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 state tracker for the given context.
249 static const struct egl_g3d_st
*
250 egl_g3d_choose_st(_EGLDriver
*drv
, _EGLContext
*ctx
)
252 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
253 const struct egl_g3d_st
*stapi
;
256 switch (ctx
->ClientAPI
) {
257 case EGL_OPENGL_ES_API
:
258 switch (ctx
->ClientVersion
) {
260 idx
= EGL_G3D_ST_OPENGL_ES
;
263 idx
= EGL_G3D_ST_OPENGL_ES2
;
266 _eglLog(_EGL_WARNING
, "unknown client version %d",
272 idx
= EGL_G3D_ST_OPENVG
;
275 idx
= EGL_G3D_ST_OPENGL
;
278 _eglLog(_EGL_WARNING
, "unknown client API 0x%04x", ctx
->ClientAPI
);
282 stapi
= (idx
>= 0) ? gdrv
->stapis
[idx
] : NULL
;
287 * Initialize the state trackers.
290 egl_g3d_init_st(_EGLDriver
*drv
)
292 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
295 /* already initialized */
299 for (i
= 0; i
< NUM_EGL_G3D_STS
; i
++) {
300 gdrv
->stapis
[i
] = egl_g3d_get_st(i
);
302 gdrv
->api_mask
|= gdrv
->stapis
[i
]->api_bit
;
306 _eglLog(_EGL_DEBUG
, "Driver API mask: 0x%x", gdrv
->api_mask
);
308 _eglLog(_EGL_WARNING
, "No supported client API");
312 * Get the probe object of the display.
314 * Note that this function may be called before the display is initialized.
316 static struct native_probe
*
317 egl_g3d_get_probe(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
319 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
320 struct native_probe
*nprobe
;
322 nprobe
= (struct native_probe
*) _eglGetProbeCache(gdrv
->probe_key
);
323 if (!nprobe
|| nprobe
->display
!= dpy
->NativeDisplay
) {
325 nprobe
->destroy(nprobe
);
326 nprobe
= native_create_probe(dpy
->NativeDisplay
);
327 _eglSetProbeCache(gdrv
->probe_key
, (void *) nprobe
);
334 * Destroy the probe object of the display. The display may be NULL.
336 * Note that this function may be called before the display is initialized.
339 egl_g3d_destroy_probe(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
341 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
342 struct native_probe
*nprobe
;
344 nprobe
= (struct native_probe
*) _eglGetProbeCache(gdrv
->probe_key
);
345 if (nprobe
&& (!dpy
|| nprobe
->display
== dpy
->NativeDisplay
)) {
346 nprobe
->destroy(nprobe
);
347 _eglSetProbeCache(gdrv
->probe_key
, NULL
);
352 * Return an API mask that consists of the state trackers that supports the
355 * FIXME add st_is_mode_supported()?
358 get_mode_api_mask(const __GLcontextModes
*mode
, EGLint api_mask
)
362 /* OpenGL ES 1.x and 2.x are checked together */
363 check
= EGL_OPENGL_ES_BIT
| EGL_OPENGL_ES2_BIT
;
364 if (api_mask
& check
) {
365 /* this is required by EGL, not by OpenGL ES */
366 if (mode
->drawableType
& GLX_WINDOW_BIT
&& !mode
->doubleBufferMode
)
370 check
= EGL_OPENVG_BIT
;
371 if (api_mask
& check
) {
372 /* vega st needs the depth/stencil rb */
373 if (!mode
->depthBits
&& !mode
->stencilBits
)
380 #ifdef EGL_MESA_screen_surface
383 egl_g3d_add_screens(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
385 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
386 const struct native_connector
**native_connectors
;
387 EGLint num_connectors
, i
;
390 gdpy
->native
->modeset
->get_connectors(gdpy
->native
, &num_connectors
, NULL
);
391 if (!num_connectors
) {
392 if (native_connectors
)
393 free(native_connectors
);
397 for (i
= 0; i
< num_connectors
; i
++) {
398 const struct native_connector
*nconn
= native_connectors
[i
];
399 struct egl_g3d_screen
*gscr
;
400 const struct native_mode
**native_modes
;
403 /* TODO support for hotplug */
405 gdpy
->native
->modeset
->get_modes(gdpy
->native
, nconn
, &num_modes
);
412 gscr
= CALLOC_STRUCT(egl_g3d_screen
);
418 _eglInitScreen(&gscr
->base
);
420 for (j
= 0; j
< num_modes
; j
++) {
421 const struct native_mode
*nmode
= native_modes
[j
];
424 mode
= _eglAddNewMode(&gscr
->base
, nmode
->width
, nmode
->height
,
425 nmode
->refresh_rate
, nmode
->desc
);
428 /* gscr->native_modes and gscr->base.Modes should be consistent */
429 assert(mode
== &gscr
->base
.Modes
[j
]);
432 gscr
->native
= nconn
;
433 gscr
->native_modes
= native_modes
;
435 _eglAddScreen(dpy
, &gscr
->base
);
438 free(native_connectors
);
441 #endif /* EGL_MESA_screen_surface */
444 * Add configs to display and return the next config ID.
