kc3-lang/angle/src/compiler/translator/tree_util/FlipRotateSpecConst.h

• Show log

  Commit

• Hash : 24f64249
  Author :
  Date : 2020-11-16T17:55:02
  

  Vulkan: Track specialization constant usage bit and feedback to ctx
  
  Right now context does not know which specialization constant is used by
  the shader. Whenever a specialization constant changes, we assume shader
  program is using it, we always reach into vulkan driver to ask for a new
  program. Instead we can track shader's usage of specialization constant
  so that context can utilize this information to avoid recompile pipeline
  program if an unused specialization constant has changed.
  
  This CL implements the plumbing the usage bits form compiler to program
  object, it does not actually utilize the usage bits to avoid unnecessary
  compilation yet.
  
  Bug: b/173461931
  Change-Id: Iebc9d0638c17b1a282c8b6093ce6bae154246e57
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2542866
  Reviewed-by: Ian Elliott <ianelliott@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Charlie Lao <cclao@google.com>
  

Download

• src/compiler/translator/tree_util/FlipRotateSpecConst.h

• //
  // Copyright 2020 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.
  //
  // FlipRotationSpecConst.h: Add code to generate AST node for flip and rotation matrices and
  // vectors.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEUTIL_FLIPROTATESPECCONST_H_
  #define COMPILER_TRANSLATOR_TREEUTIL_FLIPROTATESPECCONST_H_
  
  #include "common/angleutils.h"
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/SymbolTable.h"
  
  class TIntermTyped;
  class TIntermSymbol;
  class TVariable;
  
  namespace sh
  {
  
  class FlipRotateSpecConst
  {
    public:
      FlipRotateSpecConst();
      ~FlipRotateSpecConst();
  
      TIntermTyped *getMultiplierXForDFdx();
      TIntermTyped *getMultiplierYForDFdx();
      TIntermTyped *getMultiplierXForDFdy();
      TIntermTyped *getMultiplierYForDFdy();
      TIntermTyped *getPreRotationMatrix();
      TIntermTyped *getFragRotationMatrix();
      TIntermTyped *getFlipXY();
      TIntermTyped *getNegFlipXY();
      TIntermTyped *getFlipY();
      TIntermTyped *getNegFlipY();
      TIntermTyped *getFragRotationMultiplyFlipXY();
  
      void generateSymbol(TSymbolTable *symbolTable);
      void outputLayoutString(TInfoSinkBase &sink) const;
      SpecConstUsageBits getSpecConstUsageBits() const { return mUsageBits; }
  
    private:
      TIntermSymbol *mSpecConstSymbol;
      // Bit is set if YFlip or Rotation has been used
      SpecConstUsageBits mUsageBits;
  };
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEUTIL_FLIPROTATESPECCONST_H_
  

Download