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

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• Author : Kyle Piddington
  Date : 2021-04-26 16:56:15
  Hash : d7aa0130
  Message : Upstream Apple's direct-to-Metal backend: compile translator. This change is meant to merge the translator changes from Apple's direct-to-Metal backend. Taken from Kyle Piddington's CL: https://chromium-review.googlesource.com/c/angle/angle/+/2857366/ The goal of this CL is to merge the translator code in a state that compiles, but not to switch the Metal backend over to use this translator backend yet. Bug: angleproject:5505 Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

• 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_REWRITEDFDY_H_
  #define COMPILER_TRANSLATOR_TREEOPS_REWRITEDFDY_H_
  
  #include "common/angleutils.h"
  #include "compiler/translator/Compiler.h"
  
  namespace sh
  {
  
  class TCompiler;
  class TIntermNode;
  class TIntermSymbol;
  class TIntermBinary;
  class TIntermTyped;
  class TSymbolTable;
  class TVariable;
  class SpecConst;
  class DriverUniform;
  
  // If fragRotation = nullptr, no rotation will be applied.
  ANGLE_NO_DISCARD bool RewriteDfdy(TCompiler *compiler,
                                    ShCompileOptions compileOptions,
                                    TIntermNode *root,
                                    const TSymbolTable &symbolTable,
                                    int shaderVersion,
                                    SpecConst *specConst,
                                    const DriverUniform *driverUniforms);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_REWRITEDFDY_H_