447 egl_g3d_add_configs(_EGLDriver
*drv
, _EGLDisplay
*dpy
, EGLint id
)
449 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
450 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
451 const struct native_config
**native_configs
;
454 native_configs
= gdpy
->native
->get_configs(gdpy
->native
,
458 free(native_configs
);
462 for (i
= 0; i
< num_configs
; i
++) {
464 struct egl_g3d_config
*gconf
;
467 gconf
= CALLOC_STRUCT(egl_g3d_config
);
471 _eglInitConfig(&gconf
->base
, dpy
, id
);
473 api_mask
= get_mode_api_mask(&native_configs
[i
]->mode
, gdrv
->api_mask
);
475 _eglLog(_EGL_DEBUG
, "no state tracker supports config 0x%x",
476 native_configs
[i
]->mode
.visualID
);
479 valid
= _eglConfigFromContextModesRec(&gconf
->base
,
480 &native_configs
[i
]->mode
, api_mask
, api_mask
);
482 #ifdef EGL_MESA_screen_surface
483 /* check if scanout surface bit is set */
484 if (native_configs
[i
]->scanout_bit
) {
485 EGLint val
= GET_CONFIG_ATTRIB(&gconf
->base
, EGL_SURFACE_TYPE
);
486 val
|= EGL_SCREEN_BIT_MESA
;
487 SET_CONFIG_ATTRIB(&gconf
->base
, EGL_SURFACE_TYPE
, val
);
490 valid
= _eglValidateConfig(&gconf
->base
, EGL_FALSE
);
493 _eglLog(_EGL_DEBUG
, "skip invalid config 0x%x",
494 native_configs
[i
]->mode
.visualID
);
499 gconf
->native
= native_configs
[i
];
500 _eglAddConfig(dpy
, &gconf
->base
);
504 free(native_configs
);
509 * Flush the front buffer of the context's draw surface.
512 egl_g3d_flush_frontbuffer(struct pipe_screen
*screen
,
513 struct pipe_surface
*surf
, void *context_private
)
515 struct egl_g3d_context
*gctx
= egl_g3d_context(context_private
);
516 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(gctx
->base
.DrawSurface
);
519 gsurf
->native
->flush_frontbuffer(gsurf
->native
);
523 * Re-validate the context.
526 egl_g3d_update_buffer(struct pipe_screen
*screen
, void *context_private
)
528 struct egl_g3d_context
*gctx
= egl_g3d_context(context_private
);
531 * It is likely that the surface has changed when this function is called.
532 * Set force_validate to skip an unnecessary check.
