARB);
1679 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1680 }
1681 glDisable(GL_TEXTURE_2D);
1682 checkGLcall("glDisable GL_TEXTURE_2D");
1683
1684 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1685
1686 glMatrixMode(GL_TEXTURE);
1687 checkGLcall("glMatrixMode(GL_TEXTURE)");
1688 glLoadIdentity();
1689 checkGLcall("glLoadIdentity()");
1690
1691 if (gl_info->supported[EXT_TEXTURE_LOD_BIAS])
1692 {
1693 glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
1694 GL_TEXTURE_LOD_BIAS_EXT,
1695 0.0f);
1696 checkGLcall("glTexEnvi GL_TEXTURE_LOD_BIAS_EXT ...");
1697 }
1698
1699 if (sampler != WINED3D_UNMAPPED_STAGE)
1700 {
1701 if (sampler < MAX_TEXTURES) {
1702 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_TEXTURE0 + sampler), StateTable);
1703 Context_MarkStateDirty(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable);
1704 }
1705 Context_MarkStateDirty(context, STATE_SAMPLER(sampler), StateTable);
1706 }
1707
1708 /* Other misc states */
1709 glDisable(GL_ALPHA_TEST);
1710 checkGLcall("glDisable(GL_ALPHA_TEST)");
1711 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHATESTENABLE), StateTable);
1712 glDisable(GL_LIGHTING);
1713 checkGLcall("glDisable GL_LIGHTING");
1714 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_LIGHTING), StateTable);
1715 glDisable(GL_DEPTH_TEST);
1716 checkGLcall("glDisable GL_DEPTH_TEST");
1717 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ZENABLE), StateTable);
1718 glDisableWINE(GL_FOG);
1719 checkGLcall("glDisable GL_FOG");
1720 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_FOGENABLE), StateTable);
1721 glDisable(GL_BLEND);
1722 checkGLcall("glDisable GL_BLEND");
1723 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
1724 glDisable(GL_CULL_FACE);
1725 checkGLcall("glDisable GL_CULL_FACE");
1726 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CULLMODE), StateTable);
1727 glDisable(GL_STENCIL_TEST);
1728 checkGLcall("glDisable GL_STENCIL_TEST");
1729 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_STENCILENABLE), StateTable);
1730 glDisable(GL_SCISSOR_TEST);
1731 checkGLcall("glDisable GL_SCISSOR_TEST");
1732 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), StateTable);
1733 if (gl_info->supported[ARB_POINT_SPRITE])
1734 {
1735 glDisable(GL_POINT_SPRITE_ARB);
1736 checkGLcall("glDisable GL_POINT_SPRITE_ARB");
1737 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_POINTSPRITEENABLE), StateTable);
1738 }
1739 glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
1740 checkGLcall("glColorMask");
1741 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE), StateTable);
1742 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE1), StateTable);
1743 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE2), StateTable);
1744 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE3), StateTable);
1745 if (gl_info->supported[EXT_SECONDARY_COLOR])
1746 {
1747 glDisable(GL_COLOR_SUM_EXT);
1748 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SPECULARENABLE), StateTable);
1749 checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
1750 }
1751
1752 /* Setup transforms */
1753 glMatrixMode(GL_MODELVIEW);
1754 checkGLcall("glMatrixMode(GL_MODELVIEW)");
1755 glLoadIdentity();
1756 checkGLcall("glLoadIdentity()");
1757 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_WORLDMATRIX(0)), StateTable);
1758
1759 context->last_was_rhw = TRUE;
1760 Context_MarkStateDirty(context, STATE_VDECL, StateTable); /* because of last_was_rhw = TRUE */
1761
1762 glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
1763 glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
1764 glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
1765 glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
1766 glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
1767 glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
1768 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CLIPPING), StateTable);
1769
1770 set_blit_dimension(width, height);
1771
1772 LEAVE_GL();
1773
1774 context->blit_w = width; context->blit_h = height;
1775 Context_MarkStateDirty(context, STATE_VIEWPORT, StateTable);
1776 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);
1777
1778
1779 This->frag_pipe->enable_extension((IWineD3DDevice *) This, FALSE);
1780 }
1781
1782 /*****************************************************************************
1783 * findThreadContextForSwapChain
1784 *
1785 * Searches a swapchain for all contexts and picks one for the thread tid.
