context.c@ 41481

Last change on this file since 41481 was 41481, checked in by vboxsync, 13 years ago
wddm/3d: a bit more logging
Property svn:eol-style set to `native`
File size: 100.9 KB

Line
1	/*
2	* Context and render target management in wined3d
3	*
4	* Copyright 2007-2008 Stefan Dösinger for CodeWeavers
5	* Copyright 2009 Henri Verbeet for CodeWeavers
6	*
7	* This library is free software; you can redistribute it and/or
8	* modify it under the terms of the GNU Lesser General Public
9	* License as published by the Free Software Foundation; either
10	* version 2.1 of the License, or (at your option) any later version.
11	*
12	* This library is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15	* Lesser General Public License for more details.
16	*
17	* You should have received a copy of the GNU Lesser General Public
18	* License along with this library; if not, write to the Free Software
19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20	*/
21
22	/*
23	* Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
24	* other than GPL or LGPL is available it will apply instead, Oracle elects to use only
25	* the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
26	* a choice of LGPL license versions is made available with the language indicating
27	* that LGPLv2 or any later version may be used, or where a choice of which version
28	* of the LGPL is applied is otherwise unspecified.
29	*/
30
31	#include "config.h"
32	#include <stdio.h>
33	#ifdef HAVE_FLOAT_H
34	# include <float.h>
35	#endif
36	#include "wined3d_private.h"
37
38	WINE_DEFAULT_DEBUG_CHANNEL(d3d);
39
40	#define GLINFO_LOCATION (*gl_info)
41
42	static DWORD wined3d_context_tls_idx;
43
44	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
45	# define vboxGetCurrentContext() VBoxTlsRefGetCurrent(struct wined3d_context, wined3d_context_tls_idx)
46	# define vboxSetCurrentContext(_ctx) VBoxTlsRefSetCurrent(struct wined3d_context, wined3d_context_tls_idx, (_ctx))
47	#endif
48
49	/* FBO helper functions */
50
51	/* GL locking is done by the caller */
52	void context_bind_fbo(struct wined3d_context context, GLenum target, GLuint fbo)
53	{
54	const struct wined3d_gl_info *gl_info = context->gl_info;
55	GLuint f;
56
57	if (!fbo)
58	{
59	f = 0;
60	}
61	else
62	{
63	if (!*fbo)
64	{
65	gl_info->fbo_ops.glGenFramebuffers(1, fbo);
66	checkGLcall("glGenFramebuffers()");
67	TRACE("Created FBO %u.\n", *fbo);
68	}
69	f = *fbo;
70	}
71
72	switch (target)
73	{
74	case GL_READ_FRAMEBUFFER:
75	if (context->fbo_read_binding == f) return;
76	context->fbo_read_binding = f;
77	break;
78
79	case GL_DRAW_FRAMEBUFFER:
80	if (context->fbo_draw_binding == f) return;
81	context->fbo_draw_binding = f;
82	break;
83
84	case GL_FRAMEBUFFER:
85	if (context->fbo_read_binding == f
86	&& context->fbo_draw_binding == f) return;
87	context->fbo_read_binding = f;
88	context->fbo_draw_binding = f;
89	break;
90
91	default:
92	FIXME("Unhandled target %#x.\n", target);
93	break;
94	}
95
96	gl_info->fbo_ops.glBindFramebuffer(target, f);
97	checkGLcall("glBindFramebuffer()");
98	}
99
100	/* GL locking is done by the caller */
101	static void context_clean_fbo_attachments(const struct wined3d_gl_info *gl_info)
102	{
103	unsigned int i;
104
105	for (i = 0; i < gl_info->limits.buffers; ++i)
106	{
107	gl_info->fbo_ops.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, 0, 0);
108	checkGLcall("glFramebufferTexture2D()");
109	}
110	gl_info->fbo_ops.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
111	checkGLcall("glFramebufferTexture2D()");
112
113	gl_info->fbo_ops.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
114	checkGLcall("glFramebufferTexture2D()");
115	}
116
117	/* GL locking is done by the caller */
118	static void context_destroy_fbo(struct wined3d_context context, GLuint fbo)
119	{
120	const struct wined3d_gl_info *gl_info = context->gl_info;
121
122	context_bind_fbo(context, GL_FRAMEBUFFER, fbo);
123	context_clean_fbo_attachments(gl_info);
124	context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
125
126	gl_info->fbo_ops.glDeleteFramebuffers(1, fbo);
127	checkGLcall("glDeleteFramebuffers()");
128	}
129
130	/* GL locking is done by the caller */
131	static void context_apply_attachment_filter_states(IWineD3DSurfaceImpl *surface)
132	{
133	IWineD3DBaseTextureImpl *texture_impl;
134
135	/* Update base texture states array */
136	if (SUCCEEDED(IWineD3DSurface_GetContainer((IWineD3DSurface *)surface,
137	&IID_IWineD3DBaseTexture, (void **)&texture_impl)))
138	{
139	IWineD3DDeviceImpl *device = surface->resource.device;
140	BOOL update_minfilter = FALSE;
141	BOOL update_magfilter = FALSE;
142
143	if (texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MINFILTER] != WINED3DTEXF_POINT
144	\|\| texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MIPFILTER] != WINED3DTEXF_NONE)
145	{
146	texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MINFILTER] = WINED3DTEXF_POINT;
147	texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MIPFILTER] = WINED3DTEXF_NONE;
148	update_minfilter = TRUE;
149	}
150
151	if (texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MAGFILTER] != WINED3DTEXF_POINT)
152	{
153	texture_impl->baseTexture.texture_rgb.states[WINED3DTEXSTA_MAGFILTER] = WINED3DTEXF_POINT;
154	update_magfilter = TRUE;
155	}
156
157	if (texture_impl->baseTexture.bindCount)
158	{
159	WARN("Render targets should not be bound to a sampler\n");
160	IWineD3DDeviceImpl_MarkStateDirty(device, STATE_SAMPLER(texture_impl->baseTexture.sampler));
161	}
162
163	IWineD3DBaseTexture_Release((IWineD3DBaseTexture *)texture_impl);
164
165	if (update_minfilter \|\| update_magfilter)
166	{
167	GLenum target, bind_target;
168	GLint old_binding;
169
170	target = surface->texture_target;
171	if (target == GL_TEXTURE_2D)
172	{
173	bind_target = GL_TEXTURE_2D;
174	glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_binding);
175	}
176	else if (target == GL_TEXTURE_RECTANGLE_ARB)
177	{
178	bind_target = GL_TEXTURE_RECTANGLE_ARB;
179	glGetIntegerv(GL_TEXTURE_BINDING_RECTANGLE_ARB, &old_binding);
180	}
181	else
182	{
183	bind_target = GL_TEXTURE_CUBE_MAP_ARB;
184	glGetIntegerv(GL_TEXTURE_BINDING_CUBE_MAP_ARB, &old_binding);
185	}
186
187	glBindTexture(bind_target, surface->texture_name);
188	if (update_minfilter) glTexParameteri(bind_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
189	if (update_magfilter) glTexParameteri(bind_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
190	glBindTexture(bind_target, old_binding);
191	}
192
193	checkGLcall("apply_attachment_filter_states()");
194	}
195	}
196
197	/* GL locking is done by the caller */
198	void context_attach_depth_stencil_fbo(struct wined3d_context *context,
199	GLenum fbo_target, IWineD3DSurfaceImpl *depth_stencil, BOOL use_render_buffer)
200	{
201	const struct wined3d_gl_info *gl_info = context->gl_info;
202
203	TRACE("Attach depth stencil %p\n", depth_stencil);
204
205	if (depth_stencil)
206	{
207	DWORD format_flags = depth_stencil->resource.format_desc->Flags;
208
209	if (use_render_buffer && depth_stencil->current_renderbuffer)
210	{
211	if (format_flags & WINED3DFMT_FLAG_DEPTH)
212	{
213	gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_DEPTH_ATTACHMENT,
214	GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id);
215	checkGLcall("glFramebufferRenderbuffer()");
216	}
217
218	if (format_flags & WINED3DFMT_FLAG_STENCIL)
219	{
220	gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_STENCIL_ATTACHMENT,
221	GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id);
222	checkGLcall("glFramebufferRenderbuffer()");
223	}
224	}
225	else
226	{
227	surface_prepare_texture(depth_stencil, gl_info, FALSE);
228	context_apply_attachment_filter_states(depth_stencil);
229
230	if (format_flags & WINED3DFMT_FLAG_DEPTH)
231	{
232	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT,
233	depth_stencil->texture_target, depth_stencil->texture_name,
234	depth_stencil->texture_level);
235	checkGLcall("glFramebufferTexture2D()");
236	}
237
238	if (format_flags & WINED3DFMT_FLAG_STENCIL)
239	{
240	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT,
241	depth_stencil->texture_target, depth_stencil->texture_name,
242	depth_stencil->texture_level);
243	checkGLcall("glFramebufferTexture2D()");
244	}
245	}
246
247	if (!(format_flags & WINED3DFMT_FLAG_DEPTH))
248	{
249	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
250	checkGLcall("glFramebufferTexture2D()");
251	}
252
253	if (!(format_flags & WINED3DFMT_FLAG_STENCIL))
254	{
255	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
256	checkGLcall("glFramebufferTexture2D()");
257	}
258	}
259	else
260	{
261	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
262	checkGLcall("glFramebufferTexture2D()");
263
264	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
265	checkGLcall("glFramebufferTexture2D()");
266	}
267	}
268
269	/* GL locking is done by the caller */
270	void context_attach_surface_fbo(const struct wined3d_context *context,
271	GLenum fbo_target, DWORD idx, IWineD3DSurfaceImpl *surface)
272	{
273	const struct wined3d_gl_info *gl_info = context->gl_info;
274
275	TRACE("Attach surface %p to %u\n", surface, idx);
276
277	if (surface)
278	{
279	surface_prepare_texture(surface, gl_info, FALSE);
280	context_apply_attachment_filter_states(surface);
281
282	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, surface->texture_target,
283	surface->texture_name, surface->texture_level);
284	checkGLcall("glFramebufferTexture2D()");
285	}
286	else
287	{
288	gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, GL_TEXTURE_2D, 0, 0);
289	checkGLcall("glFramebufferTexture2D()");
290	}
291	}
292
293	/* GL locking is done by the caller */
294	static void context_check_fbo_status(struct wined3d_context *context)
295	{
296	const struct wined3d_gl_info *gl_info = context->gl_info;
297	GLenum status;
298
299	status = gl_info->fbo_ops.glCheckFramebufferStatus(GL_FRAMEBUFFER);
300	if (status == GL_FRAMEBUFFER_COMPLETE)
301	{
302	TRACE("FBO complete\n");
303	} else {
304	IWineD3DSurfaceImpl *attachment;
305	unsigned int i;
306	FIXME("FBO status %s (%#x)\n", debug_fbostatus(status), status);
307
308	if (!context->current_fbo)
309	{
310	ERR("FBO 0 is incomplete, driver bug?\n");
311	return;
312	}
313
314	/* Dump the FBO attachments */
315	for (i = 0; i < gl_info->limits.buffers; ++i)
316	{
317	attachment = context->current_fbo->render_targets[i];
318	if (attachment)
319	{
320	FIXME("\tColor attachment %d: (%p) %s %ux%u\n",
321	i, attachment, debug_d3dformat(attachment->resource.format_desc->format),
322	attachment->pow2Width, attachment->pow2Height);
323	}
324	}
325	attachment = context->current_fbo->depth_stencil;
326	if (attachment)
327	{
328	FIXME("\tDepth attachment: (%p) %s %ux%u\n",
329	attachment, debug_d3dformat(attachment->resource.format_desc->format),
330	attachment->pow2Width, attachment->pow2Height);
331	}
332	}
333	}
334
335	static struct fbo_entry context_create_fbo_entry(struct wined3d_context context)
336	{
337	const struct wined3d_gl_info *gl_info = context->gl_info;
338	IWineD3DDeviceImpl *device = context_get_device(context);
339	struct fbo_entry *entry;
340
341	entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
342	entry->render_targets = HeapAlloc(GetProcessHeap(), 0, gl_info->limits.buffers * sizeof(*entry->render_targets));
343	memcpy(entry->render_targets, device->render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
344	entry->depth_stencil = (IWineD3DSurfaceImpl *)device->stencilBufferTarget;
345	entry->attached = FALSE;
346	entry->id = 0;
347
348	return entry;
349	}
350
351	/* GL locking is done by the caller */
352	static void context_reuse_fbo_entry(struct wined3d_context context, struct fbo_entry entry)
353	{
354	const struct wined3d_gl_info *gl_info = context->gl_info;
355	IWineD3DDeviceImpl *device = context_get_device(context);
356
