2 * Copyright © 2011 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Kristian Høgsberg <krh@bitplanet.net>
33 #include <sys/types.h>
39 #include "egl_dri2_fallbacks.h"
42 static struct gbm_bo
*
43 lock_front_buffer(struct gbm_surface
*_surf
)
45 struct gbm_dri_surface
*surf
= (struct gbm_dri_surface
*) _surf
;
46 struct dri2_egl_surface
*dri2_surf
= surf
->dri_private
;
49 if (dri2_surf
->current
== NULL
) {
50 _eglError(EGL_BAD_SURFACE
, "no front buffer");
54 bo
= dri2_surf
->current
->bo
;
55 dri2_surf
->current
->locked
= 1;
56 dri2_surf
->current
= NULL
;
62 release_buffer(struct gbm_surface
*_surf
, struct gbm_bo
*bo
)
64 struct gbm_dri_surface
*surf
= (struct gbm_dri_surface
*) _surf
;
65 struct dri2_egl_surface
*dri2_surf
= surf
->dri_private
;
68 for (i
= 0; i
< ARRAY_SIZE(dri2_surf
->color_buffers
); i
++) {
69 if (dri2_surf
->color_buffers
[i
].bo
== bo
) {
70 dri2_surf
->color_buffers
[i
].locked
= 0;
76 has_free_buffers(struct gbm_surface
*_surf
)
78 struct gbm_dri_surface
*surf
= (struct gbm_dri_surface
*) _surf
;
79 struct dri2_egl_surface
*dri2_surf
= surf
->dri_private
;
82 for (i
= 0; i
< ARRAY_SIZE(dri2_surf
->color_buffers
); i
++)
83 if (!dri2_surf
->color_buffers
[i
].locked
)
90 dri2_drm_create_surface(_EGLDriver
*drv
, _EGLDisplay
*disp
, EGLint type
,
91 _EGLConfig
*conf
, void *native_window
,
92 const EGLint
*attrib_list
)
94 struct dri2_egl_display
*dri2_dpy
= dri2_egl_display(disp
);
95 struct dri2_egl_config
*dri2_conf
= dri2_egl_config(conf
);
96 struct dri2_egl_surface
*dri2_surf
;
97 struct gbm_surface
*window
= native_window
;
98 struct gbm_dri_surface
*surf
;
102 dri2_surf
= calloc(1, sizeof *dri2_surf
);
104 _eglError(EGL_BAD_ALLOC
, "dri2_create_surface");
108 if (!_eglInitSurface(&dri2_surf
->base
, disp
, type
, conf
, attrib_list
))
115 surf
= gbm_dri_surface(window
);
116 dri2_surf
->gbm_surf
= surf
;
117 dri2_surf
->base
.Width
= surf
->base
.width
;
118 dri2_surf
->base
.Height
= surf
->base
.height
;
119 surf
->dri_private
= dri2_surf
;
125 dri2_surf
->dri_drawable
=
126 (*dri2_dpy
->dri2
->createNewDrawable
) (dri2_dpy
->dri_screen
,
127 dri2_conf
->dri_double_config
,
128 dri2_surf
->gbm_surf
);
130 if (dri2_surf
->dri_drawable
== NULL
) {
131 _eglError(EGL_BAD_ALLOC
, "dri2->createNewDrawable");
135 return &dri2_surf
->base
;
144 dri2_drm_create_window_surface(_EGLDriver
*drv
, _EGLDisplay
*disp
,
145 _EGLConfig
*conf
, void *native_window
,
146 const EGLint
*attrib_list
)
148 return dri2_drm_create_surface(drv
, disp
, EGL_WINDOW_BIT
, conf
,
149 native_window
, attrib_list
);
153 dri2_drm_create_pixmap_surface(_EGLDriver
*drv
, _EGLDisplay
*disp
,
154 _EGLConfig
*conf
, void *native_window
,
155 const EGLint
*attrib_list
