OpenGLRenderer.h

///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2013, Sony Pictures Imageworks
// All rights reserved.
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///////////////////////////////////////////////////////////////////////////////
//
//  GPURenderer.h
//  spReticle.1.7
//
//  Created by Henry Vera on 4/23/13.
//
//

#ifndef spReticle_OpenGLRenderer_h
#define spReticle_OpenGLRenderer_h

#include <iostream>
#include <map>
#include <stdlib.h>

#include "defines.h"
#include "font.h"

#include "GPURenderer.h"

#if defined(OSMac_MachO_)
#    include <OpenGL/gl.h>
#else
#    if defined(_WIN32)
#       include <windows.h>
#    endif
#    include <GL/gl.h>
#endif

// General OpenGL Renderer
class OpenGLRenderer : public GPURenderer
{
    public:
        OpenGLRenderer();
        virtual ~OpenGLRenderer();
        
        virtual void prepareForDraw(float portWidth, float portHeight);
        virtual void postDraw();
    
        // Given two Geom instances, this renders the mask area between them.
        virtual void drawMask( Geom g1, Geom g2, MColor color, bool sides, bool top );
        
        // This draws a single line between the specified points.
        virtual void drawLine(double x1, double x2, double y1, double y2,
                              MColor color, bool stipple);
        
        // Given a Geom instance, this will draw a line connecting the points.
        // The argument side determines whether the sides will be drawn (the top
        // will always be drawn). The stipple argument specifies whether the line
        // should be solid or dashed/stippled.
        virtual void drawLines( Geom g, MColor color, bool sides, bool stipple);
        
        // This function is responsible for rendering text.
        virtual void drawText(TextData *td, double tx, double ty);
        
        // Make sure everything is ready for text drawing
        virtual void enableTextRendering();
        
        // Turn off text rendering
        virtual void disableTextRendering();
    
    private:
        class FontData
        {
        public:
            int                 size;
            TextureFont         *normal;
            TextureFont         *bold;
            TextureFont         *generic;
            FontData(int fontSize) {
                size    =fontSize;
                normal  = NULL;
                bold    =NULL;
                generic =NULL;
            }
        };
        
        typedef std::map<int,FontData *> FontMap;
        FontMap    fontMap;
        
        GLint blendAttrs[2];
};

#endif