SoUniformParameterBase.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef SO_UNIFORM_PARAMETER_BASE_H
#define SO_UNIFORM_PARAMETER_BASE_H
 
 
 
#include "SoShaderSystem.h"
#include <Inventor/SbString.h>
#include <mlOpenGL.h>
 
#ifdef WIN32
#  pragma warning( push )
#  pragma warning( disable : 4100 )
#endif
 
SoEXTENDER class INVENTOR_SHADER_API SoUniformParameterBase
{
  protected:
 
    SoUniformParameterBase();
 
    virtual ~SoUniformParameterBase();
 
  public:
 
    virtual int addTextureSampler(const SbString & /*name*/) { return 0; }
 
    // These functions are used to assign values to uniform parameter via OpenGL
    virtual void set1f(const SbString & /*name*/, const float   /*value*/) {}
    virtual void set2f(const SbString & /*name*/, const float * /*value*/) {}
    virtual void set3f(const SbString & /*name*/, const float * /*value*/) {}
    virtual void set4f(const SbString & /*name*/, const float * /*value*/) {}
    virtual void set2f(const SbString & /*name*/, const float /*value0*/, const float /*value1*/) {}
    virtual void set3f(const SbString & /*name*/, const float /*value0*/, const float /*value1*/, const float /*value2*/) {}
    virtual void set4f(const SbString & /*name*/, const float /*value0*/, const float /*value1*/, const float /*value2*/, const float /*value3*/) {}
 
    virtual void set1fv(const SbString & /*name*/, const int /*num*/, const float * /*value*/) {}
    virtual void set2fv(const SbString & /*name*/, const int /*num*/, const float * /*value*/) {}
    virtual void set3fv(const SbString & /*name*/, const int /*num*/, const float * /*value*/) {}
    virtual void set4fv(const SbString & /*name*/, const int /*num*/, const float * /*value*/) {}
 
    virtual void set1i(const SbString & /*name*/, const int32_t   /*value*/) {}
    virtual void set2i(const SbString & /*name*/, const int32_t * /*value*/) {}
    virtual void set2i(const SbString & /*name*/, const SbVec2s & /*value*/) {}
    virtual void set3i(const SbString & /*name*/, const int32_t * /*value*/) {}
    virtual void set3i(const SbString & /*name*/, const SbVec3s & /*value*/) {}
    virtual void set4i(const SbString & /*name*/, const int32_t * /*value*/) {}
 
    virtual void setMatrix3f(const SbString & name, const float * values, SbBool transpose = FALSE) { setMatrix3fv(name, 1, values, transpose); }
    virtual void setMatrix4f(const SbString & name, const float * values, SbBool transpose = FALSE) { setMatrix4fv(name, 1, values, transpose); }
    virtual void setMatrix3fv(const SbString & /*name*/, int /*num*/, const float * /*value*/, SbBool /*transpose*/ = FALSE) {}
    virtual void setMatrix4fv(const SbString & /*name*/, int /*num*/, const float * /*value*/, SbBool /*transpose*/ = FALSE) {}
 
  public:
 
    enum SamplerType {
      SAMPLER_1D,
      SAMPLER_2D,
      SAMPLER_3D,
      SAMPLER_CUBEMAP
    };
 
    // Provide additional information about the purpose of a uniform parameter. Those information
    // may be collected and analyzed by derived classes.
    virtual void setSamplerInfo(const SbString & /*name*/, SamplerType /*type*/, uint32_t /*texId*/) {}
};
 
class INVENTOR_SHADER_API SoShaderParameterCollector : public SoUniformParameterBase {
public:
  //all these functions are used by uniform parameters to notify the collector
  void set1f(const SbString &name, const float  value) override;
  void set2f(const SbString &name, const float *value) override;
  void set3f(const SbString &name, const float *value) override;
  void set4f(const SbString &name, const float *value) override;
  void set2f(const SbString &name, const float value0, const float value1) override;
  void set3f(const SbString &name, const float value0, const float value1, const float value2) override;
  void set4f(const SbString &name, const float value0, const float value1, const float value2, const float value3) override;
 
  void set1fv(const SbString &name, const int num, const float *value) override;
  void set2fv(const SbString &name, const int num, const float *value) override;
  void set3fv(const SbString &name, const int num, const float *value) override;
  void set4fv(const SbString &name, const int num, const float *value) override;
 
  void set1i(const SbString &name, const int32_t  value) override;
  void set2i(const SbString &name, const int32_t *value) override;
  void set2i(const SbString &name, const SbVec2s &value) override;
  void set3i(const SbString &name, const int32_t *value) override;
  void set3i(const SbString &name, const SbVec3s &value) override;
  void set4i(const SbString &name, const int32_t *value) override;
 
  void setMatrix3fv(const SbString &name, int num, const float *value, SbBool transpose = FALSE) override;
  void setMatrix4fv(const SbString &name, int num, const float *value, SbBool transpose = FALSE) override;
 
  void setSamplerInfo(const SbString &name, SamplerType type, uint32_t texId) override;
 
  const std::vector<ml::OpenGL::TypeInfo>& getUniforms() const { return _uniforms; }
 
private:
  std::vector<ml::OpenGL::TypeInfo> _uniforms;
 
};
 
#ifdef WIN32
#  pragma warning( pop )
#endif
 
#endif // _SO_UNIFORM_PARAMETER_BASE_