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d3d10core: Create wined3d views for shader resource views.
[wine.git] / dlls / wined3d / context.c
blob693267eefd21b79e489f3a257d398113b75c7075
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 /* Context activation is done by the caller. */
618 void context_alloc_timestamp_query(struct wined3d_context *context, struct wined3d_timestamp_query *query)
619 {
620 const struct wined3d_gl_info *gl_info = context->gl_info;
621
622 if (context->free_timestamp_query_count)
623 {
624 query->id = context->free_timestamp_queries[--context->free_timestamp_query_count];
625 }
626 else
627 {
628 GL_EXTCALL(glGenQueriesARB(1, &query->id));
629 checkGLcall("glGenQueriesARB");
630
631 TRACE("Allocated timestamp query %u in context %p.\n", query->id, context);
632 }
633
634 query->context = context;
635 list_add_head(&context->timestamp_queries, &query->entry);
636 }
637
638 void context_free_timestamp_query(struct wined3d_timestamp_query *query)
639 {
640 struct wined3d_context *context = query->context;
641
642 list_remove(&query->entry);
643 query->context = NULL;
644
645 if (context->free_timestamp_query_count >= context->free_timestamp_query_size - 1)
646 {
647 UINT new_size = context->free_timestamp_query_size << 1;
648 GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_timestamp_queries,
649 new_size * sizeof(*context->free_timestamp_queries));
650
651 if (!new_data)
652 {
653 ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
654 return;
655 }
656
657 context->free_timestamp_query_size = new_size;
658 context->free_timestamp_queries = new_data;
659 }
660
661 context->free_timestamp_queries[context->free_timestamp_query_count++] = query->id;
662 }
663
664 typedef void (context_fbo_entry_func_t)(struct wined3d_context *context, struct fbo_entry *entry);
665
666 static void context_enum_surface_fbo_entries(const struct wined3d_device *device,
667 const struct wined3d_surface *surface, context_fbo_entry_func_t *callback)
668 {
669 UINT i;
670
671 for (i = 0; i < device->context_count; ++i)
672 {
673 struct wined3d_context *context = device->contexts[i];
674 const struct wined3d_gl_info *gl_info = context->gl_info;
675 struct fbo_entry *entry, *entry2;
676
677 if (context->current_rt == surface) context->current_rt = NULL;
678
679 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
680 {
681 UINT j;
682
683 if (entry->depth_stencil == surface)
684 {
685 callback(context, entry);
686 continue;
687 }
688
689 for (j = 0; j < gl_info->limits.buffers; ++j)
690 {
691 if (entry->render_targets[j] == surface)
692 {
693 callback(context, entry);
694 break;
695 }
696 }
697 }
698 }
699 }
700
701 static void context_queue_fbo_entry_destruction(struct wined3d_context *context, struct fbo_entry *entry)
702 {
703 list_remove(&entry->entry);
704 list_add_head(&context->fbo_destroy_list, &entry->entry);
705 }
706
707 void context_resource_released(const struct wined3d_device *device,
708 struct wined3d_resource *resource, enum wined3d_resource_type type)
709 {
710 if (!device->d3d_initialized) return;
711
712 switch (type)
713 {
714 case WINED3D_RTYPE_SURFACE:
715 context_enum_surface_fbo_entries(device, surface_from_resource(resource),
716 context_queue_fbo_entry_destruction);
717 break;
718
719 default:
720 break;
721 }
722 }
723
724 static void context_detach_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
725 {
726 entry->attached = FALSE;
727 }
728
729 void context_resource_unloaded(const struct wined3d_device *device,
730 struct wined3d_resource *resource, enum wined3d_resource_type type)
731 {
732 switch (type)
733 {
734 case WINED3D_RTYPE_SURFACE:
735 context_enum_surface_fbo_entries(device, surface_from_resource(resource),
736 context_detach_fbo_entry);
737 break;
738
739 default:
740 break;
741 }
742 }
743
744 void context_surface_update(struct wined3d_context *context, const struct wined3d_surface *surface)
745 {
746 const struct wined3d_gl_info *gl_info = context->gl_info;
747 struct fbo_entry *entry = context->current_fbo;
748 unsigned int i;
749
750 if (!entry || context->rebind_fbo) return;
751
752 for (i = 0; i < gl_info->limits.buffers; ++i)
753 {
754 if (surface == entry->render_targets[i])
755 {
756 TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface, i);
757 context->rebind_fbo = TRUE;
758 return;
759 }
760 }
761
762 if (surface == entry->depth_stencil)
763 {
764 TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface);
765 context->rebind_fbo = TRUE;
766 }
767 }
768
769 static BOOL context_restore_pixel_format(struct wined3d_context *ctx)
770 {
771 const struct wined3d_gl_info *gl_info = ctx->gl_info;
772 BOOL ret = FALSE;
773
774 if (ctx->restore_pf && IsWindow(ctx->restore_pf_win))
775 {
776 if (ctx->gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
777 {
778 HDC dc = GetDC(ctx->restore_pf_win);
779 if (dc)
780 {
781 if (!(ret = GL_EXTCALL(wglSetPixelFormatWINE(dc, ctx->restore_pf))))
782 {
783 ERR("wglSetPixelFormatWINE failed to restore pixel format %d on window %p.\n",
784 ctx->restore_pf, ctx->restore_pf_win);
785 }
786 ReleaseDC(ctx->restore_pf_win, dc);
787 }
788 }
789 else
790 {
791 ERR("can't restore pixel format %d on window %p\n", ctx->restore_pf, ctx->restore_pf_win);
792 }
793 }
794
795 ctx->restore_pf = 0;
796 ctx->restore_pf_win = NULL;
797 return ret;
798 }
799
800 static BOOL context_set_pixel_format(struct wined3d_context *context, HDC dc, BOOL private, int format)
801 {
802 const struct wined3d_gl_info *gl_info = context->gl_info;
803 int current;
804
805 if (dc == context->hdc && context->hdc_is_private && context->hdc_has_format)
806 return TRUE;
807
808 current = GetPixelFormat(dc);
809 if (current == format) goto success;
810
811 if (!current)
812 {
813 if (!SetPixelFormat(dc, format, NULL))
814 {
815 /* This may also happen if the dc belongs to a destroyed window. */
816 WARN("Failed to set pixel format %d on device context %p, last error %#x.\n",
817 format, dc, GetLastError());
818 return FALSE;
819 }
820
821 context->restore_pf = 0;
822 context->restore_pf_win = private ? NULL : WindowFromDC(dc);
823 goto success;
824 }
825
826 /* By default WGL doesn't allow pixel format adjustments but we need it
827 * here. For this reason there's a Wine specific wglSetPixelFormat()
828 * which allows us to set the pixel format multiple times. Only use it
829 * when really needed. */
830 if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
831 {
832 HWND win;
833
834 if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format)))
835 {
836 ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
837 format, dc);
838 return FALSE;
839 }
840
841 win = private ? NULL : WindowFromDC(dc);
842 if (win != context->restore_pf_win)
843 {
844 context_restore_pixel_format(context);
845
846 context->restore_pf = private ? 0 : current;
847 context->restore_pf_win = win;
848 }
849
850 goto success;
851 }
852
853 /* OpenGL doesn't allow pixel format adjustments. Print an error and
854 * continue using the old format. There's a big chance that the old
855 * format works although with a performance hit and perhaps rendering
856 * errors. */
857 ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
858 format, dc, current);
859 return TRUE;
860
861 success:
862 if (dc == context->hdc && context->hdc_is_private)
863 context->hdc_has_format = TRUE;
864 return TRUE;
865 }
866
867 static BOOL context_set_gl_context(struct wined3d_context *ctx)
868 {
869 struct wined3d_swapchain *swapchain = ctx->swapchain;
870 BOOL backup = FALSE;
871
872 if (!context_set_pixel_format(ctx, ctx->hdc, ctx->hdc_is_private, ctx->pixel_format))
873 {
874 WARN("Failed to set pixel format %d on device context %p.\n",
875 ctx->pixel_format, ctx->hdc);
876 backup = TRUE;
877 }
878
879 if (backup || !wglMakeCurrent(ctx->hdc, ctx->glCtx))
880 {
881 HDC dc;
882
883 WARN("Failed to make GL context %p current on device context %p, last error %#x.\n",
884 ctx->glCtx, ctx->hdc, GetLastError());
885 ctx->valid = 0;
886 WARN("Trying fallback to the backup window.\n");
887
888 /* FIXME: If the context is destroyed it's no longer associated with
889 * a swapchain, so we can't use the swapchain to get a backup dc. To
890 * make this work windowless contexts would need to be handled by the
891 * device. */
892 if (ctx->destroyed)
893 {
894 FIXME("Unable to get backup dc for destroyed context %p.\n", ctx);
895 context_set_current(NULL);
896 return FALSE;
897 }
898
899 if (!(dc = swapchain_get_backup_dc(swapchain)))
900 {
901 context_set_current(NULL);
902 return FALSE;
903 }
904
905 if (!context_set_pixel_format(ctx, dc, TRUE, ctx->pixel_format))
906 {
907 ERR("Failed to set pixel format %d on device context %p.\n",
908 ctx->pixel_format, dc);
909 context_set_current(NULL);
910 return FALSE;
911 }
912
913 if (!wglMakeCurrent(dc, ctx->glCtx))
914 {
915 ERR("Fallback to backup window (dc %p) failed too, last error %#x.\n",
916 dc, GetLastError());
917 context_set_current(NULL);
918 return FALSE;
919 }
920
921 ctx->valid = 1;
922 }
923 ctx->needs_set = 0;
924 return TRUE;
925 }
926
927 static void context_restore_gl_context(const struct wined3d_gl_info *gl_info, HDC dc, HGLRC gl_ctx)
928 {
929 if (!wglMakeCurrent(dc, gl_ctx))
930 {
931 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
932 gl_ctx, dc, GetLastError());
933 context_set_current(NULL);
934 }
935 }
936
937 static void context_update_window(struct wined3d_context *context)
938 {
939 if (context->win_handle == context->swapchain->win_handle)
940 return;
941
942 TRACE("Updating context %p window from %p to %p.\n",
943 context, context->win_handle, context->swapchain->win_handle);
944
945 if (context->hdc)
946 wined3d_release_dc(context->win_handle, context->hdc);
947
948 context->win_handle = context->swapchain->win_handle;
949 context->hdc_is_private = FALSE;
950 context->hdc_has_format = FALSE;
951 context->needs_set = 1;
952 context->valid = 1;
953
954 if (!(context->hdc = GetDC(context->win_handle)))
955 {
956 ERR("Failed to get a device context for window %p.\n", context->win_handle);
957 context->valid = 0;
958 }
959 }
960
961 static void context_destroy_gl_resources(struct wined3d_context *context)
962 {
963 const struct wined3d_gl_info *gl_info = context->gl_info;
964 struct wined3d_timestamp_query *timestamp_query;
965 struct wined3d_occlusion_query *occlusion_query;
966 struct wined3d_event_query *event_query;
967 struct fbo_entry *entry, *entry2;
968 HGLRC restore_ctx;
969 HDC restore_dc;
970 unsigned int i;
971
972 restore_ctx = wglGetCurrentContext();
973 restore_dc = wglGetCurrentDC();
974
975 if (restore_ctx == context->glCtx)
976 restore_ctx = NULL;
977 else if (context->valid)
978 context_set_gl_context(context);
979
980 LIST_FOR_EACH_ENTRY(timestamp_query, &context->timestamp_queries, struct wined3d_timestamp_query, entry)
981 {
982 if (context->valid)
983 GL_EXTCALL(glDeleteQueriesARB(1, &timestamp_query->id));
984 timestamp_query->context = NULL;
985 }
986
987 LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry)
988 {
989 if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY])
990 GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query->id));
991 occlusion_query->context = NULL;
992 }
993
994 LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry)
