kc3-lang/angle/src/compiler/translator/BuiltinsWorkaroundGLSL.h

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• Hash : cd31f286
  Author :
  Date : 2019-06-25T14:22:41
  

  Implement Draw base vertex and base instance functions
  
  This patch implements functionality of  glDrawArraysInstancedBaseInstanceANGLE,
  glDrawElementsInstancedBaseVertexBaseInstanceANGLE,
  glMultiDrawArraysInstancedBaseInstanceANGLE,
  and glMultiDrawElementsInstancedBaseVertexBaseInstanceANGLE
  
  Workaround for OpenGL driver on Mac:
  gl_VertexID on Mac with AMD GPU doesn't include baseVertex value.
  So replace gl_VertexID with (gl_VertexID + angle_BaseVertex) if any.
  
  Workaround for Vulkan GLSL:
  gl_InstanceIndex on Vulkan includes baseInstance. So replace
  gl_InstanceIndex with (gl_InstanceIndex - angle_BaseInstance) when
  angle_BaseInstance is declared.
  
  Bug: chromium:891861, angleproject:3402
  Change-Id: Ia1d94b5d4d7da7e635468c05c962c4f7eb1b1919
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1750126
  Commit-Queue: Shrek Shao <shrekshao@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/compiler/translator/BuiltinsWorkaroundGLSL.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.
  //
  
  #ifndef COMPILER_TRANSLATOR_BUILTINSWORKAROUNDGLSL_H_
  #define COMPILER_TRANSLATOR_BUILTINSWORKAROUNDGLSL_H_
  
  #include "compiler/translator/tree_util/IntermTraverse.h"
  
  #include "compiler/translator/Pragma.h"
  
  namespace sh
  {
  
  ANGLE_NO_DISCARD bool ShaderBuiltinsWorkaround(TCompiler *compiler,
                                                 TIntermBlock *root,
                                                 TSymbolTable *symbolTable,
                                                 ShCompileOptions compileOptions);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_BUILTINSWORKAROUNDGLSL_H_
  

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