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;
41 extern struct gbm_driver gbm_driver_virtio_gpu;
43 static struct gbm_driver *gbm_get_driver(int fd)
45 drmVersionPtr drm_version;
48 drm_version = drmGetVersion(fd);
53 struct gbm_driver *driver_list[] = {
76 &gbm_driver_virtio_gpu,
79 for(i = 0; i < ARRAY_SIZE(driver_list); i++)
80 if (!strcmp(drm_version->name, driver_list[i]->name))
82 drmFreeVersion(drm_version);
83 return driver_list[i];
86 drmFreeVersion(drm_version);
91 gbm_device_get_fd(struct gbm_device *gbm)
97 gbm_device_get_backend_name(struct gbm_device *gbm)
99 return gbm->driver->name;
103 gbm_device_is_format_supported(struct gbm_device *gbm,
104 uint32_t format, uint32_t usage)
108 if (usage & GBM_BO_USE_CURSOR &&
109 usage & GBM_BO_USE_RENDERING)
112 for(i = 0 ; i < ARRAY_SIZE(gbm->driver->format_list); i++)
114 if (!gbm->driver->format_list[i].format)
117 if (gbm->driver->format_list[i].format == format &&
118 (gbm->driver->format_list[i].usage & usage) == usage)
125 PUBLIC struct gbm_device *gbm_create_device(int fd)
127 struct gbm_device *gbm;
130 gbm = (struct gbm_device*) malloc(sizeof(*gbm));
136 gbm->driver = gbm_get_driver(fd);
142 if (gbm->driver->init) {
143 ret = gbm->driver->init(gbm);
153 PUBLIC void gbm_device_destroy(struct gbm_device *gbm)
155 if (gbm->driver->close)
156 gbm->driver->close(gbm);
160 PUBLIC struct gbm_surface *gbm_surface_create(struct gbm_device *gbm,
161 uint32_t width, uint32_t height,
162 uint32_t format, uint32_t flags)
164 struct gbm_surface *surface =
165 (struct gbm_surface*) malloc(sizeof(*surface));
173 PUBLIC void gbm_surface_destroy(struct gbm_surface *surface)
178 PUBLIC struct gbm_bo *gbm_surface_lock_front_buffer(struct gbm_surface *surface)
183 PUBLIC void gbm_surface_release_buffer(struct gbm_surface *surface,
188 static struct gbm_bo *gbm_bo_new(struct gbm_device *gbm,
189 uint32_t width, uint32_t height,
194 bo = (struct gbm_bo*) calloc(1, sizeof(*bo));
202 bo->num_planes = gbm_num_planes_from_format(format);
203 if (!bo->num_planes) {
211 PUBLIC struct gbm_bo *gbm_bo_create(struct gbm_device *gbm, uint32_t width,
212 uint32_t height, uint32_t format,
218 if (!gbm_device_is_format_supported(gbm, format, flags))
221 bo = gbm_bo_new(gbm, width, height, format);
225 ret = gbm->driver->bo_create(bo, width, height, format, flags);
234 PUBLIC void gbm_bo_destroy(struct gbm_bo *bo)
236 if (bo->destroy_user_data) {
237 bo->destroy_user_data(bo, bo->user_data);
238 bo->destroy_user_data = NULL;
239 bo->user_data = NULL;
242 bo->gbm->driver->bo_destroy(bo);
246 PUBLIC struct gbm_bo *
247 gbm_bo_import(struct gbm_device *gbm, uint32_t type,
248 void *buffer, uint32_t usage)
250 struct gbm_import_fd_data *fd_data = buffer;
252 struct drm_prime_handle prime_handle;
255 if (type != GBM_BO_IMPORT_FD)
258 if (!gbm_device_is_format_supported(gbm, fd_data->format, usage))
261 /* This function can support only single plane formats. */
262 /* If multi-plane import is desired, new function should be added. */
263 if (gbm_num_planes_from_format(fd_data->format) != 1)
266 bo = gbm_bo_new(gbm, fd_data->width, fd_data->height, fd_data->format);
270 bo->strides[0] = fd_data->stride;
271 bo->sizes[0] = fd_data->height * fd_data->stride;
273 memset(&prime_handle, 0, sizeof(prime_handle));
274 prime_handle.fd = fd_data->fd;
276 ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &prime_handle);
278 fprintf(stderr, "minigbm: DRM_IOCTL_PRIME_FD_TO_HANDLE failed "
279 "(fd=%u)\n", prime_handle.fd);
284 bo->handles[0].u32 = prime_handle.handle;
290 gbm_bo_get_width(struct gbm_bo *bo)
296 gbm_bo_get_height(struct gbm_bo *bo)
302 gbm_bo_get_stride(struct gbm_bo *bo)
304 return gbm_bo_get_plane_stride(bo, 0);
308 gbm_bo_get_stride_or_tiling(struct gbm_bo *bo)
310 return bo->tiling ? bo->tiling : gbm_bo_get_stride(bo);
314 gbm_bo_get_format(struct gbm_bo *bo)
320 gbm_bo_get_format_modifier(struct gbm_bo *bo)
322 return gbm_bo_get_plane_format_modifier(bo, 0);
325 PUBLIC struct gbm_device *
326 gbm_bo_get_device(struct gbm_bo *bo)
331 PUBLIC union gbm_bo_handle
332 gbm_bo_get_handle(struct gbm_bo *bo)
334 return gbm_bo_get_plane_handle(bo, 0);
338 gbm_bo_get_fd(struct gbm_bo *bo)
340 return gbm_bo_get_plane_fd(bo, 0);
344 gbm_bo_get_num_planes(struct gbm_bo *bo)
346 return bo->num_planes;
349 PUBLIC union gbm_bo_handle
350 gbm_bo_get_plane_handle(struct gbm_bo *bo, size_t plane)
352 assert(plane < bo->num_planes);
353 return bo->handles[plane];
357 #define DRM_RDWR O_RDWR
361 gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane)
364 assert(plane < bo->num_planes);
366 if (drmPrimeHandleToFD(
367 gbm_device_get_fd(bo->gbm),
368 gbm_bo_get_plane_handle(bo, plane).u32,
369 DRM_CLOEXEC | DRM_RDWR,
377 gbm_bo_get_plane_offset(struct gbm_bo *bo, size_t plane)
379 assert(plane < bo->num_planes);
380 return bo->offsets[plane];
384 gbm_bo_get_plane_size(struct gbm_bo *bo, size_t plane)
386 assert(plane < bo->num_planes);
387 return bo->sizes[plane];
391 gbm_bo_get_plane_stride(struct gbm_bo *bo, size_t plane)
393 assert(plane < bo->num_planes);
394 return bo->strides[plane];
398 gbm_bo_get_plane_format_modifier(struct gbm_bo *bo, size_t plane)
400 assert(plane < bo->num_planes);
401 return bo->format_modifiers[plane];
405 gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
406 void (*destroy_user_data)(struct gbm_bo *, void *))
408 bo->user_data = data;
409 bo->destroy_user_data = destroy_user_data;
413 gbm_bo_get_user_data(struct gbm_bo *bo)
415 return bo->user_data;