source: trunk/src/testing/app/checker/checker.cxx @ 4

/******************************************************************************
 * SAGE - Scalable Adaptive Graphics Environment
 * Copyright (C) 2004 Electronic Visualization Laboratory,
 * University of Illinois at Chicago
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 *    in the documentation and/or other materials provided with the distribution.
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//A simple test program that pushes pixels to SAGE frame buffer 
//written by Byung-il Jeong
//Feb 2005

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

// headers for SAGE
#include "sail.h"
#include "misc.h"

int main(int argc, char *argv[])
{
        double t1, t2, fps;
        sail sageInf; // sail object
        int nodeID;

        if (argc < 2)
                nodeID = 0;
        else
                nodeID = atoi(argv[1]);
                 
        int resX = 400, resY = 400;
        if (argc >= 4) {
                resX = atoi(argv[2]);
                resY = atoi(argv[3]);    
        }       
        double rate = 10.0;
        if (argc >= 5) {
                rate = atof(argv[4]);
        }       
        
        std::cout << std::endl << "ResX = " << resX << "  ResY = " << resY << std::endl;

        sailConfig scfg;
        scfg.init("checker.conf");
        scfg.setAppName("checker");
        scfg.rank = nodeID;
                        
        scfg.resX = resX;
        scfg.resY = resY;

        sageRect renderImageMap;
        renderImageMap.left = 0.0;
        renderImageMap.right = 1.0;
        renderImageMap.bottom = 0.0;
        renderImageMap.top = 1.0;

        scfg.imageMap = renderImageMap;
        scfg.pixFmt = PIXFMT_888;
        scfg.rowOrd = BOTTOM_TO_TOP;
        scfg.master = true;
        scfg.nwID = 1;
        scfg.frameRate = rate;
                         
        sageInf.init(scfg);      
        std::cout << "sail initialized " << std::endl;
        
        void *buffer = sageInf.getBuffer();
        unsigned char color = 200;
        
        while(1) {
                t1 = sage::getTime();
                memset(buffer, color, resX*resY*3);
                sageInf.swapBuffer();
                buffer = sageInf.getBuffer();
                color = (color + 1) % 129;      
                sageMessage msg;
                if (sageInf.checkMsg(msg, false) > 0) {
                        switch (msg.getCode()) {
                                 case APP_QUIT : {
                                        sageInf.shutdown();
                                        exit(0);
                                        break;
                                }
                        }       
                }
                t2 = sage::getTime();
                fps = (1000000.0/(t2-t1));
                if (fps > rate) {
                        sage::usleep( (1000000.0/rate) - (t2-t1)  );
                }
        }
        
        return 0;
}