2 * Context and render target management in wined3d
4 * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
5 * Copyright 2009 Henri Verbeet for CodeWeavers
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.
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.
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
27 #include "wined3d_private.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(d3d
);
31 #define GLINFO_LOCATION (*gl_info)
33 static DWORD wined3d_context_tls_idx
;
35 /* FBO helper functions */
37 /* GL locking is done by the caller */
38 void context_bind_fbo(struct wined3d_context
*context
, GLenum target
, GLuint
*fbo
)
40 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
51 gl_info
->fbo_ops
.glGenFramebuffers(1, fbo
);
52 checkGLcall("glGenFramebuffers()");
53 TRACE("Created FBO %u.\n", *fbo
);
60 case GL_READ_FRAMEBUFFER
:
61 if (context
->fbo_read_binding
== f
) return;
62 context
->fbo_read_binding
= f
;
65 case GL_DRAW_FRAMEBUFFER
:
66 if (context
->fbo_draw_binding
== f
) return;
67 context
->fbo_draw_binding
= f
;
71 if (context
->fbo_read_binding
== f
72 && context
->fbo_draw_binding
== f
) return;
73 context
->fbo_read_binding
= f
;
74 context
->fbo_draw_binding
= f
;
78 FIXME("Unhandled target %#x.\n", target
);
82 gl_info
->fbo_ops
.glBindFramebuffer(target
, f
);
83 checkGLcall("glBindFramebuffer()");
86 /* GL locking is done by the caller */
87 static void context_clean_fbo_attachments(const struct wined3d_gl_info
*gl_info
)
91 for (i
= 0; i
< gl_info
->limits
.buffers
; ++i
)
93 gl_info
->fbo_ops
.glFramebufferTexture2D(GL_FRAMEBUFFER
, GL_COLOR_ATTACHMENT0
+ i
, GL_TEXTURE_2D
, 0, 0);
94 checkGLcall("glFramebufferTexture2D()");
96 gl_info
->fbo_ops
.glFramebufferTexture2D(GL_FRAMEBUFFER
, GL_DEPTH_ATTACHMENT
, GL_TEXTURE_2D
, 0, 0);
97 checkGLcall("glFramebufferTexture2D()");
99 gl_info
->fbo_ops
.glFramebufferTexture2D(GL_FRAMEBUFFER
, GL_STENCIL_ATTACHMENT
, GL_TEXTURE_2D
, 0, 0);
100 checkGLcall("glFramebufferTexture2D()");
103 /* GL locking is done by the caller */
104 static void context_destroy_fbo(struct wined3d_context
*context
, GLuint
*fbo
)
106 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
108 context_bind_fbo(context
, GL_FRAMEBUFFER
, fbo
);
109 context_clean_fbo_attachments(gl_info
);
110 context_bind_fbo(context
, GL_FRAMEBUFFER
, NULL
);
112 gl_info
->fbo_ops
.glDeleteFramebuffers(1, fbo
);
113 checkGLcall("glDeleteFramebuffers()");
116 /* GL locking is done by the caller */
117 static void context_apply_attachment_filter_states(IWineD3DSurface
*surface
)
119 IWineD3DBaseTextureImpl
*texture_impl
;
121 /* Update base texture states array */
122 if (SUCCEEDED(IWineD3DSurface_GetContainer(surface
, &IID_IWineD3DBaseTexture
, (void **)&texture_impl
)))
124 IWineD3DSurfaceImpl
*surface_impl
= (IWineD3DSurfaceImpl
*)surface
;
125 IWineD3DDeviceImpl
*device
= surface_impl
->resource
.device
;
126 BOOL update_minfilter
= FALSE
;
127 BOOL update_magfilter
= FALSE
;
129 if (texture_impl
->baseTexture
.texture_rgb
.states
[WINED3DTEXSTA_MINFILTER
] != WINED3DTEXF_POINT
130 || texture_impl
->baseTexture
.texture_rgb
.states
[WINED3DTEXSTA_MIPFILTER
] != WINED3DTEXF_NONE
)
132 texture_impl
->baseTexture
.texture_rgb
.states
[WINED3DTEXSTA_MINFILTER
] = WINED3DTEXF_POINT
;
133 texture_impl
->baseTexture
.texture_rgb
.states
[WINED3DTEXSTA_MIPFILTER
] = WINED3DTEXF_NONE
;
134 update_minfilter
= TRUE
;
137 if (texture_impl
->baseTexture
.texture_rgb
.states
[WINED3DTEXSTA_MAGFILTER
] != WINED3DTEXF_POINT
)
139 texture_impl
->baseTexture
.texture_rgb
.states
[WINED3DTEXSTA_MAGFILTER
] = WINED3DTEXF_POINT
;
140 update_magfilter
= TRUE
;
143 if (texture_impl
->baseTexture
.bindCount
)
145 WARN("Render targets should not be bound to a sampler\n");
146 IWineD3DDeviceImpl_MarkStateDirty(device
, STATE_SAMPLER(texture_impl
->baseTexture
.sampler
));
149 IWineD3DBaseTexture_Release((IWineD3DBaseTexture
*)texture_impl
);
151 if (update_minfilter
|| update_magfilter
)
153 GLenum target
, bind_target
;
156 target
= surface_impl
->texture_target
;
157 if (target
== GL_TEXTURE_2D
)
159 bind_target
= GL_TEXTURE_2D
;
160 glGetIntegerv(GL_TEXTURE_BINDING_2D
, &old_binding
);
162 else if (target
== GL_TEXTURE_RECTANGLE_ARB
)
164 bind_target
= GL_TEXTURE_RECTANGLE_ARB
;
165 glGetIntegerv(GL_TEXTURE_BINDING_RECTANGLE_ARB
, &old_binding
);
169 bind_target
= GL_TEXTURE_CUBE_MAP_ARB
;
170 glGetIntegerv(GL_TEXTURE_BINDING_CUBE_MAP_ARB
, &old_binding
);
173 glBindTexture(bind_target
, surface_impl
->texture_name
);
174 if (update_minfilter
) glTexParameteri(bind_target
, GL_TEXTURE_MIN_FILTER
, GL_NEAREST
);
175 if (update_magfilter
) glTexParameteri(bind_target
, GL_TEXTURE_MAG_FILTER
, GL_NEAREST
);
176 glBindTexture(bind_target
, old_binding
);
179 checkGLcall("apply_attachment_filter_states()");
183 /* GL locking is done by the caller */
184 void context_attach_depth_stencil_fbo(struct wined3d_context
*context
,
185 GLenum fbo_target
, IWineD3DSurface
*depth_stencil
, BOOL use_render_buffer
)
187 IWineD3DSurfaceImpl
*depth_stencil_impl
= (IWineD3DSurfaceImpl
*)depth_stencil
;
188 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
190 TRACE("Attach depth stencil %p\n", depth_stencil
);
194 DWORD format_flags
= depth_stencil_impl
->resource
.format_desc
->Flags
;
196 if (use_render_buffer
&& depth_stencil_impl
->current_renderbuffer
)
198 if (format_flags
& WINED3DFMT_FLAG_DEPTH
)
200 gl_info
->fbo_ops
.glFramebufferRenderbuffer(fbo_target
, GL_DEPTH_ATTACHMENT
,
201 GL_RENDERBUFFER
, depth_stencil_impl
->current_renderbuffer
->id
);
202 checkGLcall("glFramebufferRenderbuffer()");
205 if (format_flags
& WINED3DFMT_FLAG_STENCIL
)
207 gl_info
->fbo_ops
.glFramebufferRenderbuffer(fbo_target
, GL_STENCIL_ATTACHMENT
,
208 GL_RENDERBUFFER
, depth_stencil_impl
->current_renderbuffer
->id
);
209 checkGLcall("glFramebufferRenderbuffer()");
214 surface_prepare_texture(depth_stencil_impl
, gl_info
, FALSE
);
215 context_apply_attachment_filter_states(depth_stencil
);
217 if (format_flags
& WINED3DFMT_FLAG_DEPTH
)
219 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_DEPTH_ATTACHMENT
,
220 depth_stencil_impl
->texture_target
, depth_stencil_impl
->texture_name
,
221 depth_stencil_impl
->texture_level
);
222 checkGLcall("glFramebufferTexture2D()");
225 if (format_flags
& WINED3DFMT_FLAG_STENCIL
)
227 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_STENCIL_ATTACHMENT
,
228 depth_stencil_impl
->texture_target
, depth_stencil_impl
->texture_name
,
229 depth_stencil_impl
->texture_level
);
230 checkGLcall("glFramebufferTexture2D()");
234 if (!(format_flags
& WINED3DFMT_FLAG_DEPTH
))
236 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_DEPTH_ATTACHMENT
, GL_TEXTURE_2D
, 0, 0);
237 checkGLcall("glFramebufferTexture2D()");
240 if (!(format_flags
& WINED3DFMT_FLAG_STENCIL
))
242 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_STENCIL_ATTACHMENT
, GL_TEXTURE_2D
, 0, 0);
243 checkGLcall("glFramebufferTexture2D()");
248 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_DEPTH_ATTACHMENT
, GL_TEXTURE_2D
, 0, 0);
249 checkGLcall("glFramebufferTexture2D()");
251 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_STENCIL_ATTACHMENT
, GL_TEXTURE_2D
, 0, 0);
252 checkGLcall("glFramebufferTexture2D()");
256 /* GL locking is done by the caller */
257 void context_attach_surface_fbo(const struct wined3d_context
*context
,
258 GLenum fbo_target
, DWORD idx
, IWineD3DSurface
*surface
)
260 IWineD3DSurfaceImpl
*surface_impl
= (IWineD3DSurfaceImpl
*)surface
;
261 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
263 TRACE("Attach surface %p to %u\n", surface
, idx
);
267 surface_prepare_texture(surface_impl
, gl_info
, FALSE
);
268 context_apply_attachment_filter_states(surface
);
270 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_COLOR_ATTACHMENT0
+ idx
, surface_impl
->texture_target
,
271 surface_impl
->texture_name
, surface_impl
->texture_level
);
272 checkGLcall("glFramebufferTexture2D()");
276 gl_info
->fbo_ops
.glFramebufferTexture2D(fbo_target
, GL_COLOR_ATTACHMENT0
+ idx
, GL_TEXTURE_2D
, 0, 0);
277 checkGLcall("glFramebufferTexture2D()");
281 /* GL locking is done by the caller */
282 static void context_check_fbo_status(struct wined3d_context
*context
)
284 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
287 status
= gl_info
->fbo_ops
.glCheckFramebufferStatus(GL_FRAMEBUFFER
);
288 if (status
== GL_FRAMEBUFFER_COMPLETE
)
290 TRACE("FBO complete\n");
292 IWineD3DSurfaceImpl
