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 return (struct st_framebuffer
*) ((fb
&& !fb
->Name
) ? fb
: NULL
);
71 * Map an attachment to a buffer index.
73 static INLINE gl_buffer_index
74 attachment_to_buffer_index(enum st_attachment_type statt
)
76 gl_buffer_index index
;
79 case ST_ATTACHMENT_FRONT_LEFT
:
80 index
= BUFFER_FRONT_LEFT
;
82 case ST_ATTACHMENT_BACK_LEFT
:
83 index
= BUFFER_BACK_LEFT
;
85 case ST_ATTACHMENT_FRONT_RIGHT
:
86 index
= BUFFER_FRONT_RIGHT
;
88 case ST_ATTACHMENT_BACK_RIGHT
:
89 index
= BUFFER_BACK_RIGHT
;
91 case ST_ATTACHMENT_DEPTH_STENCIL
:
94 case ST_ATTACHMENT_ACCUM
:
97 case ST_ATTACHMENT_SAMPLE
:
107 * Map a buffer index to an attachment.
109 static INLINE
enum st_attachment_type
110 buffer_index_to_attachment(gl_buffer_index index
)
112 enum st_attachment_type statt
;
115 case BUFFER_FRONT_LEFT
:
116 statt
= ST_ATTACHMENT_FRONT_LEFT
;
118 case BUFFER_BACK_LEFT
:
119 statt
= ST_ATTACHMENT_BACK_LEFT
;
121 case BUFFER_FRONT_RIGHT
:
122 statt
= ST_ATTACHMENT_FRONT_RIGHT
;
124 case BUFFER_BACK_RIGHT
:
125 statt
= ST_ATTACHMENT_BACK_RIGHT
;
128 statt
= ST_ATTACHMENT_DEPTH_STENCIL
;
131 statt
= ST_ATTACHMENT_ACCUM
;
134 statt
= ST_ATTACHMENT_INVALID
;
142 * Make sure a context picks up the latest cached state of the
143 * drawables it binds to.
146 st_context_validate(struct st_context
*st
,
147 struct st_framebuffer
*stdraw
,
148 struct st_framebuffer
*stread
)
150 if (stdraw
&& stdraw
->stamp
!= st
->draw_stamp
) {
151 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
152 _mesa_resize_framebuffer(st
->ctx
, &stdraw
->Base
,
154 stdraw
->Base
.Height
);
155 st
->draw_stamp
= stdraw
->stamp
;
158 if (stread
&& stread
->stamp
!= st
->read_stamp
) {
159 if (stread
!= stdraw
) {
160 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
161 _mesa_resize_framebuffer(st
->ctx
, &stread
->Base
,
163 stread
->Base
.Height
);
165 st
->read_stamp
= stread
->stamp
;
170 * Validate a framebuffer to make sure up-to-date pipe_textures are used.
171 * The context we need to pass in is s dummy context needed only to be
172 * able to get a pipe context to create pipe surfaces, and to have a
173 * context to call _mesa_resize_framebuffer():
174 * (That should probably be rethought, since those surfaces become
175 * drawable state, not context state, and can be freed by another pipe
179 st_framebuffer_validate(struct st_framebuffer
*stfb
,
180 struct st_context
*st
)
182 struct pipe_resource
*textures
[ST_ATTACHMENT_COUNT
];
185 boolean changed
= FALSE
;
186 int32_t new_stamp
= p_atomic_read(&stfb
->iface
->stamp
);
188 if (stfb
->iface_stamp
== new_stamp
)
191 /* validate the fb */
193 if (!stfb
->iface
->validate(stfb
->iface
