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

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• Hash : 23f213d1
  Author :
  Date : 2022-05-26T23:43:44
  

  Vulkan: Make drawable size uniform
  
  As a specialization constant, it's impossible to predict the value the
  drawable size may take, which in turn makes it impossible to warm up the
  Vulkan pipeline cache at link time.
  
  Bug: angleproject:7366
  Change-Id: Ia3d1860a4fcb8e3078fdcb8d02a2e0cd173ea028
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3671976
  Reviewed-by: Charlie Lao <cclao@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_util/SpecializationConstant.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.
  //
  // SpecializationConst.h: Add code to generate AST node for specialization constant.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEUTIL_SPECIALIZATIONCONSTANT_H_
  #define COMPILER_TRANSLATOR_TREEUTIL_SPECIALIZATIONCONSTANT_H_
  
  #include "common/angleutils.h"
  #include "compiler/translator/Compiler.h"
  #include "compiler/translator/SymbolTable.h"
  
  class TIntermBlock;
  class TIntermTyped;
  class TIntermSymbol;
  class TVariable;
  
  namespace sh
  {
  
  class SpecConst
  {
    public:
      SpecConst(TSymbolTable *symbolTable, ShCompileOptions compileOptions, GLenum shaderType);
      virtual ~SpecConst();
  
      // Line rasterizaton emulation
      TIntermSymbol *getLineRasterEmulation();
  
      // Flip/rotation
      // Returns a boolean: should X and Y be swapped?
      TIntermTyped *getSwapXY();
  
      // Dither emulation
      TIntermTyped *getDither();
  
      void declareSpecConsts(TIntermBlock *root);
      SpecConstUsageBits getSpecConstUsageBits() const { return mUsageBits; }
  
    private:
      TIntermSymbol *getRotation();
  
      // If unsupported, this should be set to null.
      TSymbolTable *mSymbolTable;
      ShCompileOptions mCompileOptions;
  
      TVariable *mLineRasterEmulationVar;
      TVariable *mSurfaceRotationVar;
      TVariable *mDitherVar;
  
      // Bit is set if YFlip or Rotation has been used
      SpecConstUsageBits mUsageBits;
  };
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEUTIL_SPECIALIZATIONCONSTANT_H_
  

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