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 * Benjamin Franzke <benjaminfranzke@googlemail.com>
35 #include <sys/types.h>
39 #include <GL/gl.h> /* dri_interface needs GL types */
40 #include <GL/internal/dri_interface.h>
42 #include "gbm_driint.h"
47 dri_lookup_egl_image(__DRIscreen
*screen
, void *image
, void *data
)
49 struct gbm_dri_device
*dri
= data
;
51 if (dri
->lookup_image
== NULL
)
54 return dri
->lookup_image(screen
, image
, dri
->lookup_user_data
);
57 const __DRIuseInvalidateExtension use_invalidate
= {
58 { __DRI_USE_INVALIDATE
, 1 }
61 const __DRIimageLookupExtension image_lookup_extension
= {
62 { __DRI_IMAGE_LOOKUP
, 1 },
66 struct dri_extension_match
{
72 static struct dri_extension_match dri_core_extensions
[] = {
73 { __DRI_IMAGE
, 1, offsetof(struct gbm_dri_device
, image
) },
77 static struct dri_extension_match gbm_dri_device_extensions
[] = {
78 { __DRI_CORE
, 1, offsetof(struct gbm_dri_device
, core
) },
79 { __DRI_DRI2
, 1, offsetof(struct gbm_dri_device
, dri2
) },
84 dri_bind_extensions(struct gbm_dri_device
*dri
,
85 struct dri_extension_match
*matches
,
86 const __DRIextension
**extensions
)
91 for (i
= 0; extensions
[i
]; i
++) {
92 for (j
= 0; matches
[j
].name
; j
++) {
93 if (strcmp(extensions
[i
]->name
, matches
[j
].name
) == 0 &&
94 extensions
[i
]->version
>= matches
[j
].version
) {
95 field
= ((char *) dri
+ matches
[j
].offset
);
96 *(const __DRIextension
**) field
= extensions
[i
];
101 for (j
= 0; matches
[j
].name
; j
++) {
102 field
= ((char *) dri
+ matches
[j
].offset
);
103 if (*(const __DRIextension
**) field
== NULL
) {
112 dri_load_driver(struct gbm_dri_device
*dri
)
114 const __DRIextension
**extensions
;
115 char path
[PATH_MAX
], *search_paths
, *p
, *next
, *end
;
118 if (geteuid() == getuid()) {
119 /* don't allow setuid apps to use GBM_DRIVERS_PATH */
120 search_paths
= getenv("GBM_DRIVERS_PATH");
122 if (search_paths
== NULL
)
123 search_paths
= DEFAULT_DRIVER_DIR
;
126 end
= search_paths
+ strlen(search_paths
);
127 for (p
= search_paths
; p
< end
&& dri
->driver
== NULL
; p
= next
+ 1) {
129 next
= strchr(p
, ':');
135 snprintf(path
, sizeof path
,
136 "%.*s/tls/%s_dri.so", len
, p
, dri
->base
.driver_name
);
137 dri
->driver
= dlopen(path
, RTLD_NOW
| RTLD_GLOBAL
);
139 if (dri
->driver
== NULL
) {
140 snprintf(path
, sizeof path
,
141 "%.*s/%s_dri.so", len
, p
, dri
->base
.driver_name
);
142 dri
->driver
= dlopen(path
, RTLD_NOW
| RTLD_GLOBAL
);
143 if (dri
->driver
== NULL
)
144 fprintf(stderr
, "failed to open %s: %s\n", path
, dlerror());
148 if (dri
->driver
== NULL
) {
149 fprintf(stderr
, "gbm: failed to open any driver (search paths %s)",
154 extensions
= dlsym(dri
->driver
, __DRI_DRIVER_EXTENSIONS
);
155 if (extensions
== NULL
) {
156 fprintf(stderr
, "gbm: driver exports no extensions (%s)", dlerror());
157 dlclose(dri
->driver
);
162 if (dri_bind_extensions(dri
, gbm_dri_device_extensions
, extensions
) < 0) {
163 dlclose(dri
->driver
);
164 fprintf(stderr
, "failed to bind extensions\n");
172 dri_screen_create(struct gbm_dri_device
*dri
)
174 const __DRIextension
**extensions
;
177 dri
->base
.driver_name
= dri_fd_get_driver_name(dri
->base
.base
.fd
);
178 if (dri
->base
.driver_name
== NULL
)
181 ret
= dri_load_driver(dri
);
183 fprintf(stderr
, "failed to load driver: %s\n", dri
->base
.driver_name
);
187 dri
->extensions
[0] = &image_lookup_extension
.base
;
188 dri
->extensions
[1] = &use_invalidate
.base
;
189 dri
->extensions
[2] = NULL
;
191 if (dri
->dri2
== NULL
)
194 dri
->screen
= dri
->dri2
->createNewScreen(0, dri
->base
.base
.fd
,
196 &dri
->driver_configs
, dri
