2 * Copyright 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.
17 #include "gbm_helpers.h"
21 PUBLIC int gbm_device_get_fd(struct gbm_device *gbm)
24 return drv_get_fd(gbm->drv);
27 PUBLIC const char *gbm_device_get_backend_name(struct gbm_device *gbm)
29 return drv_get_name(gbm->drv);
32 PUBLIC int gbm_device_is_format_supported(struct gbm_device *gbm, uint32_t format, uint32_t usage)
36 if (usage & GBM_BO_USE_CURSOR && usage & GBM_BO_USE_RENDERING)
39 use_flags = gbm_convert_usage(usage);
41 return (drv_get_combination(gbm->drv, format, use_flags) != NULL);
44 PUBLIC int gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm, uint32_t format,
50 PUBLIC struct gbm_device *gbm_create_device(int fd)
52 struct gbm_device *gbm;
54 gbm = (struct gbm_device *)malloc(sizeof(*gbm));
59 gbm->drv = drv_create(fd);
68 PUBLIC void gbm_device_destroy(struct gbm_device *gbm)
70 drv_destroy(gbm->drv);
74 PUBLIC struct gbm_surface *gbm_surface_create(struct gbm_device *gbm, uint32_t width,
75 uint32_t height, uint32_t format, uint32_t usage)
77 struct gbm_surface *surface = (struct gbm_surface *)malloc(sizeof(*surface));
85 PUBLIC struct gbm_surface *gbm_surface_create_with_modifiers(struct gbm_device *gbm, uint32_t width,
86 uint32_t height, uint32_t format,
87 const uint64_t *modifiers,
88 const unsigned int count)
90 if (count != 0 || modifiers != NULL)
93 return gbm_surface_create(gbm, width, height, format, 0);
96 PUBLIC struct gbm_bo *gbm_surface_lock_front_buffer(struct gbm_surface *surface)
101 PUBLIC void gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo)
105 PUBLIC int gbm_surface_has_free_buffers(struct gbm_surface *surface)
110 PUBLIC void gbm_surface_destroy(struct gbm_surface *surface)
115 static struct gbm_bo *gbm_bo_new(struct gbm_device *gbm, uint32_t format)
119 bo = (struct gbm_bo *)calloc(1, sizeof(*bo));
124 bo->gbm_format = format;
129 PUBLIC struct gbm_bo *gbm_bo_create(struct gbm_device *gbm, uint32_t width, uint32_t height,
130 uint32_t format, uint32_t usage)
134 if (!gbm_device_is_format_supported(gbm, format, usage))
137 bo = gbm_bo_new(gbm, format);
143 * HACK: This is for HAL_PIXEL_FORMAT_YV12 buffers allocated by arcvm.
144 * None of our platforms can display YV12, so we can treat as a SW buffer.
145 * Remove once this can be intelligently resolved in the guest.
147 if (format == GBM_FORMAT_YVU420 && (usage & GBM_BO_USE_LINEAR))
148 format = DRM_FORMAT_YVU420_ANDROID;
150 bo->bo = drv_bo_create(gbm->drv, width, height, format, gbm_convert_usage(usage));
160 PUBLIC struct gbm_bo *gbm_bo_create_with_modifiers(struct gbm_device *gbm, uint32_t width,
161 uint32_t height, uint32_t format,
162 const uint64_t *modifiers, uint32_t count)
166 bo = gbm_bo_new(gbm, format);
171 bo->bo = drv_bo_create_with_modifiers(gbm->drv, width, height, format, modifiers, count);
181 PUBLIC void gbm_bo_destroy(struct gbm_bo *bo)
183 if (bo->destroy_user_data) {
184 bo->destroy_user_data(bo, bo->user_data);
185 bo->destroy_user_data = NULL;
186 bo->user_data = NULL;
189 drv_bo_destroy(bo->bo);
193 PUBLIC struct gbm_bo *gbm_bo_import(struct gbm_device *gbm, uint32_t type, void *buffer,
197 struct drv_import_fd_data drv_data;
198 struct gbm_import_fd_data *fd_data = buffer;
199 struct gbm_import_fd_modifier_data *fd_modifier_data = buffer;
201 size_t num_planes, i, num_fds;
203 memset(&drv_data, 0, sizeof(drv_data));
204 drv_data.use_flags = gbm_convert_usage(usage);
206 case GBM_BO_IMPORT_FD:
207 gbm_format = fd_data->format;
208 drv_data.width = fd_data->width;
209 drv_data.height = fd_data->height;
210 drv_data.format = fd_data->format;
211 drv_data.fds[0] = fd_data->fd;
212 drv_data.strides[0] = fd_data->stride;
214 for (i = 0; i < GBM_MAX_PLANES; ++i)
215 drv_data.format_modifiers[i] = DRM_FORMAT_MOD_INVALID;
217 case GBM_BO_IMPORT_FD_MODIFIER:
218 gbm_format = fd_modifier_data->format;
219 drv_data.width = fd_modifier_data->width;
220 drv_data.height = fd_modifier_data->height;
221 drv_data.format = fd_modifier_data->format;
222 num_planes = drv_num_planes_from_modifier(gbm->drv, drv_data.format,
223 fd_modifier_data->modifier);
226 num_fds = fd_modifier_data->num_fds;
227 if (!num_fds || num_fds > num_planes)
230 for (i = 0; i < num_planes; i++) {
231 if (num_fds != num_planes)
232 drv_data.fds[i] = fd_modifier_data->fds[0];
234 drv_data.fds[i] = fd_modifier_data->fds[i];
235 drv_data.offsets[i] = fd_modifier_data->offsets[i];
236 drv_data.strides[i] = fd_modifier_data->strides[i];
