surround_view/service-impl/ConfigReader.cpp - platform/packages/services/Car - Git at Google

 /*
  * Copyright 2020 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.
  */

 #include "ConfigReader.h"
 #include "ConfigReaderUtil.h"
 #include "core_lib.h"

 #include <android-base/logging.h>
 #include <tinyxml2.h>
 #include <sstream>
 #include <string>
 #include <utility>

 namespace android {
 namespace hardware {
 namespace automotive {
 namespace sv {
 namespace V1_0 {
 namespace implementation {

 using tinyxml2::XML_SUCCESS;
 using tinyxml2::XMLDocument;
 using tinyxml2::XMLElement;

 using android_auto::surround_view::SurroundView2dParams;
 using android_auto::surround_view::SurroundView3dParams;

 namespace {

 // Macro returning IoStatus::ERROR_CONFIG_FILE_FORMAT if condition evaluates to false.
 #define RETURN_ERROR_STATUS_IF_FALSE(cond)             \
     do {                                               \
         if (!(cond)) {                                 \
             return IOStatus::ERROR_CONFIG_FILE_FORMAT; \
         }                                              \
     } while (0)

 // ReadValue for SurroundView2dParams::BlendingType.
 bool ReadValue2dBlendType(const XMLElement* parent, const char* elementName,
                           SurroundView2dParams::BlendingType* value) {
     const XMLElement* element = nullptr;
     RETURN_IF_FALSE(GetElement(parent, elementName, &element));
     RETURN_IF_FALSE(ElementHasText(element));
     const std::string blendingTypeStr(element->GetText());

     if (blendingTypeStr == "multiband") {
         *value = SurroundView2dParams::BlendingType::MULTIBAND;
     } else if (blendingTypeStr == "alpha") {
         *value = SurroundView2dParams::BlendingType::ALPHA;
     } else {
         LOG(ERROR) << "Unknown BlendingType specified: " << blendingTypeStr;
         return false;
     }
     return true;
 }

 bool ReadSvConfig2d(const XMLElement* parent, SvConfig2d* sv2dConfig) {
     RETURN_IF_FALSE(ReadValue(parent, "Sv2dEnabled", &sv2dConfig->sv2dEnabled));
     if (!sv2dConfig->sv2dEnabled) {
         return true;
     }

     SurroundView2dParams* sv2dParams = &sv2dConfig->sv2dParams;
     const XMLElement* param2dElem = nullptr;
     RETURN_IF_FALSE(GetElement(parent, "Sv2dParams", &param2dElem));
     {
         // OutputResolution
         const XMLElement* outputResolutionElem = nullptr;
         RETURN_IF_FALSE(GetElement(param2dElem, "OutputResolution", &outputResolutionElem));
         {
             RETURN_IF_FALSE(
                     ReadValue(outputResolutionElem, "Width", &sv2dParams->resolution.width));
             RETURN_IF_FALSE(
                     ReadValue(outputResolutionElem, "Height", &sv2dParams->resolution.height));
         }

         // GroundMapping
         const XMLElement* groundMappingElem = nullptr;
         RETURN_IF_FALSE(GetElement(param2dElem, "GroundMapping", &groundMappingElem));
         {
             RETURN_IF_FALSE(
                     ReadValue(groundMappingElem, "Width", &sv2dParams->physical_size.width));
             RETURN_IF_FALSE(
                     ReadValue(groundMappingElem, "Height", &sv2dParams->physical_size.height));

             // Center
             const XMLElement* centerElem = nullptr;
             RETURN_IF_FALSE(GetElement(groundMappingElem, "Center", &centerElem));
             {
                 RETURN_IF_FALSE(ReadValue(centerElem, "X", &sv2dParams->physical_center.x));
                 RETURN_IF_FALSE(ReadValue(centerElem, "Y", &sv2dParams->physical_center.y));
             }
         }

         // Car Bounding Box
         const XMLElement* carBoundingBoxElem = nullptr;
         RETURN_IF_FALSE(GetElement(param2dElem, "CarBoundingBox", &carBoundingBoxElem));
         {
             RETURN_IF_FALSE(
                     ReadValue(carBoundingBoxElem, "Width", &sv2dConfig->carBoundingBox.width));
             RETURN_IF_FALSE(
                     ReadValue(carBoundingBoxElem, "Height", &sv2dConfig->carBoundingBox.height));

             // Center
             const XMLElement* leftTopCornerElem = nullptr;
             RETURN_IF_FALSE(GetElement(carBoundingBoxElem, "LeftTopCorner", &leftTopCornerElem));
             {
                 RETURN_IF_FALSE(ReadValue(leftTopCornerElem, "X", &sv2dConfig->carBoundingBox.x));
                 RETURN_IF_FALSE(ReadValue(leftTopCornerElem, "Y", &sv2dConfig->carBoundingBox.y));
             }
         }

         // Blending type
         const XMLElement* blendingTypeElem = nullptr;
         RETURN_IF_FALSE(GetElement(param2dElem, "BlendingType", &blendingTypeElem));
         {
             RETURN_IF_FALSE(ReadValue2dBlendType(blendingTypeElem, "HighQuality",
                                                  &sv2dParams->high_quality_blending));
             RETURN_IF_FALSE(ReadValue2dBlendType(blendingTypeElem, "LowQuality",
                                                  &sv2dParams->low_quality_blending));
         }
     }
     return true;
 }

 bool ReadSvConfig3d(const XMLElement* parent, SvConfig3d* sv3dConfig) {
     RETURN_IF_FALSE(ReadValue(parent, "Sv3dEnabled", &sv3dConfig->sv3dEnabled));
     if (!sv3dConfig->sv3dEnabled) {
         return true;
     }
     RETURN_IF_FALSE(ReadValue(parent, "Sv3dAnimationsEnabled", &sv3dConfig->sv3dAnimationsEnabled));

     if (sv3dConfig->sv3dAnimationsEnabled) {
         RETURN_IF_FALSE(ReadValue(parent, "CarModelConfigFile", &sv3dConfig->carModelConfigFile));
     }

     RETURN_IF_FALSE(ReadValue(parent, "CarModelObjFile", &sv3dConfig->carModelObjFile));

     SurroundView3dParams* sv3dParams = &sv3dConfig->sv3dParams;
     const XMLElement* param3dElem = nullptr;
     RETURN_IF_FALSE(GetElement(parent, "Sv3dParams", &param3dElem));
     {
         // OutputResolution
         const XMLElement* outputResolutionElem = nullptr;
         RETURN_IF_FALSE(GetElement(param3dElem, "OutputResolution", &outputResolutionElem));
         {
             RETURN_IF_FALSE(
                     ReadValue(outputResolutionElem, "Width", &sv3dParams->resolution.width));
             RETURN_IF_FALSE(
                     ReadValue(outputResolutionElem, "Height", &sv3dParams->resolution.height));
         }

         // Bowl Params
         const XMLElement* bowlParamsElem = nullptr;
         RETURN_IF_FALSE(GetElement(param3dElem, "BowlParams", &bowlParamsElem));
         {
             RETURN_IF_FALSE(ReadValue(bowlParamsElem, "PlaneRadius", &sv3dParams->plane_radius));
             RETURN_IF_FALSE(
                     ReadValue(bowlParamsElem, "PlaneDivisions", &sv3dParams->plane_divisions));
             RETURN_IF_FALSE(ReadValue(bowlParamsElem, "CurveHeight", &sv3dParams->curve_height));
             RETURN_IF_FALSE(
                     ReadValue(bowlParamsElem, "CurveDivisions", &sv3dParams->curve_divisions));
             RETURN_IF_FALSE(
                     ReadValue(bowlParamsElem, "AngularDivisions", &sv3dParams->angular_divisions));
             RETURN_IF_FALSE(
                     ReadValue(bowlParamsElem, "CurveCoefficient", &sv3dParams->curve_coefficient));
         }

