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_BUFFER_H 8 #define CROS_GRALLOC_BUFFER_H 9 10 #include "../drv.h" 11 #include "cros_gralloc_helpers.h" 12 13 class cros_gralloc_buffer 14 { 15 public: 16 cros_gralloc_buffer(uint32_t id, struct bo *acquire_bo, 17 struct cros_gralloc_handle *acquire_handle, int32_t reserved_region_fd, 18 uint64_t reserved_region_size); 19 ~cros_gralloc_buffer(); 20 21 uint32_t get_id() const; 22 23 /* The new reference count is returned by both these functions. */ 24 int32_t increase_refcount(); 25 int32_t decrease_refcount(); 26 27 int32_t lock(const struct rectangle *rect, uint32_t map_flags, 28 uint8_t *addr[DRV_MAX_PLANES]); 29 int32_t unlock(); 30 int32_t resource_info(uint32_t strides[DRV_MAX_PLANES], uint32_t offsets[DRV_MAX_PLANES], 31 uint64_t *format_modifier); 32 33 int32_t invalidate(); 34 int32_t flush(); 35 36 int32_t get_reserved_region(void **reserved_region_addr, uint64_t *reserved_region_size); 37 38 private: 39 cros_gralloc_buffer(cros_gralloc_buffer const &); 40 cros_gralloc_buffer operator=(cros_gralloc_buffer const &); 41 42 uint32_t id_; 43 struct bo *bo_; 44 45 /* Note: this will be nullptr for imported/retained buffers. */ 46 struct cros_gralloc_handle *hnd_; 47 48 int32_t refcount_; 49 int32_t lockcount_; 50 uint32_t num_planes_; 51 52 struct mapping *lock_data_[DRV_MAX_PLANES]; 53 54 /* Optional additional shared memory region attached to some gralloc buffers. */ 55 int32_t reserved_region_fd_; 56 uint64_t reserved_region_size_; 57 void *reserved_region_addr_; 58 }; 59 60 #endif 61