*attachment
;
294 FIXME("FBO status %s (%#x)\n", debug_fbostatus(status
), status
);
296 if (!context
->current_fbo
)
298 ERR("FBO 0 is incomplete, driver bug?\n");
302 /* Dump the FBO attachments */
303 for (i
= 0; i
< gl_info
->limits
.buffers
; ++i
)
305 attachment
= (IWineD3DSurfaceImpl
*)context
->current_fbo
->render_targets
[i
];
308 FIXME("\tColor attachment %d: (%p) %s %ux%u\n",
309 i
, attachment
, debug_d3dformat(attachment
->resource
.format_desc
->format
),
310 attachment
->pow2Width
, attachment
->pow2Height
);
313 attachment
= (IWineD3DSurfaceImpl
*)context
->current_fbo
->depth_stencil
;
316 FIXME("\tDepth attachment: (%p) %s %ux%u\n",
317 attachment
, debug_d3dformat(attachment
->resource
.format_desc
->format
),
318 attachment
->pow2Width
, attachment
->pow2Height
);
323 static struct fbo_entry
*context_create_fbo_entry(struct wined3d_context
*context
)
325 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
326 IWineD3DDeviceImpl
*device
= context
->swapchain
->device
;
327 struct fbo_entry
*entry
;
329 entry
= HeapAlloc(GetProcessHeap(), 0, sizeof(*entry
));
330 entry
->render_targets
= HeapAlloc(GetProcessHeap(), 0, gl_info
->limits
.buffers
* sizeof(*entry
->render_targets
));
331 memcpy(entry
->render_targets
, device
->render_targets
, gl_info
->limits
.buffers
* sizeof(*entry
->render_targets
));
332 entry
->depth_stencil
= device
->stencilBufferTarget
;
333 entry
->attached
= FALSE
;
339 /* GL locking is done by the caller */
340 static void context_reuse_fbo_entry(struct wined3d_context
*context
, struct fbo_entry
*entry
)
342 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
343 IWineD3DDeviceImpl
*device
= context
->swapchain
->device
;
345 context_bind_fbo(context
, GL_FRAMEBUFFER
, &entry
->id
);
346 context_clean_fbo_attachments(gl_info
);
348 memcpy(entry
->render_targets
, device
->render_targets
, gl_info
->limits
.buffers
* sizeof(*entry
->render_targets
));
349 entry
->depth_stencil
= device
->stencilBufferTarget
;
350 entry
->attached
= FALSE
;
353 /* GL locking is done by the caller */
354 static void context_destroy_fbo_entry(struct wined3d_context
*context
, struct fbo_entry
*entry
)
358 TRACE("Destroy FBO %d\n", entry
->id
);
359 context_destroy_fbo(context
, &entry
->id
);
361 --context
->fbo_entry_count
;
362 list_remove(&entry
->entry
);
363 HeapFree(GetProcessHeap(), 0, entry
->render_targets
);
364 HeapFree(GetProcessHeap(), 0, entry
);
368 /* GL locking is done by the caller */
369 static struct fbo_entry
*context_find_fbo_entry(struct wined3d_context
*context
)
371 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
372 IWineD3DDeviceImpl
*device
= context
->swapchain
->device
;
373 struct fbo_entry
*entry
;
375 LIST_FOR_EACH_ENTRY(entry
, &context
->fbo_list
, struct fbo_entry
, entry
)
377 if (!memcmp(entry
->render_targets
,
378 device
->render_targets
, gl_info
->limits
.buffers
* sizeof(*entry
->render_targets
))
379 && entry
->depth_stencil
== device
->stencilBufferTarget
)
381 list_remove(&entry
->entry
);
382 list_add_head(&context
->fbo_list
, &entry
->entry
);
387 if (context
->fbo_entry_count
< WINED3D_MAX_FBO_ENTRIES
)
389 entry
= context_create_fbo_entry(context
);
390 list_add_head(&context
->fbo_list
, &entry
->entry
);
391 ++context
->fbo_entry_count
;
395 entry
= LIST_ENTRY(list_tail(&context
->fbo_list
), struct fbo_entry
, entry
);
396 context_reuse_fbo_entry(context
, entry
);
397 list_remove(&entry
->entry
);
398 list_add_head(&context
->fbo_list
, &entry
->entry
);
404 /* GL locking is done by the caller */
405 static void context_apply_fbo_entry(struct wined3d_context
*context
, struct fbo_entry
*entry
)
407 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
408 IWineD3DDeviceImpl
*device
= context
->swapchain
->device
;
411 context_bind_fbo(context
, GL_FRAMEBUFFER
, &entry
->id
);
413 if (!entry
->attached
)
415 /* Apply render targets */
416 for (i
= 0; i
< gl_info
->limits
.buffers
; ++i
)
418 IWineD3DSurface
*render_target
= device
->render_targets
[i
];
419 context_attach_surface_fbo(context
, GL_FRAMEBUFFER
, i
, render_target
);
422 /* Apply depth targets */
423 if (device
->stencilBufferTarget
)
425 unsigned int w
= ((IWineD3DSurfaceImpl
*)device
->render_targets
[0])->pow2Width
;
426 unsigned int h
= ((IWineD3DSurfaceImpl
*)device
->render_targets
[0])->pow2Height
;
428 surface_set_compatible_renderbuffer(device
->stencilBufferTarget
, w
, h
);
430 context_attach_depth_stencil_fbo(context
, GL_FRAMEBUFFER
, device
->stencilBufferTarget
, TRUE
);
432 entry
->attached
= TRUE
;
436 for (i
= 0; i
< gl_info
->limits
.buffers
; ++i
)
438 if (device
->render_targets
[i
])
439 context_apply_attachment_filter_states(device
->render_targets
[i
]);
441 if (device
->stencilBufferTarget
)
442 context_apply_attachment_filter_states(device
->stencilBufferTarget
);
445 for (i
= 0; i
< gl_info
->limits
.buffers
; ++i
)
447 if (device
->render_targets
[i
])
448 device
->draw_buffers
[i
] = GL_COLOR_ATTACHMENT0
+ i
;
450 device
->draw_buffers
[i
] = GL_NONE
;
454 /* GL locking is done by the caller */
455 static void context_apply_fbo_state(struct wined3d_context
*context
)
457 struct fbo_entry
*entry
, *entry2
;
459 LIST_FOR_EACH_ENTRY_SAFE(entry
, entry2
, &context
->fbo_destroy_list
, struct fbo_entry
, entry
)
461 context_destroy_fbo_entry(context
, entry
);
464 if (context
->rebind_fbo
)
466 context_bind_fbo(context
, GL_FRAMEBUFFER
, NULL
);
467 context
->rebind_fbo
= FALSE
;
470 if (context
->render_offscreen
)
472 context
->current_fbo
= context_find_fbo_entry(context
);
473 context_apply_fbo_entry(context
, context
->current_fbo
);
475 context
->current_fbo
= NULL
;
476 context_bind_fbo(context
, GL_FRAMEBUFFER
, NULL
);
479 context_check_fbo_status(context
);
482 /* Context activation is done by the caller. */
483 void context_alloc_occlusion_query(struct wined3d_context
*context
, struct wined3d_occlusion_query
*query
)
485 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
487 if (context
->free_occlusion_query_count
)
489 query
->id
= context
->free_occlusion_queries
[--context
->free_occlusion_query_count
];
493 if (gl_info
->supported
[ARB_OCCLUSION_QUERY
])
496 GL_EXTCALL(glGenQueriesARB(1, &query
->id
));
497 checkGLcall("glGenQueriesARB");
500 TRACE("Allocated occlusion query %u in context %p.\n", query
->id
, context
);
504 WARN("Occlusion queries not supported, not allocating query id.\n");
509 query
->context
= context
;
510 list_add_head(&context
->occlusion_queries
, &query
->entry
);
513 void context_free_occlusion_query(struct wined3d_occlusion_query
*query
)
515 struct wined3d_context
*context
= query
->context
;
517 list_remove(&query
->entry
);
518 query
->context
= NULL
;
520 if (context
->free_occlusion_query_count
>= context
->free_occlusion_query_size
- 1)
522 UINT new_size
= context
->free_occlusion_query_size
<< 1;
523 GLuint
*new_data
= HeapReAlloc(GetProcessHeap(), 0, context
->free_occlusion_queries
,
524 new_size
* sizeof(*context
->free_occlusion_queries
));
528 ERR("Failed to grow free list, leaking query %u in context %p.\n", query
->id
, context
);
532 context
->free_occlusion_query_size
= new_size
;
533 context
->free_occlusion_queries
= new_data
;
536 context
->free_occlusion_queries
[context
->free_occlusion_query_count
++] = query
->id
;
539 /* Context activation is done by the caller. */
540 void context_alloc_event_query(struct wined3d_context
*context
, struct wined3d_event_query
*query
)
542 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
544 if (context
->free_event_query_count
)
546 query
->object
= context
->free_event_queries
[--context
->free_event_query_count
];
550 if (gl_info
->supported
[ARB_SYNC
])
552 /* Using ARB_sync, not much to do here. */
553 query
->object
.sync
= NULL
;
554 TRACE("Allocated event query %p in context %p.\n", query
->object
.sync
, context
);
556 else if (gl_info
->supported
[APPLE_FENCE
])
559 GL_EXTCALL(glGenFencesAPPLE(1, &query
->object
.id
));
560 checkGLcall("glGenFencesAPPLE");
563 TRACE("Allocated event query %u in context %p.\n", query
->object
.id
, context
);
565 else if(gl_info
->supported
[NV_FENCE
])
568 GL_EXTCALL(glGenFencesNV(1, &query
->object
.id
));
569 checkGLcall("glGenFencesNV");
572 TRACE("Allocated event query %u in context %p.\n", query
->object
.id
, context
);
576 WARN("Event queries not supported, not allocating query id.\n");
577 query
->object
.id
= 0;
581 query
->context
= context
;
582 list_add_head(&context
->event_queries