)
157 /* From the EGL_MESA_platform_gbm spec, version 5:
159 * It is not valid to call eglCreatePlatformPixmapSurfaceEXT with a <dpy>
160 * that belongs to the GBM platform. Any such call fails and generates
163 _eglError(EGL_BAD_PARAMETER
, "cannot create EGL pixmap surfaces on GBM");
168 dri2_drm_destroy_surface(_EGLDriver
*drv
, _EGLDisplay
*disp
, _EGLSurface
*surf
)
170 struct dri2_egl_display
*dri2_dpy
= dri2_egl_display(disp
);
171 struct dri2_egl_surface
*dri2_surf
= dri2_egl_surface(surf
);
174 if (!_eglPutSurface(surf
))
177 (*dri2_dpy
->core
->destroyDrawable
)(dri2_surf
->dri_drawable
);
179 for (i
= 0; i
< ARRAY_SIZE(dri2_surf
->color_buffers
); i
++) {
180 if (dri2_surf
->color_buffers
[i
].bo
)
181 gbm_bo_destroy(dri2_surf
->color_buffers
[i
].bo
);
184 for (i
= 0; i
< __DRI_BUFFER_COUNT
; i
++) {
185 if (dri2_surf
->dri_buffers
[i
])
186 dri2_dpy
->dri2
->releaseBuffer(dri2_dpy
->dri_screen
,
187 dri2_surf
->dri_buffers
[i
]);
196 get_back_bo(struct dri2_egl_surface
*dri2_surf
)
198 struct dri2_egl_display
*dri2_dpy
=
199 dri2_egl_display(dri2_surf
->base
.Resource
.Display
);
200 struct gbm_dri_surface
*surf
= dri2_surf
->gbm_surf
;
203 if (dri2_surf
->back
== NULL
) {
204 for (i
= 0; i
< ARRAY_SIZE(dri2_surf
->color_buffers
); i
++) {
205 if (!dri2_surf
->color_buffers
[i
].locked
) {
206 dri2_surf
->back
= &dri2_surf
->color_buffers
[i
];
212 if (dri2_surf
->back
== NULL
)
214 if (dri2_surf
->back
->bo
== NULL
)
215 dri2_surf
->back
->bo
= gbm_bo_create(&dri2_dpy
->gbm_dri
->base
.base
,
216 surf
->base
.width
, surf
->base
.height
,
217 surf
->base
.format
, surf
->base
.flags
);
218 if (dri2_surf
->back
->bo
== NULL
)
225 back_bo_to_dri_buffer(struct dri2_egl_surface
*dri2_surf
, __DRIbuffer
*buffer
)
227 struct dri2_egl_display
*dri2_dpy
=
228 dri2_egl_display(dri2_surf
->base
.Resource
.Display
);
229 struct gbm_dri_bo
*bo
;
232 bo
= (struct gbm_dri_bo
*) dri2_surf
->back
->bo
;
234 dri2_dpy
->image
->queryImage(bo
->image
, __DRI_IMAGE_ATTRIB_NAME
, &name
);
235 dri2_dpy
->image
->queryImage(bo
->image
, __DRI_IMAGE_ATTRIB_STRIDE
, &pitch
);
237 buffer
->attachment
= __DRI_BUFFER_BACK_LEFT
;
239 buffer
->pitch
= pitch
;
245 get_aux_bo(struct dri2_egl_surface
*dri2_surf
,
246 unsigned int attachment
, unsigned int format
, __DRIbuffer
*buffer
)
248 struct dri2_egl_display
*dri2_dpy
=
249 dri2_egl_display(dri2_surf
->base
.Resource
.Display
);
250 __DRIbuffer
*b
= dri2_surf
->dri_buffers
[attachment
];
253 b
= dri2_dpy
->dri2
->allocateBuffer(dri2_dpy
->dri_screen
,
255 dri2_surf
->base
.Width
,
256 dri2_surf
->base
.Height
);
257 dri2_surf
->dri_buffers
[attachment
] = b
;
262 memcpy(buffer
, b
, sizeof *buffer
);
268 dri2_drm_get_buffers_with_format(__DRIdrawable
*driDrawable
,
269 int *width
, int *height
,
270 unsigned int *attachments
, int count
,
271 int *out_count
, void *loaderPrivate
)
273 struct dri2_egl_surface
*dri2_surf
= loaderPrivate
;
276 dri2_surf
->buffer_count
= 0;
277 for (i
= 0, j
= 0; i
< 2 * count
; i
+= 2, j
++) {
278 assert(attachments
[i
] < __DRI_BUFFER_COUNT
);
279 assert(dri2_surf
->buffer_count
< 5);
281 switch (attachments
[i
]) {
282 case __DRI_BUFFER_BACK_LEFT
:
283 if (get_back_bo(dri2_surf
) < 0) {
284 _eglError(EGL_BAD_ALLOC
, "failed to allocate color buffer");
287 back_bo_to_dri_buffer(dri2_surf
, &dri2_surf
->buffers
[j
]);
290 if (get_aux_bo(dri2_surf
, attachments
[i
], attachments
[i
+ 1],
291 &dri2_surf
->buffers
[j
]) < 0) {
292 _eglError(EGL_BAD_ALLOC
, "failed to allocate aux buffer");
303 *width
= dri2_surf
->base
.Width
;
304 *height
= dri2_surf
->base
.Height
;
306 return dri2_surf
->buffers
;
310 dri2_drm_get_buffers(__DRIdrawable
* driDrawable
,
311 int *width
, int *height
,
312 unsigned int *attachments
, int count
,
313 int *out_count
, void *loaderPrivate
)
315 unsigned int *attachments_with_format
;
317 const unsigned int format
= 32;
320 attachments_with_format
= calloc(count
* 2, sizeof(unsigned int));
321 if (!attachments_with_format
) {
326 for (i
= 0; i
< count
; ++i
) {
327 attachments_with_format
[2*i
] = attachments
[i
];
328 attachments_with_format
[2*i
+ 1] = format
;
332 dri2_drm_get_buffers_with_format(driDrawable
,
334 attachments_with_format
, count
,
335 out_count
, loaderPrivate
);
337 free(attachments_with_format
);
343 dri2_drm_image_get_buffers(__DRIdrawable
*driDrawable
,
347 uint32_t buffer_mask
,
348 struct __DRIimageList
*buffers
)
350 struct dri2_egl_surface
*dri2_surf
= loaderPrivate
;
351 struct gbm_dri_bo
*bo
;
353 if (get_back_bo(dri2_surf
) < 0)
356 bo
= (struct gbm_dri_bo
*) dri2_surf
->back
->bo
;
357 buffers
->image_mask
= __DRI_IMAGE_BUFFER_BACK
;
358 buffers
->back
= bo
->image
;
364 dri2_drm_flush_front_buffer(__DRIdrawable
* driDrawable
, void *loaderPrivate
)
367 (void) loaderPrivate
;
371 dri2_drm_swap_buffers(_EGLDriver
*drv
, _EGLDisplay
*disp
, _EGLSurface
*draw
)
373 struct dri2_egl_display
*dri2_dpy
= dri2_egl_display(disp
);
374 struct dri2_egl_surface
*dri2_surf
= dri2_egl_surface(draw
);
377 if (dri2_surf
->base
.Type
== EGL_WINDOW_BIT
) {
378 if (dri2_surf
->current
)
379 _eglError(EGL_BAD_SURFACE
, "dri2_swap_buffers");
380 for (i
= 0; i
< ARRAY_SIZE(dri2_surf
->color_buffers
); i
++)
381 if (dri2_surf
->color_buffers
[i
].age
> 0)
382 dri2_surf
->color_buffers
[i
].age
++;
383 dri2_surf
->current
= dri2_surf
->back
;
384 dri2_surf
->current
->age
= 1;
385 dri2_surf
->back
= NULL
;
388 (*dri2_dpy
->flush
