96 lines
3 KiB
C++
96 lines
3 KiB
C++
/*
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**
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** Copyright 2009, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef ANDROID_BUFFER_ALLOCATOR_H
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#define ANDROID_BUFFER_ALLOCATOR_H
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#include <stdint.h>
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#include <cutils/native_handle.h>
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <utils/threads.h>
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#include <utils/Singleton.h>
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#include <ui/Gralloc1.h>
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#include <ui/PixelFormat.h>
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namespace android {
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class Gralloc1Loader;
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class String8;
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class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator>
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{
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public:
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enum {
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USAGE_SW_READ_NEVER = GRALLOC1_CONSUMER_USAGE_CPU_READ_NEVER,
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USAGE_SW_READ_RARELY = GRALLOC1_CONSUMER_USAGE_CPU_READ,
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USAGE_SW_READ_OFTEN = GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN,
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USAGE_SW_READ_MASK = GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN,
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USAGE_SW_WRITE_NEVER = GRALLOC1_PRODUCER_USAGE_CPU_WRITE_NEVER,
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USAGE_SW_WRITE_RARELY = GRALLOC1_PRODUCER_USAGE_CPU_WRITE,
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USAGE_SW_WRITE_OFTEN = GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN,
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USAGE_SW_WRITE_MASK = GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN,
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USAGE_SOFTWARE_MASK = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
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USAGE_HW_TEXTURE = GRALLOC1_CONSUMER_USAGE_GPU_TEXTURE,
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USAGE_HW_RENDER = GRALLOC1_PRODUCER_USAGE_GPU_RENDER_TARGET,
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USAGE_HW_2D = 0x00000400, // Deprecated
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USAGE_HW_MASK = 0x00071F00, // Deprecated
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};
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static inline GraphicBufferAllocator& get() { return getInstance(); }
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status_t allocate(uint32_t w, uint32_t h, PixelFormat format,
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uint32_t usage, buffer_handle_t* handle, uint32_t* stride,
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uint64_t graphicBufferId, std::string requestorName);
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status_t free(buffer_handle_t handle);
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void dump(String8& res) const;
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static void dumpToSystemLog();
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private:
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struct alloc_rec_t {
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uint32_t width;
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uint32_t height;
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uint32_t stride;
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PixelFormat format;
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uint32_t usage;
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size_t size;
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std::string requestorName;
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};
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static Mutex sLock;
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static KeyedVector<buffer_handle_t, alloc_rec_t> sAllocList;
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friend class Singleton<GraphicBufferAllocator>;
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GraphicBufferAllocator();
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~GraphicBufferAllocator();
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std::unique_ptr<Gralloc1::Loader> mLoader;
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std::unique_ptr<Gralloc1::Device> mDevice;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_BUFFER_ALLOCATOR_H
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