kc3-lang/angle/src/compiler/translator/tree_ops/RewriteInterpolateAtOffset.h

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• Hash : c75473c2
  Author :
  Date : 2020-11-23T14:26:32
  

  Vulkan: Generalize FlipRotationSpecConst to SpecializationConstant
  
  Specialization constant are used not just for flip/rotation. It also
  used for other things. This CL merges all specialization constant usage
  (lineRasterEmulation, flip, rotation, halfRenderArea) into one class and
  rename FlipRotationSpecConst to SpecConst.
  
  Bug: b/173800146
  Change-Id: I8dc3354b6caedbb183cec29855fc1c301ec8872a
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2555812
  Commit-Queue: Charlie Lao <cclao@google.com>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_ops/RewriteInterpolateAtOffset.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.
  //
  // This mutating tree traversal flips the 2nd argument of interpolateAtOffset() to account for
  // Y-coordinate flipping
  //
  // From: interpolateAtOffset(float interpolant, vec2 offset);
  // To: interpolateAtOffset(float interpolant, vec2(offset * (pre-rotation * viewportYScale)));
  //
  // See http://anglebug.com/3589
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_FLIP_INTERPOLATEATOFFSET_H_
  #define COMPILER_TRANSLATOR_TREEOPS_FLIP_INTERPOLATEATOFFSET_H_
  
  #include "common/angleutils.h"
  
  namespace sh
  {
  
  class TCompiler;
  class TIntermNode;
  class TIntermBinary;
  class TIntermTyped;
  class TSymbolTable;
  
  // If fragRotation = nullptr, no rotation will be applied.
  ANGLE_NO_DISCARD bool RewriteInterpolateAtOffset(TCompiler *compiler,
                                                   ShCompileOptions compileOptions,
                                                   TIntermNode *root,
                                                   const TSymbolTable &symbolTable,
                                                   int shaderVersion,
                                                   SpecConst *specConst,
                                                   const DriverUniform *driverUniforms);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_FLIP_INTERPOLATEATOFFSET_H_
  

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