         // High Quality details
         const XMLElement* highQualityDetailsElem = nullptr;
         GetElement(param3dElem, "HighQualityDetails", &highQualityDetailsElem);
         {
             RETURN_IF_FALSE(ReadValue(highQualityDetailsElem, "Shadows",
                                       &sv3dParams->high_details_shadows));
             RETURN_IF_FALSE(ReadValue(highQualityDetailsElem, "Reflections",
                                       &sv3dParams->high_details_reflections));
         }
     }
     return true;
 }

 bool ReadCameraConfig(const XMLElement* parent, CameraConfig* cameraConfig) {
     const XMLElement* cameraConfigElem = nullptr;
     RETURN_IF_FALSE(GetElement(parent, "CameraConfig", &cameraConfigElem));
     {
         // Evs Group Id
         RETURN_IF_FALSE(ReadValue(cameraConfigElem, "EvsGroupId", &cameraConfig->evsGroupId));

         // Evs Cameras Ids
         const XMLElement* cameraIdsElem = nullptr;
         RETURN_IF_FALSE(GetElement(cameraConfigElem, "EvsCameraIds", &cameraIdsElem));
         {
             cameraConfig->evsCameraIds.resize(4);
             RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Front", &cameraConfig->evsCameraIds[0]));
             RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Right", &cameraConfig->evsCameraIds[1]));
             RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Rear", &cameraConfig->evsCameraIds[2]));
             RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Left", &cameraConfig->evsCameraIds[3]));
         }

         // Masks (Optional).
         const XMLElement* masksElem = nullptr;
         GetElement(cameraConfigElem, "Masks", &masksElem);
         if (masksElem != nullptr) {
             cameraConfig->maskFilenames.resize(4);
             RETURN_IF_FALSE(ReadValue(masksElem, "Front", &cameraConfig->maskFilenames[0]));
             RETURN_IF_FALSE(ReadValue(masksElem, "Right", &cameraConfig->maskFilenames[1]));
             RETURN_IF_FALSE(ReadValue(masksElem, "Rear", &cameraConfig->maskFilenames[2]));
             RETURN_IF_FALSE(ReadValue(masksElem, "Left", &cameraConfig->maskFilenames[3]));
         }
     }
     return true;
 }

 }  // namespace

 IOStatus ReadSurroundViewConfig(const std::string& configFile, SurroundViewConfig* svConfig) {
     XMLDocument xmlDoc;

     // load and parse a configuration file
     xmlDoc.LoadFile(configFile.c_str());
     if (xmlDoc.ErrorID() != XML_SUCCESS) {
         LOG(ERROR) << "Failed to load and/or parse a configuration file, " << xmlDoc.ErrorStr();
         return IOStatus::ERROR_READ_CONFIG_FILE;
     }

     const XMLElement* rootElem = xmlDoc.RootElement();
     if (strcmp(rootElem->Name(), "SurroundViewConfig")) {
         LOG(ERROR) << "Config file is not in the required format: " << configFile;
         return IOStatus::ERROR_READ_CONFIG_FILE;
     }

     // version
     RETURN_ERROR_STATUS_IF_FALSE(ReadValue(rootElem, "Version", &svConfig->version));

     // CameraConfig
     RETURN_ERROR_STATUS_IF_FALSE(ReadCameraConfig(rootElem, &svConfig->cameraConfig));

     // Surround View 2D
     RETURN_ERROR_STATUS_IF_FALSE(ReadSvConfig2d(rootElem, &svConfig->sv2dConfig));

     // Surround View 3D
     RETURN_ERROR_STATUS_IF_FALSE(ReadSvConfig3d(rootElem, &svConfig->sv3dConfig));

     return IOStatus::OK;
 }

 }  // namespace implementation
 }  // namespace V1_0
 }  // namespace sv
 }  // namespace automotive
 }  // namespace hardware
 }  // namespace android
	/*
	* Copyright 2020 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.
	*/

