2 * Mesa 3-D graphics library
5 * Copyright (C) 2010 LunarG Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
26 * Chia-I Wu <olv@lunarg.com>
29 #include "main/mtypes.h"
30 #include "main/context.h"
31 #include "main/mfeatures.h"
32 #include "main/texobj.h"
33 #include "main/teximage.h"
34 #include "main/texstate.h"
35 #include "main/framebuffer.h"
36 #include "main/fbobject.h"
37 #include "main/renderbuffer.h"
38 #include "main/version.h"
39 #include "st_texture.h"
41 #include "st_context.h"
42 #include "st_format.h"
43 #include "st_cb_fbo.h"
44 #include "st_cb_flush.h"
45 #include "st_manager.h"
47 #include "state_tracker/st_gl_api.h"
49 #include "pipe/p_context.h"
50 #include "pipe/p_screen.h"
51 #include "util/u_format.h"
52 #include "util/u_pointer.h"
53 #include "util/u_inlines.h"
54 #include "util/u_atomic.h"
55 #include "util/u_surface.h"
58 * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.
59 * Return NULL if the struct gl_framebuffer is a user-created framebuffer.
60 * We'll only return non-null for window system framebuffers.
61 * Note that this function may fail.
63 static INLINE
struct st_framebuffer
*
64 st_ws_framebuffer(struct gl_framebuffer
*fb
)
66 /* FBO cannot be casted. See st_new_framebuffer */
67 if (fb
&& _mesa_is_winsys_fbo(fb
))
68 return (struct st_framebuffer
*) fb
;
73 * Map an attachment to a buffer index.
75 static INLINE gl_buffer_index
76 attachment_to_buffer_index(enum st_attachment_type statt
)
78 gl_buffer_index index
;
81 case ST_ATTACHMENT_FRONT_LEFT
:
82 index
= BUFFER_FRONT_LEFT
;
84 case ST_ATTACHMENT_BACK_LEFT
:
85 index
= BUFFER_BACK_LEFT
;
87 case ST_ATTACHMENT_FRONT_RIGHT
:
88 index
= BUFFER_FRONT_RIGHT
;
90 case ST_ATTACHMENT_BACK_RIGHT
:
91 index
= BUFFER_BACK_RIGHT
;
93 case ST_ATTACHMENT_DEPTH_STENCIL
:
96 case ST_ATTACHMENT_ACCUM
:
99 case ST_ATTACHMENT_SAMPLE
:
101 index
= BUFFER_COUNT
;
109 * Map a buffer index to an attachment.
111 static INLINE
enum st_attachment_type
112 buffer_index_to_attachment(gl_buffer_index index
)
114 enum st_attachment_type statt
;
117 case BUFFER_FRONT_LEFT
:
118 statt
= ST_ATTACHMENT_FRONT_LEFT
;
120 case BUFFER_BACK_LEFT
:
121 statt
= ST_ATTACHMENT_BACK_LEFT
;
123 case BUFFER_FRONT_RIGHT
:
124 statt
= ST_ATTACHMENT_FRONT_RIGHT
;
126 case BUFFER_BACK_RIGHT
:
127 statt
= ST_ATTACHMENT_BACK_RIGHT
;
130 statt
= ST_ATTACHMENT_DEPTH_STENCIL
;
133 statt
= ST_ATTACHMENT_ACCUM
;
136 statt
= ST_ATTACHMENT_INVALID
;
144 * Make sure a context picks up the latest cached state of the
145 * drawables it binds to.
148 st_context_validate(struct st_context
*st
,
149 struct st_framebuffer
*stdraw
,
150 struct st_framebuffer
*stread
)
152 if (stdraw
&& stdraw
->stamp
!= st
->draw_stamp
) {
153 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
154 _mesa_resize_framebuffer(st
->ctx
, &stdraw
->Base
,
156 stdraw
->Base
.Height
);
157 st
->draw_stamp
= stdraw
->stamp
;
160 if (stread
&& stread
->stamp
!= st
->read_stamp
) {
161 if (stread
!= stdraw
) {
162 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
163 _mesa_resize_framebuffer(st
->ctx
, &stread
->Base
,
165 stread
->Base
.Height
);
167 st
->read_stamp
= stread
->stamp
;
172 * Validate a framebuffer to make sure up-to-date pipe_textures are used.