->flush
)(dri2_surf
->dri_drawable
);
389 (*dri2_dpy
->flush
->invalidate
)(dri2_surf
->dri_drawable
);
395 dri2_drm_query_buffer_age(_EGLDriver
*drv
,
396 _EGLDisplay
*disp
, _EGLSurface
*surface
)
398 struct dri2_egl_surface
*dri2_surf
= dri2_egl_surface(surface
);
400 if (get_back_bo(dri2_surf
) < 0) {
401 _eglError(EGL_BAD_ALLOC
, "dri2_query_buffer_age");
405 return dri2_surf
->back
->age
;
409 dri2_drm_create_image_khr_pixmap(_EGLDisplay
*disp
, _EGLContext
*ctx
,
410 EGLClientBuffer buffer
, const EGLint
*attr_list
)
412 struct dri2_egl_display
*dri2_dpy
= dri2_egl_display(disp
);
413 struct gbm_dri_bo
*dri_bo
= gbm_dri_bo((struct gbm_bo
*) buffer
);
414 struct dri2_egl_image
*dri2_img
;
416 dri2_img
= malloc(sizeof *dri2_img
);
418 _eglError(EGL_BAD_ALLOC
, "dri2_create_image_khr_pixmap");
422 if (!_eglInitImage(&dri2_img
->base
, disp
)) {
427 dri2_img
->dri_image
= dri2_dpy
->image
->dupImage(dri_bo
->image
, dri2_img
);
428 if (dri2_img
->dri_image
== NULL
) {
430 _eglError(EGL_BAD_ALLOC
, "dri2_create_image_khr_pixmap");
434 return &dri2_img
->base
;
438 dri2_drm_create_image_khr(_EGLDriver
*drv
, _EGLDisplay
*disp
,
439 _EGLContext
*ctx
, EGLenum target
,
440 EGLClientBuffer buffer
, const EGLint
*attr_list
)
445 case EGL_NATIVE_PIXMAP_KHR
:
446 return dri2_drm_create_image_khr_pixmap(disp
, ctx
, buffer
, attr_list
);
448 return dri2_create_image_khr(drv
, disp
, ctx
, target
, buffer
, attr_list
);
453 dri2_drm_authenticate(_EGLDisplay
*disp
, uint32_t id
)
455 struct dri2_egl_display
*dri2_dpy
= dri2_egl_display(disp
);
457 return drmAuthMagic(dri2_dpy
->fd
, id
);
460 static struct dri2_egl_display_vtbl dri2_drm_display_vtbl
= {
461 .authenticate
= dri2_drm_authenticate
,
462 .create_window_surface
= dri2_drm_create_window_surface
,
463 .create_pixmap_surface
= dri2_drm_create_pixmap_surface
,
464 .create_pbuffer_surface
= dri2_fallback_create_pbuffer_surface
,
465 .destroy_surface
= dri2_drm_destroy_surface
,
466 .create_image
= dri2_drm_create_image_khr
,
467 .swap_interval
= dri2_fallback_swap_interval
,
468 .swap_buffers
= dri2_drm_swap_buffers
,
469 .swap_buffers_with_damage
= dri2_fallback_swap_buffers_with_damage
,
470 .swap_buffers_region
= dri2_fallback_swap_buffers_region
,
471 .post_sub_buffer
= dri2_fallback_post_sub_buffer
,
472 .copy_buffers
= dri2_fallback_copy_buffers
,
473 .query_buffer_age
= dri2_drm_query_buffer_age
,
474 .create_wayland_buffer_from_image
= dri2_fallback_create_wayland_buffer_from_image
,
478 dri2_initialize_drm(_EGLDriver
*drv
, _EGLDisplay
*disp
)
480 struct dri2_egl_display
*dri2_dpy
;
481 struct gbm_device
*gbm
;
485 loader_set_logger(_eglLog
);
487 dri2_dpy
= calloc(1, sizeof *dri2_dpy
);
489 return _eglError(EGL_BAD_ALLOC
