gralloc/QtiMapper4.h - LeafOS-Project/android_hardware_qcom_display - Gitiles

 /*
  * Copyright (c) 2018-2020 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.
  *
  * Changes from Qualcomm Innovation Center are provided under the following license:
  * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * SPDX-License-Identifier: BSD-3-Clause-Clear
  */

 #ifndef __QTIMAPPER4_H__
 #define __QTIMAPPER4_H__

 #include <QtiGralloc.h>
 #include <gralloctypes/Gralloc4.h>
 #include <hidl/MQDescriptor.h>
 #include <hidl/Status.h>
 #include <vendor/qti/hardware/display/mapper/4.0/IQtiMapper.h>

 #include <algorithm>
 #include <string>

 #include "QtiMapperExtensions.h"
 #include "gr_buf_mgr.h"
 namespace vendor {
 namespace qti {
 namespace hardware {
 namespace display {
 namespace mapper {
 namespace V4_0 {
 namespace implementation {

 using ::android::sp;
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_handle;
 using ::android::hardware::hidl_memory;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::hardware::graphics::common::V1_2::PixelFormat;
 using ::android::hardware::graphics::mapper::V4_0::Error;
 using ::android::hardware::graphics::mapper::V4_0::IMapper;
 using ::android::hidl::base::V1_0::DebugInfo;
 using ::android::hidl::base::V1_0::IBase;
 using gralloc::BufferManager;
 using ::vendor::qti::hardware::display::mapper::V4_0::IQtiMapper;
 using ::vendor::qti::hardware::display::mapperextensions::V1_1::IQtiMapperExtensions;
 using ::vendor::qti::hardware::display::mapperextensions::V1_1::implementation::QtiMapperExtensions;

 using android::hardware::graphics::mapper::V4_0::IMapper;
 using BufferDescriptorInfo_4_0 =
     android::hardware::graphics::mapper::V4_0::IMapper::BufferDescriptorInfo;
 using IMapperBufferDescriptor = android::hardware::graphics::mapper::V4_0::BufferDescriptor;
 using MetadataType = ::android::hardware::graphics::mapper::V4_0::IMapper::MetadataType;
 using MetadataTypeDescription =
     ::android::hardware::graphics::mapper::V4_0::IMapper::MetadataTypeDescription;
 using IMapper_4_0_Error = ::android::hardware::graphics::mapper::V4_0::Error;

 class QtiMapper : public IQtiMapper {
  public:
   QtiMapper();
   // Methods from ::android::hardware::graphics::mapper::V2_0::IMapper follow.
   Return<void> createDescriptor(const BufferDescriptorInfo_4_0 &descriptor_info,
                                 createDescriptor_cb hidl_cb) override;
   Return<void> importBuffer(const hidl_handle &raw_handle, importBuffer_cb hidl_cb) override;
   Return<Error> freeBuffer(void *buffer) override;
   Return<void> lock(void *buffer, uint64_t cpu_usage, const IMapper::Rect &access_region,
                     const hidl_handle &acquire_fence, lock_cb hidl_cb) override;
   Return<void> unlock(void *buffer, unlock_cb hidl_cb) override;

   // Methods from ::android::hardware::graphics::mapper::V2_1::IMapper follow.
   Return<Error> validateBufferSize(void *buffer, const BufferDescriptorInfo_4_0 &descriptorInfo,
                                    uint32_t stride) override;
   Return<void> getTransportSize(void *buffer, getTransportSize_cb hidl_cb) override;

   Return<void> isSupported(const BufferDescriptorInfo_4_0 &descriptor_info,
                            isSupported_cb hidl_cb) override;

   Return<void> getMapperExtensions(getMapperExtensions_cb hidl_cb);
   sp<mapperextensions::V1_1::IQtiMapperExtensions> extensions_ = nullptr;

