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wined3d: Make context_update_window() just mark the GL context as needing to be set...
[wine/multimedia.git] / dlls / wined3d / context.c
blob13eb41532529f56328d834eceb8b975571b2a77c
1 /*
2 * Context and render target management in wined3d
3 *
4 * Copyright 2007-2011, 2013 Stefan Dösinger for CodeWeavers
5 * Copyright 2009-2011 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 "wine/port.h"
24
25 #include <stdio.h>
26 #ifdef HAVE_FLOAT_H
27 # include <float.h>
28 #endif
29
30 #include "wined3d_private.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
33 WINE_DECLARE_DEBUG_CHANNEL(d3d_perf);
34 WINE_DECLARE_DEBUG_CHANNEL(d3d_synchronous);
35
36 #define WINED3D_MAX_FBO_ENTRIES 64
37
38 static DWORD wined3d_context_tls_idx;
39
40 /* FBO helper functions */
41
42 /* Context activation is done by the caller. */
43 static void context_bind_fbo(struct wined3d_context *context, GLenum target, GLuint fbo)
44 {
45 const struct wined3d_gl_info *gl_info = context->gl_info;
46
47 switch (target)
48 {
49 case GL_READ_FRAMEBUFFER:
50 if (context->fbo_read_binding == fbo) return;
51 context->fbo_read_binding = fbo;
52 break;
53
54 case GL_DRAW_FRAMEBUFFER:
55 if (context->fbo_draw_binding == fbo) return;
56 context->fbo_draw_binding = fbo;
57 break;
58
59 case GL_FRAMEBUFFER:
60 if (context->fbo_read_binding == fbo
61 && context->fbo_draw_binding == fbo) return;
62 context->fbo_read_binding = fbo;
63 context->fbo_draw_binding = fbo;
64 break;
65
66 default:
67 FIXME("Unhandled target %#x.\n", target);
68 break;
69 }
70
71 gl_info->fbo_ops.glBindFramebuffer(target, fbo);
72 checkGLcall("glBindFramebuffer()");
73 }
74
75 /* Context activation is done by the caller. */
76 static void context_clean_fbo_attachments(const struct wined3d_gl_info *gl_info, GLenum target)
77 {
78 unsigned int i;
79
80 for (i = 0; i < gl_info->limits.buffers; ++i)
81 {
82 gl_info->fbo_ops.glFramebufferTexture2D(target, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, 0, 0);
83 checkGLcall("glFramebufferTexture2D()");
84 }
85 gl_info->fbo_ops.glFramebufferTexture2D(target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
86 checkGLcall("glFramebufferTexture2D()");
87
88 gl_info->fbo_ops.glFramebufferTexture2D(target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
89 checkGLcall("glFramebufferTexture2D()");
90 }
91
92 /* Context activation is done by the caller. */
93 static void context_destroy_fbo(struct wined3d_context *context, GLuint fbo)
94 {
95 const struct wined3d_gl_info *gl_info = context->gl_info;
96
97 context_bind_fbo(context, GL_FRAMEBUFFER, fbo);
98 context_clean_fbo_attachments(gl_info, GL_FRAMEBUFFER);
99 context_bind_fbo(context, GL_FRAMEBUFFER, 0);
100
101 gl_info->fbo_ops.glDeleteFramebuffers(1, &fbo);
102 checkGLcall("glDeleteFramebuffers()");
103 }
104
105 static void context_attach_depth_stencil_rb(const struct wined3d_gl_info *gl_info,
106 GLenum fbo_target, DWORD format_flags, GLuint rb)
107 {
108 if (format_flags & WINED3DFMT_FLAG_DEPTH)
109 {
110 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rb);
111 checkGLcall("glFramebufferRenderbuffer()");
112 }
113
114 if (format_flags & WINED3DFMT_FLAG_STENCIL)
115 {
116 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, rb);
117 checkGLcall("glFramebufferRenderbuffer()");
118 }
119 }
120
121 /* Context activation is done by the caller. */
122 static void context_attach_depth_stencil_fbo(struct wined3d_context *context,
123 GLenum fbo_target, struct wined3d_surface *depth_stencil, DWORD location)
124 {
125 const struct wined3d_gl_info *gl_info = context->gl_info;
126
127 TRACE("Attach depth stencil %p\n", depth_stencil);
128
129 if (depth_stencil)
130 {
131 DWORD format_flags = depth_stencil->resource.format->flags;
132
133 if (depth_stencil->current_renderbuffer)
134 {
135 context_attach_depth_stencil_rb(gl_info, fbo_target,
136 format_flags, depth_stencil->current_renderbuffer->id);
137 }
138 else
139 {
140 switch (location)
141 {
142 case WINED3D_LOCATION_TEXTURE_RGB:
143 case WINED3D_LOCATION_TEXTURE_SRGB:
144 surface_prepare_texture(depth_stencil, context, FALSE);
145
146 if (format_flags & WINED3DFMT_FLAG_DEPTH)
147 {
148 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT,
149 depth_stencil->texture_target, depth_stencil->container->texture_rgb.name,
150 depth_stencil->texture_level);
151 checkGLcall("glFramebufferTexture2D()");
152 }
153
154 if (format_flags & WINED3DFMT_FLAG_STENCIL)
155 {
156 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT,
157 depth_stencil->texture_target, depth_stencil->container->texture_rgb.name,
158 depth_stencil->texture_level);
159 checkGLcall("glFramebufferTexture2D()");
160 }
161 break;
162
163 case WINED3D_LOCATION_RB_MULTISAMPLE:
164 surface_prepare_rb(depth_stencil, gl_info, TRUE);
165 context_attach_depth_stencil_rb(gl_info, fbo_target,
166 format_flags, depth_stencil->rb_multisample);
167 break;
168
169 case WINED3D_LOCATION_RB_RESOLVED:
170 surface_prepare_rb(depth_stencil, gl_info, FALSE);
171 context_attach_depth_stencil_rb(gl_info, fbo_target,
172 format_flags, depth_stencil->rb_resolved);
173 break;
174
175 default:
176 ERR("Unsupported location %s (%#x).\n", wined3d_debug_location(location), location);
177 break;
178 }
179 }
180
181 if (!(format_flags & WINED3DFMT_FLAG_DEPTH))
182 {
183 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
184 checkGLcall("glFramebufferTexture2D()");
185 }
186
187 if (!(format_flags & WINED3DFMT_FLAG_STENCIL))
188 {
189 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
190 checkGLcall("glFramebufferTexture2D()");
191 }
192 }
193 else
194 {
195 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
196 checkGLcall("glFramebufferTexture2D()");
197
198 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
199 checkGLcall("glFramebufferTexture2D()");
200 }
201 }
202
203 /* Context activation is done by the caller. */
204 static void context_attach_surface_fbo(struct wined3d_context *context,
205 GLenum fbo_target, DWORD idx, struct wined3d_surface *surface, DWORD location)
206 {
207 const struct wined3d_gl_info *gl_info = context->gl_info;
208
209 TRACE("Attach surface %p to %u\n", surface, idx);
210
211 if (surface && surface->resource.format->id != WINED3DFMT_NULL)
212 {
213 BOOL srgb;
214
215 switch (location)
216 {
217 case WINED3D_LOCATION_TEXTURE_RGB:
218 case WINED3D_LOCATION_TEXTURE_SRGB:
219 srgb = location == WINED3D_LOCATION_TEXTURE_SRGB;
220 surface_prepare_texture(surface, context, srgb);
221 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx,
222 surface->texture_target, surface_get_texture_name(surface, gl_info, srgb),
223 surface->texture_level);
224 checkGLcall("glFramebufferTexture2D()");
225 break;
226
227 case WINED3D_LOCATION_RB_MULTISAMPLE:
228 surface_prepare_rb(surface, gl_info, TRUE);
229 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_COLOR_ATTACHMENT0 + idx,
230 GL_RENDERBUFFER, surface->rb_multisample);
231 checkGLcall("glFramebufferRenderbuffer()");
232 break;
233
234 case WINED3D_LOCATION_RB_RESOLVED:
235 surface_prepare_rb(surface, gl_info, FALSE);
236 gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_COLOR_ATTACHMENT0 + idx,
237 GL_RENDERBUFFER, surface->rb_resolved);
238 checkGLcall("glFramebufferRenderbuffer()");
239 break;
240
241 default:
242 ERR("Unsupported location %s (%#x).\n", wined3d_debug_location(location), location);
243 break;
244 }
245 }
246 else
247 {
248 gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, GL_TEXTURE_2D, 0, 0);
249 checkGLcall("glFramebufferTexture2D()");
250 }
251 }
252
253 /* Context activation is done by the caller. */
254 void context_check_fbo_status(const struct wined3d_context *context, GLenum target)
255 {
256 const struct wined3d_gl_info *gl_info = context->gl_info;
257 GLenum status;
258
259 if (!FIXME_ON(d3d)) return;
260
261 status = gl_info->fbo_ops.glCheckFramebufferStatus(target);
262 if (status == GL_FRAMEBUFFER_COMPLETE)
263 {
264 TRACE("FBO complete\n");
265 }
266 else
267 {
268 const struct wined3d_surface *attachment;
269 unsigned int i;
270
271 FIXME("FBO status %s (%#x)\n", debug_fbostatus(status), status);
272
273 if (!context->current_fbo)
274 {
275 ERR("FBO 0 is incomplete, driver bug?\n");
276 return;
277 }
278
279 FIXME("\tLocation %s (%#x).\n", wined3d_debug_location(context->current_fbo->location),
280 context->current_fbo->location);
281
282 /* Dump the FBO attachments */
283 for (i = 0; i < gl_info->limits.buffers; ++i)
284 {
285 attachment = context->current_fbo->render_targets[i];
286 if (attachment)
287 {
288 FIXME("\tColor attachment %d: (%p) %s %ux%u %u samples.\n",
289 i, attachment, debug_d3dformat(attachment->resource.format->id),
290 attachment->pow2Width, attachment->pow2Height, attachment->resource.multisample_type);
291 }
292 }
293 attachment = context->current_fbo->depth_stencil;
294 if (attachment)
295 {
296 FIXME("\tDepth attachment: (%p) %s %ux%u %u samples.\n",
297 attachment, debug_d3dformat(attachment->resource.format->id),
298 attachment->pow2Width, attachment->pow2Height, attachment->resource.multisample_type);
299 }
300 }
301 }
302
303 static inline DWORD context_generate_rt_mask(GLenum buffer)
304 {
305 /* Should take care of all the GL_FRONT/GL_BACK/GL_AUXi/GL_NONE... cases */
306 return buffer ? (1 << 31) | buffer : 0;
307 }
308
309 static inline DWORD context_generate_rt_mask_from_surface(const struct wined3d_surface *target)
310 {
311 return (1 << 31) | surface_get_gl_buffer(target);
312 }
313
314 static struct fbo_entry *context_create_fbo_entry(const struct wined3d_context *context,
315 struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location)
316 {
317 const struct wined3d_gl_info *gl_info = context->gl_info;
318 struct fbo_entry *entry;
319
320 entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
321 entry->render_targets = HeapAlloc(GetProcessHeap(), 0, gl_info->limits.buffers * sizeof(*entry->render_targets));
322 memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
323 entry->depth_stencil = depth_stencil;
324 entry->location = location;
325 entry->rt_mask = context_generate_rt_mask(GL_COLOR_ATTACHMENT0);
326 entry->attached = FALSE;
327 gl_info->fbo_ops.glGenFramebuffers(1, &entry->id);
328 checkGLcall("glGenFramebuffers()");
329 TRACE("Created FBO %u.\n", entry->id);
330
331 return entry;
332 }
333
334 /* Context activation is done by the caller. */
335 static void context_reuse_fbo_entry(struct wined3d_context *context, GLenum target,
336 struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil,
337 DWORD location, struct fbo_entry *entry)
338 {
339 const struct wined3d_gl_info *gl_info = context->gl_info;
340
341 context_bind_fbo(context, target, entry->id);
342 context_clean_fbo_attachments(gl_info, target);
343
344 memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
345 entry->depth_stencil = depth_stencil;
346 entry->location = location;
347 entry->attached = FALSE;
348 }
349
350 /* Context activation is done by the caller. */
351 static void context_destroy_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
352 {
353 if (entry->id)
354 {
355 TRACE("Destroy FBO %u.\n", entry->id);
356 context_destroy_fbo(context, entry->id);
357 }
358 --context->fbo_entry_count;
359 list_remove(&entry->entry);
360 HeapFree(GetProcessHeap(), 0, entry->render_targets);
361 HeapFree(GetProcessHeap(), 0, entry);
362 }
363
364 /* Context activation is done by the caller. */
365 static struct fbo_entry *context_find_fbo_entry(struct wined3d_context *context, GLenum target,
366 struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location)
367 {
368 const struct wined3d_gl_info *gl_info = context->gl_info;
369 struct fbo_entry *entry;
370
371 if (depth_stencil && render_targets && render_targets[0])
372 {
373 if (depth_stencil->resource.width < render_targets[0]->resource.width ||
374 depth_stencil->resource.height < render_targets[0]->resource.height)
375 {
376 WARN("Depth stencil is smaller than the primary color buffer, disabling\n");
377 depth_stencil = NULL;
378 }
379 }
380
381 LIST_FOR_EACH_ENTRY(entry, &context->fbo_list, struct fbo_entry, entry)
382 {
383 if (!memcmp(entry->render_targets,
384 render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets))
385 && entry->depth_stencil == depth_stencil && entry->location == location)
386 {
387 list_remove(&entry->entry);
388 list_add_head(&context->fbo_list, &entry->entry);
389 return entry;
390 }
391 }
392
393 if (context->fbo_entry_count < WINED3D_MAX_FBO_ENTRIES)
394 {
395 entry = context_create_fbo_entry(context, render_targets, depth_stencil, location);
396 list_add_head(&context->fbo_list, &entry->entry);
397 ++context->fbo_entry_count;
398 }
399 else
400 {
401 entry = LIST_ENTRY(list_tail(&context->fbo_list), struct fbo_entry, entry);
402 context_reuse_fbo_entry(context, target, render_targets, depth_stencil, location, entry);
403 list_remove(&entry->entry);
404 list_add_head(&context->fbo_list, &entry->entry);
405 }
406
407 return entry;
408 }
409
410 /* Context activation is done by the caller. */
411 static void context_apply_fbo_entry(struct wined3d_context *context, GLenum target, struct fbo_entry *entry)
412 {
413 const struct wined3d_gl_info *gl_info = context->gl_info;
414 unsigned int i;
415 GLuint read_binding, draw_binding;
416
417 if (entry->attached)
418 {
419 context_bind_fbo(context, target, entry->id);
420 return;
421 }
422
423 read_binding = context->fbo_read_binding;
424 draw_binding = context->fbo_draw_binding;
425 context_bind_fbo(context, GL_FRAMEBUFFER, entry->id);
426
427 /* Apply render targets */
428 for (i = 0; i < gl_info->limits.buffers; ++i)
429 {
430 context_attach_surface_fbo(context, target, i, entry->render_targets[i], entry->location);
431 }
432
433 /* Apply depth targets */
434 if (entry->depth_stencil)
435 surface_set_compatible_renderbuffer(entry->depth_stencil, entry->render_targets[0]);
436 context_attach_depth_stencil_fbo(context, target, entry->depth_stencil, entry->location);
437
438 /* Set valid read and draw buffer bindings to satisfy pedantic pre-ES2_compatibility
439 * GL contexts requirements. */
440 glReadBuffer(GL_NONE);
441 context_set_draw_buffer(context, GL_NONE);
442 if (target != GL_FRAMEBUFFER)
443 {
444 if (target == GL_READ_FRAMEBUFFER)
445 context_bind_fbo(context, GL_DRAW_FRAMEBUFFER, draw_binding);
446 else
447 context_bind_fbo(context, GL_READ_FRAMEBUFFER, read_binding);
448 }
449
450 entry->attached = TRUE;
451 }
452
453 /* Context activation is done by the caller. */
454 static void context_apply_fbo_state(struct wined3d_context *context, GLenum target,
455 struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location)
456 {
457 struct fbo_entry *entry, *entry2;
458
459 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
460 {
461 context_destroy_fbo_entry(context, entry);
462 }
463
464 if (context->rebind_fbo)
465 {
466 context_bind_fbo(context, GL_FRAMEBUFFER, 0);
467 context->rebind_fbo = FALSE;
468 }
469
470 if (location == WINED3D_LOCATION_DRAWABLE)
471 {
472 context->current_fbo = NULL;
473 context_bind_fbo(context, target, 0);
474 }
475 else
476 {
477 context->current_fbo = context_find_fbo_entry(context, target, render_targets, depth_stencil, location);
478 context_apply_fbo_entry(context, target, context->current_fbo);
479 }
480 }
481
482 /* Context activation is done by the caller. */
483 void context_apply_fbo_state_blit(struct wined3d_context *context, GLenum target,
484 struct wined3d_surface *render_target, struct wined3d_surface *depth_stencil, DWORD location)
485 {
486 UINT clear_size = (context->gl_info->limits.buffers - 1) * sizeof(*context->blit_targets);
487
488 context->blit_targets[0] = render_target;
489 if (clear_size)
490 memset(&context->blit_targets[1], 0, clear_size);
491 context_apply_fbo_state(context, target, context->blit_targets, depth_stencil, location);
492 }
493
494 /* Context activation is done by the caller. */
495 void context_alloc_occlusion_query(struct wined3d_context *context, struct wined3d_occlusion_query *query)
496 {
497 const struct wined3d_gl_info *gl_info = context->gl_info;
498
499 if (context->free_occlusion_query_count)
500 {
501 query->id = context->free_occlusion_queries[--context->free_occlusion_query_count];
502 }
503 else
504 {
505 if (gl_info->supported[ARB_OCCLUSION_QUERY])
506 {
507 GL_EXTCALL(glGenQueriesARB(1, &query->id));
508 checkGLcall("glGenQueriesARB");
509
510 TRACE("Allocated occlusion query %u in context %p.\n", query->id, context);
511 }
512 else
513 {
514 WARN("Occlusion queries not supported, not allocating query id.\n");
515 query->id = 0;
516 }
517 }
518
519 query->context = context;
520 list_add_head(&context->occlusion_queries, &query->entry);
521 }
522
523 void context_free_occlusion_query(struct wined3d_occlusion_query *query)
524 {
525 struct wined3d_context *context = query->context;
526
527 list_remove(&query->entry);
528 query->context = NULL;
529
530 if (context->free_occlusion_query_count >= context->free_occlusion_query_size - 1)
531 {
532 UINT new_size = context->free_occlusion_query_size << 1;
533 GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_occlusion_queries,
534 new_size * sizeof(*context->free_occlusion_queries));
535
536 if (!new_data)
537 {
538 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
539 return;
540 }
541
542 context->free_occlusion_query_size = new_size;
543 context->free_occlusion_queries = new_data;
544 }
545
546 context->free_occlusion_queries[context->free_occlusion_query_count++] = query->id;
547 }
548
549 /* Context activation is done by the caller. */
550 void context_alloc_event_query(struct wined3d_context *context, struct wined3d_event_query *query)
551 {
552 const struct wined3d_gl_info *gl_info = context->gl_info;
553
554 if (context->free_event_query_count)
555 {
556 query->object = context->free_event_queries[--context->free_event_query_count];
557 }
558 else
559 {
560 if (gl_info->supported[ARB_SYNC])
561 {
562 /* Using ARB_sync, not much to do here. */
563 query->object.sync = NULL;
564 TRACE("Allocated event query %p in context %p.\n", query->object.sync, context);
565 }
566 else if (gl_info->supported[APPLE_FENCE])
567 {
568 GL_EXTCALL(glGenFencesAPPLE(1, &query->object.id));
569 checkGLcall("glGenFencesAPPLE");
570
571 TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
572 }
573 else if(gl_info->supported[NV_FENCE])
574 {
575 GL_EXTCALL(glGenFencesNV(1, &query->object.id));
576 checkGLcall("glGenFencesNV");
577
578 TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
579 }
580 else
581 {
582 WARN("Event queries not supported, not allocating query id.\n");
583 query->object.id = 0;
584 }
585 }
586
587 query->context = context;
588 list_add_head(&context->event_queries, &query->entry);
589 }
590
591 void context_free_event_query(struct wined3d_event_query *query)
592 {
593 struct wined3d_context *context = query->context;
594
595 list_remove(&query->entry);
596 query->context = NULL;
597
598 if (context->free_event_query_count >= context->free_event_query_size - 1)
599 {
600 UINT new_size = context->free_event_query_size << 1;
601 union wined3d_gl_query_object *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_event_queries,
602 new_size * sizeof(*context->free_event_queries));
603
604 if (!new_data)
605 {
606 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->object.id, context);
607 return;
608 }
609
610 context->free_event_query_size = new_size;
611 context->free_event_queries = new_data;
612 }
613
614 context->free_event_queries[context->free_event_query_count++] = query->object;
615 }
616
617 typedef void (context_fbo_entry_func_t)(struct wined3d_context *context, struct fbo_entry *entry);
618
619 static void context_enum_surface_fbo_entries(const struct wined3d_device *device,
620 const struct wined3d_surface *surface, context_fbo_entry_func_t *callback)
621 {
622 UINT i;
623
624 for (i = 0; i < device->context_count; ++i)
625 {
626 struct wined3d_context *context = device->contexts[i];
627 const struct wined3d_gl_info *gl_info = context->gl_info;
628 struct fbo_entry *entry, *entry2;
629
630 if (context->current_rt == surface) context->current_rt = NULL;
631
632 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
633 {
634 UINT j;
635
636 if (entry->depth_stencil == surface)
637 {
638 callback(context, entry);
639 continue;
640 }
641
642 for (j = 0; j < gl_info->limits.buffers; ++j)
643 {
644 if (entry->render_targets[j] == surface)
645 {
646 callback(context, entry);
647 break;
648 }
649 }
650 }
651 }
652 }
653
654 static void context_queue_fbo_entry_destruction(struct wined3d_context *context, struct fbo_entry *entry)
655 {
656 list_remove(&entry->entry);
657 list_add_head(&context->fbo_destroy_list, &entry->entry);
658 }
659
660 void context_resource_released(const struct wined3d_device *device,
661 struct wined3d_resource *resource, enum wined3d_resource_type type)
662 {
663 if (!device->d3d_initialized) return;
664
665 switch (type)
666 {
667 case WINED3D_RTYPE_SURFACE:
668 context_enum_surface_fbo_entries(device, surface_from_resource(resource),
669 context_queue_fbo_entry_destruction);
670 break;
671
672 default:
673 break;
674 }
675 }
676
677 static void context_detach_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
678 {
679 entry->attached = FALSE;
680 }
681
682 void context_resource_unloaded(const struct wined3d_device *device,
683 struct wined3d_resource *resource, enum wined3d_resource_type type)
684 {
685 switch (type)
686 {
687 case WINED3D_RTYPE_SURFACE:
688 context_enum_surface_fbo_entries(device, surface_from_resource(resource),
689 context_detach_fbo_entry);
690 break;
691
692 default:
693 break;
694 }
695 }
696
697 void context_surface_update(struct wined3d_context *context, const struct wined3d_surface *surface)
698 {
699 const struct wined3d_gl_info *gl_info = context->gl_info;
700 struct fbo_entry *entry = context->current_fbo;
701 unsigned int i;
702
703 if (!entry || context->rebind_fbo) return;
704
705 for (i = 0; i < gl_info->limits.buffers; ++i)
706 {
707 if (surface == entry->render_targets[i])
708 {
709 TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface, i);
710 context->rebind_fbo = TRUE;
711 return;
712 }
713 }
714
715 if (surface == entry->depth_stencil)
716 {
717 TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface);
718 context->rebind_fbo = TRUE;
719 }
720 }
721
722 static BOOL context_set_pixel_format(const struct wined3d_gl_info *gl_info, HDC dc, int format)
723 {
724 int current = GetPixelFormat(dc);
725
726 if (current == format) return TRUE;
727
728 if (!current)
729 {
730 if (!SetPixelFormat(dc, format, NULL))
731 {
732 /* This may also happen if the dc belongs to a destroyed window. */
733 WARN("Failed to set pixel format %d on device context %p, last error %#x.\n",
734 format, dc, GetLastError());
735 return FALSE;
736 }
737 return TRUE;
738 }
739
740 /* By default WGL doesn't allow pixel format adjustments but we need it
741 * here. For this reason there's a Wine specific wglSetPixelFormat()
742 * which allows us to set the pixel format multiple times. Only use it
743 * when really needed. */
744 if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
745 {
746 if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format)))
747 {
748 ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
749 format, dc);
750 return FALSE;
751 }
752 return TRUE;
753 }
754
755 /* OpenGL doesn't allow pixel format adjustments. Print an error and
756 * continue using the old format. There's a big chance that the old
757 * format works although with a performance hit and perhaps rendering
758 * errors. */
759 ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
760 format, dc, current);
761 return TRUE;
762 }
763
764 static BOOL context_set_gl_context(struct wined3d_context *ctx)
765 {
766 struct wined3d_swapchain *swapchain = ctx->swapchain;
767 BOOL backup = FALSE;
768
769 if (!context_set_pixel_format(ctx->gl_info, ctx->hdc, ctx->pixel_format))
770 {
771 WARN("Failed to set pixel format %d on device context %p.\n",
772 ctx->pixel_format, ctx->hdc);
773 backup = TRUE;
774 }
775
776 if (backup || !wglMakeCurrent(ctx->hdc, ctx->glCtx))
777 {
778 HDC dc;
779
780 WARN("Failed to make GL context %p current on device context %p, last error %#x.\n",
781 ctx->glCtx, ctx->hdc, GetLastError());
782 ctx->valid = 0;
783 WARN("Trying fallback to the backup window.\n");
784
785 /* FIXME: If the context is destroyed it's no longer associated with
786 * a swapchain, so we can't use the swapchain to get a backup dc. To
787 * make this work windowless contexts would need to be handled by the
788 * device. */
789 if (ctx->destroyed)
790 {
791 FIXME("Unable to get backup dc for destroyed context %p.\n", ctx);
792 context_set_current(NULL);
793 return FALSE;
794 }
795
796 if (!(dc = swapchain_get_backup_dc(swapchain)))
797 {
798 context_set_current(NULL);
799 return FALSE;
800 }
801
802 if (!context_set_pixel_format(ctx->gl_info, dc, ctx->pixel_format))
803 {
804 ERR("Failed to set pixel format %d on device context %p.\n",
805 ctx->pixel_format, dc);
806 context_set_current(NULL);
807 return FALSE;
808 }
809
810 if (!wglMakeCurrent(dc, ctx->glCtx))