173 * The context we need to pass in is s dummy context needed only to be
174 * able to get a pipe context to create pipe surfaces, and to have a
175 * context to call _mesa_resize_framebuffer():
176 * (That should probably be rethought, since those surfaces become
177 * drawable state, not context state, and can be freed by another pipe
181 st_framebuffer_validate(struct st_framebuffer
*stfb
,
182 struct st_context
*st
)
184 struct pipe_resource
*textures
[ST_ATTACHMENT_COUNT
];
187 boolean changed
= FALSE
;
188 int32_t new_stamp
= p_atomic_read(&stfb
->iface
->stamp
);
190 if (stfb
->iface_stamp
== new_stamp
)
193 /* validate the fb */
195 if (!stfb
->iface
->validate(stfb
->iface
, stfb
->statts
,
196 stfb
->num_statts
, textures
))
199 stfb
->iface_stamp
= new_stamp
;
200 new_stamp
= p_atomic_read(&stfb
->iface
->stamp
);
201 } while(stfb
->iface_stamp
!= new_stamp
);
203 width
= stfb
->Base
.Width
;
204 height
= stfb
->Base
.Height
;
206 for (i
= 0; i
< stfb
->num_statts
; i
++) {
207 struct st_renderbuffer
*strb
;
208 struct pipe_surface
*ps
, surf_tmpl
;
214 idx
= attachment_to_buffer_index(stfb
->statts
[i
]);
215 if (idx
>= BUFFER_COUNT
) {
216 pipe_resource_reference(&textures
[i
], NULL
);
220 strb
= st_renderbuffer(stfb
->Base
.Attachment
[idx
].Renderbuffer
);
222 if (strb
->texture
== textures
[i
]) {
223 pipe_resource_reference(&textures
[i
], NULL
);
227 u_surface_default_template(&surf_tmpl
, textures
[i
]);
228 ps
= st
->pipe
->create_surface(st
->pipe
, textures
[i
], &surf_tmpl
);
230 pipe_surface_reference(&strb
->surface
, ps
);
231 pipe_resource_reference(&strb
->texture
, ps
->texture
);
232 /* ownership transfered */
233 pipe_surface_reference(&ps
, NULL
);
237 strb
->Base
.Width
= strb
->surface
->width
;
238 strb
->Base
.Height
= strb
->surface
->height
;
240 width
= strb
->Base
.Width
;
241 height
= strb
->Base
.Height
;
244 pipe_resource_reference(&textures
[i
], NULL
);
249 _mesa_resize_framebuffer(st
->ctx
, &stfb
->Base
, width
, height
);
254 * Update the attachments to validate by looping the existing renderbuffers.
257 st_framebuffer_update_attachments(struct st_framebuffer
*stfb
)
261 stfb
->num_statts
= 0;
262 for (idx
= 0; idx
< BUFFER_COUNT
; idx
++) {
263 struct st_renderbuffer
*strb
;
264 enum st_attachment_type statt
;
266 strb
= st_renderbuffer(stfb
->Base
.Attachment
[idx
].Renderbuffer
);
267 if (!strb
|| strb
->software
)
270 statt
= buffer_index_to_attachment(idx
);
271 if (statt
!= ST_ATTACHMENT_INVALID
&&
272 st_visual_have_buffers(stfb
->iface
->visual
, 1 << statt
))
273 stfb
->statts
[stfb
->num_statts
++] = statt
;
279 * Add a renderbuffer to the framebuffer.
