kc3-lang/angle/src/libANGLE/renderer/VertexArrayImpl.h

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• Hash : 7c985f5c
  Author :
  Date : 2018-11-29T18:16:17
  

  Make angle::Result an enum.
  
  This moves away from a class type to a value type. This should improve
  performance when using angle::Result as a return value. Previously the
  generated code would return a pointer instead of a value.
  
  Improves performance in the most targeted microbenchmark by 10%. In
  more realistic scanarios it will have a smaller improvement. Also
  simplifies the class implementation and usage.
  
  Includes some unrelated code generation changes.
  
  Bug: angleproject:2491
  Change-Id: Ifcf86870bf1c00a2f73c39ea6e4f05ca705050aa
  Reviewed-on: https://chromium-review.googlesource.com/c/1356139
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/VertexArrayImpl.h

• //
  // Copyright 2014 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.
  //
  
  // VertexAttribImpl.h: Defines the abstract rx::VertexAttribImpl class.
  
  #ifndef LIBANGLE_RENDERER_VERTEXARRAYIMPL_H_
  #define LIBANGLE_RENDERER_VERTEXARRAYIMPL_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/Buffer.h"
  #include "libANGLE/VertexArray.h"
  
  // This is a helper X macro for iterating over all dirty attribs/bindings. Useful for dirty bits.
  static_assert(gl::MAX_VERTEX_ATTRIBS == 16, "Invalid max vertex attribs");
  static_assert(gl::MAX_VERTEX_ATTRIB_BINDINGS == 16, "Invalid max vertex bindings");
  #define ANGLE_VERTEX_INDEX_CASES(FUNC) \
      FUNC(0)                            \
      FUNC(1)                            \
      FUNC(2)                            \
      FUNC(3)                            \
      FUNC(4)                            \
      FUNC(5) FUNC(6) FUNC(7) FUNC(8) FUNC(9) FUNC(10) FUNC(11) FUNC(12) FUNC(13) FUNC(14) FUNC(15)
  
  namespace rx
  {
  class ContextImpl;
  
  class VertexArrayImpl : angle::NonCopyable
  {
    public:
      VertexArrayImpl(const gl::VertexArrayState &state) : mState(state) {}
      virtual angle::Result syncState(const gl::Context *context,
                                      const gl::VertexArray::DirtyBits &dirtyBits,
                                      const gl::VertexArray::DirtyAttribBitsArray &attribBits,
                                      const gl::VertexArray::DirtyBindingBitsArray &bindingBits)
      {
          return angle::Result::Continue;
      }
  
      virtual void destroy(const gl::Context *context) {}
      virtual ~VertexArrayImpl() {}
  
      const gl::VertexArrayState &getState() const { return mState; }
  
    protected:
      const gl::VertexArrayState &mState;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VERTEXARRAYIMPL_H_
  

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