From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../translator/tree_ops/InitializeVariables.h | 60 ++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 gfx/angle/checkout/src/compiler/translator/tree_ops/InitializeVariables.h (limited to 'gfx/angle/checkout/src/compiler/translator/tree_ops/InitializeVariables.h') diff --git a/gfx/angle/checkout/src/compiler/translator/tree_ops/InitializeVariables.h b/gfx/angle/checkout/src/compiler/translator/tree_ops/InitializeVariables.h new file mode 100644 index 0000000000..755b8d72eb --- /dev/null +++ b/gfx/angle/checkout/src/compiler/translator/tree_ops/InitializeVariables.h @@ -0,0 +1,60 @@ +// +// Copyright 2002 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. +// + +#ifndef COMPILER_TRANSLATOR_TREEOPS_INITIALIZEVARIABLES_H_ +#define COMPILER_TRANSLATOR_TREEOPS_INITIALIZEVARIABLES_H_ + +#include + +#include "compiler/translator/ExtensionBehavior.h" +#include "compiler/translator/IntermNode.h" + +namespace sh +{ +class TCompiler; +class TSymbolTable; + +typedef std::vector InitVariableList; + +// For all of the functions below: If canUseLoopsToInitialize is set, for loops are used instead of +// a large number of initializers where it can make sense, such as for initializing large arrays. + +// Populate a sequence of assignment operations to initialize "initializedSymbol". initializedSymbol +// may be an array, struct or any combination of these, as long as it contains only basic types. +void CreateInitCode(const TIntermTyped *initializedSymbol, + bool canUseLoopsToInitialize, + bool highPrecisionSupported, + TIntermSequence *initCode, + TSymbolTable *symbolTable); + +// Initialize all uninitialized local variables, so that undefined behavior is avoided. +[[nodiscard]] bool InitializeUninitializedLocals(TCompiler *compiler, + TIntermBlock *root, + int shaderVersion, + bool canUseLoopsToInitialize, + bool highPrecisionSupported, + TSymbolTable *symbolTable); + +// This function can initialize all the types that CreateInitCode is able to initialize. All +// variables must be globals which can be found in the symbol table. For now it is used for the +// following two scenarios: +// 1. Initializing gl_Position; +// 2. Initializing output variables referred to in the shader source. +// Note: The type of each lvalue in an initializer is retrieved from the symbol table. gl_FragData +// requires special handling because the number of indices which can be initialized is determined by +// enabled extensions. +[[nodiscard]] bool InitializeVariables(TCompiler *compiler, + TIntermBlock *root, + const InitVariableList &vars, + TSymbolTable *symbolTable, + int shaderVersion, + const TExtensionBehavior &extensionBehavior, + bool canUseLoopsToInitialize, + bool highPrecisionSupported); + +} // namespace sh + +#endif // COMPILER_TRANSLATOR_TREEOPS_INITIALIZEVARIABLES_H_ -- cgit v1.2.3