282 st_framebuffer_add_renderbuffer(struct st_framebuffer
*stfb
,
285 struct gl_renderbuffer
*rb
;
286 enum pipe_format format
;
292 /* do not distinguish depth/stencil buffers */
293 if (idx
== BUFFER_STENCIL
)
298 format
= stfb
->iface
->visual
->depth_stencil_format
;
302 format
= stfb
->iface
->visual
->accum_format
;
306 format
= stfb
->iface
->visual
->color_format
;
311 if (format
== PIPE_FORMAT_NONE
)
314 rb
= st_new_renderbuffer_fb(format
, stfb
->iface
->visual
->samples
, sw
);
318 if (idx
!= BUFFER_DEPTH
) {
319 _mesa_add_renderbuffer(&stfb
->Base
, idx
, rb
);
322 if (util_format_get_component_bits(format
, UTIL_FORMAT_COLORSPACE_ZS
, 0))
323 _mesa_add_renderbuffer(&stfb
->Base
, BUFFER_DEPTH
, rb
);
324 if (util_format_get_component_bits(format
, UTIL_FORMAT_COLORSPACE_ZS
, 1))
325 _mesa_add_renderbuffer(&stfb
->Base
, BUFFER_STENCIL
, rb
);
332 * Intialize a struct gl_config from a visual.
335 st_visual_to_context_mode(const struct st_visual
*visual
,
336 struct gl_config
*mode
)
338 memset(mode
, 0, sizeof(*mode
));
340 if (st_visual_have_buffers(visual
, ST_ATTACHMENT_BACK_LEFT_MASK
))
341 mode
->doubleBufferMode
= GL_TRUE
;
342 if (st_visual_have_buffers(visual
,
343 ST_ATTACHMENT_FRONT_RIGHT_MASK
| ST_ATTACHMENT_BACK_RIGHT_MASK
))
344 mode
->stereoMode
= GL_TRUE
;
346 if (visual
->color_format
!= PIPE_FORMAT_NONE
) {
347 mode
->rgbMode
= GL_TRUE
;
350 util_format_get_component_bits(visual
->color_format
,
351 UTIL_FORMAT_COLORSPACE_RGB
, 0);
353 util_format_get_component_bits(visual
->color_format
,
354 UTIL_FORMAT_COLORSPACE_RGB
, 1);
356 util_format_get_component_bits(visual
->color_format
,
357 UTIL_FORMAT_COLORSPACE_RGB
, 2);
359 util_format_get_component_bits(visual
->color_format
,
360 UTIL_FORMAT_COLORSPACE_RGB
, 3);
362 mode
->rgbBits
= mode
->redBits
+
363 mode
->greenBits
+ mode
->blueBits
+ mode
->alphaBits
;
366 if (visual
->depth_stencil_format
!= PIPE_FORMAT_NONE
) {
368 util_format_get_component_bits(visual
->depth_stencil_format
,
369 UTIL_FORMAT_COLORSPACE_ZS
, 0);
371 util_format_get_component_bits(visual
->depth_stencil_format
,
372 UTIL_FORMAT_COLORSPACE_ZS
, 1);
374 mode
->haveDepthBuffer
= mode
->depthBits
> 0;
375 mode
->haveStencilBuffer
= mode
->stencilBits
> 0;
378 if (visual
->accum_format
!= PIPE_FORMAT_NONE
) {
379 mode
->haveAccumBuffer
= GL_TRUE
;
382 util_format_get_component_bits(visual
->accum_format
,
383 UTIL_FORMAT_COLORSPACE_RGB
, 0);
384 mode
->accumGreenBits
=
385 util_format_get_component_bits(visual
->accum_format
,
386 UTIL_FORMAT_COLORSPACE_RGB
, 1);
387 mode
->accumBlueBits
=
388 util_format_get_component_bits(visual
->accum_format
,
389 UTIL_FORMAT_COLORSPACE_RGB
, 2);
390 mode
->accumAlphaBits
=
391 util_format_get_component_bits(visual
->accum_format
,
392 UTIL_FORMAT_COLORSPACE_RGB
, 3);
395 if (visual
->samples
> 1) {
396 mode
->sampleBuffers
= 1;
397 mode
->samples
= visual
->samples
;
402 * Create a framebuffer from a manager interface.