1786 * If none can be found the swapchain is requested to create a new context
1787 *
1788 *****************************************************************************/
1789 static struct wined3d_context *findThreadContextForSwapChain(IWineD3DSwapChain *swapchain, DWORD tid)
1790 {
1791 unsigned int i;
1792
1793 for(i = 0; i < ((IWineD3DSwapChainImpl *) swapchain)->num_contexts; i++) {
1794 if(((IWineD3DSwapChainImpl *) swapchain)->context[i]->tid == tid) {
1795 return ((IWineD3DSwapChainImpl *) swapchain)->context[i];
1796 }
1797
1798 }
1799
1800 /* Create a new context for the thread */
1801 return swapchain_create_context_for_thread(swapchain);
1802 }
1803
1804 /*****************************************************************************
1805 * FindContext
1806 *
1807 * Finds a context for the current render target and thread
1808 *
1809 * Parameters:
1810 * target: Render target to find the context for
1811 * tid: Thread to activate the context for
1812 *
1813 * Returns: The needed context
1814 *
1815 *****************************************************************************/
1816 static struct wined3d_context *FindContext(IWineD3DDeviceImpl *This, IWineD3DSurfaceImpl *target)
1817 {
1818 IWineD3DSwapChain *swapchain = NULL;
1819 struct wined3d_context *current_context = context_get_current();
1820 DWORD tid = GetCurrentThreadId();
1821 struct wined3d_context *context;
1822
1823 if (current_context && current_context->destroyed) current_context = NULL;
1824
1825 if (!target)
1826 {
1827 if (current_context
1828 && current_context->current_rt
1829 && current_context->swapchain->device == This)
1830 {
1831 target = current_context->current_rt;
1832 }
1833 else
1834 {
1835 IWineD3DSwapChainImpl *swapchain = (IWineD3DSwapChainImpl *)This->swapchains[0];
1836 if (swapchain->back_buffers) target = swapchain->back_buffers[0];
1837 else target = swapchain->front_buffer;
1838 }
1839 }
1840
1841 if (current_context && current_context->current_rt == target)
1842 {
1843 context_validate(current_context);
1844 return current_context;
1845 }
1846
1847 if (target->Flags & SFLAG_SWAPCHAIN)
1848 {
1849 TRACE("Rendering onscreen\n");
1850
1851 swapchain = (IWineD3DSwapChain *)target->container;
1852 context = findThreadContextForSwapChain(swapchain, tid);
1853 }
1854 else
1855 {
1856 TRACE("Rendering offscreen\n");
1857
1858 /* Stay with the currently active context. */
1859 if (current_context && current_context->swapchain->device == This)
1860 {
1861 context = current_context;
1862 }
1863 else
1864 {
1865 /* This may happen if the app jumps straight into offscreen rendering
1866 * Start using the context of the primary swapchain. tid == 0 is no problem
1867 * for findThreadContextForSwapChain.
1868 *
1869 * Can also happen on thread switches - in that case findThreadContextForSwapChain
1870 * is perfect to call. */
1871 context = findThreadContextForSwapChain(This->swapchains[0], tid);
1872 }
1873 }
1874
1875 context_validate(context);
1876
1877 return context;
1878 }
1879
1880 /* Context activation is done by the caller. */
1881 static void context_apply_draw_buffer(struct wined3d_context *context, BOOL blit)
1882 {
1883 const struct wined3d_gl_info *gl_info = context->gl_info;
1884 IWineD3DSurfaceImpl *rt = context->current_rt;
1885 IWineD3DDeviceImpl *device;
1886
1887 device = rt->resource.device;
1888 if (!surface_is_offscreen(rt))
1889 {
1890 ENTER_GL();
1891 glDrawBuffer(surface_get_gl_buffer(rt));
1892 checkGLcall("glDrawBuffers()");
1893 LEAVE_GL();
1894 }
1895 else
1896 {
1897 ENTER_GL();
1898 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
1899 {
1900 if (!blit)
1901 {
1902 unsigned int i;
1903
1904 for (i = 0; i < gl_info->limits.buffers; ++i)
1905 {
1906 if (device->render_targets[i])
1907 device->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
1908 else
1909 device->draw_buffers[i] = GL_NONE;
1910 }
1911
1912 if (gl_info->supported[ARB_DRAW_BUFFERS])
1913 {
1914 GL_EXTCALL(glDrawBuffersARB(gl_info->limits.buffers, device->draw_buffers));
1915 checkGLcall("glDrawBuffers()");
1916 }
1917 else
1918 {
1919 glDrawBuffer(device->draw_buffers[0]);
1920 checkGLcall("glDrawBuffer()");