534 gctx
->force_validate
= EGL_TRUE
;
535 egl_g3d_validate_context(gctx
->base
.Resource
.Display
, &gctx
->base
);
539 egl_g3d_terminate(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
541 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
544 _eglReleaseDisplayResources(drv
, dpy
);
545 _eglCleanupDisplay(dpy
);
548 for (i
= 0; i
< dpy
->NumScreens
; i
++) {
549 struct egl_g3d_screen
*gscr
= egl_g3d_screen(dpy
->Screens
[i
]);
550 free(gscr
->native_modes
);
557 gdpy
->native
->destroy(gdpy
->native
);
560 dpy
->DriverData
= NULL
;
566 egl_g3d_initialize(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
567 EGLint
*major
, EGLint
*minor
)
569 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
570 struct egl_g3d_display
*gdpy
;
572 /* the probe object is unlikely to be needed again */
573 egl_g3d_destroy_probe(drv
, dpy
);
575 gdpy
= CALLOC_STRUCT(egl_g3d_display
);
577 _eglError(EGL_BAD_ALLOC
, "eglInitialize");
580 dpy
->DriverData
= gdpy
;
582 gdpy
->native
= native_create_display(dpy
->NativeDisplay
);
584 _eglError(EGL_NOT_INITIALIZED
, "eglInitialize(no usable display)");
588 gdpy
->native
->screen
->flush_frontbuffer
= egl_g3d_flush_frontbuffer
;
589 gdpy
->native
->screen
->update_buffer
= egl_g3d_update_buffer
;
591 egl_g3d_init_st(&gdrv
->base
);
592 dpy
->ClientAPIsMask
= gdrv
->api_mask
;
594 if (egl_g3d_add_configs(drv
, dpy
, 1) == 1) {
595 _eglError(EGL_NOT_INITIALIZED
, "eglInitialize(unable to add configs)");
599 #ifdef EGL_MESA_screen_surface
600 /* enable MESA_screen_surface */
601 if (gdpy
->native
->modeset
) {
602 dpy
->Extensions
.MESA_screen_surface
= EGL_TRUE
;
603 egl_g3d_add_screens(drv
, dpy
);
614 egl_g3d_terminate(drv
, dpy
);
619 egl_g3d_create_context(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLConfig
*conf
,
620 _EGLContext
*share
, const EGLint
*attribs
)
622 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
623 struct egl_g3d_context
*gshare
= egl_g3d_context(share
);
624 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
625 struct egl_g3d_context
*gctx
;
626 const __GLcontextModes
*mode
;
628 gctx
= CALLOC_STRUCT(egl_g3d_context
);
630 _eglError(EGL_BAD_ALLOC
, "eglCreateContext");
634 if (!_eglInitContext(&gctx
->base
, dpy
, conf
, attribs
)) {
639 gctx
->stapi
= egl_g3d_choose_st(drv
, &gctx
->base
);
645 mode
= &gconf
->native
->mode
;
647 gdpy
->native
->create_context(gdpy
->native
, (void *) &gctx
->base
);
653 gctx
->st_ctx
= gctx
->stapi
->st_create_context(gctx
->pipe
, mode
,
654 (gshare
) ? gshare
->st_ctx
: NULL
);
656 gctx
->pipe
->destroy(gctx
->pipe
);
668 destroy_context(_EGLDisplay
*dpy
, _EGLContext
*ctx
)
670 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
672 /* FIXME a context might live longer than its display */
673 if (!dpy
->Initialized
)
674 _eglLog(_EGL_FATAL
, "destroy a context with an unitialized display");
676 egl_g3d_realloc_context(dpy
, &gctx
->base
);
677 /* it will destroy the associated pipe context */
678 gctx
->stapi
->st_destroy_context(gctx
->st_ctx
);
684 egl_g3d_destroy_context(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLContext
*ctx
)
686 if (!_eglIsContextBound(ctx
))
687 destroy_context(dpy
, ctx
);
692 init_surface_geometry(_EGLSurface
*surf
)
694 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
696 return gsurf
->native
->validate(gsurf
->native
, 0x0,
697 &gsurf
->sequence_number
, NULL
,
698 &gsurf
->base
.Width
, &gsurf
->base
.Height
);
702 egl_g3d_create_window_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
703 _EGLConfig
*conf
, EGLNativeWindowType win
,
704 const EGLint
*attribs
)
706 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
707 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
708 struct egl_g3d_surface
*gsurf
;
710 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
712 _eglError(EGL_BAD_ALLOC
, "eglCreateWindowSurface");
716 if (!_eglInitSurface(&gsurf
->base
, dpy
, EGL_WINDOW_BIT
, conf
, attribs
)) {
722 gdpy
->native
->create_window_surface(gdpy
->native
, win
, gconf
->native
);
723 if (!gsurf
->native
) {
728 if (!init_surface_geometry(&gsurf
->base
)) {
729 gsurf
->native
->destroy(gsurf
->native
);
734 gsurf
->render_att
= (gsurf
->base
.RenderBuffer
== EGL_SINGLE_BUFFER
||
735 !gconf
->native
->mode
.doubleBufferMode
) ?