, stfb
->statts
,
194 stfb
->num_statts
, textures
))
197 stfb
->iface_stamp
= new_stamp
;
198 new_stamp
= p_atomic_read(&stfb
->iface
->stamp
);
199 } while(stfb
->iface_stamp
!= new_stamp
);
201 width
= stfb
->Base
.Width
;
202 height
= stfb
->Base
.Height
;
204 for (i
= 0; i
< stfb
->num_statts
; i
++) {
205 struct st_renderbuffer
*strb
;
206 struct pipe_surface
*ps
, surf_tmpl
;
212 idx
= attachment_to_buffer_index(stfb
->statts
[i
]);
213 if (idx
>= BUFFER_COUNT
) {
214 pipe_resource_reference(&textures
[i
], NULL
);
218 strb
= st_renderbuffer(stfb
->Base
.Attachment
[idx
].Renderbuffer
);
220 if (strb
->texture
== textures
[i
]) {
221 pipe_resource_reference(&textures
[i
], NULL
);
225 u_surface_default_template(&surf_tmpl
, textures
[i
],
226 PIPE_BIND_RENDER_TARGET
);
227 ps
= st
->pipe
->create_surface(st
->pipe
, textures
[i
], &surf_tmpl
);
229 pipe_surface_reference(&strb
->surface
, ps
);
230 pipe_resource_reference(&strb
->texture
, ps
->texture
);
231 /* ownership transfered */
232 pipe_surface_reference(&ps
, NULL
);
236 strb
->Base
.Width
= strb
->surface
->width
;
237 strb
->Base
.Height
= strb
->surface
->height
;
239 width
= strb
->Base
.Width
;
240 height
= strb
->Base
.Height
;
243 pipe_resource_reference(&textures
[i
], NULL
);
248 _mesa_resize_framebuffer(st
->ctx
, &stfb
->Base
, width
, height
);
253 * Update the attachments to validate by looping the existing renderbuffers.
256 st_framebuffer_update_attachments(struct st_framebuffer
*stfb
)
260 stfb
->num_statts
= 0;
261 for (idx
= 0; idx
< BUFFER_COUNT
; idx
++) {
262 struct st_renderbuffer
*strb
;
263 enum st_attachment_type statt
;
265 strb
= st_renderbuffer(stfb
->Base
.Attachment
[idx
].Renderbuffer
);
266 if (!strb
|| strb
->software
)
269 statt
= buffer_index_to_attachment(idx
);
270 if (statt
!= ST_ATTACHMENT_INVALID
&&
271 st_visual_have_buffers(stfb
->iface
->visual
, 1 << statt
))
272 stfb
->statts
[stfb
->num_statts
++] = statt
;
278 * Add a renderbuffer to the framebuffer.
281 st_framebuffer_add_renderbuffer(struct st_framebuffer
*stfb
,
284 struct gl_renderbuffer
*rb
;
285 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 samples
= stfb
->iface
->visual
->samples
;
316 samples
= st_get_msaa();
318 rb
= st_new_renderbuffer_fb(format
, samples
, sw
);
322 if (idx
!= BUFFER_DEPTH
) {
323 _mesa_add_renderbuffer(&stfb
->Base
, idx
, rb
);
326 if (util_format_get_component_bits(format
, UTIL_FORMAT_COLORSPACE_ZS
, 0))
327 _mesa_add_renderbuffer(&stfb
->Base
, BUFFER_DEPTH
, rb
);
328 if (util_format_get_component_bits(format
, UTIL_FORMAT_COLORSPACE_ZS
, 1))
329 _mesa_add_renderbuffer(&stfb
->Base
, BUFFER_STENCIL
, rb
);
336 * Intialize a struct gl_config from a visual.
