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[android-x86/external-minigbm.git] / cros_gralloc / cros_gralloc_driver.h
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 <functional>
13 #include <mutex>
14 #include <unordered_map>
15
16 class cros_gralloc_driver
17 {
18       public:
19         cros_gralloc_driver();
20         ~cros_gralloc_driver();
21
22         int32_t init();
23         bool is_supported(const struct cros_gralloc_buffer_descriptor *descriptor);
24         int32_t allocate(const struct cros_gralloc_buffer_descriptor *descriptor,
25                          buffer_handle_t *out_handle);
26
27         int32_t retain(buffer_handle_t handle);
28         int32_t release(buffer_handle_t handle);
29
30         int32_t lock(buffer_handle_t handle, int32_t acquire_fence, bool close_acquire_fence,
31                      const struct rectangle *rect, uint32_t map_flags,
32                      uint8_t *addr[DRV_MAX_PLANES]);
33         int32_t unlock(buffer_handle_t handle, int32_t *release_fence);
34
35         int32_t invalidate(buffer_handle_t handle);
36         int32_t flush(buffer_handle_t handle, int32_t *release_fence);
37
38         int32_t get_backing_store(buffer_handle_t handle, uint64_t *out_store);
39         int32_t resource_info(buffer_handle_t handle, uint32_t strides[DRV_MAX_PLANES],
40                               uint32_t offsets[DRV_MAX_PLANES]);
41
42         int32_t get_reserved_region(buffer_handle_t handle, void **reserved_region_addr,
43                                     uint64_t *reserved_region_size);
44
45         uint32_t get_resolved_drm_format(uint32_t drm_format, uint64_t usage);
46
47         void for_each_handle(const std::function<void(cros_gralloc_handle_t)> &function);
48
49       private:
50         cros_gralloc_driver(cros_gralloc_driver const &);
51         cros_gralloc_driver operator=(cros_gralloc_driver const &);
52         cros_gralloc_buffer *get_buffer(cros_gralloc_handle_t hnd);
53
54         struct driver *drv_;
55         std::mutex mutex_;
56         std::unordered_map<uint32_t, cros_gralloc_buffer *> buffers_;
57         std::unordered_map<cros_gralloc_handle_t, std::pair<cros_gralloc_buffer *, int32_t>>
58             handles_;
59 };
60
61 #endif