, &query
->entry
);
585 void context_free_event_query(struct wined3d_event_query
*query
)
587 struct wined3d_context
*context
= query
->context
;
589 list_remove(&query
->entry
);
590 query
->context
= NULL
;
592 if (context
->free_event_query_count
>= context
->free_event_query_size
- 1)
594 UINT new_size
= context
->free_event_query_size
<< 1;
595 union wined3d_gl_query_object
*new_data
= HeapReAlloc(GetProcessHeap(), 0, context
->free_event_queries
,
596 new_size
* sizeof(*context
->free_event_queries
));
600 ERR("Failed to grow free list, leaking query %u in context %p.\n", query
->object
.id
, context
);
604 context
->free_event_query_size
= new_size
;
605 context
->free_event_queries
= new_data
;
608 context
->free_event_queries
[context
->free_event_query_count
++] = query
->object
;
611 void context_resource_released(IWineD3DDevice
*iface
, IWineD3DResource
*resource
, WINED3DRESOURCETYPE type
)
613 IWineD3DDeviceImpl
*This
= (IWineD3DDeviceImpl
*)iface
;
616 if (!This
->d3d_initialized
) return;
620 case WINED3DRTYPE_SURFACE
:
622 for (i
= 0; i
< This
->numContexts
; ++i
)
624 struct wined3d_context
*context
= This
->contexts
[i
];
625 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
626 struct fbo_entry
*entry
, *entry2
;
628 if (context
->current_rt
== (IWineD3DSurface
*)resource
) context
->current_rt
= NULL
;
630 LIST_FOR_EACH_ENTRY_SAFE(entry
, entry2
, &context
->fbo_list
, struct fbo_entry
, entry
)
634 if (entry
->depth_stencil
== (IWineD3DSurface
*)resource
)
636 list_remove(&entry
->entry
);
637 list_add_head(&context
->fbo_destroy_list
, &entry
->entry
);
641 for (j
= 0; j
< gl_info
->limits
.buffers
; ++j
)
643 if (entry
->render_targets
[j
] == (IWineD3DSurface
*)resource
)
645 list_remove(&entry
->entry
);
646 list_add_head(&context
->fbo_destroy_list
, &entry
->entry
);
661 void context_surface_update(struct wined3d_context
*context
, IWineD3DSurfaceImpl
*surface
)
663 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
664 struct fbo_entry
*entry
= context
->current_fbo
;
667 if (!entry
|| context
->rebind_fbo
) return;
669 for (i
= 0; i
< gl_info
->limits
.buffers
; ++i
)
671 if (surface
== (IWineD3DSurfaceImpl
*)entry
->render_targets
[i
])
673 TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface
, i
);
674 context
->rebind_fbo
= TRUE
;
679 if (surface
== (IWineD3DSurfaceImpl
*)entry
->depth_stencil
)
681 TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface
);
682 context
->rebind_fbo
= TRUE
;
686 static BOOL
context_set_pixel_format(const struct wined3d_gl_info
*gl_info
, HDC dc
, int format
)
688 int current
= GetPixelFormat(dc
);
690 if (current
== format
) return TRUE
;
694 if (!SetPixelFormat(dc
, format
, NULL
))
696 ERR("Failed to set pixel format %d on device context %p, last error %#x.\n",
697 format
, dc
, GetLastError());
703 /* By default WGL doesn't allow pixel format adjustments but we need it
704 * here. For this reason there's a Wine specific wglSetPixelFormat()
705 * which allows us to set the pixel format multiple times. Only use it
706 * when really needed. */
707 if (gl_info
->supported
[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH
])
709 if (!GL_EXTCALL(wglSetPixelFormatWINE(dc
, format
, NULL
)))
711 ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
718 /* OpenGL doesn't allow pixel format adjustments. Print an error and
719 * continue using the old format. There's a big chance that the old
720 * format works although with a performance hit and perhaps rendering
722 ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
723 format
, dc
, current
);
727 static void context_update_window(struct wined3d_context
*context
)
729 TRACE("Updating context %p window from %p to %p.\n",
730 context
, context
->win_handle
, context
->swapchain
->win_handle
);
734 if (!ReleaseDC(context
->win_handle
, context
->hdc
))
736 ERR("Failed to release device context %p, last error %#x.\n",
737 context
->hdc
, GetLastError());
740 else context
->valid
= 1;
742 context
->win_handle
= context
->swapchain
->win_handle
;
744 if (!(context
->hdc
= GetDC(context
->win_handle
)))
746 ERR("Failed to get a device context for window %p.\n", context
->win_handle
);
750 if (!context_set_pixel_format(context
->gl_info
, context
->hdc
, context
->pixel_format
))
752 ERR("Failed to set pixel format %d on device context %p.\n",
753 context
->pixel_format
, context
->hdc
);
757 if (!pwglMakeCurrent(context
->hdc
, context
->glCtx
))
759 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
760 context
->glCtx
, context
->hdc
, GetLastError());
770 static void context_validate(struct wined3d_context
*context
)
772 HWND wnd
= WindowFromDC(context
->hdc
);
774 if (wnd
!= context
->win_handle
)
776 WARN("DC %p belongs to window %p instead of %p.\n",
777 context
->hdc
, wnd
, context
->win_handle
);
781 if (context
->win_handle
!= context
->swapchain
->win_handle
)
782 context_update_window(context
);
785 static void context_destroy_gl_resources(struct wined3d_context
*context
)
787 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
788 struct wined3d_occlusion_query
*occlusion_query
;
789 struct wined3d_event_query
*event_query
;
790 struct fbo_entry
*entry
, *entry2
;
795 restore_ctx
= pwglGetCurrentContext();
796 restore_dc
= pwglGetCurrentDC();
798 context_validate(context
);
799 if (context
->valid
&& restore_ctx
!= context
->glCtx
) pwglMakeCurrent(context
->hdc
, context
->glCtx
);
800 else restore_ctx
= NULL
;
804 LIST_FOR_EACH_ENTRY(occlusion_query
, &context
->occlusion_queries
, struct wined3d_occlusion_query
, entry
)
806 if (context
->valid
&& gl_info
->supported
[ARB_OCCLUSION_QUERY
])
807 GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query
->id
));
808 occlusion_query
->context
= NULL
;
811 LIST_FOR_EACH_ENTRY(event_query
, &context
->event_queries
, struct wined3d_event_query
, entry
)
815 if (gl_info
->supported
[ARB_SYNC
])
817 if (event_query
->object
.sync
) GL_EXTCALL(glDeleteSync(event_query
->object
.sync
));
819 else if (gl_info
->supported
[APPLE_FENCE
]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query
->object
.id
));
820 else if (gl_info
->supported
[NV_FENCE
]) GL_EXTCALL(glDeleteFencesNV(1, &event_query
->object
.id
));
822 event_query
->context
= NULL
;
825 LIST_FOR_EACH_ENTRY_SAFE(entry
, entry2
, &context
->fbo_destroy_list
, struct fbo_entry
, entry
)
827 if (!context
->valid
) entry
->id
= 0;
828 context_destroy_fbo_entry(context
, entry
);
831 LIST_FOR_EACH_ENTRY_SAFE(entry
, entry2
, &context
->fbo_list
, struct fbo_entry
, entry
)
833 if (!context
->valid
) entry
->id
= 0;
834 context_destroy_fbo_entry(context
, entry
);
839 if (context
->src_fbo
)
841 TRACE("Destroy src FBO %d\n", context
->src_fbo
);
842 context_destroy_fbo(context
, &context
->src_fbo
);
844 if (context
->dst_fbo
)
846 TRACE("Destroy dst FBO %d\n", context
->dst_fbo
);
847 context_destroy_fbo(context
, &context
->dst_fbo
);
849 if (context
->dummy_arbfp_prog
)
851 GL_EXTCALL(glDeleteProgramsARB(1, &context
->dummy_arbfp_prog
));
854 if (gl_info
->supported
[ARB_OCCLUSION_QUERY
])
855 GL_EXTCALL(glDeleteQueriesARB(context
->free_occlusion_query_count
, context
->free_occlusion_queries
));
857 if (gl_info
->supported
[ARB_SYNC
])
859 if (event_query
->object
.sync
) GL_EXTCALL(glDeleteSync(event_query
->object
.sync
));
861 else if (gl_info
->supported
[APPLE_FENCE
])
863 for (i
= 0; i
< context
->free_event_query_count
; ++i
)
865 GL_EXTCALL(glDeleteFencesAPPLE(1, &context
->free_event_queries
[i
].id
));
868 else if (gl_info
->supported
[NV_FENCE
])
870 for (i
= 0; i
< context
->free_event_query_count
; ++i
)
872 GL_EXTCALL(glDeleteFencesNV(1, &context
->free_event_queries
[i
].id
));
876 checkGLcall("context cleanup");
881 HeapFree(GetProcessHeap(), 0, context
->free_occlusion_queries
);
882 HeapFree(GetProcessHeap(), 0, context
->free_event_queries
);
886 if (!pwglMakeCurrent(restore_dc
, restore_ctx
))
888 DWORD err
= GetLastError();
889 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
890 restore_ctx
, restore_dc
, err
);
893 else if (pwglGetCurrentContext() && !pwglMakeCurrent(NULL
, NULL
))
895 ERR("Failed to disable GL context.\n");
898 ReleaseDC(context
->win_handle
, context
->hdc
);
900 if (!pwglDeleteContext(context
->glCtx
))
902 DWORD err
= GetLastError();
903 ERR("wglDeleteContext(%p) failed, last error %#x.\n", context
->glCtx
, err
);
907 DWORD
context_get_tls_idx(void)
909 return wined3d_context_tls_idx
;
912 void context_set_tls_idx(DWORD idx
)
914 wined3d_context_tls_idx
= idx
;
917 struct wined3d_context
*context_get_current(void)
919 return TlsGetValue(wined3d_context_tls_idx
);
922 BOOL
context_set_current(struct wined3d_context
*ctx
)
924 struct wined3d_context
*old
= context_get_current();
928 TRACE("Already using D3D context %p.\n", ctx
);
936 TRACE("Switching away from destroyed context %p.\n", old
);
937 context_destroy_gl_resources(old
);
938 HeapFree(GetProcessHeap(), 0, old
);
948 TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx
, ctx
->glCtx
, ctx
->hdc
);
949 if (!pwglMakeCurrent(ctx
->hdc
, ctx
->glCtx
))
951 DWORD err
= GetLastError();
952 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
953 ctx
->glCtx
, ctx
->hdc
, err
);
954 TlsSetValue(wined3d_context_tls_idx
, NULL
);
959 else if(pwglGetCurrentContext())
961 TRACE("Clearing current D3D context.\n");
962 if (!pwglMakeCurrent(NULL
, NULL
))
964 DWORD err
= GetLastError();
965 ERR("Failed to clear current GL context, last error %#x.\n", err
);
966 TlsSetValue(wined3d_context_tls_idx
, NULL
);
971 return TlsSetValue(wined3d_context_tls_idx
, ctx
);
974 void context_release(struct wined3d_context
*context
)
976 TRACE("Releasing context %p, level %u.\n", context
, context
->level
);
981 WARN("Context %p is not active.\n", context
);
982 else if (context
!= context_get_current())
983 WARN("Context %p is not the current context.\n", context
);
986 if (!--context
->level
&& context
->restore_ctx
)
988 TRACE("Restoring GL context %p on device context %p.\n", context
->restore_ctx
, context
->restore_dc
);
989 if (!pwglMakeCurrent(context
->restore_dc
, context
->restore_ctx
))
991 DWORD err
= GetLastError();
992 ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
993 context
->restore_ctx
, context
->restore_dc
, err
);
995 context
->restore_ctx
= NULL
;
996 context
->restore_dc
= NULL
;
1000 static void context_enter(struct wined3d_context
*context
)
1002 TRACE("Entering context %p, level %u.\n", context
, context
->level
+ 1);
1004 if (!context
->level
++)
1006 const struct wined3d_context
*current_context
= context_get_current();
1007 HGLRC current_gl
= pwglGetCurrentContext();
1009 if (current_gl
&& (!current_context
|| current_context
->glCtx
!= current_gl
))
1011 TRACE("Another GL context (%p on device context %p) is already current.\n",
1012 current_gl
, pwglGetCurrentDC());
1013 context
->restore_ctx
= current_gl
;
1014 context
->restore_dc
= pwglGetCurrentDC();
1019 /*****************************************************************************
1020 * Context_MarkStateDirty
1022 * Marks a state in a context dirty. Only one context, opposed to
1023 * IWineD3DDeviceImpl_MarkStateDirty, which marks the state dirty in all
1027 * context: Context to mark the state dirty in
1028 * state: State to mark dirty
1029 * StateTable: Pointer to the state table in use(for state grouping)
1031 *****************************************************************************/
1032 static void Context_MarkStateDirty(struct wined3d_context
*context
, DWORD state
, const struct StateEntry
*StateTable
)
1034 DWORD rep
= StateTable
[state
].representative
;
1038 if (isStateDirty(context
, rep
)) return;
1040 context
->dirtyArray
[context
->numDirtyEntries
++] = rep
;
1041 idx
= rep
/ (sizeof(*context
->isStateDirty
) * CHAR_BIT
);
1042 shift
= rep
& ((sizeof(*context
->isStateDirty
) * CHAR_BIT
) - 1);
1043 context
->isStateDirty
[idx
] |= (1 << shift
);
1046 /* This function takes care of WineD3D pixel format selection. */
1047 static int WineD3D_ChoosePixelFormat(IWineD3DDeviceImpl
*This
, HDC hdc
,
1048 const struct wined3d_format_desc
*color_format_desc
, const struct wined3d_format_desc
*ds_format_desc
,
1049 BOOL auxBuffers
, int numSamples
, BOOL findCompatible
)
1052 unsigned int matchtry
;
1053 short redBits
, greenBits
, blueBits
, alphaBits
, colorBits
;
1054 short depthBits
=0, stencilBits
=0;
1061 /* First, try without alpha match buffers. MacOS supports aux buffers only
1062 * on A8R8G8B8, and we prefer better offscreen rendering over an alpha match.
1063 * Then try without aux buffers - this is the most common cause for not
1064 * finding a pixel format. Also some drivers(the open source ones)
1065 * only offer 32 bit ARB pixel formats. First try without an exact alpha
1066 * match, then try without an exact alpha and color match.
1068 { TRUE
, TRUE
, TRUE
},
1069 { TRUE
, FALSE
, TRUE
},
1070 { FALSE
, TRUE
, TRUE
},
1071 { FALSE
, FALSE
, TRUE
},
1072 { TRUE
, FALSE
, FALSE
},
1073 { FALSE
, FALSE
, FALSE
},
1077 int nCfgs
= This
->adapter
->nCfgs
;
1079 TRACE("ColorFormat=%s, DepthStencilFormat=%s, auxBuffers=%d, numSamples=%d, findCompatible=%d\n",
1080 debug_d3dformat(color_format_desc
->format
), debug_d3dformat(ds_format_desc
->format
),
1081 auxBuffers
, numSamples
, findCompatible
);
1083 if (!getColorBits(color_format_desc
, &redBits
, &greenBits
, &blueBits
, &alphaBits
, &colorBits
))
1085 ERR("Unable to get color bits for format %s (%#x)!\n",
1086 debug_d3dformat(color_format_desc
->format
), color_format_desc
->format
);
1090 /* In WGL both color, depth and stencil are features of a pixel format. In case of D3D they are separate.
1091 * You are able to add a depth + stencil surface at a later stage when you need it.
1092 * In order to support this properly in WineD3D we need the ability to recreate the opengl context and
1093 * drawable when this is required. This is very tricky as we need to reapply ALL opengl states for the new
1094 * context, need torecreate shaders, textures and other resources.
1096 * The context manager already takes care of the state problem and for the other tasks code from Reset
1097 * can be used. These changes are way to risky during the 1.0 code freeze which is taking place right now.
1098 * Likely a lot of other new bugs will be exposed. For that reason request a depth stencil surface all the
1099 * time. It can cause a slight performance hit but fixes a lot of regressions. A fixme reminds of that this
1100 * issue needs to be fixed. */
1101 if (ds_format_desc
->format
!= WINED3DFMT_D24_UNORM_S8_UINT
)
1103 FIXME("Add OpenGL context recreation support to SetDepthStencilSurface\n");
1104 ds_format_desc
= getFormatDescEntry(WINED3DFMT_D24_UNORM_S8_UINT
, &This
->adapter
->gl_info
);
1107 getDepthStencilBits(ds_format_desc
, &depthBits
, &stencilBits
);
1109 for(matchtry
= 0; matchtry
< (sizeof(matches
) / sizeof(matches
[0])) && !iPixelFormat
; matchtry
++) {
1110 for(i
=0; i
<nCfgs
; i
++) {
1111 BOOL exactDepthMatch
= TRUE
;
1112 WineD3D_PixelFormat
*cfg
= &This
->adapter
->cfgs
[i
];
1114 /* For now only accept RGBA formats. Perhaps some day we will
1115 * allow floating point formats for pbuffers. */
1116 if(cfg
->iPixelType
!= WGL_TYPE_RGBA_ARB
)
1119 /* In window mode we need a window drawable format and double buffering. */
1120 if(!(cfg
->windowDrawable
&& cfg
->doubleBuffer
))
1123 /* We like to have aux buffers in backbuffer mode */
1124 if(auxBuffers
&& !cfg
->auxBuffers
&& matches
[matchtry
].require_aux
)
1127 if(matches
[matchtry
].exact_color
) {
1128 if(cfg
->redSize
!= redBits
)
1130 if(cfg
->greenSize
!= greenBits
)
1132 if(cfg
->blueSize
!= blueBits
)
1135 if(cfg
->redSize
< redBits
)
1137 if(cfg
->greenSize
< greenBits
)
1139 if(cfg
->blueSize
< blueBits
)
1142 if(matches
[matchtry
].exact_alpha
) {
1143 if(cfg
->alphaSize
!= alphaBits
)
1146 if(cfg
->alphaSize
< alphaBits
)
1150 /* We try to locate a format which matches our requirements exactly. In case of
1151 * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1152 if(cfg
->depthSize
< depthBits
)
1154 else if(cfg
->depthSize
> depthBits
)
1155 exactDepthMatch
= FALSE
;
1157 /* In all cases make sure the number of stencil bits matches our requirements
1158 * even when we don't need stencil because it could affect performance EXCEPT
1159 * on cards which don't offer depth formats without stencil like the i915 drivers
1161 if(stencilBits
!= cfg
->stencilSize
&& !(This
->adapter
->brokenStencil
&& stencilBits
<= cfg
->stencilSize
))
1164 /* Check multisampling support */
1165 if(cfg
->numSamples
!= numSamples
)
1168 /* When we have passed all the checks then we have found a format which matches our
1169 * requirements. Note that we only check for a limit number of capabilities right now,
1170 * so there can easily be a dozen of pixel formats which appear to be the 'same' but
1171 * can still differ in things like multisampling, stereo, SRGB and other flags.