404 static struct st_framebuffer
*
405 st_framebuffer_create(struct st_framebuffer_iface
*stfbi
)
407 struct st_framebuffer
*stfb
;
408 struct gl_config mode
;
414 stfb
= CALLOC_STRUCT(st_framebuffer
);
418 st_visual_to_context_mode(stfbi
->visual
, &mode
);
419 _mesa_initialize_window_framebuffer(&stfb
->Base
, &mode
);
422 stfb
->iface_stamp
= p_atomic_read(&stfbi
->stamp
) - 1;
424 /* add the color buffer */
425 idx
= stfb
->Base
._ColorDrawBufferIndexes
[0];
426 if (!st_framebuffer_add_renderbuffer(stfb
, idx
)) {
431 st_framebuffer_add_renderbuffer(stfb
, BUFFER_DEPTH
);
432 st_framebuffer_add_renderbuffer(stfb
, BUFFER_ACCUM
);
435 st_framebuffer_update_attachments(stfb
);
437 stfb
->Base
.Initialized
= GL_TRUE
;
443 * Reference a framebuffer.
446 st_framebuffer_reference(struct st_framebuffer
**ptr
,
447 struct st_framebuffer
*stfb
)
449 struct gl_framebuffer
*fb
= &stfb
->Base
;
450 _mesa_reference_framebuffer((struct gl_framebuffer
**) ptr
, fb
);
454 st_context_flush(struct st_context_iface
*stctxi
, unsigned flags
,
455 struct pipe_fence_handle
**fence
)
457 struct st_context
*st
= (struct st_context
*) stctxi
;
458 enum pipe_flush_flags pipe_flags
= 0;
460 if (flags
& ST_FLUSH_END_OF_FRAME
) {
461 pipe_flags
|= PIPE_FLUSH_END_OF_FRAME
;
464 st_flush(st
, fence
, pipe_flags
);
465 if (flags
& ST_FLUSH_FRONT
)
466 st_manager_flush_frontbuffer(st
);
470 st_context_teximage(struct st_context_iface
*stctxi
,
471 enum st_texture_type tex_type
,
472 int level
, enum pipe_format internal_format
,
473 struct pipe_resource
*tex
, boolean mipmap
)
475 struct st_context
*st
= (struct st_context
*) stctxi
;
476 struct gl_context
*ctx
= st
->ctx
;
477 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
478 struct gl_texture_object
*texObj
;
479 struct gl_texture_image
*texImage
;
480 struct st_texture_object
*stObj
;
481 struct st_texture_image
*stImage
;
482 GLenum internalFormat
;
483 GLuint width
, height
, depth
;
488 target
= GL_TEXTURE_1D
;
491 target
= GL_TEXTURE_2D
;
494 target
= GL_TEXTURE_3D
;
496 case ST_TEXTURE_RECT
:
497 target
= GL_TEXTURE_RECTANGLE_ARB
;
503 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
504 _mesa_lock_texture(ctx
, texObj
);
506 stObj
= st_texture_object(texObj
);
507 /* switch to surface based */
508 if (!stObj
->surface_based
) {
509 _mesa_clear_texture_object(ctx
, texObj
);
510 stObj
->surface_based
= GL_TRUE
;
513 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
514 stImage
= st_texture_image(texImage
);
519 * XXX When internal_format and tex->format differ, st_finalize_texture
520 * needs to allocate a new texture with internal_format and copy the
521 * texture here into the new one. It will result in surface_copy being
522 * called on surfaces whose formats differ.
524 * To avoid that, internal_format is (wrongly) ignored here. A sane fix
525 * is to use a sampler view.