   // Methods from ::android::hardware::graphics::mapper::V4:0::IMapper follow.
   Return<void> get(void *buffer, const MetadataType &metadataType, get_cb hidl_cb) override;
   Return<Error> set(void *buffer, const MetadataType &metadataType,
                     const hidl_vec<uint8_t> &metadata) override;
   Return<void> getFromBufferDescriptorInfo(const BufferDescriptorInfo &description,
                                            const MetadataType &metadataType,
                                            getFromBufferDescriptorInfo_cb hidl_cb) override;
   Return<void> flushLockedBuffer(void *buffer, flushLockedBuffer_cb hidl_cb);
   Return<Error> rereadLockedBuffer(void *buffer);
   Return<void> listSupportedMetadataTypes(listSupportedMetadataTypes_cb hidl_cb);
   Return<void> getReservedRegion(void *buffer, getReservedRegion_cb _hidl_cb);
   Return<void> dumpBuffer(void *buffer, dumpBuffer_cb _hidl_cb);
   Return<void> dumpBuffers(dumpBuffers_cb _hidl_cb);

   hidl_vec<uint8_t> Encode(const BufferDescriptorInfo_4_0 &bd_info) {
     hidl_vec<uint8_t> out;

     uint64_t name_size = bd_info.name.size();

     /* Name length is variable, need to store string prepended with size
      * The rest of the packet size is constant
      */
     out.resize(gralloc::kBufferDescriptorSizeV4 + sizeof(name_size) + name_size);

     int index = 0;
     uint32_t magic_version = gralloc::kMagicVersion;
     std::memcpy(&out[index], &magic_version, sizeof(magic_version));
     index += sizeof(magic_version);

     std::memcpy(&out[index], &name_size, sizeof(name_size));
     index += sizeof(name_size);

     std::memcpy(&out[index], bd_info.name.c_str(), bd_info.name.size());
     index += name_size;

     std::memcpy(&out[index], &bd_info.width, sizeof(bd_info.width));
     index += sizeof(bd_info.width);

     std::memcpy(&out[index], &bd_info.height, sizeof(bd_info.height));
     index += sizeof(bd_info.height);

     std::memcpy(&out[index], &bd_info.layerCount, sizeof(bd_info.layerCount));
     index += sizeof(bd_info.layerCount);

     std::memcpy(&out[index], &bd_info.format, sizeof(bd_info.format));
     index += sizeof(bd_info.format);

     std::memcpy(&out[index], &bd_info.usage, sizeof(bd_info.usage));
     index += sizeof(bd_info.usage);

     std::memcpy(&out[index], &bd_info.reservedSize, sizeof(bd_info.reservedSize));

     return out;
   }
   static gralloc::Error Decode(const hidl_vec<uint8_t> &in,
                                gralloc::BufferDescriptor *buf_descriptor) {
     // First check is to avoid dereferencing if the vector is too short
     if (in.size() < gralloc::kBufferDescriptorSizeV4) {
       return gralloc::Error::BAD_DESCRIPTOR;
     }

     int index = 0;
     uint32_t magic_version;
     std::memcpy(&magic_version, &in[index], sizeof(magic_version));
     index += sizeof(magic_version);

     uint64_t name_size;
     std::memcpy(&name_size, &in[index], sizeof(name_size));
     index += sizeof(name_size);

     // The second check validates that the size and magic version are correct
     if (in.size() != (gralloc::kBufferDescriptorSizeV4 + name_size + sizeof(name_size)) ||
         magic_version != gralloc::kMagicVersion) {
       return gralloc::Error::BAD_DESCRIPTOR;
     }

     std::string name;

     name.resize(name_size);
     std::memcpy(name.data(), &in[index], name.size());
     index += name_size;
     buf_descriptor->SetName(name);

     uint32_t width, height;
     std::memcpy(&width, &in[index], sizeof(width));

     index += sizeof(width);
     std::memcpy(&height, &in[index], sizeof(height));
     index += sizeof(height);
     buf_descriptor->SetDimensions(width, height);

     uint32_t layer_count;
     std::memcpy(&layer_count, &in[index], sizeof(layer_count));
     index += sizeof(layer_count);
     buf_descriptor->SetLayerCount(layer_count);

     uint32_t format;
     std::memcpy(&format, &in[index], sizeof(format));
     index += sizeof(format);
     buf_descriptor->SetColorFormat(format);

