2 * Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
19 extern struct gbm_driver gbm_driver_cirrus;
20 extern struct gbm_driver gbm_driver_evdi;
22 extern struct gbm_driver gbm_driver_exynos;
24 extern struct gbm_driver gbm_driver_gma500;
26 extern struct gbm_driver gbm_driver_i915;
29 extern struct gbm_driver gbm_driver_marvell;
32 extern struct gbm_driver gbm_driver_mediatek;
35 extern struct gbm_driver gbm_driver_rockchip;
38 extern struct gbm_driver gbm_driver_tegra;
40 extern struct gbm_driver gbm_driver_udl;
42 static struct gbm_driver *gbm_get_driver(int fd)
44 drmVersionPtr drm_version;
47 drm_version = drmGetVersion(fd);
52 struct gbm_driver *driver_list[] = {
77 for(i = 0; i < ARRAY_SIZE(driver_list); i++)
78 if (!strcmp(drm_version->name, driver_list[i]->name))
80 drmFreeVersion(drm_version);
81 return driver_list[i];
84 drmFreeVersion(drm_version);
89 gbm_device_get_fd(struct gbm_device *gbm)
95 gbm_device_get_backend_name(struct gbm_device *gbm)
97 return gbm->driver->name;
101 gbm_device_is_format_supported(struct gbm_device *gbm,
102 uint32_t format, uint32_t usage)
106 if (format == GBM_BO_FORMAT_XRGB8888)
107 format = GBM_FORMAT_XRGB8888;
108 if (format == GBM_BO_FORMAT_ARGB8888)
109 format = GBM_FORMAT_ARGB8888;
111 if (usage & GBM_BO_USE_CURSOR &&
112 usage & GBM_BO_USE_RENDERING)
115 for(i = 0 ; i < ARRAY_SIZE(gbm->driver->format_list); i++)
117 if (!gbm->driver->format_list[i].format)
120 if (gbm->driver->format_list[i].format == format &&
121 (gbm->driver->format_list[i].usage & usage) == usage)
128 PUBLIC struct gbm_device *gbm_create_device(int fd)
130 struct gbm_device *gbm;
133 gbm = (struct gbm_device*) malloc(sizeof(*gbm));
139 gbm->driver = gbm_get_driver(fd);
145 if (gbm->driver->init) {
146 ret = gbm->driver->init(gbm);
156 PUBLIC void gbm_device_destroy(struct gbm_device *gbm)
158 if (gbm->driver->close)
159 gbm->driver->close(gbm);
163 PUBLIC struct gbm_surface *gbm_surface_create(struct gbm_device *gbm,
164 uint32_t width, uint32_t height,
165 uint32_t format, uint32_t flags)
167 struct gbm_surface *surface =
168 (struct gbm_surface*) malloc(sizeof(*surface));
176 PUBLIC void gbm_surface_destroy(struct gbm_surface *surface)
181 PUBLIC struct gbm_bo *gbm_surface_lock_front_buffer(struct gbm_surface *surface)
186 PUBLIC void gbm_surface_release_buffer(struct gbm_surface *surface,
191 static struct gbm_bo *gbm_bo_new(struct gbm_device *gbm,
192 uint32_t width, uint32_t height,
197 bo = (struct gbm_bo*) calloc(1, sizeof(*bo));
205 bo->num_planes = gbm_num_planes_from_format(format);
206 if (!bo->num_planes) {
214 PUBLIC struct gbm_bo *gbm_bo_create(struct gbm_device *gbm, uint32_t width,
215 uint32_t height, uint32_t format,
221 if (!gbm_device_is_format_supported(gbm, format, flags))
224 bo = gbm_bo_new(gbm, width, height, format);
228 ret = gbm->driver->bo_create(bo, width, height, format, flags);
237 PUBLIC void gbm_bo_destroy(struct gbm_bo *bo)
239 if (bo->destroy_user_data) {
240 bo->destroy_user_data(bo, bo->user_data);
241 bo->destroy_user_data = NULL;
242 bo->user_data = NULL;
245 bo->gbm->driver->bo_destroy(bo);
249 PUBLIC struct gbm_bo *
250 gbm_bo_import(struct gbm_device *gbm, uint32_t type,
251 void *buffer, uint32_t usage)
253 struct gbm_import_fd_data *fd_data = buffer;
255 struct drm_prime_handle prime_handle;
258 if (type != GBM_BO_IMPORT_FD)
261 if (!gbm_device_is_format_supported(gbm, fd_data->format, usage))
264 /* This function can support only single plane formats. */
265 /* If multi-plane import is desired, new function should be added. */
266 if (gbm_num_planes_from_format(fd_data->format) != 1)
269 bo = gbm_bo_new(gbm, fd_data->width, fd_data->height, fd_data->format);
270 bo->strides[0] = fd_data->stride;
275 prime_handle.fd = fd_data->fd;
277 ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &prime_handle);
279 fprintf(stderr, "minigbm: DRM_IOCTL_PRIME_FD_TO_HANDLE failed "
280 "(fd=%u)\n", prime_handle.fd);
285 bo->handles[0].u32 = prime_handle.handle;
291 gbm_bo_get_width(struct gbm_bo *bo)
297 gbm_bo_get_height(struct gbm_bo *bo)
303 gbm_bo_get_stride(struct gbm_bo *bo)
305 return gbm_bo_get_plane_stride(bo, 0);
309 gbm_bo_get_stride_or_tiling(struct gbm_bo *bo)
311 return bo->tiling ? bo->tiling : gbm_bo_get_stride(bo);
315 gbm_bo_get_format(struct gbm_bo *bo)
320 PUBLIC struct gbm_device *
321 gbm_bo_get_device(struct gbm_bo *bo)
326 PUBLIC union gbm_bo_handle
327 gbm_bo_get_handle(struct gbm_bo *bo)
329 return gbm_bo_get_plane_handle(bo, 0);
333 gbm_bo_get_fd(struct gbm_bo *bo)
335 return gbm_bo_get_plane_fd(bo, 0);
339 gbm_bo_get_num_planes(struct gbm_bo *bo)
341 return bo->num_planes;
344 PUBLIC union gbm_bo_handle
345 gbm_bo_get_plane_handle(struct gbm_bo *bo, size_t plane)
347 assert(plane < bo->num_planes);
348 return bo->handles[plane];
352 gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane)
355 assert(plane < bo->num_planes);
357 if (drmPrimeHandleToFD(
358 gbm_device_get_fd(bo->gbm),
359 gbm_bo_get_plane_handle(bo, plane).u32,
368 gbm_bo_get_plane_offset(struct gbm_bo *bo, size_t plane)
370 assert(plane < bo->num_planes);
371 return bo->offsets[plane];
375 gbm_bo_get_plane_size(struct gbm_bo *bo, size_t plane)
377 assert(plane < bo->num_planes);
378 return bo->sizes[plane];
382 gbm_bo_get_plane_stride(struct gbm_bo *bo, size_t plane)
384 assert(plane < bo->num_planes);
385 return bo->strides[plane];
389 gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
390 void (*destroy_user_data)(struct gbm_bo *, void *))
392 bo->user_data = data;
393 bo->destroy_user_data = destroy_user_data;
397 gbm_bo_get_user_data(struct gbm_bo *bo)
399 return bo->user_data;