357	context_bind_fbo(context, GL_FRAMEBUFFER, &entry->id);
358	context_clean_fbo_attachments(gl_info);
359
360	memcpy(entry->render_targets, device->render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets));
361	entry->depth_stencil = (IWineD3DSurfaceImpl *)device->stencilBufferTarget;
362	entry->attached = FALSE;
363	}
364
365	/* GL locking is done by the caller */
366	static void context_destroy_fbo_entry(struct wined3d_context context, struct fbo_entry entry)
367	{
368	if (entry->id)
369	{
370	TRACE("Destroy FBO %d\n", entry->id);
371	context_destroy_fbo(context, &entry->id);
372	}
373	--context->fbo_entry_count;
374	list_remove(&entry->entry);
375	HeapFree(GetProcessHeap(), 0, entry->render_targets);
376	HeapFree(GetProcessHeap(), 0, entry);
377	}
378
379
380	/* GL locking is done by the caller */
381	static struct fbo_entry context_find_fbo_entry(struct wined3d_context context)
382	{
383	const struct wined3d_gl_info *gl_info = context->gl_info;
384	IWineD3DDeviceImpl *device = context_get_device(context);
385	struct fbo_entry *entry;
386
387	LIST_FOR_EACH_ENTRY(entry, &context->fbo_list, struct fbo_entry, entry)
388	{
389	if (!memcmp(entry->render_targets,
390	device->render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets))
391	&& entry->depth_stencil == (IWineD3DSurfaceImpl *)device->stencilBufferTarget)
392	{
393	list_remove(&entry->entry);
394	list_add_head(&context->fbo_list, &entry->entry);
395	return entry;
396	}
397	}
398
399	if (context->fbo_entry_count < WINED3D_MAX_FBO_ENTRIES)
400	{
401	entry = context_create_fbo_entry(context);
402	list_add_head(&context->fbo_list, &entry->entry);
403	++context->fbo_entry_count;
404	}
405	else
406	{
407	entry = LIST_ENTRY(list_tail(&context->fbo_list), struct fbo_entry, entry);
408	context_reuse_fbo_entry(context, entry);
409	list_remove(&entry->entry);
410	list_add_head(&context->fbo_list, &entry->entry);
411	}
412
413	return entry;
414	}
415
416	/* GL locking is done by the caller */
417	static void context_apply_fbo_entry(struct wined3d_context context, struct fbo_entry entry)
418	{
419	const struct wined3d_gl_info *gl_info = context->gl_info;
420	IWineD3DDeviceImpl *device = context_get_device(context);
421	unsigned int i;
422
423	context_bind_fbo(context, GL_FRAMEBUFFER, &entry->id);
424
425	if (!entry->attached)
426	{
427	/* Apply render targets */
428	for (i = 0; i < gl_info->limits.buffers; ++i)
429	{
430	IWineD3DSurfaceImpl render_target = (IWineD3DSurfaceImpl )device->render_targets[i];
431	context_attach_surface_fbo(context, GL_FRAMEBUFFER, i, render_target);
432	}
433
434	/* Apply depth targets */
435	if (device->stencilBufferTarget)
436	{
437	unsigned int w = ((IWineD3DSurfaceImpl *)device->render_targets[0])->pow2Width;
438	unsigned int h = ((IWineD3DSurfaceImpl *)device->render_targets[0])->pow2Height;
439
440	surface_set_compatible_renderbuffer(device->stencilBufferTarget, w, h);
441	}
442	context_attach_depth_stencil_fbo(context, GL_FRAMEBUFFER, (IWineD3DSurfaceImpl *)device->stencilBufferTarget, TRUE);
443
444	entry->attached = TRUE;
445	}
446	else
447	{
448	for (i = 0; i < gl_info->limits.buffers; ++i)
449	{
450	if (device->render_targets[i])
451	context_apply_attachment_filter_states((IWineD3DSurfaceImpl *)device->render_targets[i]);
452	}
453	if (device->stencilBufferTarget)
454	context_apply_attachment_filter_states((IWineD3DSurfaceImpl *)device->stencilBufferTarget);
455	}
456
457	for (i = 0; i < gl_info->limits.buffers; ++i)
458	{
459	if (device->render_targets[i])
460	device->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
461	else
462	device->draw_buffers[i] = GL_NONE;
463	}
464	}
465
466	/* GL locking is done by the caller */
467	static void context_apply_fbo_state(struct wined3d_context *context)
468	{
469	struct fbo_entry entry, entry2;
470
471	LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
472	{
473	context_destroy_fbo_entry(context, entry);
474	}
475
476	if (context->rebind_fbo)
477	{
478	context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
479	context->rebind_fbo = FALSE;
480	}
481
482	if (context->render_offscreen)
483	{
484	context->current_fbo = context_find_fbo_entry(context);
485	context_apply_fbo_entry(context, context->current_fbo);
486	} else {
487	context->current_fbo = NULL;
488	context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
489	}
490
491	#if defined(DEBUG) && !defined(DEBUG_misha)
492	context_check_fbo_status(context);
493	#endif
494	}
495
496	/* Context activation is done by the caller. */
497	void context_alloc_occlusion_query(struct wined3d_context context, struct wined3d_occlusion_query query)
498	{
499	const struct wined3d_gl_info *gl_info = context->gl_info;
500
501	if (context->free_occlusion_query_count)
502	{
503	query->id = context->free_occlusion_queries[--context->free_occlusion_query_count];
504	}
505	else
506	{
507	if (gl_info->supported[ARB_OCCLUSION_QUERY])
508	{
509	ENTER_GL();
510	GL_EXTCALL(glGenQueriesARB(1, &query->id));
511	checkGLcall("glGenQueriesARB");
512	LEAVE_GL();
513
514	TRACE("Allocated occlusion query %u in context %p.\n", query->id, context);
515	}
516	else
517	{
518	WARN("Occlusion queries not supported, not allocating query id.\n");
519	query->id = 0;
520	}
521	}
522
523	query->context = context;
524	list_add_head(&context->occlusion_queries, &query->entry);
525	}
526
527	void context_free_occlusion_query(struct wined3d_occlusion_query *query)
528	{
529	struct wined3d_context *context = query->context;
530
531	list_remove(&query->entry);
532	query->context = NULL;
533
534	if (context->free_occlusion_query_count >= context->free_occlusion_query_size - 1)
535	{
536	UINT new_size = context->free_occlusion_query_size << 1;
537	GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_occlusion_queries,
538	new_size * sizeof(*context->free_occlusion_queries));
539
540	if (!new_data)
541	{
542	ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
543	return;
544	}
545
546	context->free_occlusion_query_size = new_size;
547	context->free_occlusion_queries = new_data;
548	}
549
550	context->free_occlusion_queries[context->free_occlusion_query_count++] = query->id;
551	}
552
553	/* Context activation is done by the caller. */
554	void context_alloc_event_query(struct wined3d_context context, struct wined3d_event_query query)
555	{
556	const struct wined3d_gl_info *gl_info = context->gl_info;
557
558	if (context->free_event_query_count)
559	{
560	query->object = context->free_event_queries[--context->free_event_query_count];
561	}
562	else
563	{
564	if (gl_info->supported[ARB_SYNC])
565	{
566	/* Using ARB_sync, not much to do here. */
567	query->object.sync = NULL;
568	TRACE("Allocated event query %p in context %p.\n", query->object.sync, context);
569	}
570	else if (gl_info->supported[APPLE_FENCE])
571	{
572	ENTER_GL();
573	GL_EXTCALL(glGenFencesAPPLE(1, &query->object.id));
574	checkGLcall("glGenFencesAPPLE");
575	LEAVE_GL();
576
577	TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
578	}
579	else if(gl_info->supported[NV_FENCE])
580	{
581	ENTER_GL();
582	GL_EXTCALL(glGenFencesNV(1, &query->object.id));
583	checkGLcall("glGenFencesNV");
584	LEAVE_GL();
585
586	TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
587	}
588	else
589	{
590	WARN("Event queries not supported, not allocating query id.\n");
591	query->object.id = 0;
592	}
593	}
594
595	query->context = context;
596	list_add_head(&context->event_queries, &query->entry);
597	}
598
599	void context_free_event_query(struct wined3d_event_query *query)
600	{
601	struct wined3d_context *context = query->context;
602
603	list_remove(&query->entry);
604	query->context = NULL;
605
606	if (context->free_event_query_count >= context->free_event_query_size - 1)
607	{
608	UINT new_size = context->free_event_query_size << 1;
609	union wined3d_gl_query_object *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_event_queries,
610	new_size * sizeof(*context->free_event_queries));
611
612	if (!new_data)
613	{
614	ERR("Failed to grow free list, leaking query %u in context %p.\n", query->object.id, context);
615	return;
616	}
617
618	context->free_event_query_size = new_size;
619	context->free_event_queries = new_data;
620	}
621
622	context->free_event_queries[context->free_event_query_count++] = query->object;
623	}
624
625	void context_resource_released(IWineD3DDevice iface, IWineD3DResource resource, WINED3DRESOURCETYPE type)
626	{
627	IWineD3DDeviceImpl This = (IWineD3DDeviceImpl )iface;
628	UINT i;
629
630	if (!This->d3d_initialized) return;
631
632	switch(type)
633	{
634	case WINED3DRTYPE_SURFACE:
635	{
636	for (i = 0; i < This->numContexts; ++i)
637	{
638	struct wined3d_context *context = This->contexts[i];
639	const struct wined3d_gl_info *gl_info = context->gl_info;
640	struct fbo_entry entry, entry2;
641
642	if (context->current_rt == (IWineD3DSurface *)resource) context->current_rt = NULL;
643
644	LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
645	{
646	UINT j;
647
648	if (entry->depth_stencil == (IWineD3DSurfaceImpl *)resource)
649	{
650	list_remove(&entry->entry);
651	list_add_head(&context->fbo_destroy_list, &entry->entry);
652	continue;
653	}
654
655	for (j = 0; j < gl_info->limits.buffers; ++j)
656	{
657	if (entry->render_targets[j] == (IWineD3DSurfaceImpl *)resource)
658	{
659	list_remove(&entry->entry);
660	list_add_head(&context->fbo_destroy_list, &entry->entry);
661	break;
662	}
663	}
664	}
665	}
666
667	break;
668	}
669
670	default:
671	break;
672	}
673	}
674
675	void context_surface_update(struct wined3d_context context, IWineD3DSurfaceImpl surface)
676	{
677	const struct wined3d_gl_info *gl_info = context->gl_info;
678	struct fbo_entry *entry = context->current_fbo;
679	unsigned int i;
680
681	if (!entry \|\| context->rebind_fbo) return;
682
683	for (i = 0; i < gl_info->limits.buffers; ++i)
684	{
685	if (surface == entry->render_targets[i])
686	{
687	TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface, i);
688	context->rebind_fbo = TRUE;
689	return;
690	}
691	}
692
693	if (surface == entry->depth_stencil)
694	{
695	TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface);
696	context->rebind_fbo = TRUE;
697	}
698	}
699
700	static BOOL context_set_pixel_format(const struct wined3d_gl_info *gl_info, HDC dc, int format)
701	{
702	int current = GetPixelFormat(dc);
703
704	if (current == format) return TRUE;
705
706	if (!current)
707	{
708	if (!SetPixelFormat(dc, format, NULL))
709	{
710	ERR("Failed to set pixel format %d on device context %p, last error %#x.\n",
711	format, dc, GetLastError());
712	return FALSE;
713	}
714	return TRUE;
715	}
716
717	/* By default WGL doesn't allow pixel format adjustments but we need it
718	* here. For this reason there's a Wine specific wglSetPixelFormat()
719	* which allows us to set the pixel format multiple times. Only use it
720	* when really needed. */
721	if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
722	{
723	if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format, NULL)))
724	{
725	ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
726	format, dc);
727	return FALSE;
728	}
729	return TRUE;
730	}
731
732	/* OpenGL doesn't allow pixel format adjustments. Print an error and
733	* continue using the old format. There's a big chance that the old
734	* format works although with a performance hit and perhaps rendering
735	* errors. */
736	ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
737	format, dc, current);
738	return TRUE;
739	}
740
741	#ifdef VBOX_WITH_WDDM
742	static BOOL swapchain_validate(IWineD3DSwapChainImpl *swapchain)
743	{
744	if (!swapchain->hDC)
745	{
746	ERR("NULL hDC");
747	return FALSE;
748	}
749
750	#ifdef DEBUG
751	{
752	HWND hWnd = WindowFromDC(swapchain->hDC);
753	if (hWnd != swapchain->win_handle)
754	{
755	ERR("Unexpected swapchain for dc %p window expected %p, but was %p.\n", swapchain->hDC, swapchain->win_handle, hWnd);
756	}
757	}
