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/*
* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __GR_BUF_DESCRIPTOR_H__
#define __GR_BUF_DESCRIPTOR_H__
#include <android/hardware/graphics/mapper/2.1/IMapper.h>
#include <atomic>
namespace gralloc {
using android::hardware::graphics::mapper::V2_0::Error;
using android::hardware::graphics::mapper::V2_1::IMapper;
using android::hardware::hidl_vec;
const uint32_t kBufferDescriptorSize = 7;
const uint32_t kMagicVersion = 0x76312E30; // v1.0
class BufferDescriptor {
public:
BufferDescriptor() {}
explicit BufferDescriptor(uint64_t id) : id_(id) {}
static hidl_vec<uint32_t> Encode(const IMapper::BufferDescriptorInfo &bd_info) {
hidl_vec<uint32_t> out;
out.resize(kBufferDescriptorSize);
out[0] = kMagicVersion;
out[1] = bd_info.width;
out[2] = bd_info.height;
out[3] = bd_info.layerCount;
out[4] = static_cast<uint32_t>(bd_info.format);
out[5] = static_cast<uint32_t>(bd_info.usage);
out[6] = static_cast<uint32_t>(bd_info.usage >> 32);
return out;
}
Error Decode(const hidl_vec<uint32_t> &in) {
if (in.size() != kBufferDescriptorSize || in[0] != kMagicVersion) {
return Error::BAD_DESCRIPTOR;
}
width_ = static_cast<int32_t>(in[1]);
height_ = static_cast<int32_t>(in[2]);
layer_count_ = in[3];
format_ = static_cast<int32_t>(in[4]);
usage_ = static_cast<uint64_t>(in[6]) << 32 | in[5];
return Error::NONE;
}
void SetUsage(uint64_t usage) { usage_ |= usage; }
void SetDimensions(int w, int h) {
width_ = w;
height_ = h;
}
void SetColorFormat(int format) { format_ = format; }
void SetLayerCount(uint32_t layer_count) { layer_count_ = layer_count; }
uint64_t GetUsage() const { return usage_; }
int GetWidth() const { return width_; }
int GetHeight() const { return height_; }
int GetFormat() const { return format_; }
uint32_t GetLayerCount() const { return layer_count_; }
uint64_t GetId() const { return id_; }
private:
int width_ = -1;
int height_ = -1;
int format_ = -1;
uint32_t layer_count_ = 1;
uint64_t usage_ = 0;
const uint64_t id_ = 0;
};
}; // namespace gralloc
#endif // __GR_BUF_DESCRIPTOR_H__
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