1921 }
1922 } else {
1923 glDrawBuffer(GL_COLOR_ATTACHMENT0);
1924 checkGLcall("glDrawBuffer()");
1925 }
1926 }
1927 else
1928 {
1929 glDrawBuffer(device->offscreenBuffer);
1930 checkGLcall("glDrawBuffer()");
1931 }
1932 LEAVE_GL();
1933 }
1934 }
1935
1936 /* GL locking is done by the caller. */
1937 void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
1938 {
1939 glDrawBuffer(buffer);
1940 checkGLcall("glDrawBuffer()");
1941 context->draw_buffer_dirty = TRUE;
1942 }
1943
1944 static inline void context_set_render_offscreen(struct wined3d_context *context, const struct StateEntry *StateTable,
1945 BOOL offscreen)
1946 {
1947 if (context->render_offscreen == offscreen) return;
1948
1949 Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);
1950 Context_MarkStateDirty(context, STATE_VDECL, StateTable);
1951 Context_MarkStateDirty(context, STATE_VIEWPORT, StateTable);
1952 Context_MarkStateDirty(context, STATE_SCISSORRECT, StateTable);
1953 Context_MarkStateDirty(context, STATE_FRONTFACE, StateTable);
1954 context->render_offscreen = offscreen;
1955 }
1956
1957 static BOOL match_depth_stencil_format(const struct wined3d_format_desc *existing,
1958 const struct wined3d_format_desc *required)
1959 {
1960 short existing_depth, existing_stencil, required_depth, required_stencil;
1961
1962 if(existing == required) return TRUE;
1963 if((existing->Flags & WINED3DFMT_FLAG_FLOAT) != (required->Flags & WINED3DFMT_FLAG_FLOAT)) return FALSE;
1964
1965 getDepthStencilBits(existing, &existing_depth, &existing_stencil);
1966 getDepthStencilBits(required, &required_depth, &required_stencil);
1967
1968 if(existing_depth < required_depth) return FALSE;
1969 /* If stencil bits are used the exact amount is required - otherwise wrapping
1970 * won't work correctly */
1971 if(required_stencil && required_stencil != existing_stencil) return FALSE;
1972 return TRUE;
1973 }
1974 /* The caller provides a context */
1975 static void context_validate_onscreen_formats(IWineD3DDeviceImpl *device, struct wined3d_context *context)
1976 {
1977 /* Onscreen surfaces are always in a swapchain */
1978 IWineD3DSurfaceImpl *depth_stencil = device->depth_stencil;
1979 IWineD3DSwapChainImpl *swapchain = (IWineD3DSwapChainImpl *)context->current_rt->container;
1980
1981 if (!depth_stencil) return;
1982 if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->resource.format_desc)) return;
1983
1984 /* TODO: If the requested format would satisfy the needs of the existing one(reverse match),
1985 * or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new
1986 * format. */
1987 WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n");
1988
1989 /* The currently active context is the necessary context to access the swapchain's onscreen buffers */
1990 IWineD3DSurface_LoadLocation((IWineD3DSurface *)context->current_rt, SFLAG_INTEXTURE, NULL);
1991 swapchain->render_to_fbo = TRUE;
1992 context_set_render_offscreen(context, device->StateTable, TRUE);
1993 }
1994
1995 /* Context activation is done by the caller. */
1996 void context_apply_blit_state(struct wined3d_context *context, IWineD3DDeviceImpl *device)
1997 {
1998 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
1999 {
2000 if (context->render_offscreen)
2001 {
2002 FIXME("Applying blit state for an offscreen target with ORM_FBO. This should be avoided.\n");
2003 surface_internal_preload(context->current_rt, SRGB_RGB);
2004
2005 ENTER_GL();
2006 context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, context->current_rt, NULL);
2007 LEAVE_GL();
2008 }
2009 else
2010 {
2011 context_validate_onscreen_formats(device, context);
2012
2013 ENTER_GL();
2014 context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
2015 LEAVE_GL();
2016 }
2017
2018 context->draw_buffer_dirty = TRUE;
2019 }
2020
2021 if (context->draw_buffer_dirty)
2022 {
2023 context_apply_draw_buffer(context, TRUE);
2024 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
2025 context->draw_buffer_dirty = FALSE;
2026 }
2027
2028 SetupForBlit(device, context);
2029 }
2030
2031 /* Context activation is done by the caller. */
2032 void context_apply_clear_state(struct wined3d_context *context, IWineD3DDeviceImpl *device,