     uint64_t usage;
     std::memcpy(&usage, &in[index], sizeof(usage));
     index += sizeof(usage);
     buf_descriptor->SetUsage(usage);

     uint64_t reserved_size;
     std::memcpy(&reserved_size, &in[index], sizeof(reserved_size));
     index += sizeof(reserved_size);

     buf_descriptor->SetReservedSize(reserved_size);
     return gralloc::Error::NONE;
   }

  private:
   BufferManager *buf_mgr_ = nullptr;
   Error CreateDescriptor(const BufferDescriptorInfo_4_0 &descriptor_info,
                          IMapperBufferDescriptor *descriptor);
   bool ValidDescriptor(const IMapper::BufferDescriptorInfo &bd);
   bool GetFenceFd(const hidl_handle &fence_handle, int *outFenceFd);
   void WaitFenceFd(int fence_fd);
   Error LockBuffer(void *buffer, uint64_t usage, const hidl_handle &acquire_fence,
                    const IMapper::Rect &access_region);

   Error DumpBufferMetadata(const private_handle_t *buffer, BufferDump *outBufferDump);

   hidl_vec<MetadataTypeDescription> metadata_type_descriptions_ = {
       // MetadataType, description, gettable, settable
       {android::gralloc4::MetadataType_BufferId, "", true, false},
       {android::gralloc4::MetadataType_Name, "", true, false},
       {android::gralloc4::MetadataType_Width, "", true, false},
       {android::gralloc4::MetadataType_Height, "", true, false},
       {android::gralloc4::MetadataType_LayerCount, "", true, false},
       {android::gralloc4::MetadataType_PixelFormatRequested, "", true, false},
       {android::gralloc4::MetadataType_PixelFormatFourCC, "", true, false},
       {android::gralloc4::MetadataType_PixelFormatModifier, "", true, false},
       {android::gralloc4::MetadataType_Usage, "", true, false},
       {android::gralloc4::MetadataType_AllocationSize, "", true, false},
       {android::gralloc4::MetadataType_ProtectedContent, "", true, false},
       {android::gralloc4::MetadataType_ChromaSiting, "", true, false},
       {android::gralloc4::MetadataType_Compression, "", true, false},
       {android::gralloc4::MetadataType_Interlaced, "", true, false},
       {android::gralloc4::MetadataType_PlaneLayouts, "", true, false},
       {android::gralloc4::MetadataType_Dataspace, "", true, true},
       {android::gralloc4::MetadataType_BlendMode, "", true, true},
       {android::gralloc4::MetadataType_Smpte2086, "", true, true},
       {android::gralloc4::MetadataType_Cta861_3, "", true, true},
       {android::gralloc4::MetadataType_Smpte2094_40, "", true, true},
       {android::gralloc4::MetadataType_Crop, "", true, true},
       {qtigralloc::MetadataType_VTTimestamp, "VT Timestamp", true, true},
       {qtigralloc::MetadataType_ColorMetadata, "Color metadata", true, true},
       {qtigralloc::MetadataType_PPParamInterlaced, "Interlaced", true, true},
       {qtigralloc::MetadataType_VideoPerfMode, "Video perf mode", true, true},
       {qtigralloc::MetadataType_GraphicsMetadata, "Graphics metadata", true, true},
       {qtigralloc::MetadataType_UBWCCRStatsInfo, "UBWC stats", true, true},
       {qtigralloc::MetadataType_RefreshRate, "Refresh rate", true, true},
       {qtigralloc::MetadataType_MapSecureBuffer, "Secure buffer mappable", true, true},
       {qtigralloc::MetadataType_LinearFormat, "Linear format", true, true},
       {qtigralloc::MetadataType_SingleBufferMode, "Single buffer mode flag", true, true},
       {qtigralloc::MetadataType_CVPMetadata, "CVP metadata", true, true},
       {qtigralloc::MetadataType_VideoHistogramStats, "Video histogram stats", true, true},
 #ifdef QTI_VIDEO_TRANSCODE_STATS
       {qtigralloc::MetadataType_VideoTranscodeStats, "Video transcode stats", true, true},
 #endif
       {qtigralloc::MetadataType_FD, "fd from private_handle_t", true, false},
       {qtigralloc::MetadataType_PrivateFlags, "Flags in private_handle_t", true, false},
       {qtigralloc::MetadataType_AlignedWidthInPixels, "width in private_handle_t", true, false},
       {qtigralloc::MetadataType_AlignedHeightInPixels, "height in private_handle_t", true, false},
 #ifdef METADATA_V2
       {qtigralloc::MetadataType_StandardMetadataStatus, "Is standard metadata set", true, false},
       {qtigralloc::MetadataType_VendorMetadataStatus, "Is vendor metadata set", true, false},
 #endif
 #ifdef QTI_BUFFER_TYPE
       {qtigralloc::MetadataType_BufferType, "Buffer type from private_handle_t", true, false},
 #endif
 #ifdef QTI_VIDEO_TS_INFO
       {qtigralloc::MetadataType_VideoTimestampInfo, "Video timestamp info", true, true},
 #endif
 #ifdef QTI_BUFFER_PERMISSION
       {qtigralloc::MetadataType_BufferPermission, "BufferPermission", true, true},
 #endif
 #ifdef QTI_MEM_HANDLE
       {qtigralloc::MetadataType_MemHandle, "MemHandle", true, false},
 #endif
 #ifdef QTI_TIMED_RENDERING
       {qtigralloc::MetadataType_TimedRendering, "timed rendering", true, true},
 #endif
 #ifdef QTI_CUSTOM_CONTENT_METADATA
       {qtigralloc::MetadataType_CustomContentMetadata, "Custom content metadata", true, true},
 #endif
   };
 };

