| /* |
| * Copyright 2014 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include <assert.h> |
| #include <fcntl.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <xf86drm.h> |
| |
| #include "drv.h" |
| #include "gbm_helpers.h" |
| #include "gbm_priv.h" |
| #include "util.h" |
| |
| PUBLIC int gbm_device_get_fd(struct gbm_device *gbm) |
| { |
| |
| return drv_get_fd(gbm->drv); |
| } |
| |
| PUBLIC const char *gbm_device_get_backend_name(struct gbm_device *gbm) |
| { |
| return drv_get_name(gbm->drv); |
| } |
| |
| PUBLIC int gbm_device_is_format_supported(struct gbm_device *gbm, uint32_t format, uint32_t usage) |
| { |
| uint64_t use_flags; |
| |
| if (usage & GBM_BO_USE_CURSOR && usage & GBM_BO_USE_RENDERING) |
| return 0; |
| |
| use_flags = gbm_convert_usage(usage); |
| |
| return (drv_get_combination(gbm->drv, format, use_flags) != NULL); |
| } |
| |
| PUBLIC struct gbm_device *gbm_create_device(int fd) |
| { |
| struct gbm_device *gbm; |
| |
| gbm = (struct gbm_device *)malloc(sizeof(*gbm)); |
| |
| if (!gbm) |
| return NULL; |
| |
| gbm->drv = drv_create(fd); |
| if (!gbm->drv) { |
| free(gbm); |
| return NULL; |
| } |
| |
| return gbm; |
| } |
| |
| PUBLIC void gbm_device_destroy(struct gbm_device *gbm) |
| { |
| drv_destroy(gbm->drv); |
| free(gbm); |
| } |
| |
| PUBLIC struct gbm_surface *gbm_surface_create(struct gbm_device *gbm, uint32_t width, |
| uint32_t height, uint32_t format, uint32_t usage) |
| { |
| struct gbm_surface *surface = (struct gbm_surface *)malloc(sizeof(*surface)); |
| |
| if (!surface) |
| return NULL; |
| |
| return surface; |
| } |
| |
| PUBLIC void gbm_surface_destroy(struct gbm_surface *surface) |
| { |
| free(surface); |
| } |
| |
| PUBLIC struct gbm_bo *gbm_surface_lock_front_buffer(struct gbm_surface *surface) |
| { |
| return NULL; |
| } |
| |
| PUBLIC void gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo) |
| { |
| } |
| |
| static struct gbm_bo *gbm_bo_new(struct gbm_device *gbm, uint32_t format) |
| { |
| struct gbm_bo *bo; |
| |
| bo = (struct gbm_bo *)calloc(1, sizeof(*bo)); |
| if (!bo) |
| return NULL; |
| |
| bo->gbm = gbm; |
| bo->gbm_format = format; |
| |
| return bo; |
| } |
| |
| PUBLIC struct gbm_bo *gbm_bo_create(struct gbm_device *gbm, uint32_t width, uint32_t height, |
| uint32_t format, uint32_t usage) |
| { |
| struct gbm_bo *bo; |
| |
| if (!gbm_device_is_format_supported(gbm, format, usage)) |
| return NULL; |
| |
| bo = gbm_bo_new(gbm, format); |
| |
| if (!bo) |
| return NULL; |
| |
| bo->bo = drv_bo_create(gbm->drv, width, height, format, gbm_convert_usage(usage)); |
| |
| if (!bo->bo) { |
| free(bo); |
| return NULL; |
| } |
| |
| return bo; |
| } |
| |
| PUBLIC struct gbm_bo *gbm_bo_create_with_modifiers(struct gbm_device *gbm, uint32_t width, |
| uint32_t height, uint32_t format, |
| const uint64_t *modifiers, uint32_t count) |
| { |
| struct gbm_bo *bo; |
| |
| bo = gbm_bo_new(gbm, format); |
| |
| if (!bo) |
| return NULL; |
| |
| bo->bo = drv_bo_create_with_modifiers(gbm->drv, width, height, format, modifiers, count); |
| |
| if (!bo->bo) { |
| free(bo); |
| return NULL; |
| } |
| |
| return bo; |
| } |
| |
| PUBLIC void gbm_bo_destroy(struct gbm_bo *bo) |
| { |
| if (bo->destroy_user_data) { |
| bo->destroy_user_data(bo, bo->user_data); |
| bo->destroy_user_data = NULL; |
| bo->user_data = NULL; |
| } |
| |
| drv_bo_destroy(bo->bo); |
| free(bo); |
| } |
| |
| PUBLIC struct gbm_bo *gbm_bo_import(struct gbm_device *gbm, uint32_t type, void *buffer, |
| uint32_t usage) |
| { |
| struct gbm_bo *bo; |
| struct drv_import_fd_data drv_data; |
| struct gbm_import_fd_data *fd_data = buffer; |
| struct gbm_import_fd_planar_data *fd_planar_data = buffer; |
| uint32_t gbm_format; |
| size_t num_planes, i; |
| |
| memset(&drv_data, 0, sizeof(drv_data)); |
| drv_data.use_flags = gbm_convert_usage(usage); |
| switch (type) { |
| case GBM_BO_IMPORT_FD: |
| gbm_format = fd_data->format; |
| drv_data.width = fd_data->width; |
| drv_data.height = fd_data->height; |
| drv_data.format = fd_data->format; |
| drv_data.fds[0] = fd_data->fd; |
| drv_data.strides[0] = fd_data->stride; |
