Inventor/SoGLRenderToBuffer.h

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/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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 ***                                                                                ***
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 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
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**=======================================================================*/
/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#ifndef SOGLRENDERTOBUFFER_H
#define SOGLRENDERTOBUFFER_H

#include <Inventor/SbLinear.h>
#include <Inventor/sys/SoGLType.h>
#include <Inventor/helpers/SbGlContextHelper.h>

class SoGLGraphicConfigTemplate;
class SoGLContext;class SoDEPRECATED  SoGLRenderToBuffer
{
public:
  enum TextureFormat {
    TEXTURE_RGB = 0,
    TEXTURE_RGBA,
    TEXTURE_DEPTH,
    TEXTURE_DEPTH16,
    TEXTURE_DEPTH_RGBA,
    TEXTURE_RGB_FLOAT16,
    TEXTURE_RGBA_FLOAT16,
    TEXTURE_RGB_FLOAT32,
    TEXTURE_RGBA_FLOAT32,
    TEXTURE_STENCIL_INDEX8,
    TEXTURE_STENCIL_INDEX,
    TEXTURE_DEPTH_STENCIL,
    TEXTURE_UNKNOW
  };

  enum TextureTarget {
    TEXTURE_1D = 0,
    TEXTURE_2D,
    TEXTURE_3D,
    TEXTURE_CUBE_MAP,
    TEXTURE_RECTANGLE
  };

  enum CubeMapTextureFace {
    TEXTURE_CUBE_MAP_POSITIVE_X = 0,
    TEXTURE_CUBE_MAP_POSITIVE_Y,
    TEXTURE_CUBE_MAP_POSITIVE_Z,
    TEXTURE_CUBE_MAP_NEGATIVE_X,
    TEXTURE_CUBE_MAP_NEGATIVE_Y,
    TEXTURE_CUBE_MAP_NEGATIVE_Z
  };

  virtual ~SoGLRenderToBuffer();

  static SbBool isAvailable(SbGlContextHelper::Display display = NULL);

  virtual SbBool create(SbVec2s size) = 0;

  virtual SbBool create(SbVec2i32 size) = 0;

  virtual SbBool makeCurrent() = 0;

  virtual void disable() = 0;

  void shareCurrentContext() {}

  virtual void setDisplayConnection(SbGlContextHelper::Display /* display */) {};

  virtual void setContextForSharing(SoGLContext* /* context */) {};

  virtual SbBool resize(const SbVec2s &size) = 0;

  virtual SbBool resize(const SbVec2i32 &size) = 0;

  virtual SbVec2s getSize() const = 0;

  virtual const SbVec2i32& getSize_i32() const = 0;

  virtual void setPixelFormat(int format) { m_pfd = format; }

  virtual int getPixelFormat() { return m_pfd; }

  virtual void setRenderToTexture(SbBool enable, TextureFormat format = TEXTURE_RGB, TextureTarget target = TEXTURE_2D,
                                  SbBool autoMipmap = FALSE, SbBool hasDepth = FALSE) = 0;

  virtual SbBool bindToTexture(SbBool bindDepth = FALSE, GLuint texObj=-1) = 0;

  virtual SbBool releaseTexImage(SbBool bindDepth = FALSE) = 0;

  virtual SbBool selectCubeMapFace(CubeMapTextureFace face) = 0;

  virtual SoGLGraphicConfigTemplate* getGraphicConfigTemplate() { return m_currentGraphicConfigTemplate; }

  virtual void setGraphicConfigTemplate(SoGLGraphicConfigTemplate* gTemplate) { m_currentGraphicConfigTemplate = gTemplate; }

  static SoGLRenderToBuffer* createInstance(bool forcePbuffer, SbGlContextHelper::Display display = NULL);

  virtual SbBool isPBuffer()
  { return FALSE; }

private:
  static GLenum getGLInternalFormat(SoGLRenderToBuffer::TextureFormat fmt);
  static GLenum getGLTextureTarget(TextureTarget target);
  static GLenum getGLCubeMapTextureFace(CubeMapTextureFace face);

  static SoGLRenderToBuffer::TextureFormat getTextureFormatFromGLFormat(GLenum fmt);

  virtual void setFaceTarget(int /* faceTarget */) {};

private:
  SoGLRenderToBuffer();

  SoGLGraphicConfigTemplate* m_currentGraphicConfigTemplate;

  int m_pfd;
private:
};
/*****************************************************************************/

#endif // SOGLRENDERTOBUFFER_H

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