 }  // namespace implementation
 }  // namespace V4_0
 }  // namespace mapper
 }  // namespace display
 }  // namespace hardware
 }  // namespace qti
 }  // namespace vendor

 #endif  // __QTIMAPPER4_H__
	/*
	* Copyright (c) 2018-2020 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.
	*
	* Changes from Qualcomm Innovation Center are provided under the following license:
	* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
	* SPDX-License-Identifier: BSD-3-Clause-Clear
	*/

	#ifndef __QTIMAPPER4_H__
	#define __QTIMAPPER4_H__

	#include <QtiGralloc.h>
	#include <gralloctypes/Gralloc4.h>
	#include <hidl/MQDescriptor.h>
	#include <hidl/Status.h>
	#include <vendor/qti/hardware/display/mapper/4.0/IQtiMapper.h>

	#include <algorithm>
	#include <string>

	#include "QtiMapperExtensions.h"
	#include "gr_buf_mgr.h"
	namespace vendor {
	namespace qti {
	namespace hardware {
	namespace display {
	namespace mapper {
	namespace V4_0 {
	namespace implementation {

	using ::android::sp;
	using ::android::hardware::hidl_array;
	using ::android::hardware::hidl_handle;
	using ::android::hardware::hidl_memory;
	using ::android::hardware::hidl_string;
	using ::android::hardware::hidl_vec;
	using ::android::hardware::Return;
	using ::android::hardware::Void;
	using ::android::hardware::graphics::common::V1_2::PixelFormat;
	using ::android::hardware::graphics::mapper::V4_0::Error;
	using ::android::hardware::graphics::mapper::V4_0::IMapper;
	using ::android::hidl::base::V1_0::DebugInfo;
	using ::android::hidl::base::V1_0::IBase;
	using gralloc::BufferManager;
	using ::vendor::qti::hardware::display::mapper::V4_0::IQtiMapper;
	using ::vendor::qti::hardware::display::mapperextensions::V1_1::IQtiMapperExtensions;
	using ::vendor::qti::hardware::display::mapperextensions::V1_1::implementation::QtiMapperExtensions;

	using android::hardware::graphics::mapper::V4_0::IMapper;
	using BufferDescriptorInfo_4_0 =
	android::hardware::graphics::mapper::V4_0::IMapper::BufferDescriptorInfo;
	using IMapperBufferDescriptor = android::hardware::graphics::mapper::V4_0::BufferDescriptor;
	using MetadataType = ::android::hardware::graphics::mapper::V4_0::IMapper::MetadataType;
	using MetadataTypeDescription =
	::android::hardware::graphics::mapper::V4_0::IMapper::MetadataTypeDescription;
	using IMapper_4_0_Error = ::android::hardware::graphics::mapper::V4_0::Error;

	class QtiMapper : public IQtiMapper {
	public:
	QtiMapper();
	// Methods from ::android::hardware::graphics::mapper::V2_0::IMapper follow.
	Return<void> createDescriptor(const BufferDescriptorInfo_4_0 &descriptor_info,
	createDescriptor_cb hidl_cb) override;
	Return<void> importBuffer(const hidl_handle &raw_handle, importBuffer_cb hidl_cb) override;
	Return<Error> freeBuffer(void *buffer) override;
	Return<void> lock(void *buffer, uint64_t cpu_usage, const IMapper::Rect &access_region,
	const hidl_handle &acquire_fence, lock_cb hidl_cb) override;
	Return<void> unlock(void *buffer, unlock_cb hidl_cb) override;

	// Methods from ::android::hardware::graphics::mapper::V2_1::IMapper follow.
	Return<Error> validateBufferSize(void *buffer, const BufferDescriptorInfo_4_0 &descriptorInfo,
	uint32_t stride) override;
	Return<void> getTransportSize(void *buffer, getTransportSize_cb hidl_cb) override;

	Return<void> isSupported(const BufferDescriptorInfo_4_0 &descriptor_info,
	isSupported_cb hidl_cb) override;

	Return<void> getMapperExtensions(getMapperExtensions_cb hidl_cb);
	sp<mapperextensions::V1_1::IQtiMapperExtensions> extensions_ = nullptr;

	// Methods from ::android::hardware::graphics::mapper::V4:0::IMapper follow.
	Return<void> get(void *buffer, const MetadataType &metadataType, get_cb hidl_cb) override;
	Return<Error> set(void *buffer, const MetadataType &metadataType,
	const hidl_vec<uint8_t> &metadata) override;
	Return<void> getFromBufferDescriptorInfo(const BufferDescriptorInfo &description,
	const MetadataType &metadataType,
	getFromBufferDescriptorInfo_cb hidl_cb) override;
	Return<void> flushLockedBuffer(void *buffer, flushLockedBuffer_cb hidl_cb);
	Return<Error> rereadLockedBuffer(void *buffer);
	Return<void> listSupportedMetadataTypes(listSupportedMetadataTypes_cb hidl_cb);
	Return<void> getReservedRegion(void *buffer, getReservedRegion_cb _hidl_cb);
	Return<void> dumpBuffer(void *buffer, dumpBuffer_cb _hidl_cb);
	Return<void> dumpBuffers(dumpBuffers_cb _hidl_cb);

	hidl_vec<uint8_t> Encode(const BufferDescriptorInfo_4_0 &bd_info) {
	hidl_vec<uint8_t> out;

	uint64_t name_size = bd_info.name.size();

	/* Name length is variable, need to store string prepended with size
	* The rest of the packet size is constant
	*/
	out.resize(gralloc::kBufferDescriptorSizeV4 + sizeof(name_size) + name_size);

	int index = 0;
	uint32_t magic_version = gralloc::kMagicVersion;
	std::memcpy(&out[index], &magic_version, sizeof(magic_version));
	index += sizeof(magic_version);

	std::memcpy(&out[index], &name_size, sizeof(name_size));
	index += sizeof(name_size);

	std::memcpy(&out[index], bd_info.name.c_str(), bd_info.name.size());
	index += name_size;

	std::memcpy(&out[index], &bd_info.width, sizeof(bd_info.width));
	index += sizeof(bd_info.width);

	std::memcpy(&out[index], &bd_info.height, sizeof(bd_info.height));
	index += sizeof(bd_info.height);

	std::memcpy(&out[index], &bd_info.layerCount, sizeof(bd_info.layerCount));
	index += sizeof(bd_info.layerCount);

