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