995 {
996 if (context->valid)
997 {
998 if (gl_info->supported[ARB_SYNC])
999 {
1000 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
1001 }
1002 else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id));
1003 else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id));
1004 }
1005 event_query->context = NULL;
1006 }
1007
1008 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
1009 {
1010 if (!context->valid) entry->id = 0;
1011 context_destroy_fbo_entry(context, entry);
1012 }
1013
1014 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
1015 {
1016 if (!context->valid) entry->id = 0;
1017 context_destroy_fbo_entry(context, entry);
1018 }
1019
1020 if (context->valid)
1021 {
1022 if (context->dummy_arbfp_prog)
1023 {
1024 GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog));
1025 }
1026
1027 if (gl_info->supported[ARB_TIMER_QUERY])
1028 GL_EXTCALL(glDeleteQueriesARB(context->free_timestamp_query_count, context->free_timestamp_queries));
1029
1030 if (gl_info->supported[ARB_OCCLUSION_QUERY])
1031 GL_EXTCALL(glDeleteQueriesARB(context->free_occlusion_query_count, context->free_occlusion_queries));
1032
1033 if (gl_info->supported[ARB_SYNC])
1034 {
1035 for (i = 0; i < context->free_event_query_count; ++i)
1036 {
1037 GL_EXTCALL(glDeleteSync(context->free_event_queries[i].sync));
1038 }
1039 }
1040 else if (gl_info->supported[APPLE_FENCE])
1041 {
1042 for (i = 0; i < context->free_event_query_count; ++i)
1043 {
1044 GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id));
1045 }
1046 }
1047 else if (gl_info->supported[NV_FENCE])
1048 {
1049 for (i = 0; i < context->free_event_query_count; ++i)
1050 {
1051 GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id));
1052 }
1053 }
1054
1055 checkGLcall("context cleanup");
1056 }
1057
1058 HeapFree(GetProcessHeap(), 0, context->free_timestamp_queries);
1059 HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries);
1060 HeapFree(GetProcessHeap(), 0, context->free_event_queries);
1061
1062 context_restore_pixel_format(context);
1063 if (restore_ctx)
1064 {
1065 context_restore_gl_context(gl_info, restore_dc, restore_ctx);
1066 }
1067 else if (wglGetCurrentContext() && !wglMakeCurrent(NULL, NULL))
1068 {
1069 ERR("Failed to disable GL context.\n");
1070 }
1071
1072 wined3d_release_dc(context->win_handle, context->hdc);
1073
1074 if (!wglDeleteContext(context->glCtx))
1075 {
1076 DWORD err = GetLastError();
1077 ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err);
1078 }
1079 }
1080
1081 DWORD context_get_tls_idx(void)
1082 {
1083 return wined3d_context_tls_idx;
1084 }
1085
1086 void context_set_tls_idx(DWORD idx)
1087 {
1088 wined3d_context_tls_idx = idx;
1089 }
1090
1091 struct wined3d_context *context_get_current(void)
1092 {
1093 return TlsGetValue(wined3d_context_tls_idx);
1094 }
1095
1096 BOOL context_set_current(struct wined3d_context *ctx)
1097 {
1098 struct wined3d_context *old = context_get_current();
1099
1100 if (old == ctx)
1101 {
1102 TRACE("Already using D3D context %p.\n", ctx);
1103 return TRUE;
1104 }
1105
1106 if (old)
1107 {
1108 if (old->destroyed)
1109 {
1110 TRACE("Switching away from destroyed context %p.\n", old);
1111 context_destroy_gl_resources(old);
1112 HeapFree(GetProcessHeap(), 0, (void *)old->gl_info);
1113 HeapFree(GetProcessHeap(), 0, old);
1114 }
1115 else
1116 {
1117 old->current = 0;
1118 }
1119 }
1120
1121 if (ctx)
1122 {
1123 if (!ctx->valid)
1124 {
1125 ERR("Trying to make invalid context %p current\n", ctx);
1126 return FALSE;
1127 }
1128
1129 TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc);
1130 if (!context_set_gl_context(ctx))
1131 return FALSE;
1132 ctx->current = 1;
1133 }
1134 else if(wglGetCurrentContext())
1135 {
1136 TRACE("Clearing current D3D context.\n");
1137 if (!wglMakeCurrent(NULL, NULL))
1138 {
1139 DWORD err = GetLastError();
1140 ERR("Failed to clear current GL context, last error %#x.\n", err);
1141 TlsSetValue(wined3d_context_tls_idx, NULL);
1142 return FALSE;
1143 }
1144 }
1145
1146 return TlsSetValue(wined3d_context_tls_idx, ctx);
1147 }
1148
1149 void context_release(struct wined3d_context *context)
1150 {
1151 TRACE("Releasing context %p, level %u.\n", context, context->level);
1152
1153 if (WARN_ON(d3d))
1154 {
1155 if (!context->level)
1156 WARN("Context %p is not active.\n", context);
1157 else if (context != context_get_current())
1158 WARN("Context %p is not the current context.\n", context);
1159 }
1160
1161 if (!--context->level)
1162 {
1163 if (context_restore_pixel_format(context))
1164 context->needs_set = 1;
1165 if (context->restore_ctx)
1166 {
1167 TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc);
1168 context_restore_gl_context(context->gl_info, context->restore_dc, context->restore_ctx);
1169 context->restore_ctx = NULL;
1170 context->restore_dc = NULL;
1171 }
1172 }
1173 }
1174
1175 static void context_enter(struct wined3d_context *context)
1176 {
1177 TRACE("Entering context %p, level %u.\n", context, context->level + 1);
1178
1179 if (!context->level++)
1180 {
1181 const struct wined3d_context *current_context = context_get_current();
1182 HGLRC current_gl = wglGetCurrentContext();
1183
1184 if (current_gl && (!current_context || current_context->glCtx != current_gl))
1185 {
1186 TRACE("Another GL context (%p on device context %p) is already current.\n",
1187 current_gl, wglGetCurrentDC());
1188 context->restore_ctx = current_gl;
1189 context->restore_dc = wglGetCurrentDC();
1190 context->needs_set = 1;
1191 }
1192 else if (!context->needs_set && !(context->hdc_is_private && context->hdc_has_format)
1193 && context->pixel_format != GetPixelFormat(context->hdc))
1194 context->needs_set = 1;
1195 }
1196 }
1197
1198 void context_invalidate_state(struct wined3d_context *context, DWORD state)
1199 {
1200 DWORD rep = context->state_table[state].representative;
1201 DWORD idx;
1202 BYTE shift;
1203
1204 if (isStateDirty(context, rep)) return;
1205
1206 context->dirtyArray[context->numDirtyEntries++] = rep;
1207 idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
1208 shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
1209 context->isStateDirty[idx] |= (1 << shift);
1210 }
1211
1212 /* This function takes care of wined3d pixel format selection. */
1213 static int context_choose_pixel_format(const struct wined3d_device *device, HDC hdc,
1214 const struct wined3d_format *color_format, const struct wined3d_format *ds_format,
1215 BOOL auxBuffers, BOOL findCompatible)
1216 {
1217 int iPixelFormat=0;
1218 BYTE redBits, greenBits, blueBits, alphaBits, colorBits;
1219 BYTE depthBits=0, stencilBits=0;
1220 unsigned int current_value;
1221 unsigned int cfg_count = device->adapter->cfg_count;
1222 unsigned int i;
1223
1224 TRACE("device %p, dc %p, color_format %s, ds_format %s, aux_buffers %#x, find_compatible %#x.\n",
1225 device, hdc, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id),
1226 auxBuffers, findCompatible);
1227
1228 if (!getColorBits(color_format, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits))
1229 {
1230 ERR("Unable to get color bits for format %s (%#x)!\n",
1231 debug_d3dformat(color_format->id), color_format->id);
1232 return 0;
1233 }
1234
1235 getDepthStencilBits(ds_format, &depthBits, &stencilBits);
1236
1237 current_value = 0;
1238 for (i = 0; i < cfg_count; ++i)
1239 {
1240 const struct wined3d_pixel_format *cfg = &device->adapter->cfgs[i];
1241 unsigned int value;
1242
1243 /* For now only accept RGBA formats. Perhaps some day we will
1244 * allow floating point formats for pbuffers. */
1245 if (cfg->iPixelType != WGL_TYPE_RGBA_ARB)
1246 continue;
1247 /* In window mode we need a window drawable format and double buffering. */
1248 if (!(cfg->windowDrawable && cfg->doubleBuffer))
1249 continue;
1250 if (cfg->redSize < redBits)
1251 continue;
1252 if (cfg->greenSize < greenBits)
1253 continue;
1254 if (cfg->blueSize < blueBits)
1255 continue;
1256 if (cfg->alphaSize < alphaBits)
1257 continue;
1258 if (cfg->depthSize < depthBits)
1259 continue;
1260 if (stencilBits && cfg->stencilSize != stencilBits)
1261 continue;
1262 /* Check multisampling support. */
1263 if (cfg->numSamples)
1264 continue;
1265
1266 value = 1;
1267 /* We try to locate a format which matches our requirements exactly. In case of
1268 * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1269 if (cfg->depthSize == depthBits)
1270 value += 1;
1271 if (cfg->stencilSize == stencilBits)
1272 value += 2;
1273 if (cfg->alphaSize == alphaBits)
1274 value += 4;
1275 /* We like to have aux buffers in backbuffer mode */
1276 if (auxBuffers && cfg->auxBuffers)
1277 value += 8;
1278 if (cfg->redSize == redBits
1279 && cfg->greenSize == greenBits
1280 && cfg->blueSize == blueBits)
1281 value += 16;
1282
1283 if (value > current_value)
1284 {
1285 iPixelFormat = cfg->iPixelFormat;
1286 current_value = value;
1287 }
1288 }
1289
1290 /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1291 if(!iPixelFormat && !findCompatible) {
1292 ERR("Can't find a suitable iPixelFormat\n");
1293 return FALSE;
1294 } else if(!iPixelFormat) {
1295 PIXELFORMATDESCRIPTOR pfd;
1296
1297 TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1298 /* PixelFormat selection */
1299 ZeroMemory(&pfd, sizeof(pfd));
1300 pfd.nSize = sizeof(pfd);
1301 pfd.nVersion = 1;
1302 pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
1303 pfd.iPixelType = PFD_TYPE_RGBA;
1304 pfd.cAlphaBits = alphaBits;
1305 pfd.cColorBits = colorBits;
1306 pfd.cDepthBits = depthBits;
1307 pfd.cStencilBits = stencilBits;
1308 pfd.iLayerType = PFD_MAIN_PLANE;
1309
1310 iPixelFormat = ChoosePixelFormat(hdc, &pfd);
1311 if(!iPixelFormat) {
1312 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
1313 ERR("Can't find a suitable iPixelFormat\n");
1314 return FALSE;
1315 }
1316 }
1317
1318 TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1319 iPixelFormat, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id));
1320 return iPixelFormat;
1321 }
1322
1323 /* Context activation is done by the caller. */
1324 static void bind_dummy_textures(const struct wined3d_device *device, const struct wined3d_context *context)
1325 {
1326 const struct wined3d_gl_info *gl_info = context->gl_info;
1327 unsigned int i, count = min(MAX_COMBINED_SAMPLERS, gl_info->limits.combined_samplers);
1328
1329 for (i = 0; i < count; ++i)
1330 {
1331 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i));
1332 checkGLcall("glActiveTextureARB");
1333
1334 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D, device->dummy_texture_2d[i]);
1335 checkGLcall("glBindTexture");
1336
1337 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1338 {
1339 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_RECTANGLE_ARB, device->dummy_texture_rect[i]);
1340 checkGLcall("glBindTexture");
1341 }
1342
1343 if (gl_info->supported[EXT_TEXTURE3D])
1344 {
1345 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_3D, device->dummy_texture_3d[i]);
1346 checkGLcall("glBindTexture");
1347 }
1348
1349 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1350 {
1351 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, device->dummy_texture_cube[i]);
1352 checkGLcall("glBindTexture");
1353 }
1354 }
1355 }
1356
1357 BOOL context_debug_output_enabled(const struct wined3d_gl_info *gl_info)
1358 {