	std::memcpy(&out[index], &bd_info.format, sizeof(bd_info.format));
	index += sizeof(bd_info.format);

	std::memcpy(&out[index], &bd_info.usage, sizeof(bd_info.usage));
	index += sizeof(bd_info.usage);

	std::memcpy(&out[index], &bd_info.reservedSize, sizeof(bd_info.reservedSize));

	return out;
	}
	static gralloc::Error Decode(const hidl_vec<uint8_t> &in,
	gralloc::BufferDescriptor *buf_descriptor) {
	// First check is to avoid dereferencing if the vector is too short
	if (in.size() < gralloc::kBufferDescriptorSizeV4) {
	return gralloc::Error::BAD_DESCRIPTOR;
	}

	int index = 0;
	uint32_t magic_version;
	std::memcpy(&magic_version, &in[index], sizeof(magic_version));
	index += sizeof(magic_version);

	uint64_t name_size;
	std::memcpy(&name_size, &in[index], sizeof(name_size));
	index += sizeof(name_size);

	// The second check validates that the size and magic version are correct
	if (in.size() != (gralloc::kBufferDescriptorSizeV4 + name_size + sizeof(name_size)) \|\|
	magic_version != gralloc::kMagicVersion) {
	return gralloc::Error::BAD_DESCRIPTOR;
	}

	std::string name;

	name.resize(name_size);
	std::memcpy(name.data(), &in[index], name.size());
	index += name_size;
	buf_descriptor->SetName(name);

	uint32_t width, height;
	std::memcpy(&width, &in[index], sizeof(width));

	index += sizeof(width);
	std::memcpy(&height, &in[index], sizeof(height));
	index += sizeof(height);
	buf_descriptor->SetDimensions(width, height);

	uint32_t layer_count;
	std::memcpy(&layer_count, &in[index], sizeof(layer_count));
	index += sizeof(layer_count);
	buf_descriptor->SetLayerCount(layer_count);

	uint32_t format;
	std::memcpy(&format, &in[index], sizeof(format));
	index += sizeof(format);
	buf_descriptor->SetColorFormat(format);

	uint64_t usage;
	std::memcpy(&usage, &in[index], sizeof(usage));
	index += sizeof(usage);
	buf_descriptor->SetUsage(usage);

	uint64_t reserved_size;
	std::memcpy(&reserved_size, &in[index], sizeof(reserved_size));
	index += sizeof(reserved_size);

	buf_descriptor->SetReservedSize(reserved_size);
	return gralloc::Error::NONE;
	}

	private:
	BufferManager *buf_mgr_ = nullptr;
	Error CreateDescriptor(const BufferDescriptorInfo_4_0 &descriptor_info,
	IMapperBufferDescriptor *descriptor);
	bool ValidDescriptor(const IMapper::BufferDescriptorInfo &bd);
	bool GetFenceFd(const hidl_handle &fence_handle, int *outFenceFd);
	void WaitFenceFd(int fence_fd);
	Error LockBuffer(void *buffer, uint64_t usage, const hidl_handle &acquire_fence,
	const IMapper::Rect &access_region);

	Error DumpBufferMetadata(const private_handle_t buffer, BufferDump outBufferDump);

