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>
36 #include <sys/types.h>
45 #define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
47 struct gbm_device *devices[16];
49 static int device_num = 0;
52 gbm_device_get_fd(struct gbm_device *gbm)
57 /* FIXME: maybe superfluous, use udev subclass from the fd? */
58 GBM_EXPORT const char *
59 gbm_device_get_backend_name(struct gbm_device *gbm)
65 gbm_device_is_format_supported(struct gbm_device *gbm,
66 enum gbm_bo_format format,
69 return gbm->is_format_supported(gbm, format, usage);
73 gbm_device_destroy(struct gbm_device *gbm)
76 if (gbm->refcount == 0)
80 GBM_EXPORT struct gbm_device *
81 _gbm_mesa_get_device(int fd)
83 struct gbm_device *gbm = NULL;
88 if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
89 fprintf(stderr, "_gbm_mesa_get_device: invalid fd: %d\n", fd);
93 for (i = 0; i < device_num; ++i) {
94 dev = devices[i]->stat.st_rdev;
95 if (major(dev) == major(buf.st_rdev) &&
96 minor(dev) == minor(buf.st_rdev)) {
106 GBM_EXPORT struct gbm_device *
107 gbm_create_device(int fd)
109 struct gbm_device *gbm = NULL;
112 if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
113 fprintf(stderr, "gbm_create_device: invalid fd: %d\n", fd);
118 memset(devices, 0, sizeof devices);
120 gbm = _gbm_create_device(fd);
124 gbm->dummy = gbm_create_device;
128 if (device_num < ARRAY_SIZE(devices)-1)
129 devices[device_num++] = gbm;
134 GBM_EXPORT unsigned int
135 gbm_bo_get_width(struct gbm_bo *bo)
140 GBM_EXPORT unsigned int
141 gbm_bo_get_height(struct gbm_bo *bo)
147 gbm_bo_get_pitch(struct gbm_bo *bo)
152 GBM_EXPORT union gbm_bo_handle
153 gbm_bo_get_handle(struct gbm_bo *bo)
159 gbm_bo_destroy(struct gbm_bo *bo)
161 bo->gbm->bo_destroy(bo);
164 GBM_EXPORT struct gbm_bo *
165 gbm_bo_create(struct gbm_device *gbm,
166 uint32_t width, uint32_t height,
167 enum gbm_bo_format format, uint32_t usage)
169 if (width == 0 || height == 0)
172 if (usage & GBM_BO_USE_CURSOR_64X64 &&
173 (width != 64 || height != 64))
176 return gbm->bo_create(gbm, width, height, format, usage);
179 GBM_EXPORT struct gbm_bo *
180 gbm_bo_create_from_egl_image(struct gbm_device *gbm,
181 void *egl_dpy, void *egl_image,
182 uint32_t width, uint32_t height,
185 if (width == 0 || height == 0)
188 return gbm->bo_create_from_egl_image(gbm, egl_dpy, egl_image,
189 width, height, usage);