1359 return gl_info->supported[ARB_DEBUG_OUTPUT]
1360 && (ERR_ON(d3d) || FIXME_ON(d3d) || WARN_ON(d3d_perf));
1361 }
1362
1363 static void WINE_GLAPI wined3d_debug_callback(GLenum source, GLenum type, GLuint id,
1364 GLenum severity, GLsizei length, const char *message, void *ctx)
1365 {
1366 switch (type)
1367 {
1368 case GL_DEBUG_TYPE_ERROR_ARB:
1369 ERR("%p: %s.\n", ctx, debugstr_an(message, length));
1370 break;
1371
1372 case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB:
1373 case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB:
1374 case GL_DEBUG_TYPE_PORTABILITY_ARB:
1375 FIXME("%p: %s.\n", ctx, debugstr_an(message, length));
1376 break;
1377
1378 case GL_DEBUG_TYPE_PERFORMANCE_ARB:
1379 WARN_(d3d_perf)("%p: %s.\n", ctx, debugstr_an(message, length));
1380 break;
1381
1382 default:
1383 FIXME("ctx %p, type %#x: %s.\n", ctx, type, debugstr_an(message, length));
1384 break;
1385 }
1386 }
1387
1388 struct wined3d_context *context_create(struct wined3d_swapchain *swapchain,
1389 struct wined3d_surface *target, const struct wined3d_format *ds_format)
1390 {
1391 struct wined3d_device *device = swapchain->device;
1392 const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1393 const struct wined3d_format *color_format;
1394 struct wined3d_context *ret;
1395 BOOL auxBuffers = FALSE;
1396 HGLRC ctx, share_ctx;
1397 int pixel_format;
1398 unsigned int s;
1399 int swap_interval;
1400 DWORD state;
1401 HDC hdc;
1402 BOOL hdc_is_private = FALSE;
1403
1404 TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle);
1405
1406 ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
1407 if (!ret)
1408 return NULL;
1409
1410 ret->blit_targets = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1411 gl_info->limits.buffers * sizeof(*ret->blit_targets));
1412 if (!ret->blit_targets)
1413 goto out;
1414
1415 ret->draw_buffers = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1416 gl_info->limits.buffers * sizeof(*ret->draw_buffers));
1417 if (!ret->draw_buffers)
1418 goto out;
1419
1420 ret->free_timestamp_query_size = 4;
1421 ret->free_timestamp_queries = HeapAlloc(GetProcessHeap(), 0,
1422 ret->free_timestamp_query_size * sizeof(*ret->free_timestamp_queries));
1423 if (!ret->free_timestamp_queries)
1424 goto out;
1425 list_init(&ret->timestamp_queries);
1426
1427 ret->free_occlusion_query_size = 4;
1428 ret->free_occlusion_queries = HeapAlloc(GetProcessHeap(), 0,
1429 ret->free_occlusion_query_size * sizeof(*ret->free_occlusion_queries));
1430 if (!ret->free_occlusion_queries)
1431 goto out;
1432
1433 list_init(&ret->occlusion_queries);
1434
1435 ret->free_event_query_size = 4;
1436 ret->free_event_queries = HeapAlloc(GetProcessHeap(), 0,
1437 ret->free_event_query_size * sizeof(*ret->free_event_queries));
1438 if (!ret->free_event_queries)
1439 goto out;
1440
1441 list_init(&ret->event_queries);
1442 list_init(&ret->fbo_list);
1443 list_init(&ret->fbo_destroy_list);
1444
1445 if (!device->shader_backend->shader_allocate_context_data(ret))
1446 {
1447 ERR("Failed to allocate shader backend context data.\n");
1448 goto out;
1449 }
1450
1451 /* Initialize the texture unit mapping to a 1:1 mapping */
1452 for (s = 0; s < MAX_COMBINED_SAMPLERS; ++s)
1453 {
1454 if (s < gl_info->limits.fragment_samplers)
1455 {
1456 ret->tex_unit_map[s] = s;
1457 ret->rev_tex_unit_map[s] = s;
1458 }
1459 else
1460 {
1461 ret->tex_unit_map[s] = WINED3D_UNMAPPED_STAGE;
1462 ret->rev_tex_unit_map[s] = WINED3D_UNMAPPED_STAGE;
1463 }
1464 }
1465
1466 if (!(hdc = GetDC(swapchain->win_handle)))
1467 {
1468 WARN("Failed to retireve device context, trying swapchain backup.\n");
1469
1470 if ((hdc = swapchain_get_backup_dc(swapchain)))
1471 hdc_is_private = TRUE;
1472 else
1473 {
1474 ERR("Failed to retrieve a device context.\n");
1475 goto out;
1476 }
1477 }
1478
1479 color_format = target->resource.format;
1480
1481 /* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1482 * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1483 if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER)
1484 {
1485 auxBuffers = TRUE;
1486
1487 if (color_format->id == WINED3DFMT_B4G4R4X4_UNORM)
1488 color_format = wined3d_get_format(gl_info, WINED3DFMT_B4G4R4A4_UNORM);
1489 else if (color_format->id == WINED3DFMT_B8G8R8X8_UNORM)
1490 color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1491 }
1492
1493 /* DirectDraw supports 8bit paletted render targets and these are used by
1494 * old games like StarCraft and C&C. Most modern hardware doesn't support
1495 * 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1496 * conversion (ab)uses the alpha component for storing the palette index.
1497 * For this reason we require a format with 8bit alpha, so request
1498 * A8R8G8B8. */
1499 if (color_format->id == WINED3DFMT_P8_UINT)
1500 color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1501
1502 /* Try to find a pixel format which matches our requirements. */
1503 pixel_format = context_choose_pixel_format(device, hdc, color_format, ds_format, auxBuffers, FALSE);
1504
1505 /* Try to locate a compatible format if we weren't able to find anything. */
1506 if (!pixel_format)
1507 {
1508 TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1509 pixel_format = context_choose_pixel_format(device, hdc, color_format, ds_format, auxBuffers, TRUE);
1510 }
1511
1512 /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1513 if (!pixel_format)
1514 {
1515 ERR("Can't find a suitable pixel format.\n");
1516 goto out;
1517 }
1518
1519 context_enter(ret);
1520
1521 ret->gl_info = gl_info;
1522
1523 if (!context_set_pixel_format(ret, hdc, hdc_is_private, pixel_format))
1524 {
1525 ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc);
1526 context_release(ret);
1527 goto out;
1528 }
1529
1530 share_ctx = device->context_count ? device->contexts[0]->glCtx : NULL;
1531 if (gl_info->p_wglCreateContextAttribsARB)
1532 {
1533 unsigned int ctx_attrib_idx = 0;
1534 GLint ctx_attribs[3];
1535
1536 if (context_debug_output_enabled(gl_info))
1537 {
1538 ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_FLAGS_ARB;
1539 ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_DEBUG_BIT_ARB;
1540 }
1541 ctx_attribs[ctx_attrib_idx] = 0;
1542
1543 if (!(ctx = gl_info->p_wglCreateContextAttribsARB(hdc, share_ctx, ctx_attribs)))
1544 {
1545 ERR("Failed to create a WGL context.\n");
1546 context_release(ret);
1547 goto out;
1548 }
1549 }
1550 else
1551 {
1552 if (!(ctx = wglCreateContext(hdc)))
1553 {
1554 ERR("Failed to create a WGL context.\n");
1555 context_release(ret);
1556 goto out;
1557 }
1558
1559 if (share_ctx && !wglShareLists(share_ctx, ctx))
1560 {
1561 ERR("wglShareLists(%p, %p) failed, last error %#x.\n", share_ctx, ctx, GetLastError());
1562 context_release(ret);
1563 if (!wglDeleteContext(ctx))
1564 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1565 goto out;
1566 }
1567 }
1568
1569 if (!device_context_add(device, ret))
1570 {
1571 ERR("Failed to add the newly created context to the context list\n");
1572 context_release(ret);
1573 if (!wglDeleteContext(ctx))
1574 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1575 goto out;
1576 }
1577
1578 ret->d3d_info = &device->adapter->d3d_info;
1579 ret->state_table = device->StateTable;
1580
1581 /* Mark all states dirty to force a proper initialization of the states
1582 * on the first use of the context. */
1583 for (state = 0; state <= STATE_HIGHEST; ++state)
1584 {
1585 if (ret->state_table[state].representative)
1586 context_invalidate_state(ret, state);
1587 }
1588
1589 ret->swapchain = swapchain;
1590 ret->current_rt = target;
1591 ret->tid = GetCurrentThreadId();
1592
1593 ret->render_offscreen = wined3d_resource_is_offscreen(&target->resource);
1594 ret->draw_buffers_mask = context_generate_rt_mask(GL_BACK);
1595 ret->valid = 1;
1596
1597 ret->glCtx = ctx;
1598 ret->win_handle = swapchain->win_handle;
1599 ret->hdc = hdc;
1600 ret->hdc_is_private = hdc_is_private;
1601 ret->hdc_has_format = TRUE;
1602 ret->pixel_format = pixel_format;
1603 ret->needs_set = 1;
1604
1605 /* Set up the context defaults */
1606 if (!context_set_current(ret))
1607 {
1608 ERR("Cannot activate context to set up defaults.\n");
1609 device_context_remove(device, ret);
1610 context_release(ret);
1611 if (!wglDeleteContext(ctx))
1612 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1613 goto out;
1614 }
1615
1616 if (context_debug_output_enabled(gl_info))
1617 {
1618 GL_EXTCALL(glDebugMessageCallbackARB(wined3d_debug_callback, ret));
1619 if (TRACE_ON(d3d_synchronous))
1620 gl_info->gl_ops.gl.p_glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
1621 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_FALSE));
1622 if (ERR_ON(d3d))
1623 {
1624 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_ERROR_ARB,
1625 GL_DONT_CARE, 0, NULL, GL_TRUE));
1626 }
1627 if (FIXME_ON(d3d))
1628 {
1629 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB,
1630 GL_DONT_CARE, 0, NULL, GL_TRUE));
1631 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB,
1632 GL_DONT_CARE, 0, NULL, GL_TRUE));
1633 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_PORTABILITY_ARB,
1634 GL_DONT_CARE, 0, NULL, GL_TRUE));
1635 }
1636 if (WARN_ON(d3d_perf))
1637 {
1638 GL_EXTCALL(glDebugMessageControlARB(GL_DONT_CARE, GL_DEBUG_TYPE_PERFORMANCE_ARB,
1639 GL_DONT_CARE, 0, NULL, GL_TRUE));
1640 }
1641 }
1642
1643 switch (swapchain->desc.swap_interval)
1644 {
1645 case WINED3DPRESENT_INTERVAL_IMMEDIATE:
1646 swap_interval = 0;
1647 break;
1648 case WINED3DPRESENT_INTERVAL_DEFAULT:
1649 case WINED3DPRESENT_INTERVAL_ONE:
1650 swap_interval = 1;
1651 break;
1652 case WINED3DPRESENT_INTERVAL_TWO:
1653 swap_interval = 2;
1654 break;
1655 case WINED3DPRESENT_INTERVAL_THREE:
1656 swap_interval = 3;
1657 break;
1658 case WINED3DPRESENT_INTERVAL_FOUR:
1659 swap_interval = 4;
1660 break;
1661 default:
1662 FIXME("Unknown swap interval %#x.\n", swapchain->desc.swap_interval);
1663 swap_interval = 1;
1664 }
1665
1666 if (gl_info->supported[WGL_EXT_SWAP_CONTROL])
1667 {
1668 if (!GL_EXTCALL(wglSwapIntervalEXT(swap_interval)))
1669 ERR("wglSwapIntervalEXT failed to set swap interval %d for context %p, last error %#x\n",
1670 swap_interval, ret, GetLastError());
1671 }
1672
1673 gl_info->gl_ops.gl.p_glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers);
1674
1675 TRACE("Setting up the screen\n");
1676
1677 gl_info->gl_ops.gl.p_glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
1678 checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1679
1680 gl_info->gl_ops.gl.p_glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
1681 checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1682
1683 gl_info->gl_ops.gl.p_glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1684 checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1685
1686 gl_info->gl_ops.gl.p_glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);
1687 checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1688 gl_info->gl_ops.gl.p_glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);
1689 checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);");
1690
1691 if (gl_info->supported[ARB_VERTEX_BLEND])
1692 {
1693 /* Direct3D always uses n-1 weights for n world matrices and uses
1694 * 1 - sum for the last one this is equal to GL_WEIGHT_SUM_UNITY_ARB.