527 if (!st_sampler_compat_formats(tex
->format
, internal_format
))
528 internal_format
= tex
->format
;
530 if (util_format_get_component_bits(internal_format
,
531 UTIL_FORMAT_COLORSPACE_RGB
, 3) > 0)
532 internalFormat
= GL_RGBA
;
534 internalFormat
= GL_RGB
;
536 texFormat
= st_ChooseTextureFormat(ctx
, target
, internalFormat
,
537 GL_BGRA
, GL_UNSIGNED_BYTE
);
539 _mesa_init_teximage_fields(ctx
, texImage
,
540 tex
->width0
, tex
->height0
, 1, 0,
541 internalFormat
, texFormat
);
544 height
= tex
->height0
;
547 /* grow the image size until we hit level = 0 */
559 _mesa_clear_texture_image(ctx
, texImage
);
560 width
= height
= depth
= 0;
563 pipe_resource_reference(&stImage
->pt
, tex
);
564 stObj
->width0
= width
;
565 stObj
->height0
= height
;
566 stObj
->depth0
= depth
;
568 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
569 _mesa_unlock_texture(ctx
, texObj
);
575 st_context_copy(struct st_context_iface
*stctxi
,
576 struct st_context_iface
*stsrci
, unsigned mask
)
578 struct st_context
*st
= (struct st_context
*) stctxi
;
579 struct st_context
*src
= (struct st_context
*) stsrci
;
581 _mesa_copy_context(src
->ctx
, st
->ctx
, mask
);
585 st_context_share(struct st_context_iface
*stctxi
,
586 struct st_context_iface
*stsrci
)
588 struct st_context
*st
= (struct st_context
*) stctxi
;
589 struct st_context
*src
= (struct st_context
*) stsrci
;
591 return _mesa_share_state(st
->ctx
, src
->ctx
);
595 st_context_destroy(struct st_context_iface
*stctxi
)
597 struct st_context
*st
= (struct st_context
*) stctxi
;
598 st_destroy_context(st
);
601 static struct st_context_iface
*
602 st_api_create_context(struct st_api
*stapi
, struct st_manager
*smapi
,
603 const struct st_context_attribs
*attribs
,
604 enum st_context_error
*error
,
605 struct st_context_iface
*shared_stctxi
)
607 struct st_context
*shared_ctx
= (struct st_context
*) shared_stctxi
;
608 struct st_context
*st
;
609 struct pipe_context
*pipe
;
610 struct gl_config mode
;
613 if (!(stapi
->profile_mask
& (1 << attribs
->profile
)))
616 switch (attribs
->profile
) {
617 case ST_PROFILE_DEFAULT
:
618 api
= API_OPENGL_COMPAT
;
620 case ST_PROFILE_OPENGL_ES1
:
623 case ST_PROFILE_OPENGL_ES2
:
626 case ST_PROFILE_OPENGL_CORE
:
627 api
= API_OPENGL_CORE
;
630 *error
= ST_CONTEXT_ERROR_BAD_API
;
635 pipe
= smapi
->screen
->context_create(smapi
->screen
, NULL
);
637 *error
= ST_CONTEXT_ERROR_NO_MEMORY
;
641 st_visual_to_context_mode(&attribs
->visual
, &mode
);
642 st
= st_create_context(api
, pipe
, &mode
, shared_ctx
, &attribs
->options
);
644 *error
= ST_CONTEXT_ERROR_NO_MEMORY
;
649 if (attribs
->flags
& ST_CONTEXT_FLAG_DEBUG
)
650 st
->ctx
->Const
.ContextFlags
|= GL_CONTEXT_FLAG_DEBUG_BIT
;
651 if (attribs
->flags
& ST_CONTEXT_FLAG_FORWARD_COMPATIBLE
)
652 st
->ctx
->Const
.ContextFlags
|= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT
;
654 /* need to perform version check */
655 if (attribs
->major
> 1 || attribs
->minor
> 0) {
656 /* Is the actual version less than the requested version?