339 st_visual_to_context_mode(const struct st_visual
*visual
,
340 struct gl_config
*mode
)
342 memset(mode
, 0, sizeof(*mode
));
344 if (st_visual_have_buffers(visual
, ST_ATTACHMENT_BACK_LEFT_MASK
))
345 mode
->doubleBufferMode
= GL_TRUE
;
346 if (st_visual_have_buffers(visual
,
347 ST_ATTACHMENT_FRONT_RIGHT_MASK
| ST_ATTACHMENT_BACK_RIGHT_MASK
))
348 mode
->stereoMode
= GL_TRUE
;
350 if (visual
->color_format
!= PIPE_FORMAT_NONE
) {
351 mode
->rgbMode
= GL_TRUE
;
354 util_format_get_component_bits(visual
->color_format
,
355 UTIL_FORMAT_COLORSPACE_RGB
, 0);
357 util_format_get_component_bits(visual
->color_format
,
358 UTIL_FORMAT_COLORSPACE_RGB
, 1);
360 util_format_get_component_bits(visual
->color_format
,
361 UTIL_FORMAT_COLORSPACE_RGB
, 2);
363 util_format_get_component_bits(visual
->color_format
,
364 UTIL_FORMAT_COLORSPACE_RGB
, 3);
366 mode
->rgbBits
= mode
->redBits
+
367 mode
->greenBits
+ mode
->blueBits
+ mode
->alphaBits
;
370 if (visual
->depth_stencil_format
!= PIPE_FORMAT_NONE
) {
372 util_format_get_component_bits(visual
->depth_stencil_format
,
373 UTIL_FORMAT_COLORSPACE_ZS
, 0);
375 util_format_get_component_bits(visual
->depth_stencil_format
,
376 UTIL_FORMAT_COLORSPACE_ZS
, 1);
378 mode
->haveDepthBuffer
= mode
->depthBits
> 0;
379 mode
->haveStencilBuffer
= mode
->stencilBits
> 0;
382 if (visual
->accum_format
!= PIPE_FORMAT_NONE
) {
383 mode
->haveAccumBuffer
= GL_TRUE
;
386 util_format_get_component_bits(visual
->accum_format
,
387 UTIL_FORMAT_COLORSPACE_RGB
, 0);
388 mode
->accumGreenBits
=
389 util_format_get_component_bits(visual
->accum_format
,
390 UTIL_FORMAT_COLORSPACE_RGB
, 1);
391 mode
->accumBlueBits
=
392 util_format_get_component_bits(visual
->accum_format
,
393 UTIL_FORMAT_COLORSPACE_RGB
, 2);
394 mode
->accumAlphaBits
=
395 util_format_get_component_bits(visual
->accum_format
,
396 UTIL_FORMAT_COLORSPACE_RGB
, 3);
399 if (visual
->samples
) {
400 mode
->sampleBuffers
= 1;
401 mode
->samples
= visual
->samples
;
406 * Create a framebuffer from a manager interface.
408 static struct st_framebuffer
*
409 st_framebuffer_create(struct st_framebuffer_iface
*stfbi
)
411 struct st_framebuffer
*stfb
;
412 struct gl_config mode
;
418 stfb
= CALLOC_STRUCT(st_framebuffer
);
422 st_visual_to_context_mode(stfbi
->visual
, &mode
);
423 _mesa_initialize_window_framebuffer(&stfb
->Base
, &mode
);
426 stfb
->iface_stamp
= p_atomic_read(&stfbi
->stamp
) - 1;
428 /* add the color buffer */
429 idx
= stfb
->Base
._ColorDrawBufferIndexes
[0];
430 if (!st_framebuffer_add_renderbuffer(stfb
, idx
)) {
435 st_framebuffer_add_renderbuffer(stfb
, BUFFER_DEPTH
);
436 st_framebuffer_add_renderbuffer(stfb
, BUFFER_ACCUM
);
439 st_framebuffer_update_attachments(stfb
);
441 stfb
->Base
.Initialized
= GL_TRUE
;
447 * Reference a framebuffer.
450 st_framebuffer_reference(struct st_framebuffer
**ptr
,
451 struct st_framebuffer
*stfb
)
453 struct gl_framebuffer
*fb
= &stfb
->Base
;
454 _mesa_reference_framebuffer((struct gl_framebuffer
**) ptr
, fb
);
458 st_context_flush(struct st_context_iface
*stctxi
, unsigned flags
,
459 struct pipe_fence_handle
**fence
)
461 struct st_context
*st
= (struct st_context
*) stctxi
;
463 if (flags
& ST_FLUSH_FRONT
)
464 st_manager_flush_frontbuffer(st
);
468 st_context_teximage(struct st_context_iface
*stctxi
,
469 enum st_texture_type target
,
470 int level
, enum pipe_format internal_format
,
471 struct pipe_resource
*tex
, boolean mipmap
)
473 struct st_context
*st
= (struct st_context
*) stctxi
;
474 struct gl_context
*ctx
= st
->ctx
;
475 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
476 struct gl_texture_object
*texObj
;
477 struct gl_texture_image
*texImage
;
478 struct st_texture_object
*stObj
;
479 struct st_texture_image
*stImage
;
480 GLenum internalFormat
;
481 GLuint width
, height
, depth
;
485 target
= GL_TEXTURE_1D
;
488 target
= GL_TEXTURE_2D
;
491 target
= GL_TEXTURE_3D
;
493 case ST_TEXTURE_RECT
:
494 target
= GL_TEXTURE_RECTANGLE_ARB
;
501 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
502 _mesa_lock_texture(ctx
, texObj
);
504 stObj
= st_texture_object(texObj
);
505 /* switch to surface based */
506 if (!stObj
->surface_based
) {
507 _mesa_clear_texture_object(ctx
, texObj
);
508 stObj
->surface_based
= GL_TRUE
;
511 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
512 stImage
= st_texture_image(texImage
);
517 * XXX When internal_format and tex->format differ, st_finalize_texture
518 * needs to allocate a new texture with internal_format and copy the
519 * texture here into the new one. It will result in surface_copy being
520 * called on surfaces whose formats differ.