811 {
812 ERR("Fallback to backup window (dc %p) failed too, last error %#x.\n",
813 dc, GetLastError());
814 context_set_current(NULL);
815 return FALSE;
816 }
817
818 ctx->valid = 1;
819 }
820 ctx->needs_set = 0;
821 return TRUE;
822 }
823
824 static void context_restore_gl_context(const struct wined3d_gl_info *gl_info, HDC dc, HGLRC gl_ctx, int pf)
825 {
826 if (!context_set_pixel_format(gl_info, dc, pf))
827 {
828 ERR("Failed to restore pixel format %d on device context %p.\n", pf, dc);
829 context_set_current(NULL);
830 return;
831 }
832
833 if (!wglMakeCurrent(dc, gl_ctx))
834 {
835 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
836 gl_ctx, dc, GetLastError());
837 context_set_current(NULL);
838 }
839 }
840
841 static void context_update_window(struct wined3d_context *context)
842 {
843 if (context->win_handle == context->swapchain->win_handle)
844 return;
845
846 TRACE("Updating context %p window from %p to %p.\n",
847 context, context->win_handle, context->swapchain->win_handle);
848
849 if (context->valid)
850 wined3d_release_dc(context->win_handle, context->hdc);
851 else
852 context->valid = 1;
853
854 context->win_handle = context->swapchain->win_handle;
855 context->needs_set = 1;
856
857 if (!(context->hdc = GetDC(context->win_handle)))
858 {
859 ERR("Failed to get a device context for window %p.\n", context->win_handle);
860 goto err;
861 }
862
863 return;
864
865 err:
866 context->valid = 0;
867 }
868
869 static void context_destroy_gl_resources(struct wined3d_context *context)
870 {
871 const struct wined3d_gl_info *gl_info = context->gl_info;
872 struct wined3d_occlusion_query *occlusion_query;
873 struct wined3d_event_query *event_query;
874 struct fbo_entry *entry, *entry2;
875 HGLRC restore_ctx;
876 HDC restore_dc;
877 unsigned int i;
878 int restore_pf;
879
880 restore_ctx = wglGetCurrentContext();
881 restore_dc = wglGetCurrentDC();
882 restore_pf = GetPixelFormat(restore_dc);
883
884 if (restore_ctx == context->glCtx)
885 restore_ctx = NULL;
886 else if (context->valid)
887 context_set_gl_context(context);
888
889 LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry)
890 {
891 if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY])
892 GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query->id));
893 occlusion_query->context = NULL;
894 }
895
896 LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry)
897 {
898 if (context->valid)
899 {
900 if (gl_info->supported[ARB_SYNC])
901 {
902 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
903 }
904 else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id));
905 else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id));
906 }
907 event_query->context = NULL;
908 }
909
910 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
911 {
912 if (!context->valid) entry->id = 0;
913 context_destroy_fbo_entry(context, entry);
914 }
915
916 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
917 {
918 if (!context->valid) entry->id = 0;
919 context_destroy_fbo_entry(context, entry);
920 }
921
922 if (context->valid)
923 {
924 if (context->dummy_arbfp_prog)
925 {
926 GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog));
927 }
928
929 if (gl_info->supported[ARB_OCCLUSION_QUERY])
930 GL_EXTCALL(glDeleteQueriesARB(context->free_occlusion_query_count, context->free_occlusion_queries));
931
932 if (gl_info->supported[ARB_SYNC])
933 {
934 for (i = 0; i < context->free_event_query_count; ++i)
935 {
936 GL_EXTCALL(glDeleteSync(context->free_event_queries[i].sync));
937 }
938 }
939 else if (gl_info->supported[APPLE_FENCE])
940 {
941 for (i = 0; i < context->free_event_query_count; ++i)
942 {
943 GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id));
944 }
945 }
946 else if (gl_info->supported[NV_FENCE])
947 {
948 for (i = 0; i < context->free_event_query_count; ++i)
949 {
950 GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id));
951 }
952 }
953
954 checkGLcall("context cleanup");
955 }
956
957 HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries);
958 HeapFree(GetProcessHeap(), 0, context->free_event_queries);
959
960 if (restore_ctx)
961 {
962 context_restore_gl_context(gl_info, restore_dc, restore_ctx, restore_pf);
963 }
964 else if (wglGetCurrentContext() && !wglMakeCurrent(NULL, NULL))
965 {
966 ERR("Failed to disable GL context.\n");
967 }
968
969 wined3d_release_dc(context->win_handle, context->hdc);
970
971 if (!wglDeleteContext(context->glCtx))
972 {
973 DWORD err = GetLastError();
974 ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err);
975 }
976 }
977
978 DWORD context_get_tls_idx(void)
979 {
980 return wined3d_context_tls_idx;
981 }
982
983 void context_set_tls_idx(DWORD idx)
984 {
985 wined3d_context_tls_idx = idx;
986 }
987
988 struct wined3d_context *context_get_current(void)
989 {
990 return TlsGetValue(wined3d_context_tls_idx);
991 }
992
993 BOOL context_set_current(struct wined3d_context *ctx)
994 {
995 struct wined3d_context *old = context_get_current();
996
997 if (old == ctx)
998 {
999 TRACE("Already using D3D context %p.\n", ctx);
1000 return TRUE;
1001 }
1002
1003 if (old)
1004 {
1005 if (old->destroyed)
1006 {
1007 TRACE("Switching away from destroyed context %p.\n", old);
1008 context_destroy_gl_resources(old);
1009 HeapFree(GetProcessHeap(), 0, (void *)old->gl_info);
1010 HeapFree(GetProcessHeap(), 0, old);
1011 }
1012 else
1013 {
1014 old->current = 0;
1015 }
1016 }
1017
1018 if (ctx)
1019 {
1020 if (!ctx->valid)
1021 {
1022 ERR("Trying to make invalid context %p current\n", ctx);
1023 return FALSE;
1024 }
1025
1026 TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc);
1027 if (!context_set_gl_context(ctx))
1028 return FALSE;
1029 ctx->current = 1;
1030 }
1031 else if(wglGetCurrentContext())
1032 {
1033 TRACE("Clearing current D3D context.\n");
1034 if (!wglMakeCurrent(NULL, NULL))
1035 {
1036 DWORD err = GetLastError();
1037 ERR("Failed to clear current GL context, last error %#x.\n", err);
1038 TlsSetValue(wined3d_context_tls_idx, NULL);
1039 return FALSE;
1040 }
1041 }
1042
1043 return TlsSetValue(wined3d_context_tls_idx, ctx);
1044 }
1045
1046 void context_release(struct wined3d_context *context)
1047 {
1048 TRACE("Releasing context %p, level %u.\n", context, context->level);
1049
1050 if (WARN_ON(d3d))
1051 {
1052 if (!context->level)
1053 WARN("Context %p is not active.\n", context);
1054 else if (context != context_get_current())
1055 WARN("Context %p is not the current context.\n", context);
1056 }
1057
1058 if (!--context->level && context->restore_ctx)
1059 {
1060 TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc);
1061 context_restore_gl_context(context->gl_info, context->restore_dc, context->restore_ctx, context->restore_pf);
1062 context->restore_ctx = NULL;
1063 context->restore_dc = NULL;
1064 }
1065 }
1066
1067 static void context_enter(struct wined3d_context *context)
1068 {
1069 TRACE("Entering context %p, level %u.\n", context, context->level + 1);
1070
1071 if (!context->level++)
1072 {
1073 const struct wined3d_context *current_context = context_get_current();
1074 HGLRC current_gl = wglGetCurrentContext();
1075
1076 if (current_gl && (!current_context || current_context->glCtx != current_gl))
1077 {
1078 TRACE("Another GL context (%p on device context %p) is already current.\n",
1079 current_gl, wglGetCurrentDC());
1080 context->restore_ctx = current_gl;
1081 context->restore_dc = wglGetCurrentDC();
1082 context->restore_pf = GetPixelFormat(context->restore_dc);
1083 context->needs_set = 1;
1084 }
1085 }
1086 }
1087
1088 void context_invalidate_state(struct wined3d_context *context, DWORD state)
1089 {
1090 DWORD rep = context->state_table[state].representative;
1091 DWORD idx;
1092 BYTE shift;
1093
1094 if (isStateDirty(context, rep)) return;
1095
1096 context->dirtyArray[context->numDirtyEntries++] = rep;
1097 idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
1098 shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
1099 context->isStateDirty[idx] |= (1 << shift);
1100 }
1101
1102 /* This function takes care of wined3d pixel format selection. */
1103 static int context_choose_pixel_format(const struct wined3d_device *device, HDC hdc,
1104 const struct wined3d_format *color_format, const struct wined3d_format *ds_format,
1105 BOOL auxBuffers, BOOL findCompatible)
1106 {
1107 int iPixelFormat=0;
1108 BYTE redBits, greenBits, blueBits, alphaBits, colorBits;
1109 BYTE depthBits=0, stencilBits=0;
1110 unsigned int current_value;
1111 unsigned int cfg_count = device->adapter->cfg_count;
1112 unsigned int i;
1113
1114 TRACE("device %p, dc %p, color_format %s, ds_format %s, aux_buffers %#x, find_compatible %#x.\n",
1115 device, hdc, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id),
1116 auxBuffers, findCompatible);
1117
1118 if (!getColorBits(color_format, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits))
1119 {
1120 ERR("Unable to get color bits for format %s (%#x)!\n",
1121 debug_d3dformat(color_format->id), color_format->id);
1122 return 0;
1123 }
1124
1125 getDepthStencilBits(ds_format, &depthBits, &stencilBits);
1126
1127 current_value = 0;
1128 for (i = 0; i < cfg_count; ++i)
1129 {
1130 const struct wined3d_pixel_format *cfg = &device->adapter->cfgs[i];
1131 unsigned int value;
1132
1133 /* For now only accept RGBA formats. Perhaps some day we will
1134 * allow floating point formats for pbuffers. */
1135 if (cfg->iPixelType != WGL_TYPE_RGBA_ARB)
1136 continue;
1137 /* In window mode we need a window drawable format and double buffering. */
1138 if (!(cfg->windowDrawable && cfg->doubleBuffer))
1139 continue;
1140 if (cfg->redSize < redBits)
1141 continue;
1142 if (cfg->greenSize < greenBits)
1143 continue;
1144 if (cfg->blueSize < blueBits)
1145 continue;
1146 if (cfg->alphaSize < alphaBits)
1147 continue;
1148 if (cfg->depthSize < depthBits)
1149 continue;
1150 if (stencilBits && cfg->stencilSize != stencilBits)
1151 continue;
1152 /* Check multisampling support. */
1153 if (cfg->numSamples)
1154 continue;
1155
1156 value = 1;
1157 /* We try to locate a format which matches our requirements exactly. In case of
1158 * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1159 if (cfg->depthSize == depthBits)
1160 value += 1;
1161 if (cfg->stencilSize == stencilBits)
1162 value += 2;
1163 if (cfg->alphaSize == alphaBits)
1164 value += 4;
1165 /* We like to have aux buffers in backbuffer mode */
1166 if (auxBuffers && cfg->auxBuffers)
1167 value += 8;
1168 if (cfg->redSize == redBits
1169 && cfg->greenSize == greenBits
1170 && cfg->blueSize == blueBits)
1171 value += 16;
1172
1173 if (value > current_value)
1174 {
1175 iPixelFormat = cfg->iPixelFormat;
1176 current_value = value;
1177 }
1178 }
1179
1180 /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1181 if(!iPixelFormat && !findCompatible) {
1182 ERR("Can't find a suitable iPixelFormat\n");
1183 return FALSE;
1184 } else if(!iPixelFormat) {
1185 PIXELFORMATDESCRIPTOR pfd;
1186
1187 TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1188 /* PixelFormat selection */
1189 ZeroMemory(&pfd, sizeof(pfd));
1190 pfd.nSize = sizeof(pfd);
1191 pfd.nVersion = 1;
1192 pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
1193 pfd.iPixelType = PFD_TYPE_RGBA;
1194 pfd.cAlphaBits = alphaBits;
1195 pfd.cColorBits = colorBits;
1196 pfd.cDepthBits = depthBits;
1197 pfd.cStencilBits = stencilBits;
1198 pfd.iLayerType = PFD_MAIN_PLANE;
1199
1200 iPixelFormat = ChoosePixelFormat(hdc, &pfd);
1201 if(!iPixelFormat) {
1202 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
1203 ERR("Can't find a suitable iPixelFormat\n");
1204 return FALSE;
1205 }
1206 }
1207
1208 TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1209 iPixelFormat, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id));
1210 return iPixelFormat;
1211 }
1212
1213 /* Context activation is done by the caller. */
1214 static void bind_dummy_textures(const struct wined3d_device *device, const struct wined3d_context *context)
1215 {
1216 const struct wined3d_gl_info *gl_info = context->gl_info;
1217 unsigned int i, count = min(MAX_COMBINED_SAMPLERS, gl_info->limits.combined_samplers);
1218
1219 for (i = 0; i < count; ++i)
1220 {
1221 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i));
1222 checkGLcall("glActiveTextureARB");
1223
1224 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D, device->dummy_texture_2d[i]);
1225 checkGLcall("glBindTexture");
1226
1227 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1228 {
1229 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_RECTANGLE_ARB, device->dummy_texture_rect[i]);
1230 checkGLcall("glBindTexture");