658 if (st
->ctx
->Version
< attribs
->major
* 10 + attribs
->minor
) {
659 *error
= ST_CONTEXT_ERROR_BAD_VERSION
;
660 st_destroy_context(st
);
665 st
->invalidate_on_gl_viewport
=
666 smapi
->get_param(smapi
, ST_MANAGER_BROKEN_INVALIDATE
);
668 st
->iface
.destroy
= st_context_destroy
;
669 st
->iface
.flush
= st_context_flush
;
670 st
->iface
.teximage
= st_context_teximage
;
671 st
->iface
.copy
= st_context_copy
;
672 st
->iface
.share
= st_context_share
;
673 st
->iface
.st_context_private
= (void *) smapi
;
674 st
->iface
.cso_context
= st
->cso_context
;
675 st
->iface
.pipe
= st
->pipe
;
677 *error
= ST_CONTEXT_SUCCESS
;
681 static struct st_context_iface
*
682 st_api_get_current(struct st_api
*stapi
)
684 GET_CURRENT_CONTEXT(ctx
);
685 struct st_context
*st
= (ctx
) ? ctx
->st
: NULL
;
687 return (st
) ? &st
->iface
: NULL
;
690 static struct st_framebuffer
*
691 st_framebuffer_reuse_or_create(struct gl_framebuffer
*fb
,
692 struct st_framebuffer_iface
*stfbi
)
694 struct st_framebuffer
*cur
= st_ws_framebuffer(fb
), *stfb
= NULL
;
696 /* dummy framebuffers cant be used as st_framebuffer */
697 if (cur
&& &cur
->Base
!= _mesa_get_incomplete_framebuffer() &&
698 cur
->iface
== stfbi
) {
699 /* reuse the current stfb */
700 st_framebuffer_reference(&stfb
, cur
);
703 /* create a new one */
704 stfb
= st_framebuffer_create(stfbi
);
711 st_api_make_current(struct st_api
*stapi
, struct st_context_iface
*stctxi
,
712 struct st_framebuffer_iface
*stdrawi
,
713 struct st_framebuffer_iface
*streadi
)
715 struct st_context
*st
= (struct st_context
*) stctxi
;
716 struct st_framebuffer
*stdraw
, *stread
;
719 _glapi_check_multithread();
722 /* reuse or create the draw fb */
723 stdraw
= st_framebuffer_reuse_or_create(st
->ctx
->WinSysDrawBuffer
,
725 if (streadi
!= stdrawi
) {
726 /* do the same for the read fb */
727 stread
= st_framebuffer_reuse_or_create(st
->ctx
->WinSysReadBuffer
,
732 /* reuse the draw fb for the read fb */
734 st_framebuffer_reference(&stread
, stdraw
);
737 if (stdraw
&& stread
) {
738 st_framebuffer_validate(stdraw
, st
);
739 if (stread
!= stdraw
)
740 st_framebuffer_validate(stread
, st
);
742 ret
= _mesa_make_current(st
->ctx
, &stdraw
->Base
, &stread
->Base
);
744 st
->draw_stamp
= stdraw
->stamp
- 1;
745 st
->read_stamp
= stread
->stamp
- 1;
746 st_context_validate(st
, stdraw
, stread
);
749 struct gl_framebuffer
*incomplete
= _mesa_get_incomplete_framebuffer();
750 ret
= _mesa_make_current(st
->ctx
, incomplete
, incomplete
);
753 st_framebuffer_reference(&stdraw
, NULL
);
754 st_framebuffer_reference(&stread
, NULL
);
757 ret
= _mesa_make_current(NULL
, NULL
, NULL
);
764 st_api_get_proc_address(struct st_api
*stapi
, const char *procname
)
766 return (st_proc_t
) _glapi_get_proc_address(procname
);
770 st_api_destroy(struct st_api
*stapi
)
775 * Flush the front buffer if the current context renders to the front buffer.
