vtkOpenGLShaderProperty.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkOpenGLShaderProperty_h
#define vtkOpenGLShaderProperty_h

#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkShader.h"                 // For methods (shader types)
#include "vtkShaderProperty.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
#include <map>                // used for ivar

VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLUniforms;
class vtkOverrideAttribute;

class VTKRENDERINGOPENGL2_EXPORT VTK_MARSHALAUTO vtkOpenGLShaderProperty : public vtkShaderProperty
{
public:
  static vtkOpenGLShaderProperty* New();
  VTK_NEWINSTANCE
  static vtkOverrideAttribute* CreateOverrideAttributes();
  vtkTypeMacro(vtkOpenGLShaderProperty, vtkShaderProperty);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void DeepCopy(vtkOpenGLShaderProperty* p);

  void AddVertexShaderReplacement(const std::string& originalValue,
    bool replaceFirst, // do this replacement before the default
    const std::string& replacementValue, bool replaceAll) override;
  void AddFragmentShaderReplacement(const std::string& originalValue,
    bool replaceFirst, // do this replacement before the default
    const std::string& replacementValue, bool replaceAll) override;
  void AddGeometryShaderReplacement(const std::string& originalValue,
    bool replaceFirst, // do this replacement before the default
    const std::string& replacementValue, bool replaceAll) override;
  void AddTessControlShaderReplacement(const std::string& originalValue,
    bool replaceFirst, // do this replacement before the default
    const std::string& replacementValue, bool replaceAll) override;
  void AddTessEvaluationShaderReplacement(const std::string& originalValue,
    bool replaceFirst, // do this replacement before the default
    const std::string& replacementValue, bool replaceAll) override;

  int GetNumberOfShaderReplacements() override;
  std::string GetNthShaderReplacementTypeAsString(vtkIdType index) override;
  void GetNthShaderReplacement(vtkIdType index, std::string& name, bool& replaceFirst,
    std::string& replacementValue, bool& replaceAll) override;

  void ClearVertexShaderReplacement(const std::string& originalValue, bool replaceFirst) override;
  void ClearFragmentShaderReplacement(const std::string& originalValue, bool replaceFirst) override;
  void ClearGeometryShaderReplacement(const std::string& originalValue, bool replaceFirst) override;
  void ClearTessControlShaderReplacement(
    const std::string& originalValue, bool replaceFirst) override;
  void ClearTessEvaluationShaderReplacement(
    const std::string& originalValue, bool replaceFirst) override;
  void ClearAllVertexShaderReplacements() override;
  void ClearAllFragmentShaderReplacements() override;
  void ClearAllGeometryShaderReplacements() override;
  void ClearAllTessControlShaderReplacements() override;
  void ClearAllTessEvalShaderReplacements() override;
  void ClearAllShaderReplacements() override;


  void AddShaderReplacement(vtkShader::Type shaderType, // vertex, fragment, etc
    const std::string& originalValue,
    bool replaceFirst, // do this replacement before the default
    const std::string& replacementValue, bool replaceAll);
  void ClearShaderReplacement(vtkShader::Type shaderType, // vertex, fragment, etc
    const std::string& originalValue, bool replaceFirst);
  void ClearAllShaderReplacements(vtkShader::Type shaderType);

  typedef std::map<vtkShader::ReplacementSpec, vtkShader::ReplacementValue> ReplacementMap;
  const ReplacementMap& GetAllShaderReplacements() { return this->UserShaderReplacements; }

protected:
  vtkOpenGLShaderProperty();
  ~vtkOpenGLShaderProperty() override;

  ReplacementMap UserShaderReplacements;

private:
  vtkOpenGLShaderProperty(const vtkOpenGLShaderProperty&) = delete;
  void operator=(const vtkOpenGLShaderProperty&) = delete;
};

#define vtkOpenGLShaderProperty_OVERRIDE_ATTRIBUTES                                                \
  vtkOpenGLShaderProperty::CreateOverrideAttributes()
VTK_ABI_NAMESPACE_END
#endif