kc3-lang/angle/src/compiler/translator/SizeClipCullDistance.cpp

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• Hash : b0ee4239
  Author :
  Date : 2025-10-01T16:46:10
  

  Translator: Validate clip/cull distance size during parse
  
  ... instead of in a post-parse pass.  In this process, these array sizes
  are determined during parse itself, and so can be applied to the IR
  earlier.
  
  Bug: angleproject:349994211
  Change-Id: I542970f9262e346fd7443e48d780e8abfec95315
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/7003832
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/compiler/translator/SizeClipCullDistance.cpp

• //
  // Copyright 2025 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.
  //
  
  #include "SizeClipCullDistance.h"
  
  #include "compiler/translator/SymbolTable.h"
  #include "compiler/translator/tree_util/IntermTraverse.h"
  #include "compiler/translator/tree_util/ReplaceVariable.h"
  #include "compiler/translator/util.h"
  
  namespace sh
  {
  bool SizeClipCullDistance(TCompiler *compiler,
                            TIntermBlock *root,
                            const ImmutableString &name,
                            uint8_t size)
  {
      const TVariable *var = static_cast<const TVariable *>(
          compiler->getSymbolTable().findBuiltIn(name, compiler->getShaderVersion()));
      ASSERT(var != nullptr);
  
      if (size != var->getType().getOutermostArraySize())
      {
          TType *resizedType = new TType(var->getType());
          resizedType->setArraySize(0, size);
          TVariable *resizedVar =
              new TVariable(&compiler->getSymbolTable(), name, resizedType, SymbolType::BuiltIn);
          if (!ReplaceVariable(compiler, root, var, resizedVar))
          {
              return false;
          }
          var = resizedVar;
      }
  
      TIntermDeclaration *globalDecl = new TIntermDeclaration();
      globalDecl->appendDeclarator(new TIntermSymbol(var));
      root->insertStatement(0, globalDecl);
  
      return compiler->validateAST(root);
  }
  }  // namespace sh
  

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