758	#endif
759	return TRUE;
760	}
761
762	static IWineD3DSwapChainImpl * swapchain_find_valid(IWineD3DDeviceImpl *device)
763	{
764	int i;
765	for (i = device->NumberOfSwapChains - 1; i >= 0 ; --i)
766	{
767	if (swapchain_validate((IWineD3DSwapChainImpl*)device->swapchains[i]))
768	{
769	return (IWineD3DSwapChainImpl*)device->swapchains[i];
770	}
771	}
772
773	return NULL;
774	}
775	#endif
776
777	static void context_update_window(struct wined3d_context *context
778	#ifdef VBOX_WITH_WDDM
779	, IWineD3DSwapChainImpl *swapchain
780	#endif
781	)
782	{
783	#ifdef VBOX_WITH_WDDM
784	TRACE("Updating context %p swapchain from %p to %p.\n",
785	context, context->currentSwapchain, swapchain);
786
787	context->valid = 1;
788
789	if (!swapchain_validate(swapchain))
790	{
791	ERR("invalid swapchain %p\n", swapchain);
792	goto err;
793	}
794	context->currentSwapchain = swapchain;
795
796	if (!context_set_pixel_format(context->gl_info, swapchain->hDC, context->pixel_format))
797	{
798	ERR("Failed to set pixel format %d on device context %p.\n",
799	context->pixel_format, swapchain->hDC);
800	goto err;
801	}
802
803	if (!pwglMakeCurrent(swapchain->hDC, context->glCtx))
804	{
805	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
806	context->glCtx, swapchain->hDC, GetLastError());
807	goto err;
808	}
809	#else
810	TRACE("Updating context %p window from %p to %p.\n",
811	context, context->win_handle, context->swapchain->win_handle);
812
813	if (context->valid)
814	{
815	if (!VBoxExtReleaseDC(context->win_handle, context->hdc))
816	{
817	ERR("Failed to release device context %p, last error %#x.\n",
818	context->hdc, GetLastError());
819	}
820	}
821	else context->valid = 1;
822
823	context->win_handle = context->swapchain->win_handle;
824	if (!(context->hdc = VBoxExtGetDC(context->win_handle)))
825	{
826	ERR("Failed to get a device context for window %p.\n", context->win_handle);
827	goto err;
828	}
829
830	if (!context_set_pixel_format(context->gl_info, context->hdc, context->pixel_format))
831	{
832	ERR("Failed to set pixel format %d on device context %p.\n",
833	context->pixel_format, context->hdc);
834	goto err;
835	}
836
837	if (!pwglMakeCurrent(context->hdc, context->glCtx))
838	{
839	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
840	context->glCtx, context->hdc, GetLastError());
841	goto err;
842	}
843	#endif
844
845	return;
846	err:
847	context->valid = 0;
848	}
849
850	static void context_validate(struct wined3d_context *context
851	#ifdef VBOX_WITH_WDDM
852	, IWineD3DSwapChainImpl *swapchain
853	# ifdef DEBUG_misha
854	, BOOL fExpectedValid
855	# endif
856	#endif
857
858	)
859	{
860	#ifdef VBOX_WITH_WDDM
861	if (!swapchain)
862	{
863	swapchain = context->currentSwapchain;
864	}
865
866	if (!swapchain)
867	{
868	context->valid = FALSE;
869	# ifdef DEBUG_misha
870	if (fExpectedValid)
871	{
872	ERR("no current swapchain!\n");
873	}
874	# endif
875	return;
876	}
877
878	if (swapchain == context->currentSwapchain)
879	{
880	context->valid = swapchain_validate(context->currentSwapchain);
881	}
882	else
883	#else
884	HWND wnd = WindowFromDC(context->hdc);
885
886	if (wnd != context->win_handle)
887	{
888	DWORD winEr = GetLastError();
889	WARN("DC %p belongs to window %p instead of %p., winEr(%d)\n",
890	context->hdc, wnd, context->win_handle, winEr);
891	context->valid = 0;
892	}
893
894	if (context->swapchain && context->win_handle != context->swapchain->win_handle)
895	#endif
896	{
897	context_update_window(context
898	#ifdef VBOX_WITH_WDDM
899	, swapchain
900	#endif
901	);
902	}
903	}
904
905	#ifdef VBOX_WITH_WDDM
906	static void context_validate_adjust_wnd(struct wined3d_context *context)
907	{
908	IWineD3DSwapChainImpl *swapchain = NULL;
909
910	context_validate(context, NULL
911	# ifdef DEBUG_misha
912	, FALSE
913	# endif
914	);
915	if (context->valid)
916	return;
917
918	swapchain = swapchain_find_valid(context->device);
919	if (swapchain)
920	{
921	context_validate(context, swapchain
922	# ifdef DEBUG_misha
923	, TRUE
924	# endif
925	);
926	if (!context->valid)
927	{
928	ERR("unexpected\n");
929	}
930	}
931	else
932	{
933	ERR("novalid swapchain found\n");
934	}
935	}
936	#endif
937
938	static void context_destroy_gl_resources(struct wined3d_context *context)
939	{
940	const struct wined3d_gl_info *gl_info = context->gl_info;
941	struct wined3d_occlusion_query *occlusion_query;
942	struct wined3d_event_query *event_query;
943	struct fbo_entry entry, entry2;
944	HGLRC restore_ctx;
945	HDC restore_dc;
946	unsigned int i;
947
948	restore_ctx = pwglGetCurrentContext();
949	restore_dc = pwglGetCurrentDC();
950
951	#ifdef VBOX_WITH_WDDM
952	context_validate_adjust_wnd(context);
953	if (context->valid && restore_ctx != context->glCtx) pwglMakeCurrent(context->currentSwapchain->hDC, context->glCtx);
954	else restore_ctx = NULL;
955	#else
956	context_validate(context);
957	if (context->valid && restore_ctx != context->glCtx) pwglMakeCurrent(context->hdc, context->glCtx);
958	else restore_ctx = NULL;
959	#endif
960
961	ENTER_GL();
962
963	LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry)
964	{
965	if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY])
966	GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query->id));
967	occlusion_query->context = NULL;
968	}
969
970	LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry)
971	{
972	if (context->valid)
973	{
974	if (gl_info->supported[ARB_SYNC])
975	{
976	if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
977	}
978	else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id));
979	else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id));
980	}
981	event_query->context = NULL;
982	}
983
984	LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
985	{
986	if (!context->valid) entry->id = 0;
987	context_destroy_fbo_entry(context, entry);
988	}
989
990	LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
991	{
992	if (!context->valid) entry->id = 0;
993	context_destroy_fbo_entry(context, entry);
994	}
995
996	if (context->valid)
997	{
998	if (context->src_fbo)
999	{
1000	TRACE("Destroy src FBO %d\n", context->src_fbo);
1001	context_destroy_fbo(context, &context->src_fbo);
1002	}
1003	if (context->dst_fbo)
1004	{
1005	TRACE("Destroy dst FBO %d\n", context->dst_fbo);
1006	context_destroy_fbo(context, &context->dst_fbo);
1007	}
1008	if (context->dummy_arbfp_prog)
1009	{
1010	GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog));
1011	}
1012
1013	if (gl_info->supported[ARB_OCCLUSION_QUERY])
1014	GL_EXTCALL(glDeleteQueriesARB(context->free_occlusion_query_count, context->free_occlusion_queries));
1015
1016	if (gl_info->supported[ARB_SYNC])
1017	{
1018	if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
1019	}
1020	else if (gl_info->supported[APPLE_FENCE])
1021	{
1022	for (i = 0; i < context->free_event_query_count; ++i)
1023	{
1024	GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id));
1025	}
1026	}
1027	else if (gl_info->supported[NV_FENCE])
1028	{
1029	for (i = 0; i < context->free_event_query_count; ++i)
1030	{
1031	GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id));
1032	}
1033	}
1034
1035	checkGLcall("context cleanup");
1036	}
1037
1038	LEAVE_GL();
1039
1040	HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries);
1041	HeapFree(GetProcessHeap(), 0, context->free_event_queries);
1042
1043	if (restore_ctx)
1044	{
1045	if (!pwglMakeCurrent(restore_dc, restore_ctx))
1046	{
1047	DWORD err = GetLastError();
1048	ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
1049	restore_ctx, restore_dc, err);
1050	}
1051	}
1052	else if (pwglGetCurrentContext() && !pwglMakeCurrent(NULL, NULL))
1053	{
1054	ERR("Failed to disable GL context.\n");
1055	}
1056	#ifndef VBOX_WINE_WITH_SINGLE_CONTEXT
1057	# ifndef VBOX_WITH_WDDM
1058	VBoxExtReleaseDC(context->win_handle, context->hdc);
1059	# else
1060	VBoxExtReleaseDC(context->win_handle, context->hdc);
1061	# endif
1062	#endif
1063	if (!pwglDeleteContext(context->glCtx))
1064	{
1065	DWORD err = GetLastError();
1066	ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err);
1067	}
1068	}
1069
1070	DWORD context_get_tls_idx(void)
1071	{
1072	return wined3d_context_tls_idx;
1073	}
1074
1075	void context_set_tls_idx(DWORD idx)
1076	{
1077	wined3d_context_tls_idx = idx;
1078	}
1079
1080	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1081	static struct wined3d_context *context_get_current_ex(DWORD adjustTid)
1082	{
1083	struct wined3d_context *ctx = vboxGetCurrentContext();
1084	if (ctx && !VBoxTlsRefIsFunctional(ctx))
1085	{
1086	/* this is a destroyed context left in the tls of the current thread */
1087	/* 1. this releases the context and clears the tls */
1088	vboxSetCurrentContext(NULL);
1089	/* return there is no context current */
1090	return NULL;
1091	}
1092	if (!adjustTid)
1093	return ctx;
1094	if (!ctx \|\| ctx->tid == adjustTid)
1095	return ctx;
1096	if (context_set_current(ctx))
1097	{
1098	Assert(ctx->tid == adjustTid);
1099	return ctx;
1100	}
1101	ERR("context_set_current failed\n");
1102	return NULL;
1103	}
1104	#endif
1105
1106	struct wined3d_context *context_get_current(void)
1107	{
1108	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1109	return TlsGetValue(wined3d_context_tls_idx);
1110	#else
1111	DWORD tid = GetCurrentThreadId();
1112	return context_get_current_ex(tid);
1113	#endif
1114	}
1115
1116
1117	BOOL context_set_current(struct wined3d_context *ctx)
1118	{
1119	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1120	struct wined3d_context *old = context_get_current_ex(0);
1121	DWORD tid = GetCurrentThreadId();
1122	#else
1123	struct wined3d_context *old = context_get_current();
1124	#endif
1125	if (old == ctx)
1126	{
1127	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1128	if (ctx && ctx->tid != tid)
1129	{
1130	old = NULL;
1131	}
1132	else
1133	#endif
1134	{
1135	TRACE("Already using D3D context %p.\n", ctx);
1136	return TRUE;
1137	}
1138	}
1139
1140	if (old)
1141	{
1142	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1143	old->tid = 0;
1144	old->current = 0;
1145	#else
1146	if (old->destroyed)
1147	{
1148	TRACE("Switching away from destroyed context %p.\n", old);
1149	context_destroy_gl_resources(old);
1150	HeapFree(GetProcessHeap(), 0, old);
1151	}
1152	else
1153	{
1154	old->current = 0;
1155	}
1156	#endif
1157	}
1158
1159	if (ctx)
1160	{
1161	#ifdef VBOX_WITH_WDDM
1162	TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->currentSwapchain->hDC);
1163	if (!pwglMakeCurrent(ctx->currentSwapchain->hDC, ctx->glCtx))
1164	{
1165	DWORD err = GetLastError();
1166	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
1167	ctx->glCtx, ctx->currentSwapchain->hDC, err);
1168	vboxSetCurrentContext(NULL);
1169	return FALSE;
1170	}
1171	#else
1172	TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc);
1173	if (!pwglMakeCurrent(ctx->hdc, ctx->glCtx))
1174	{
1175	DWORD err = GetLastError();
1176	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
1177	ctx->glCtx, ctx->hdc, err);
1178	vboxSetCurrentContext(NULL);
1179	return FALSE;
1180	}
1181	#endif
1182	ctx->current = 1;
1183	}
1184	else if(pwglGetCurrentContext())
1185	{
1186	TRACE("Clearing current D3D context.\n");
1187	if (!pwglMakeCurrent(NULL, NULL))
1188	{
1189	DWORD err = GetLastError();
1190	ERR("Failed to clear current GL context, last error %#x.\n", err);
1191	vboxSetCurrentContext(NULL);
1192	return FALSE;
1193	}
1194	}
1195
1196	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1197	return TlsSetValue(wined3d_context_tls_idx, ctx);
1198	#else
1199	vboxSetCurrentContext(ctx);
1200	if (ctx)
1201	ctx->tid = tid;
1202	return TRUE;
1203	#endif
1204	}
1205
1206	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1207	void context_clear_on_thread_detach()
1208	{
1209	/* In theory, we should do context_set_current(NULL) here,
1210	* but since it may result in calling a context dtor, it should be done under wined3d lock.
