| /* |
| * Copyright 2017 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 CROS_GRALLOC_DRIVER_H |
| #define CROS_GRALLOC_DRIVER_H |
| |
| #include "cros_gralloc_buffer.h" |
| |
| #include <functional> |
| #include <mutex> |
| #include <unordered_map> |
| |
| class cros_gralloc_driver |
| { |
| public: |
| static cros_gralloc_driver *get_instance(); |
| bool is_supported(const struct cros_gralloc_buffer_descriptor *descriptor); |
| int32_t allocate(const struct cros_gralloc_buffer_descriptor *descriptor, |
| buffer_handle_t *out_handle); |
| |
| int32_t retain(buffer_handle_t handle); |
| int32_t release(buffer_handle_t handle); |
| |
| int32_t lock(buffer_handle_t handle, int32_t acquire_fence, bool close_acquire_fence, |
| const struct rectangle *rect, uint32_t map_flags, |
| uint8_t *addr[DRV_MAX_PLANES]); |
| int32_t unlock(buffer_handle_t handle, int32_t *release_fence); |
| |
| int32_t invalidate(buffer_handle_t handle); |
| int32_t flush(buffer_handle_t handle, int32_t *release_fence); |
| |
| int32_t get_backing_store(buffer_handle_t handle, uint64_t *out_store); |
| int32_t resource_info(buffer_handle_t handle, uint32_t strides[DRV_MAX_PLANES], |
| uint32_t offsets[DRV_MAX_PLANES], uint64_t *format_modifier); |
| |
| int32_t get_reserved_region(buffer_handle_t handle, void **reserved_region_addr, |
| uint64_t *reserved_region_size); |
| |
| uint32_t get_resolved_drm_format(uint32_t drm_format, uint64_t use_flags); |
| |
| void for_each_handle(const std::function<void(cros_gralloc_handle_t)> &function); |
| |
| private: |
| cros_gralloc_driver(); |
| ~cros_gralloc_driver(); |
| bool is_initialized(); |
| cros_gralloc_buffer *get_buffer(cros_gralloc_handle_t hnd); |
| void emplace_buffer(struct bo *bo, struct cros_gralloc_handle *hnd); |
| bool |
| get_resolved_format_and_use_flags(const struct cros_gralloc_buffer_descriptor *descriptor, |
| uint32_t *out_format, uint64_t *out_use_flags); |
| |
| struct driver *drv_ = nullptr; |
| std::mutex mutex_; |
| std::unordered_map<uint32_t, cros_gralloc_buffer *> buffers_; |
| std::unordered_map<cros_gralloc_handle_t, std::pair<cros_gralloc_buffer *, int32_t>> |
| handles_; |
| }; |
| |
| #endif |