kc3-lang/angle/samples/capture_replay/CaptureReplay.cpp

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• Hash : 52152933
  Author :
  Date : 2023-06-06T15:36:36
  

  Add trace_interface: functions and callbacks for traces
  
  Defines the interface between the test suite
  (or an other TraceLibrary class user) and trace libraries.
  
  TraceFunctions defines entry points for calls suite->trace, such as
  SetupReplay() or SetBinaryDataDir().
  
  TraceCallbacks defines entry points for calls trace->suite, for example
  for loading .angledata.gz files.
  
  These are set up via the exported SetupEntryPoints() call. Functions
  like SetupReplay etc no longer need to be exported from the trace
  library.
  
  TraceInfo (parsed representation of the trace json) is moved to
  trace_interface as is. This is convenient for further changes to the
  fixture that will allow to easily move some of the captured parameters
  to json.
  
  This also moves Decompress functionality (and memory ownership) to test
  suite entirely, which avoids Decompress/Delete callbacks - the trace
  just calls LoadBinaryData via TraceCallbacks and TraceLibrary releases
  the memory either on FinishReplay or in its destructor.
  This should also take care of the memory leak described in
  https://crrev.com/c/3858185
  
  Bug: b/286072760
  Change-Id: Ibc6f6f64156ad805b1917c8fc41a3b0d2c0d6375
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4594445
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Commit-Queue: Roman Lavrov <romanl@google.com>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  

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• samples/capture_replay/CaptureReplay.cpp

• //
  // Copyright 2019 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.
  //
  // CaptureReplay: Template for replaying a frame capture with ANGLE.
  
  #include "SampleApplication.h"
  
  #include <functional>
  
  #include "util/capture/frame_capture_test_utils.h"
  
  class CaptureReplaySample : public SampleApplication
  {
    public:
      CaptureReplaySample(int argc, char **argv, const angle::TraceInfo &traceInfo)
          : SampleApplication("CaptureReplaySample",
                              argc,
                              argv,
                              ClientType::ES3_0,
                              traceInfo.drawSurfaceWidth,
                              traceInfo.drawSurfaceHeight),
            mTraceInfo(traceInfo)
      {}
  
      bool initialize() override
      {
          mTraceLibrary.reset(new angle::TraceLibrary("capture_replay_sample_trace"));
          assert(mTraceLibrary->valid());
  
          std::stringstream binaryPathStream;
          binaryPathStream << angle::GetExecutableDirectory() << angle::GetPathSeparator()
                           << ANGLE_CAPTURE_REPLAY_SAMPLE_DATA_DIR;
          mTraceLibrary->setBinaryDataDir(binaryPathStream.str().c_str());
          mTraceLibrary->setupReplay();
          return true;
      }
  
      void destroy() override { mTraceLibrary->finishReplay(); }
  
      void draw() override
      {
          // Compute the current frame, looping from frameStart to frameEnd.
          uint32_t frame = mTraceInfo.frameStart +
                           (mCurrentFrame % ((mTraceInfo.frameEnd - mTraceInfo.frameStart) + 1));
          if (mPreviousFrame > frame)
          {
              mTraceLibrary->resetReplay();
          }
          mTraceLibrary->replayFrame(frame);
          mPreviousFrame = frame;
          mCurrentFrame++;
      }
  
    private:
      uint32_t mCurrentFrame  = 0;
      uint32_t mPreviousFrame = 0;
      const angle::TraceInfo mTraceInfo;
      std::unique_ptr<angle::TraceLibrary> mTraceLibrary;
  };
  
  int main(int argc, char **argv)
  {
      std::string exeDir = angle::GetExecutableDirectory();
  
      std::stringstream traceJsonPathStream;
      traceJsonPathStream << exeDir << angle::GetPathSeparator()
                          << ANGLE_CAPTURE_REPLAY_SAMPLE_DATA_DIR << angle::GetPathSeparator()
                          << "angle_capture.json";
  
      std::string traceJsonPath = traceJsonPathStream.str();
  
      angle::TraceInfo traceInfo = {};
      if (!angle::LoadTraceInfoFromJSON("capture_replay_sample_trace", traceJsonPath, &traceInfo))
      {
          std::cout << "Unable to load trace data: " << traceJsonPath << "\n";
          return 1;
      }
  
      CaptureReplaySample app(argc, argv, traceInfo);
      return app.run();
  }
  

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