1231 }
1232
1233 if (gl_info->supported[EXT_TEXTURE3D])
1234 {
1235 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_3D, device->dummy_texture_3d[i]);
1236 checkGLcall("glBindTexture");
1237 }
1238
1239 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1240 {
1241 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, device->dummy_texture_cube[i]);
1242 checkGLcall("glBindTexture");
1243 }
1244 }
1245 }
1246
1247 BOOL context_debug_output_enabled(const struct wined3d_gl_info *gl_info)
1248 {
1249 return gl_info->supported[ARB_DEBUG_OUTPUT]
1250 && (ERR_ON(d3d) || FIXME_ON(d3d) || WARN_ON(d3d_perf));
1251 }
1252
1253 static void WINE_GLAPI wined3d_debug_callback(GLenum source, GLenum type, GLuint id,
1254 GLenum severity, GLsizei length, const char *message, void *ctx)
1255 {
1256 switch (type)
1257 {
1258 case GL_DEBUG_TYPE_ERROR_ARB:
1259 ERR("%p: %s.\n", ctx, debugstr_an(message, length));
1260 break;
1261
1262 case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB:
1263 case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB:
1264 case GL_DEBUG_TYPE_PORTABILITY_ARB:
1265 FIXME("%p: %s.\n", ctx, debugstr_an(message, length));
1266 break;
1267
1268 case GL_DEBUG_TYPE_PERFORMANCE_ARB:
1269 WARN_(d3d_perf)("%p: %s.\n", ctx, debugstr_an(message, length));
1270 break;
1271
1272 default:
1273 FIXME("ctx %p, type %#x: %s.\n", ctx, type, debugstr_an(message, length));
1274 break;
1275 }
1276 }
1277
1278 struct wined3d_context *context_create(struct wined3d_swapchain *swapchain,
1279 struct wined3d_surface *target, const struct wined3d_format *ds_format)
1280 {
1281 struct wined3d_device *device = swapchain->device;
1282 const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1283 const struct wined3d_format *color_format;
1284 struct wined3d_context *ret;
1285 BOOL auxBuffers = FALSE;
1286 HGLRC ctx, share_ctx;
1287 int pixel_format;
1288 unsigned int s;
1289 int swap_interval;
1290 DWORD state;
1291 HDC hdc;
1292
1293 TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle);
1294
1295 ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
1296 if (!ret)
1297 return NULL;
1298
1299 ret->blit_targets = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1300 gl_info->limits.buffers * sizeof(*ret->blit_targets));
1301 if (!ret->blit_targets)
1302 goto out;
1303
1304 ret->draw_buffers = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1305 gl_info->limits.buffers * sizeof(*ret->draw_buffers));
1306 if (!ret->draw_buffers)
1307 goto out;
1308
1309 ret->free_occlusion_query_size = 4;
1310 ret->free_occlusion_queries = HeapAlloc(GetProcessHeap(), 0,
1311 ret->free_occlusion_query_size * sizeof(*ret->free_occlusion_queries));
1312 if (!ret->free_occlusion_queries)
1313 goto out;
1314
1315 list_init(&ret->occlusion_queries);
1316
1317 ret->free_event_query_size = 4;
1318 ret->free_event_queries = HeapAlloc(GetProcessHeap(), 0,
1319 ret->free_event_query_size * sizeof(*ret->free_event_queries));
1320 if (!ret->free_event_queries)
1321 goto out;
1322
1323 list_init(&ret->event_queries);
1324 list_init(&ret->fbo_list);
1325 list_init(&ret->fbo_destroy_list);
1326
1327 if (!device->shader_backend->shader_allocate_context_data(ret))
1328 {
1329 ERR("Failed to allocate shader backend context data.\n");
1330 goto out;
1331 }
1332
1333 /* Initialize the texture unit mapping to a 1:1 mapping */
1334 for (s = 0; s < MAX_COMBINED_SAMPLERS; ++s)
1335 {
1336 if (s < gl_info->limits.fragment_samplers)
1337 {
1338 ret->tex_unit_map[s] = s;
1339 ret->rev_tex_unit_map[s] = s;
1340 }
1341 else
1342 {
1343 ret->tex_unit_map[s] = WINED3D_UNMAPPED_STAGE;
1344 ret->rev_tex_unit_map[s] = WINED3D_UNMAPPED_STAGE;
1345 }
1346 }
1347
1348 if (!(hdc = GetDC(swapchain->win_handle)))
1349 {
1350 WARN("Failed to retireve device context, trying swapchain backup.\n");
1351
1352 if (!(hdc = swapchain_get_backup_dc(swapchain)))
1353 {
1354 ERR("Failed to retrieve a device context.\n");
1355 goto out;
1356 }
1357 }
1358
1359 color_format = target->resource.format;
1360
1361 /* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1362 * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1363 if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER)
1364 {
1365 auxBuffers = TRUE;
1366
1367 if (color_format->id == WINED3DFMT_B4G4R4X4_UNORM)
1368 color_format = wined3d_get_format(gl_info, WINED3DFMT_B4G4R4A4_UNORM);
1369 else if (color_format->id == WINED3DFMT_B8G8R8X8_UNORM)
1370 color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1371 }
1372
1373 /* DirectDraw supports 8bit paletted render targets and these are used by
1374 * old games like StarCraft and C&C. Most modern hardware doesn't support
1375 * 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1376 * conversion (ab)uses the alpha component for storing the palette index.
1377 * For this reason we require a format with 8bit alpha, so request
1378 * A8R8G8B8. */
1379 if (color_format->id == WINED3DFMT_P8_UINT)
1380 color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1381
1382 /* Try to find a pixel format which matches our requirements. */
1383 pixel_format = context_choose_pixel_format(device, hdc, color_format, ds_format, auxBuffers, FALSE);
1384
1385 /* Try to locate a compatible format if we weren't able to find anything. */
1386 if (!pixel_format)
1387 {
1388 TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1389 pixel_format = context_choose_pixel_format(device, hdc, color_format, ds_format, auxBuffers, TRUE);
1390 }
1391
1392 /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1393 if (!pixel_format)
1394 {
1395 ERR("Can't find a suitable pixel format.\n");
1396 goto out;
1397 }
1398
1399 context_enter(ret);
1400
1401 if (!context_set_pixel_format(gl_info, hdc, pixel_format))
1402 {
1403 ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc);
1404 context_release(ret);
1405 goto out;
1406 }
1407
1408 share_ctx = device->context_count ? device->contexts[0]->glCtx : NULL;
1409 if (gl_info->p_wglCreateContextAttribsARB)
1410 {
1411 unsigned int ctx_attrib_idx = 0;
1412 GLint ctx_attribs[3];
1413
1414 if (context_debug_output_enabled(gl_info))
1415 {
1416 ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_FLAGS_ARB;
1417 ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_DEBUG_BIT_ARB;
1418 }
1419 ctx_attribs[ctx_attrib_idx] = 0;
1420
1421 if (!(ctx = gl_info->p_wglCreateContextAttribsARB(hdc, share_ctx, ctx_attribs)))
1422 {
1423 ERR("Failed to create a WGL context.\n");
1424 context_release(ret);
1425 goto out;
1426 }
1427 }
1428 else
1429 {
1430 if (!(ctx = wglCreateContext(hdc)))
1431 {
1432 ERR("Failed to create a WGL context.\n");
1433 context_release(ret);
1434 goto out;
1435 }
1436
1437 if (share_ctx && !wglShareLists(share_ctx, ctx))
1438 {
1439 ERR("wglShareLists(%p, %p) failed, last error %#x.\n", share_ctx, ctx, GetLastError());
1440 context_release(ret);
1441 if (!wglDeleteContext(ctx))
1442 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1443 goto out;
1444 }
1445 }
1446
1447 if (!device_context_add(device, ret))
1448 {
1449 ERR("Failed to add the newly created context to the context list\n");
1450 context_release(ret);
1451 if (!wglDeleteContext(ctx))
1452 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1453 goto out;
1454 }
1455
1456 ret->gl_info = gl_info;
1457 ret->d3d_info = &device->adapter->d3d_info;
1458 ret->state_table = device->StateTable;
1459
1460 /* Mark all states dirty to force a proper initialization of the states
1461 * on the first use of the context. */
1462 for (state = 0; state <= STATE_HIGHEST; ++state)
1463 {
1464 if (ret->state_table[state].representative)
1465 context_invalidate_state(ret, state);
1466 }
1467
1468 ret->swapchain = swapchain;
1469 ret->current_rt = target;
1470 ret->tid = GetCurrentThreadId();
1471
1472 ret->render_offscreen = surface_is_offscreen(target);
1473 ret->draw_buffers_mask = context_generate_rt_mask(GL_BACK);
1474 ret->valid = 1;
1475
1476 ret->glCtx = ctx;
1477 ret->win_handle = swapchain->win_handle;
1478 ret->hdc = hdc;
1479 ret->pixel_format = pixel_format;
1480 ret->needs_set = 1;
1481
1482 /* Set up the context defaults */
1483 if (!context_set_current(ret))
1484 {
1485 ERR("Cannot activate context to set up defaults.\n");
1486 device_context_remove(device, ret);
1487 context_release(ret);
1488 if (!wglDeleteContext(ctx))
1489 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1490 goto out;
1491 }
1492
1493 if (context_debug_output_enabled(gl_info))
1494 {
1495 GL_EXTCALL(glDebugMessageCallbackARB(wined3d_debug_callback, ret));
1496 if (TRACE_ON(d3d_synchronous))
1497 gl_info->gl_ops.gl.p_glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
1498 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_FALSE));
1499 if (ERR_ON(d3d))
1500 {
1501 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_ERROR_ARB,
1502 GL_DONT_CARE, 0, NULL, GL_TRUE));
1503 }
1504 if (FIXME_ON(d3d))
1505 {
1506 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB,
1507 GL_DONT_CARE, 0, NULL, GL_TRUE));
1508 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB,
1509 GL_DONT_CARE, 0, NULL, GL_TRUE));
1510 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_PORTABILITY_ARB,
1511 GL_DONT_CARE, 0, NULL, GL_TRUE));
1512 }
1513 if (WARN_ON(d3d_perf))
1514 {
1515 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_PERFORMANCE_ARB,
1516 GL_DONT_CARE, 0, NULL, GL_TRUE));
1517 }
1518 }
1519
1520 switch (swapchain->desc.swap_interval)
1521 {
1522 case WINED3DPRESENT_INTERVAL_IMMEDIATE:
1523 swap_interval = 0;
1524 break;
1525 case WINED3DPRESENT_INTERVAL_DEFAULT:
1526 case WINED3DPRESENT_INTERVAL_ONE:
1527 swap_interval = 1;
1528 break;
1529 case WINED3DPRESENT_INTERVAL_TWO:
1530 swap_interval = 2;
1531 break;
1532 case WINED3DPRESENT_INTERVAL_THREE:
1533 swap_interval = 3;
1534 break;
1535 case WINED3DPRESENT_INTERVAL_FOUR:
1536 swap_interval = 4;
1537 break;
1538 default:
1539 FIXME("Unknown swap interval %#x.\n", swapchain->desc.swap_interval);
1540 swap_interval = 1;
1541 }
1542
1543 if (gl_info->supported[WGL_EXT_SWAP_CONTROL])
1544 {
1545 if (!GL_EXTCALL(wglSwapIntervalEXT(swap_interval)))
1546 ERR("wglSwapIntervalEXT failed to set swap interval %d for context %p, last error %#x\n",
1547 swap_interval, ret, GetLastError());
1548 }
1549
1550 gl_info->gl_ops.gl.p_glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers);
1551
1552 TRACE("Setting up the screen\n");
1553
1554 gl_info->gl_ops.gl.p_glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
1555 checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1556
1557 gl_info->gl_ops.gl.p_glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
1558 checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1559
1560 gl_info->gl_ops.gl.p_glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1561 checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1562
1563 gl_info->gl_ops.gl.p_glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);
1564 checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1565 gl_info->gl_ops.gl.p_glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);
1566 checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);");
1567
1568 if (gl_info->supported[ARB_VERTEX_BLEND])
1569 {
1570 /* Direct3D always uses n-1 weights for n world matrices and uses
1571 * 1 - sum for the last one this is equal to GL_WEIGHT_SUM_UNITY_ARB.
1572 * Enabling it doesn't do anything unless GL_VERTEX_BLEND_ARB isn't
1573 * enabled as well. */
1574 gl_info->gl_ops.gl.p_glEnable(GL_WEIGHT_SUM_UNITY_ARB);
1575 checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1576 }
1577 if (gl_info->supported[NV_TEXTURE_SHADER2])
1578 {
1579 /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1580 * the previous texture where to source the offset from is always unit - 1.
1581 */
1582 for (s = 1; s < gl_info->limits.textures; ++s)
1583 {
1584 context_active_texture(ret, gl_info, s);
1585 gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_SHADER_NV,
1586 GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
1587 checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1588 }
1589 }
1590 if (gl_info->supported[ARB_FRAGMENT_PROGRAM])
1591 {
1592 /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1593 * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1594 * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1595 * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1596 * is ever assigned.
1597 *
1598 * So make sure a program is assigned to each context. The first real ARBFP use will set a different
1599 * program and the dummy program is destroyed when the context is destroyed.
