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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_UI_BUFFER_MAPPER_H
#define ANDROID_UI_BUFFER_MAPPER_H
#include <stdint.h>
#include <sys/types.h>
#include <memory>
#include <ui/PixelFormat.h>
#include <utils/Singleton.h>
// Needed by code that still uses the GRALLOC_USAGE_* constants.
// when/if we get rid of gralloc, we should provide aliases or fix call sites.
#include <hardware/gralloc.h>
namespace android {
// ---------------------------------------------------------------------------
class GrallocMapper;
class Rect;
class GraphicBufferMapper : public Singleton<GraphicBufferMapper>
{
public:
enum Version {
GRALLOC_2,
GRALLOC_3,
};
static void preloadHal();
static inline GraphicBufferMapper& get() { return getInstance(); }
// The imported outHandle must be freed with freeBuffer when no longer
// needed. rawHandle is owned by the caller.
status_t importBuffer(buffer_handle_t rawHandle,
uint32_t width, uint32_t height, uint32_t layerCount,
PixelFormat format, uint64_t usage, uint32_t stride,
buffer_handle_t* outHandle);
status_t freeBuffer(buffer_handle_t handle);
void getTransportSize(buffer_handle_t handle,
uint32_t* outTransportNumFds, uint32_t* outTransportNumInts);
status_t lock(buffer_handle_t handle, uint32_t usage, const Rect& bounds, void** vaddr,
int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
status_t lock(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, void** vaddr);
status_t lockYCbCr(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr);
status_t unlock(buffer_handle_t handle);
status_t lockAsync(buffer_handle_t handle, uint32_t usage, const Rect& bounds, void** vaddr,
int fenceFd, int32_t* outBytesPerPixel = nullptr,
int32_t* outBytesPerStride = nullptr);
status_t lockAsync(buffer_handle_t handle, uint64_t producerUsage, uint64_t consumerUsage,
const Rect& bounds, void** vaddr, int fenceFd,
int32_t* outBytesPerPixel = nullptr, int32_t* outBytesPerStride = nullptr);
status_t lockAsyncYCbCr(buffer_handle_t handle,
uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr,
int fenceFd);
status_t unlockAsync(buffer_handle_t handle, int *fenceFd);
status_t isSupported(uint32_t width, uint32_t height, android::PixelFormat format,
uint32_t layerCount, uint64_t usage, bool* outSupported);
const GrallocMapper& getGrallocMapper() const {
return reinterpret_cast<const GrallocMapper&>(*mMapper);
}
Version getMapperVersion() const { return mMapperVersion; }
private:
friend class Singleton<GraphicBufferMapper>;
GraphicBufferMapper();
std::unique_ptr<const GrallocMapper> mMapper;
Version mMapperVersion;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_UI_BUFFER_MAPPER_H
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