1695 * Enabling it doesn't do anything unless GL_VERTEX_BLEND_ARB isn't
1696 * enabled as well. */
1697 gl_info->gl_ops.gl.p_glEnable(GL_WEIGHT_SUM_UNITY_ARB);
1698 checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1699 }
1700 if (gl_info->supported[NV_TEXTURE_SHADER2])
1701 {
1702 /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1703 * the previous texture where to source the offset from is always unit - 1.
1704 */
1705 for (s = 1; s < gl_info->limits.textures; ++s)
1706 {
1707 context_active_texture(ret, gl_info, s);
1708 gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_SHADER_NV,
1709 GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
1710 checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1711 }
1712 }
1713 if (gl_info->supported[ARB_FRAGMENT_PROGRAM])
1714 {
1715 /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1716 * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1717 * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1718 * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1719 * is ever assigned.
1720 *
1721 * So make sure a program is assigned to each context. The first real ARBFP use will set a different
1722 * program and the dummy program is destroyed when the context is destroyed.
1723 */
1724 static const char dummy_program[] =
1725 "!!ARBfp1.0\n"
1726 "MOV result.color, fragment.color.primary;\n"
1727 "END\n";
1728 GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog));
1729 GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog));
1730 GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program));
1731 }
1732
1733 if (gl_info->supported[ARB_POINT_SPRITE])
1734 {
1735 for (s = 0; s < gl_info->limits.textures; ++s)
1736 {
1737 context_active_texture(ret, gl_info, s);
1738 gl_info->gl_ops.gl.p_glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
1739 checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1740 }
1741 }
1742
1743 if (gl_info->supported[ARB_PROVOKING_VERTEX])
1744 {
1745 GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION));
1746 }
1747 else if (gl_info->supported[EXT_PROVOKING_VERTEX])
1748 {
1749 GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT));
1750 }
1751 ret->shader_update_mask = (1 << WINED3D_SHADER_TYPE_PIXEL)
1752 | (1 << WINED3D_SHADER_TYPE_VERTEX)
1753 | (1 << WINED3D_SHADER_TYPE_GEOMETRY);
1754
1755 /* If this happens to be the first context for the device, dummy textures
1756 * are not created yet. In that case, they will be created (and bound) by
1757 * create_dummy_textures right after this context is initialized. */
1758 if (device->dummy_texture_2d[0])
1759 bind_dummy_textures(device, ret);
1760
1761 TRACE("Created context %p.\n", ret);
1762
1763 return ret;
1764
1765 out:
1766 device->shader_backend->shader_free_context_data(ret);
1767 HeapFree(GetProcessHeap(), 0, ret->free_event_queries);
1768 HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries);
1769 HeapFree(GetProcessHeap(), 0, ret->free_timestamp_queries);
1770 HeapFree(GetProcessHeap(), 0, ret->draw_buffers);
1771 HeapFree(GetProcessHeap(), 0, ret->blit_targets);
1772 HeapFree(GetProcessHeap(), 0, ret);
1773 return NULL;
1774 }
1775
1776 void context_destroy(struct wined3d_device *device, struct wined3d_context *context)
1777 {
1778 BOOL destroy;
1779
1780 TRACE("Destroying ctx %p\n", context);
1781
1782 if (context->tid == GetCurrentThreadId() || !context->current)
1783 {
1784 context_destroy_gl_resources(context);
1785 TlsSetValue(wined3d_context_tls_idx, NULL);
1786 destroy = TRUE;
1787 }
1788 else
1789 {
1790 /* Make a copy of gl_info for context_destroy_gl_resources use, the one
1791 in wined3d_adapter may go away in the meantime */
1792 struct wined3d_gl_info *gl_info = HeapAlloc(GetProcessHeap(), 0, sizeof(*gl_info));
1793 *gl_info = *context->gl_info;
1794 context->gl_info = gl_info;
1795 context->destroyed = 1;
1796 destroy = FALSE;
1797 }
1798
1799 device->shader_backend->shader_free_context_data(context);
1800 HeapFree(GetProcessHeap(), 0, context->draw_buffers);
1801 HeapFree(GetProcessHeap(), 0, context->blit_targets);
1802 device_context_remove(device, context);
1803 if (destroy) HeapFree(GetProcessHeap(), 0, context);
1804 }
1805
1806 /* Context activation is done by the caller. */
1807 static void set_blit_dimension(const struct wined3d_gl_info *gl_info, UINT width, UINT height)
1808 {
1809 const GLdouble projection[] =
1810 {
1811 2.0 / width, 0.0, 0.0, 0.0,
1812 0.0, 2.0 / height, 0.0, 0.0,
1813 0.0, 0.0, 2.0, 0.0,
1814 -1.0, -1.0, -1.0, 1.0,
1815 };
1816
1817 gl_info->gl_ops.gl.p_glMatrixMode(GL_PROJECTION);
1818 checkGLcall("glMatrixMode(GL_PROJECTION)");
1819 gl_info->gl_ops.gl.p_glLoadMatrixd(projection);
1820 checkGLcall("glLoadMatrixd");
1821 gl_info->gl_ops.gl.p_glViewport(0, 0, width, height);
1822 checkGLcall("glViewport");
1823 }
1824
1825 static void context_get_rt_size(const struct wined3d_context *context, SIZE *size)
1826 {
1827 const struct wined3d_surface *rt = context->current_rt;
1828
1829 if (rt->container->swapchain && rt->container->swapchain->front_buffer == rt->container)
1830 {
1831 RECT window_size;
1832
1833 GetClientRect(context->win_handle, &window_size);
1834 size->cx = window_size.right - window_size.left;
1835 size->cy = window_size.bottom - window_size.top;
1836
1837 return;
1838 }
1839
1840 size->cx = rt->resource.width;
1841 size->cy = rt->resource.height;
1842 }
1843
1844 /*****************************************************************************
1845 * SetupForBlit
1846 *
1847 * Sets up a context for DirectDraw blitting.
1848 * All texture units are disabled, texture unit 0 is set as current unit
1849 * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
1850 * color writing enabled for all channels
1851 * register combiners disabled, shaders disabled
1852 * world matrix is set to identity, texture matrix 0 too
1853 * projection matrix is setup for drawing screen coordinates
1854 *
1855 * Params:
1856 * This: Device to activate the context for
1857 * context: Context to setup
1858 *
1859 *****************************************************************************/
1860 /* Context activation is done by the caller. */
1861 static void SetupForBlit(const struct wined3d_device *device, struct wined3d_context *context)
1862 {
1863 int i;
1864 const struct wined3d_gl_info *gl_info = context->gl_info;
1865 DWORD sampler;
1866 SIZE rt_size;
1867
1868 TRACE("Setting up context %p for blitting\n", context);
1869
1870 context_get_rt_size(context, &rt_size);
1871
1872 if (context->last_was_blit)
1873 {
1874 if (context->blit_w != rt_size.cx || context->blit_h != rt_size.cy)
1875 {
1876 set_blit_dimension(gl_info, rt_size.cx, rt_size.cy);
1877 context->blit_w = rt_size.cx;
1878 context->blit_h = rt_size.cy;
1879 /* No need to dirtify here, the states are still dirtified because
1880 * they weren't applied since the last SetupForBlit() call. */
1881 }
1882 TRACE("Context is already set up for blitting, nothing to do\n");
1883 return;
1884 }
1885 context->last_was_blit = TRUE;
1886
1887 /* Disable all textures. The caller can then bind a texture it wants to blit
1888 * from
1889 *
1890 * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
1891 * function texture unit. No need to care for higher samplers
1892 */
1893 for (i = gl_info->limits.textures - 1; i > 0 ; --i)
1894 {
1895 sampler = context->rev_tex_unit_map[i];
1896 context_active_texture(context, gl_info, i);
1897
1898 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1899 {
1900 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1901 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1902 }
1903 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_3D);
1904 checkGLcall("glDisable GL_TEXTURE_3D");
1905 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1906 {
1907 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_RECTANGLE_ARB);
1908 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1909 }
1910 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_2D);
1911 checkGLcall("glDisable GL_TEXTURE_2D");
1912
1913 gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1914 checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
1915
1916 if (sampler != WINED3D_UNMAPPED_STAGE)
1917 {
1918 if (sampler < MAX_TEXTURES)
1919 context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3D_TSS_COLOR_OP));
1920 context_invalidate_state(context, STATE_SAMPLER(sampler));
1921 }
1922 }
1923 context_active_texture(context, gl_info, 0);
1924
1925 sampler = context->rev_tex_unit_map[0];
1926
1927 if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1928 {
1929 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_CUBE_MAP_ARB);
1930 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1931 }
1932 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_3D);
1933 checkGLcall("glDisable GL_TEXTURE_3D");
1934 if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1935 {
1936 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_RECTANGLE_ARB);
1937 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1938 }
1939 gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_2D);
1940 checkGLcall("glDisable GL_TEXTURE_2D");
1941
1942 gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1943
1944 gl_info->gl_ops.gl.p_glMatrixMode(GL_TEXTURE);
1945 checkGLcall("glMatrixMode(GL_TEXTURE)");
1946 gl_info->gl_ops.gl.p_glLoadIdentity();
1947 checkGLcall("glLoadIdentity()");
1948
1949 if (gl_info->supported[EXT_TEXTURE_LOD_BIAS])
1950 {
1951 gl_info->gl_ops.gl.p_glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
1952 GL_TEXTURE_LOD_BIAS_EXT, 0.0f);
1953 checkGLcall("glTexEnvf GL_TEXTURE_LOD_BIAS_EXT ...");
1954 }
1955
1956 if (sampler != WINED3D_UNMAPPED_STAGE)
1957 {
1958 if (sampler < MAX_TEXTURES)
1959 {
1960 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_TEXTURE0 + sampler));
1961 context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3D_TSS_COLOR_OP));
1962 }
1963 context_invalidate_state(context, STATE_SAMPLER(sampler));
1964 }
1965
1966 /* Other misc states */
1967 gl_info->gl_ops.gl.p_glDisable(GL_ALPHA_TEST);
1968 checkGLcall("glDisable(GL_ALPHA_TEST)");
1969 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHATESTENABLE));
1970 gl_info->gl_ops.gl.p_glDisable(GL_LIGHTING);
1971 checkGLcall("glDisable GL_LIGHTING");
1972 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_LIGHTING));
1973 gl_info->gl_ops.gl.p_glDisable(GL_DEPTH_TEST);
1974 checkGLcall("glDisable GL_DEPTH_TEST");
1975 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ZENABLE));
1976 glDisableWINE(GL_FOG);
1977 checkGLcall("glDisable GL_FOG");
1978 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_FOGENABLE));
1979 gl_info->gl_ops.gl.p_glDisable(GL_BLEND);
1980 checkGLcall("glDisable GL_BLEND");
1981 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
1982 gl_info->gl_ops.gl.p_glDisable(GL_CULL_FACE);
1983 checkGLcall("glDisable GL_CULL_FACE");
1984 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_CULLMODE));
1985 gl_info->gl_ops.gl.p_glDisable(GL_STENCIL_TEST);
1986 checkGLcall("glDisable GL_STENCIL_TEST");
1987 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_STENCILENABLE));
1988 gl_info->gl_ops.gl.p_glDisable(GL_SCISSOR_TEST);
1989 checkGLcall("glDisable GL_SCISSOR_TEST");
1990 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
1991 if (gl_info->supported[ARB_POINT_SPRITE])
1992 {
1993 gl_info->gl_ops.gl.p_glDisable(GL_POINT_SPRITE_ARB);
