| /* |
| * Copyright 2016 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. |
| */ |
| |
| #ifndef DRV_H_ |
| #define DRV_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <drm_fourcc.h> |
| #include <stdint.h> |
| |
| #define DRV_MAX_PLANES 4 |
| |
| // clang-format off |
| /* Use flags */ |
| #define BO_USE_NONE 0 |
| #define BO_USE_SCANOUT (1ull << 0) |
| #define BO_USE_CURSOR (1ull << 1) |
| #define BO_USE_CURSOR_64X64 BO_USE_CURSOR |
| #define BO_USE_RENDERING (1ull << 2) |
| #define BO_USE_LINEAR (1ull << 3) |
| #define BO_USE_SW_READ_NEVER (1ull << 4) |
| #define BO_USE_SW_READ_RARELY (1ull << 5) |
| #define BO_USE_SW_READ_OFTEN (1ull << 6) |
| #define BO_USE_SW_WRITE_NEVER (1ull << 7) |
| #define BO_USE_SW_WRITE_RARELY (1ull << 8) |
| #define BO_USE_SW_WRITE_OFTEN (1ull << 9) |
| #define BO_USE_EXTERNAL_DISP (1ull << 10) |
| #define BO_USE_PROTECTED (1ull << 11) |
| #define BO_USE_HW_VIDEO_ENCODER (1ull << 12) |
| #define BO_USE_CAMERA_WRITE (1ull << 13) |
| #define BO_USE_CAMERA_READ (1ull << 14) |
| #define BO_USE_RENDERSCRIPT (1ull << 16) |
| #define BO_USE_TEXTURE (1ull << 17) |
| |
| /* Read-Write permissions for drv_bo_map() flags */ |
| #define BO_TRANSFER_NONE 0 |
| #define BO_TRANSFER_READ (1 << 0) |
| #define BO_TRANSFER_WRITE (1 << 1) |
| #define BO_TRANSFER_READ_WRITE (BO_TRANSFER_READ | BO_TRANSFER_WRITE) |
| |
| /* This is our extension to <drm_fourcc.h>. We need to make sure we don't step |
| * on the namespace of already defined formats, which can be done by using invalid |
| * fourcc codes. |
| */ |
| |
| #define DRM_FORMAT_NONE fourcc_code('0', '0', '0', '0') |
| #define DRM_FORMAT_YVU420_ANDROID fourcc_code('9', '9', '9', '7') |
| #define DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED fourcc_code('9', '9', '9', '8') |
| #define DRM_FORMAT_FLEX_YCbCr_420_888 fourcc_code('9', '9', '9', '9') |
| |
| // clang-format on |
| struct driver; |
| struct bo; |
| struct combination; |
| |
| union bo_handle { |
| void *ptr; |
| int32_t s32; |
| uint32_t u32; |
| int64_t s64; |
| uint64_t u64; |
| }; |
| |
| struct drv_import_fd_data { |
| int fds[DRV_MAX_PLANES]; |
| uint32_t strides[DRV_MAX_PLANES]; |
| uint32_t offsets[DRV_MAX_PLANES]; |
| uint64_t format_modifiers[DRV_MAX_PLANES]; |
| uint32_t width; |
| uint32_t height; |
| uint32_t format; |
| uint64_t use_flags; |
| }; |
| |
| struct map_info { |
| void *addr; |
| size_t length; |
| uint32_t handle; |
| int32_t refcount; |
| void *priv; |
| }; |
| |
| struct driver *drv_create(int fd); |
| |
| void drv_destroy(struct driver *drv); |
| |
| int drv_get_fd(struct driver *drv); |
| |
| const char *drv_get_name(struct driver *drv); |
| |
| struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags); |
| |
| struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format, |
| uint64_t use_flags); |
| |
| struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format, |
| uint64_t use_flags); |
| |
| struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height, |
| uint32_t format, const uint64_t *modifiers, uint32_t count); |
| |
| void drv_bo_destroy(struct bo *bo); |
| |
| struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data); |
| |
| void *drv_bo_map(struct bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height, |
| uint32_t flags, struct map_info **map_data, size_t plane); |
| |
| int drv_bo_unmap(struct bo *bo, struct map_info *data); |
| |
| int drv_bo_flush(struct bo *bo, struct map_info *data); |
| |
| uint32_t drv_bo_get_width(struct bo *bo); |
| |
| uint32_t drv_bo_get_height(struct bo *bo); |
| |
| uint32_t drv_bo_get_stride_or_tiling(struct bo *bo); |
| |
| size_t drv_bo_get_num_planes(struct bo *bo); |
| |
| union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane); |
| |
| int drv_bo_get_plane_fd(struct bo *bo, size_t plane); |
| |
| uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane); |
| |
| uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane); |
| |
| uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane); |
| |
| uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane); |
| |
| uint32_t drv_bo_get_format(struct bo *bo); |
| |
| uint32_t drv_bo_get_stride_in_pixels(struct bo *bo); |
| |
| uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags); |
| |
| size_t drv_num_planes_from_format(uint32_t format); |
| |
| uint32_t drv_num_buffers_per_bo(struct bo *bo); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |