kc3-lang/angle/src/libANGLE/capture/FrameCapture_mock.cpp

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• Hash : 5f092f8b
  Author :
  Date : 2021-08-17T17:15:59
  

  FrameCapture: Support glProgramBinary
  
  This CL allows applications to use glProgramBinary. Normally this is
  a problem because we need program source in order to recreate shaders
  in use during mid-execution capture. Use of program binaries
  means an app can start and render frames without having submitted
  source for that run.
  
  To support this, we will embed program source into ANGLE's binary
  format. This will allow us to extract it when the app submits the
  binary. We will only embed this when capture is enabled to prevent
  increased binary size in the common case. Since this changes ANGLE's
  binary format, apps will recreate binaries when capture is enabled.
  
  Additionally, we can't allow captures to have glProgramBinary calls
  in the middle of captured frame ranges, so intercept those calls and
  replace with a full linking sequence.
  
  Changes include:
  
  - Add new frontend feauture enableProgramBinaryForCapture that allows
    OES_get_program_binary during capture.
  - Update ANGLE's binary format to include program source when
    capture is enabled.
  - Update maybeOverrideEntryPoint to handle multiple new calls
    instead of a single call.
  - Override calls to glProgramBinary that occur mid-capture
    to instead emit a full GenerateLinkedProgram sequence.
  - Add checks for created/attached shaders during FrameCapture since
    they won't be available for programs populated by the app using
    glProgramBinary.
  
  Test: Fortnite MEC
  Bug: b/180418810
  Bug: angleproject:5658
  Change-Id: Ib2a0e9e434d3ee0f384d128c48b2a7d4834f5b0f
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3105390
  Commit-Queue: Cody Northrop <cnorthrop@google.com>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/capture/FrameCapture_mock.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.
  //
  // FrameCapture_mock.cpp:
  //   ANGLE mock Frame capture implementation.
  //
  
  #include "libANGLE/capture/FrameCapture.h"
  
  #if ANGLE_CAPTURE_ENABLED
  #    error Frame capture must be disabled to include this file.
  #endif  // ANGLE_CAPTURE_ENABLED
  
  namespace angle
  {
  CallCapture::~CallCapture() {}
  ParamBuffer::~ParamBuffer() {}
  ParamCapture::~ParamCapture() {}
  ResourceTracker::ResourceTracker() {}
  ResourceTracker::~ResourceTracker() {}
  TrackedResource::TrackedResource() {}
  TrackedResource::~TrackedResource() {}
  
  FrameCapture::FrameCapture() {}
  FrameCapture::~FrameCapture() {}
  
  FrameCaptureShared::FrameCaptureShared() : mEnabled(false) {}
  FrameCaptureShared::~FrameCaptureShared() {}
  void FrameCaptureShared::onEndFrame(const gl::Context *context) {}
  void FrameCaptureShared::onMakeCurrent(const gl::Context *context, const egl::Surface *drawSurface)
  {}
  void FrameCaptureShared::onDestroyContext(const gl::Context *context) {}
  void FrameCaptureShared::replay(gl::Context *context) {}
  const ProgramSources &FrameCaptureShared::getProgramSources(gl::ShaderProgramID id) const
  {
      const auto &foundSources = mCachedProgramSources.find(id);
      return foundSources->second;
  }
  void FrameCaptureShared::setProgramSources(gl::ShaderProgramID id, ProgramSources sources) {}
  }  // namespace angle
  

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