736 NATIVE_ATTACHMENT_FRONT_LEFT
: NATIVE_ATTACHMENT_BACK_LEFT
;
742 egl_g3d_create_pixmap_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
743 _EGLConfig
*conf
, EGLNativePixmapType pix
,
744 const EGLint
*attribs
)
746 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
747 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
748 struct egl_g3d_surface
*gsurf
;
750 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
752 _eglError(EGL_BAD_ALLOC
, "eglCreatePixmapSurface");
756 if (!_eglInitSurface(&gsurf
->base
, dpy
, EGL_PIXMAP_BIT
, conf
, attribs
)) {
762 gdpy
->native
->create_pixmap_surface(gdpy
->native
, pix
, gconf
->native
);
763 if (!gsurf
->native
) {
768 if (!init_surface_geometry(&gsurf
->base
)) {
769 gsurf
->native
->destroy(gsurf
->native
);
774 gsurf
->render_att
= NATIVE_ATTACHMENT_FRONT_LEFT
;
780 egl_g3d_create_pbuffer_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
781 _EGLConfig
*conf
, const EGLint
*attribs
)
783 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
784 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
785 struct egl_g3d_surface
*gsurf
;
787 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
789 _eglError(EGL_BAD_ALLOC
, "eglCreatePbufferSurface");
793 if (!_eglInitSurface(&gsurf
->base
, dpy
, EGL_PBUFFER_BIT
, conf
, attribs
)) {
799 gdpy
->native
->create_pbuffer_surface(gdpy
->native
, gconf
->native
,
800 gsurf
->base
.Width
, gsurf
->base
.Height
);
801 if (!gsurf
->native
) {
806 if (!init_surface_geometry(&gsurf
->base
)) {
807 gsurf
->native
->destroy(gsurf
->native
);
812 gsurf
->render_att
= (!gconf
->native
->mode
.doubleBufferMode
) ?
813 NATIVE_ATTACHMENT_FRONT_LEFT
: NATIVE_ATTACHMENT_BACK_LEFT
;
822 destroy_surface(_EGLDisplay
*dpy
, _EGLSurface
*surf
)
824 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
826 /* FIXME a surface might live longer than its display */
827 if (!dpy
->Initialized
)
828 _eglLog(_EGL_FATAL
, "destroy a surface with an unitialized display");
830 pipe_surface_reference(&gsurf
->render_surface
, NULL
);
831 gsurf
->native
->destroy(gsurf
->native
);
836 egl_g3d_destroy_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
)
838 if (!_eglIsSurfaceBound(surf
))
839 destroy_surface(dpy
, surf
);
844 egl_g3d_make_current(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
845 _EGLSurface
*draw
, _EGLSurface
*read
, _EGLContext
*ctx
)
847 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
848 struct egl_g3d_surface
*gdraw
= egl_g3d_surface(draw
);
849 struct egl_g3d_context
*old_gctx
;
850 EGLBoolean ok
= EGL_TRUE
;
852 /* bind the new context and return the "orphaned" one */
853 if (!_eglBindContext(&ctx
, &draw
, &read
))
855 old_gctx
= egl_g3d_context(ctx
);
858 /* flush old context */
859 old_gctx
->stapi
->st_flush(old_gctx
->st_ctx
,
860 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
, NULL
);
863 * The old context is no longer current, and egl_g3d_realloc_context()
864 * should be called to destroy the framebuffers. However, it is possible
865 * that it will be made current again with the same draw/read surfaces.
866 * It might be better to keep it around.
871 ok
= egl_g3d_realloc_context(dpy
, &gctx
->base
);
873 ok
= gctx
->stapi
->st_make_current(gctx
->st_ctx
,
874 gctx
->draw
.st_fb
, gctx
->read
.st_fb
);
876 egl_g3d_validate_context(dpy
, &gctx
->base
);
877 if (gdraw
->base
.Type
== EGL_WINDOW_BIT
) {
878 gctx
->base
.WindowRenderBuffer
=
879 (gdraw
->render_att
== NATIVE_ATTACHMENT_FRONT_LEFT
) ?
