kc3-lang/angle/util/capture/frame_capture_test_utils.cpp

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• Hash : 2f3e4db8
  Author :
  Date : 2021-09-02T10:31:13
  

  Capture/Replay: Serialize trace metadata to a JSON file.
  
  This will allow us to remove more code auto-generation for the trace
  tests. The trace info now can be loaded directly from JSON instead of
  from the autogenerated information.
  
  Bug: angleproject:5133
  Change-Id: I04e22b9279b19282df274bc8defcd363d0449111
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3140218
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  

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• util/capture/frame_capture_test_utils.cpp

• //
  // Copyright 2021 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // frame_capture_test_utils:
  //   Helper functions for capture and replay of traces.
  //
  
  #include "frame_capture_test_utils.h"
  
  #include "common/string_utils.h"
  
  #include <rapidjson/document.h>
  #include <rapidjson/istreamwrapper.h>
  #include <fstream>
  
  namespace angle
  {
  namespace
  {
  bool LoadJSONFromFile(const std::string &fileName, rapidjson::Document *doc)
  {
      std::ifstream ifs(fileName);
      if (!ifs.is_open())
      {
          return false;
      }
  
      rapidjson::IStreamWrapper inWrapper(ifs);
      doc->ParseStream(inWrapper);
      return !doc->HasParseError();
  }
  }  // namespace
  
  bool LoadTraceNamesFromJSON(const std::string jsonFilePath, std::vector<std::string> *namesOut)
  {
      rapidjson::Document doc;
      if (!LoadJSONFromFile(jsonFilePath, &doc))
      {
          return false;
      }
  
      if (!doc.IsObject() || !doc.HasMember("traces") || !doc["traces"].IsArray())
      {
          return false;
      }
  
      // Read trace json into a list of trace names.
      std::vector<std::string> traces;
  
      rapidjson::Document::Array traceArray = doc["traces"].GetArray();
      for (rapidjson::SizeType arrayIndex = 0; arrayIndex < traceArray.Size(); ++arrayIndex)
      {
          const rapidjson::Document::ValueType &arrayElement = traceArray[arrayIndex];
  
          if (!arrayElement.IsString())
          {
              return false;
          }
  
          std::vector<std::string> traceAndVersion;
          angle::SplitStringAlongWhitespace(arrayElement.GetString(), &traceAndVersion);
          traces.push_back(traceAndVersion[0]);
      }
  
      *namesOut = std::move(traces);
      return true;
  }
  
  bool LoadTraceInfoFromJSON(const std::string &traceName,
                             const std::string &traceJsonPath,
                             TraceInfo *traceInfoOut)
  {
      rapidjson::Document doc;
      if (!LoadJSONFromFile(traceJsonPath, &doc))
      {
          return false;
      }
  
      if (!doc.IsObject() || !doc.HasMember("TraceMetadata"))
      {
          return false;
      }
  
      const rapidjson::Document::Object &meta = doc["TraceMetadata"].GetObject();
  
      strncpy(traceInfoOut->name, traceName.c_str(), kTraceInfoMaxNameLen);
      traceInfoOut->contextClientMajorVersion = meta["ContextClientMajorVersion"].GetInt();
      traceInfoOut->contextClientMinorVersion = meta["ContextClientMinorVersion"].GetInt();
      traceInfoOut->frameEnd                  = meta["FrameEnd"].GetInt();
      traceInfoOut->frameStart                = meta["FrameStart"].GetInt();
      traceInfoOut->drawSurfaceHeight         = meta["DrawSurfaceHeight"].GetInt();
      traceInfoOut->drawSurfaceWidth          = meta["DrawSurfaceWidth"].GetInt();
      traceInfoOut->drawSurfaceColorSpace     = meta["DrawSurfaceColorSpace"].GetInt();
  
      traceInfoOut->displayPlatformType = meta["DisplayPlatformType"].GetInt();
      traceInfoOut->displayDeviceType   = meta["DisplayDeviceType"].GetInt();
  
      traceInfoOut->configRedBits     = meta["ConfigRedBits"].GetInt();
      traceInfoOut->configGreenBits   = meta["ConfigGreenBits"].GetInt();
      traceInfoOut->configBlueBits    = meta["ConfigBlueBits"].GetInt();
      traceInfoOut->configAlphaBits   = meta["ConfigAlphaBits"].GetInt();
      traceInfoOut->configDepthBits   = meta["ConfigDepthBits"].GetInt();
      traceInfoOut->configStencilBits = meta["ConfigStencilBits"].GetInt();
  
      traceInfoOut->isBinaryDataCompressed = meta["IsBinaryDataCompressed"].GetBool();
      traceInfoOut->areClientArraysEnabled = meta["AreClientArraysEnabled"].GetBool();
      traceInfoOut->isBindGeneratesResourcesEnabled =
          meta["IsBindGeneratesResourcesEnabled"].GetBool();
      traceInfoOut->isWebGLCompatibilityEnabled = meta["IsWebGLCompatibilityEnabled"].GetBool();
      traceInfoOut->isRobustResourceInitEnabled = meta["IsRobustResourceInitEnabled"].GetBool();
  
      return true;
  }
  }  // namespace angle
  

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