kc3-lang/angle/src/libANGLE/renderer/gl/QueryGL.h

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• Hash : de09f8db
  Author :
  Date : 2021-09-02T18:21:37
  

  Revert "GL: Update StateManagerGL binding funcs to use ANGLE_GL_TRY"
  
  This reverts commit 4b5a774e855af2493d64b0635f56053bd795c5c5.
  
  Reason for revert: broken on iOS and Skia
  
  Original change's description:
  > GL: Update StateManagerGL binding funcs to use ANGLE_GL_TRY
  >
  > Bug: angleproject:3020
  > Change-Id: Iff460a1012d06e1c5feff84d91117de87e7c870a
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3123167
  > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  > Commit-Queue: Geoff Lang <geofflang@chromium.org>
  
  Bug: angleproject:3020
  Change-Id: I54d81a7b734d007f65ff97990008f5e6eb8536f6
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3140453
  Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/gl/QueryGL.h

• //
  // Copyright 2015 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.
  //
  
  // QueryGL.h: Defines the class interface for QueryGL.
  
  #ifndef LIBANGLE_RENDERER_GL_QUERYGL_H_
  #define LIBANGLE_RENDERER_GL_QUERYGL_H_
  
  #include <deque>
  
  #include "libANGLE/renderer/QueryImpl.h"
  
  namespace rx
  {
  
  class FunctionsGL;
  class StateManagerGL;
  
  class QueryGL : public QueryImpl
  {
    public:
      QueryGL(gl::QueryType type);
      ~QueryGL() override;
  
      // OpenGL is only allowed to have one query of each type active at any given time. Since ANGLE
      // virtualizes contexts, queries need to be able to be paused and resumed.
      // A query is "paused" by ending it and pushing the ID into a list of queries awaiting readback.
      // When it is "resumed", a new query is generated and started.
      // When a result is required, the queries are "flushed" by iterating over the list of pending
      // queries and merging their results.
      virtual angle::Result pause(const gl::Context *context)  = 0;
      virtual angle::Result resume(const gl::Context *context) = 0;
  };
  
  class StandardQueryGL : public QueryGL
  {
    public:
      StandardQueryGL(gl::QueryType type, const FunctionsGL *functions, StateManagerGL *stateManager);
      ~StandardQueryGL() override;
  
      angle::Result begin(const gl::Context *context) override;
      angle::Result end(const gl::Context *context) override;
      angle::Result queryCounter(const gl::Context *context) override;
      angle::Result getResult(const gl::Context *context, GLint *params) override;
      angle::Result getResult(const gl::Context *context, GLuint *params) override;
      angle::Result getResult(const gl::Context *context, GLint64 *params) override;
      angle::Result getResult(const gl::Context *context, GLuint64 *params) override;
      angle::Result isResultAvailable(const gl::Context *context, bool *available) override;
  
      angle::Result pause(const gl::Context *context) override;
      angle::Result resume(const gl::Context *context) override;
  
    private:
      angle::Result flush(const gl::Context *context, bool force);
  
      template <typename T>
      angle::Result getResultBase(const gl::Context *context, T *params);
  
      const FunctionsGL *mFunctions;
      StateManagerGL *mStateManager;
  
      GLuint mActiveQuery;
      std::deque<GLuint> mPendingQueries;
      GLuint64 mResultSum;
  };
  
  class SyncProviderGL;
  class SyncQueryGL : public QueryGL
  {
    public:
      SyncQueryGL(gl::QueryType type, const FunctionsGL *functions);
      ~SyncQueryGL() override;
  
      static bool IsSupported(const FunctionsGL *functions);
  
      angle::Result begin(const gl::Context *context) override;
      angle::Result end(const gl::Context *context) override;
      angle::Result queryCounter(const gl::Context *context) override;
      angle::Result getResult(const gl::Context *context, GLint *params) override;
      angle::Result getResult(const gl::Context *context, GLuint *params) override;
      angle::Result getResult(const gl::Context *context, GLint64 *params) override;
      angle::Result getResult(const gl::Context *context, GLuint64 *params) override;
      angle::Result isResultAvailable(const gl::Context *context, bool *available) override;
  
      angle::Result pause(const gl::Context *context) override;
      angle::Result resume(const gl::Context *context) override;
  
    private:
      angle::Result flush(const gl::Context *context, bool force);
  
      template <typename T>
      angle::Result getResultBase(const gl::Context *context, T *params);
  
      const FunctionsGL *mFunctions;
  
      std::unique_ptr<SyncProviderGL> mSyncProvider;
      bool mFinished;
  };
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_GL_QUERYGL_H_
  

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