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

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• Hash : b57d5638
  Author :
  Date : 2023-06-29T00:00:00
  

  Reland "Cleanup multiview support"
  
  This is a reland of commit 9a7c0b88ba68e328d3f5f7991a6df0ab5de92311
  
  Original change's description:
  > Cleanup multiview support
  >
  > * Removed remaining mentions of ANGLE_multiview
  >
  > * Removed AST transformations used only in
  >   the side-by-side multiview implementation
  >
  > * Changed the type of the internal ViewID_OVR
  >   variable to use the dedicated qualifier
  >
  > * Removed side-by-side multiview support
  >   from the D3D11 renderer
  >
  > * Removed an unused helper for side-by-side
  >   multiview support from the OpenGL renderer
  >
  > * Removed obsoleted test suppressions
  
  Fixed: angleproject:3341
  Change-Id: I3ce9304c79c0873462c73e8cf02b85f7a1aaf874
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4669604
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>
  

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• src/compiler/translator/tree_ops/DeclareAndInitBuiltinsForInstancedMultiview.h

• //
  // Copyright 2017 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.
  //
  // Regardless of the shader type, the following AST transformations are applied:
  // - Add declaration of View_ID_OVR.
  // - Replace every occurrence of gl_ViewID_OVR with ViewID_OVR, mark ViewID_OVR as internal and
  // declare it with the same qualifier.
  //
  // If the shader type is a vertex shader, the following AST transformations are applied:
  // - Replace every occurrence of gl_InstanceID with InstanceID, mark InstanceID as internal and set
  // its qualifier to EvqTemporary.
  // - Add initializers of ViewID_OVR and InstanceID to the beginning of the body of main. The pass
  // should be executed before any variables get collected so that usage of gl_InstanceID is recorded.
  // - If the output is ESSL or GLSL and the selectViewInNvGLSLVertexShader option is
  // enabled, the expression
  //   gl_Layer = int(ViewID_OVR) + multiviewBaseViewLayerIndex;
  // is added after ViewID and InstanceID are initialized. Also, multiviewBaseViewLayerIndex is added
  // as a uniform.
  //
  
  #ifndef COMPILER_TRANSLATOR_TREEOPS_DECLAREANDINITBUILTINSFORINSTANCEDMULTIVIEW_H_
  #define COMPILER_TRANSLATOR_TREEOPS_DECLAREANDINITBUILTINSFORINSTANCEDMULTIVIEW_H_
  
  #include "GLSLANG/ShaderLang.h"
  #include "angle_gl.h"
  #include "common/angleutils.h"
  
  namespace sh
  {
  
  class TCompiler;
  class TIntermBlock;
  class TSymbolTable;
  
  [[nodiscard]] bool DeclareAndInitBuiltinsForInstancedMultiview(
      TCompiler *compiler,
      TIntermBlock *root,
      unsigned numberOfViews,
      GLenum shaderType,
      const ShCompileOptions &compileOptions,
      ShShaderOutput shaderOutput,
      TSymbolTable *symbolTable);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_TREEOPS_DECLAREANDINITBUILTINSFORINSTANCEDMULTIVIEW_H_
  

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