GLImageShader2D.h

/*
 * #%L
 * OME-QTWIDGETS C++ library for display of Bio-Formats pixel data and metadata.
 * %%
 * Copyright © 2014 - 2016 Open Microscopy Environment:
 *   - Massachusetts Institute of Technology
 *   - National Institutes of Health
 *   - University of Dundee
 *   - Board of Regents of the University of Wisconsin-Madison
 *   - Glencoe Software, Inc.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */

#ifndef OME_QTWIDGETS_GLSL_V110_GLIMAGESHADER2D_H
#define OME_QTWIDGETS_GLSL_V110_GLIMAGESHADER2D_H

#include <QOpenGLShader>
#include <QOpenGLBuffer>
#include <QtGui/QOpenGLFunctions>

#include <ome/bioformats/Types.h>

#include <ome/qtwidgets/glm.h>

namespace ome
{
  namespace qtwidgets
  {
    namespace glsl
    {
      namespace v110
      {

        class GLImageShader2D : public QOpenGLShaderProgram,
                                protected QOpenGLFunctions
        {
          Q_OBJECT

        public:
          explicit GLImageShader2D(QObject *parent = 0);

          ~GLImageShader2D();

          void
          enableCoords();

          void
          disableCoords();

          void
          setCoords(const GLfloat *offset = 0,
                    int            tupleSize = 2,
                    int            stride = 0);

          void
          setCoords(QOpenGLBuffer&  coords,
                    const GLfloat  *offset = 0,
                    int             tupleSize = 2,
                    int             stride = 0);

          void
          enableTexCoords();

          void
          disableTexCoords();

          void
          setTexCoords(const GLfloat *offset = 0,
                       int            tupleSize = 2,
                       int            stride = 0);

          void
          setTexCoords(QOpenGLBuffer&  coords,
                       const GLfloat  *offset = 0,
                       int             tupleSize = 2,
                       int             stride = 0);

          void
          setTexture(int texunit);

          void
          setMin(const glm::vec3& min);

          void
          setMax(const glm::vec3& max);

          void
          setCorrection(const glm::vec3& corr);
          
          void
          setLUT(int texunit);

          void
          setModelViewProjection(const glm::mat4& mvp);

        private:
          QOpenGLShader *vshader;
          QOpenGLShader *fshader;

          int attr_coords;
          int attr_texcoords;
          int uniform_mvp;
          int uniform_texture;
          int uniform_lut;
          int uniform_min;
          int uniform_max;
          int uniform_corr;
        };

      }
    }
  }
}

#endif // OME_QTWIDGETS_GLSL_V110_GLIMAGESHADER2D_H

/*
 * Local Variables:
 * mode:C++
 * End:
 */