, "eglInitialize");
491 disp
->DriverData
= (void *) dri2_dpy
;
493 gbm
= disp
->PlatformDisplay
;
496 int n
= snprintf(buf
, sizeof(buf
), DRM_DEV_NAME
, DRM_DIR_NAME
, 0);
497 if (n
!= -1 && n
< sizeof(buf
))
498 fd
= open(buf
, O_RDWR
);
500 fd
= open("/dev/dri/card0", O_RDWR
);
501 dri2_dpy
->own_device
= 1;
502 gbm
= gbm_create_device(fd
);
507 if (strcmp(gbm_device_get_backend_name(gbm
), "drm") != 0) {
512 dri2_dpy
->gbm_dri
= gbm_dri_device(gbm
);
513 if (dri2_dpy
->gbm_dri
->base
.type
!= GBM_DRM_DRIVER_TYPE_DRI
) {
519 fd
= dup(gbm_device_get_fd(gbm
));
527 dri2_dpy
->device_name
= loader_get_device_name_for_fd(dri2_dpy
->fd
);
528 dri2_dpy
->driver_name
= dri2_dpy
->gbm_dri
->base
.driver_name
;
530 dri2_dpy
->dri_screen
= dri2_dpy
->gbm_dri
->screen
;
531 dri2_dpy
->core
= dri2_dpy
->gbm_dri
->core
;
532 dri2_dpy
->dri2
= dri2_dpy
->gbm_dri
->dri2
;
533 dri2_dpy
->image
= dri2_dpy
->gbm_dri
->image
;
534 dri2_dpy
->flush
= dri2_dpy
->gbm_dri
->flush
;
535 dri2_dpy
->driver_configs
= dri2_dpy
->gbm_dri
->driver_configs
;
537 dri2_dpy
->gbm_dri
->lookup_image
= dri2_lookup_egl_image
;
538 dri2_dpy
->gbm_dri
->lookup_user_data
= disp
;
540 dri2_dpy
->gbm_dri
->get_buffers
= dri2_drm_get_buffers
;
541 dri2_dpy
->gbm_dri
->flush_front_buffer
= dri2_drm_flush_front_buffer
;
542 dri2_dpy
->gbm_dri
->get_buffers_with_format
= dri2_drm_get_buffers_with_format
;
543 dri2_dpy
->gbm_dri
->image_get_buffers
= dri2_drm_image_get_buffers
;
545 dri2_dpy
->gbm_dri
->base
.base
.surface_lock_front_buffer
= lock_front_buffer
;
546 dri2_dpy
->gbm_dri
->base
.base
.surface_release_buffer
= release_buffer
;
547 dri2_dpy
->gbm_dri
->base
.base
.surface_has_free_buffers
= has_free_buffers
;
549 dri2_setup_screen(disp
);
551 for (i
= 0; dri2_dpy
->driver_configs
[i
]; i
++) {
552 EGLint format
, attr_list
[3];
555 dri2_dpy
->core
->getConfigAttrib(dri2_dpy
->driver_configs
[i
],
556 __DRI_ATTRIB_RED_MASK
, &mask
);
557 if (mask
== 0x3ff00000)
558 format
= GBM_FORMAT_XRGB2101010
;
559 else if (mask
== 0x00ff0000)
560 format
= GBM_FORMAT_XRGB8888
;
561 else if (mask
== 0xf800)
562 format
= GBM_FORMAT_RGB565
;
566 attr_list
[0] = EGL_NATIVE_VISUAL_ID
;
567 attr_list
[1] = format
;
568 attr_list
[2] = EGL_NONE
;
570 dri2_add_config(disp
, dri2_dpy
->driver_configs
[i
],
571 i
+ 1, EGL_WINDOW_BIT
, attr_list
, NULL
);
574 disp
->Extensions
.EXT_buffer_age
= EGL_TRUE
;
576 #ifdef HAVE_WAYLAND_PLATFORM
577 disp
->Extensions
.WL_bind_wayland_display
= EGL_TRUE
;
580 /* we're supporting EGL 1.4 */
581 disp
->VersionMajor
= 1;
582 disp
->VersionMinor
= 4;
584 /* Fill vtbl last to prevent accidentally calling virtual function during
587 dri2_dpy
->vtbl
= &dri2_drm_display_vtbl
;