1994 checkGLcall("glDisable GL_POINT_SPRITE_ARB");
1995 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_POINTSPRITEENABLE));
1996 }
1997 gl_info->gl_ops.gl.p_glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
1998 checkGLcall("glColorMask");
1999 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE));
2000 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE1));
2001 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE2));
2002 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE3));
2003 if (gl_info->supported[EXT_SECONDARY_COLOR])
2004 {
2005 gl_info->gl_ops.gl.p_glDisable(GL_COLOR_SUM_EXT);
2006 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SPECULARENABLE));
2007 checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
2008 }
2009
2010 /* Setup transforms */
2011 gl_info->gl_ops.gl.p_glMatrixMode(GL_MODELVIEW);
2012 checkGLcall("glMatrixMode(GL_MODELVIEW)");
2013 gl_info->gl_ops.gl.p_glLoadIdentity();
2014 checkGLcall("glLoadIdentity()");
2015 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_WORLD_MATRIX(0)));
2016
2017 context->last_was_rhw = TRUE;
2018 context_invalidate_state(context, STATE_VDECL); /* because of last_was_rhw = TRUE */
2019
2020 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
2021 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
2022 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
2023 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
2024 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
2025 gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
2026 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_CLIPPING));
2027
2028 set_blit_dimension(gl_info, rt_size.cx, rt_size.cy);
2029
2030 /* Disable shaders */
2031 device->shader_backend->shader_disable(device->shader_priv, context);
2032
2033 context->blit_w = rt_size.cx;
2034 context->blit_h = rt_size.cy;
2035 context_invalidate_state(context, STATE_VIEWPORT);
2036 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_PROJECTION));
2037 }
2038
2039 static inline BOOL is_rt_mask_onscreen(DWORD rt_mask)
2040 {
2041 return rt_mask & (1 << 31);
2042 }
2043
2044 static inline GLenum draw_buffer_from_rt_mask(DWORD rt_mask)
2045 {
2046 return rt_mask & ~(1 << 31);
2047 }
2048
2049 /* Context activation is done by the caller. */
2050 static void context_apply_draw_buffers(struct wined3d_context *context, DWORD rt_mask)
2051 {
2052 const struct wined3d_gl_info *gl_info = context->gl_info;
2053
2054 if (!rt_mask)
2055 {
2056 gl_info->gl_ops.gl.p_glDrawBuffer(GL_NONE);
2057 checkGLcall("glDrawBuffer()");
2058 }
2059 else if (is_rt_mask_onscreen(rt_mask))
2060 {
2061 gl_info->gl_ops.gl.p_glDrawBuffer(draw_buffer_from_rt_mask(rt_mask));
2062 checkGLcall("glDrawBuffer()");
2063 }
2064 else
2065 {
2066 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2067 {
2068 unsigned int i = 0;
2069
2070 while (rt_mask)
2071 {
2072 if (rt_mask & 1)
2073 context->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
2074 else
2075 context->draw_buffers[i] = GL_NONE;
2076
2077 rt_mask >>= 1;
2078 ++i;
2079 }
2080
2081 if (gl_info->supported[ARB_DRAW_BUFFERS])
2082 {
2083 GL_EXTCALL(glDrawBuffersARB(i, context->draw_buffers));
2084 checkGLcall("glDrawBuffers()");
2085 }
2086 else
2087 {
2088 gl_info->gl_ops.gl.p_glDrawBuffer(context->draw_buffers[0]);
2089 checkGLcall("glDrawBuffer()");
2090 }
2091 }
2092 else
2093 {
2094 ERR("Unexpected draw buffers mask with backbuffer ORM.\n");
2095 }
2096 }
2097 }
2098
2099 /* Context activation is done by the caller. */
2100 void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
2101 {
2102 const struct wined3d_gl_info *gl_info = context->gl_info;
2103 DWORD *current_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2104 DWORD new_mask = context_generate_rt_mask(buffer);
2105
2106 if (new_mask == *current_mask)
2107 return;
2108
2109 gl_info->gl_ops.gl.p_glDrawBuffer(buffer);
2110 checkGLcall("glDrawBuffer()");
2111
2112 *current_mask = new_mask;
2113 }
2114
2115 /* Context activation is done by the caller. */
2116 void context_active_texture(struct wined3d_context *context, const struct wined3d_gl_info *gl_info, unsigned int unit)
2117 {
2118 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0 + unit));
2119 checkGLcall("glActiveTextureARB");
2120 context->active_texture = unit;
2121 }
2122
2123 void context_bind_texture(struct wined3d_context *context, GLenum target, GLuint name)
2124 {
2125 const struct wined3d_gl_info *gl_info = context->gl_info;
2126 DWORD unit = context->active_texture;
2127 DWORD old_texture_type = context->texture_type[unit];
2128
2129 if (name)
2130 {
2131 gl_info->gl_ops.gl.p_glBindTexture(target, name);
2132 checkGLcall("glBindTexture");
2133 }
2134 else
2135 {
2136 target = GL_NONE;
2137 }
2138
2139 if (old_texture_type != target)
2140 {
2141 const struct wined3d_device *device = context->swapchain->device;
2142
2143 switch (old_texture_type)
2144 {
2145 case GL_NONE:
2146 /* nothing to do */
2147 break;
2148 case GL_TEXTURE_2D:
2149 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D, device->dummy_texture_2d[unit]);
2150 checkGLcall("glBindTexture");
2151 break;
2152 case GL_TEXTURE_RECTANGLE_ARB:
2153 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_RECTANGLE_ARB, device->dummy_texture_rect[unit]);
2154 checkGLcall("glBindTexture");
2155 break;
2156 case GL_TEXTURE_CUBE_MAP:
2157 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, device->dummy_texture_cube[unit]);
2158 checkGLcall("glBindTexture");
2159 break;
2160 case GL_TEXTURE_3D:
2161 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_3D, device->dummy_texture_3d[unit]);
2162 checkGLcall("glBindTexture");
2163 break;
2164 default:
2165 ERR("Unexpected texture target %#x\n", old_texture_type);
2166 }
2167
2168 context->texture_type[unit] = target;
2169 }
2170 }
2171
2172 static void context_set_render_offscreen(struct wined3d_context *context, BOOL offscreen)
2173 {
2174 if (context->render_offscreen == offscreen) return;
2175
2176 context_invalidate_state(context, STATE_POINTSPRITECOORDORIGIN);
2177 context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_PROJECTION));
2178 context_invalidate_state(context, STATE_VIEWPORT);
2179 context_invalidate_state(context, STATE_SCISSORRECT);
2180 context_invalidate_state(context, STATE_FRONTFACE);
2181 context->render_offscreen = offscreen;
2182 }
2183
2184 static BOOL match_depth_stencil_format(const struct wined3d_format *existing,
2185 const struct wined3d_format *required)
2186 {
2187 BYTE existing_depth, existing_stencil, required_depth, required_stencil;
2188
2189 if (existing == required) return TRUE;
2190 if ((existing->flags & WINED3DFMT_FLAG_FLOAT) != (required->flags & WINED3DFMT_FLAG_FLOAT)) return FALSE;
2191
2192 getDepthStencilBits(existing, &existing_depth, &existing_stencil);
2193 getDepthStencilBits(required, &required_depth, &required_stencil);
2194
2195 if(existing_depth < required_depth) return FALSE;
2196 /* If stencil bits are used the exact amount is required - otherwise wrapping
2197 * won't work correctly */
2198 if(required_stencil && required_stencil != existing_stencil) return FALSE;
2199 return TRUE;
2200 }
2201
2202 /* The caller provides a context */
2203 static void context_validate_onscreen_formats(struct wined3d_context *context,
2204 const struct wined3d_rendertarget_view *depth_stencil)
2205 {
2206 /* Onscreen surfaces are always in a swapchain */
2207 struct wined3d_swapchain *swapchain = context->current_rt->container->swapchain;
2208
2209 if (context->render_offscreen || !depth_stencil) return;
2210 if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->format)) return;
2211
2212 /* TODO: If the requested format would satisfy the needs of the existing one(reverse match),
2213 * or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new
2214 * format. */
2215 WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n");
2216
2217 /* The currently active context is the necessary context to access the swapchain's onscreen buffers */
2218 surface_load_location(context->current_rt, WINED3D_LOCATION_TEXTURE_RGB);
2219 swapchain->render_to_fbo = TRUE;
2220 swapchain_update_draw_bindings(swapchain);
2221 context_set_render_offscreen(context, TRUE);
2222 }
2223
2224 static DWORD context_generate_rt_mask_no_fbo(const struct wined3d_device *device, const struct wined3d_surface *rt)
2225 {
2226 if (!rt || rt->resource.format->id == WINED3DFMT_NULL)
2227 return 0;
2228 else if (rt->container->swapchain)
2229 return context_generate_rt_mask_from_surface(rt);
2230 else
2231 return context_generate_rt_mask(device->offscreenBuffer);
2232 }
2233
2234 /* Context activation is done by the caller. */
2235 void context_apply_blit_state(struct wined3d_context *context, const struct wined3d_device *device)
2236 {
2237 struct wined3d_surface *rt = context->current_rt;
2238 DWORD rt_mask, *cur_mask;
2239
2240 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2241 {
2242 context_validate_onscreen_formats(context, NULL);
2243
2244 if (context->render_offscreen)
2245 {
2246 wined3d_texture_load(rt->container, context, FALSE);
2247
2248 context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, rt, NULL, rt->container->resource.draw_binding);
2249 if (rt->resource.format->id != WINED3DFMT_NULL)
2250 rt_mask = 1;
2251 else
2252 rt_mask = 0;
2253 }
2254 else
2255 {
2256 context->current_fbo = NULL;
2257 context_bind_fbo(context, GL_FRAMEBUFFER, 0);
2258 rt_mask = context_generate_rt_mask_from_surface(rt);
2259 }
2260 }
2261 else
2262 {
2263 rt_mask = context_generate_rt_mask_no_fbo(device, rt);
2264 }
2265
2266 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2267
2268 if (rt_mask != *cur_mask)
2269 {
2270 context_apply_draw_buffers(context, rt_mask);
2271 *cur_mask = rt_mask;
2272 }
2273
2274 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2275 {
2276 context_check_fbo_status(context, GL_FRAMEBUFFER);
2277 }
2278
2279 SetupForBlit(device, context);
2280 context_invalidate_state(context, STATE_FRAMEBUFFER);
2281 }
2282
2283 static BOOL context_validate_rt_config(UINT rt_count, struct wined3d_rendertarget_view * const *rts,
2284 const struct wined3d_rendertarget_view *ds)
2285 {
2286 unsigned int i;
2287
2288 if (ds) return TRUE;
2289
2290 for (i = 0; i < rt_count; ++i)
2291 {
2292 if (rts[i] && rts[i]->format->id != WINED3DFMT_NULL)
2293 return TRUE;
2294 }
2295
2296 WARN("Invalid render target config, need at least one attachment.\n");
2297 return FALSE;
2298 }
2299
2300 /* Context activation is done by the caller. */
2301 BOOL context_apply_clear_state(struct wined3d_context *context, const struct wined3d_device *device,
2302 UINT rt_count, const struct wined3d_fb_state *fb)
2303 {
2304 struct wined3d_rendertarget_view **rts = fb->render_targets;
2305 const struct wined3d_gl_info *gl_info = context->gl_info;
2306 DWORD rt_mask = 0, *cur_mask;
2307 UINT i;
2308
2309 if (isStateDirty(context, STATE_FRAMEBUFFER) || fb != &device->fb
2310 || rt_count != context->gl_info->limits.buffers)
2311 {
2312 if (!context_validate_rt_config(rt_count, rts, fb->depth_stencil))
2313 return FALSE;
2314
2315 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2316 {
2317 context_validate_onscreen_formats(context, fb->depth_stencil);
2318
2319 if (!rt_count || wined3d_resource_is_offscreen(rts[0]->resource))
2320 {
2321 for (i = 0; i < rt_count; ++i)
2322 {
2323 context->blit_targets[i] = wined3d_rendertarget_view_get_surface(rts[i]);