522 * To avoid that, internal_format is (wrongly) ignored here. A sane fix
523 * is to use a sampler view.
525 if (!st_sampler_compat_formats(tex
->format
, internal_format
))
526 internal_format
= tex
->format
;
528 if (util_format_get_component_bits(internal_format
,
529 UTIL_FORMAT_COLORSPACE_RGB
, 3) > 0)
530 internalFormat
= GL_RGBA
;
532 internalFormat
= GL_RGB
;
534 texFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
535 GL_BGRA
, GL_UNSIGNED_BYTE
);
537 _mesa_init_teximage_fields(ctx
, texImage
,
538 tex
->width0
, tex
->height0
, 1, 0,
539 internalFormat
, texFormat
);
542 height
= tex
->height0
;
545 /* grow the image size until we hit level = 0 */
557 _mesa_clear_texture_image(ctx
, texImage
);
558 width
= height
= depth
= 0;
561 pipe_resource_reference(&stImage
->pt
, tex
);
562 stObj
->width0
= width
;
563 stObj
->height0
= height
;
564 stObj
->depth0
= depth
;
566 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
567 _mesa_unlock_texture(ctx
, texObj
);
573 st_context_copy(struct st_context_iface
*stctxi
,
574 struct st_context_iface
*stsrci
, unsigned mask
)
576 struct st_context
*st
= (struct st_context
*) stctxi
;
577 struct st_context
*src
= (struct st_context
*) stsrci
;
579 _mesa_copy_context(src
->ctx
, st
->ctx
, mask
);
583 st_context_share(struct st_context_iface
*stctxi
,
584 struct st_context_iface
*stsrci
)
586 struct st_context
*st
= (struct st_context
*) stctxi
;
587 struct st_context
*src
= (struct st_context
*) stsrci
;
589 return _mesa_share_state(st
->ctx
, src
->ctx
);
593 st_context_destroy(struct st_context_iface
*stctxi
)
595 struct st_context
*st
= (struct st_context
*) stctxi
;
596 st_destroy_context(st
);
599 static struct st_context_iface
*
600 st_api_create_context(struct st_api
*stapi
, struct st_manager
*smapi
,
601 const struct st_context_attribs
*attribs
,
602 enum st_context_error
*error
,
603 struct st_context_iface
*shared_stctxi
)
605 struct st_context
*shared_ctx
= (struct st_context
*) shared_stctxi
;
606 struct st_context
*st
;
607 struct pipe_context
*pipe
;
608 struct gl_config mode
;
611 if (!(stapi
->profile_mask
& (1 << attribs
->profile
)))
614 switch (attribs
->profile
) {
615 case ST_PROFILE_DEFAULT
:
618 case ST_PROFILE_OPENGL_ES1
:
621 case ST_PROFILE_OPENGL_ES2
:
624 case ST_PROFILE_OPENGL_CORE
:
626 *error
= ST_CONTEXT_ERROR_BAD_API
;
631 pipe
= smapi
->screen
->context_create(smapi
->screen
, NULL
);
633 *error
= ST_CONTEXT_ERROR_NO_MEMORY
;
637 st_visual_to_context_mode(&attribs
->visual
, &mode
);
638 st
= st_create_context(api
, pipe
, &mode
, shared_ctx
);
640 *error
= ST_CONTEXT_ERROR_NO_MEMORY
;
645 /* need to perform version check */
646 if (attribs
->major
> 1 || attribs
->minor
> 0) {
647 _mesa_compute_version(st
->ctx
);
649 /* Is the actual version less than the requested version? Mesa can't
650 * yet enforce the added restrictions of a forward-looking context, so
653 if (st