778 st_manager_flush_frontbuffer(struct st_context
*st
)
780 struct st_framebuffer
*stfb
= st_ws_framebuffer(st
->ctx
->DrawBuffer
);
781 struct st_renderbuffer
*strb
= NULL
;
784 strb
= st_renderbuffer(stfb
->Base
.Attachment
[BUFFER_FRONT_LEFT
].Renderbuffer
);
788 /* never a dummy fb */
789 assert(&stfb
->Base
!= _mesa_get_incomplete_framebuffer());
790 stfb
->iface
->flush_front(&st
->iface
, stfb
->iface
, ST_ATTACHMENT_FRONT_LEFT
);
794 * Return the surface of an EGLImage.
795 * FIXME: I think this should operate on resources, not surfaces
797 struct pipe_surface
*
798 st_manager_get_egl_image_surface(struct st_context
*st
, void *eglimg
)
800 struct st_manager
*smapi
=
801 (struct st_manager
*) st
->iface
.st_context_private
;
802 struct st_egl_image stimg
;
803 struct pipe_surface
*ps
, surf_tmpl
;
805 if (!smapi
|| !smapi
->get_egl_image
)
808 memset(&stimg
, 0, sizeof(stimg
));
809 if (!smapi
->get_egl_image(smapi
, eglimg
, &stimg
))
812 u_surface_default_template(&surf_tmpl
, stimg
.texture
);
813 surf_tmpl
.u
.tex
.level
= stimg
.level
;
814 surf_tmpl
.u
.tex
.first_layer
= stimg
.layer
;
815 surf_tmpl
.u
.tex
.last_layer
= stimg
.layer
;
816 ps
= st
->pipe
->create_surface(st
->pipe
, stimg
.texture
, &surf_tmpl
);
817 pipe_resource_reference(&stimg
.texture
, NULL
);
823 * Re-validate the framebuffers.
826 st_manager_validate_framebuffers(struct st_context
*st
)
828 struct st_framebuffer
*stdraw
= st_ws_framebuffer(st
->ctx
->DrawBuffer
);
829 struct st_framebuffer
*stread
= st_ws_framebuffer(st
->ctx
->ReadBuffer
);
832 st_framebuffer_validate(stdraw
, st
);
833 if (stread
&& stread
!= stdraw
)
834 st_framebuffer_validate(stread
, st
);
836 st_context_validate(st
, stdraw
, stread
);
840 * Add a color renderbuffer on demand.
843 st_manager_add_color_renderbuffer(struct st_context
*st
,
844 struct gl_framebuffer
*fb
,
847 struct st_framebuffer
*stfb
= st_ws_framebuffer(fb
);
853 if (stfb
->Base
.Attachment
[idx
].Renderbuffer
)
857 case BUFFER_FRONT_LEFT
:
858 case BUFFER_BACK_LEFT
:
859 case BUFFER_FRONT_RIGHT
:
860 case BUFFER_BACK_RIGHT
:
867 if (!st_framebuffer_add_renderbuffer(stfb
, idx
))
870 st_framebuffer_update_attachments(stfb
);
873 * Force a call to the state tracker manager to validate the
874 * new renderbuffer. It might be that there is a window system
875 * renderbuffer available.
878 stfb
->iface_stamp
= p_atomic_read(&stfb
->iface
->stamp
) - 1;
880 st_invalidate_state(st
->ctx
, _NEW_BUFFERS
);
885 static const struct st_api st_gl_api
= {
886 "Mesa " MESA_VERSION_STRING
,
889 ST_PROFILE_DEFAULT_MASK
|
890 ST_PROFILE_OPENGL_CORE_MASK
|
893 ST_PROFILE_OPENGL_ES1_MASK
|
896 ST_PROFILE_OPENGL_ES2_MASK
|
899 ST_API_FEATURE_MS_VISUALS_MASK
,
901 st_api_get_proc_address
,
902 st_api_create_context
,
908 st_gl_api_create(void)
910 return (struct st_api
*) &st_gl_api
;