237 drv_data.format_modifiers[i] = fd_modifier_data->modifier;
240 for (i = num_planes; i < GBM_MAX_PLANES; i++)
241 drv_data.fds[i] = -1;
248 if (!gbm_device_is_format_supported(gbm, gbm_format, usage))
251 bo = gbm_bo_new(gbm, gbm_format);
256 bo->bo = drv_bo_import(gbm->drv, &drv_data);
266 PUBLIC void gbm_bo_unmap(struct gbm_bo *bo, void *map_data)
269 drv_bo_flush_or_unmap(bo->bo, map_data);
272 PUBLIC uint32_t gbm_bo_get_width(struct gbm_bo *bo)
274 return drv_bo_get_width(bo->bo);
277 PUBLIC uint32_t gbm_bo_get_height(struct gbm_bo *bo)
279 return drv_bo_get_height(bo->bo);
282 PUBLIC uint32_t gbm_bo_get_stride(struct gbm_bo *bo)
284 return gbm_bo_get_stride_for_plane(bo, 0);
287 PUBLIC uint32_t gbm_bo_get_format(struct gbm_bo *bo)
289 return bo->gbm_format;
292 PUBLIC uint32_t gbm_bo_get_bpp(struct gbm_bo *bo)
294 return drv_bytes_per_pixel_from_format(drv_bo_get_format(bo->bo), 0);
297 PUBLIC uint64_t gbm_bo_get_modifier(struct gbm_bo *bo)
299 return drv_bo_get_plane_format_modifier(bo->bo, 0);
302 PUBLIC struct gbm_device *gbm_bo_get_device(struct gbm_bo *bo)
307 PUBLIC union gbm_bo_handle gbm_bo_get_handle(struct gbm_bo *bo)
309 return gbm_bo_get_handle_for_plane(bo, 0);
312 PUBLIC int gbm_bo_get_fd(struct gbm_bo *bo)
314 return gbm_bo_get_plane_fd(bo, 0);
317 PUBLIC int gbm_bo_get_plane_count(struct gbm_bo *bo)
319 return drv_bo_get_num_planes(bo->bo);
322 PUBLIC union gbm_bo_handle gbm_bo_get_handle_for_plane(struct gbm_bo *bo, size_t plane)
324 return (union gbm_bo_handle)drv_bo_get_plane_handle(bo->bo, (size_t)plane).u64;
327 PUBLIC uint32_t gbm_bo_get_offset(struct gbm_bo *bo, size_t plane)
329 return drv_bo_get_plane_offset(bo->bo, (size_t)plane);
332 PUBLIC uint32_t gbm_bo_get_stride_for_plane(struct gbm_bo *bo, size_t plane)
334 return drv_bo_get_plane_stride(bo->bo, (size_t)plane);
337 PUBLIC void gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
338 void (*destroy_user_data)(struct gbm_bo *, void *))
340 bo->user_data = data;
341 bo->destroy_user_data = destroy_user_data;
344 PUBLIC void *gbm_bo_get_user_data(struct gbm_bo *bo)
346 return bo->user_data;
349 /* The two GBM_BO_FORMAT_[XA]RGB8888 formats alias the GBM_FORMAT_*
350 * formats of the same name. We want to accept them whenever someone
351 * has a GBM format, but never return them to the user.
353 static uint32_t gbm_format_canonicalize(uint32_t gbm_format)
355 switch (gbm_format) {
356 case GBM_BO_FORMAT_XRGB8888:
357 return GBM_FORMAT_XRGB8888;
358 case GBM_BO_FORMAT_ARGB8888:
359 return GBM_FORMAT_ARGB8888;
366 * Returns a string representing the fourcc format name.
368 PUBLIC char *gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc)
370 gbm_format = gbm_format_canonicalize(gbm_format);
372 desc->name[0] = gbm_format;
373 desc->name[1] = gbm_format >> 8;
374 desc->name[2] = gbm_format >> 16;
375 desc->name[3] = gbm_format >> 24;
382 * The following functions are not deprecated, but not in the Mesa the gbm
383 * header. The main difference is minigbm allows for the possibility of
384 * disjoint YUV images, while Mesa GBM does not.
386 PUBLIC uint32_t gbm_bo_get_plane_size(struct gbm_bo *bo, size_t plane)
388 return drv_bo_get_plane_size(bo->bo, plane);
391 PUBLIC int gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane)
393 return drv_bo_get_plane_fd(bo->bo, plane);
396 PUBLIC void *gbm_bo_map(struct gbm_bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height,
397 uint32_t transfer_flags, uint32_t *stride, void **map_data, size_t plane)
399 return gbm_bo_map2(bo, x, y, width, height, transfer_flags, stride, map_data, plane);
402 PUBLIC void *gbm_bo_map2(struct gbm_bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height,
403 uint32_t transfer_flags, uint32_t *stride, void **map_data, int plane)
408 plane = (size_t)plane;
409 struct rectangle rect = { .x = x, .y = y, .width = width, .height = height };
410 if (!bo || width == 0 || height == 0 || !stride || !map_data)
413 map_flags = (transfer_flags & GBM_BO_TRANSFER_READ) ? BO_MAP_READ : BO_MAP_NONE;
414 map_flags |= (transfer_flags & GBM_BO_TRANSFER_WRITE) ? BO_MAP_WRITE : BO_MAP_NONE;
416 addr = drv_bo_map(bo->bo, &rect, map_flags, (struct mapping **)map_data, plane);
417 if (addr == MAP_FAILED)
420 *stride = ((struct mapping *)*map_data)->vma->map_strides[plane];
422 offset = *stride * rect.y;
423 offset += rect.x * drv_bytes_per_pixel_from_format(bo->gbm_format, plane);
424 return (void *)((uint8_t *)addr + offset);