->ctx
->VersionMajor
* 10 + st
->ctx
->VersionMinor
<
654 attribs
->major
* 10 + attribs
->minor
655 || (attribs
->flags
& ~ST_CONTEXT_FLAG_DEBUG
) != 0) {
656 *error
= ST_CONTEXT_ERROR_BAD_VERSION
;
657 st_destroy_context(st
);
662 st
->invalidate_on_gl_viewport
=
663 smapi
->get_param(smapi
, ST_MANAGER_BROKEN_INVALIDATE
);
665 st
->iface
.destroy
= st_context_destroy
;
666 st
->iface
.flush
= st_context_flush
;
667 st
->iface
.teximage
= st_context_teximage
;
668 st
->iface
.copy
= st_context_copy
;
669 st
->iface
.share
= st_context_share
;
670 st
->iface
.st_context_private
= (void *) smapi
;
672 *error
= ST_CONTEXT_SUCCESS
;
676 static struct st_context_iface
*
677 st_api_get_current(struct st_api
*stapi
)
679 GET_CURRENT_CONTEXT(ctx
);
680 struct st_context
*st
= (ctx
) ? ctx
->st
: NULL
;
682 return (st
) ? &st
->iface
: NULL
;
685 static struct st_framebuffer
*
686 st_framebuffer_reuse_or_create(struct gl_framebuffer
*fb
,
687 struct st_framebuffer_iface
*stfbi
)
689 struct st_framebuffer
*cur
= st_ws_framebuffer(fb
), *stfb
= NULL
;
691 /* dummy framebuffers cant be used as st_framebuffer */
692 if (cur
&& &cur
->Base
!= _mesa_get_incomplete_framebuffer() &&
693 cur
->iface
== stfbi
) {
694 /* reuse the current stfb */
695 st_framebuffer_reference(&stfb
, cur
);
698 /* create a new one */
699 stfb
= st_framebuffer_create(stfbi
);
706 st_api_make_current(struct st_api
*stapi
, struct st_context_iface
*stctxi
,
707 struct st_framebuffer_iface
*stdrawi
,
708 struct st_framebuffer_iface
*streadi
)
710 struct st_context
*st
= (struct st_context
*) stctxi
;
711 struct st_framebuffer
*stdraw
, *stread
;
714 _glapi_check_multithread();
717 /* reuse or create the draw fb */
718 stdraw
= st_framebuffer_reuse_or_create(st
->ctx
->WinSysDrawBuffer
,
720 if (streadi
!= stdrawi
) {
721 /* do the same for the read fb */
722 stread
= st_framebuffer_reuse_or_create(st
->ctx
->WinSysReadBuffer
,
727 /* reuse the draw fb for the read fb */
729 st_framebuffer_reference(&stread
, stdraw
);
732 if (stdraw
&& stread
) {
733 st_framebuffer_validate(stdraw
, st
);
734 if (stread
!= stdraw
)
735 st_framebuffer_validate(stread
, st
);
737 ret
= _mesa_make_current(st
->ctx
, &stdraw
->Base
, &stread
->Base
);
739 st
->draw_stamp
= stdraw
->stamp
- 1;
740 st
->read_stamp
= stread
->stamp
- 1;
741 st_context_validate(st
, stdraw
, stread
);
744 struct gl_framebuffer
*incomplete
= _mesa_get_incomplete_framebuffer();
745 ret
= _mesa_make_current(st
->ctx
, incomplete
, incomplete
);
748 st_framebuffer_reference(&stdraw
, NULL
);
749 st_framebuffer_reference(&stread
, NULL
);
752 ret
= _mesa_make_current(NULL
, NULL
, NULL
);
759 st_api_get_proc_address(struct st_api
*stapi
, const char *procname
)
761 return (st_proc_t
) _glapi_get_proc_address(procname
);
765 st_api_destroy(struct st_api
*stapi
)
770 * Flush the front buffer if the current context renders to the front buffer.
