Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | ** |
| 3 | ** Copyright 2009, The Android Open Source Project |
| 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #ifndef ANDROID_BUFFER_ALLOCATOR_H |
| 19 | #define ANDROID_BUFFER_ALLOCATOR_H |
| 20 | |
| 21 | #include <stdint.h> |
| 22 | |
| 23 | #include <cutils/native_handle.h> |
| 24 | |
| 25 | #include <utils/Errors.h> |
| 26 | #include <utils/KeyedVector.h> |
| 27 | #include <utils/threads.h> |
| 28 | #include <utils/Singleton.h> |
| 29 | |
| 30 | #include <ui/PixelFormat.h> |
| 31 | |
| 32 | #include <hardware/gralloc.h> |
| 33 | |
| 34 | |
| 35 | namespace android { |
| 36 | // --------------------------------------------------------------------------- |
| 37 | |
| 38 | class String8; |
| 39 | |
Mathias Agopian | 6950e42 | 2009-10-05 17:07:12 -0700 | [diff] [blame] | 40 | class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator> |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 41 | { |
| 42 | public: |
| 43 | enum { |
| 44 | USAGE_SW_READ_NEVER = GRALLOC_USAGE_SW_READ_NEVER, |
| 45 | USAGE_SW_READ_RARELY = GRALLOC_USAGE_SW_READ_RARELY, |
| 46 | USAGE_SW_READ_OFTEN = GRALLOC_USAGE_SW_READ_OFTEN, |
| 47 | USAGE_SW_READ_MASK = GRALLOC_USAGE_SW_READ_MASK, |
| 48 | |
| 49 | USAGE_SW_WRITE_NEVER = GRALLOC_USAGE_SW_WRITE_NEVER, |
| 50 | USAGE_SW_WRITE_RARELY = GRALLOC_USAGE_SW_WRITE_RARELY, |
| 51 | USAGE_SW_WRITE_OFTEN = GRALLOC_USAGE_SW_WRITE_OFTEN, |
| 52 | USAGE_SW_WRITE_MASK = GRALLOC_USAGE_SW_WRITE_MASK, |
| 53 | |
| 54 | USAGE_SOFTWARE_MASK = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK, |
| 55 | |
| 56 | USAGE_HW_TEXTURE = GRALLOC_USAGE_HW_TEXTURE, |
| 57 | USAGE_HW_RENDER = GRALLOC_USAGE_HW_RENDER, |
| 58 | USAGE_HW_2D = GRALLOC_USAGE_HW_2D, |
| 59 | USAGE_HW_MASK = GRALLOC_USAGE_HW_MASK |
| 60 | }; |
| 61 | |
Mathias Agopian | 6950e42 | 2009-10-05 17:07:12 -0700 | [diff] [blame] | 62 | static inline GraphicBufferAllocator& get() { return getInstance(); } |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 63 | |
| 64 | |
| 65 | status_t alloc(uint32_t w, uint32_t h, PixelFormat format, int usage, |
| 66 | buffer_handle_t* handle, int32_t* stride); |
| 67 | |
| 68 | status_t free(buffer_handle_t handle); |
| 69 | |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 70 | void dump(String8& res) const; |
Mathias Agopian | e869aee | 2010-12-03 17:33:09 -0800 | [diff] [blame] | 71 | static void dumpToSystemLog(); |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 72 | |
| 73 | private: |
| 74 | struct alloc_rec_t { |
| 75 | uint32_t w; |
| 76 | uint32_t h; |
Mathias Agopian | 67bbac8 | 2010-04-15 14:57:39 -0700 | [diff] [blame] | 77 | uint32_t s; |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 78 | PixelFormat format; |
| 79 | uint32_t usage; |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 80 | size_t size; |
| 81 | }; |
| 82 | |
| 83 | static Mutex sLock; |
| 84 | static KeyedVector<buffer_handle_t, alloc_rec_t> sAllocList; |
| 85 | |
Mathias Agopian | 6950e42 | 2009-10-05 17:07:12 -0700 | [diff] [blame] | 86 | friend class Singleton<GraphicBufferAllocator>; |
| 87 | GraphicBufferAllocator(); |
| 88 | ~GraphicBufferAllocator(); |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 89 | |
Mathias Agopian | 1473f46 | 2009-04-10 14:24:30 -0700 | [diff] [blame] | 90 | alloc_device_t *mAllocDev; |
| 91 | }; |
| 92 | |
| 93 | // --------------------------------------------------------------------------- |
| 94 | }; // namespace android |
| 95 | |
| 96 | #endif // ANDROID_BUFFER_ALLOCATOR_H |