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kc3-lang/angle/src/compiler/translator/tree_ops/RewriteCubeMapSamplersAs2DArray.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/RewriteCubeMapSamplersAs2DArray.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.
//
// RewriteCubeMapSamplersAs2DArray: Change samplerCube samplers to sampler2DArray, and the
// textureCube* function calls to calls to helper functions that select the cube map face and sample
// from the face as a 2D texture.  This emulates seamful cube map sampling in ES2 (or desktop GL 2)
// and therefore only looks at samplerCube (i.e. not integer variants or cube arrays) and sampling
// functions that are defined in ES GLSL 1.0 (i.e. not the cube overload of texture()).

#ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITECUBEMAPSAMPLERSAS2DARRAY_H_
#define COMPILER_TRANSLATOR_TREEOPS_REWRITECUBEMAPSAMPLERSAS2DARRAY_H_

#include "common/angleutils.h"

namespace sh
{
class TCompiler;
class TIntermBlock;
class TSymbolTable;

ANGLE_NO_DISCARD bool RewriteCubeMapSamplersAs2DArray(TCompiler *compiler,
                                                      TIntermBlock *root,
                                                      TSymbolTable *symbolTable,
                                                      bool isFragmentShader);
}  // namespace sh

#endif  // COMPILER_TRANSLATOR_TREEOPS_REWRITECUBEMAPSAMPLERSAS2DARRAY_H_