1211	* We can not acquire a wined3d lock here since this routine is called in a DllMain context
1212	* and this would result in a lock order violation, which may result in a deadlock.
1213	* In other words, wined3d may internally call Win32 API functions which result in
1214	* a DLL lock acquisition while holding wined3d lock.
1215	* So lock order should always be "wined3d lock" -> "dll lock".
1216	*
1217	* This is why we do the following:
1218	* */
1219
1220	/* 1. get the current context w/o adjusting its thread id, etc. */
1221	struct wined3d_context *old = context_get_current_ex(0);
1222	if (!old)
1223	return;
1224
1225	/* there is a currently assigned context,
1226	* 2. now increase its ref count to ensure its dtor routine is not called while making set_current(NULL).
1227	* This is needed since dtor can only be run with a wined3d lock held */
1228	VBoxTlsRefAddRef(old);
1229
1230	/* 3. now we can call context_set_current(NULL) */
1231	context_set_current(NULL);
1232
1233	/* 4. to avoid possible deadlocks we make an asynchronous call to a worker thread to make
1234	* wined3d lock - context release - wined3d unlock from there. */
1235	VBoxExtReleaseContextAsync(old);
1236	}
1237	#endif
1238
1239	void context_release(struct wined3d_context *context)
1240	{
1241	TRACE("Releasing context %p, level %u.\n", context, context->level);
1242
1243	if (WARN_ON(d3d))
1244	{
1245	if (!context->level)
1246	WARN("Context %p is not active.\n", context);
1247	else if (context != context_get_current())
1248	WARN("Context %p is not the current context.\n", context);
1249	}
1250
1251	if (!--context->level && context->restore_ctx)
1252	{
1253	TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc);
1254	if (!pwglMakeCurrent(context->restore_dc, context->restore_ctx))
1255	{
1256	DWORD err = GetLastError();
1257	ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
1258	context->restore_ctx, context->restore_dc, err);
1259	}
1260	else
1261	{
1262	/* success branch */
1263	/* sync back our tls with gl settings */
1264	const struct wined3d_context *current_context = context_get_current();
1265	if (current_context && current_context->glCtx != context->restore_ctx)
1266	{
1267	#ifdef VBOX_WITH_WDDM
1268	IWineD3DDeviceImpl *device = context->device;
1269	#else
1270	IWineD3DDeviceImpl *device = context->swapchain->device;
1271	#endif
1272	UINT i = 0;
1273	for (; i < device->numContexts; ++i)
1274	{
1275	struct wined3d_context *ctx = device->contexts[i];
1276	if (ctx->glCtx == context->restore_ctx)
1277	{
1278	context_set_current(ctx);
1279	break;
1280	}
1281	}
1282
1283	if (i == device->numContexts)
1284	{
1285	context_set_current(NULL);
1286	}
1287	}
1288	}
1289
1290	context->restore_ctx = NULL;
1291	context->restore_dc = NULL;
1292	}
1293	}
1294
1295	static void context_enter(struct wined3d_context *context)
1296	{
1297	TRACE("Entering context %p, level %u.\n", context, context->level + 1);
1298
1299	if (!context->level++)
1300	{
1301	const struct wined3d_context *current_context = context_get_current();
1302	HGLRC current_gl = pwglGetCurrentContext();
1303
1304	if (current_gl && (!current_context \|\| current_context->glCtx != current_gl))
1305	{
1306	TRACE("Another GL context (%p on device context %p) is already current.\n",
1307	current_gl, pwglGetCurrentDC());
1308	context->restore_ctx = current_gl;
1309	context->restore_dc = pwglGetCurrentDC();
1310	}
1311	}
1312	}
1313
1314	/*****************************************************************************
1315	* Context_MarkStateDirty
1316	*
1317	* Marks a state in a context dirty. Only one context, opposed to
1318	* IWineD3DDeviceImpl_MarkStateDirty, which marks the state dirty in all
1319	* contexts
1320	*
1321	* Params:
1322	* context: Context to mark the state dirty in
1323	* state: State to mark dirty
1324	* StateTable: Pointer to the state table in use(for state grouping)
1325	*
1326	*****************************************************************************/
1327	static void Context_MarkStateDirty(struct wined3d_context context, DWORD state, const struct StateEntry StateTable)
1328	{
1329	DWORD rep = StateTable[state].representative;
1330	DWORD idx;
1331	BYTE shift;
1332
1333	if (isStateDirty(context, rep)) return;
1334
1335	context->dirtyArray[context->numDirtyEntries++] = rep;
1336	idx = rep / (sizeof(context->isStateDirty) CHAR_BIT);
1337	shift = rep & ((sizeof(context->isStateDirty) CHAR_BIT) - 1);
1338	context->isStateDirty[idx] \|= (1 << shift);
1339	}
1340
1341	/* This function takes care of WineD3D pixel format selection. */
1342	static int WineD3D_ChoosePixelFormat(IWineD3DDeviceImpl *This, HDC hdc,
1343	const struct wined3d_format_desc color_format_desc, const struct wined3d_format_desc ds_format_desc,
1344	BOOL auxBuffers, int numSamples, BOOL findCompatible)
1345	{
1346	int iPixelFormat=0;
1347	unsigned int matchtry;
1348	short redBits, greenBits, blueBits, alphaBits, colorBits;
1349	short depthBits=0, stencilBits=0;
1350
1351	struct match_type {
1352	BOOL require_aux;
1353	BOOL exact_alpha;
1354	BOOL exact_color;
1355	} matches[] = {
1356	/* First, try without alpha match buffers. MacOS supports aux buffers only
1357	* on A8R8G8B8, and we prefer better offscreen rendering over an alpha match.
1358	* Then try without aux buffers - this is the most common cause for not
1359	* finding a pixel format. Also some drivers(the open source ones)
1360	* only offer 32 bit ARB pixel formats. First try without an exact alpha
1361	* match, then try without an exact alpha and color match.
1362	*/
1363	{ TRUE, TRUE, TRUE },
1364	{ TRUE, FALSE, TRUE },
1365	{ FALSE, TRUE, TRUE },
1366	{ FALSE, FALSE, TRUE },
1367	{ TRUE, FALSE, FALSE },
1368	{ FALSE, FALSE, FALSE },
1369	};
1370
1371	int i = 0;
1372	int nCfgs = This->adapter->nCfgs;
1373
1374	TRACE("ColorFormat=%s, DepthStencilFormat=%s, auxBuffers=%d, numSamples=%d, findCompatible=%d\n",
1375	debug_d3dformat(color_format_desc->format), debug_d3dformat(ds_format_desc->format),
1376	auxBuffers, numSamples, findCompatible);
1377
1378	if (!getColorBits(color_format_desc, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits))
1379	{
1380	ERR("Unable to get color bits for format %s (%#x)!\n",
1381	debug_d3dformat(color_format_desc->format), color_format_desc->format);
1382	return 0;
1383	}
1384
1385	getDepthStencilBits(ds_format_desc, &depthBits, &stencilBits);
1386
1387	for(matchtry = 0; matchtry < (sizeof(matches) / sizeof(matches[0])) && !iPixelFormat; matchtry++) {
1388	for(i=0; i<nCfgs; i++) {
1389	BOOL exactDepthMatch = TRUE;
1390	WineD3D_PixelFormat *cfg = &This->adapter->cfgs[i];
1391
1392	/* For now only accept RGBA formats. Perhaps some day we will
1393	* allow floating point formats for pbuffers. */
1394	if(cfg->iPixelType != WGL_TYPE_RGBA_ARB)
1395	continue;
1396
1397	/* In window mode we need a window drawable format and double buffering. */
1398	if(!(cfg->windowDrawable && cfg->doubleBuffer))
1399	continue;
1400
1401	/* We like to have aux buffers in backbuffer mode */
1402	if(auxBuffers && !cfg->auxBuffers && matches[matchtry].require_aux)
1403	continue;
1404
1405	if(matches[matchtry].exact_color) {
1406	if(cfg->redSize != redBits)
1407	continue;
1408	if(cfg->greenSize != greenBits)
1409	continue;
1410	if(cfg->blueSize != blueBits)
1411	continue;
1412	} else {
1413	if(cfg->redSize < redBits)
1414	continue;
1415	if(cfg->greenSize < greenBits)
1416	continue;
1417	if(cfg->blueSize < blueBits)
1418	continue;
1419	}
1420	if(matches[matchtry].exact_alpha) {
1421	if(cfg->alphaSize != alphaBits)
1422	continue;
1423	} else {
1424	if(cfg->alphaSize < alphaBits)
1425	continue;
1426	}
1427
1428	/* We try to locate a format which matches our requirements exactly. In case of
1429	* depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1430	if(cfg->depthSize < depthBits)
1431	continue;
1432	else if(cfg->depthSize > depthBits)
1433	exactDepthMatch = FALSE;
1434
1435	/* In all cases make sure the number of stencil bits matches our requirements
1436	* even when we don't need stencil because it could affect performance EXCEPT
1437	* on cards which don't offer depth formats without stencil like the i915 drivers
1438	* on Linux. */
1439	if(stencilBits != cfg->stencilSize && !(This->adapter->brokenStencil && stencilBits <= cfg->stencilSize))
1440	continue;
1441
1442	/* Check multisampling support */
1443	if(cfg->numSamples != numSamples)
1444	continue;
1445
1446	/* When we have passed all the checks then we have found a format which matches our
1447	* requirements. Note that we only check for a limit number of capabilities right now,
1448	* so there can easily be a dozen of pixel formats which appear to be the 'same' but
1449	* can still differ in things like multisampling, stereo, SRGB and other flags.
1450	*/
1451
1452	/* Exit the loop as we have found a format :) */
1453	if(exactDepthMatch) {
1454	iPixelFormat = cfg->iPixelFormat;
1455	break;
1456	} else if(!iPixelFormat) {
1457	/* In the end we might end up with a format which doesn't exactly match our depth
1458	* requirements. Accept the first format we found because formats with higher iPixelFormat
1459	* values tend to have more extended capabilities (e.g. multisampling) which we don't need. */
1460	iPixelFormat = cfg->iPixelFormat;
1461	}
1462	}
1463	}
1464
1465	/* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1466	if(!iPixelFormat && !findCompatible) {
1467	#ifdef DEBUG_misha
1468	WARN("Can't find a suitable iPixelFormat\n");
1469	#elif !defined(VBOX_WITH_WDDM)
1470	ERR("Can't find a suitable iPixelFormat\n");
1471	#endif
1472	return FALSE;
1473	} else if(!iPixelFormat) {
1474	PIXELFORMATDESCRIPTOR pfd;
1475
1476	TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1477	/* PixelFormat selection */
1478	ZeroMemory(&pfd, sizeof(pfd));
1479	pfd.nSize = sizeof(pfd);
1480	pfd.nVersion = 1;
1481	pfd.dwFlags = PFD_SUPPORT_OPENGL \| PFD_DOUBLEBUFFER \| PFD_DRAW_TO_WINDOW;/PFD_GENERIC_ACCELERATED/
1482	pfd.iPixelType = PFD_TYPE_RGBA;
1483	pfd.cAlphaBits = alphaBits;
1484	pfd.cColorBits = colorBits;
1485	pfd.cDepthBits = depthBits;
1486	pfd.cStencilBits = stencilBits;
1487	pfd.iLayerType = PFD_MAIN_PLANE;
1488
1489	iPixelFormat = ChoosePixelFormat(hdc, &pfd);
1490	if(!iPixelFormat) {
1491	/* If this happens something is very wrong as ChoosePixelFormat barely fails */
1492	ERR("Can't find a suitable iPixelFormat\n");
1493	return FALSE;
1494	}
1495	}
1496
1497	TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1498	iPixelFormat, debug_d3dformat(color_format_desc->format), debug_d3dformat(ds_format_desc->format));
1499	return iPixelFormat;
1500	}
1501
1502	struct IWineD3DDeviceImpl context_get_device(const struct wined3d_context context)
1503	{
1504	#ifdef VBOX_WITH_WDDM
1505	return context->device;
1506	#else
1507	return context->swapchain->device;
1508	#endif
1509	}
1510
1511	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1512	static DECLCALLBACK(void) context_tls_dtor(void* pvCtx)
1513	{
1514	struct wined3d_context * context = (struct wined3d_context *)pvCtx;
1515	HeapFree(GetProcessHeap(), 0, context);
1516	}
1517	#endif
1518
1519	/*****************************************************************************
1520	* context_create
1521	*
1522	* Creates a new context.
1523	*
1524	* * Params:
1525	* This: Device to activate the context for
1526	* target: Surface this context will render to
1527	* win_handle: handle to the window which we are drawing to
1528	* pPresentParameters: contains the pixelformats to use for onscreen rendering
1529	*
1530	*****************************************************************************/
1531	struct wined3d_context context_create(IWineD3DSwapChainImpl swapchain, IWineD3DSurfaceImpl *target,
1532	const struct wined3d_format_desc *ds_format_desc)
1533	{
1534	IWineD3DDeviceImpl *device = swapchain->device;
1535	const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1536	const struct wined3d_format_desc *color_format_desc;
1537	struct wined3d_context *ret;
1538	PIXELFORMATDESCRIPTOR pfd;
1539	BOOL auxBuffers = FALSE;
1540	int numSamples = 0;
1541	int pixel_format;
1542	unsigned int s;
1543	DWORD state;
1544	HGLRC ctx;
1545	HDC hdc;
1546
1547	TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle);
1548
1549	ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
1550	if (!ret)
1551	{
1552	ERR("Failed to allocate context memory.\n");
1553	return NULL;
1554	}
1555
1556	#if defined(VBOX_WINE_WITH_SINGLE_CONTEXT) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1557	VBoxTlsRefInit(ret, context_tls_dtor);
1558	#endif
1559
1560	if (!(hdc =
1561	#ifdef VBOX_WINE_WITH_SINGLE_CONTEXT
1562	swapchain->hDC
1563	#else
1564	VBoxExtGetDC(swapchain->win_handle)
1565	#endif
1566	)
1567	)
1568	{
1569	ERR("Failed to retrieve a device context.\n");
1570	goto out;
1571	}
1572
1573	color_format_desc = target->resource.format_desc;
1574
1575	/* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1576	* X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1577	if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER)
1578	{
1579	auxBuffers = TRUE;
1580
1581	if (color_format_desc->format == WINED3DFMT_B4G4R4X4_UNORM)
1582	color_format_desc = getFormatDescEntry(WINED3DFMT_B4G4R4A4_UNORM, gl_info);
1583	else if (color_format_desc->format == WINED3DFMT_B8G8R8X8_UNORM)
1584	color_format_desc = getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM, gl_info);
1585	}
1586
1587	/* DirectDraw supports 8bit paletted render targets and these are used by
1588	* old games like Starcraft and C&C. Most modern hardware doesn't support
1589	* 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1590	* conversion (ab)uses the alpha component for storing the palette index.
1591	* For this reason we require a format with 8bit alpha, so request
1592	* A8R8G8B8. */
1593	if (color_format_desc->format == WINED3DFMT_P8_UINT)
1594	color_format_desc = getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM, gl_info);
1595
1596	/* Retrieve the depth stencil format from the present parameters.
1597	* The choice of the proper format can give a nice performance boost
1598	* in case of GPU limited programs. */
1599	if (swapchain->presentParms.EnableAutoDepthStencil)
1600	{
1601	TRACE("Auto depth stencil enabled, using format %s.\n",
1602	debug_d3dformat(swapchain->presentParms.AutoDepthStencilFormat));
1603	ds_format_desc = getFormatDescEntry(swapchain->presentParms.AutoDepthStencilFormat, gl_info);
1604	}
1605
1606	/* D3D only allows multisampling when SwapEffect is set to WINED3DSWAPEFFECT_DISCARD. */
1607	if (swapchain->presentParms.MultiSampleType && (swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD))
1608	{
1609	if (!gl_info->supported[ARB_MULTISAMPLE])
1610	WARN("The application is requesting multisampling without support.\n");
1611	else
1612	{
1613	TRACE("Requesting multisample type %#x.\n", swapchain->presentParms.MultiSampleType);
1614	numSamples = swapchain->presentParms.MultiSampleType;
1615	}
1616	}
1617
1618	/* Try to find a pixel format which matches our requirements. */
1619	pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format_desc, ds_format_desc,
1620	auxBuffers, numSamples, FALSE /* findCompatible */);
1621
1622	/* Try to locate a compatible format if we weren't able to find anything. */
1623	if (!pixel_format)
1624	{
1625	TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1626	pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format_desc, ds_format_desc,
1627	auxBuffers, 0 /* numSamples /, TRUE / findCompatible */);
1628	}
1629
1630	/* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1631	if (!pixel_format)
1632	{
1633	ERR("Can't find a suitable pixel format.\n");
1634	goto out;
1635	}
1636
1637	DescribePixelFormat(hdc, pixel_format, sizeof(pfd), &pfd);
1638	if (!context_set_pixel_format(gl_info, hdc, pixel_format))
1639	{
1640	ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc);
1641	goto out;
1642	}
1643
1644	ctx = pwglCreateContext(hdc);
1645	if (device->numContexts)
1646	{
1647	if (!pwglShareLists(device->contexts[0]->glCtx, ctx))
1648	{
1649	DWORD err = GetLastError();
1650	ERR("wglShareLists(%p, %p) failed, last error %#x.\n",
1651	device->contexts[0]->glCtx, ctx, err);
1652	}
1653	}
1654
1655	if(!ctx) {
1656	ERR("Failed to create a WGL context\n");
1657	goto out;
1658	}
1659
1660	if (!device_context_add(device, ret))
1661	{
1662	ERR("Failed to add the newly created context to the context list\n");
1663	if (!pwglDeleteContext(ctx))
1664	{
1665	DWORD err = GetLastError();
1666	ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, err);
1667	}
1668	goto out;
1669	}
1670
1671	ret->gl_info = gl_info;
1672
1673	/* Mark all states dirty to force a proper initialization of the states
1674	* on the first use of the context. */
1675	for (state = 0; state <= STATE_HIGHEST; ++state)
1676	{
1677	if (device->StateTable[state].representative)
1678	Context_MarkStateDirty(ret, state, device->StateTable);
1679	}
1680
1681	#ifdef VBOX_WITH_WDDM
1682	ret->device = device;
1683	ret->currentSwapchain = swapchain;
1684	#else
1685	ret->swapchain = swapchain;
1686	#endif
1687	ret->current_rt = (IWineD3DSurface *)target;
1688	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1689	ret->tid = GetCurrentThreadId();
1690	#endif
1691
1692	ret->render_offscreen = surface_is_offscreen((IWineD3DSurface *) target);
1693	ret->draw_buffer_dirty = TRUE;
1694	ret->valid = 1;
1695
1696	ret->glCtx = ctx;
1697	#ifndef VBOX_WITH_WDDM
1698	ret->win_handle = swapchain->win_handle;
1699	ret->hdc = hdc;
1700	#endif
1701	ret->pixel_format = pixel_format;
1702
1703	if (device->shader_backend->shader_dirtifyable_constants((IWineD3DDevice *)device))
1704	{
1705	/* Create the dirty constants array and initialize them to dirty */
1706	ret->vshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
1707	sizeof(ret->vshader_const_dirty) device->d3d_vshader_constantF);
1708	ret->pshader_const_dirty = HeapAlloc(GetProcessHeap(), 0,
1709	sizeof(ret->pshader_const_dirty) device->d3d_pshader_constantF);
1710	memset(ret->vshader_const_dirty, 1,
1711	sizeof(ret->vshader_const_dirty) device->d3d_vshader_constantF);
1712	memset(ret->pshader_const_dirty, 1,
1713	sizeof(ret->pshader_const_dirty) device->d3d_pshader_constantF);
1714	}
1715
1716	ret->free_occlusion_query_size = 4;
1717	ret->free_occlusion_queries = HeapAlloc(GetProcessHeap(), 0,
1718	ret->free_occlusion_query_size * sizeof(*ret->free_occlusion_queries));
1719	if (!ret->free_occlusion_queries) goto out;
1720
1721	list_init(&ret->occlusion_queries);
1722
1723	ret->free_event_query_size = 4;
1724	ret->free_event_queries = HeapAlloc(GetProcessHeap(), 0,
1725	ret->free_event_query_size * sizeof(*ret->free_event_queries));
1726	if (!ret->free_event_queries) goto out;
1727
1728	list_init(&ret->event_queries);
1729
1730	TRACE("Successfully created new context %p\n", ret);
1731
1732	list_init(&ret->fbo_list);
1733	list_init(&ret->fbo_destroy_list);
1734
1735	context_enter(ret);
1736
1737	/* Set up the context defaults */
1738	if (!context_set_current(ret))
1739	{
1740	ERR("Cannot activate context to set up defaults\n");
1741	context_release(ret);
1742	goto out;
1743	}
1744
1745	ENTER_GL();
1746
1747	glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers);
1748
1749	TRACE("Setting up the screen\n");
1750	/* Clear the screen */
1751	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
1752	checkGLcall("glClearColor");
1753	glClearIndex(0);
1754	glClearDepth(1);
1755	glClearStencil(0xffff);
1756
1757	checkGLcall("glClear");
1758
1759	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
1760	checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1761
1762	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
1763	checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1764
1765	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1766	checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1767
1768	glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);
1769	checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1770	glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);
1771	checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);");
1772
1773	if (gl_info->supported[APPLE_CLIENT_STORAGE])
1774	{
1775	/* Most textures will use client storage if supported. Exceptions are non-native power of 2 textures
1776	* and textures in DIB sections(due to the memory protection).
1777	*/
1778	glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
1779	checkGLcall("glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE)");
1780	}
1781	if (gl_info->supported[ARB_VERTEX_BLEND])
1782	{
1783	/* Direct3D always uses n-1 weights for n world matrices and uses 1 - sum for the last one
1784	* this is equal to GL_WEIGHT_SUM_UNITY_ARB. Enabling it doesn't do anything unless
1785	* GL_VERTEX_BLEND_ARB isn't enabled too
1786	*/
1787	glEnable(GL_WEIGHT_SUM_UNITY_ARB);
1788	checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1789	}
1790	if (gl_info->supported[NV_TEXTURE_SHADER2])
1791	{
1792	/* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1793	* the previous texture where to source the offset from is always unit - 1.
1794	*/
1795	for (s = 1; s < gl_info->limits.textures; ++s)
1796	{
1797	GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
1798	glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
1799	checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1800	}
1801	}
1802	if (gl_info->supported[ARB_FRAGMENT_PROGRAM])
1803	{
1804	/* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1805	* enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1806	* GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1807	* because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1808	* is ever assigned.
1809	*
1810	* So make sure a program is assigned to each context. The first real ARBFP use will set a different
1811	* program and the dummy program is destroyed when the context is destroyed.
1812	*/
1813	const char *dummy_program =
1814	"!!ARBfp1.0\n"
1815	"MOV result.color, fragment.color.primary;\n"
1816	"END\n";
1817	GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog));
1818	GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog));
1819	GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program));
1820	}
1821
1822	for (s = 0; s < gl_info->limits.point_sprite_units; ++s)
1823	{
1824	GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s));
1825	glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
1826	checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1827	}
1828
1829	if (gl_info->supported[ARB_PROVOKING_VERTEX])
1830	{
1831	GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION));
1832	}
1833	else if (gl_info->supported[EXT_PROVOKING_VERTEX])
1834	{
1835	GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT));
1836	}
1837
1838	/* for WDDM case this is used for shared resource handling
1839	*
1840	* for XPDM this is needed to at least support texture sharing between device contexts.