773 st_manager_flush_frontbuffer(struct st_context
*st
)
775 struct st_framebuffer
*stfb
= st_ws_framebuffer(st
->ctx
->DrawBuffer
);
776 struct st_renderbuffer
*strb
= NULL
;
779 strb
= st_renderbuffer(stfb
->Base
.Attachment
[BUFFER_FRONT_LEFT
].Renderbuffer
);
783 /* never a dummy fb */
784 assert(&stfb
->Base
!= _mesa_get_incomplete_framebuffer());
785 stfb
->iface
->flush_front(stfb
->iface
, ST_ATTACHMENT_FRONT_LEFT
);
789 * Return the surface of an EGLImage.
790 * FIXME: I think this should operate on resources, not surfaces
792 struct pipe_surface
*
793 st_manager_get_egl_image_surface(struct st_context
*st
,
794 void *eglimg
, unsigned usage
)
796 struct st_manager
*smapi
=
797 (struct st_manager
*) st
->iface
.st_context_private
;
798 struct st_egl_image stimg
;
799 struct pipe_surface
*ps
, surf_tmpl
;
801 if (!smapi
|| !smapi
->get_egl_image
)
804 memset(&stimg
, 0, sizeof(stimg
));
805 if (!smapi
->get_egl_image(smapi
, eglimg
, &stimg
))
808 u_surface_default_template(&surf_tmpl
, stimg
.texture
, usage
);
809 surf_tmpl
.u
.tex
.level
= stimg
.level
;
810 surf_tmpl
.u
.tex
.first_layer
= stimg
.layer
;
811 surf_tmpl
.u
.tex
.last_layer
= stimg
.layer
;
812 ps
= st
->pipe
->create_surface(st
->pipe
, stimg
.texture
, &surf_tmpl
);
813 pipe_resource_reference(&stimg
.texture
, NULL
);
819 * Re-validate the framebuffers.
822 st_manager_validate_framebuffers(struct st_context
*st
)
824 struct st_framebuffer
*stdraw
= st_ws_framebuffer(st
->ctx
->DrawBuffer
);
825 struct st_framebuffer
*stread
= st_ws_framebuffer(st
->ctx
->ReadBuffer
);
828 st_framebuffer_validate(stdraw
, st
);
829 if (stread
&& stread
!= stdraw
)
830 st_framebuffer_validate(stread
, st
);
832 st_context_validate(st
, stdraw
, stread
);
836 * Add a color renderbuffer on demand.
839 st_manager_add_color_renderbuffer(struct st_context
*st
,
840 struct gl_framebuffer
*fb
,
843 struct st_framebuffer
*stfb
= st_ws_framebuffer(fb
);
849 if (stfb
->Base
.Attachment
[idx
].Renderbuffer
)
853 case BUFFER_FRONT_LEFT
:
854 case BUFFER_BACK_LEFT
:
855 case BUFFER_FRONT_RIGHT
:
856 case BUFFER_BACK_RIGHT
:
863 if (!st_framebuffer_add_renderbuffer(stfb
, idx
))
866 st_framebuffer_update_attachments(stfb
);
869 * Force a call to the state tracker manager to validate the
870 * new renderbuffer. It might be that there is a window system
871 * renderbuffer available.
874 stfb
->iface_stamp
= p_atomic_read(&stfb
->iface
->stamp
) - 1;
876 st_invalidate_state(st
->ctx
, _NEW_BUFFERS
);
881 static const struct st_api st_gl_api
= {
882 "Mesa " MESA_VERSION_STRING
,
885 ST_PROFILE_DEFAULT_MASK
|
888 ST_PROFILE_OPENGL_ES1_MASK
|
891 ST_PROFILE_OPENGL_ES2_MASK
|
895 st_api_get_proc_address
,
896 st_api_create_context
,
902 st_gl_api_create(void)
904 return (struct st_api
*) &st_gl_api
;