typedef struct _AUX_RGBImageRec {
    GLint sizeX, sizeY;
    unsigned char *data;
} AUX_RGBImageRec;

#ifdef PLATFORM_WIN32
#define RGBA_FIX(q) Swap(q->r, q->b);
#endif

#ifdef PLATFORM_POSIX
#ifdef CPU_BE
#define RGBA_FIX(q) { Swap(q->a, q->b); Swap(q->b, q->g); Swap(q->r, q->g); }
#else
#define RGBA_FIX(q) Swap(q->r, q->b);
#endif
#endif

Image RGBAFormat(Image img)
{
	ImageBuffer ib(img);
	RGBA *eoi = ~ib + ib.GetLength();
	for (RGBA *q = ~ib; q < eoi; q++)
		RGBA_FIX(q);
	return ib;
}

GLuint GLTexture(Image img)
{
	GLuint texnum = 0;
	Size sz = img.GetSize();
	Image copy = RGBAFormat(img);

	glGenTextures(1, &texnum);
	glBindTexture(GL_TEXTURE_2D, texnum);
	   
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
	
	glTexImage2D(GL_TEXTURE_2D, 0, 4, sz.cx, sz.cy, 0, GL_RGBA, GL_UNSIGNED_BYTE, ~copy);
	gluBuild2DMipmaps(GL_TEXTURE_2D, 4, sz.cx, sz.cy, GL_RGBA, GL_UNSIGNED_BYTE, ~copy);
	return texnum;	
}

	void Init() 
	{
		wglMakeCurrent(GLCtrl::GetDC(), GLCtrl::GetHGLRC());
		
		texture = GLTexture(StreamRaster::LoadFileAny("C:\\texture.png"));
		
		wglMakeCurrent(NULL, NULL);
	}

        virtual void GLPaint()
        {
                ....Set up viewports/molelview matrix as necessary
		glEnable(GL_TEXTURE_2D);
		glBindTexture(GL_TEXTURE_2D, texture);
		glPushMatrix();
		glTranslatef(0, 0, -6);
		glBegin(GL_QUADS);
			glColor3f(1.0f, 1.0f, 1.0f);
			
			glTexCoord2f(0.0f, 1.0f);
			glVertex3f(0.0f, 0.0f, 1.0f);
			
			glTexCoord2f(1.0f, 1.0f);
			glVertex3f(1.0f, 0.0f, 1.0f);
			
			glTexCoord2f(1.0f, 0.0f);			
			glVertex3f(1.0f, 1.0f, 1.0f);
			
			glTexCoord2f(0.0f, 0.0f);
			glVertex3f(0.0f, 1.0f, 1.0f);
		glEnd();
		glPopMatrix();
        }

virtual void State(int reason) 
{
   GLCtrl::State(reason);
   if (reason == Ctrl::OPEN) {
      wglMakeCurrent(GLCtrl::GetDC(), GLCtrl::GetHGLRC());
      GLInit();
      wglMakeCurrent(NULL, NULL);
   }
}