	#include "ConfigReader.h"
	#include "ConfigReaderUtil.h"
	#include "core_lib.h"

	#include <android-base/logging.h>
	#include <tinyxml2.h>
	#include <sstream>
	#include <string>
	#include <utility>

	namespace android {
	namespace hardware {
	namespace automotive {
	namespace sv {
	namespace V1_0 {
	namespace implementation {

	using tinyxml2::XML_SUCCESS;
	using tinyxml2::XMLDocument;
	using tinyxml2::XMLElement;

	using android_auto::surround_view::SurroundView2dParams;
	using android_auto::surround_view::SurroundView3dParams;

	namespace {

	// Macro returning IoStatus::ERROR_CONFIG_FILE_FORMAT if condition evaluates to false.
	#define RETURN_ERROR_STATUS_IF_FALSE(cond) \
	do { \
	if (!(cond)) { \
	return IOStatus::ERROR_CONFIG_FILE_FORMAT; \
	} \
	} while (0)

	// ReadValue for SurroundView2dParams::BlendingType.
	bool ReadValue2dBlendType(const XMLElement* parent, const char* elementName,
	SurroundView2dParams::BlendingType* value) {
	const XMLElement* element = nullptr;
	RETURN_IF_FALSE(GetElement(parent, elementName, &element));
	RETURN_IF_FALSE(ElementHasText(element));
	const std::string blendingTypeStr(element->GetText());

	if (blendingTypeStr == "multiband") {
	*value = SurroundView2dParams::BlendingType::MULTIBAND;
	} else if (blendingTypeStr == "alpha") {
	*value = SurroundView2dParams::BlendingType::ALPHA;
	} else {
	LOG(ERROR) << "Unknown BlendingType specified: " << blendingTypeStr;
	return false;
	}
	return true;
	}

	bool ReadSvConfig2d(const XMLElement* parent, SvConfig2d* sv2dConfig) {
	RETURN_IF_FALSE(ReadValue(parent, "Sv2dEnabled", &sv2dConfig->sv2dEnabled));
	if (!sv2dConfig->sv2dEnabled) {
	return true;
	}

	SurroundView2dParams* sv2dParams = &sv2dConfig->sv2dParams;
	const XMLElement* param2dElem = nullptr;
	RETURN_IF_FALSE(GetElement(parent, "Sv2dParams", &param2dElem));
	{
	// OutputResolution
	const XMLElement* outputResolutionElem = nullptr;
	RETURN_IF_FALSE(GetElement(param2dElem, "OutputResolution", &outputResolutionElem));
	{
	RETURN_IF_FALSE(
	ReadValue(outputResolutionElem, "Width", &sv2dParams->resolution.width));
	RETURN_IF_FALSE(
	ReadValue(outputResolutionElem, "Height", &sv2dParams->resolution.height));
	}

	// GroundMapping
	const XMLElement* groundMappingElem = nullptr;
	RETURN_IF_FALSE(GetElement(param2dElem, "GroundMapping", &groundMappingElem));
	{
	RETURN_IF_FALSE(
	ReadValue(groundMappingElem, "Width", &sv2dParams->physical_size.width));
	RETURN_IF_FALSE(
	ReadValue(groundMappingElem, "Height", &sv2dParams->physical_size.height));

	// Center
	const XMLElement* centerElem = nullptr;
	RETURN_IF_FALSE(GetElement(groundMappingElem, "Center", &centerElem));
	{
	RETURN_IF_FALSE(ReadValue(centerElem, "X", &sv2dParams->physical_center.x));
	RETURN_IF_FALSE(ReadValue(centerElem, "Y", &sv2dParams->physical_center.y));
	}
	}

