| /* |
| * 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 <sys/mman.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 int gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm, uint32_t format, |
| uint64_t modifier) |
| { |
| return 0; |
| } |
| |
| 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 struct gbm_surface *gbm_surface_create_with_modifiers(struct gbm_device *gbm, uint32_t width, |
| uint32_t height, uint32_t format, |
| const uint64_t *modifiers, |
| const unsigned int count) |
| { |
| if (count != 0 || modifiers != NULL) |
| return NULL; |
| |
| return gbm_surface_create(gbm, width, height, format, 0); |
| } |
| |
| 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) |
| { |
| } |
| |
| PUBLIC int gbm_surface_has_free_buffers(struct gbm_surface *surface) |
| { |
| return 0; |
| } |
| |
| PUBLIC void gbm_surface_destroy(struct gbm_surface *surface) |
| { |
| free(surface); |
| } |
| |
| 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; |
| |
| /* |
| * HACK: See b/132939420. This is for HAL_PIXEL_FORMAT_YV12 buffers allocated by arcvm. None |
| * of our platforms can display YV12, so we can treat as a SW buffer. Remove once this can |
| * be intelligently resolved in the guest. Also see virgl_resolve_use_flags. |
| */ |
| if (format == GBM_FORMAT_YVU420 && (usage & GBM_BO_USE_LINEAR)) |
| format = DRM_FORMAT_YVU420_ANDROID; |
| |
| 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 = { 0 }; |
| struct gbm_import_fd_data *fd_data = buffer; |
| struct gbm_import_fd_modifier_data *fd_modifier_data = buffer; |
| uint32_t gbm_format; |
| size_t num_planes, i, num_fds; |
| |
| 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; |
| drv_data.format_modifier = DRM_FORMAT_MOD_INVALID; |
| |
| break; |
| case GBM_BO_IMPORT_FD_MODIFIER: |
| gbm_format = fd_modifier_data->format; |
| drv_data.width = fd_modifier_data->width; |
| drv_data.height = fd_modifier_data->height; |
| drv_data.format = fd_modifier_data->format; |
| num_planes = drv_num_planes_from_modifier(gbm->drv, drv_data.format, |
| fd_modifier_data->modifier); |
| assert(num_planes); |
| |
| num_fds = fd_modifier_data->num_fds; |
| if (!num_fds || num_fds > num_planes) |
| return NULL; |
| |
| drv_data.format_modifier = fd_modifier_data->modifier; |
| for (i = 0; i < num_planes; i++) { |
| if (num_fds != num_planes) |
| drv_data.fds[i] = fd_modifier_data->fds[0]; |
| else |
| drv_data.fds[i] = fd_modifier_data->fds[i]; |
| drv_data.offsets[i] = fd_modifier_data->offsets[i]; |
| drv_data.strides[i] = fd_modifier_data->strides[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 transfer_flags, uint32_t *stride, void **map_data) |
| { |
| return gbm_bo_map2(bo, x, y, width, height, transfer_flags, stride, map_data, 0); |
| } |
| |
| PUBLIC void gbm_bo_unmap(struct gbm_bo *bo, void *map_data) |
| { |
| assert(bo); |
| drv_bo_flush_or_unmap(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_stride_for_plane(bo, 0); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_format(struct gbm_bo *bo) |
| { |
| return bo->gbm_format; |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_bpp(struct gbm_bo *bo) |
| { |
| return drv_bytes_per_pixel_from_format(drv_bo_get_format(bo->bo), 0); |
| } |
| |
| PUBLIC uint64_t gbm_bo_get_modifier(struct gbm_bo *bo) |
| { |
| return drv_bo_get_format_modifier(bo->bo); |
| } |
| |
| 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_handle_for_plane(bo, 0); |
| } |
| |
| PUBLIC int gbm_bo_get_fd(struct gbm_bo *bo) |
| { |
| return gbm_bo_get_plane_fd(bo, 0); |
| } |
| |
| PUBLIC int gbm_bo_get_plane_count(struct gbm_bo *bo) |
| { |
| return drv_bo_get_num_planes(bo->bo); |
| } |
| |
| PUBLIC union gbm_bo_handle gbm_bo_get_handle_for_plane(struct gbm_bo *bo, size_t plane) |
| { |
| return (union gbm_bo_handle)drv_bo_get_plane_handle(bo->bo, (size_t)plane).u64; |
| } |
| |
| PUBLIC int gbm_bo_get_fd_for_plane(struct gbm_bo *bo, int plane) |
| { |
| return drv_bo_get_plane_fd(bo->bo, plane); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_offset(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_offset(bo->bo, (size_t)plane); |
| } |
| |
| PUBLIC uint32_t gbm_bo_get_stride_for_plane(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_stride(bo->bo, (size_t)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; |
| } |
| |
| /* The two GBM_BO_FORMAT_[XA]RGB8888 formats alias the GBM_FORMAT_* |
| * formats of the same name. We want to accept them whenever someone |
| * has a GBM format, but never return them to the user. |
| */ |
| static uint32_t gbm_format_canonicalize(uint32_t gbm_format) |
| { |
| switch (gbm_format) { |
| case GBM_BO_FORMAT_XRGB8888: |
| return GBM_FORMAT_XRGB8888; |
| case GBM_BO_FORMAT_ARGB8888: |
| return GBM_FORMAT_ARGB8888; |
| default: |
| return gbm_format; |
| } |
| } |
| |
| /** |
| * Returns a string representing the fourcc format name. |
| */ |
| PUBLIC char *gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc) |
| { |
| gbm_format = gbm_format_canonicalize(gbm_format); |
| |
| desc->name[0] = gbm_format; |
| desc->name[1] = gbm_format >> 8; |
| desc->name[2] = gbm_format >> 16; |
| desc->name[3] = gbm_format >> 24; |
| desc->name[4] = 0; |
| |
| return desc->name; |
| } |
| |
| /* |
| * The following functions are not deprecated, but not in the Mesa the gbm |
| * header. The main difference is minigbm allows for the possibility of |
| * disjoint YUV images, while Mesa GBM does not. |
| */ |
| 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 int gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane) |
| { |
| return drv_bo_get_plane_fd(bo->bo, plane); |
| } |
| |
| PUBLIC void *gbm_bo_map2(struct gbm_bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height, |
| uint32_t transfer_flags, uint32_t *stride, void **map_data, int plane) |
| { |
| void *addr; |
| off_t offset; |
| uint32_t map_flags; |
| plane = (size_t)plane; |
| struct rectangle rect = { .x = x, .y = y, .width = width, .height = height }; |
| if (!bo || width == 0 || height == 0 || !stride || !map_data) |
| return NULL; |
| |
| map_flags = (transfer_flags & GBM_BO_TRANSFER_READ) ? BO_MAP_READ : BO_MAP_NONE; |
| map_flags |= (transfer_flags & GBM_BO_TRANSFER_WRITE) ? BO_MAP_WRITE : BO_MAP_NONE; |
| |
| addr = drv_bo_map(bo->bo, &rect, map_flags, (struct mapping **)map_data, plane); |
| if (addr == MAP_FAILED) |
| return MAP_FAILED; |
| |
| *stride = ((struct mapping *)*map_data)->vma->map_strides[plane]; |
| |
| offset = *stride * rect.y; |
| offset += rect.x * drv_bytes_per_pixel_from_format(bo->gbm_format, plane); |
| return (void *)((uint8_t *)addr + offset); |
| } |