2033 IWineD3DSurfaceImpl *render_target, IWineD3DSurfaceImpl *depth_stencil)
2034 {
2035 const struct StateEntry *state_table = device->StateTable;
2036 GLenum buffer;
2037
2038 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2039 {
2040 if (!context->render_offscreen) context_validate_onscreen_formats(device, context);
2041 ENTER_GL();
2042 context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, render_target, depth_stencil);
2043 LEAVE_GL();
2044 }
2045
2046 if (!surface_is_offscreen(render_target))
2047 buffer = surface_get_gl_buffer(render_target);
2048 else if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2049 buffer = GL_COLOR_ATTACHMENT0;
2050 else
2051 buffer = device->offscreenBuffer;
2052
2053 ENTER_GL();
2054 context_set_draw_buffer(context, buffer);
2055 LEAVE_GL();
2056
2057 if (context->last_was_blit)
2058 {
2059 device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
2060 }
2061
2062 /* Blending and clearing should be orthogonal, but tests on the nvidia
2063 * driver show that disabling blending when clearing improves the clearing
2064 * performance incredibly. */
2065 ENTER_GL();
2066 glDisable(GL_BLEND);
2067 glEnable(GL_SCISSOR_TEST);
2068 checkGLcall("glEnable GL_SCISSOR_TEST");
2069 LEAVE_GL();
2070
2071 context->last_was_blit = FALSE;
2072 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), state_table);
2073 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), state_table);
2074 Context_MarkStateDirty(context, STATE_SCISSORRECT, state_table);
2075 }
2076
2077 /* Context activation is done by the caller. */
2078 void context_apply_draw_state(struct wined3d_context *context, IWineD3DDeviceImpl *device)
2079 {
2080 const struct StateEntry *state_table = device->StateTable;
2081 unsigned int i;
2082
2083 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2084 {
2085 if (!context->render_offscreen)
2086 {
2087 context_validate_onscreen_formats(device, context);
2088 ENTER_GL();
2089 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL);
2090 LEAVE_GL();
2091 }
2092 else
2093 {
2094 ENTER_GL();
2095 context_apply_fbo_state(context, GL_FRAMEBUFFER, device->render_targets, device->depth_stencil);
2096 LEAVE_GL();
2097 }
2098 }
2099
2100 if (context->draw_buffer_dirty)
2101 {
2102 context_apply_draw_buffer(context, FALSE);
2103 context->draw_buffer_dirty = FALSE;
2104 }
2105
2106 if (context->last_was_blit)
2107 {
2108 device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
2109 }
2110
2111 IWineD3DDeviceImpl_FindTexUnitMap(device);
2112 device_preload_textures(device);
2113 if (isStateDirty(context, STATE_VDECL))
2114 device_update_stream_info(device, context->gl_info);
2115
2116 ENTER_GL();
2117 for (i = 0; i < context->numDirtyEntries; ++i)
2118 {
2119 DWORD rep = context->dirtyArray[i];
2120 DWORD idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
2121 BYTE shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
2122 context->isStateDirty[idx] &= ~(1 << shift);
2123 state_table[rep].apply(rep, device->stateBlock, context);
2124 }
2125 LEAVE_GL();
2126 context->numDirtyEntries = 0; /* This makes the whole list clean */
2127 context->last_was_blit = FALSE;
2128 }
2129
2130 static void context_setup_target(IWineD3DDeviceImpl *device,
2131 struct wined3d_context *context, IWineD3DSurfaceImpl *target)
2132 {
2133 BOOL old_render_offscreen = context->render_offscreen, render_offscreen;
2134 const struct StateEntry *StateTable = device->StateTable;
2135
2136 if (!target) return;
2137 else if (context->current_rt == target) return;
2138 render_offscreen = surface_is_offscreen(target);
2139
2140 context_set_render_offscreen(context, StateTable, render_offscreen);
2141
2142 /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
2143 * the alpha blend state changes with different render target formats. */
2144 if (!context->current_rt)
2145 {
2146 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2147 }
2148 else
2149 {
2150 const struct wined3d_format_desc *old = context->current_rt->resource.format_desc;
2151 const struct wined3d_format_desc *new = target->resource.format_desc;
2152
