89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
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* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef CROS_GRALLOC_DRIVER_H
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#define CROS_GRALLOC_DRIVER_H
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#include "cros_gralloc_buffer.h"
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#include <functional>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <unordered_map>
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#if ANDROID_API_LEVEL >= 31 && defined(HAS_DMABUF_SYSTEM_HEAP)
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#include <BufferAllocator/BufferAllocator.h>
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#endif
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class cros_gralloc_driver
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{
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public:
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static cros_gralloc_driver *get_instance();
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bool is_supported(const struct cros_gralloc_buffer_descriptor *descriptor);
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int32_t allocate(const struct cros_gralloc_buffer_descriptor *descriptor,
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native_handle_t **out_handle);
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int32_t retain(buffer_handle_t handle);
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int32_t release(buffer_handle_t handle);
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int32_t lock(buffer_handle_t handle, int32_t acquire_fence, bool close_acquire_fence,
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const struct rectangle *rect, uint32_t map_flags,
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uint8_t *addr[DRV_MAX_PLANES]);
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int32_t unlock(buffer_handle_t handle, int32_t *release_fence);
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int32_t invalidate(buffer_handle_t handle);
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int32_t flush(buffer_handle_t handle, int32_t *release_fence);
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int32_t get_backing_store(buffer_handle_t handle, uint64_t *out_store);
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int32_t resource_info(buffer_handle_t handle, uint32_t strides[DRV_MAX_PLANES],
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uint32_t offsets[DRV_MAX_PLANES], uint64_t *format_modifier);
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int32_t get_reserved_region(buffer_handle_t handle, void **reserved_region_addr,
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uint64_t *reserved_region_size);
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uint32_t get_resolved_drm_format(uint32_t drm_format, uint64_t use_flags);
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void with_buffer(cros_gralloc_handle_t hnd,
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const std::function<void(cros_gralloc_buffer *)> &function);
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void with_each_buffer(const std::function<void(cros_gralloc_buffer *)> &function);
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private:
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cros_gralloc_driver();
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~cros_gralloc_driver();
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bool is_initialized();
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cros_gralloc_buffer *get_buffer(cros_gralloc_handle_t hnd);
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bool
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get_resolved_format_and_use_flags(const struct cros_gralloc_buffer_descriptor *descriptor,
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uint32_t *out_format, uint64_t *out_use_flags);
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int create_reserved_region(const std::string &buffer_name, uint64_t reserved_region_size);
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#if ANDROID_API_LEVEL >= 31 && defined(HAS_DMABUF_SYSTEM_HEAP)
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/* For allocating cros_gralloc_buffer reserved regions for metadata. */
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BufferAllocator allocator_;
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#endif
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std::unique_ptr<struct driver, void (*)(struct driver *)> drv_;
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struct cros_gralloc_imported_handle_info {
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/*
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* The underlying buffer for referred to by this handle (as multiple handles can
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* refer to the same buffer).
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*/
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cros_gralloc_buffer *buffer = nullptr;
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/* The handle's refcount as a handle can be imported multiple times.*/
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int32_t refcount = 1;
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};
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std::mutex mutex_;
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std::unordered_map<uint32_t, std::unique_ptr<cros_gralloc_buffer>> buffers_;
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std::unordered_map<cros_gralloc_handle_t, cros_gralloc_imported_handle_info> handles_;
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};
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#endif
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