1841	* this is a kinda hack, but it is needed since our ogl driver currently does not support ShareLists */
1842	GL_EXTCALL(glChromiumParameteriCR(GL_SHARE_CONTEXT_RESOURCES_CR, GL_TRUE));
1843	#if defined(VBOX_WITH_WDDM) \|\| defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1844	GL_EXTCALL(glChromiumParameteriCR(GL_FLUSH_ON_THREAD_SWITCH_CR, GL_TRUE));
1845	#endif
1846	LEAVE_GL();
1847
1848	device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
1849
1850	TRACE("Created context %p.\n", ret);
1851
1852	return ret;
1853
1854	out:
1855	HeapFree(GetProcessHeap(), 0, ret->free_event_queries);
1856	HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries);
1857	HeapFree(GetProcessHeap(), 0, ret->pshader_const_dirty);
1858	HeapFree(GetProcessHeap(), 0, ret->vshader_const_dirty);
1859	HeapFree(GetProcessHeap(), 0, ret);
1860	return NULL;
1861	}
1862
1863	#ifdef VBOX_WITH_WDDM
1864	static void context_setup_target(IWineD3DDeviceImpl device, struct wined3d_context context, IWineD3DSurface *target);
1865	static void context_apply_state(struct wined3d_context context, IWineD3DDeviceImpl device, enum ContextUsage usage);
1866
1867	BOOL context_acquire_context(struct wined3d_context * context, IWineD3DSurface *target, enum ContextUsage usage, BOOL bReValidate)
1868	{
1869	IWineD3DDeviceImpl *device = context->device;
1870	struct wined3d_context *current_context = context_get_current();
1871	if (bReValidate)
1872	{
1873	IWineD3DSwapChain *swapchain = NULL;
1874	if (target && SUCCEEDED(IWineD3DSurface_GetContainer(target, &IID_IWineD3DSwapChain, (void **)&swapchain))) {
1875	context_validate(context, (IWineD3DSwapChainImpl*)swapchain
1876	# ifdef DEBUG_misha
1877	, TRUE
1878	# endif
1879	);
1880	IWineD3DSwapChain_Release(swapchain);
1881	}
1882	else {
1883	context_validate_adjust_wnd(context);
1884	}
1885	}
1886	context_setup_target(device, context, target);
1887	context_enter(context);
1888	// Assert(context->valid);
1889	if (!context->valid) return FALSE;
1890
1891	if (context != current_context)
1892	{
1893	if (!context_set_current(context)) ERR("Failed to activate the new context.\n");
1894	else device->frag_pipe->enable_extension((IWineD3DDevice *)device, !context->last_was_blit);
1895
1896	if (context->vshader_const_dirty)
1897	{
1898	memset(context->vshader_const_dirty, 1,
1899	sizeof(context->vshader_const_dirty) device->d3d_vshader_constantF);
1900	device->highest_dirty_vs_const = device->d3d_vshader_constantF;
1901	}
1902	if (context->pshader_const_dirty)
1903	{
1904	memset(context->pshader_const_dirty, 1,
1905	sizeof(context->pshader_const_dirty) device->d3d_pshader_constantF);
1906	device->highest_dirty_ps_const = device->d3d_pshader_constantF;
1907	}
1908	}
1909	else if (context->restore_ctx)
1910	{
1911	if (!pwglMakeCurrent(context->currentSwapchain->hDC, context->glCtx))
1912	{
1913	DWORD err = GetLastError();
1914	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
1915	context->currentSwapchain->hDC, context->glCtx, err);
1916	}
1917	}
1918
1919	context_apply_state(context, device, usage);
1920
1921	return TRUE;
1922	}
1923
1924	struct wined3d_context context_find_create(IWineD3DDeviceImpl device, IWineD3DSwapChainImpl swapchain, IWineD3DSurfaceImpl target,
1925	const struct wined3d_format_desc *ds_format_desc)
1926	{
1927	#ifndef VBOX_WINE_WITH_SINGLE_CONTEXT
1928	UINT i;
1929	DWORD tid = GetCurrentThreadId();
1930	#endif
1931	struct wined3d_context *context = NULL;
1932
1933	#ifndef VBOX_WINE_WITH_SINGLE_CONTEXT
1934	for(i = 0 ; i < device->numContexts ; i ++)
1935	{
1936	if(device->contexts[i]->tid == tid) {
1937	context = device->contexts[i];
1938	break;
1939	}
1940	}
1941	#else
1942	# ifdef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
1943	# error "Port Me!"
1944	# endif
1945	context = device->numContexts ? device->contexts[0] : NULL;
1946	#endif
1947
1948	if (!context)
1949	{
1950	Assert(!device->NumberOfSwapChains);
1951	context = context_create(swapchain, target, ds_format_desc);
1952	}
1953	else
1954	{
1955	if(!context_acquire_context(context, (IWineD3DSurface*)target, CTXUSAGE_RESOURCELOAD, TRUE))
1956	{
1957	ERR("Failed to acquire the context.\n");
1958	Assert(0);
1959	Assert(!context->valid);
1960	context = NULL;
1961	}
1962	else
1963	{
1964	Assert(context->valid);
1965	}
1966	}
1967
1968	return context;
1969	}
1970	#endif
1971
1972	/*****************************************************************************
1973	* context_destroy
1974	*
1975	* Destroys a wined3d context
1976	*
1977	* Params:
1978	* This: Device to activate the context for
1979	* context: Context to destroy
1980	*
1981	*****************************************************************************/
1982	void context_destroy(IWineD3DDeviceImpl This, struct wined3d_context context)
1983	{
1984	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1985	BOOL destroy;
1986	#endif
1987
1988	TRACE("Destroying ctx %p\n", context);
1989
1990	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
1991	if (context->tid == GetCurrentThreadId() \|\| !context->current)
1992	{
1993	context_destroy_gl_resources(context);
1994	TlsSetValue(wined3d_context_tls_idx, NULL);
1995	destroy = TRUE;
1996	}
1997	else
1998	{
1999	context->destroyed = 1;
2000	destroy = FALSE;
2001	}
2002	#else
2003	context_destroy_gl_resources(context);
2004	#endif
2005
2006	HeapFree(GetProcessHeap(), 0, context->vshader_const_dirty);
2007	HeapFree(GetProcessHeap(), 0, context->pshader_const_dirty);
2008	device_context_remove(This, context);
2009	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
2010	if (destroy) HeapFree(GetProcessHeap(), 0, context);
2011	#else
2012	# ifndef VBOX_WITH_WDDM
2013	context->swapchain = NULL;
2014	#else
2015	context->currentSwapchain = NULL;
2016	context->device = NULL;
2017	# endif
2018	VBoxTlsRefMarkDestroy(context);
2019	VBoxTlsRefRelease(context);
2020	#endif
2021	}
2022
2023	/* GL locking is done by the caller */
2024	static inline void set_blit_dimension(UINT width, UINT height) {
2025	glMatrixMode(GL_PROJECTION);
2026	checkGLcall("glMatrixMode(GL_PROJECTION)");
2027	glLoadIdentity();
2028	checkGLcall("glLoadIdentity()");
2029	glOrtho(0, width, height, 0, 0.0, -1.0);
2030	checkGLcall("glOrtho");
2031	glViewport(0, 0, width, height);
2032	checkGLcall("glViewport");
2033	}
2034
2035	/*****************************************************************************
2036	* SetupForBlit
2037	*
2038	* Sets up a context for DirectDraw blitting.
2039	* All texture units are disabled, texture unit 0 is set as current unit
2040	* fog, lighting, blending, alpha test, z test, scissor test, culling disabled
2041	* color writing enabled for all channels
2042	* register combiners disabled, shaders disabled
2043	* world matrix is set to identity, texture matrix 0 too
2044	* projection matrix is setup for drawing screen coordinates
2045	*
2046	* Params:
2047	* This: Device to activate the context for
2048	* context: Context to setup
2049	*
2050	*****************************************************************************/
2051	/* Context activation is done by the caller. */
2052	static void SetupForBlit(IWineD3DDeviceImpl This, struct wined3d_context context)
2053	{
2054	int i;
2055	const struct StateEntry *StateTable = This->StateTable;
2056	const struct wined3d_gl_info *gl_info = context->gl_info;
2057	UINT width = ((IWineD3DSurfaceImpl *)context->current_rt)->currentDesc.Width;
2058	UINT height = ((IWineD3DSurfaceImpl *)context->current_rt)->currentDesc.Height;
2059	DWORD sampler;
2060
2061	TRACE("Setting up context %p for blitting\n", context);
2062	if(context->last_was_blit) {
2063	if(context->blit_w != width \|\| context->blit_h != height) {
2064	ENTER_GL();
2065	set_blit_dimension(width, height);
2066	LEAVE_GL();
2067	context->blit_w = width; context->blit_h = height;
2068	/* No need to dirtify here, the states are still dirtified because they weren't
2069	* applied since the last SetupForBlit call. Otherwise last_was_blit would not
2070	* be set
2071	*/
2072	}
2073	TRACE("Context is already set up for blitting, nothing to do\n");
2074	return;
2075	}
2076	context->last_was_blit = TRUE;
2077
2078	/* TODO: Use a display list */
2079
2080	/* Disable shaders */
2081	ENTER_GL();
2082	This->shader_backend->shader_select(context, FALSE, FALSE);
2083	LEAVE_GL();
2084
2085	Context_MarkStateDirty(context, STATE_VSHADER, StateTable);
2086	Context_MarkStateDirty(context, STATE_PIXELSHADER, StateTable);
2087
2088	/* Call ENTER_GL() once for all gl calls below. In theory we should not call
2089	* helper functions in between gl calls. This function is full of Context_MarkStateDirty
2090	* which can safely be called from here, we only lock once instead locking/unlocking
2091	* after each GL call.
2092	*/
2093	ENTER_GL();
2094
2095	/* Disable all textures. The caller can then bind a texture it wants to blit
2096	* from
2097	*
2098	* The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
2099	* function texture unit. No need to care for higher samplers
2100	*/
2101	for (i = gl_info->limits.textures - 1; i > 0 ; --i)
2102	{
2103	sampler = This->rev_tex_unit_map[i];
2104	GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i));
2105	checkGLcall("glActiveTextureARB");
2106
2107	if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
2108	{
2109	glDisable(GL_TEXTURE_CUBE_MAP_ARB);
2110	checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
2111	}
2112	glDisable(GL_TEXTURE_3D);
2113	checkGLcall("glDisable GL_TEXTURE_3D");
2114	if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
2115	{
2116	glDisable(GL_TEXTURE_RECTANGLE_ARB);
2117	checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
2118	}
2119	glDisable(GL_TEXTURE_2D);
2120	checkGLcall("glDisable GL_TEXTURE_2D");
2121
2122	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
2123	checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
2124
2125	if (sampler != WINED3D_UNMAPPED_STAGE)
2126	{
2127	if (sampler < MAX_TEXTURES) {
2128	Context_MarkStateDirty(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable);
2129	}
2130	Context_MarkStateDirty(context, STATE_SAMPLER(sampler), StateTable);
2131	}
2132	}
2133	GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB));
2134	checkGLcall("glActiveTextureARB");
2135
2136	sampler = This->rev_tex_unit_map[0];
2137
2138	if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
2139	{
2140	glDisable(GL_TEXTURE_CUBE_MAP_ARB);
2141	checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
2142	}
2143	glDisable(GL_TEXTURE_3D);
2144	checkGLcall("glDisable GL_TEXTURE_3D");
2145	if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
2146	{
2147	glDisable(GL_TEXTURE_RECTANGLE_ARB);
2148	checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
2149	}
2150	glDisable(GL_TEXTURE_2D);
2151	checkGLcall("glDisable GL_TEXTURE_2D");
2152
2153	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
2154
2155	glMatrixMode(GL_TEXTURE);
2156	checkGLcall("glMatrixMode(GL_TEXTURE)");
2157	glLoadIdentity();
2158	checkGLcall("glLoadIdentity()");
2159
2160	if (gl_info->supported[EXT_TEXTURE_LOD_BIAS])
2161	{
2162	glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
2163	GL_TEXTURE_LOD_BIAS_EXT,
2164	0.0f);
2165	checkGLcall("glTexEnvi GL_TEXTURE_LOD_BIAS_EXT ...");
2166	}
2167
2168	if (sampler != WINED3D_UNMAPPED_STAGE)
2169	{
2170	if (sampler < MAX_TEXTURES) {
2171	Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_TEXTURE0 + sampler), StateTable);
2172	Context_MarkStateDirty(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable);
2173	}
2174	Context_MarkStateDirty(context, STATE_SAMPLER(sampler), StateTable);
2175	}
2176
2177	/* Other misc states */
2178	glDisable(GL_ALPHA_TEST);
2179	checkGLcall("glDisable(GL_ALPHA_TEST)");
2180	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHATESTENABLE), StateTable);
2181	glDisable(GL_LIGHTING);
2182	checkGLcall("glDisable GL_LIGHTING");
2183	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_LIGHTING), StateTable);
2184	glDisable(GL_DEPTH_TEST);
2185	checkGLcall("glDisable GL_DEPTH_TEST");
2186	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ZENABLE), StateTable);
2187	glDisableWINE(GL_FOG);
2188	checkGLcall("glDisable GL_FOG");
2189	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_FOGENABLE), StateTable);
2190	glDisable(GL_BLEND);
2191	checkGLcall("glDisable GL_BLEND");
2192	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2193	glDisable(GL_CULL_FACE);
2194	checkGLcall("glDisable GL_CULL_FACE");
2195	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CULLMODE), StateTable);
2196	glDisable(GL_STENCIL_TEST);
2197	checkGLcall("glDisable GL_STENCIL_TEST");
2198	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_STENCILENABLE), StateTable);
2199	glDisable(GL_SCISSOR_TEST);
2200	checkGLcall("glDisable GL_SCISSOR_TEST");
2201	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), StateTable);
2202	if (gl_info->supported[ARB_POINT_SPRITE])
2203	{
2204	glDisable(GL_POINT_SPRITE_ARB);
2205	checkGLcall("glDisable GL_POINT_SPRITE_ARB");
2206	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_POINTSPRITEENABLE), StateTable);
2207	}
2208	glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
2209	checkGLcall("glColorMask");
2210	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE), StateTable);
2211	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE1), StateTable);
2212	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE2), StateTable);
2213	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE3), StateTable);
2214	if (gl_info->supported[EXT_SECONDARY_COLOR])
2215	{
2216	glDisable(GL_COLOR_SUM_EXT);
2217	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SPECULARENABLE), StateTable);
2218	checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
2219	}
2220
2221	/* Setup transforms */
2222	glMatrixMode(GL_MODELVIEW);
2223	checkGLcall("glMatrixMode(GL_MODELVIEW)");
2224	glLoadIdentity();
2225	checkGLcall("glLoadIdentity()");
2226	Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_WORLDMATRIX(0)), StateTable);
2227
2228	context->last_was_rhw = TRUE;
2229	Context_MarkStateDirty(context, STATE_VDECL, StateTable); /* because of last_was_rhw = TRUE */
2230
2231	glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
2232	glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
2233	glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
2234	glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
2235	glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
2236	glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
2237	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_CLIPPING), StateTable);
2238
2239	set_blit_dimension(width, height);
2240
2241	LEAVE_GL();
2242
2243	context->blit_w = width; context->blit_h = height;
2244	Context_MarkStateDirty(context, STATE_VIEWPORT, StateTable);
2245	Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);
2246
2247
2248	This->frag_pipe->enable_extension((IWineD3DDevice *) This, FALSE);
2249	}
2250
2251	/*****************************************************************************
2252	* findThreadContextForSwapChain
2253	*
2254	* Searches a swapchain for all contexts and picks one for the thread tid.