1600 */
1601 const char *dummy_program =
1602 "!!ARBfp1.0\n"
1603 "MOV result.color, fragment.color.primary;\n"
1604 "END\n";
1605 GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog));
1606 GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog));
1607 GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program));
1608 }
1609
1610 if (gl_info->supported[ARB_POINT_SPRITE])
1611 {
1612 for (s = 0; s < gl_info->limits.textures; ++s)
1613 {
1614 context_active_texture(ret, gl_info, s);
1615 gl_info->gl_ops.gl.p_glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
1616 checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1617 }
1618 }
1619
1620 if (gl_info->supported[ARB_PROVOKING_VERTEX])
1621 {
1622 GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION));
1623 }
1624 else if (gl_info->supported[EXT_PROVOKING_VERTEX])
1625 {
1626 GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT));
1627 }
1628 ret->shader_update_mask = (1 << WINED3D_SHADER_TYPE_PIXEL)
1629 | (1 << WINED3D_SHADER_TYPE_VERTEX)
1630 | (1 << WINED3D_SHADER_TYPE_GEOMETRY);
1631
1632 /* If this happens to be the first context for the device, dummy textures
1633 * are not created yet. In that case, they will be created (and bound) by
1634 * create_dummy_textures right after this context is initialized. */
1635 if (device->dummy_texture_2d[0])
1636 bind_dummy_textures(device, ret);
1637
1638 TRACE("Created context %p.\n", ret);
1639
1640 return ret;
1641
1642 out:
1643 device->shader_backend->shader_free_context_data(ret);
1644 HeapFree(GetProcessHeap(), 0, ret->free_event_queries);
1645 HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries);
1646 HeapFree(GetProcessHeap(), 0, ret->draw_buffers);
1647 HeapFree(GetProcessHeap(), 0, ret->blit_targets);
1648 HeapFree(GetProcessHeap(), 0, ret);
1649 return NULL;
1650 }
1651
1652 void context_destroy(struct wined3d_device *device, struct wined3d_context *context)
1653 {
1654 BOOL destroy;
1655
1656 TRACE("Destroying ctx %p\n", context);
1657
1658 if (context->tid == GetCurrentThreadId() || !context->current)
1659 {
1660 context_destroy_gl_resources(context);
1661 TlsSetValue(wined3d_context_tls_idx, NULL);
1662 destroy = TRUE;
1663 }
1664 else
1665 {
1666 /* Make a copy of gl_info for context_destroy_gl_resources use, the one
1667 in wined3d_adapter may go away in the meantime */
1668 struct wined3d_gl_info *gl_info = HeapAlloc(GetProcessHeap(), 0, sizeof(*gl_info));
1669 *gl_info = *context->gl_info;
1670 context->gl_info = gl_info;
1671 context->destroyed = 1;
1672 destroy = FALSE;
1673 }
1674
1675 device->shader_backend->shader_free_context_data(context);
1676 HeapFree(GetProcessHeap(), 0, context->draw_buffers);
1677 HeapFree(GetProcessHeap(), 0, context->blit_targets);
1678 device_context_remove(device, context);
1679 if (destroy) HeapFree(GetProcessHeap(), 0, context);
1680 }
1681
1682 /* Context activation is done by the caller. */
1683 static void set_blit_dimension(const struct wined3d_gl_info *gl_info, UINT width, UINT height)
1684 {
1685 const GLdouble projection[] =
1686 {
1687 2.0 / width, 0.0, 0.0, 0.0,
1688 0.0, 2.0 / height, 0.0, 0.0,
1689 0.0, 0.0, 2.0, 0.0,
1690 -1.0, -1.0, -1.0, 1.0,
1691 };
1692
1693 gl_info->gl_ops.gl.p_glMatrixMode(GL_PROJECTION);
1694 checkGLcall("glMatrixMode(GL_PROJECTION)");
1695 gl_info->gl_ops.gl.p_glLoadMatrixd(projection);
1696 checkGLcall("glLoadMatrixd");
1697 gl_info->gl_ops.gl.p_glViewport(0, 0, width, height);
1698 checkGLcall("glViewport");
1699 }
1700
1701 static void context_get_rt_size(const struct wined3d_context *context, SIZE *size)
1702 {
1703 const struct wined3d_surface *rt = context->current_rt;
1704
1705 if (rt->swapchain && rt->swapchain->front_buffer == rt)
1706 {
1707 RECT window_size;
1708
1709 GetClientRect(context->win_handle, &window_size);
1710 size->cx = window_size.right - window_size.left;
1711 size->cy = window_size.bottom - window_size.top;
1712
1713 return;
1714 }
1715
1716 size->cx = rt->resource.width;
1717 size->cy = rt->resource.height;
1718 }
1719
1720 /*****************************************************************************
1721 * SetupForBlit
1722 *
1723 * Sets up a context for DirectDraw blitting.
1724 * All texture units are disabled, texture unit 0 is set as current unit
1725 * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
1726 * color writing enabled for all channels
1727 * register combiners disabled, shaders disabled
1728 * world matrix is set to identity, texture matrix 0 too
1729 * projection matrix is setup for drawing screen coordinates
1730 *
1731 * Params:
1732 * This: Device to activate the context for
1733 * context: Context to setup
1734 *
1735 *****************************************************************************/
1736 /* Context activation is done by the caller. */
1737 static void SetupForBlit(const struct wined3d_device *device, struct wined3d_context *context)
1738 {
1739 int i;
1740 const struct wined3d_gl_info *gl_info = context->gl_info;
1741 DWORD sampler;
1742 SIZE rt_size;
1743
1744 TRACE("Setting up context %p for blitting\n", context);
1745
1746 context_get_rt_size(context, &rt_size);
1747
1748 if (context->last_was_blit)
1749 {
1750 if (context->blit_w != rt_size.cx || context->blit_h != rt_size.cy)
1751 {
1752 set_blit_dimension(gl_info, rt_size.cx, rt_size.cy);
1753 context->blit_w = rt_size.cx;
1754 context->blit_h = rt_size.cy;
1755 /* No need to dirtify here, the states are still dirtified because
1756 * they weren't applied since the last SetupForBlit() call. */
1757 }
1758 TRACE("Context is already set up for blitting, nothing to do\n");
1759 return;
1760 }
1761 context->last_was_blit = TRUE;
1762
1763 /* Disable all textures. The caller can then bind a texture it wants to blit
1764 * from
1765 *
1766 * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
1767 * function texture unit. No need to care for higher samplers
1768 */
1769 for (i = gl_info->limits.textures - 1; i > 0 ; --i)
1770 {
1771 sampler = context->rev_tex_unit_map[i];
1772 context_active_texture(context, gl_info, i);
1773
1774 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1775 {
1776 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1777 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1778 }
1779 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_3D);
1780 checkGLcall("glDisable GL_TEXTURE_3D");
1781 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1782 {
1783 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_RECTANGLE_ARB);
1784 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1785 }
1786 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_2D);
1787 checkGLcall("glDisable GL_TEXTURE_2D");
1788
1789 gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1790 checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
1791
1792 if (sampler != WINED3D_UNMAPPED_STAGE)
1793 {
1794 if (sampler < MAX_TEXTURES)
1795 context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3D_TSS_COLOR_OP));
1796 context_invalidate_state(context, STATE_SAMPLER(sampler));
1797 }
1798 }
1799 context_active_texture(context, gl_info, 0);
1800
1801 sampler = context->rev_tex_unit_map[0];
1802
1803 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1804 {
1805 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1806 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1807 }
1808 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_3D);
1809 checkGLcall("glDisable GL_TEXTURE_3D");
1810 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1811 {
1812 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_RECTANGLE_ARB);
1813 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1814 }
1815 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_2D);
1816 checkGLcall("glDisable GL_TEXTURE_2D");
1817
1818 gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1819
1820 gl_info->gl_ops.gl.p_glMatrixMode(GL_TEXTURE);
1821 checkGLcall("glMatrixMode(GL_TEXTURE)");
1822 gl_info->gl_ops.gl.p_glLoadIdentity();
1823 checkGLcall("glLoadIdentity()");
1824
1825 if (gl_info->supported[EXT_TEXTURE_LOD_BIAS])
1826 {
1827 gl_info->gl_ops.gl.p_glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
1828 GL_TEXTURE_LOD_BIAS_EXT, 0.0f);
1829 checkGLcall("glTexEnvf GL_TEXTURE_LOD_BIAS_EXT ...");
1830 }
1831
1832 if (sampler != WINED3D_UNMAPPED_STAGE)
1833 {
1834 if (sampler < MAX_TEXTURES)
1835 {
1836 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_TEXTURE0 + sampler));
1837 context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3D_TSS_COLOR_OP));
1838 }
1839 context_invalidate_state(context, STATE_SAMPLER(sampler));
1840 }
1841
1842 /* Other misc states */
1843 gl_info->gl_ops.gl.p_glDisable(GL_ALPHA_TEST);
1844 checkGLcall("glDisable(GL_ALPHA_TEST)");
1845 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHATESTENABLE));
1846 gl_info->gl_ops.gl.p_glDisable(GL_LIGHTING);
1847 checkGLcall("glDisable GL_LIGHTING");
1848 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_LIGHTING));
1849 gl_info->gl_ops.gl.p_glDisable(GL_DEPTH_TEST);
1850 checkGLcall("glDisable GL_DEPTH_TEST");
1851 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ZENABLE));
1852 glDisableWINE(GL_FOG);
1853 checkGLcall("glDisable GL_FOG");
1854 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_FOGENABLE));
1855 gl_info->gl_ops.gl.p_glDisable(GL_BLEND);
1856 checkGLcall("glDisable GL_BLEND");
1857 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
1858 gl_info->gl_ops.gl.p_glDisable(GL_CULL_FACE);
1859 checkGLcall("glDisable GL_CULL_FACE");
1860 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_CULLMODE));
1861 gl_info->gl_ops.gl.p_glDisable(GL_STENCIL_TEST);
1862 checkGLcall("glDisable GL_STENCIL_TEST");
1863 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_STENCILENABLE));
1864 gl_info->gl_ops.gl.p_glDisable(GL_SCISSOR_TEST);
1865 checkGLcall("glDisable GL_SCISSOR_TEST");
1866 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
1867 if (gl_info->supported[ARB_POINT_SPRITE])
1868 {
1869 gl_info->gl_ops.gl.p_glDisable(GL_POINT_SPRITE_ARB);
1870 checkGLcall("glDisable GL_POINT_SPRITE_ARB");
1871 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_POINTSPRITEENABLE));
1872 }
1873 gl_info->gl_ops.gl.p_glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
1874 checkGLcall("glColorMask");
1875 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE));
1876 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE1));
1877 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE2));
1878 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE3));
1879 if (gl_info->supported[EXT_SECONDARY_COLOR])
1880 {
1881 gl_info->gl_ops.gl.p_glDisable(GL_COLOR_SUM_EXT);
1882 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SPECULARENABLE));
1883 checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
1884 }
1885
1886 /* Setup transforms */
1887 gl_info->gl_ops.gl.p_glMatrixMode(GL_MODELVIEW);
1888 checkGLcall("glMatrixMode(GL_MODELVIEW)");
1889 gl_info->gl_ops.gl.p_glLoadIdentity();
1890 checkGLcall("glLoadIdentity()");
1891 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_WORLD_MATRIX(0)));
1892
1893 context->last_was_rhw = TRUE;
1894 context_invalidate_state(context, STATE_VDECL); /* because of last_was_rhw = TRUE */
1895
1896 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
1897 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
1898 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
1899 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
1900 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
1901 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
1902 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_CLIPPING));
1903
1904 set_blit_dimension(gl_info, rt_size.cx, rt_size.cy);
1905
1906 /* Disable shaders */
1907 device->shader_backend->shader_disable(device->shader_priv, context);
1908
1909 context->blit_w = rt_size.cx;
1910 context->blit_h = rt_size.cy;
1911 context_invalidate_state(context, STATE_VIEWPORT);
1912 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_PROJECTION));
1913 }
1914
1915 static inline BOOL is_rt_mask_onscreen(DWORD rt_mask)
1916 {
1917 return rt_mask & (1 << 31);
1918 }
1919
1920 static inline GLenum draw_buffer_from_rt_mask(DWORD rt_mask)
1921 {
1922 return rt_mask & ~(1 << 31);
1923 }
1924
1925 /* Context activation is done by the caller. */
1926 static void context_apply_draw_buffers(struct wined3d_context *context, DWORD rt_mask)
1927 {
1928 const struct wined3d_gl_info *gl_info = context->gl_info;
1929
1930 if (!rt_mask)
1931 {
1932 gl_info->gl_ops.gl.p_glDrawBuffer(GL_NONE);
1933 checkGLcall("glDrawBuffer()");
1934 }
1935 else if (is_rt_mask_onscreen(rt_mask))
1936 {
1937 gl_info->gl_ops.gl.p_glDrawBuffer(draw_buffer_from_rt_mask(rt_mask));
1938 checkGLcall("glDrawBuffer()");
1939 }
1940 else
1941 {
1942 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
1943 {
1944 unsigned int i = 0;
1945
1946 while (rt_mask)
1947 {
1948 if (rt_mask & 1)
1949 context->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
1950 else
1951 context->draw_buffers[i] = GL_NONE;
1952
1953 rt_mask >>= 1;
1954 ++i;
1955 }
1956
1957 if (gl_info->supported[ARB_DRAW_BUFFERS])
1958 {
1959 GL_EXTCALL(glDrawBuffersARB(i, context->draw_buffers));
1960 checkGLcall("glDrawBuffers()");
1961 }
1962 else
1963 {
1964 gl_info->gl_ops.gl.p_glDrawBuffer(context->draw_buffers[0]);
1965 checkGLcall("glDrawBuffer()");
1966 }
1967 }
1968 else
1969 {
1970 ERR("Unexpected draw buffers mask with backbuffer ORM.\n");
1971 }
1972 }
1973 }
1974
1975 /* Context activation is done by the caller. */
1976 void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
1977 {
1978 const struct wined3d_gl_info *gl_info = context->gl_info;
1979 DWORD *current_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
1980 DWORD new_mask = context_generate_rt_mask(buffer);
1981
1982 if (new_mask == *current_mask)
1983 return;
1984
1985 gl_info->gl_ops.gl.p_glDrawBuffer(buffer);
1986 checkGLcall("glDrawBuffer()");
1987
1988 *current_mask = new_mask;
1989 }
1990
1991 /* Context activation is done by the caller. */
1992 void context_active_texture(struct wined3d_context *context, const struct wined3d_gl_info *gl_info, unsigned int unit)
1993 {
1994 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0 + unit));
1995 checkGLcall("glActiveTextureARB");
1996 context->active_texture = unit;
1997 }
1998
1999 void context_bind_texture(struct wined3d_context *context, GLenum target, GLuint name)
2000 {
2001 const struct wined3d_gl_info *gl_info = context->gl_info;
2002 DWORD unit = context->active_texture;
2003 DWORD old_texture_type = context->texture_type[unit];
2004
2005 if (name)
2006 {
2007 gl_info->gl_ops.gl.p_glBindTexture(target, name);
2008 checkGLcall("glBindTexture");
2009 }
2010 else
2011 {
2012 target = GL_NONE;
2013 }
2014
2015 if (old_texture_type != target)
2016 {
2017 const struct wined3d_device *device = context->swapchain->device;
2018
2019 switch (old_texture_type)
2020 {
2021 case GL_NONE:
2022 /* nothing to do */
2023 break;
2024 case GL_TEXTURE_2D:
2025 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D, device->dummy_texture_2d[unit]);
2026 checkGLcall("glBindTexture");
2027 break;
2028 case GL_TEXTURE_RECTANGLE_ARB:
2029 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_RECTANGLE_ARB, device->dummy_texture_rect[unit]);
2030 checkGLcall("glBindTexture");
2031 break;
2032 case GL_TEXTURE_CUBE_MAP:
2033 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, device->dummy_texture_cube[unit]);
2034 checkGLcall("glBindTexture");
2035 break;
2036 case GL_TEXTURE_3D:
2037 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_3D, device->dummy_texture_3d[unit]);
2038 checkGLcall("glBindTexture");
2039 break;
2040 default:
2041 ERR("Unexpected texture target %#x\n", old_texture_type);
2042 }
2043
2044 context->texture_type[unit] = target;
2045 }
2046 }
2047
2048 static void context_set_render_offscreen(struct wined3d_context *context, BOOL offscreen)
2049 {
2050 if (context->render_offscreen == offscreen) return;
2051
2052 context_invalidate_state(context, STATE_POINTSPRITECOORDORIGIN);
2053 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_PROJECTION));
2054 context_invalidate_state(context, STATE_VIEWPORT);
2055 context_invalidate_state(context, STATE_SCISSORRECT);
2056 context_invalidate_state(context, STATE_FRONTFACE);
2057 context->render_offscreen = offscreen;
2058 }
2059
2060 static BOOL match_depth_stencil_format(const struct wined3d_format *existing,
2061 const struct wined3d_format *required)
2062 {
2063 BYTE existing_depth, existing_stencil, required_depth, required_stencil;
2064
2065 if (existing == required) return TRUE;
2066 if ((existing->flags & WINED3DFMT_FLAG_FLOAT) != (required->flags & WINED3DFMT_FLAG_FLOAT)) return FALSE;
2067
2068 getDepthStencilBits(existing, &existing_depth, &existing_stencil);
2069 getDepthStencilBits(required, &required_depth, &required_stencil);
2070
2071 if(existing_depth < required_depth) return FALSE;
2072 /* If stencil bits are used the exact amount is required - otherwise wrapping
2073 * won't work correctly */
2074 if(required_stencil && required_stencil != existing_stencil) return FALSE;
2075 return TRUE;
2076 }
2077
2078 /* The caller provides a context */
2079 static void context_validate_onscreen_formats(struct wined3d_context *context,
2080 const struct wined3d_surface *depth_stencil)
2081 {
2082 /* Onscreen surfaces are always in a swapchain */
2083 struct wined3d_swapchain *swapchain = context->current_rt->swapchain;
2084
2085 if (context->render_offscreen || !depth_stencil) return;
2086 if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->resource.format)) return;
2087
2088 /* TODO: If the requested format would satisfy the needs of the existing one(reverse match),
2089 * or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new
2090 * format. */
2091 WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n");
2092
2093 /* The currently active context is the necessary context to access the swapchain's onscreen buffers */
2094 surface_load_location(context->current_rt, WINED3D_LOCATION_TEXTURE_RGB);
2095 swapchain->render_to_fbo = TRUE;
2096 swapchain_update_draw_bindings(swapchain);
2097 context_set_render_offscreen(context, TRUE);
2098 }
2099
2100 static DWORD context_generate_rt_mask_no_fbo(const struct wined3d_device *device, const struct wined3d_surface *rt)
2101 {
2102 if (!rt || rt->resource.format->id == WINED3DFMT_NULL)
2103 return 0;
2104 else if (rt->swapchain)
2105 return context_generate_rt_mask_from_surface(rt);
2106 else
2107 return context_generate_rt_mask(device->offscreenBuffer);
2108 }
2109
2110 /* Context activation is done by the caller. */
2111 void context_apply_blit_state(struct wined3d_context *context, const struct wined3d_device *device)
2112 {
2113 struct wined3d_surface *rt = context->current_rt;
2114 DWORD rt_mask, *cur_mask;
2115
2116 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2117 {
2118 context_validate_onscreen_formats(context, NULL);
2119
2120 if (context->render_offscreen)
2121 {
2122 wined3d_texture_load(rt->container, context, FALSE);
2123
2124 context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, rt, NULL, rt->draw_binding);
2125 if (rt->resource.format->id != WINED3DFMT_NULL)
2126 rt_mask = 1;
2127 else
2128 rt_mask = 0;
2129 }
2130 else
2131 {
2132 context->current_fbo = NULL;
2133 context_bind_fbo(context, GL_FRAMEBUFFER, 0);
2134 rt_mask = context_generate_rt_mask_from_surface(rt);
2135 }
2136 }
2137 else
2138 {
2139 rt_mask = context_generate_rt_mask_no_fbo(device, rt);
2140 }
2141
2142 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2143
2144 if (rt_mask != *cur_mask)
2145 {
2146 context_apply_draw_buffers(context, rt_mask);
2147 *cur_mask = rt_mask;
2148 }
2149
2150 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2151 {
2152 context_check_fbo_status(context, GL_FRAMEBUFFER);
2153 }
2154
2155 SetupForBlit(device, context);
2156 context_invalidate_state(context, STATE_FRAMEBUFFER);
2157 }
2158
2159 static BOOL context_validate_rt_config(UINT rt_count,
2160 struct wined3d_surface * const *rts, const struct wined3d_surface *ds)
2161 {
2162 unsigned int i;
2163
2164 if (ds) return TRUE;
2165
2166 for (i = 0; i < rt_count; ++i)
2167 {
2168 if (rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL)
2169 return TRUE;
2170 }
2171
2172 WARN("Invalid render target config, need at least one attachment.\n");
2173 return FALSE;
2174 }
2175
2176 /* Context activation is done by the caller. */
2177 BOOL context_apply_clear_state(struct wined3d_context *context, const struct wined3d_device *device,
2178 UINT rt_count, const struct wined3d_fb_state *fb)
2179 {
2180 const struct wined3d_gl_info *gl_info = context->gl_info;
2181 DWORD rt_mask = 0, *cur_mask;
2182 UINT i;
2183 struct wined3d_surface **rts = fb->render_targets;
2184
2185 if (isStateDirty(context, STATE_FRAMEBUFFER) || fb != &device->fb
2186 || rt_count != context->gl_info->limits.buffers)
2187 {
2188 if (!context_validate_rt_config(rt_count, rts, fb->depth_stencil))
2189 return FALSE;
2190
2191 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2192 {
2193 context_validate_onscreen_formats(context, fb->depth_stencil);
2194
2195 if (!rt_count || surface_is_offscreen(rts[0]))
2196 {
2197 for (i = 0; i < rt_count; ++i)
2198 {
2199 context->blit_targets[i] = rts[i];
2200 if (rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL)
2201 rt_mask |= (1 << i);
2202 }
2203 while (i < context->gl_info->limits.buffers)
2204 {
2205 context->blit_targets[i] = NULL;
2206 ++i;
2207 }
2208 context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets, fb->depth_stencil,
2209 rt_count ? rts[0]->draw_binding : WINED3D_LOCATION_TEXTURE_RGB);
2210 }
2211 else
2212 {
2213 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, WINED3D_LOCATION_DRAWABLE);
2214 rt_mask = context_generate_rt_mask_from_surface(rts[0]);
2215 }
2216
2217 /* If the framebuffer is not the device's fb the device's fb has to be reapplied
2218 * next draw. Otherwise we could mark the framebuffer state clean here, once the
2219 * state management allows this */
2220 context_invalidate_state(context, STATE_FRAMEBUFFER);
2221 }
2222 else
2223 {
2224 rt_mask = context_generate_rt_mask_no_fbo(device, rt_count ? rts[0] : NULL);
2225 }
2226 }
2227 else if (wined3d_settings.offscreen_rendering_mode == ORM_FBO
2228 && (!rt_count || surface_is_offscreen(rts[0])))
2229 {
2230 for (i = 0; i < rt_count; ++i)
2231 {
2232 if (rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL) rt_mask |= (1 << i);
2233 }
2234 }
2235 else
2236 {
2237 rt_mask = context_generate_rt_mask_no_fbo(device, rt_count ? rts[0] : NULL);
2238 }
2239
2240 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2241
2242 if (rt_mask != *cur_mask)
2243 {
2244 context_apply_draw_buffers(context, rt_mask);
2245 *cur_mask = rt_mask;
2246 context_invalidate_state(context, STATE_FRAMEBUFFER);
2247 }
2248
2249 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2250 {
2251 context_check_fbo_status(context, GL_FRAMEBUFFER);
2252 }
2253
2254 if (context->last_was_blit)
2255 context->last_was_blit = FALSE;
2256
2257 /* Blending and clearing should be orthogonal, but tests on the nvidia
2258 * driver show that disabling blending when clearing improves the clearing
2259 * performance incredibly. */
2260 gl_info->gl_ops.gl.p_glDisable(GL_BLEND);
2261 gl_info->gl_ops.gl.p_glEnable(GL_SCISSOR_TEST);
2262 checkGLcall("glEnable GL_SCISSOR_TEST");
2263
2264 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
2265 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
2266 context_invalidate_state(context, STATE_SCISSORRECT);
2267
2268 return TRUE;
2269 }
2270
2271 static DWORD find_draw_buffers_mask(const struct wined3d_context *context, const struct wined3d_device *device)
2272 {
2273 const struct wined3d_state *state = &device->state;
2274 struct wined3d_surface **rts = state->fb->render_targets;
2275 struct wined3d_shader *ps = state->shader[WINED3D_SHADER_TYPE_PIXEL];
2276 DWORD rt_mask, rt_mask_bits;
2277 unsigned int i;
2278
2279 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO) return context_generate_rt_mask_no_fbo(device, rts[0]);
2280 else if (!context->render_offscreen) return context_generate_rt_mask_from_surface(rts[0]);
2281
2282 rt_mask = ps ? ps->reg_maps.rt_mask : 1;
2283 rt_mask &= context->d3d_info->valid_rt_mask;
2284 rt_mask_bits = rt_mask;
2285 i = 0;
2286 while (rt_mask_bits)
2287 {
2288 rt_mask_bits &= ~(1 << i);
2289 if (!rts[i] || rts[i]->resource.format->id == WINED3DFMT_NULL)
2290 rt_mask &= ~(1 << i);
2291
2292 i++;
2293 }
2294
2295 return rt_mask;
2296 }
2297
2298 /* Context activation is done by the caller. */
2299 void context_state_fb(struct wined3d_context *context, const struct wined3d_state *state, DWORD state_id)
2300 {
2301 const struct wined3d_device *device = context->swapchain->device;
2302 const struct wined3d_fb_state *fb = state->fb;
2303 DWORD rt_mask = find_draw_buffers_mask(context, device);
2304 DWORD *cur_mask;
2305
2306 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2307 {
2308 if (!context->render_offscreen)
2309 {
2310 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, WINED3D_LOCATION_DRAWABLE);