| break; |
| case GBM_BO_IMPORT_FD_PLANAR: |
| gbm_format = fd_planar_data->format; |
| drv_data.width = fd_planar_data->width; |
| drv_data.height = fd_planar_data->height; |
| drv_data.format = fd_planar_data->format; |
| num_planes = drv_num_planes_from_format(drv_data.format); |
| |
| assert(num_planes); |
| |
| for (i = 0; i < num_planes; i++) { |
| drv_data.fds[i] = fd_planar_data->fds[i]; |
| drv_data.offsets[i] = fd_planar_data->offsets[i]; |
| drv_data.strides[i] = fd_planar_data->strides[i]; |
| drv_data.format_modifiers[i] = fd_planar_data->format_modifiers[i]; |
| } |
| |
| for (i = num_planes; i < GBM_MAX_PLANES; i++) |
| drv_data.fds[i] = -1; |
| |
| break; |
| default: |
| return NULL; |
| } |
| |
| if (!gbm_device_is_format_supported(gbm, gbm_format, usage)) |
| return NULL; |
| |
| bo = gbm_bo_new(gbm, gbm_format); |
| |
| if (!bo) |
| return NULL; |
| |
| bo->bo = drv_bo_import(gbm->drv, &drv_data); |
| |
| if (!bo->bo) { |
| free(bo); |
| return NULL; |
| } |
| |
| return bo; |
| } |
| |
| PUBLIC void *gbm_bo_map(struct gbm_bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height, |
| uint32_t flags, uint32_t *stride, void **map_data, size_t plane) |
| { |
| if (!bo || width == 0 || height == 0 || !stride || !map_data) |
| return NULL; |
| |
| *stride = gbm_bo_get_plane_stride(bo, plane); |
| uint32_t drv_flags = flags & GBM_BO_TRANSFER_READ ? BO_TRANSFER_READ : BO_TRANSFER_NONE; |
| drv_flags |= flags & GBM_BO_TRANSFER_WRITE ? BO_TRANSFER_WRITE : BO_TRANSFER_NONE; |
| return drv_bo_map(bo->bo, x, y, width, height, drv_flags, (struct map_info **)map_data, |
| plane); |
| } |
| |
| PUBLIC void gbm_bo_unmap(struct gbm_bo *bo, void *map_data) |
| { |
| assert(bo); |
| drv_bo_flush(bo->bo, map_data); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_width(struct gbm_bo *bo) |
| { |
| return drv_bo_get_width(bo->bo); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_height(struct gbm_bo *bo) |
| { |
| return drv_bo_get_height(bo->bo); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_stride(struct gbm_bo *bo) |
| { |
| return gbm_bo_get_plane_stride(bo, 0); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_stride_or_tiling(struct gbm_bo *bo) |
| { |
| return drv_bo_get_stride_or_tiling(bo->bo); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_format(struct gbm_bo *bo) |
| { |
| return bo->gbm_format; |
| } |
| |
| PUBLIC uint64_t gbm_bo_get_format_modifier(struct gbm_bo *bo) |
| { |
| return gbm_bo_get_plane_format_modifier(bo, 0); |
| } |
| |
| PUBLIC struct gbm_device *gbm_bo_get_device(struct gbm_bo *bo) |
| { |
| return bo->gbm; |
| } |
| |
| PUBLIC union gbm_bo_handle gbm_bo_get_handle(struct gbm_bo *bo) |
| { |
| return gbm_bo_get_plane_handle(bo, 0); |
| } |
| |
| PUBLIC int gbm_bo_get_fd(struct gbm_bo *bo) |
| { |
| return gbm_bo_get_plane_fd(bo, 0); |
| } |
| |
| PUBLIC size_t gbm_bo_get_num_planes(struct gbm_bo *bo) |
| { |
| return drv_bo_get_num_planes(bo->bo); |
| } |
| |
| PUBLIC union gbm_bo_handle gbm_bo_get_plane_handle(struct gbm_bo *bo, size_t plane) |
| { |
| return (union gbm_bo_handle)drv_bo_get_plane_handle(bo->bo, plane).u64; |
| } |
| |
| PUBLIC int gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_fd(bo->bo, plane); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_plane_offset(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_offset(bo->bo, plane); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_plane_size(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_size(bo->bo, plane); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_plane_stride(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_stride(bo->bo, plane); |
| } |
| |
| PUBLIC uint64_t gbm_bo_get_plane_format_modifier(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_format_modifier(bo->bo, plane); |
| } |
| |
| PUBLIC void gbm_bo_set_user_data(struct gbm_bo *bo, void *data, |
| void (*destroy_user_data)(struct gbm_bo *, void *)) |
| { |
| bo->user_data = data; |
| bo->destroy_user_data = destroy_user_data; |
| } |
| |
| PUBLIC void *gbm_bo_get_user_data(struct gbm_bo *bo) |
| { |
| return bo->user_data; |
| } |