2255	* If none can be found the swapchain is requested to create a new context
2256	*
2257	*****************************************************************************/
2258	static struct wined3d_context findThreadContextForSwapChain(IWineD3DSwapChain swapchain
2259	#if !defined(VBOX_WINE_WITH_SINGLE_CONTEXT) && !defined(VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT)
2260	, DWORD tid
2261	#endif
2262	)
2263	{
2264	#ifdef VBOX_WINE_WITH_SINGLE_CONTEXT
2265	IWineD3DDeviceImpl device = ((IWineD3DSwapChainImpl)swapchain)->device;
2266	if (device->numContexts)
2267	return device->contexts[0];
2268	#else
2269	unsigned int i;
2270	# ifdef VBOX_WITH_WDDM
2271	IWineD3DDeviceImpl device = ((IWineD3DSwapChainImpl)swapchain)->device;
2272	for (i = 0; i < device->numContexts; ++i)
2273	{
2274	# ifdef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2275	# error "port me!"
2276	# endif
2277	if (device->contexts[i]->tid == tid)
2278	return device->contexts[i];
2279	}
2280	# else
2281	for(i = 0; i < ((IWineD3DSwapChainImpl *) swapchain)->num_contexts; i++) {
2282	# ifdef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2283	if(VBoxTlsRefIsFunctional(((IWineD3DSwapChainImpl *) swapchain)->context[i])) {
2284	# else
2285	if(((IWineD3DSwapChainImpl *) swapchain)->context[i]->tid == tid) {
2286	# endif
2287	return ((IWineD3DSwapChainImpl *) swapchain)->context[i];
2288	}
2289	}
2290	# endif
2291	#endif
2292
2293	/* Create a new context for the thread */
2294	return swapchain_create_context_for_thread(swapchain);
2295	}
2296
2297	#ifndef VBOX_WINE_WITH_SINGLE_CONTEXT
2298	/*****************************************************************************
2299	* FindContext
2300	*
2301	* Finds a context for the current render target and thread
2302	*
2303	* Parameters:
2304	* target: Render target to find the context for
2305	* tid: Thread to activate the context for
2306	*
2307	* Returns: The needed context
2308	*
2309	*****************************************************************************/
2310	static struct wined3d_context FindContext(IWineD3DDeviceImpl This, IWineD3DSurface *target)
2311	{
2312	IWineD3DSwapChain *swapchain = NULL;
2313	struct wined3d_context *current_context = context_get_current();
2314	#ifndef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2315	DWORD tid = GetCurrentThreadId();
2316	#endif
2317	struct wined3d_context *context;
2318
2319	if (current_context
2320	#ifndef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2321	&& current_context->destroyed
2322	#else
2323	&& !VBoxTlsRefIsFunctional(current_context)
2324	#endif
2325	) current_context = NULL;
2326
2327	if (!target)
2328	{
2329	if (current_context
2330	&& current_context->current_rt
2331	&& context_get_device(current_context) == This
2332	)
2333	{
2334	target = current_context->current_rt;
2335	}
2336	else
2337	{
2338	#ifdef VBOX_WITH_WDDM
2339	/* tmp work-around */
2340	IWineD3DSwapChainImpl swapchain = (IWineD3DSwapChainImpl )This->swapchains[This->NumberOfSwapChains-1];
2341	#else
2342	IWineD3DSwapChainImpl swapchain = (IWineD3DSwapChainImpl )This->swapchains[0];
2343	#endif
2344	if (swapchain->backBuffer) target = swapchain->backBuffer[0];
2345	else target = swapchain->frontBuffer;
2346	}
2347	}
2348
2349	if (current_context && current_context->current_rt == target)
2350	{
2351	#ifdef VBOX_WITH_WDDM
2352	IWineD3DSwapChain *swapchain = NULL;
2353	if (SUCCEEDED(IWineD3DSurface_GetContainer(target, &IID_IWineD3DSwapChain, (void **)&swapchain))) {
2354	context_validate(current_context, (IWineD3DSwapChainImpl*)swapchain);
2355	IWineD3DSwapChain_Release(swapchain);
2356	}
2357	else {
2358	/* tmp work-around */
2359	context_validate(current_context,
2360	NULL //(IWineD3DSwapChainImpl*)current_context->device->swapchains[current_context->device->NumberOfSwapChains-1]
2361	);
2362	}
2363	#else
2364	context_validate(current_context);
2365	#endif
2366	return current_context;
2367	}
2368
2369	if (SUCCEEDED(IWineD3DSurface_GetContainer(target, &IID_IWineD3DSwapChain, (void **)&swapchain))) {
2370	TRACE("Rendering onscreen\n");
2371
2372	context = findThreadContextForSwapChain(swapchain
2373	#ifndef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2374	, tid
2375	#endif
2376	);
2377	#ifdef VBOX_WITH_WDDM
2378	context_validate(context, (IWineD3DSwapChainImpl*)swapchain);
2379	#endif
2380	IWineD3DSwapChain_Release(swapchain);
2381	}
2382	else
2383	{
2384	TRACE("Rendering offscreen\n");
2385
2386	/* Stay with the currently active context. */
2387	if (current_context && context_get_device(current_context) == This)
2388	{
2389	context = current_context;
2390	}
2391	else
2392	{
2393	/* This may happen if the app jumps straight into offscreen rendering
2394	* Start using the context of the primary swapchain. tid == 0 is no problem
2395	* for findThreadContextForSwapChain.
2396	*
2397	* Can also happen on thread switches - in that case findThreadContextForSwapChain
2398	* is perfect to call. */
2399	#ifdef VBOX_WITH_WDDM /* tmp work-around */
2400	context = findThreadContextForSwapChain(This->swapchains[This->NumberOfSwapChains-1]
2401	# ifndef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2402	, tid
2403	# endif
2404	);
2405	#else
2406	context = findThreadContextForSwapChain(This->swapchains[0]
2407	# ifndef VBOX_WINE_WITH_SINGLE_SWAPCHAIN_CONTEXT
2408	, tid
2409	# endif
2410	);
2411	#endif
2412	}
2413	#ifdef VBOX_WITH_WDDM
2414	context_validate(context,
2415	NULL //(IWineD3DSwapChainImpl)This->swapchains[This->NumberOfSwapChains-1] / tmp work-around */
2416	);
2417	#endif
2418	}
2419
2420	#ifndef VBOX_WITH_WDDM
2421	context_validate(context);
2422	#endif
2423
2424	return context;
2425	}
2426	#else
2427	/*****************************************************************************
2428	* FindContext
2429	*
2430	* Finds a context for the current render target and thread
2431	*
2432	* Parameters:
2433	* target: Render target to find the context for
2434	* tid: Thread to activate the context for
2435	*
2436	* Returns: The needed context
2437	*
2438	*****************************************************************************/
2439	static struct wined3d_context FindContext(IWineD3DDeviceImpl This, IWineD3DSurface *target)
2440	{
2441	IWineD3DSwapChain *swapchain = NULL;
2442	struct wined3d_context *context = This->numContexts ? This->contexts[0] : NULL;
2443
2444
2445	if (context && !VBoxTlsRefIsFunctional(context))
2446	{
2447	ERR("context is destroyed");
2448	}
2449
2450	if (!target)
2451	{
2452	if (context
2453	&& context->current_rt
2454	&& context_get_device(context) == This
2455	)
2456	{
2457	target = context->current_rt;
2458	}
2459	else
2460	{
2461	IWineD3DSwapChainImpl *swapchain = swapchain_find_valid(This);
2462	if (!swapchain)
2463	swapchain = (IWineD3DSwapChainImpl )This->swapchains[This->NumberOfSwapChains-1]; / just fallback to anything to avoid NPE */
2464	if (swapchain->backBuffer) target = swapchain->backBuffer[0];
2465	else if (swapchain->frontBuffer) target = swapchain->frontBuffer;
2466	else target = swapchain->presentRt;
2467	}
2468	}
2469
2470	if (context && context->current_rt == target)
2471	{
2472	IWineD3DSwapChain *swapchain = NULL;
2473	if (SUCCEEDED(IWineD3DSurface_GetContainer(target, &IID_IWineD3DSwapChain, (void **)&swapchain))) {
2474	context_validate(context, (IWineD3DSwapChainImpl*)swapchain
2475	# ifdef DEBUG_misha
2476	, TRUE
2477	# endif
2478	);
2479	IWineD3DSwapChain_Release(swapchain);
2480	}
2481	else {
2482	context_validate_adjust_wnd(context);
2483	}
2484	return context;
2485	}
2486
2487	if (SUCCEEDED(IWineD3DSurface_GetContainer(target, &IID_IWineD3DSwapChain, (void **)&swapchain))) {
2488	TRACE("Rendering onscreen\n");
2489
2490	context = findThreadContextForSwapChain(swapchain);
2491	context_validate(context, (IWineD3DSwapChainImpl*)swapchain
2492	# ifdef DEBUG_misha
2493	, TRUE
2494	# endif
2495	);
2496	IWineD3DSwapChain_Release(swapchain);
2497	}
2498	else
2499	{
2500	if (context)
2501	{
2502	context_validate_adjust_wnd(context);
2503	}
2504	else
2505	{
2506	IWineD3DSwapChainImpl *swapchain = swapchain_find_valid(This);
2507	if (!swapchain)
2508	swapchain = (IWineD3DSwapChainImpl )This->swapchains[This->NumberOfSwapChains-1]; / just fallback to anything to avoid NPE */
2509	context = findThreadContextForSwapChain((IWineD3DSwapChain*)swapchain);
2510	context_validate(context, swapchain
2511	# ifdef DEBUG_misha
2512	, TRUE
2513	# endif
2514	);
2515	}
2516
2517	TRACE("Rendering offscreen\n");
2518	}
2519
2520	return context;
2521	}
2522	#endif
2523
2524	/* Context activation is done by the caller. */
2525	static void context_apply_draw_buffer(struct wined3d_context *context, BOOL blit)
2526	{
2527	const struct wined3d_gl_info *gl_info = context->gl_info;
2528	IWineD3DSurface *rt = context->current_rt;
2529	IWineD3DDeviceImpl *device;
2530
2531	device = ((IWineD3DSurfaceImpl *)rt)->resource.device;
2532	if (!surface_is_offscreen(rt))
2533	{
2534	ENTER_GL();
2535	glDrawBuffer(surface_get_gl_buffer(rt));
2536	checkGLcall("glDrawBuffers()");
2537	LEAVE_GL();
2538	}
2539	else
2540	{
2541	ENTER_GL();
2542	if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2543	{
2544	if (!blit)
2545	{
2546	if (gl_info->supported[ARB_DRAW_BUFFERS])
2547	{
2548	GL_EXTCALL(glDrawBuffersARB(gl_info->limits.buffers, device->draw_buffers));
2549	checkGLcall("glDrawBuffers()");
2550	}
2551	else
2552	{
2553	glDrawBuffer(device->draw_buffers[0]);
2554	checkGLcall("glDrawBuffer()");
2555	}
2556	} else {
2557	glDrawBuffer(GL_COLOR_ATTACHMENT0);
2558	checkGLcall("glDrawBuffer()");
2559	}
2560	}
2561	else
2562	{
2563	glDrawBuffer(device->offscreenBuffer);
2564	checkGLcall("glDrawBuffer()");
2565	}
2566	LEAVE_GL();
2567	}
2568	}
2569
2570	/* GL locking is done by the caller. */
2571	void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
2572	{
2573	glDrawBuffer(buffer);
2574	checkGLcall("glDrawBuffer()");
2575	context->draw_buffer_dirty = TRUE;
2576	}
2577
2578	static inline void context_set_render_offscreen(struct wined3d_context context, const struct StateEntry StateTable,
2579	BOOL offscreen)
2580	{
2581	if (context->render_offscreen == offscreen) return;
2582
2583	Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);
2584	Context_MarkStateDirty(context, STATE_VDECL, StateTable);
2585	Context_MarkStateDirty(context, STATE_VIEWPORT, StateTable);
2586	Context_MarkStateDirty(context, STATE_SCISSORRECT, StateTable);
2587	Context_MarkStateDirty(context, STATE_FRONTFACE, StateTable);
2588	context->render_offscreen = offscreen;
2589	}
2590
2591	static BOOL match_depth_stencil_format(const struct wined3d_format_desc *existing,
2592	const struct wined3d_format_desc *required)
2593	{
2594	short existing_depth, existing_stencil, required_depth, required_stencil;
2595
2596	if(existing == required) return TRUE;
2597	if((existing->Flags & WINED3DFMT_FLAG_FLOAT) != (required->Flags & WINED3DFMT_FLAG_FLOAT)) return FALSE;
2598
2599	getDepthStencilBits(existing, &existing_depth, &existing_stencil);
2600	getDepthStencilBits(required, &required_depth, &required_stencil);
2601
2602	if(existing_depth < required_depth) return FALSE;
