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

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• Hash : 11d7b952
  Author :
  Date : 2020-06-02T16:58:26
  

  Vulkan: Pre-rotate dFdx() & dFdy() for Android
  
  Test: angle_deqp_gles3_tests --gtest_filter=dEQP.GLES3/functional_shaders_derivate
  Test: angle_end2end_tests --gtest_filter=*EGLPreRotationSurfaceTest.OrientedWindow
  Bug: b/157476241
  Change-Id: I7b60b7a33313ba91731755d289792bd0968515c6
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2222825
  Commit-Queue: Ian Elliott <ianelliott@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/compiler/translator/tree_ops/RewriteDfdy.h

• //
  // Copyright 2019 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 output of dFdy() to account for framebuffer flipping.
  //
  // From: dFdy(p)
  // To:   (dFdy(p) * viewportYScale)
  //
  // See http://anglebug.com/3487
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_FLIP_DFDY_H_
  #define COMPILER_TRANSLATOR_TREEOPS_FLIP_DFDY_H_
  
  #include "common/angleutils.h"
  
  namespace sh
  {
  
  class TCompiler;
  class TIntermNode;
  class TIntermBinary;
  class TIntermTyped;
  class TSymbolTable;
  
  ANGLE_NO_DISCARD bool RewriteDfdy(TCompiler *compiler,
                                    TIntermNode *root,
                                    const TSymbolTable &symbolTable,
                                    int shaderVersion,
                                    TIntermBinary *flipXY,
                                    TIntermTyped *fragRotation);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_FLIP_DFDY_H_
  

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