1174 /* Exit the loop as we have found a format :) */
1175 if(exactDepthMatch
) {
1176 iPixelFormat
= cfg
->iPixelFormat
;
1178 } else if(!iPixelFormat
) {
1179 /* In the end we might end up with a format which doesn't exactly match our depth
1180 * requirements. Accept the first format we found because formats with higher iPixelFormat
1181 * values tend to have more extended capabilities (e.g. multisampling) which we don't need. */
1182 iPixelFormat
= cfg
->iPixelFormat
;
1187 /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1188 if(!iPixelFormat
&& !findCompatible
) {
1189 ERR("Can't find a suitable iPixelFormat\n");
1191 } else if(!iPixelFormat
) {
1192 PIXELFORMATDESCRIPTOR pfd
;
1194 TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1195 /* PixelFormat selection */
1196 ZeroMemory(&pfd
, sizeof(pfd
));
1197 pfd
.nSize
= sizeof(pfd
);
1199 pfd
.dwFlags
= PFD_SUPPORT_OPENGL
| PFD_DOUBLEBUFFER
| PFD_DRAW_TO_WINDOW
;/*PFD_GENERIC_ACCELERATED*/
1200 pfd
.iPixelType
= PFD_TYPE_RGBA
;
1201 pfd
.cAlphaBits
= alphaBits
;
1202 pfd
.cColorBits
= colorBits
;
1203 pfd
.cDepthBits
= depthBits
;
1204 pfd
.cStencilBits
= stencilBits
;
1205 pfd
.iLayerType
= PFD_MAIN_PLANE
;
1207 iPixelFormat
= ChoosePixelFormat(hdc
, &pfd
);
1209 /* If this happens something is very wrong as ChoosePixelFormat barely fails */
1210 ERR("Can't find a suitable iPixelFormat\n");
1215 TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1216 iPixelFormat
, debug_d3dformat(color_format_desc
->format
), debug_d3dformat(ds_format_desc
->format
));
1217 return iPixelFormat
;
1220 /*****************************************************************************
1223 * Creates a new context.
1226 * This: Device to activate the context for
1227 * target: Surface this context will render to
1228 * win_handle: handle to the window which we are drawing to
1229 * pPresentParameters: contains the pixelformats to use for onscreen rendering
1231 *****************************************************************************/
1232 struct wined3d_context
*context_create(IWineD3DSwapChainImpl
*swapchain
, IWineD3DSurfaceImpl
*target
)
1234 IWineD3DDeviceImpl
*device
= swapchain
->device
;
1235 const struct wined3d_gl_info
*gl_info
= &device
->adapter
->gl_info
;
1236 const struct wined3d_format_desc
*color_format_desc
;
1237 const struct wined3d_format_desc
*ds_format_desc
;
1238 struct wined3d_context
*ret
;
1239 PIXELFORMATDESCRIPTOR pfd
;
1240 BOOL auxBuffers
= FALSE
;
1248 TRACE("swapchain %p, target %p, window %p.\n", swapchain
, target
, swapchain
->win_handle
);
1250 ret
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*ret
));
1253 ERR("Failed to allocate context memory.\n");
1257 if (!(hdc
= GetDC(swapchain
->win_handle
)))
1259 ERR("Failed to retrieve a device context.\n");
1263 ds_format_desc
= getFormatDescEntry(WINED3DFMT_UNKNOWN
, gl_info
);
1264 color_format_desc
= target
->resource
.format_desc
;
1266 /* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1267 * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1268 if (wined3d_settings
.offscreen_rendering_mode
== ORM_BACKBUFFER
)
1272 if (color_format_desc
->format
== WINED3DFMT_B4G4R4X4_UNORM
)
1273 color_format_desc
= getFormatDescEntry(WINED3DFMT_B4G4R4A4_UNORM
, gl_info
);
1274 else if (color_format_desc
->format
== WINED3DFMT_B8G8R8X8_UNORM
)
1275 color_format_desc
= getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM
, gl_info
);
1278 /* DirectDraw supports 8bit paletted render targets and these are used by
1279 * old games like Starcraft and C&C. Most modern hardware doesn't support
1280 * 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1281 * conversion (ab)uses the alpha component for storing the palette index.
1282 * For this reason we require a format with 8bit alpha, so request
1284 if (color_format_desc
->format
== WINED3DFMT_P8_UINT
)
1285 color_format_desc
= getFormatDescEntry(WINED3DFMT_B8G8R8A8_UNORM
, gl_info
);
1287 /* Retrieve the depth stencil format from the present parameters.
1288 * The choice of the proper format can give a nice performance boost
1289 * in case of GPU limited programs. */
1290 if (swapchain
->presentParms
.EnableAutoDepthStencil
)
1292 TRACE("Auto depth stencil enabled, using format %s.\n",
1293 debug_d3dformat(swapchain
->presentParms
.AutoDepthStencilFormat
));
1294 ds_format_desc
= getFormatDescEntry(swapchain
->presentParms
.AutoDepthStencilFormat
, gl_info
);
1297 /* D3D only allows multisampling when SwapEffect is set to WINED3DSWAPEFFECT_DISCARD. */
1298 if (swapchain
->presentParms
.MultiSampleType
&& (swapchain
->presentParms
.SwapEffect
== WINED3DSWAPEFFECT_DISCARD
))
1300 if (!gl_info
->supported
[ARB_MULTISAMPLE
])
1301 WARN("The application is requesting multisampling without support.\n");
1304 TRACE("Requesting multisample type %#x.\n", swapchain
->presentParms
.MultiSampleType
);
1305 numSamples
= swapchain
->presentParms
.MultiSampleType
;
1309 /* Try to find a pixel format which matches our requirements. */
1310 pixel_format
= WineD3D_ChoosePixelFormat(device
, hdc
, color_format_desc
, ds_format_desc
,
1311 auxBuffers
, numSamples
, FALSE
/* findCompatible */);
1313 /* Try to locate a compatible format if we weren't able to find anything. */
1316 TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1317 pixel_format
= WineD3D_ChoosePixelFormat(device
, hdc
, color_format_desc
, ds_format_desc
,
1318 auxBuffers
, 0 /* numSamples */, TRUE
/* findCompatible */);
1321 /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1324 ERR("Can't find a suitable pixel format.\n");
1328 DescribePixelFormat(hdc
, pixel_format
, sizeof(pfd
), &pfd
);
1329 if (!context_set_pixel_format(gl_info
, hdc
, pixel_format
))
1331 ERR("Failed to set pixel format %d on device context %p.\n", pixel_format
, hdc
);
1335 ctx
= pwglCreateContext(hdc
);
1336 if (device
->numContexts
)
1338 if (!pwglShareLists(device
->contexts
[0]->glCtx
, ctx
))
1340 DWORD err
= GetLastError();
1341 ERR("wglShareLists(%p, %p) failed, last error %#x.\n",
1342 device
->contexts
[0]->glCtx
, ctx
, err
);
1347 ERR("Failed to create a WGL context\n");
1351 if (!device_context_add(device
, ret
))
1353 ERR("Failed to add the newly created context to the context list\n");
1354 if (!pwglDeleteContext(ctx
))
1356 DWORD err
= GetLastError();
1357 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx
, err
);
1362 ret
->gl_info
= gl_info
;
1364 /* Mark all states dirty to force a proper initialization of the states
1365 * on the first use of the context. */
1366 for (state
= 0; state
<= STATE_HIGHEST
; ++state
)
1368 if (device
->StateTable
[state
].representative
)
1369 Context_MarkStateDirty(ret
, state
, device
->StateTable
);
1372 ret
->swapchain
= swapchain
;
1373 ret
->current_rt
= (IWineD3DSurface
*)target
;
1374 ret
->tid
= GetCurrentThreadId();
1376 ret
->render_offscreen
= surface_is_offscreen((IWineD3DSurface
*) target
);
1377 ret
->draw_buffer_dirty
= TRUE
;
1381 ret
->win_handle
= swapchain
->win_handle
;
1383 ret
->pixel_format
= pixel_format
;
1385 if (device
->shader_backend
->shader_dirtifyable_constants((IWineD3DDevice
*)device
))
1387 /* Create the dirty constants array and initialize them to dirty */
1388 ret
->vshader_const_dirty
= HeapAlloc(GetProcessHeap(), 0,
1389 sizeof(*ret
->vshader_const_dirty
) * device
->d3d_vshader_constantF
);
1390 ret
->pshader_const_dirty
= HeapAlloc(GetProcessHeap(), 0,
1391 sizeof(*ret
->pshader_const_dirty
) * device
->d3d_pshader_constantF
);
1392 memset(ret
->vshader_const_dirty
, 1,
1393 sizeof(*ret
->vshader_const_dirty
) * device
->d3d_vshader_constantF
);
1394 memset(ret
->pshader_const_dirty
, 1,
1395 sizeof(*ret
->pshader_const_dirty
) * device
->d3d_pshader_constantF
);
1398 ret
->free_occlusion_query_size
= 4;
1399 ret
->free_occlusion_queries
= HeapAlloc(GetProcessHeap(), 0,
1400 ret
->free_occlusion_query_size
* sizeof(*ret
->free_occlusion_queries
));
1401 if (!ret
->free_occlusion_queries
) goto out
;
1403 list_init(&ret
->occlusion_queries
);
1405 ret
->free_event_query_size
= 4;
1406 ret
->free_event_queries
= HeapAlloc(GetProcessHeap(), 0,
1407 ret
->free_event_query_size
* sizeof(*ret
->free_event_queries
));
1408 if (!ret
->free_event_queries
) goto out
;
1410 list_init(&ret
->event_queries
);
1412 TRACE("Successfully created new context %p\n", ret
);
1414 list_init(&ret
->fbo_list
);
1415 list_init(&ret
->fbo_destroy_list
);
1419 /* Set up the context defaults */
1420 if (!context_set_current(ret
))
1422 ERR("Cannot activate context to set up defaults\n");
1423 context_release(ret
);
1429 glGetIntegerv(GL_AUX_BUFFERS
, &ret
->aux_buffers
);
1431 TRACE("Setting up the screen\n");
1432 /* Clear the screen */
1433 glClearColor(1.0f
, 0.0f
, 0.0f
, 0.0f
);
1434 checkGLcall("glClearColor");
1437 glClearStencil(0xffff);
1439 checkGLcall("glClear");
1441 glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER
, GL_TRUE
);
1442 checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1444 glTexEnvf(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, GL_COMBINE_EXT
);
1445 checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1447 glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL
, GL_SEPARATE_SPECULAR_COLOR
);
1448 checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1450 glPixelStorei(GL_PACK_ALIGNMENT
, device
->surface_alignment
);
1451 checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1452 glPixelStorei(GL_UNPACK_ALIGNMENT
, device
->surface_alignment
);
1453 checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);");
1455 if (gl_info
->supported
[APPLE_CLIENT_STORAGE
])
1457 /* Most textures will use client storage if supported. Exceptions are non-native power of 2 textures
1458 * and textures in DIB sections(due to the memory protection).