2603	/* If stencil bits are used the exact amount is required - otherwise wrapping
2604	* won't work correctly */
2605	if(required_stencil && required_stencil != existing_stencil) return FALSE;
2606	return TRUE;
2607	}
2608	/* The caller provides a context */
2609	static void context_validate_onscreen_formats(IWineD3DDeviceImpl device, struct wined3d_context context)
2610	{
2611	/* Onscreen surfaces are always in a swapchain */
2612	IWineD3DSurfaceImpl depth_stencil = (IWineD3DSurfaceImpl ) device->stencilBufferTarget;
2613	IWineD3DSwapChainImpl swapchain = (IWineD3DSwapChainImpl ) ((IWineD3DSurfaceImpl *)context->current_rt)->container;
2614
2615	if (!depth_stencil) return;
2616	if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->resource.format_desc)) return;
2617
2618	/* TODO: If the requested format would satisfy the needs of the existing one(reverse match),
2619	* or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new
2620	* format. */
2621	WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n");
2622
2623	/* The currently active context is the necessary context to access the swapchain's onscreen buffers */
2624	IWineD3DSurface_LoadLocation(context->current_rt, SFLAG_INTEXTURE, NULL);
2625	swapchain->render_to_fbo = TRUE;
2626	context_set_render_offscreen(context, device->StateTable, TRUE);
2627	}
2628
2629	/* Context activation is done by the caller. */
2630	static void context_apply_state(struct wined3d_context context, IWineD3DDeviceImpl device, enum ContextUsage usage)
2631	{
2632	const struct StateEntry *state_table = device->StateTable;
2633	unsigned int i;
2634
2635	switch (usage) {
2636	case CTXUSAGE_CLEAR:
2637	case CTXUSAGE_DRAWPRIM:
2638	if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) {
2639	if (!context->render_offscreen) context_validate_onscreen_formats(device, context);
2640	ENTER_GL();
2641	context_apply_fbo_state(context);
2642	LEAVE_GL();
2643	}
2644	if (context->draw_buffer_dirty) {
2645	context_apply_draw_buffer(context, FALSE);
2646	context->draw_buffer_dirty = FALSE;
2647	}
2648	break;
2649
2650	case CTXUSAGE_BLIT:
2651	if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) {
2652	if (!context->render_offscreen) context_validate_onscreen_formats(device, context);
2653	if (context->render_offscreen)
2654	{
2655	FIXME("Activating for CTXUSAGE_BLIT for an offscreen target with ORM_FBO. This should be avoided.\n");
2656	surface_internal_preload(context->current_rt, SRGB_RGB);
2657
2658	ENTER_GL();
2659	context_bind_fbo(context, GL_FRAMEBUFFER, &context->dst_fbo);
2660	context_attach_surface_fbo(context, GL_FRAMEBUFFER, 0, (IWineD3DSurfaceImpl *)context->current_rt);
2661	context_attach_depth_stencil_fbo(context, GL_FRAMEBUFFER, NULL, FALSE);
2662	LEAVE_GL();
2663	} else {
2664	ENTER_GL();
2665	context_bind_fbo(context, GL_FRAMEBUFFER, NULL);
2666	LEAVE_GL();
2667	}
2668	context->draw_buffer_dirty = TRUE;
2669	}
2670	if (context->draw_buffer_dirty) {
2671	context_apply_draw_buffer(context, TRUE);
2672	if (wined3d_settings.offscreen_rendering_mode != ORM_FBO) {
2673	context->draw_buffer_dirty = FALSE;
2674	}
2675	}
2676	break;
2677
2678	default:
2679	break;
2680	}
2681
2682	switch(usage) {
2683	case CTXUSAGE_RESOURCELOAD:
2684	/* This does not require any special states to be set up */
2685	break;
2686
2687	case CTXUSAGE_CLEAR:
2688	if(context->last_was_blit) {
2689	device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
2690	}
2691
2692	/* Blending and clearing should be orthogonal, but tests on the nvidia driver show that disabling
2693	* blending when clearing improves the clearing performance incredibly.
2694	*/
2695	ENTER_GL();
2696	glDisable(GL_BLEND);
2697	LEAVE_GL();
2698	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), state_table);
2699
2700	ENTER_GL();
2701	glEnable(GL_SCISSOR_TEST);
2702	checkGLcall("glEnable GL_SCISSOR_TEST");
2703	LEAVE_GL();
2704	context->last_was_blit = FALSE;
2705	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), state_table);
2706	Context_MarkStateDirty(context, STATE_SCISSORRECT, state_table);
2707	break;
2708
2709	case CTXUSAGE_DRAWPRIM:
2710	/* This needs all dirty states applied */
2711	if(context->last_was_blit) {
2712	device->frag_pipe->enable_extension((IWineD3DDevice *)device, TRUE);
2713	}
2714
2715	IWineD3DDeviceImpl_FindTexUnitMap(device);
2716	device_preload_textures(device);
2717	if (isStateDirty(context, STATE_VDECL))
2718	device_update_stream_info(device, context->gl_info);
2719
2720	ENTER_GL();
2721	for (i = 0; i < context->numDirtyEntries; ++i)
2722	{
2723	DWORD rep = context->dirtyArray[i];
2724	DWORD idx = rep / (sizeof(context->isStateDirty) CHAR_BIT);
2725	BYTE shift = rep & ((sizeof(context->isStateDirty) CHAR_BIT) - 1);
2726	context->isStateDirty[idx] &= ~(1 << shift);
2727	state_table[rep].apply(rep, device->stateBlock, context);
2728	}
2729	LEAVE_GL();
2730	context->numDirtyEntries = 0; /* This makes the whole list clean */
2731	context->last_was_blit = FALSE;
2732	break;
2733
2734	case CTXUSAGE_BLIT:
2735	SetupForBlit(device, context);
2736	break;
2737
2738	default:
2739	FIXME("Unexpected context usage requested\n");
2740	}
2741	}
2742
2743	static void context_setup_target(IWineD3DDeviceImpl device, struct wined3d_context context, IWineD3DSurface *target)
2744	{
2745	BOOL old_render_offscreen = context->render_offscreen, render_offscreen;
2746	const struct StateEntry *StateTable = device->StateTable;
2747
2748	if (!target) return;
2749	else if (context->current_rt == target) return;
2750	render_offscreen = surface_is_offscreen(target);
2751
2752	context_set_render_offscreen(context, StateTable, render_offscreen);
2753
2754	/* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
2755	* the alpha blend state changes with different render target formats. */
2756	if (!context->current_rt)
2757	{
2758	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2759	}
2760	else
2761	{
2762	const struct wined3d_format_desc old = ((IWineD3DSurfaceImpl )context->current_rt)->resource.format_desc;
2763	const struct wined3d_format_desc new = ((IWineD3DSurfaceImpl )target)->resource.format_desc;
2764
2765	if (old->format != new->format)
2766	{
2767	/* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
2768	if ((old->alpha_mask && !new->alpha_mask) \|\| (!old->alpha_mask && new->alpha_mask)
2769	\|\| !(new->Flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING))
2770	{
2771	Context_MarkStateDirty(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable);
2772	}
2773	}
2774
2775	/* When switching away from an offscreen render target, and we're not
2776	* using FBOs, we have to read the drawable into the texture. This is
2777	* done via PreLoad (and SFLAG_INDRAWABLE set on the surface). There
2778	* are some things that need care though. PreLoad needs a GL context,
2779	* and FindContext is called before the context is activated. It also
2780	* has to be called with the old rendertarget active, otherwise a
2781	* wrong drawable is read. */
2782	if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
2783	&& old_render_offscreen && context->current_rt != target)
2784	{
2785	BOOL oldInDraw = device->isInDraw;
2786
2787	ERR("context_setup_target: Should not be here!!");
2788
2789	/* surface_internal_preload() requires a context to load the
2790	* texture, so it will call context_acquire(). Set isInDraw to true
2791	* to signal surface_internal_preload() that it has a context. */
2792
2793	/* FIXME: This is just broken. There's no guarantee whatsoever
2794	* that the currently active context, if any, is appropriate for
2795	* reading back the render target. We should probably call
2796	* context_set_current(context) here and then rely on
2797	* context_acquire() doing the right thing. */
2798	device->isInDraw = TRUE;
2799
2800	/* Read the back buffer of the old drawable into the destination texture. */
2801	if (((IWineD3DSurfaceImpl *)context->current_rt)->texture_name_srgb)
2802	{
2803	surface_internal_preload(context->current_rt, SRGB_BOTH);
2804	}
2805	else
2806	{
2807	surface_internal_preload(context->current_rt, SRGB_RGB);
2808	}
2809
2810	IWineD3DSurface_ModifyLocation(context->current_rt, SFLAG_INDRAWABLE, FALSE);
2811
2812	device->isInDraw = oldInDraw;
2813	}
2814	}
2815
2816	context->draw_buffer_dirty = TRUE;
2817	context->current_rt = target;
2818	}
2819
2820	/*****************************************************************************
2821	* context_acquire
2822	*
2823	* Finds a rendering context and drawable matching the device and render
2824	* target for the current thread, activates them and puts them into the
2825	* requested state.
2826	*
2827	* Params:
2828	* This: Device to activate the context for
2829	* target: Requested render target
2830	* usage: Prepares the context for blitting, drawing or other actions
2831	*
2832	*****************************************************************************/
2833	struct wined3d_context context_acquire(IWineD3DDeviceImpl device, IWineD3DSurface *target, enum ContextUsage usage)
2834	{
2835	struct wined3d_context *current_context = context_get_current();
2836	struct wined3d_context *context;
2837
2838	TRACE("device %p, target %p, usage %#x.\n", device, target, usage);
2839
2840	context = FindContext(device, target);
2841	context_setup_target(device, context, target);
2842	context_enter(context);
2843	if (!context->valid)
2844	{
2845	ERR("context_acquire failed to get a valid context!");
2846	return context;
2847	}
2848
2849	if (context != current_context)
2850	{
2851	if (!context_set_current(context)) ERR("Failed to activate the new context.\n");
2852	else device->frag_pipe->enable_extension((IWineD3DDevice *)device, !context->last_was_blit);
2853
2854	if (context->vshader_const_dirty)
2855	{
2856	memset(context->vshader_const_dirty, 1,
2857	sizeof(context->vshader_const_dirty) device->d3d_vshader_constantF);
2858	device->highest_dirty_vs_const = device->d3d_vshader_constantF;
2859	}
2860	if (context->pshader_const_dirty)
2861	{
2862	memset(context->pshader_const_dirty, 1,
2863	sizeof(context->pshader_const_dirty) device->d3d_pshader_constantF);
2864	device->highest_dirty_ps_const = device->d3d_pshader_constantF;
2865	}
2866	}
2867	else if (context->restore_ctx)
2868	{
2869	#ifdef VBOX_WITH_WDDM
2870	if (!pwglMakeCurrent(context->currentSwapchain->hDC, context->glCtx))
2871	{
2872	DWORD err = GetLastError();
2873	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
2874	context->currentSwapchain->hDC, context->glCtx, err);
2875	}
2876	#else
2877	if (!pwglMakeCurrent(context->hdc, context->glCtx))
2878	{
2879	DWORD err = GetLastError();
2880	ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
2881	context->hdc, context->glCtx, err);
2882	}
2883	#endif
2884	}
2885
2886	#ifdef DEBUG
2887	Assert(context->tid == GetCurrentThreadId());
2888	#endif
2889
2890	context_apply_state(context, device, usage);
2891
2892	#ifdef DEBUG
2893	Assert(context->tid == GetCurrentThreadId());
2894	#endif
2895
2896	return context;
2897	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Wine/wined3d/context.c@ 41481

Download in other formats: