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Source/ThirdParty/ANGLE/src/compiler/translator/tree_ops/RewriteDfdy.h

 

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//

 

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// Copyright 2019 The ANGLE Project Authors. All rights reserved.

 

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// Use of this source code is governed by a BSD-style license that can be

 

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// found in the LICENSE file.

 

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//

 

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// This mutating tree traversal flips the output of dFdy() to account for framebuffer flipping.

 

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//

 

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// From: dFdy(p)

 

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// To:   (dFdy(p) * viewportYScale)

 

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//

 

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// See http://anglebug.com/3487

 

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#ifndef COMPILER_TRANSLATOR_TREEOPS_FLIP_DFDY_H_

 

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#define COMPILER_TRANSLATOR_TREEOPS_FLIP_DFDY_H_

 

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#include "common/angleutils.h"

 

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namespace sh

 

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{

 

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class TCompiler;

 

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class TIntermNode;

 

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class TIntermBinary;

 

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class TSymbolTable;

 

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ANGLE_NO_DISCARD bool RewriteDfdy(TCompiler *compiler,

 

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                                  TIntermNode *root,

 

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                                  const TSymbolTable &symbolTable,

 

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                                  int shaderVersion,

 

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                                  TIntermBinary *viewportYScale);

 

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}  // namespace sh

 

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#endif  // COMPILER_TRANSLATOR_TREEOPS_FLIP_DFDY_H_

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