	// Car Bounding Box
	const XMLElement* carBoundingBoxElem = nullptr;
	RETURN_IF_FALSE(GetElement(param2dElem, "CarBoundingBox", &carBoundingBoxElem));
	{
	RETURN_IF_FALSE(
	ReadValue(carBoundingBoxElem, "Width", &sv2dConfig->carBoundingBox.width));
	RETURN_IF_FALSE(
	ReadValue(carBoundingBoxElem, "Height", &sv2dConfig->carBoundingBox.height));

	// Center
	const XMLElement* leftTopCornerElem = nullptr;
	RETURN_IF_FALSE(GetElement(carBoundingBoxElem, "LeftTopCorner", &leftTopCornerElem));
	{
	RETURN_IF_FALSE(ReadValue(leftTopCornerElem, "X", &sv2dConfig->carBoundingBox.x));
	RETURN_IF_FALSE(ReadValue(leftTopCornerElem, "Y", &sv2dConfig->carBoundingBox.y));
	}
	}

	// Blending type
	const XMLElement* blendingTypeElem = nullptr;
	RETURN_IF_FALSE(GetElement(param2dElem, "BlendingType", &blendingTypeElem));
	{
	RETURN_IF_FALSE(ReadValue2dBlendType(blendingTypeElem, "HighQuality",
	&sv2dParams->high_quality_blending));
	RETURN_IF_FALSE(ReadValue2dBlendType(blendingTypeElem, "LowQuality",
	&sv2dParams->low_quality_blending));
	}
	}
	return true;
	}

	bool ReadSvConfig3d(const XMLElement* parent, SvConfig3d* sv3dConfig) {
	RETURN_IF_FALSE(ReadValue(parent, "Sv3dEnabled", &sv3dConfig->sv3dEnabled));
	if (!sv3dConfig->sv3dEnabled) {
	return true;
	}
	RETURN_IF_FALSE(ReadValue(parent, "Sv3dAnimationsEnabled", &sv3dConfig->sv3dAnimationsEnabled));

	if (sv3dConfig->sv3dAnimationsEnabled) {
	RETURN_IF_FALSE(ReadValue(parent, "CarModelConfigFile", &sv3dConfig->carModelConfigFile));
	}

	RETURN_IF_FALSE(ReadValue(parent, "CarModelObjFile", &sv3dConfig->carModelObjFile));

	SurroundView3dParams* sv3dParams = &sv3dConfig->sv3dParams;
	const XMLElement* param3dElem = nullptr;
	RETURN_IF_FALSE(GetElement(parent, "Sv3dParams", &param3dElem));
	{
	// OutputResolution
	const XMLElement* outputResolutionElem = nullptr;
	RETURN_IF_FALSE(GetElement(param3dElem, "OutputResolution", &outputResolutionElem));
	{
	RETURN_IF_FALSE(
	ReadValue(outputResolutionElem, "Width", &sv3dParams->resolution.width));
	RETURN_IF_FALSE(
	ReadValue(outputResolutionElem, "Height", &sv3dParams->resolution.height));
	}

	// Bowl Params
	const XMLElement* bowlParamsElem = nullptr;
	RETURN_IF_FALSE(GetElement(param3dElem, "BowlParams", &bowlParamsElem));
	{
	RETURN_IF_FALSE(ReadValue(bowlParamsElem, "PlaneRadius", &sv3dParams->plane_radius));
	RETURN_IF_FALSE(
	ReadValue(bowlParamsElem, "PlaneDivisions", &sv3dParams->plane_divisions));
	RETURN_IF_FALSE(ReadValue(bowlParamsElem, "CurveHeight", &sv3dParams->curve_height));
	RETURN_IF_FALSE(
	ReadValue(bowlParamsElem, "CurveDivisions", &sv3dParams->curve_divisions));
	RETURN_IF_FALSE(
	ReadValue(bowlParamsElem, "AngularDivisions", &sv3dParams->angular_divisions));
	RETURN_IF_FALSE(
	ReadValue(bowlParamsElem, "CurveCoefficient", &sv3dParams->curve_coefficient));
	}