2324 if (rts[i] && rts[i]->format->id != WINED3DFMT_NULL)
2325 rt_mask |= (1 << i);
2326 }
2327 while (i < context->gl_info->limits.buffers)
2328 {
2329 context->blit_targets[i] = NULL;
2330 ++i;
2331 }
2332 context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets,
2333 wined3d_rendertarget_view_get_surface(fb->depth_stencil),
2334 rt_count ? rts[0]->resource->draw_binding : WINED3D_LOCATION_TEXTURE_RGB);
2335 }
2336 else
2337 {
2338 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, WINED3D_LOCATION_DRAWABLE);
2339 rt_mask = context_generate_rt_mask_from_surface(wined3d_rendertarget_view_get_surface(rts[0]));
2340 }
2341
2342 /* If the framebuffer is not the device's fb the device's fb has to be reapplied
2343 * next draw. Otherwise we could mark the framebuffer state clean here, once the
2344 * state management allows this */
2345 context_invalidate_state(context, STATE_FRAMEBUFFER);
2346 }
2347 else
2348 {
2349 rt_mask = context_generate_rt_mask_no_fbo(device,
2350 rt_count ? wined3d_rendertarget_view_get_surface(rts[0]) : NULL);
2351 }
2352 }
2353 else if (wined3d_settings.offscreen_rendering_mode == ORM_FBO
2354 && (!rt_count || wined3d_resource_is_offscreen(rts[0]->resource)))
2355 {
2356 for (i = 0; i < rt_count; ++i)
2357 {
2358 if (rts[i] && rts[i]->format->id != WINED3DFMT_NULL)
2359 rt_mask |= (1 << i);
2360 }
2361 }
2362 else
2363 {
2364 rt_mask = context_generate_rt_mask_no_fbo(device,
2365 rt_count ? wined3d_rendertarget_view_get_surface(rts[0]) : NULL);
2366 }
2367
2368 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2369
2370 if (rt_mask != *cur_mask)
2371 {
2372 context_apply_draw_buffers(context, rt_mask);
2373 *cur_mask = rt_mask;
2374 context_invalidate_state(context, STATE_FRAMEBUFFER);
2375 }
2376
2377 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2378 {
2379 context_check_fbo_status(context, GL_FRAMEBUFFER);
2380 }
2381
2382 if (context->last_was_blit)
2383 context->last_was_blit = FALSE;
2384
2385 /* Blending and clearing should be orthogonal, but tests on the nvidia
2386 * driver show that disabling blending when clearing improves the clearing
2387 * performance incredibly. */
2388 gl_info->gl_ops.gl.p_glDisable(GL_BLEND);
2389 gl_info->gl_ops.gl.p_glEnable(GL_SCISSOR_TEST);
2390 checkGLcall("glEnable GL_SCISSOR_TEST");
2391
2392 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
2393 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
2394 context_invalidate_state(context, STATE_SCISSORRECT);
2395
2396 return TRUE;
2397 }
2398
2399 static DWORD find_draw_buffers_mask(const struct wined3d_context *context, const struct wined3d_device *device)
2400 {
2401 const struct wined3d_state *state = &device->state;
2402 struct wined3d_rendertarget_view **rts = state->fb->render_targets;
2403 struct wined3d_shader *ps = state->shader[WINED3D_SHADER_TYPE_PIXEL];
2404 DWORD rt_mask, rt_mask_bits;
2405 unsigned int i;
2406
2407 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
2408 return context_generate_rt_mask_no_fbo(device, wined3d_rendertarget_view_get_surface(rts[0]));
2409 else if (!context->render_offscreen)
2410 return context_generate_rt_mask_from_surface(wined3d_rendertarget_view_get_surface(rts[0]));
2411
2412 rt_mask = ps ? ps->reg_maps.rt_mask : 1;
2413 rt_mask &= context->d3d_info->valid_rt_mask;
2414 rt_mask_bits = rt_mask;
2415 i = 0;
2416 while (rt_mask_bits)
2417 {
2418 rt_mask_bits &= ~(1 << i);
2419 if (!rts[i] || rts[i]->format->id == WINED3DFMT_NULL)
2420 rt_mask &= ~(1 << i);
2421
2422 i++;
2423 }
2424
2425 return rt_mask;
2426 }
2427
2428 /* Context activation is done by the caller. */
2429 void context_state_fb(struct wined3d_context *context, const struct wined3d_state *state, DWORD state_id)
2430 {
2431 const struct wined3d_device *device = context->swapchain->device;
2432 const struct wined3d_fb_state *fb = state->fb;
2433 DWORD rt_mask = find_draw_buffers_mask(context, device);
2434 DWORD *cur_mask;
2435
2436 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2437 {
2438 if (!context->render_offscreen)
2439 {
2440 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, WINED3D_LOCATION_DRAWABLE);
2441 }
2442 else
2443 {
2444 unsigned int i;
2445
2446 for (i = 0; i < context->gl_info->limits.buffers; ++i)
2447 {
2448 context->blit_targets[i] = wined3d_rendertarget_view_get_surface(fb->render_targets[i]);
2449 }
2450 context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets,
2451 wined3d_rendertarget_view_get_surface(fb->depth_stencil),
2452 fb->render_targets[0]->resource->draw_binding);
2453 }
2454 }
2455
2456 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2457 if (rt_mask != *cur_mask)
2458 {
2459 context_apply_draw_buffers(context, rt_mask);
2460 *cur_mask = rt_mask;
2461 }
2462 }
2463
2464 static void context_map_stage(struct wined3d_context *context, DWORD stage, DWORD unit)
2465 {
2466 DWORD i = context->rev_tex_unit_map[unit];
2467 DWORD j = context->tex_unit_map[stage];
2468
2469 context->tex_unit_map[stage] = unit;
2470 if (i != WINED3D_UNMAPPED_STAGE && i != stage)
2471 context->tex_unit_map[i] = WINED3D_UNMAPPED_STAGE;
2472
2473 context->rev_tex_unit_map[unit] = stage;
2474 if (j != WINED3D_UNMAPPED_STAGE && j != unit)
2475 context->rev_tex_unit_map[j] = WINED3D_UNMAPPED_STAGE;
2476 }
2477
2478 static void context_invalidate_texture_stage(struct wined3d_context *context, DWORD stage)
2479 {
2480 DWORD i;
2481
2482 for (i = 0; i <= WINED3D_HIGHEST_TEXTURE_STATE; ++i)
2483 context_invalidate_state(context, STATE_TEXTURESTAGE(stage, i));
2484 }
2485
2486 static void context_update_fixed_function_usage_map(struct wined3d_context *context,
2487 const struct wined3d_state *state)
2488 {
2489 UINT i, start, end;
2490
2491 context->fixed_function_usage_map = 0;
2492 for (i = 0; i < MAX_TEXTURES; ++i)
2493 {
2494 enum wined3d_texture_op color_op = state->texture_states[i][WINED3D_TSS_COLOR_OP];
2495 enum wined3d_texture_op alpha_op = state->texture_states[i][WINED3D_TSS_ALPHA_OP];
2496 DWORD color_arg1 = state->texture_states[i][WINED3D_TSS_COLOR_ARG1] & WINED3DTA_SELECTMASK;
2497 DWORD color_arg2 = state->texture_states[i][WINED3D_TSS_COLOR_ARG2] & WINED3DTA_SELECTMASK;
2498 DWORD color_arg3 = state->texture_states[i][WINED3D_TSS_COLOR_ARG0] & WINED3DTA_SELECTMASK;
2499 DWORD alpha_arg1 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG1] & WINED3DTA_SELECTMASK;
2500 DWORD alpha_arg2 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG2] & WINED3DTA_SELECTMASK;
2501 DWORD alpha_arg3 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG0] & WINED3DTA_SELECTMASK;
2502
2503 /* Not used, and disable higher stages. */
2504 if (color_op == WINED3D_TOP_DISABLE)
2505 break;
2506
2507 if (((color_arg1 == WINED3DTA_TEXTURE) && color_op != WINED3D_TOP_SELECT_ARG2)
2508 || ((color_arg2 == WINED3DTA_TEXTURE) && color_op != WINED3D_TOP_SELECT_ARG1)
2509 || ((color_arg3 == WINED3DTA_TEXTURE)
2510 && (color_op == WINED3D_TOP_MULTIPLY_ADD || color_op == WINED3D_TOP_LERP))
2511 || ((alpha_arg1 == WINED3DTA_TEXTURE) && alpha_op != WINED3D_TOP_SELECT_ARG2)
2512 || ((alpha_arg2 == WINED3DTA_TEXTURE) && alpha_op != WINED3D_TOP_SELECT_ARG1)
2513 || ((alpha_arg3 == WINED3DTA_TEXTURE)
2514 && (alpha_op == WINED3D_TOP_MULTIPLY_ADD || alpha_op == WINED3D_TOP_LERP)))
2515 context->fixed_function_usage_map |= (1 << i);
2516
2517 if ((color_op == WINED3D_TOP_BUMPENVMAP || color_op == WINED3D_TOP_BUMPENVMAP_LUMINANCE)
2518 && i < MAX_TEXTURES - 1)
2519 context->fixed_function_usage_map |= (1 << (i + 1));
2520 }
2521
2522 if (i < context->lowest_disabled_stage)
2523 {
2524 start = i;
2525 end = context->lowest_disabled_stage;
2526 }
2527 else
2528 {
2529 start = context->lowest_disabled_stage;
2530 end = i;
2531 }
2532
2533 context->lowest_disabled_stage = i;
2534 for (i = start + 1; i < end; ++i)
2535 {
2536 context_invalidate_state(context, STATE_TEXTURESTAGE(i, WINED3D_TSS_COLOR_OP));
2537 }
2538 }
2539
2540 static void context_map_fixed_function_samplers(struct wined3d_context *context,
2541 const struct wined3d_state *state)
2542 {
2543 unsigned int i, tex;
2544 WORD ffu_map;
2545 const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2546
2547 context_update_fixed_function_usage_map(context, state);
2548 ffu_map = context->fixed_function_usage_map;
2549
2550 if (d3d_info->limits.ffp_textures == d3d_info->limits.ffp_blend_stages
2551 || context->lowest_disabled_stage <= d3d_info->limits.ffp_textures)
2552 {
2553 for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2554 {
2555 if (!(ffu_map & 1))
2556 continue;
2557
2558 if (context->tex_unit_map[i] != i)
2559 {
2560 context_map_stage(context, i, i);
2561 context_invalidate_state(context, STATE_SAMPLER(i));
2562 context_invalidate_texture_stage(context, i);
2563 }
2564 }
2565 return;
2566 }
2567
2568 /* Now work out the mapping */
2569 tex = 0;
2570 for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2571 {
2572 if (!(ffu_map & 1))
2573 continue;
2574
2575 if (context->tex_unit_map[i] != tex)
2576 {
2577 context_map_stage(context, i, tex);
2578 context_invalidate_state(context, STATE_SAMPLER(i));
2579 context_invalidate_texture_stage(context, i);
2580 }
2581
2582 ++tex;
2583 }
2584 }
2585
2586 static void context_map_psamplers(struct wined3d_context *context, const struct wined3d_state *state)
2587 {
2588 const enum wined3d_sampler_texture_type *sampler_type =
2589 state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.sampler_type;
2590 unsigned int i;
2591 const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2592
2593 for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i)
2594 {
2595 if (sampler_type[i] && context->tex_unit_map[i] != i)
2596 {
2597 context_map_stage(context, i, i);
2598 context_invalidate_state(context, STATE_SAMPLER(i));
2599 if (i < d3d_info->limits.ffp_blend_stages)
2600 context_invalidate_texture_stage(context, i);
2601 }
2602 }
2603 }
2604
2605 static BOOL context_unit_free_for_vs(const struct wined3d_context *context,
2606 const enum wined3d_sampler_texture_type *pshader_sampler_tokens,
2607 const enum wined3d_sampler_texture_type *vshader_sampler_tokens, DWORD unit)
2608 {
2609 DWORD current_mapping = context->rev_tex_unit_map[unit];
2610
2611 /* Not currently used */
2612 if (current_mapping == WINED3D_UNMAPPED_STAGE)
2613 return TRUE;
2614
2615 if (current_mapping < MAX_FRAGMENT_SAMPLERS)
2616 {
2617 /* Used by a fragment sampler */
2618
2619 if (!pshader_sampler_tokens)
2620 {
2621 /* No pixel shader, check fixed function */
2622 return current_mapping >= MAX_TEXTURES || !(context->fixed_function_usage_map & (1 << current_mapping));
2623 }
2624
2625 /* Pixel shader, check the shader's sampler map */
2626 return !pshader_sampler_tokens[current_mapping];
2627 }
2628
2629 /* Used by a vertex sampler */
2630 return !vshader_sampler_tokens[current_mapping - MAX_FRAGMENT_SAMPLERS];
2631 }
2632
2633 static void context_map_vsamplers(struct wined3d_context *context, BOOL ps, const struct wined3d_state *state)
2634 {
2635 const enum wined3d_sampler_texture_type *vshader_sampler_type =
2636 state->shader[WINED3D_SHADER_TYPE_VERTEX]->reg_maps.sampler_type;
2637 const enum wined3d_sampler_texture_type *pshader_sampler_type = NULL;
2638 const struct wined3d_gl_info *gl_info = context->gl_info;
2639 int start = min(MAX_COMBINED_SAMPLERS, gl_info->limits.combined_samplers) - 1;
2640 int i;
2641
2642 if (ps)
2643 {
2644 /* Note that we only care if a sampler is sampled or not, not the sampler's specific type.
2645 * Otherwise we'd need to call shader_update_samplers() here for 1.x pixelshaders. */
2646 pshader_sampler_type = state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.sampler_type;
2647 }
2648
2649 for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i) {
2650 DWORD vsampler_idx = i + MAX_FRAGMENT_SAMPLERS;
2651 if (vshader_sampler_type[i])
2652 {
2653 if (context->tex_unit_map[vsampler_idx] != WINED3D_UNMAPPED_STAGE)
2654 {
2655 /* Already mapped somewhere */
2656 continue;
2657 }
2658
2659 while (start >= 0)
2660 {
2661 if (context_unit_free_for_vs(context, pshader_sampler_type, vshader_sampler_type, start))
2662 {
2663 context_map_stage(context, vsampler_idx, start);
2664 context_invalidate_state(context, STATE_SAMPLER(vsampler_idx));
2665
2666 --start;
2667 break;
2668 }
2669
2670 --start;
2671 }
2672 }
2673 }
2674 }
2675
2676 static void context_update_tex_unit_map(struct wined3d_context *context, const struct wined3d_state *state)
2677 {
2678 BOOL vs = use_vs(state);
2679 BOOL ps = use_ps(state);
2680 /*
2681 * Rules are:
2682 * -> Pixel shaders need a 1:1 map. In theory the shader input could be mapped too, but
2683 * that would be really messy and require shader recompilation
2684 * -> When the mapping of a stage is changed, sampler and ALL texture stage states have
2685 * to be reset. Because of that try to work with a 1:1 mapping as much as possible
2686 */
2687 if (ps)
2688 context_map_psamplers(context, state);
2689 else
2690 context_map_fixed_function_samplers(context, state);
2691
2692 if (vs)
2693 context_map_vsamplers(context, ps, state);
2694 }
2695
2696 /* Context activation is done by the caller. */
2697 void context_state_drawbuf(struct wined3d_context *context, const struct wined3d_state *state, DWORD state_id)
2698 {
2699 const struct wined3d_device *device = context->swapchain->device;
2700 DWORD rt_mask, *cur_mask;
2701
2702 if (isStateDirty(context, STATE_FRAMEBUFFER)) return;
2703
2704 cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2705 rt_mask = find_draw_buffers_mask(context, device);
2706 if (rt_mask != *cur_mask)
2707 {
2708 context_apply_draw_buffers(context, rt_mask);
2709 *cur_mask = rt_mask;
2710 }
2711 }
2712
2713 static BOOL fixed_get_input(BYTE usage, BYTE usage_idx, unsigned int *regnum)
2714 {
2715 if ((usage == WINED3D_DECL_USAGE_POSITION || usage == WINED3D_DECL_USAGE_POSITIONT) && !usage_idx)
2716 *regnum = WINED3D_FFP_POSITION;
2717 else if (usage == WINED3D_DECL_USAGE_BLEND_WEIGHT && !usage_idx)
2718 *regnum = WINED3D_FFP_BLENDWEIGHT;
2719 else if (usage == WINED3D_DECL_USAGE_BLEND_INDICES && !usage_idx)
2720 *regnum = WINED3D_FFP_BLENDINDICES;
2721 else if (usage == WINED3D_DECL_USAGE_NORMAL && !usage_idx)
2722 *regnum = WINED3D_FFP_NORMAL;
2723 else if (usage == WINED3D_DECL_USAGE_PSIZE && !usage_idx)
2724 *regnum = WINED3D_FFP_PSIZE;
2725 else if (usage == WINED3D_DECL_USAGE_COLOR && !usage_idx)
2726 *regnum = WINED3D_FFP_DIFFUSE;
2727 else if (usage == WINED3D_DECL_USAGE_COLOR && usage_idx == 1)
2728 *regnum = WINED3D_FFP_SPECULAR;
2729 else if (usage == WINED3D_DECL_USAGE_TEXCOORD && usage_idx < WINED3DDP_MAXTEXCOORD)
2730 *regnum = WINED3D_FFP_TEXCOORD0 + usage_idx;
2731 else
2732 {
2733 FIXME("Unsupported input stream [usage=%s, usage_idx=%u].\n", debug_d3ddeclusage(usage), usage_idx);
2734 *regnum = ~0U;
2735 return FALSE;
2736 }
2737
2738 return TRUE;
2739 }
2740
2741 /* Context activation is done by the caller. */
2742 void context_stream_info_from_declaration(struct wined3d_context *context,
2743 const struct wined3d_state *state, struct wined3d_stream_info *stream_info)
2744 {
2745 /* We need to deal with frequency data! */
2746 struct wined3d_vertex_declaration *declaration = state->vertex_declaration;
2747 BOOL use_vshader = use_vs(state);
2748 unsigned int i;
2749
2750 stream_info->use_map = 0;
2751 stream_info->swizzle_map = 0;
2752 stream_info->position_transformed = declaration->position_transformed;
2753
2754 /* Translate the declaration into strided data. */
2755 for (i = 0; i < declaration->element_count; ++i)
2756 {
2757 const struct wined3d_vertex_declaration_element *element = &declaration->elements[i];
2758 const struct wined3d_stream_state *stream = &state->streams[element->input_slot];
2759 BOOL stride_used;
2760 unsigned int idx;
2761
2762 TRACE("%p Element %p (%u of %u).\n", declaration->elements,
2763 element, i + 1, declaration->element_count);
2764
2765 if (!stream->buffer)
2766 continue;
2767
2768 TRACE("offset %u input_slot %u usage_idx %d.\n", element->offset, element->input_slot, element->usage_idx);
2769
2770 if (use_vshader)
2771 {
2772 if (element->output_slot == ~0U)
2773 {
2774 /* TODO: Assuming vertexdeclarations are usually used with the
2775 * same or a similar shader, it might be worth it to store the
2776 * last used output slot and try that one first. */
2777 stride_used = vshader_get_input(state->shader[WINED3D_SHADER_TYPE_VERTEX],
2778 element->usage, element->usage_idx, &idx);
2779 }
2780 else
2781 {
2782 idx = element->output_slot;
2783 stride_used = TRUE;
2784 }
2785 }
2786 else
2787 {
2788 if (!element->ffp_valid)
2789 {
2790 WARN("Skipping unsupported fixed function element of format %s and usage %s.\n",
2791 debug_d3dformat(element->format->id), debug_d3ddeclusage(element->usage));
2792 stride_used = FALSE;
2793 }
2794 else
2795 {
2796 stride_used = fixed_get_input(element->usage, element->usage_idx, &idx);
2797 }
2798 }
2799
2800 if (stride_used)
2801 {
2802 TRACE("Load %s array %u [usage %s, usage_idx %u, "
2803 "input_slot %u, offset %u, stride %u, format %s].\n",
2804 use_vshader ? "shader": "fixed function", idx,
2805 debug_d3ddeclusage(element->usage), element->usage_idx, element->input_slot,
2806 element->offset, stream->stride, debug_d3dformat(element->format->id));
2807
2808 stream_info->elements[idx].format = element->format;
2809 stream_info->elements[idx].data.buffer_object = 0;
2810 stream_info->elements[idx].data.addr = (BYTE *)NULL + stream->offset + element->offset;
2811 stream_info->elements[idx].stride = stream->stride;
2812 stream_info->elements[idx].stream_idx = element->input_slot;
2813
2814 if (!context->gl_info->supported[ARB_VERTEX_ARRAY_BGRA]
2815 && element->format->id == WINED3DFMT_B8G8R8A8_UNORM)
2816 {
2817 stream_info->swizzle_map |= 1 << idx;
2818 }
2819 stream_info->use_map |= 1 << idx;
2820 }
2821 }
2822 }
2823
2824 /* Context activation is done by the caller. */
2825 static void context_update_stream_info(struct wined3d_context *context, const struct wined3d_state *state)
2826 {
2827 const struct wined3d_gl_info *gl_info = context->gl_info;
2828 const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2829 struct wined3d_stream_info *stream_info = &context->stream_info;
2830 DWORD prev_all_vbo = stream_info->all_vbo;
2831 unsigned int i;
2832 WORD map;
2833
2834 context_stream_info_from_declaration(context, state, stream_info);
2835
2836 stream_info->all_vbo = 1;
2837 context->num_buffer_queries = 0;
2838 for (i = 0, map = stream_info->use_map; map; map >>= 1, ++i)
2839 {
2840 struct wined3d_stream_info_element *element;
2841 struct wined3d_bo_address data;
2842 struct wined3d_buffer *buffer;
2843
2844 if (!(map & 1))
2845 continue;
2846
2847 element = &stream_info->elements[i];
2848 buffer = state->streams[element->stream_idx].buffer;
2849
2850 /* We can't use VBOs if the base vertex index is negative. OpenGL
2851 * doesn't accept negative offsets (or rather offsets bigger than the
2852 * VBO, because the pointer is unsigned), so use system memory
2853 * sources. In most sane cases the pointer - offset will still be > 0,
2854 * otherwise it will wrap around to some big value. Hope that with the
2855 * indices the driver wraps it back internally. If not,
2856 * drawStridedSlow is needed, including a vertex buffer path. */
2857 if (state->load_base_vertex_index < 0)
2858 {
2859 WARN_(d3d_perf)("load_base_vertex_index is < 0 (%d), not using VBOs.\n",
2860 state->load_base_vertex_index);
2861 element->data.buffer_object = 0;
2862 element->data.addr += (ULONG_PTR)buffer_get_sysmem(buffer, context);
2863 if ((UINT_PTR)element->data.addr < -state->load_base_vertex_index * element->stride)
2864 FIXME("System memory vertex data load offset is negative!\n");
2865 }
2866 else
2867 {
2868 buffer_internal_preload(buffer, context, state);
2869 buffer_get_memory(buffer, context, &data);
2870 element->data.buffer_object = data.buffer_object;
2871 element->data.addr += (ULONG_PTR)data.addr;
2872 }
2873
2874 if (!element->data.buffer_object)
2875 stream_info->all_vbo = 0;
2876
2877 if (buffer->query)
2878 context->buffer_queries[context->num_buffer_queries++] = buffer->query;
2879
2880 TRACE("Load array %u {%#x:%p}.\n", i, element->data.buffer_object, element->data.addr);
2881 }
2882
2883 if (use_vs(state))
2884 {
2885 if (state->vertex_declaration->half_float_conv_needed && !stream_info->all_vbo)
2886 {
2887 TRACE("Using drawStridedSlow with vertex shaders for FLOAT16 conversion.\n");
2888 context->use_immediate_mode_draw = TRUE;
2889 }
2890 else
2891 {
2892 context->use_immediate_mode_draw = FALSE;
2893 }
2894 }
2895 else
2896 {
2897 WORD slow_mask = (1 << WINED3D_FFP_PSIZE);