2311 }
2312 else
2313 {
2314 context_apply_fbo_state(context, GL_FRAMEBUFFER, fb->render_targets, fb->depth_stencil,
2315 fb->render_targets[0]->draw_binding);
2316 }
2317 }
2318
2319 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2320 if (rt_mask != *cur_mask)
2321 {
2322 context_apply_draw_buffers(context, rt_mask);
2323 *cur_mask = rt_mask;
2324 }
2325 }
2326
2327 static void context_map_stage(struct wined3d_context *context, DWORD stage, DWORD unit)
2328 {
2329 DWORD i = context->rev_tex_unit_map[unit];
2330 DWORD j = context->tex_unit_map[stage];
2331
2332 context->tex_unit_map[stage] = unit;
2333 if (i != WINED3D_UNMAPPED_STAGE && i != stage)
2334 context->tex_unit_map[i] = WINED3D_UNMAPPED_STAGE;
2335
2336 context->rev_tex_unit_map[unit] = stage;
2337 if (j != WINED3D_UNMAPPED_STAGE && j != unit)
2338 context->rev_tex_unit_map[j] = WINED3D_UNMAPPED_STAGE;
2339 }
2340
2341 static void context_invalidate_texture_stage(struct wined3d_context *context, DWORD stage)
2342 {
2343 DWORD i;
2344
2345 for (i = 0; i <= WINED3D_HIGHEST_TEXTURE_STATE; ++i)
2346 context_invalidate_state(context, STATE_TEXTURESTAGE(stage, i));
2347 }
2348
2349 static void context_update_fixed_function_usage_map(struct wined3d_context *context,
2350 const struct wined3d_state *state)
2351 {
2352 UINT i, start, end;
2353
2354 context->fixed_function_usage_map = 0;
2355 for (i = 0; i < MAX_TEXTURES; ++i)
2356 {
2357 enum wined3d_texture_op color_op = state->texture_states[i][WINED3D_TSS_COLOR_OP];
2358 enum wined3d_texture_op alpha_op = state->texture_states[i][WINED3D_TSS_ALPHA_OP];
2359 DWORD color_arg1 = state->texture_states[i][WINED3D_TSS_COLOR_ARG1] & WINED3DTA_SELECTMASK;
2360 DWORD color_arg2 = state->texture_states[i][WINED3D_TSS_COLOR_ARG2] & WINED3DTA_SELECTMASK;
2361 DWORD color_arg3 = state->texture_states[i][WINED3D_TSS_COLOR_ARG0] & WINED3DTA_SELECTMASK;
2362 DWORD alpha_arg1 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG1] & WINED3DTA_SELECTMASK;
2363 DWORD alpha_arg2 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG2] & WINED3DTA_SELECTMASK;
2364 DWORD alpha_arg3 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG0] & WINED3DTA_SELECTMASK;
2365
2366 /* Not used, and disable higher stages. */
2367 if (color_op == WINED3D_TOP_DISABLE)
2368 break;
2369
2370 if (((color_arg1 == WINED3DTA_TEXTURE) && color_op != WINED3D_TOP_SELECT_ARG2)
2371 || ((color_arg2 == WINED3DTA_TEXTURE) && color_op != WINED3D_TOP_SELECT_ARG1)
2372 || ((color_arg3 == WINED3DTA_TEXTURE)
2373 && (color_op == WINED3D_TOP_MULTIPLY_ADD || color_op == WINED3D_TOP_LERP))
2374 || ((alpha_arg1 == WINED3DTA_TEXTURE) && alpha_op != WINED3D_TOP_SELECT_ARG2)
2375 || ((alpha_arg2 == WINED3DTA_TEXTURE) && alpha_op != WINED3D_TOP_SELECT_ARG1)
2376 || ((alpha_arg3 == WINED3DTA_TEXTURE)
2377 && (alpha_op == WINED3D_TOP_MULTIPLY_ADD || alpha_op == WINED3D_TOP_LERP)))
2378 context->fixed_function_usage_map |= (1 << i);
2379
2380 if ((color_op == WINED3D_TOP_BUMPENVMAP || color_op == WINED3D_TOP_BUMPENVMAP_LUMINANCE)
2381 && i < MAX_TEXTURES - 1)
2382 context->fixed_function_usage_map |= (1 << (i + 1));
2383 }
2384
2385 if (i < context->lowest_disabled_stage)
2386 {
2387 start = i;
2388 end = context->lowest_disabled_stage;
2389 }
2390 else
2391 {
2392 start = context->lowest_disabled_stage;
2393 end = i;
2394 }
2395
2396 context->lowest_disabled_stage = i;
2397 for (i = start + 1; i < end; ++i)
2398 {
2399 context_invalidate_state(context, STATE_TEXTURESTAGE(i, WINED3D_TSS_COLOR_OP));
2400 }
2401 }
2402
2403 static void context_map_fixed_function_samplers(struct wined3d_context *context,
2404 const struct wined3d_state *state)
2405 {
2406 unsigned int i, tex;
2407 WORD ffu_map;
2408 const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2409
2410 context_update_fixed_function_usage_map(context, state);
2411 ffu_map = context->fixed_function_usage_map;
2412
2413 if (d3d_info->limits.ffp_textures == d3d_info->limits.ffp_blend_stages
2414 || context->lowest_disabled_stage <= d3d_info->limits.ffp_textures)
2415 {
2416 for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2417 {
2418 if (!(ffu_map & 1))
2419 continue;
2420
2421 if (context->tex_unit_map[i] != i)
2422 {
2423 context_map_stage(context, i, i);
2424 context_invalidate_state(context, STATE_SAMPLER(i));
2425 context_invalidate_texture_stage(context, i);
2426 }
2427 }
2428 return;
2429 }
2430
2431 /* Now work out the mapping */
2432 tex = 0;
2433 for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2434 {
2435 if (!(ffu_map & 1))
2436 continue;
2437
2438 if (context->tex_unit_map[i] != tex)
2439 {
2440 context_map_stage(context, i, tex);
2441 context_invalidate_state(context, STATE_SAMPLER(i));
2442 context_invalidate_texture_stage(context, i);
2443 }
2444
2445 ++tex;
2446 }
2447 }
2448
2449 static void context_map_psamplers(struct wined3d_context *context, const struct wined3d_state *state)
2450 {
2451 const enum wined3d_sampler_texture_type *sampler_type =
2452 state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.sampler_type;
2453 unsigned int i;
2454 const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2455
2456 for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i)
2457 {
2458 if (sampler_type[i] && context->tex_unit_map[i] != i)
2459 {
2460 context_map_stage(context, i, i);
2461 context_invalidate_state(context, STATE_SAMPLER(i));
2462 if (i < d3d_info->limits.ffp_blend_stages)
2463 context_invalidate_texture_stage(context, i);
2464 }
2465 }
2466 }
2467
2468 static BOOL context_unit_free_for_vs(const struct wined3d_context *context,
2469 const enum wined3d_sampler_texture_type *pshader_sampler_tokens,
2470 const enum wined3d_sampler_texture_type *vshader_sampler_tokens, DWORD unit)
2471 {
2472 DWORD current_mapping = context->rev_tex_unit_map[unit];
2473
2474 /* Not currently used */
2475 if (current_mapping == WINED3D_UNMAPPED_STAGE)
2476 return TRUE;
2477
2478 if (current_mapping < MAX_FRAGMENT_SAMPLERS)
2479 {
2480 /* Used by a fragment sampler */
2481
2482 if (!pshader_sampler_tokens)
2483 {
2484 /* No pixel shader, check fixed function */
2485 return current_mapping >= MAX_TEXTURES || !(context->fixed_function_usage_map & (1 << current_mapping));
2486 }
2487
2488 /* Pixel shader, check the shader's sampler map */
2489 return !pshader_sampler_tokens[current_mapping];
2490 }
2491
2492 /* Used by a vertex sampler */
2493 return !vshader_sampler_tokens[current_mapping - MAX_FRAGMENT_SAMPLERS];
2494 }
2495
2496 static void context_map_vsamplers(struct wined3d_context *context, BOOL ps, const struct wined3d_state *state)
2497 {
2498 const enum wined3d_sampler_texture_type *vshader_sampler_type =
2499 state->shader[WINED3D_SHADER_TYPE_VERTEX]->reg_maps.sampler_type;
2500 const enum wined3d_sampler_texture_type *pshader_sampler_type = NULL;
2501 const struct wined3d_gl_info *gl_info = context->gl_info;
2502 int start = min(MAX_COMBINED_SAMPLERS, gl_info->limits.combined_samplers) - 1;
2503 int i;
2504
2505 if (ps)
2506 {
2507 /* Note that we only care if a sampler is sampled or not, not the sampler's specific type.
2508 * Otherwise we'd need to call shader_update_samplers() here for 1.x pixelshaders. */
2509 pshader_sampler_type = state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.sampler_type;
2510 }
2511
2512 for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i) {
2513 DWORD vsampler_idx = i + MAX_FRAGMENT_SAMPLERS;
2514 if (vshader_sampler_type[i])
2515 {
2516 if (context->tex_unit_map[vsampler_idx] != WINED3D_UNMAPPED_STAGE)
2517 {
2518 /* Already mapped somewhere */
2519 continue;
2520 }
2521
2522 while (start >= 0)
2523 {
2524 if (context_unit_free_for_vs(context, pshader_sampler_type, vshader_sampler_type, start))
2525 {
2526 context_map_stage(context, vsampler_idx, start);
2527 context_invalidate_state(context, STATE_SAMPLER(vsampler_idx));
2528
2529 --start;
2530 break;
2531 }
2532
2533 --start;
2534 }
2535 }
2536 }
2537 }
2538
2539 static void context_update_tex_unit_map(struct wined3d_context *context, const struct wined3d_state *state)
2540 {
2541 BOOL vs = use_vs(state);
2542 BOOL ps = use_ps(state);
2543 /*
2544 * Rules are:
2545 * -> Pixel shaders need a 1:1 map. In theory the shader input could be mapped too, but
2546 * that would be really messy and require shader recompilation
2547 * -> When the mapping of a stage is changed, sampler and ALL texture stage states have
2548 * to be reset. Because of that try to work with a 1:1 mapping as much as possible
2549 */
2550 if (ps)
2551 context_map_psamplers(context, state);
2552 else
2553 context_map_fixed_function_samplers(context, state);
2554
2555 if (vs)
2556 context_map_vsamplers(context, ps, state);
2557 }
2558
2559 /* Context activation is done by the caller. */
2560 void context_state_drawbuf(struct wined3d_context *context, const struct wined3d_state *state, DWORD state_id)
2561 {
2562 const struct wined3d_device *device = context->swapchain->device;
2563 DWORD rt_mask, *cur_mask;
2564
2565 if (isStateDirty(context, STATE_FRAMEBUFFER)) return;
2566
2567 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2568 rt_mask = find_draw_buffers_mask(context, device);
2569 if (rt_mask != *cur_mask)
2570 {
2571 context_apply_draw_buffers(context, rt_mask);
2572 *cur_mask = rt_mask;
2573 }
2574 }
2575
2576 static BOOL fixed_get_input(BYTE usage, BYTE usage_idx, unsigned int *regnum)
2577 {
2578 if ((usage == WINED3D_DECL_USAGE_POSITION || usage == WINED3D_DECL_USAGE_POSITIONT) && !usage_idx)
2579 *regnum = WINED3D_FFP_POSITION;
2580 else if (usage == WINED3D_DECL_USAGE_BLEND_WEIGHT && !usage_idx)
2581 *regnum = WINED3D_FFP_BLENDWEIGHT;
2582 else if (usage == WINED3D_DECL_USAGE_BLEND_INDICES && !usage_idx)
2583 *regnum = WINED3D_FFP_BLENDINDICES;
2584 else if (usage == WINED3D_DECL_USAGE_NORMAL && !usage_idx)
2585 *regnum = WINED3D_FFP_NORMAL;
2586 else if (usage == WINED3D_DECL_USAGE_PSIZE && !usage_idx)
2587 *regnum = WINED3D_FFP_PSIZE;
2588 else if (usage == WINED3D_DECL_USAGE_COLOR && !usage_idx)
2589 *regnum = WINED3D_FFP_DIFFUSE;
2590 else if (usage == WINED3D_DECL_USAGE_COLOR && usage_idx == 1)
2591 *regnum = WINED3D_FFP_SPECULAR;
2592 else if (usage == WINED3D_DECL_USAGE_TEXCOORD && usage_idx < WINED3DDP_MAXTEXCOORD)
2593 *regnum = WINED3D_FFP_TEXCOORD0 + usage_idx;
2594 else
2595 {
2596 FIXME("Unsupported input stream [usage=%s, usage_idx=%u].\n", debug_d3ddeclusage(usage), usage_idx);
2597 *regnum = ~0U;
2598 return FALSE;
2599 }
2600
2601 return TRUE;
2602 }
2603
2604 /* FIXME: Separate buffer loading from declaration decoding */
2605 /* Context activation is done by the caller. */
2606 void context_stream_info_from_declaration(struct wined3d_context *context,
2607 const struct wined3d_state *state, struct wined3d_stream_info *stream_info)
2608 {
2609 /* We need to deal with frequency data! */
2610 struct wined3d_vertex_declaration *declaration = state->vertex_declaration;
2611 BOOL use_vshader = use_vs(state);
2612 unsigned int i;
2613 WORD map;
2614
2615 stream_info->use_map = 0;
2616 stream_info->swizzle_map = 0;
2617 stream_info->all_vbo = 1;
2618 stream_info->position_transformed = declaration->position_transformed;
2619
2620 /* Translate the declaration into strided data. */
2621 for (i = 0; i < declaration->element_count; ++i)
2622 {
2623 const struct wined3d_vertex_declaration_element *element = &declaration->elements[i];
2624 const struct wined3d_stream_state *stream = &state->streams[element->input_slot];
2625 struct wined3d_buffer *buffer = stream->buffer;
2626 struct wined3d_bo_address data;
2627 BOOL stride_used;
2628 unsigned int idx;
2629 DWORD stride;
2630
2631 TRACE("%p Element %p (%u of %u).\n", declaration->elements,
2632 element, i + 1, declaration->element_count);
2633
2634 if (!buffer) continue;
2635
2636 stride = stream->stride;
2637 TRACE("Stream %u in buffer %p.\n", element->input_slot, buffer);
2638 buffer_get_memory(buffer, context, &data);
2639
2640 /* Can't use vbo's if the base vertex index is negative. OpenGL doesn't accept negative offsets
2641 * (or rather offsets bigger than the vbo, because the pointer is unsigned), so use system memory
2642 * sources. In most sane cases the pointer - offset will still be > 0, otherwise it will wrap
2643 * around to some big value. Hope that with the indices, the driver wraps it back internally. If
2644 * not, drawStridedSlow is needed, including a vertex buffer path. */
2645 if (state->load_base_vertex_index < 0)
2646 {
2647 WARN_(d3d_perf)("load_base_vertex_index is < 0 (%d), not using VBOs.\n",
2648 state->load_base_vertex_index);
