2 * Mesa 3-D graphics library
5 * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
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
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 #include "pipe/p_screen.h"
28 #include "util/u_memory.h"
29 #include "util/u_rect.h"
30 #include "egldriver.h"
31 #include "eglcurrent.h"
32 #include "eglconfigutil.h"
40 * Validate the draw/read surfaces of the context.
43 egl_g3d_validate_context(_EGLDisplay
*dpy
, _EGLContext
*ctx
)
45 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
46 struct pipe_screen
*screen
= gdpy
->native
->screen
;
47 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
48 const uint st_att_map
[NUM_NATIVE_ATTACHMENTS
] = {
49 ST_SURFACE_FRONT_LEFT
,
51 ST_SURFACE_FRONT_RIGHT
,
52 ST_SURFACE_BACK_RIGHT
,
54 EGLint num_surfaces
, s
;
56 /* validate draw and/or read buffers */
57 num_surfaces
= (gctx
->base
.ReadSurface
== gctx
->base
.DrawSurface
) ? 1 : 2;
58 for (s
= 0; s
< num_surfaces
; s
++) {
59 struct pipe_texture
*textures
[NUM_NATIVE_ATTACHMENTS
];
60 struct egl_g3d_surface
*gsurf
;
61 struct egl_g3d_buffer
*gbuf
;
65 gsurf
= egl_g3d_surface(gctx
->base
.DrawSurface
);
69 gsurf
= egl_g3d_surface(gctx
->base
.ReadSurface
);
73 if (!gctx
->force_validate
) {
76 gsurf
->native
->validate(gsurf
->native
, gbuf
->attachment_mask
,
77 &seq_num
, NULL
, NULL
, NULL
);
79 if (gsurf
->sequence_number
== seq_num
)
83 pipe_surface_reference(&gsurf
->render_surface
, NULL
);
84 memset(textures
, 0, sizeof(textures
));
86 gsurf
->native
->validate(gsurf
->native
, gbuf
->attachment_mask
,
87 &gsurf
->sequence_number
, textures
,
88 &gsurf
->base
.Width
, &gsurf
->base
.Height
);
89 for (att
= 0; att
< NUM_NATIVE_ATTACHMENTS
; att
++) {
90 struct pipe_texture
*pt
= textures
[att
];
91 struct pipe_surface
*ps
;
93 if (native_attachment_mask_test(gbuf
->attachment_mask
, att
) && pt
) {
94 ps
= screen
->get_tex_surface(screen
, pt
, 0, 0, 0,
95 PIPE_BUFFER_USAGE_GPU_READ
|
96 PIPE_BUFFER_USAGE_GPU_WRITE
);
97 gctx
->stapi
->st_set_framebuffer_surface(gbuf
->st_fb
,
100 if (gsurf
->render_att
== att
)
101 pipe_surface_reference(&gsurf
->render_surface
, ps
);
103 pipe_surface_reference(&ps
, NULL
);
104 pipe_texture_reference(&pt
, NULL
);
108 gctx
->stapi
->st_resize_framebuffer(gbuf
->st_fb
,
109 gsurf
->base
.Width
, gsurf
->base
.Height
);
112 gctx
->force_validate
= EGL_FALSE
;
117 * Create a st_framebuffer.
119 static struct st_framebuffer
*
120 create_framebuffer(_EGLContext
*ctx
, _EGLSurface
*surf
)
122 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
123 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
124 struct egl_g3d_config
*gconf
= egl_g3d_config(gsurf
->base
.Config
);
126 return gctx
->stapi
->st_create_framebuffer(&gconf
->native
->mode
,
127 gconf
->native
->color_format
, gconf
->native
->depth_format
,
128 gconf
->native
->stencil_format
,
129 gsurf
->base
.Width
, gsurf
->base
.Height
, &gsurf
->base
);
133 * Update the attachments of draw/read surfaces.
136 egl_g3d_route_context(_EGLDisplay
*dpy
, _EGLContext
*ctx
)
138 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
141 /* route draw and read buffers' attachments */
142 for (s
= 0; s
< 2; s
++) {
143 struct egl_g3d_surface
*gsurf
;
144 struct egl_g3d_buffer
*gbuf
;
147 gsurf
= egl_g3d_surface(gctx
->base
.DrawSurface
);
151 gsurf
= egl_g3d_surface(gctx
->base
.ReadSurface
);
155 gbuf
->attachment_mask
= (1 << gsurf
->render_att
);
157 /* FIXME OpenGL defaults to draw the front or back buffer when the
158 * context is single-buffered or double-buffered respectively. In EGL,
159 * however, the buffer to be drawn is determined by the surface, instead
160 * of the context. As a result, rendering to a pixmap surface with a
161 * double-buffered context does not work as expected.
163 * gctx->stapi->st_draw_front_buffer(gctx->st_ctx, natt ==
164 * NATIVE_ATTACHMENT_FRONT_LEFT);
168 * FIXME If the back buffer is asked for here, and the front buffer is
169 * later needed by the client API (e.g. glDrawBuffer is called to draw
170 * the front buffer), it will create a new pipe texture and draw there.