2898 slow_mask |= -!gl_info->supported[ARB_VERTEX_ARRAY_BGRA]
2899 & ((1 << WINED3D_FFP_DIFFUSE) | (1 << WINED3D_FFP_SPECULAR));
2900
2901 if (((stream_info->position_transformed && !d3d_info->xyzrhw)
2902 || (stream_info->use_map & slow_mask)) && !stream_info->all_vbo)
2903 context->use_immediate_mode_draw = TRUE;
2904 else
2905 context->use_immediate_mode_draw = FALSE;
2906 }
2907
2908 if (prev_all_vbo != stream_info->all_vbo)
2909 context_invalidate_state(context, STATE_INDEXBUFFER);
2910 }
2911
2912 /* Context activation is done by the caller. */
2913 static void context_preload_texture(struct wined3d_context *context,
2914 const struct wined3d_state *state, unsigned int idx)
2915 {
2916 struct wined3d_texture *texture;
2917
2918 if (!(texture = state->textures[idx]))
2919 return;
2920
2921 wined3d_texture_load(texture, context, state->sampler_states[idx][WINED3D_SAMP_SRGB_TEXTURE]);
2922 }
2923
2924 /* Context activation is done by the caller. */
2925 static void context_preload_textures(struct wined3d_context *context, const struct wined3d_state *state)
2926 {
2927 unsigned int i;
2928
2929 if (use_vs(state))
2930 {
2931 for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i)
2932 {
2933 if (state->shader[WINED3D_SHADER_TYPE_VERTEX]->reg_maps.sampler_type[i])
2934 context_preload_texture(context, state, MAX_FRAGMENT_SAMPLERS + i);
2935 }
2936 }
2937
2938 if (use_ps(state))
2939 {
2940 for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i)
2941 {
2942 if (state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.sampler_type[i])
2943 context_preload_texture(context, state, i);
2944 }
2945 }
2946 else
2947 {
2948 WORD ffu_map = context->fixed_function_usage_map;
2949
2950 for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2951 {
2952 if (ffu_map & 1)
2953 context_preload_texture(context, state, i);
2954 }
2955 }
2956 }
2957
2958 /* Context activation is done by the caller. */
2959 BOOL context_apply_draw_state(struct wined3d_context *context, struct wined3d_device *device)
2960 {
2961 const struct wined3d_state *state = &device->state;
2962 const struct StateEntry *state_table = context->state_table;
2963 const struct wined3d_fb_state *fb = state->fb;
2964 unsigned int i, j;
2965 WORD map;
2966
2967 if (!context_validate_rt_config(context->gl_info->limits.buffers,
2968 fb->render_targets, fb->depth_stencil))
2969 return FALSE;
2970
2971 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO && isStateDirty(context, STATE_FRAMEBUFFER))
2972 {
2973 context_validate_onscreen_formats(context, fb->depth_stencil);
2974 }
2975
2976 /* Preload resources before FBO setup. Texture preload in particular may
2977 * result in changes to the current FBO, due to using e.g. FBO blits for
2978 * updating a resource location. */
2979 context_update_tex_unit_map(context, state);
2980 context_preload_textures(context, state);
2981 if (isStateDirty(context, STATE_VDECL) || isStateDirty(context, STATE_STREAMSRC))
2982 {
2983 context_update_stream_info(context, state);
2984 }
2985 else
2986 {
2987 for (i = 0, map = context->stream_info.use_map; map; map >>= 1, ++i)
2988 {
2989 if (map & 1)
2990 buffer_mark_used(state->streams[context->stream_info.elements[i].stream_idx].buffer);
2991 }
2992 }
2993 if (state->index_buffer)
2994 {
2995 if (context->stream_info.all_vbo)
2996 buffer_internal_preload(state->index_buffer, context, state);
2997 else
2998 buffer_get_sysmem(state->index_buffer, context);
2999 }
3000
3001 for (i = 0; i < WINED3D_SHADER_TYPE_COUNT; ++i)
3002 {
3003 for (j = 0; j < WINED3D_MAX_CBS; ++j)
3004 {
3005 if (state->cb[i][j])
3006 buffer_internal_preload(state->cb[i][j], context, state);
3007 }
3008 }
3009
3010 for (i = 0; i < context->numDirtyEntries; ++i)
3011 {
3012 DWORD rep = context->dirtyArray[i];
3013 DWORD idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
3014 BYTE shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
3015 context->isStateDirty[idx] &= ~(1 << shift);
3016 state_table[rep].apply(context, state, rep);
3017 }
3018
3019 if (context->shader_update_mask)
3020 {
3021 device->shader_backend->shader_select(device->shader_priv, context, state);
3022 context->shader_update_mask = 0;
3023 }
3024
3025 if (context->constant_update_mask)
3026 {
3027 device->shader_backend->shader_load_constants(device->shader_priv, context, state);
3028 context->constant_update_mask = 0;
3029 }
3030
3031 if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
3032 {
3033 context_check_fbo_status(context, GL_FRAMEBUFFER);
3034 }
3035
3036 context->numDirtyEntries = 0; /* This makes the whole list clean */
3037 context->last_was_blit = FALSE;
3038
3039 return TRUE;
3040 }
3041
3042 static void context_setup_target(struct wined3d_context *context, struct wined3d_surface *target)
3043 {
3044 BOOL old_render_offscreen = context->render_offscreen, render_offscreen;
3045
3046 render_offscreen = wined3d_resource_is_offscreen(&target->resource);
3047 if (context->current_rt == target && render_offscreen == old_render_offscreen) return;
3048
3049 /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
3050 * the alpha blend state changes with different render target formats. */
3051 if (!context->current_rt)
3052 {
3053 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
3054 }
3055 else
3056 {
3057 const struct wined3d_format *old = context->current_rt->resource.format;
3058 const struct wined3d_format *new = target->resource.format;
3059
3060 if (old->id != new->id)
3061 {
3062 /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
3063 if ((old->alpha_size && !new->alpha_size) || (!old->alpha_size && new->alpha_size)
3064 || !(new->flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING))
3065 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
3066
3067 /* Update sRGB writing when switching between formats that do/do not support sRGB writing */
3068 if ((old->flags & WINED3DFMT_FLAG_SRGB_WRITE) != (new->flags & WINED3DFMT_FLAG_SRGB_WRITE))
3069 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SRGBWRITEENABLE));
3070 }
3071
3072 /* When switching away from an offscreen render target, and we're not
3073 * using FBOs, we have to read the drawable into the texture. This is
3074 * done via PreLoad (and WINED3D_LOCATION_DRAWABLE set on the surface).
3075 * There are some things that need care though. PreLoad needs a GL context,
3076 * and FindContext is called before the context is activated. It also
3077 * has to be called with the old rendertarget active, otherwise a
3078 * wrong drawable is read. */
3079 if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
3080 && old_render_offscreen && context->current_rt != target)
3081 {
3082 struct wined3d_texture *texture = context->current_rt->container;
3083
3084 /* Read the back buffer of the old drawable into the destination texture. */
3085 if (texture->texture_srgb.name)
3086 wined3d_texture_load(texture, context, TRUE);
3087 wined3d_texture_load(texture, context, FALSE);
3088 surface_invalidate_location(context->current_rt, WINED3D_LOCATION_DRAWABLE);
3089 }
3090 }
3091
3092 context->current_rt = target;
3093 context_set_render_offscreen(context, render_offscreen);
3094 }
3095
3096 struct wined3d_context *context_acquire(const struct wined3d_device *device, struct wined3d_surface *target)
3097 {
3098 struct wined3d_context *current_context = context_get_current();
3099 struct wined3d_context *context;
3100
3101 TRACE("device %p, target %p.\n", device, target);
3102
3103 if (current_context && current_context->destroyed)
3104 current_context = NULL;
3105
3106 if (!target)
3107 {
3108 if (current_context
3109 && current_context->current_rt
3110 && current_context->swapchain->device == device)
3111 {
3112 target = current_context->current_rt;
3113 }
3114 else
3115 {
3116 struct wined3d_swapchain *swapchain = device->swapchains[0];
3117 if (swapchain->back_buffers)
3118 target = surface_from_resource(wined3d_texture_get_sub_resource(swapchain->back_buffers[0], 0));
3119 else
3120 target = surface_from_resource(wined3d_texture_get_sub_resource(swapchain->front_buffer, 0));
3121 }
3122 }
3123
3124 if (current_context && current_context->current_rt == target)
3125 {
3126 context = current_context;
3127 }
3128 else if (target->container->swapchain)
3129 {
3130 TRACE("Rendering onscreen.\n");
3131
3132 context = swapchain_get_context(target->container->swapchain);
3133 }
3134 else
3135 {
3136 TRACE("Rendering offscreen.\n");
3137
3138 /* Stay with the current context if possible. Otherwise use the
3139 * context for the primary swapchain. */
3140 if (current_context && current_context->swapchain->device == device)
3141 context = current_context;
3142 else
3143 context = swapchain_get_context(device->swapchains[0]);
3144 }
3145
3146 context_enter(context);
3147 context_update_window(context);
3148 context_setup_target(context, target);
3149 if (!context->valid) return context;
3150
3151 if (context != current_context)
3152 {
3153 if (!context_set_current(context))
3154 ERR("Failed to activate the new context.\n");
3155 }
3156 else if (context->needs_set)
3157 {
3158 context_set_gl_context(context);
3159 }
3160
3161 return context;
3162 }
Windows API implementation