2153 if (old->format != new->format)
2154 {
2155 /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
2156 if ((old->alpha_mask && !new->alpha_mask) || (!old->alpha_mask && new->alpha_mask)
2157 || !(new->Flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING))
2158 {
2159 Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2160 }
2161 }
2162
2163 /* When switching away from an offscreen render target, and we're not
2164 * using FBOs, we have to read the drawable into the texture. This is
2165 * done via PreLoad (and SFLAG_INDRAWABLE set on the surface). There
2166 * are some things that need care though. PreLoad needs a GL context,
2167 * and FindContext is called before the context is activated. It also
2168 * has to be called with the old rendertarget active, otherwise a
2169 * wrong drawable is read. */
2170 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
2171 && old_render_offscreen && context->current_rt != target)
2172 {
2173 BOOL oldInDraw = device->isInDraw;
2174
2175 /* surface_internal_preload() requires a context to load the
2176 * texture, so it will call context_acquire(). Set isInDraw to true
2177 * to signal surface_internal_preload() that it has a context. */
2178
2179 /* FIXME: This is just broken. There's no guarantee whatsoever
2180 * that the currently active context, if any, is appropriate for
2181 * reading back the render target. We should probably call
2182 * context_set_current(context) here and then rely on
2183 * context_acquire() doing the right thing. */
2184 device->isInDraw = TRUE;
2185
2186 /* Read the back buffer of the old drawable into the destination texture. */
2187 if (context->current_rt->texture_name_srgb)
2188 {
2189 surface_internal_preload(context->current_rt, SRGB_BOTH);
2190 }
2191 else
2192 {
2193 surface_internal_preload(context->current_rt, SRGB_RGB);
2194 }
2195
2196 IWineD3DSurface_ModifyLocation((IWineD3DSurface *)context->current_rt, SFLAG_INDRAWABLE, FALSE);
2197
2198 device->isInDraw = oldInDraw;
2199 }
2200 }
2201
2202 context->draw_buffer_dirty = TRUE;
2203 context->current_rt = target;
2204 }
2205
2206 /*****************************************************************************
2207 * context_acquire
2208 *
2209 * Finds a rendering context and drawable matching the device and render
2210 * target for the current thread, activates them and puts them into the
2211 * requested state.
2212 *
2213 * Params:
2214 * This: Device to activate the context for
2215 * target: Requested render target
2216 * usage: Prepares the context for blitting, drawing or other actions
2217 *
2218 *****************************************************************************/
2219 struct wined3d_context *context_acquire(IWineD3DDeviceImpl *device, IWineD3DSurfaceImpl *target)
2220 {
2221 struct wined3d_context *current_context = context_get_current();
2222 struct wined3d_context *context;
2223
2224 TRACE("device %p, target %p.\n", device, target);
2225
2226 context = FindContext(device, target);
2227 context_setup_target(device, context, target);
2228 context_enter(context);
2229 if (!context->valid) return context;
2230
2231 if (context != current_context)
2232 {
2233 if (!context_set_current(context)) ERR("Failed to activate the new context.\n");
2234 else device->frag_pipe->enable_extension((IWineD3DDevice *)device, !context->last_was_blit);
2235
2236 if (context->vshader_const_dirty)
2237 {
2238 memset(context->vshader_const_dirty, 1,
2239 sizeof(*context->vshader_const_dirty) * device->d3d_vshader_constantF);
2240 device->highest_dirty_vs_const = device->d3d_vshader_constantF;
2241 }
2242 if (context->pshader_const_dirty)
2243 {
2244 memset(context->pshader_const_dirty, 1,
2245 sizeof(*context->pshader_const_dirty) * device->d3d_pshader_constantF);
2246 device->highest_dirty_ps_const = device->d3d_pshader_constantF;
2247 }
2248 }
2249 else if (context->restore_ctx)
2250 {
2251 if (!pwglMakeCurrent(context->hdc, context->glCtx))
2252 {
2253 DWORD err = GetLastError();
2254 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
2255 context->hdc, context->glCtx, err);
2256 }
2257 }
2258
2259 return context;
2260 }
an attempt at megring old patches into wine