1460 glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE
, GL_TRUE
);
1461 checkGLcall("glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE)");
1463 if (gl_info
->supported
[ARB_VERTEX_BLEND
])
1465 /* Direct3D always uses n-1 weights for n world matrices and uses 1 - sum for the last one
1466 * this is equal to GL_WEIGHT_SUM_UNITY_ARB. Enabling it doesn't do anything unless
1467 * GL_VERTEX_BLEND_ARB isn't enabled too
1469 glEnable(GL_WEIGHT_SUM_UNITY_ARB
);
1470 checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1472 if (gl_info
->supported
[NV_TEXTURE_SHADER2
])
1474 /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1475 * the previous texture where to source the offset from is always unit - 1.
1477 for (s
= 1; s
< gl_info
->limits
.textures
; ++s
)
1479 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB
+ s
));
1480 glTexEnvi(GL_TEXTURE_SHADER_NV
, GL_PREVIOUS_TEXTURE_INPUT_NV
, GL_TEXTURE0_ARB
+ s
- 1);
1481 checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1484 if (gl_info
->supported
[ARB_FRAGMENT_PROGRAM
])
1486 /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1487 * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1488 * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1489 * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1492 * So make sure a program is assigned to each context. The first real ARBFP use will set a different
1493 * program and the dummy program is destroyed when the context is destroyed.
1495 const char *dummy_program
=
1497 "MOV result.color, fragment.color.primary;\n"
1499 GL_EXTCALL(glGenProgramsARB(1, &ret
->dummy_arbfp_prog
));
1500 GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB
, ret
->dummy_arbfp_prog
));
1501 GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB
, GL_PROGRAM_FORMAT_ASCII_ARB
, strlen(dummy_program
), dummy_program
));
1504 for (s
= 0; s
< gl_info
->limits
.point_sprite_units
; ++s
)
1506 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB
+ s
));
1507 glTexEnvi(GL_POINT_SPRITE_ARB
, GL_COORD_REPLACE_ARB
, GL_TRUE
);
1508 checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1511 if (gl_info
->supported
[ARB_PROVOKING_VERTEX
])
1513 GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION
));
1515 else if (gl_info
->supported
[EXT_PROVOKING_VERTEX
])
1517 GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT
));
1522 device
->frag_pipe
->enable_extension((IWineD3DDevice
*)device
, TRUE
);
1524 TRACE("Created context %p.\n", ret
);
1529 HeapFree(GetProcessHeap(), 0, ret
->free_event_queries
);
1530 HeapFree(GetProcessHeap(), 0, ret
->free_occlusion_queries
);
1531 HeapFree(GetProcessHeap(), 0, ret
->pshader_const_dirty
);
1532 HeapFree(GetProcessHeap(), 0, ret
->vshader_const_dirty
);
1533 HeapFree(GetProcessHeap(), 0, ret
);
1537 /*****************************************************************************
1540 * Destroys a wined3d context
1543 * This: Device to activate the context for
1544 * context: Context to destroy
1546 *****************************************************************************/
1547 void context_destroy(IWineD3DDeviceImpl
*This
, struct wined3d_context
*context
)
1551 TRACE("Destroying ctx %p\n", context
);
1553 if (context
->tid
== GetCurrentThreadId() || !context
->current
)
1555 context_destroy_gl_resources(context
);
1556 TlsSetValue(wined3d_context_tls_idx
, NULL
);
1561 context
->destroyed
= 1;
1565 HeapFree(GetProcessHeap(), 0, context
->vshader_const_dirty
);
1566 HeapFree(GetProcessHeap(), 0, context
->pshader_const_dirty
);
1567 device_context_remove(This
, context
);
1568 if (destroy
) HeapFree(GetProcessHeap(), 0, context
);
1571 /* GL locking is done by the caller */
1572 static inline void set_blit_dimension(UINT width
, UINT height
) {
1573 glMatrixMode(GL_PROJECTION
);
1574 checkGLcall("glMatrixMode(GL_PROJECTION)");
1576 checkGLcall("glLoadIdentity()");
1577 glOrtho(0, width
, height
, 0, 0.0, -1.0);
1578 checkGLcall("glOrtho");
1579 glViewport(0, 0, width
, height
);
1580 checkGLcall("glViewport");
1583 /*****************************************************************************
1586 * Sets up a context for DirectDraw blitting.
1587 * All texture units are disabled, texture unit 0 is set as current unit
1588 * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
1589 * color writing enabled for all channels
1590 * register combiners disabled, shaders disabled
1591 * world matrix is set to identity, texture matrix 0 too
1592 * projection matrix is setup for drawing screen coordinates
1595 * This: Device to activate the context for
1596 * context: Context to setup
1598 *****************************************************************************/
1599 /* Context activation is done by the caller. */
1600 static void SetupForBlit(IWineD3DDeviceImpl
*This
, struct wined3d_context
*context
)
1603 const struct StateEntry
*StateTable
= This
->StateTable
;
1604 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
1605 UINT width
= ((IWineD3DSurfaceImpl
*)context
->current_rt
)->currentDesc
.Width
;
1606 UINT height
= ((IWineD3DSurfaceImpl
*)context
->current_rt
)->currentDesc
.Height
;
1609 TRACE("Setting up context %p for blitting\n", context
);
1610 if(context
->last_was_blit
) {
1611 if(context
->blit_w
!= width
|| context
->blit_h
!= height
) {
1613 set_blit_dimension(width
, height
);
1615 context
->blit_w
= width
; context
->blit_h
= height
;
1616 /* No need to dirtify here, the states are still dirtified because they weren't
1617 * applied since the last SetupForBlit call. Otherwise last_was_blit would not
1621 TRACE("Context is already set up for blitting, nothing to do\n");
1624 context
->last_was_blit
= TRUE
;
1626 /* TODO: Use a display list */
1628 /* Disable shaders */
1630 This
->shader_backend
->shader_select(context
, FALSE
, FALSE
);
1633 Context_MarkStateDirty(context
, STATE_VSHADER
, StateTable
);
1634 Context_MarkStateDirty(context
, STATE_PIXELSHADER
, StateTable
);
1636 /* Call ENTER_GL() once for all gl calls below. In theory we should not call
1637 * helper functions in between gl calls. This function is full of Context_MarkStateDirty
1638 * which can safely be called from here, we only lock once instead locking/unlocking
1639 * after each GL call.