880 EGL_SINGLE_BUFFER
: EGL_BACK_BUFFER
;
886 ok
= old_gctx
->stapi
->st_make_current(NULL
, NULL
, NULL
);
887 old_gctx
->base
.WindowRenderBuffer
= EGL_NONE
;
890 if (ctx
&& !_eglIsContextLinked(ctx
))
891 destroy_context(dpy
, ctx
);
892 if (draw
&& !_eglIsSurfaceLinked(draw
))
893 destroy_surface(dpy
, draw
);
894 if (read
&& read
!= draw
&& !_eglIsSurfaceLinked(read
))
895 destroy_surface(dpy
, read
);
901 egl_g3d_swap_buffers(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
)
903 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
904 _EGLContext
*ctx
= _eglGetCurrentContext();
905 struct egl_g3d_context
*gctx
= NULL
;
907 /* no-op for pixmap or pbuffer surface */
908 if (gsurf
->base
.Type
== EGL_PIXMAP_BIT
||
909 gsurf
->base
.Type
== EGL_PBUFFER_BIT
)
912 /* or when the surface is single-buffered */
913 if (gsurf
->render_att
== NATIVE_ATTACHMENT_FRONT_LEFT
)
916 if (ctx
&& ctx
->DrawSurface
== surf
)
917 gctx
= egl_g3d_context(ctx
);
919 /* flush if the surface is current */
921 gctx
->stapi
->st_notify_swapbuffers(gctx
->draw
.st_fb
);
924 * We drew on the back buffer, unless there was no back buffer.
925 * In that case, we drew on the front buffer. Either case, we call
928 if (!gsurf
->native
->swap_buffers(gsurf
->native
))
932 struct egl_g3d_config
*gconf
= egl_g3d_config(gsurf
->base
.Config
);
934 /* force validation if the swap method is not copy */
935 if (gconf
->native
->mode
.swapMethod
!= GLX_SWAP_COPY_OML
) {
936 gctx
->force_validate
= EGL_TRUE
;
937 egl_g3d_validate_context(dpy
, &gctx
->base
);
945 * Find a config that supports the pixmap.
948 find_pixmap_config(_EGLDisplay
*dpy
, EGLNativePixmapType pix
)
950 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
951 struct egl_g3d_config
*gconf
;
954 for (i
= 0; i
< dpy
->NumConfigs
; i
++) {
955 gconf
= egl_g3d_config(dpy
->Configs
[i
]);
956 if (gdpy
->native
->is_pixmap_supported(gdpy
->native
, pix
, gconf
->native
))
960 return (i
< dpy
->NumConfigs
) ? &gconf
->base
: NULL
;
964 * Get the pipe surface of the given attachment of the native surface.
966 static struct pipe_surface
*
967 get_pipe_surface(struct native_display
*ndpy
, struct native_surface
*nsurf
,
968 enum native_attachment natt
)
970 struct pipe_texture
*textures
[NUM_NATIVE_ATTACHMENTS
];
971 struct pipe_surface
*psurf
;
973 textures
[natt
] = NULL
;
974 nsurf
->validate(nsurf
, 1 << natt
, NULL
, textures
, NULL
, NULL
);
978 psurf
= ndpy
->screen
->get_tex_surface(ndpy
->screen
, textures
[natt
],
979 0, 0, 0, PIPE_BUFFER_USAGE_CPU_WRITE
);
980 pipe_texture_reference(&textures
[natt
], NULL
);
986 egl_g3d_copy_buffers(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
,
987 EGLNativePixmapType target
)
989 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
990 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
991 _EGLContext
*ctx
= _eglGetCurrentContext();
992 struct egl_g3d_config
*gconf
;
993 struct native_surface
*nsurf
;
994 struct pipe_screen
*screen
= gdpy
->native
->screen
;
995 struct pipe_surface
*psurf
;
997 if (!gsurf
->render_surface
)
1000 gconf
= egl_g3d_config(find_pixmap_config(dpy
, target
));
1002 return _eglError(EGL_BAD_NATIVE_PIXMAP
, "eglCopyBuffers");
1004 nsurf
= gdpy
->native
->create_pixmap_surface(gdpy
->native
,
1005 target
, gconf
->native
);
1007 return _eglError(EGL_BAD_NATIVE_PIXMAP
, "eglCopyBuffers");
1009 /* flush if the surface is current */
1010 if (ctx
&& ctx
->DrawSurface
== &gsurf
->base
) {
1011 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
1012 gctx
->stapi
->st_flush(gctx
->st_ctx
,
1013 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
, NULL
);
1016 psurf
= get_pipe_surface(gdpy
->native
, nsurf
, NATIVE_ATTACHMENT_FRONT_LEFT
);
1018 struct pipe_context pipe
;
1021 * XXX This is hacky. If we might allow the EGLDisplay to create a pipe
1022 * context of its own and use the blitter context for this.
1024 memset(&pipe
, 0, sizeof(pipe
));
1025 pipe
.screen
= screen
;
1027 util_surface_copy(&pipe
, FALSE
, psurf
, 0, 0,
1028 gsurf
->render_surface
, 0, 0, psurf
->width
, psurf
->height
);
1030 pipe_surface_reference(&psurf
, NULL
);
1031 nsurf
->flush_frontbuffer(nsurf
);
1034 nsurf
->destroy(nsurf
);
1040 egl_g3d_wait_client(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLContext
*ctx
)
1042 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
1043 gctx
->stapi
->st_finish(gctx
->st_ctx
);
1048 egl_g3d_wait_native(_EGLDriver
*drv
, _EGLDisplay
*dpy
, EGLint engine
)
1050 _EGLContext
*ctx
= _eglGetCurrentContext();
1052 if (engine
!= EGL_CORE_NATIVE_ENGINE
)
1053 return _eglError(EGL_BAD_PARAMETER
, "eglWaitNative");
1055 if (ctx
&& ctx
->DrawSurface
) {
1056 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(ctx
->DrawSurface
);
1057 gsurf
->native
->wait(gsurf
->native
);
1064 egl_g3d_get_proc_address(_EGLDriver
*drv
, const char *procname
)
1066 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
1070 /* in case this is called before a display is initialized */
1071 egl_g3d_init_st(&gdrv
->base
);
1073 for (i
= 0; i
< NUM_EGL_G3D_STS
; i
++) {
1074 const struct egl_g3d_st
*stapi
= gdrv
->stapis
[i
];
1076 proc
= (_EGLProc
) stapi
->st_get_proc_address(procname
);
1082 return (_EGLProc
) NULL
;
1086 egl_g3d_bind_tex_image(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1087 _EGLSurface
*surf
, EGLint buffer
)
1089 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1090 _EGLContext
*ctx
= _eglGetAPIContext(EGL_OPENGL_ES_API
);
1091 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
1092 enum pipe_format target_format
;
1095 if (!gsurf
|| gsurf
->base
.Type
!= EGL_PBUFFER_BIT
)
1096 return _eglError(EGL_BAD_SURFACE
, "eglBindTexImage");
1097 if (buffer
!= EGL_BACK_BUFFER
)
1098 return _eglError(EGL_BAD_PARAMETER
, "eglBindTexImage");
1099 if (gsurf
->base
.BoundToTexture
)
1100 return _eglError(EGL_BAD_ACCESS
, "eglBindTexImage");
1102 switch (gsurf
->base
.TextureFormat
) {
1103 case EGL_TEXTURE_RGB
:
1104 target_format
= PIPE_FORMAT_R8G8B8_UNORM
;
1106 case EGL_TEXTURE_RGBA
:
1107 target_format
= PIPE_FORMAT_A8R8G8B8_UNORM
;
1110 return _eglError(EGL_BAD_MATCH
, "eglBindTexImage");
1113 switch (gsurf
->base
.TextureTarget
) {
1114 case EGL_TEXTURE_2D
:
1115 target
= ST_TEXTURE_2D
;
1118 return _eglError(EGL_BAD_MATCH
, "eglBindTexImage");
1121 /* flush properly if the surface is bound */
1122 if (gsurf
->base
.CurrentContext
) {
1123 gctx
= egl_g3d_context(gsurf
->base
.CurrentContext
);
1124 gctx
->stapi
->st_flush(gctx
->st_ctx
,
1125 PIPE_FLUSH_RENDER_CACHE
| PIPE_FLUSH_FRAME
, NULL
);
1129 if (!gsurf
->render_surface
)
1132 gctx
->stapi
->st_bind_texture_surface(gsurf
->render_surface
,
1133 target
, gsurf
->base
.MipmapLevel
, target_format
);
1134 gsurf
->base
.BoundToTexture
= EGL_TRUE
;
1141 egl_g3d_release_tex_image(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1142 _EGLSurface
*surf
, EGLint buffer
)
1144 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1146 if (!gsurf
|| gsurf
->base
.Type
!= EGL_PBUFFER_BIT
||
1147 !gsurf
->base
.BoundToTexture
)
1148 return _eglError(EGL_BAD_SURFACE
, "eglReleaseTexImage");
1149 if (buffer
!= EGL_BACK_BUFFER
)
1150 return _eglError(EGL_BAD_PARAMETER
, "eglReleaseTexImage");
1152 if (gsurf
->render_surface
) {
1153 _EGLContext
*ctx
= _eglGetAPIContext(EGL_OPENGL_ES_API
);
1154 struct egl_g3d_context
*gctx
= egl_g3d_context(ctx
);
1156 /* what if the context the surface binds to is no longer current? */
1158 gctx
->stapi
->st_unbind_texture_surface(gsurf
->render_surface
,
1159 ST_TEXTURE_2D
, gsurf
->base
.MipmapLevel
);
1162 gsurf
->base
.BoundToTexture
= EGL_FALSE
;
1167 #ifdef EGL_MESA_screen_surface
1169 static _EGLSurface
*
1170 egl_g3d_create_screen_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1171 _EGLConfig
*conf
, const EGLint
*attribs
)
1173 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
1174 struct egl_g3d_config
*gconf
= egl_g3d_config(conf
);
1175 struct egl_g3d_surface
*gsurf
;
1177 gsurf
= CALLOC_STRUCT(egl_g3d_surface
);
1179 _eglError(EGL_BAD_ALLOC
, "eglCreatePbufferSurface");
1183 if (!_eglInitSurface(&gsurf
->base
, dpy
,
1184 EGL_SCREEN_BIT_MESA
, conf
, attribs
)) {
1190 gdpy
->native
->modeset
->create_scanout_surface(gdpy
->native
,
1191 gconf
->native
, gsurf
->base
.Width
, gsurf
->base
.Height
);
1192 if (!gsurf
->native
) {
1197 gsurf
->render_att
= (!gconf
->native
->mode
.doubleBufferMode
) ?
1198 NATIVE_ATTACHMENT_FRONT_LEFT
: NATIVE_ATTACHMENT_BACK_LEFT
;
1200 return &gsurf
->base
;
1204 egl_g3d_show_screen_surface(_EGLDriver
*drv
, _EGLDisplay
*dpy
,
1205 _EGLScreen
*scr
, _EGLSurface
*surf
,
1208 struct egl_g3d_display
*gdpy
= egl_g3d_display(dpy
);
1209 struct egl_g3d_screen
*gscr
= egl_g3d_screen(scr
);
1210 struct egl_g3d_surface
*gsurf
= egl_g3d_surface(surf
);
1211 struct native_surface
*nsurf
;
1212 const struct native_mode
*nmode
;
1219 return _eglError(EGL_BAD_MATCH
, "eglShowSurfaceMESA");
1220 if (gsurf
->base
.Type
!= EGL_SCREEN_BIT_MESA
)
1221 return _eglError(EGL_BAD_SURFACE
, "eglShowScreenSurfaceMESA");
1222 if (gsurf
->base
.Width
< mode
->Width
|| gsurf
->base
.Height
< mode
->Height
)
1223 return _eglError(EGL_BAD_MATCH
,
1224 "eglShowSurfaceMESA(surface smaller than mode size)");
1226 /* find the index of the mode */
1227 for (idx
= 0; idx
< gscr
->base
.NumModes
; idx
++)
1228 if (mode
== &gscr
->base
.Modes
[idx
])
1230 if (idx
>= gscr
->base
.NumModes
) {
1231 return _eglError(EGL_BAD_MODE_MESA
,
1232 "eglShowSurfaceMESA(unknown mode)");
1235 nsurf
= gsurf
->native
;
1236 nmode
= gscr
->native_modes
[idx
];
1240 return _eglError(EGL_BAD_MATCH
, "eglShowSurfaceMESA");
1242 /* disable the screen */
1247 /* TODO surface panning by CRTC choosing */
1248 changed
= gdpy
->native
->modeset
->program(gdpy
->native
, 0, nsurf
,
1249 gscr
->base
.OriginX
, gscr
->base
.OriginY
, &gscr
->native
, 1, nmode
);
1251 gscr
->base
.CurrentSurface
= &gsurf
->base
;
1252 gscr
->base
.CurrentMode
= mode
;
1258 #endif /* EGL_MESA_screen_surface */
1261 egl_g3d_probe(_EGLDriver
*drv
, _EGLDisplay
*dpy
)
1263 struct native_probe
*nprobe
;
1264 enum native_probe_result res
;
1267 nprobe
= egl_g3d_get_probe(drv
, dpy
);
1268 res
= native_get_probe_result(nprobe
);
1271 case NATIVE_PROBE_UNKNOWN
:
1275 case NATIVE_PROBE_FALLBACK
:
1278 case NATIVE_PROBE_SUPPORTED
:
1281 case NATIVE_PROBE_EXACT
:
1290 egl_g3d_unload(_EGLDriver
*drv
)
1292 struct egl_g3d_driver
*gdrv
= egl_g3d_driver(drv
);
1294 egl_g3d_destroy_probe(drv
, NULL
);
1299 _eglMain(const char *args
)
1301 static char driver_name
[64];
1302 struct egl_g3d_driver
*gdrv
;
1304 snprintf(driver_name
, sizeof(driver_name
),
1305 "Gallium/%s", native_get_name());
1307 gdrv
= CALLOC_STRUCT(egl_g3d_driver
);
1311 _eglInitDriverFallbacks(&gdrv
->base
);
1313 gdrv
->base
.API
.Initialize
= egl_g3d_initialize
;
1314 gdrv
->base
.API
.Terminate
= egl_g3d_terminate
;
1315 gdrv
->base
.API
.CreateContext
= egl_g3d_create_context
;
1316 gdrv
->base
.API
.DestroyContext
= egl_g3d_destroy_context
;
1317 gdrv
->base
.API
.CreateWindowSurface
= egl_g3d_create_window_surface
;
1318 gdrv
->base
.API
.CreatePixmapSurface
= egl_g3d_create_pixmap_surface
;
1319 gdrv
->base
.API
.CreatePbufferSurface
= egl_g3d_create_pbuffer_surface
;
1320 gdrv
->base
.API
.DestroySurface
= egl_g3d_destroy_surface
;
1321 gdrv
->base
.API
.MakeCurrent
= egl_g3d_make_current
;
1322 gdrv
->base
.API
.SwapBuffers
= egl_g3d_swap_buffers
;
1323 gdrv
->base
.API
.CopyBuffers
= egl_g3d_copy_buffers
;
1324 gdrv
->base
.API
.WaitClient
= egl_g3d_wait_client
;
1325 gdrv
->base
.API
.WaitNative
= egl_g3d_wait_native
;
1326 gdrv
->base
.API
.GetProcAddress
= egl_g3d_get_proc_address
;
1328 gdrv
->base
.API
.BindTexImage
= egl_g3d_bind_tex_image
;
1329 gdrv
->base
.API
.ReleaseTexImage
= egl_g3d_release_tex_image
;
1331 #ifdef EGL_MESA_screen_surface
1332 gdrv
->base
.API
.CreateScreenSurfaceMESA
= egl_g3d_create_screen_surface
;
1333 gdrv
->base
.API
.ShowScreenSurfaceMESA
= egl_g3d_show_screen_surface
;
1336 gdrv
->base
.Name
= driver_name
;
1337 gdrv
->base
.Probe
= egl_g3d_probe
;
1338 gdrv
->base
.Unload
= egl_g3d_unload
;
1340 /* the key is " EGL G3D" */
1341 gdrv
->probe_key
= 0x0E61063D;