2649 data.buffer_object = 0;
2650 data.addr = buffer_get_sysmem(buffer, context);
2651 if ((UINT_PTR)data.addr < -state->load_base_vertex_index * stride)
2652 {
2653 FIXME("System memory vertex data load offset is negative!\n");
2654 }
2655 }
2656 data.addr += element->offset;
2657
2658 TRACE("offset %u input_slot %u usage_idx %d.\n", element->offset, element->input_slot, element->usage_idx);
2659
2660 if (use_vshader)
2661 {
2662 if (element->output_slot == ~0U)
2663 {
2664 /* TODO: Assuming vertexdeclarations are usually used with the
2665 * same or a similar shader, it might be worth it to store the
2666 * last used output slot and try that one first. */
2667 stride_used = vshader_get_input(state->shader[WINED3D_SHADER_TYPE_VERTEX],
2668 element->usage, element->usage_idx, &idx);
2669 }
2670 else
2671 {
2672 idx = element->output_slot;
2673 stride_used = TRUE;
2674 }
2675 }
2676 else
2677 {
2678 if (!element->ffp_valid)
2679 {
2680 WARN("Skipping unsupported fixed function element of format %s and usage %s.\n",
2681 debug_d3dformat(element->format->id), debug_d3ddeclusage(element->usage));
2682 stride_used = FALSE;
2683 }
2684 else
2685 {
2686 stride_used = fixed_get_input(element->usage, element->usage_idx, &idx);
2687 }
2688 }
2689
2690 if (stride_used)
2691 {
2692 TRACE("Load %s array %u [usage %s, usage_idx %u, "
2693 "input_slot %u, offset %u, stride %u, format %s, buffer_object %u].\n",
2694 use_vshader ? "shader": "fixed function", idx,
2695 debug_d3ddeclusage(element->usage), element->usage_idx, element->input_slot,
2696 element->offset, stride, debug_d3dformat(element->format->id), data.buffer_object);
2697
2698 data.addr += stream->offset;
2699
2700 stream_info->elements[idx].format = element->format;
2701 stream_info->elements[idx].data = data;
2702 stream_info->elements[idx].stride = stride;
2703 stream_info->elements[idx].stream_idx = element->input_slot;
2704
2705 if (!context->gl_info->supported[ARB_VERTEX_ARRAY_BGRA]
2706 && element->format->id == WINED3DFMT_B8G8R8A8_UNORM)
2707 {
2708 stream_info->swizzle_map |= 1 << idx;
2709 }
2710 stream_info->use_map |= 1 << idx;
2711 }
2712 }
2713
2714 /* Preload the vertex buffers. */
2715 context->num_buffer_queries = 0;
2716 for (i = 0, map = stream_info->use_map; map; map >>= 1, ++i)
2717 {
2718 struct wined3d_stream_info_element *element;
2719 struct wined3d_buffer *buffer;
2720
2721 if (!(map & 1))
2722 continue;
2723
2724 element = &stream_info->elements[i];
2725 buffer = state->streams[element->stream_idx].buffer;
2726 buffer_internal_preload(buffer, context, state);
2727
2728 /* If the preload dropped the buffer object, update the stream info. */
2729 if (buffer->buffer_object != element->data.buffer_object)
2730 {
2731 element->data.buffer_object = 0;
2732 element->data.addr = buffer_get_sysmem(buffer, context)
2733 + (ptrdiff_t)element->data.addr;
2734 }
2735
2736 if (!buffer->buffer_object)
2737 stream_info->all_vbo = 0;
2738
2739 if (buffer->query)
2740 context->buffer_queries[context->num_buffer_queries++] = buffer->query;
2741 }
2742 }
2743
2744 /* Context activation is done by the caller. */
2745 static void context_update_stream_info(struct wined3d_context *context, const struct wined3d_state *state)
2746 {
2747 const struct wined3d_gl_info *gl_info = context->gl_info;
2748 const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2749 struct wined3d_stream_info *stream_info = &context->stream_info;
2750 DWORD prev_all_vbo = stream_info->all_vbo;
2751
2752 TRACE("============================= Vertex Declaration =============================\n");
2753 context_stream_info_from_declaration(context, state, stream_info);
2754
2755 if (use_vs(state))
2756 {
2757 if (state->vertex_declaration->half_float_conv_needed && !stream_info->all_vbo)
2758 {
2759 TRACE("Using drawStridedSlow with vertex shaders for FLOAT16 conversion.\n");
2760 context->use_immediate_mode_draw = TRUE;
2761 }
2762 else
2763 {
2764 context->use_immediate_mode_draw = FALSE;
2765 }
2766 }
2767 else
2768 {
2769 WORD slow_mask = (1 << WINED3D_FFP_PSIZE);
2770 slow_mask |= -!gl_info->supported[ARB_VERTEX_ARRAY_BGRA]
2771 & ((1 << WINED3D_FFP_DIFFUSE) | (1 << WINED3D_FFP_SPECULAR));
2772
2773 if (((stream_info->position_transformed && !d3d_info->xyzrhw)
2774 || (stream_info->use_map & slow_mask)) && !stream_info->all_vbo)
2775 context->use_immediate_mode_draw = TRUE;
2776 else
2777 context->use_immediate_mode_draw = FALSE;
2778 }
2779
2780 if (prev_all_vbo != stream_info->all_vbo)
2781 context_invalidate_state(context, STATE_INDEXBUFFER);
2782 }
2783
2784 /* Context activation is done by the caller. */
2785 static void context_preload_texture(struct wined3d_context *context,
2786 const struct wined3d_state *state, unsigned int idx)
2787 {
2788 struct wined3d_texture *texture;
2789
2790 if (!(texture = state->textures[idx]))
2791 return;
2792
2793 wined3d_texture_load(texture, context, state->sampler_states[idx][WINED3D_SAMP_SRGB_TEXTURE]);
2794 }
2795
2796 /* Context activation is done by the caller. */
2797 static void context_preload_textures(struct wined3d_context *context, const struct wined3d_state *state)
2798 {
2799 unsigned int i;
2800
2801 if (use_vs(state))
2802 {
2803 for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i)
2804 {
2805 if (state->shader[WINED3D_SHADER_TYPE_VERTEX]->reg_maps.sampler_type[i])
2806 context_preload_texture(context, state, MAX_FRAGMENT_SAMPLERS + i);
2807 }
2808 }
2809
2810 if (use_ps(state))
2811 {
2812 for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i)
2813 {
2814 if (state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.sampler_type[i])
2815 context_preload_texture(context, state, i);
2816 }
2817 }
2818 else
2819 {
2820 WORD ffu_map = context->fixed_function_usage_map;
2821
2822 for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2823 {
2824 if (ffu_map & 1)
2825 context_preload_texture(context, state, i);
2826 }
2827 }
2828 }
2829
2830 /* Context activation is done by the caller. */
2831 BOOL context_apply_draw_state(struct wined3d_context *context, struct wined3d_device *device)
2832 {
2833 const struct wined3d_state *state = &device->state;
2834 const struct StateEntry *state_table = context->state_table;
2835 const struct wined3d_fb_state *fb = state->fb;
2836 unsigned int i;
2837
2838 if (!context_validate_rt_config(context->gl_info->limits.buffers,
2839 fb->render_targets, fb->depth_stencil))
2840 return FALSE;
2841
2842 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO && isStateDirty(context, STATE_FRAMEBUFFER))
2843 {
2844 context_validate_onscreen_formats(context, fb->depth_stencil);
2845 }
2846
2847 /* Preload resources before FBO setup. Texture preload in particular may
2848 * result in changes to the current FBO, due to using e.g. FBO blits for
2849 * updating a resource location. */
2850 context_update_tex_unit_map(context, state);
2851 context_preload_textures(context, state);
2852 if (isStateDirty(context, STATE_VDECL) || isStateDirty(context, STATE_STREAMSRC))
2853 context_update_stream_info(context, state);
2854 if (state->index_buffer)
2855 {
2856 if (context->stream_info.all_vbo)
2857 buffer_internal_preload(state->index_buffer, context, state);
2858 else
2859 buffer_get_sysmem(state->index_buffer, context);
2860 }
2861
2862 for (i = 0; i < context->numDirtyEntries; ++i)
2863 {
2864 DWORD rep = context->dirtyArray[i];
2865 DWORD idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
2866 BYTE shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
2867 context->isStateDirty[idx] &= ~(1 << shift);
2868 state_table[rep].apply(context, state, rep);
2869 }
2870
2871 if (context->shader_update_mask)
2872 {
2873 device->shader_backend->shader_select(device->shader_priv, context, state);
2874 context->shader_update_mask = 0;
2875 }
2876
2877 if (context->constant_update_mask)
2878 {
2879 device->shader_backend->shader_load_constants(device->shader_priv, context, state);
2880 context->constant_update_mask = 0;
2881 }
2882
2883 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2884 {
2885 context_check_fbo_status(context, GL_FRAMEBUFFER);
2886 }
2887
2888 context->numDirtyEntries = 0; /* This makes the whole list clean */
2889 context->last_was_blit = FALSE;
2890
2891 return TRUE;
2892 }
2893
2894 static void context_setup_target(struct wined3d_context *context, struct wined3d_surface *target)
2895 {
2896 BOOL old_render_offscreen = context->render_offscreen, render_offscreen;
2897
2898 render_offscreen = surface_is_offscreen(target);
2899 if (context->current_rt == target && render_offscreen == old_render_offscreen) return;
2900
2901 /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
2902 * the alpha blend state changes with different render target formats. */
2903 if (!context->current_rt)
2904 {
2905 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
2906 }
2907 else
2908 {
2909 const struct wined3d_format *old = context->current_rt->resource.format;
2910 const struct wined3d_format *new = target->resource.format;
2911
2912 if (old->id != new->id)
2913 {
2914 /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
2915 if ((old->alpha_size && !new->alpha_size) || (!old->alpha_size && new->alpha_size)
2916 || !(new->flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING))
2917 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
2918
2919 /* Update sRGB writing when switching between formats that do/do not support sRGB writing */
2920 if ((old->flags & WINED3DFMT_FLAG_SRGB_WRITE) != (new->flags & WINED3DFMT_FLAG_SRGB_WRITE))
2921 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SRGBWRITEENABLE));
2922 }
2923
2924 /* When switching away from an offscreen render target, and we're not
2925 * using FBOs, we have to read the drawable into the texture. This is
2926 * done via PreLoad (and WINED3D_LOCATION_DRAWABLE set on the surface).
2927 * There are some things that need care though. PreLoad needs a GL context,
2928 * and FindContext is called before the context is activated. It also
2929 * has to be called with the old rendertarget active, otherwise a
2930 * wrong drawable is read. */
2931 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
2932 && old_render_offscreen && context->current_rt != target)
2933 {
2934 struct wined3d_texture *texture = context->current_rt->container;
2935
2936 /* Read the back buffer of the old drawable into the destination texture. */
2937 if (texture->texture_srgb.name)
2938 wined3d_texture_load(texture, context, TRUE);
2939 wined3d_texture_load(texture, context, FALSE);
2940 surface_invalidate_location(context->current_rt, WINED3D_LOCATION_DRAWABLE);
2941 }
2942 }
2943
2944 context->current_rt = target;
2945 context_set_render_offscreen(context, render_offscreen);
2946 }
2947
2948 struct wined3d_context *context_acquire(const struct wined3d_device *device, struct wined3d_surface *target)
2949 {
2950 struct wined3d_context *current_context = context_get_current();
2951 struct wined3d_context *context;
2952
2953 TRACE("device %p, target %p.\n", device, target);
2954
2955 if (current_context && current_context->destroyed)
2956 current_context = NULL;
2957
2958 if (!target)
2959 {
2960 if (current_context
2961 && current_context->current_rt
2962 && current_context->swapchain->device == device)
2963 {
2964 target = current_context->current_rt;
2965 }
2966 else
2967 {
2968 struct wined3d_swapchain *swapchain = device->swapchains[0];
2969 if (swapchain->back_buffers)
2970 target = swapchain->back_buffers[0];
2971 else
2972 target = swapchain->front_buffer;
2973 }
2974 }
2975
2976 if (current_context && current_context->current_rt == target)
2977 {
2978 context = current_context;
2979 }
2980 else if (target->swapchain)
2981 {
2982 TRACE("Rendering onscreen.\n");
2983
2984 context = swapchain_get_context(target->swapchain);
2985 }
2986 else
2987 {
2988 TRACE("Rendering offscreen.\n");
2989
2990 /* Stay with the current context if possible. Otherwise use the
2991 * context for the primary swapchain. */
2992 if (current_context && current_context->swapchain->device == device)
2993 context = current_context;
2994 else
2995 context = swapchain_get_context(device->swapchains[0]);
2996 }
2997
2998 context_enter(context);
2999 context_update_window(context);
3000 context_setup_target(context, target);
3001 if (!context->valid) return context;
3002
3003 if (context != current_context)
3004 {
3005 if (!context_set_current(context))
3006 ERR("Failed to activate the new context.\n");
3007 }
3008 else if (context->needs_set)
3009 {
3010 context_set_gl_context(context);
3011 }
3012
3013 return context;
3014 }
Maarten's multimedia branch