1643 /* Disable all textures. The caller can then bind a texture it wants to blit
1646 * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
1647 * function texture unit. No need to care for higher samplers
1649 for (i
= gl_info
->limits
.textures
- 1; i
> 0 ; --i
)
1651 sampler
= This
->rev_tex_unit_map
[i
];
1652 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB
+ i
));
1653 checkGLcall("glActiveTextureARB");
1655 if (gl_info
->supported
[ARB_TEXTURE_CUBE_MAP
])
1657 glDisable(GL_TEXTURE_CUBE_MAP_ARB
);
1658 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1660 glDisable(GL_TEXTURE_3D
);
1661 checkGLcall("glDisable GL_TEXTURE_3D");
1662 if (gl_info
->supported
[ARB_TEXTURE_RECTANGLE
])
1664 glDisable(GL_TEXTURE_RECTANGLE_ARB
);
1665 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1667 glDisable(GL_TEXTURE_2D
);
1668 checkGLcall("glDisable GL_TEXTURE_2D");
1670 glTexEnvi(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, GL_REPLACE
);
1671 checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
1673 if (sampler
!= WINED3D_UNMAPPED_STAGE
)
1675 if (sampler
< MAX_TEXTURES
) {
1676 Context_MarkStateDirty(context
, STATE_TEXTURESTAGE(sampler
, WINED3DTSS_COLOROP
), StateTable
);
1678 Context_MarkStateDirty(context
, STATE_SAMPLER(sampler
), StateTable
);
1681 GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB
));
1682 checkGLcall("glActiveTextureARB");
1684 sampler
= This
->rev_tex_unit_map
[0];
1686 if (gl_info
->supported
[ARB_TEXTURE_CUBE_MAP
])
1688 glDisable(GL_TEXTURE_CUBE_MAP_ARB
);
1689 checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
1691 glDisable(GL_TEXTURE_3D
);
1692 checkGLcall("glDisable GL_TEXTURE_3D");
1693 if (gl_info
->supported
[ARB_TEXTURE_RECTANGLE
])
1695 glDisable(GL_TEXTURE_RECTANGLE_ARB
);
1696 checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
1698 glDisable(GL_TEXTURE_2D
);
1699 checkGLcall("glDisable GL_TEXTURE_2D");
1701 glTexEnvi(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, GL_REPLACE
);
1703 glMatrixMode(GL_TEXTURE
);
1704 checkGLcall("glMatrixMode(GL_TEXTURE)");
1706 checkGLcall("glLoadIdentity()");
1708 if (gl_info
->supported
[EXT_TEXTURE_LOD_BIAS
])
1710 glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT
,
1711 GL_TEXTURE_LOD_BIAS_EXT
,
1713 checkGLcall("glTexEnvi GL_TEXTURE_LOD_BIAS_EXT ...");
1716 if (sampler
!= WINED3D_UNMAPPED_STAGE
)
1718 if (sampler
< MAX_TEXTURES
) {
1719 Context_MarkStateDirty(context
, STATE_TRANSFORM(WINED3DTS_TEXTURE0
+ sampler
), StateTable
);
1720 Context_MarkStateDirty(context
, STATE_TEXTURESTAGE(sampler
, WINED3DTSS_COLOROP
), StateTable
);
1722 Context_MarkStateDirty(context
, STATE_SAMPLER(sampler
), StateTable
);
1725 /* Other misc states */
1726 glDisable(GL_ALPHA_TEST
);
1727 checkGLcall("glDisable(GL_ALPHA_TEST)");
1728 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_ALPHATESTENABLE
), StateTable
);
1729 glDisable(GL_LIGHTING
);
1730 checkGLcall("glDisable GL_LIGHTING");
1731 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_LIGHTING
), StateTable
);
1732 glDisable(GL_DEPTH_TEST
);
1733 checkGLcall("glDisable GL_DEPTH_TEST");
1734 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_ZENABLE
), StateTable
);
1735 glDisableWINE(GL_FOG
);
1736 checkGLcall("glDisable GL_FOG");
1737 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_FOGENABLE
), StateTable
);
1738 glDisable(GL_BLEND
);
1739 checkGLcall("glDisable GL_BLEND");
1740 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE
), StateTable
);
1741 glDisable(GL_CULL_FACE
);
1742 checkGLcall("glDisable GL_CULL_FACE");
1743 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_CULLMODE
), StateTable
);
1744 glDisable(GL_STENCIL_TEST
);
1745 checkGLcall("glDisable GL_STENCIL_TEST");
1746 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_STENCILENABLE
), StateTable
);
1747 glDisable(GL_SCISSOR_TEST
);
1748 checkGLcall("glDisable GL_SCISSOR_TEST");
1749 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE
), StateTable
);
1750 if (gl_info
->supported
[ARB_POINT_SPRITE
])
1752 glDisable(GL_POINT_SPRITE_ARB
);
1753 checkGLcall("glDisable GL_POINT_SPRITE_ARB");
1754 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_POINTSPRITEENABLE
), StateTable
);
1756 glColorMask(GL_TRUE
, GL_TRUE
,GL_TRUE
,GL_TRUE
);
1757 checkGLcall("glColorMask");
1758 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_COLORWRITEENABLE
), StateTable
);
1759 if (gl_info
->supported
[EXT_SECONDARY_COLOR
])
1761 glDisable(GL_COLOR_SUM_EXT
);
1762 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_SPECULARENABLE
), StateTable
);
1763 checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
1766 /* Setup transforms */
1767 glMatrixMode(GL_MODELVIEW
);
1768 checkGLcall("glMatrixMode(GL_MODELVIEW)");
1770 checkGLcall("glLoadIdentity()");
1771 Context_MarkStateDirty(context
, STATE_TRANSFORM(WINED3DTS_WORLDMATRIX(0)), StateTable
);
1773 context
->last_was_rhw
= TRUE
;
1774 Context_MarkStateDirty(context
, STATE_VDECL
, StateTable
); /* because of last_was_rhw = TRUE */
1776 glDisable(GL_CLIP_PLANE0
); checkGLcall("glDisable(clip plane 0)");
1777 glDisable(GL_CLIP_PLANE1
); checkGLcall("glDisable(clip plane 1)");
1778 glDisable(GL_CLIP_PLANE2
); checkGLcall("glDisable(clip plane 2)");
1779 glDisable(GL_CLIP_PLANE3
); checkGLcall("glDisable(clip plane 3)");
1780 glDisable(GL_CLIP_PLANE4
); checkGLcall("glDisable(clip plane 4)");
1781 glDisable(GL_CLIP_PLANE5
); checkGLcall("glDisable(clip plane 5)");
1782 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_CLIPPING
), StateTable
);
1784 set_blit_dimension(width
, height
);
1788 context
->blit_w
= width
; context
->blit_h
= height
;
1789 Context_MarkStateDirty(context
, STATE_VIEWPORT
, StateTable
);
1790 Context_MarkStateDirty(context
, STATE_TRANSFORM(WINED3DTS_PROJECTION
), StateTable
);
1793 This
->frag_pipe
->enable_extension((IWineD3DDevice
*) This
, FALSE
);
1796 /*****************************************************************************
1797 * findThreadContextForSwapChain
1799 * Searches a swapchain for all contexts and picks one for the thread tid.
1800 * If none can be found the swapchain is requested to create a new context
1802 *****************************************************************************/
1803 static struct wined3d_context
*findThreadContextForSwapChain(IWineD3DSwapChain
*swapchain
, DWORD tid
)
1807 for(i
= 0; i
< ((IWineD3DSwapChainImpl
*) swapchain
)->num_contexts
; i
++) {
1808 if(((IWineD3DSwapChainImpl
*) swapchain
)->context
[i
]->tid
== tid
) {
1809 return ((IWineD3DSwapChainImpl
*) swapchain
)->context
[i
];
1814 /* Create a new context for the thread */
1815 return swapchain_create_context_for_thread(swapchain
);
1818 /*****************************************************************************
1821 * Finds a context for the current render target and thread
1824 * target: Render target to find the context for
1825 * tid: Thread to activate the context for
1827 * Returns: The needed context
1829 *****************************************************************************/
1830 static struct wined3d_context
*FindContext(IWineD3DDeviceImpl
*This
, IWineD3DSurface
*target
)
1832 IWineD3DSwapChain
*swapchain
= NULL
;
1833 struct wined3d_context
*current_context
= context_get_current();
1834 const struct StateEntry
*StateTable
= This
->StateTable
;
1835 DWORD tid
= GetCurrentThreadId();
1836 struct wined3d_context
*context
;
1837 BOOL old_render_offscreen
;
1839 if (current_context
&& current_context
->destroyed
) current_context
= NULL
;
1844 && current_context
->current_rt
1845 && current_context
->swapchain
->device
== This
)
1847 target
= current_context
->current_rt
;
1851 IWineD3DSwapChainImpl
*swapchain
= (IWineD3DSwapChainImpl
*)This
->swapchains
[0];
1852 if (swapchain
->backBuffer
) target
= swapchain
->backBuffer
[0];
1853 else target
= swapchain
->frontBuffer
;
1857 if (current_context
&& current_context
->current_rt
== target
)
1859 context_validate(current_context
);
1860 return current_context
;
1863 if (SUCCEEDED(IWineD3DSurface_GetContainer(target
, &IID_IWineD3DSwapChain
, (void **)&swapchain
))) {
1864 TRACE("Rendering onscreen\n");
1866 context
= findThreadContextForSwapChain(swapchain
, tid
);
1868 old_render_offscreen
= context
->render_offscreen
;
1869 context
->render_offscreen
= surface_is_offscreen(target
);
1870 IWineD3DSwapChain_Release(swapchain
);
1874 TRACE("Rendering offscreen\n");
1876 /* Stay with the currently active context. */
1877 if (current_context
&& current_context
->swapchain
->device
== This
)
1879 context
= current_context
;
1883 /* This may happen if the app jumps straight into offscreen rendering
1884 * Start using the context of the primary swapchain. tid == 0 is no problem
1885 * for findThreadContextForSwapChain.