	// High Quality details
	const XMLElement* highQualityDetailsElem = nullptr;
	GetElement(param3dElem, "HighQualityDetails", &highQualityDetailsElem);
	{
	RETURN_IF_FALSE(ReadValue(highQualityDetailsElem, "Shadows",
	&sv3dParams->high_details_shadows));
	RETURN_IF_FALSE(ReadValue(highQualityDetailsElem, "Reflections",
	&sv3dParams->high_details_reflections));
	}
	}
	return true;
	}

	bool ReadCameraConfig(const XMLElement* parent, CameraConfig* cameraConfig) {
	const XMLElement* cameraConfigElem = nullptr;
	RETURN_IF_FALSE(GetElement(parent, "CameraConfig", &cameraConfigElem));
	{
	// Evs Group Id
	RETURN_IF_FALSE(ReadValue(cameraConfigElem, "EvsGroupId", &cameraConfig->evsGroupId));

	// Evs Cameras Ids
	const XMLElement* cameraIdsElem = nullptr;
	RETURN_IF_FALSE(GetElement(cameraConfigElem, "EvsCameraIds", &cameraIdsElem));
	{
	cameraConfig->evsCameraIds.resize(4);
	RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Front", &cameraConfig->evsCameraIds[0]));
	RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Right", &cameraConfig->evsCameraIds[1]));
	RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Rear", &cameraConfig->evsCameraIds[2]));
	RETURN_IF_FALSE(ReadValue(cameraIdsElem, "Left", &cameraConfig->evsCameraIds[3]));
	}

	// Masks (Optional).
	const XMLElement* masksElem = nullptr;
	GetElement(cameraConfigElem, "Masks", &masksElem);
	if (masksElem != nullptr) {
	cameraConfig->maskFilenames.resize(4);
	RETURN_IF_FALSE(ReadValue(masksElem, "Front", &cameraConfig->maskFilenames[0]));
	RETURN_IF_FALSE(ReadValue(masksElem, "Right", &cameraConfig->maskFilenames[1]));
	RETURN_IF_FALSE(ReadValue(masksElem, "Rear", &cameraConfig->maskFilenames[2]));
	RETURN_IF_FALSE(ReadValue(masksElem, "Left", &cameraConfig->maskFilenames[3]));
	}
	}
	return true;
	}

	} // namespace

	IOStatus ReadSurroundViewConfig(const std::string& configFile, SurroundViewConfig* svConfig) {
	XMLDocument xmlDoc;

	// load and parse a configuration file
	xmlDoc.LoadFile(configFile.c_str());
	if (xmlDoc.ErrorID() != XML_SUCCESS) {
	LOG(ERROR) << "Failed to load and/or parse a configuration file, " << xmlDoc.ErrorStr();
	return IOStatus::ERROR_READ_CONFIG_FILE;
	}

	const XMLElement* rootElem = xmlDoc.RootElement();
	if (strcmp(rootElem->Name(), "SurroundViewConfig")) {
	LOG(ERROR) << "Config file is not in the required format: " << configFile;
	return IOStatus::ERROR_READ_CONFIG_FILE;
	}

	// version
	RETURN_ERROR_STATUS_IF_FALSE(ReadValue(rootElem, "Version", &svConfig->version));

	// CameraConfig
	RETURN_ERROR_STATUS_IF_FALSE(ReadCameraConfig(rootElem, &svConfig->cameraConfig));

	// Surround View 2D
	RETURN_ERROR_STATUS_IF_FALSE(ReadSvConfig2d(rootElem, &svConfig->sv2dConfig));

	// Surround View 3D
	RETURN_ERROR_STATUS_IF_FALSE(ReadSvConfig3d(rootElem, &svConfig->sv3dConfig));

	return IOStatus::OK;
	}

	} // namespace implementation
	} // namespace V1_0
	} // namespace sv
	} // namespace automotive
	} // namespace hardware
	} // namespace android