171 * One fix is to ask for both buffers here, but it would be a waste if
172 * the front buffer is never used. A better fix is to add a callback to
173 * the pipe screen with context private (just like flush_frontbuffer).
179 * Reallocate the context's framebuffers after draw/read surfaces change.
182 egl_g3d_realloc_context(_EGLDisplay
*dpy
, _EGLContext
*ctx
)
184 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
185 struct egl_g3d_surface
*gdraw
= egl_g3d_surface(gctx
->base
.DrawSurface
);
186 struct egl_g3d_surface
*gread
= egl_g3d_surface(gctx
->base
.ReadSurface
);
188 /* unreference the old framebuffers */
189 if (gctx
->draw
.st_fb
) {
190 EGLBoolean is_equal
= (gctx
->draw
.st_fb
== gctx
->read
.st_fb
);
193 priv
= gctx
->stapi
->st_framebuffer_private(gctx
->draw
.st_fb
);
194 if (!gdraw
|| priv
!= (void *) &gdraw
->base
) {
195 gctx
->stapi
->st_unreference_framebuffer(gctx
->draw
.st_fb
);
196 gctx
->draw
.st_fb
= NULL
;
197 gctx
->draw
.attachment_mask
= 0x0;
201 gctx
->read
.st_fb
= NULL
;
202 gctx
->draw
.attachment_mask
= 0x0;
205 priv
= gctx
->stapi
->st_framebuffer_private(gctx
->read
.st_fb
);
206 if (!gread
|| priv
!= (void *) &gread
->base
) {
207 gctx
->stapi
->st_unreference_framebuffer(gctx
->read
.st_fb
);
208 gctx
->read
.st_fb
= NULL
;
209 gctx
->draw
.attachment_mask
= 0x0;
217 /* create the draw fb */
218 if (!gctx
->draw
.st_fb
) {
219 gctx
->draw
.st_fb
= create_framebuffer(&gctx
->base
, &gdraw
->base
);
220 if (!gctx
->draw
.st_fb
)
224 /* create the read fb */
225 if (!gctx
->read
.st_fb
) {
226 if (gread
!= gdraw
) {
227 gctx
->read
.st_fb
= create_framebuffer(&gctx
->base
, &gread
->base
);
228 if (!gctx
->read
.st_fb
) {
229 gctx
->stapi
->st_unreference_framebuffer(gctx
->draw
.st_fb
);
230 gctx
->draw
.st_fb
= NULL
;
235 /* there is no st_reference_framebuffer... */
236 gctx
->read
.st_fb
= gctx
->draw
.st_fb
;
240 egl_g3d_route_context(dpy
, &gctx
->base
);
241 gctx
->force_validate
= EGL_TRUE
;
247 * Return the current context of the given API.
249 static struct egl_g3d_context
*
250 egl_g3d_get_current_context(EGLint api
)
252 _EGLThreadInfo
*t
= _eglGetCurrentThread();
253 EGLint api_index
= _eglConvertApiToIndex(api
);
254 return egl_g3d_context(t
->CurrentContexts
[api_index
]);
258 * Return the state tracker for the given context.
260 static const struct egl_g3d_st
*
261 egl_g3d_choose_st(_EGLDriver
*drv
, _EGLContext
*ctx
)
263 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
264 const struct egl_g3d_st
*stapi
;
267 switch (ctx
->ClientAPI
) {
268 case EGL_OPENGL_ES_API
:
269 switch (ctx
->ClientVersion
) {
271 idx
= EGL_G3D_ST_OPENGL_ES
;
274 idx
= EGL_G3D_ST_OPENGL_ES2
;
277 _eglLog(_EGL_WARNING
, "unknown client version %d",
283 idx
= EGL_G3D_ST_OPENVG
;
286 idx
= EGL_G3D_ST_OPENGL
;
289 _eglLog(_EGL_WARNING
, "unknown client API 0x%04x", ctx
->ClientAPI
);
293 stapi
= (idx
>= 0) ? gdrv
->stapis
[idx
] : NULL
;
298 * Initialize the state trackers.
301 egl_g3d_init_st(_EGLDriver
*drv
)
303 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
306 /* already initialized */
310 for (i
= 0; i
< NUM_EGL_G3D_STS
; i
++) {
311 gdrv
->stapis
[i
] = egl_g3d_get_st(i
);
313 gdrv
->api_mask
|= gdrv
->stapis
[i
]->api_bit
;
317 _eglLog(_EGL_DEBUG
, "Driver API mask: 0x%x", gdrv
->api_mask
);
319 _eglLog(_EGL_WARNING
, "No supported client API");
323 * Get the probe object of the display.
325 * Note that this function may be called before the display is initialized.
327 static struct native_probe
*
328 egl_g3d_get_probe(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
330 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
331 struct native_probe
*nprobe
;
333 nprobe
= (struct native_probe
*) _eglGetProbeCache(gdrv
->probe_key
);
334 if (!nprobe
|| nprobe
->display
!= dpy
->NativeDisplay
) {
336 nprobe
->destroy(nprobe
);
337 nprobe
= native_create_probe(dpy
->NativeDisplay
);
338 _eglSetProbeCache(gdrv
->probe_key
, (void *) nprobe
);
345 * Destroy the probe object of the display. The display may be NULL.
347 * Note that this function may be called before the display is initialized.
350 egl_g3d_destroy_probe(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
352 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
353 struct native_probe
*nprobe
;
355 nprobe
= (struct native_probe
*) _eglGetProbeCache(gdrv
->probe_key
);
356 if (nprobe
&& (!dpy
|| nprobe
->display
== dpy
->NativeDisplay
)) {
357 nprobe
->destroy(nprobe
);
358 _eglSetProbeCache(gdrv
->probe_key
, NULL
);
363 * Return an API mask that consists of the state trackers that supports the
366 * FIXME add st_is_mode_supported()?
369 get_mode_api_mask(const __GLcontextModes
*mode
, EGLint api_mask
)
373 /* OpenGL ES 1.x and 2.x are checked together */
374 check
= EGL_OPENGL_ES_BIT
| EGL_OPENGL_ES2_BIT
;
375 if (api_mask
& check
) {
376 /* this is required by EGL, not by OpenGL ES */
377 if (mode
->drawableType
& GLX_WINDOW_BIT
&& !mode
->doubleBufferMode
)
381 check
= EGL_OPENVG_BIT
;
382 if (api_mask
& check
) {
383 /* vega st needs the depth/stencil rb */
384 if (!mode
->depthBits
&& !mode
->stencilBits
)
391 #ifdef EGL_MESA_screen_surface
394 egl_g3d_add_screens(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
396 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
397 const struct native_connector
**native_connectors
;
398 EGLint num_connectors
, i
;
401 gdpy
->native
->modeset
->get_connectors(gdpy
->native
, &num_connectors
, NULL
);
402 if (!num_connectors
) {
403 if (native_connectors
)
404 free(native_connectors
);
408 for (i
= 0; i
< num_connectors
; i
++) {
409 const struct native_connector
*nconn
= native_connectors
[i
];
410 struct egl_g3d_screen
*gscr
;
411 const struct native_mode
**native_modes
;
414 /* TODO support for hotplug */
416 gdpy
->native
->modeset
->get_modes(gdpy
->native
, nconn
, &num_modes
);
423 gscr
= CALLOC_STRUCT(egl_g3d_screen
);
429 _eglInitScreen(&gscr
->base
);
431 for (j
= 0; j
< num_modes
; j
++) {
432 const struct native_mode
*nmode
= native_modes
[j
];
435 mode
= _eglAddNewMode(&gscr
->base
, nmode
->width
, nmode
->height
,
436 nmode
->refresh_rate
, nmode
->desc
);
439 /* gscr->native_modes and gscr->base.Modes should be consistent */
440 assert(mode
== &gscr
->base
.Modes
[j
]);
443 gscr
->native
= nconn
;
444 gscr
->native_modes
= native_modes
;
446 _eglAddScreen(dpy
, &gscr
->base
);
449 free(native_connectors
);
452 #endif /* EGL_MESA_screen_surface */
455 * Add configs to display and return the next config ID.
458 egl_g3d_add_configs(_EGLDriver
*drv
, _EGLDisplay
*dpy
, EGLint id
)
460 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
461 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
462 const struct native_config
**native_configs
;
465 native_configs
= gdpy
->native
->get_configs(gdpy
->native
,
469 free(native_configs
);
473 for (i
= 0; i
< num_configs
; i
++) {
475 struct egl_g3d_config
*gconf
;
478 api_mask
= get_mode_api_mask(&native_configs
[i
]->mode
, gdrv
->api_mask
);
480 _eglLog(_EGL_DEBUG
, "no state tracker supports config 0x%x",
481 native_configs
[i
]->mode
.visualID
);
485 gconf
= CALLOC_STRUCT(egl_g3d_config
);
489 _eglInitConfig(&gconf
->base
, id
);
490 valid
= _eglConfigFromContextModesRec(&gconf
->base
,
491 &native_configs
[i
]->mode
, api_mask
, api_mask
);
493 #ifdef EGL_MESA_screen_surface
494 /* check if scanout surface bit is set */
495 if (native_configs
[i
]->scanout_bit
) {
496 EGLint val
= GET_CONFIG_ATTRIB(&gconf
->base
, EGL_SURFACE_TYPE
);
497 val
|= EGL_SCREEN_BIT_MESA
;
498 SET_CONFIG_ATTRIB(&gconf
->base
, EGL_SURFACE_TYPE
, val
);
501 valid
= _eglValidateConfig(&gconf
->base
, EGL_FALSE
);
504 _eglLog(_EGL_DEBUG
, "skip invalid config 0x%x",
505 native_configs
[i
]->mode
.visualID
);
510 gconf
->native
= native_configs
[i
];
511 _eglAddConfig(dpy
, &gconf
->base
);
515 free(native_configs
);
520 * Flush the front buffer of the context's draw surface.
523 egl_g3d_flush_frontbuffer(struct pipe_screen
*screen
,
524 struct pipe_surface
*surf
, void *context_private
)
526 struct egl_g3d_context
*gctx
= egl_g3d_context(context_private
);
527 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(gctx
->base
.DrawSurface
);
530 gsurf
->native
->flush_frontbuffer(gsurf
->native
);
534 * Re-validate the context.
537 egl_g3d_update_buffer(struct pipe_screen
*screen
, void *context_private
)
539 struct egl_g3d_context
*gctx
= egl_g3d_context(context_private
);
542 * It is likely that the surface has changed when this function is called.
543 * Set force_validate to skip an unnecessary check.
545 gctx
->force_validate
= EGL_TRUE
;
546 egl_g3d_validate_context(gctx
->base
.Resource
.Display
, &gctx
->base
);
550 egl_g3d_terminate(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
552 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
555 _eglReleaseDisplayResources(drv
, dpy
);
556 _eglCleanupDisplay(dpy
);
559 for (i
= 0; i
< dpy
->NumScreens
; i
++) {
560 struct egl_g3d_screen
*gscr
= egl_g3d_screen(dpy
->Screens
[i
]);
561 free(gscr
->native_modes
);
568 gdpy
->native
->destroy(gdpy
->native
);
571 dpy
->DriverData
= NULL
;
577 egl_g3d_initialize(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
578 EGLint
*major
, EGLint
*minor
)
580 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
581 struct egl_g3d_display
*gdpy
;
583 /* the probe object is unlikely to be needed again */
584 egl_g3d_destroy_probe(drv
, dpy
);
586 gdpy
= CALLOC_STRUCT(egl_g3d_display
);
588 _eglError(EGL_BAD_ALLOC
, "eglInitialize");
591 dpy
->DriverData
= gdpy
;
593 gdpy
->native
= native_create_display(dpy
->NativeDisplay
);
595 _eglError(EGL_NOT_INITIALIZED
, "eglInitialize(no usable display)");
599 gdpy
->native
->screen
->flush_frontbuffer
= egl_g3d_flush_frontbuffer
;
600 gdpy
->native
->screen
->update_buffer
= egl_g3d_update_buffer
;
602 egl_g3d_init_st(&gdrv
->base
);
603 dpy
->ClientAPIsMask
= gdrv
->api_mask
;
605 if (egl_g3d_add_configs(drv
, dpy
, 1) == 1) {
606 _eglError(EGL_NOT_INITIALIZED
, "eglInitialize(unable to add configs)");
610 #ifdef EGL_MESA_screen_surface
611 /* enable MESA_screen_surface */
612 if (gdpy
->native
->modeset
) {
613 dpy
->Extensions
.MESA_screen_surface
= EGL_TRUE
;
614 egl_g3d_add_screens(drv
, dpy
);
625 egl_g3d_terminate(drv
, dpy
);
630 egl_g3d_create_context(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLConfig
*conf
,
631 _EGLContext
*share
, const EGLint
*attribs
)
633 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
634 struct egl_g3d_context
*gshare
= egl_g3d_context(share
);
635 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
636 struct egl_g3d_context
*gctx
;
637 const __GLcontextModes
*mode
;
639 gctx
= CALLOC_STRUCT(egl_g3d_context
);
641 _eglError(EGL_BAD_ALLOC
, "eglCreateContext");
645 if (!_eglInitContext(drv
, &gctx
->base
, conf
, attribs
)) {
650 gctx
->stapi
= egl_g3d_choose_st(drv
, &gctx
->base
);
656 mode
= &gconf
->native
->mode
;
658 gdpy
->native
->create_context(gdpy
->native
, (void *) &gctx
->base
);
664 gctx
->st_ctx
= gctx
->stapi
->st_create_context(gctx
->pipe
, mode
,
665 (gshare
) ? gshare
->st_ctx
: NULL
);
667 gctx
->pipe
->destroy(gctx
->pipe
);
679 destroy_context(_EGLDisplay
*dpy
, _EGLContext
*ctx
)
681 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
683 /* FIXME a context might live longer than its display */
684 if (!dpy
->Initialized
)
685 _eglLog(_EGL_FATAL
, "destroy a context with an unitialized display");
687 egl_g3d_realloc_context(dpy
, &gctx
->base
);
688 /* it will destroy the associated pipe context */
689 gctx
->stapi
->st_destroy_context(gctx
->st_ctx
);
695 egl_g3d_destroy_context(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLContext
*ctx
)
697 if (!_eglIsContextBound(ctx
))
698 destroy_context(dpy
, ctx
);
703 init_surface_geometry(_EGLSurface
*surf
)
705 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
707 return gsurf
->native
->validate(gsurf
->native
, 0x0,
708 &gsurf
->sequence_number
, NULL
,
709 &gsurf
->base
.Width
, &gsurf
->base
.Height
);
713 egl_g3d_create_window_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
714 _EGLConfig
*conf
, EGLNativeWindowType win
,
715 const EGLint
*attribs
)
717 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
718 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
719 struct egl_g3d_surface
*gsurf
;
721 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
723 _eglError(EGL_BAD_ALLOC
, "eglCreateWindowSurface");
727 if (!_eglInitSurface(drv
, &gsurf
->base
, EGL_WINDOW_BIT
, conf
, attribs
)) {
733 gdpy
->native
->create_window_surface(gdpy
->native
, win
, gconf
->native
);
734 if (!gsurf
->native
) {
739 if (!init_surface_geometry(&gsurf
->base
)) {
740 gsurf
->native
->destroy(gsurf
->native
);
745 gsurf
->render_att
= (gsurf
->base
.RenderBuffer
== EGL_SINGLE_BUFFER
||
746 !gconf
->native
->mode
.doubleBufferMode
) ?
747 NATIVE_ATTACHMENT_FRONT_LEFT
: NATIVE_ATTACHMENT_BACK_LEFT
;
753 egl_g3d_create_pixmap_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
754 _EGLConfig
*conf
, EGLNativePixmapType pix
,
755 const EGLint
*attribs
)
757 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
758 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
759 struct egl_g3d_surface
*gsurf
;
761 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
763 _eglError(EGL_BAD_ALLOC
, "eglCreatePixmapSurface");
767 if (!_eglInitSurface(drv
, &gsurf
->base
, EGL_PIXMAP_BIT
, conf
, attribs
)) {
773 gdpy
->native
->create_pixmap_surface(gdpy
->native
, pix
, gconf
->native
);
774 if (!gsurf
->native
) {
779 if (!init_surface_geometry(&gsurf
->base
)) {
780 gsurf
->native
->destroy(gsurf
->native
);
785 gsurf
->render_att
= NATIVE_ATTACHMENT_FRONT_LEFT
;
791 egl_g3d_create_pbuffer_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
792 _EGLConfig
*conf
, const EGLint
*attribs
)
794 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
795 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
796 struct egl_g3d_surface
*gsurf
;
798 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
800 _eglError(EGL_BAD_ALLOC
, "eglCreatePbufferSurface");
804 if (!_eglInitSurface(drv
, &gsurf
->base
, EGL_PBUFFER_BIT
, conf
, attribs
)) {
810 gdpy
->native
->create_pbuffer_surface(gdpy
->native
, gconf
->native
,
811 gsurf
->base
.Width
, gsurf
->base
.Height
);
812 if (!gsurf
->native
) {
817 if (!init_surface_geometry(&gsurf
->base
)) {
818 gsurf
->native
->destroy(gsurf
->native
);
823 gsurf
->render_att
= (!gconf
->native
->mode
.doubleBufferMode
) ?
824 NATIVE_ATTACHMENT_FRONT_LEFT
: NATIVE_ATTACHMENT_BACK_LEFT
;
833 destroy_surface(_EGLDisplay
*dpy
, _EGLSurface
*surf
)
835 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
837 /* FIXME a surface might live longer than its display */
838 if (!dpy
->Initialized
)
839 _eglLog(_EGL_FATAL
, "destroy a surface with an unitialized display");
841 pipe_surface_reference(&gsurf
->render_surface
, NULL
);
842 gsurf
->native
->destroy(gsurf
->native
);
847 egl_g3d_destroy_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
)
849 if (!_eglIsSurfaceBound(surf
))
850 destroy_surface(dpy
, surf
);
855 egl_g3d_make_current(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
856 _EGLSurface
*draw
, _EGLSurface
*read
, _EGLContext
*ctx
)
858 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
859 struct egl_g3d_surface
*gdraw
= egl_g3d_surface(draw
);
860 struct egl_g3d_context
*old_gctx
;
861 EGLBoolean ok
= EGL_TRUE
;
863 /* bind the new context and return the "orphaned" one */
864 if (!_eglBindContext(&ctx
, &draw
, &read
))
866 old_gctx
= egl_g3d_context(ctx
);
869 /* flush old context */
870 old_gctx
->stapi
->st_flush(old_gctx
->st_ctx
,
871 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
, NULL
);
874 * The old context is no longer current, and egl_g3d_realloc_context()
875 * should be called to destroy the framebuffers. However, it is possible
876 * that it will be made current again with the same draw/read surfaces.
877 * It might be better to keep it around.
882 ok
= egl_g3d_realloc_context(dpy
, &gctx
->base
);
884 ok
= gctx
->stapi
->st_make_current(gctx
->st_ctx
,
885 gctx
->draw
.st_fb
, gctx
->read
.st_fb
);
887 egl_g3d_validate_context(dpy
, &gctx
->base
);
888 if (gdraw
->base
.Type
== EGL_WINDOW_BIT
) {
889 gctx
->base
.WindowRenderBuffer
=
890 (gdraw
->render_att
== NATIVE_ATTACHMENT_FRONT_LEFT
) ?
891 EGL_SINGLE_BUFFER
: EGL_BACK_BUFFER
;
897 ok
= old_gctx
->stapi
->st_make_current(NULL
, NULL
, NULL
);
898 old_gctx
->base
.WindowRenderBuffer
= EGL_NONE
;
901 if (ctx
&& !_eglIsContextLinked(ctx
))
902 destroy_context(dpy
, ctx
);
903 if (draw
&& !_eglIsSurfaceLinked(draw
))
904 destroy_surface(dpy
, draw
);
905 if (read
&& read
!= draw
&& !_eglIsSurfaceLinked(read
))
906 destroy_surface(dpy
, read
);
912 egl_g3d_swap_buffers(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
)
914 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
915 _EGLContext
*ctx
= _eglGetCurrentContext();
916 struct egl_g3d_context
*gctx
= NULL
;
918 /* no-op for pixmap or pbuffer surface */
919 if (gsurf
->base
.Type
== EGL_PIXMAP_BIT
||
920 gsurf
->base
.Type
== EGL_PBUFFER_BIT
)
923 /* or when the surface is single-buffered */
924 if (gsurf
->render_att
== NATIVE_ATTACHMENT_FRONT_LEFT
)
927 if (ctx
&& ctx
->DrawSurface
== surf
)
928 gctx
= egl_g3d_context(ctx
);
930 /* flush if the surface is current */
932 gctx
->stapi
->st_notify_swapbuffers(gctx
->draw
.st_fb
);
935 * We drew on the back buffer, unless there was no back buffer.
936 * In that case, we drew on the front buffer. Either case, we call
939 if (!gsurf
->native
->swap_buffers(gsurf
->native
))
943 struct egl_g3d_config
*gconf
= egl_g3d_config(gsurf
->base
.Config
);
945 /* force validation if the swap method is not copy */
946 if (gconf
->native
->mode
.swapMethod
!= GLX_SWAP_COPY_OML
) {
947 gctx
->force_validate
= EGL_TRUE
;
948 egl_g3d_validate_context(dpy
, &gctx
->base
);
956 * Find a config that supports the pixmap.
959 find_pixmap_config(_EGLDisplay
*dpy
, EGLNativePixmapType pix
)
961 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
962 struct egl_g3d_config
*gconf
;
965 for (i
= 0; i
< dpy
->NumConfigs
; i
++) {
966 gconf
= egl_g3d_config(dpy
->Configs
[i
]);
967 if (gdpy
->native
->is_pixmap_supported(gdpy
->native
, pix
, gconf
->native
))
971 return (i
< dpy
->NumConfigs
) ? &gconf
->base
: NULL
;
975 * Get the pipe surface of the given attachment of the native surface.
977 static struct pipe_surface
*
978 get_pipe_surface(struct native_display
*ndpy
, struct native_surface
*nsurf
,
979 enum native_attachment natt
)
981 struct pipe_texture
*textures
[NUM_NATIVE_ATTACHMENTS
];
982 struct pipe_surface
*psurf
;
984 textures
[natt
] = NULL
;
985 nsurf
->validate(nsurf
, 1 << natt
, NULL
, textures
, NULL
, NULL
);
989 psurf
= ndpy
->screen
->get_tex_surface(ndpy
->screen
, textures
[natt
],
990 0, 0, 0, PIPE_BUFFER_USAGE_CPU_WRITE
);
991 pipe_texture_reference(&textures
[natt
], NULL
);
997 egl_g3d_copy_buffers(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
,
998 EGLNativePixmapType target
)
1000 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
1001 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1002 _EGLContext
*ctx
= _eglGetCurrentContext();
1003 struct egl_g3d_config
*gconf
;
1004 struct native_surface
*nsurf
;
1005 struct pipe_screen
*screen
= gdpy
->native
->screen
;
1006 struct pipe_surface
*psurf
;
1008 if (!gsurf
->render_surface
)
1011 gconf
= egl_g3d_config(find_pixmap_config(dpy
, target
));
1013 return _eglError(EGL_BAD_NATIVE_PIXMAP
, "eglCopyBuffers");
1015 nsurf
= gdpy
->native
->create_pixmap_surface(gdpy
->native
,
1016 target
, gconf
->native
);
1018 return _eglError(EGL_BAD_NATIVE_PIXMAP
, "eglCopyBuffers");
1020 /* flush if the surface is current */
1021 if (ctx
&& ctx
->DrawSurface
== &gsurf
->base
) {
1022 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
1023 gctx
->stapi
->st_flush(gctx
->st_ctx
,
1024 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
, NULL
);
1027 psurf
= get_pipe_surface(gdpy
->native
, nsurf
, NATIVE_ATTACHMENT_FRONT_LEFT
);
1029 struct pipe_context pipe
;
1032 * XXX This is hacky. If we might allow the EGLDisplay to create a pipe
1033 * context of its own and use the blitter context for this.
1035 memset(&pipe
, 0, sizeof(pipe
));
1036 pipe
.screen
= screen
;
1038 util_surface_copy(&pipe
, FALSE
, psurf
, 0, 0,
1039 gsurf
->render_surface
, 0, 0, psurf
->width
, psurf
->height
);
1041 pipe_surface_reference(&psurf
, NULL
);
1042 nsurf
->flush_frontbuffer(nsurf
);
1045 nsurf
->destroy(nsurf
);
1051 egl_g3d_wait_client(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLContext
*ctx
)
1053 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
1054 gctx
->stapi
->st_finish(gctx
->st_ctx
);
1059 egl_g3d_wait_native(_EGLDriver
*drv
, _EGLDisplay
*dpy
, EGLint engine
)
1061 _EGLContext
*ctx
= _eglGetCurrentContext();
1063 if (engine
!= EGL_CORE_NATIVE_ENGINE
)
1064 return _eglError(EGL_BAD_PARAMETER
, "eglWaitNative");
1066 if (ctx
&& ctx
->DrawSurface
) {
1067 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(ctx
->DrawSurface
);
1068 gsurf
->native
->wait(gsurf
->native
);
1075 egl_g3d_get_proc_address(_EGLDriver
*drv
, const char *procname
)
1077 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
1081 /* in case this is called before a display is initialized */
1082 egl_g3d_init_st(&gdrv
->base
);
1084 for (i
= 0; i
< NUM_EGL_G3D_STS
; i
++) {
1085 const struct egl_g3d_st
*stapi
= gdrv
->stapis
[i
];
1087 proc
= (_EGLProc
) stapi
->st_get_proc_address(procname
);
1093 return (_EGLProc
) NULL
;
1097 egl_g3d_bind_tex_image(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1098 _EGLSurface
*surf
, EGLint buffer
)
1100 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1101 struct egl_g3d_context
*gctx
;
1102 enum pipe_format target_format
;
1105 if (!gsurf
|| gsurf
->base
.Type
!= EGL_PBUFFER_BIT
)
1106 return _eglError(EGL_BAD_SURFACE
, "eglBindTexImage");
1107 if (buffer
!= EGL_BACK_BUFFER
)
1108 return _eglError(EGL_BAD_PARAMETER
, "eglBindTexImage");
1109 if (gsurf
->base
.BoundToTexture
)
1110 return _eglError(EGL_BAD_ACCESS
, "eglBindTexImage");
1112 switch (gsurf
->base
.TextureFormat
) {
1113 case EGL_TEXTURE_RGB
:
1114 target_format
= PIPE_FORMAT_R8G8B8_UNORM
;
1116 case EGL_TEXTURE_RGBA
:
1117 target_format
= PIPE_FORMAT_A8R8G8B8_UNORM
;
1120 return _eglError(EGL_BAD_MATCH
, "eglBindTexImage");
1123 switch (gsurf
->base
.TextureTarget
) {
1124 case EGL_TEXTURE_2D
:
1125 target
= ST_TEXTURE_2D
;
1128 return _eglError(EGL_BAD_MATCH
, "eglBindTexImage");
1131 /* flush properly if the surface is bound */
1132 if (gsurf
->base
.Binding
) {
1133 gctx
= egl_g3d_context(gsurf
->base
.Binding
);
1134 gctx
->stapi
->st_flush(gctx
->st_ctx
,
1135 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
, NULL
);
1138 /* XXX change to EGL_OPENGL_ES_API once OpenGL ES is merged */
1139 gctx
= egl_g3d_get_current_context(EGL_OPENGL_API
);
1141 if (!gsurf
->render_surface
)
1144 gctx
->stapi
->st_bind_texture_surface(gsurf
->render_surface
,
1145 target
, gsurf
->base
.MipmapLevel
, target_format
);
1146 gsurf
->base
.BoundToTexture
= EGL_TRUE
;
1153 egl_g3d_release_tex_image(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1154 _EGLSurface
*surf
, EGLint buffer
)
1156 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1158 if (!gsurf
|| gsurf
->base
.Type
!= EGL_PBUFFER_BIT
||
1159 !gsurf
->base
.BoundToTexture
)
1160 return _eglError(EGL_BAD_SURFACE
, "eglReleaseTexImage");
1161 if (buffer
!= EGL_BACK_BUFFER
)
1162 return _eglError(EGL_BAD_PARAMETER
, "eglReleaseTexImage");
1164 if (gsurf
->render_surface
) {
1165 _EGLThreadInfo
*t
= _eglGetCurrentThread();
1166 /* XXX change to EGL_OPENGL_ES_API once OpenGL ES is merged */
1167 struct egl_g3d_context
*gctx
= egl_g3d_context(
1168 t
->CurrentContexts
[_eglConvertApiToIndex(EGL_OPENGL_API
)]);
1170 /* what if the context the surface binds to is no longer current? */
1172 gctx
->stapi
->st_unbind_texture_surface(gsurf
->render_surface
,
1173 ST_TEXTURE_2D
, gsurf
->base
.MipmapLevel
);
1176 gsurf
->base
.BoundToTexture
= EGL_FALSE
;
1181 #ifdef EGL_MESA_screen_surface
1183 static _EGLSurface
*
1184 egl_g3d_create_screen_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1185 _EGLConfig
*conf
, const EGLint
*attribs
)
1187 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
1188 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
1189 struct egl_g3d_surface
*gsurf
;
1191 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
1193 _eglError(EGL_BAD_ALLOC
, "eglCreatePbufferSurface");
1197 if (!_eglInitSurface(drv
, &gsurf
->base
,
1198 EGL_SCREEN_BIT_MESA
, conf
, attribs
)) {
1204 gdpy
->native
->modeset
->create_scanout_surface(gdpy
->native
,
1205 gconf
->native
, gsurf
->base
.Width
, gsurf
->base
.Height
);
1206 if (!gsurf
->native
) {
1211 gsurf
->render_att
= (!gconf
->native
->mode
.doubleBufferMode
) ?
1212 NATIVE_ATTACHMENT_FRONT_LEFT
: NATIVE_ATTACHMENT_BACK_LEFT
;
1214 return &gsurf
->base
;
1218 egl_g3d_show_screen_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1219 _EGLScreen
*scr
, _EGLSurface
*surf
,
1222 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
1223 struct egl_g3d_screen
*gscr
= egl_g3d_screen(scr
);
1224 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1225 struct native_surface
*nsurf
;
1226 const struct native_mode
*nmode
;
1233 return _eglError(EGL_BAD_MATCH
, "eglShowSurfaceMESA");
1234 if (gsurf
->base
.Type
!= EGL_SCREEN_BIT_MESA
)
1235 return _eglError(EGL_BAD_SURFACE
, "eglShowScreenSurfaceMESA");
1236 if (gsurf
->base
.Width
< mode
->Width
|| gsurf
->base
.Height
< mode
->Height
)
1237 return _eglError(EGL_BAD_MATCH
,
1238 "eglShowSurfaceMESA(surface smaller than mode size)");
1240 /* find the index of the mode */
1241 for (idx
= 0; idx
< gscr
->base
.NumModes
; idx
++)
1242 if (mode
== &gscr
->base
.Modes
[idx
])
1244 if (idx
>= gscr
->base
.NumModes
) {
1245 return _eglError(EGL_BAD_MODE_MESA
,
1246 "eglShowSurfaceMESA(unknown mode)");
1249 nsurf
= gsurf
->native
;
1250 nmode
= gscr
->native_modes
[idx
];
1254 return _eglError(EGL_BAD_MATCH
, "eglShowSurfaceMESA");
1256 /* disable the screen */
1261 /* TODO surface panning by CRTC choosing */
1262 changed
= gdpy
->native
->modeset
->program(gdpy
->native
, 0, nsurf
,
1263 gscr
->base
.OriginX
, gscr
->base
.OriginY
, &gscr
->native
, 1, nmode
);
1265 gscr
->base
.CurrentSurface
= &gsurf
->base
;
1266 gscr
->base
.CurrentMode
= mode
;
1272 #endif /* EGL_MESA_screen_surface */
1275 egl_g3d_probe(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
1277 struct native_probe
*nprobe
;
1278 enum native_probe_result res
;
1281 nprobe
= egl_g3d_get_probe(drv
, dpy
);
1282 res
= native_get_probe_result(nprobe
);
1285 case NATIVE_PROBE_UNKNOWN
:
1289 case NATIVE_PROBE_FALLBACK
:
1292 case NATIVE_PROBE_SUPPORTED
:
1295 case NATIVE_PROBE_EXACT
:
1304 egl_g3d_unload(_EGLDriver
*drv
)
1306 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
1308 egl_g3d_destroy_probe(drv
, NULL
);
1313 _eglMain(const char *args
)
1315 static char driver_name
[64];
1316 struct egl_g3d_driver
*gdrv
;
1318 snprintf(driver_name
, sizeof(driver_name
),
1319 "Gallium/%s", native_get_name());
1321 gdrv
= CALLOC_STRUCT(egl_g3d_driver
);
1325 _eglInitDriverFallbacks(&gdrv
->base
);
1327 gdrv
->base
.API
.Initialize
= egl_g3d_initialize
;
1328 gdrv
->base
.API
.Terminate
= egl_g3d_terminate
;
1329 gdrv
->base
.API
.CreateContext
= egl_g3d_create_context
;
1330 gdrv
->base
.API
.DestroyContext
= egl_g3d_destroy_context
;
1331 gdrv
->base
.API
.CreateWindowSurface
= egl_g3d_create_window_surface
;
1332 gdrv
->base
.API
.CreatePixmapSurface
= egl_g3d_create_pixmap_surface
;
1333 gdrv
->base
.API
.CreatePbufferSurface
= egl_g3d_create_pbuffer_surface
;
1334 gdrv
->base
.API
.DestroySurface
= egl_g3d_destroy_surface
;
1335 gdrv
->base
.API
.MakeCurrent
= egl_g3d_make_current
;
1336 gdrv
->base
.API
.SwapBuffers
= egl_g3d_swap_buffers
;
1337 gdrv
->base
.API
.CopyBuffers
= egl_g3d_copy_buffers
;
1338 gdrv
->base
.API
.WaitClient
= egl_g3d_wait_client
;
1339 gdrv
->base
.API
.WaitNative
= egl_g3d_wait_native
;
1340 gdrv
->base
.API
.GetProcAddress
= egl_g3d_get_proc_address
;
1342 gdrv
->base
.API
.BindTexImage
= egl_g3d_bind_tex_image
;
1343 gdrv
->base
.API
.ReleaseTexImage
= egl_g3d_release_tex_image
;
1345 #ifdef EGL_MESA_screen_surface
1346 gdrv
->base
.API
.CreateScreenSurfaceMESA
= egl_g3d_create_screen_surface
;
1347 gdrv
->base
.API
.ShowScreenSurfaceMESA
= egl_g3d_show_screen_surface
;
1350 gdrv
->base
.Name
= driver_name
;
1351 gdrv
->base
.Probe
= egl_g3d_probe
;
1352 gdrv
->base
.Unload
= egl_g3d_unload
;
1354 /* the key is " EGL G3D" */
1355 gdrv
->probe_key
= 0x0E61063D;