	hidl_vec<MetadataTypeDescription> metadata_type_descriptions_ = {
	// MetadataType, description, gettable, settable
	{android::gralloc4::MetadataType_BufferId, "", true, false},
	{android::gralloc4::MetadataType_Name, "", true, false},
	{android::gralloc4::MetadataType_Width, "", true, false},
	{android::gralloc4::MetadataType_Height, "", true, false},
	{android::gralloc4::MetadataType_LayerCount, "", true, false},
	{android::gralloc4::MetadataType_PixelFormatRequested, "", true, false},
	{android::gralloc4::MetadataType_PixelFormatFourCC, "", true, false},
	{android::gralloc4::MetadataType_PixelFormatModifier, "", true, false},
	{android::gralloc4::MetadataType_Usage, "", true, false},
	{android::gralloc4::MetadataType_AllocationSize, "", true, false},
	{android::gralloc4::MetadataType_ProtectedContent, "", true, false},
	{android::gralloc4::MetadataType_ChromaSiting, "", true, false},
	{android::gralloc4::MetadataType_Compression, "", true, false},
	{android::gralloc4::MetadataType_Interlaced, "", true, false},
	{android::gralloc4::MetadataType_PlaneLayouts, "", true, false},
	{android::gralloc4::MetadataType_Dataspace, "", true, true},
	{android::gralloc4::MetadataType_BlendMode, "", true, true},
	{android::gralloc4::MetadataType_Smpte2086, "", true, true},
	{android::gralloc4::MetadataType_Cta861_3, "", true, true},
	{android::gralloc4::MetadataType_Smpte2094_40, "", true, true},
	{android::gralloc4::MetadataType_Crop, "", true, true},
	{qtigralloc::MetadataType_VTTimestamp, "VT Timestamp", true, true},
	{qtigralloc::MetadataType_ColorMetadata, "Color metadata", true, true},
	{qtigralloc::MetadataType_PPParamInterlaced, "Interlaced", true, true},
	{qtigralloc::MetadataType_VideoPerfMode, "Video perf mode", true, true},
	{qtigralloc::MetadataType_GraphicsMetadata, "Graphics metadata", true, true},
	{qtigralloc::MetadataType_UBWCCRStatsInfo, "UBWC stats", true, true},
	{qtigralloc::MetadataType_RefreshRate, "Refresh rate", true, true},
	{qtigralloc::MetadataType_MapSecureBuffer, "Secure buffer mappable", true, true},
	{qtigralloc::MetadataType_LinearFormat, "Linear format", true, true},
	{qtigralloc::MetadataType_SingleBufferMode, "Single buffer mode flag", true, true},
	{qtigralloc::MetadataType_CVPMetadata, "CVP metadata", true, true},
	{qtigralloc::MetadataType_VideoHistogramStats, "Video histogram stats", true, true},
	#ifdef QTI_VIDEO_TRANSCODE_STATS
	{qtigralloc::MetadataType_VideoTranscodeStats, "Video transcode stats", true, true},
	#endif
	{qtigralloc::MetadataType_FD, "fd from private_handle_t", true, false},
	{qtigralloc::MetadataType_PrivateFlags, "Flags in private_handle_t", true, false},
	{qtigralloc::MetadataType_AlignedWidthInPixels, "width in private_handle_t", true, false},
	{qtigralloc::MetadataType_AlignedHeightInPixels, "height in private_handle_t", true, false},
	#ifdef METADATA_V2
	{qtigralloc::MetadataType_StandardMetadataStatus, "Is standard metadata set", true, false},
	{qtigralloc::MetadataType_VendorMetadataStatus, "Is vendor metadata set", true, false},
	#endif
	#ifdef QTI_BUFFER_TYPE
	{qtigralloc::MetadataType_BufferType, "Buffer type from private_handle_t", true, false},
	#endif
	#ifdef QTI_VIDEO_TS_INFO
	{qtigralloc::MetadataType_VideoTimestampInfo, "Video timestamp info", true, true},
	#endif
	#ifdef QTI_BUFFER_PERMISSION
	{qtigralloc::MetadataType_BufferPermission, "BufferPermission", true, true},
	#endif
	#ifdef QTI_MEM_HANDLE
	{qtigralloc::MetadataType_MemHandle, "MemHandle", true, false},
	#endif
	#ifdef QTI_TIMED_RENDERING
	{qtigralloc::MetadataType_TimedRendering, "timed rendering", true, true},
	#endif
	#ifdef QTI_CUSTOM_CONTENT_METADATA
	{qtigralloc::MetadataType_CustomContentMetadata, "Custom content metadata", true, true},
	#endif
	};
	};

	} // namespace implementation
	} // namespace V4_0
	} // namespace mapper
	} // namespace display
	} // namespace hardware
	} // namespace qti
	} // namespace vendor

	#endif // __QTIMAPPER4_H__