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video_base.cpp

//FILE:         video_base.cpp
//AUTHOR:       Nathan Cournia <nathan@cournia.com>

#include <iostream>
#include "video_base.h"

void 
video_base::render_string( real_t &x, real_t &y, const gl::ttf *font, 
        real_t size, const std::string& text )
{
        //sanity check on font
        assert( font );
        
        //map the virtual resolution to the real resolution
        real_t scale = m_width / 1024.0;
        x *= scale;
        y *= scale;
        size *= scale;

        //do we need to enable 2d mode
        if( m_2d_enabled > 0 ) {
                //render the string
                font->render_string( x, y, size, text );
        } else {
                //enable 2d mode
                enable_2d( );

                //render the string
                font->render_string( x, y, size, text );

                //back to 3d mode
                disable_2d( );
        }

        //map x and y coords back to virtual coords
        scale = 1 / scale;
        x *= scale;
        y *= scale;
}

void 
video_base::render_shadowed_string( real_t &x, real_t &y, const gl::ttf *font, 
        real_t size, real_t shadow, const std::string& text )
{
        //sanity check on font
        assert( font );
        
        //map the virtual resolution to the real resolution
        real_t scale = m_width / 1024.0;
        x *= scale;
        y *= scale;
        size *= scale;
        shadow *= scale;

        //save the x and y values
        real_t x_save = x;
        real_t y_save = y;

        //save the current color
        float color[ 4 ];
        glGetFloatv( GL_CURRENT_COLOR, color );

        //do we need to enable 2d mode
        if( m_2d_enabled > 0 ) {
                //render the shadow
                x += shadow; y -= shadow;
                glColor4f( 0.0, 0.0, 0.0, 0.9 );
                font->render_string( x, y, size, text );
                
                //render the string
                x = x_save; y = y_save;
                glColor4fv( color );
                font->render_string( x, y, size, text );
        } else {
                //enable 2d mode
                enable_2d( );

                //render the shadow
                x += shadow; y -= shadow;
                glColor4f( 0.0, 0.0, 0.0, 0.9 );
                font->render_string( x, y, size, text );
                
                //render the string
                x = x_save; y = y_save;
                glColor4fv( color );
                font->render_string( x, y, size, text );

                //back to 3d mode
                disable_2d( );
        }

        //map x and y coords back to virtual coords
        scale = 1 / scale;
        x *= scale;
        y *= scale;
}

void 
video_base::render_image( const rectf& rect, const gl::texture& texture )
{
        //sanity check on texture
        assert( texture );
        
        //map the virtual resolution to the real resolution
        real_t scale = m_width / 1024.0;
        rectf r = rect;
        r.scale( scale );

        //do we need to enable 2d mode
        if( m_2d_enabled > 0 ) {
                //render the image
                gl::render_image( r, texture );
        } else {
                //enable 2d mode
                enable_2d( );

                //render the image
                gl::render_image( r, texture );

                //back to 3d mode
                disable_2d( );
        }
}

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