);
197 if (dri
->screen
== NULL
)
200 extensions
= dri
->core
->getExtensions(dri
->screen
);
201 if (dri_bind_extensions(dri
, dri_core_extensions
, extensions
) < 0) {
206 dri
->lookup_image
= NULL
;
207 dri
->lookup_user_data
= NULL
;
212 dri
->core
->destroyScreen(dri
->screen
);
218 gbm_dri_is_format_supported(struct gbm_device
*gbm
,
219 enum gbm_bo_format format
,
223 case GBM_BO_FORMAT_XRGB8888
:
225 case GBM_BO_FORMAT_ARGB8888
:
226 if (usage
& GBM_BO_USE_SCANOUT
)
233 if (usage
& GBM_BO_USE_CURSOR_64X64
&&
234 usage
& GBM_BO_USE_RENDERING
)
241 gbm_dri_bo_destroy(struct gbm_bo
*_bo
)
243 struct gbm_dri_device
*dri
= gbm_dri_device(_bo
->gbm
);
244 struct gbm_dri_bo
*bo
= gbm_dri_bo(_bo
);
246 dri
->image
->destroyImage(bo
->image
);
250 static struct gbm_bo
*
251 gbm_dri_bo_create_from_egl_image(struct gbm_device
*gbm
,
252 void *egl_dpy
, void *egl_img
,
253 uint32_t width
, uint32_t height
,
256 struct gbm_dri_device
*dri
= gbm_dri_device(gbm
);
257 struct gbm_dri_bo
*bo
;
261 if (dri
->lookup_image
== NULL
)
264 bo
= calloc(1, sizeof *bo
);
268 bo
->base
.base
.gbm
= gbm
;
269 bo
->base
.base
.width
= width
;
270 bo
->base
.base
.height
= height
;
272 __DRIimage
*tmp
= dri
->lookup_image(dri
->screen
, egl_img
,
273 dri
->lookup_user_data
);
275 bo
->image
= dri
->image
->dupImage(tmp
, bo
);
276 if (bo
->image
== NULL
)
279 dri
->image
->queryImage(bo
->image
, __DRI_IMAGE_ATTRIB_HANDLE
,
280 &bo
->base
.base
.handle
.s32
);
281 dri
->image
->queryImage(bo
->image
, __DRI_IMAGE_ATTRIB_STRIDE
,
282 (int *) &bo
->base
.base
.pitch
);
284 return &bo
->base
.base
;
287 static struct gbm_bo
*
288 gbm_dri_bo_create(struct gbm_device
*gbm
,
289 uint32_t width
, uint32_t height
,
290 enum gbm_bo_format format
, uint32_t usage
)
292 struct gbm_dri_device
*dri
= gbm_dri_device(gbm
);
293 struct gbm_dri_bo
*bo
;
295 unsigned dri_use
= 0;
297 bo
= calloc(1, sizeof *bo
);
301 bo
->base
.base
.gbm
= gbm
;
302 bo
->base
.base
.width
= width
;
303 bo
->base
.base
.height
= height
;
306 case GBM_BO_FORMAT_XRGB8888
:
307 dri_format
= __DRI_IMAGE_FORMAT_XRGB8888
;
309 case GBM_BO_FORMAT_ARGB8888
:
310 dri_format
= __DRI_IMAGE_FORMAT_ARGB8888
;
316 if (usage
& GBM_BO_USE_SCANOUT
)
317 dri_use
|= __DRI_IMAGE_USE_SCANOUT
;
318 if (usage
& GBM_BO_USE_CURSOR_64X64
)
319 dri_use
|= __DRI_IMAGE_USE_CURSOR
;
322 dri
->image
->createImage(dri
->screen
,
326 if (bo
->image
== NULL
)
329 dri
->image
->queryImage(bo
->image
, __DRI_IMAGE_ATTRIB_HANDLE
,
330 &bo
->base
.base
.handle
.s32
);
331 dri
->image
->queryImage(bo
->image
, __DRI_IMAGE_ATTRIB_STRIDE
,
332 (int *) &bo
->base
.base
.pitch
);
334 return &bo
->base
.base
;
338 dri_destroy(struct gbm_device
*gbm
)
340 struct gbm_dri_device
*dri
= gbm_dri_device(gbm
);
342 dri
->core
->destroyScreen(dri
->screen
);
343 free(dri
->driver_configs
);
344 dlclose(dri
->driver
);
345 free(dri
->base
.driver_name
);
350 static struct gbm_device
*
351 dri_device_create(int fd
)
353 struct gbm_dri_device
*dri
;
356 dri
= calloc(1, sizeof *dri
);
358 dri
->base
.base
.fd
= fd
;
359 dri
->base
.base
.bo_create
= gbm_dri_bo_create
;
360 dri
->base
.base
.bo_create_from_egl_image
= gbm_dri_bo_create_from_egl_image
;
361 dri
->base
.base
.is_format_supported
= gbm_dri_is_format_supported
;
362 dri
->base
.base
.bo_destroy
= gbm_dri_bo_destroy
;
363 dri
->base
.base
.destroy
= dri_destroy
;
365 dri
->base
.type
= GBM_DRM_DRIVER_TYPE_DRI
;
366 dri
->base
.base
.name
= "drm";
368 ret
= dri_screen_create(dri
);
374 return &dri
->base
.base
;
377 struct gbm_backend gbm_dri_backend
= {
378 .backend_name
= "dri",
379 .create_device
= dri_device_create
,