1887 * Can also happen on thread switches - in that case findThreadContextForSwapChain
1888 * is perfect to call. */
1889 context
= findThreadContextForSwapChain(This
->swapchains
[0], tid
);
1892 old_render_offscreen
= context
->render_offscreen
;
1893 context
->render_offscreen
= TRUE
;
1896 context_validate(context
);
1898 if (context
->render_offscreen
!= old_render_offscreen
)
1900 Context_MarkStateDirty(context
, STATE_TRANSFORM(WINED3DTS_PROJECTION
), StateTable
);
1901 Context_MarkStateDirty(context
, STATE_VDECL
, StateTable
);
1902 Context_MarkStateDirty(context
, STATE_VIEWPORT
, StateTable
);
1903 Context_MarkStateDirty(context
, STATE_SCISSORRECT
, StateTable
);
1904 Context_MarkStateDirty(context
, STATE_FRONTFACE
, StateTable
);
1907 /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
1908 * the alpha blend state changes with different render target formats. */
1909 if (!context
->current_rt
)
1911 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE
), StateTable
);
1915 const struct wined3d_format_desc
*old
= ((IWineD3DSurfaceImpl
*)context
->current_rt
)->resource
.format_desc
;
1916 const struct wined3d_format_desc
*new = ((IWineD3DSurfaceImpl
*)target
)->resource
.format_desc
;
1918 if (old
->format
!= new->format
)
1920 /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
1921 if ((old
->alpha_mask
&& !new->alpha_mask
) || (!old
->alpha_mask
&& new->alpha_mask
)
1922 || !(new->Flags
& WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING
))
1924 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE
), StateTable
);
1928 /* When switching away from an offscreen render target, and we're not
1929 * using FBOs, we have to read the drawable into the texture. This is
1930 * done via PreLoad (and SFLAG_INDRAWABLE set on the surface). There
1931 * are some things that need care though. PreLoad needs a GL context,
1932 * and FindContext is called before the context is activated. It also
1933 * has to be called with the old rendertarget active, otherwise a
1934 * wrong drawable is read. */
1935 if (wined3d_settings
.offscreen_rendering_mode
!= ORM_FBO
1936 && old_render_offscreen
&& context
->current_rt
!= target
)
1938 BOOL oldInDraw
= This
->isInDraw
;
1940 /* surface_internal_preload() requires a context to load the
1941 * texture, so it will call context_acquire(). Set isInDraw to true
1942 * to signal surface_internal_preload() that it has a context. */
1944 /* FIXME: This is just broken. There's no guarantee whatsoever
1945 * that the currently active context, if any, is appropriate for
1946 * reading back the render target. We should probably call
1947 * context_set_current(context) here and then rely on
1948 * context_acquire() doing the right thing. */
1949 This
->isInDraw
= TRUE
;
1951 /* Read the back buffer of the old drawable into the destination texture. */
1952 if (((IWineD3DSurfaceImpl
*)context
->current_rt
)->texture_name_srgb
)
1954 surface_internal_preload(context
->current_rt
, SRGB_BOTH
);
1958 surface_internal_preload(context
->current_rt
, SRGB_RGB
);
1961 IWineD3DSurface_ModifyLocation(context
->current_rt
, SFLAG_INDRAWABLE
, FALSE
);
1963 This
->isInDraw
= oldInDraw
;
1967 context
->draw_buffer_dirty
= TRUE
;
1968 context
->current_rt
= target
;
1973 /* Context activation is done by the caller. */
1974 static void context_apply_draw_buffer(struct wined3d_context
*context
, BOOL blit
)
1976 const struct wined3d_gl_info
*gl_info
= context
->gl_info
;
1977 IWineD3DSurface
*rt
= context
->current_rt
;
1978 IWineD3DDeviceImpl
*device
;
1980 device
= ((IWineD3DSurfaceImpl
*)rt
)->resource
.device
;
1981 if (!surface_is_offscreen(rt
))
1984 glDrawBuffer(surface_get_gl_buffer(rt
));
1985 checkGLcall("glDrawBuffers()");
1991 if (wined3d_settings
.offscreen_rendering_mode
== ORM_FBO
)
1995 if (gl_info
->supported
[ARB_DRAW_BUFFERS
])
1997 GL_EXTCALL(glDrawBuffersARB(gl_info
->limits
.buffers
, device
->draw_buffers
));
1998 checkGLcall("glDrawBuffers()");
2002 glDrawBuffer(device
->draw_buffers
[0]);
2003 checkGLcall("glDrawBuffer()");
2006 glDrawBuffer(GL_COLOR_ATTACHMENT0
);
2007 checkGLcall("glDrawBuffer()");
2012 glDrawBuffer(device
->offscreenBuffer
);
2013 checkGLcall("glDrawBuffer()");
2019 /* GL locking is done by the caller. */
2020 void context_set_draw_buffer(struct wined3d_context
*context
, GLenum buffer
)
2022 glDrawBuffer(buffer
);
2023 checkGLcall("glDrawBuffer()");
2024 context
->draw_buffer_dirty
= TRUE
;
2027 /* Context activation is done by the caller. */
2028 static void context_apply_state(struct wined3d_context
*context
, IWineD3DDeviceImpl
*device
, enum ContextUsage usage
)
2030 const struct StateEntry
*state_table
= device
->StateTable
;
2034 case CTXUSAGE_CLEAR
:
2035 case CTXUSAGE_DRAWPRIM
:
2036 if (wined3d_settings
.offscreen_rendering_mode
== ORM_FBO
) {
2038 context_apply_fbo_state(context
);
2041 if (context
->draw_buffer_dirty
) {
2042 context_apply_draw_buffer(context
, FALSE
);
2043 context
->draw_buffer_dirty
= FALSE
;
2048 if (wined3d_settings
.offscreen_rendering_mode
== ORM_FBO
) {
2049 if (context
->render_offscreen
)
2051 FIXME("Activating for CTXUSAGE_BLIT for an offscreen target with ORM_FBO. This should be avoided.\n");
2052 surface_internal_preload(context
->current_rt
, SRGB_RGB
);
2055 context_bind_fbo(context
, GL_FRAMEBUFFER
, &context
->dst_fbo
);
2056 context_attach_surface_fbo(context
, GL_FRAMEBUFFER
, 0, context
->current_rt
);
2057 context_attach_depth_stencil_fbo(context
, GL_FRAMEBUFFER
, NULL
, FALSE
);
2061 context_bind_fbo(context
, GL_FRAMEBUFFER
, NULL
);
2064 context
->draw_buffer_dirty
= TRUE
;
2066 if (context
->draw_buffer_dirty
) {
2067 context_apply_draw_buffer(context
, TRUE
);
2068 if (wined3d_settings
.offscreen_rendering_mode
!= ORM_FBO
) {
2069 context
->draw_buffer_dirty
= FALSE
;
2079 case CTXUSAGE_RESOURCELOAD
:
2080 /* This does not require any special states to be set up */
2083 case CTXUSAGE_CLEAR
:
2084 if(context
->last_was_blit
) {
2085 device
->frag_pipe
->enable_extension((IWineD3DDevice
*)device
, TRUE
);
2088 /* Blending and clearing should be orthogonal, but tests on the nvidia driver show that disabling
2089 * blending when clearing improves the clearing performance incredibly.
2092 glDisable(GL_BLEND
);
2094 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE
), state_table
);
2097 glEnable(GL_SCISSOR_TEST
);
2098 checkGLcall("glEnable GL_SCISSOR_TEST");
2100 context
->last_was_blit
= FALSE
;
2101 Context_MarkStateDirty(context
, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE
), state_table
);
2102 Context_MarkStateDirty(context
, STATE_SCISSORRECT
, state_table
);
2105 case CTXUSAGE_DRAWPRIM
:
2106 /* This needs all dirty states applied */
2107 if(context
->last_was_blit
) {
2108 device
->frag_pipe
->enable_extension((IWineD3DDevice
*)device
, TRUE
);
2111 IWineD3DDeviceImpl_FindTexUnitMap(device
);
2112 device_preload_textures(device
);
2113 if (isStateDirty(context
, STATE_VDECL
))
2114 device_update_stream_info(device
, context
->gl_info
);
2117 for (i
= 0; i
< context
->numDirtyEntries
; ++i
)
2119 DWORD rep
= context
->dirtyArray
[i
];
2120 DWORD idx
= rep
/ (sizeof(*context
->isStateDirty
) * CHAR_BIT
);
2121 BYTE shift
= rep
& ((sizeof(*context
->isStateDirty
) * CHAR_BIT
) - 1);
2122 context
->isStateDirty
[idx
] &= ~(1 << shift
);
2123 state_table
[rep
].apply(rep
, device
->stateBlock
, context
);
2126 context
->numDirtyEntries
= 0; /* This makes the whole list clean */
2127 context
->last_was_blit
= FALSE
;
2131 SetupForBlit(device
, context
);
2135 FIXME("Unexpected context usage requested\n");
2139 /*****************************************************************************
2142 * Finds a rendering context and drawable matching the device and render
2143 * target for the current thread, activates them and puts them into the
2147 * This: Device to activate the context for
2148 * target: Requested render target
2149 * usage: Prepares the context for blitting, drawing or other actions
2151 *****************************************************************************/
2152 struct wined3d_context
*context_acquire(IWineD3DDeviceImpl
*device
, IWineD3DSurface
*target
, enum ContextUsage usage
)
2154 struct wined3d_context
*current_context
= context_get_current();
2155 struct wined3d_context
*context
;
2157 TRACE("device %p, target %p, usage %#x.\n", device
, target
, usage
);
2159 context
= FindContext(device
, target
);
2160 context_enter(context
);
2161 if (!context
->valid
) return context
;
2163 if (context
!= current_context
)
2165 if (!context_set_current(context
)) ERR("Failed to activate the new context.\n");
2166 else device
->frag_pipe
->enable_extension((IWineD3DDevice
*)device
, !context
->last_was_blit
);
2168 if (context
->vshader_const_dirty
)
2170 memset(context
->vshader_const_dirty
, 1,
2171 sizeof(*context
->vshader_const_dirty
) * device
->d3d_vshader_constantF
);
2172 device
->highest_dirty_vs_const
= device
->d3d_vshader_constantF
;
2174 if (context
->pshader_const_dirty
)
2176 memset(context
->pshader_const_dirty
, 1,
2177 sizeof(*context
->pshader_const_dirty
) * device
->d3d_pshader_constantF
);
2178 device
->highest_dirty_ps_const
= device
->d3d_pshader_constantF
;
2181 else if (context
->restore_ctx
)
2183 if (!pwglMakeCurrent(context
->hdc
, context
->glCtx
))
2185 DWORD err
= GetLastError();
2186 ERR("Failed to make GL context %p current on device context %p, last error %#x.\n",
2187 context
->hdc
, context
->glCtx
, err
);
2191 context_apply_state(context
, device
, usage
);