1 /* 2 * Copyright 2017 The Chromium OS Authors. All rights reserved. 3 * Use of this source code is governed by a BSD-style license that can be 4 * found in the LICENSE file. 5 */ 6 7 #ifndef CROS_GRALLOC_DRIVER_H 8 #define CROS_GRALLOC_DRIVER_H 9 10 #include "cros_gralloc_buffer.h" 11 12 #include <mutex> 13 #include <unordered_map> 14 15 class cros_gralloc_driver 16 { 17 public: 18 cros_gralloc_driver(); 19 ~cros_gralloc_driver(); 20 21 int32_t init(); 22 bool is_supported(const struct cros_gralloc_buffer_descriptor *descriptor); 23 int32_t allocate(const struct cros_gralloc_buffer_descriptor *descriptor, 24 buffer_handle_t *out_handle); 25 26 int32_t retain(buffer_handle_t handle); 27 int32_t release(buffer_handle_t handle); 28 29 int32_t lock(buffer_handle_t handle, int32_t acquire_fence, const struct rectangle *rect, 30 uint32_t map_flags, uint8_t *addr[DRV_MAX_PLANES]); 31 int32_t unlock(buffer_handle_t handle, int32_t *release_fence); 32 33 int32_t get_backing_store(buffer_handle_t handle, uint64_t *out_store); 34 35 private: 36 cros_gralloc_driver(cros_gralloc_driver const &); 37 cros_gralloc_driver operator=(cros_gralloc_driver const &); 38 cros_gralloc_buffer *get_buffer(cros_gralloc_handle_t hnd); 39 40 struct driver *drv_; 41 std::mutex mutex_; 42 std::unordered_map<uint32_t, cros_gralloc_buffer *> buffers_; 43 std::unordered_map<cros_gralloc_handle_t, std::pair<cros_gralloc_buffer *, int32_t>> 44 handles_; 45 }; 46 47 #endif 48
