/**
 * Testing all effects
 */


#include "gd.h"
#include "gdtest.h"


int main()
{
    gdImagePtr im;
    int effects[] = {
        gdEffectReplace, gdEffectAlphaBlend, gdEffectNormal,
        gdEffectOverlay, gdEffectMultiply
    };
    int red[3], blue[3];
    int x, y, i, j;
    char *path;

    red[0] = gdTrueColorAlpha(0, 0, 255, 127);
    red[1] = gdTrueColorAlpha(0, 0, 255, 63);
    red[2] = gdTrueColorAlpha(0, 0, 255, 0);
    blue[0] = gdTrueColorAlpha(255, 0, 0, 127);
    blue[1] = gdTrueColorAlpha(255, 0, 0, 63);
    blue[2] = gdTrueColorAlpha(255, 0, 0, 0);

    im = gdImageCreateTrueColor(120, 180);

    gdImageAlphaBlending(im, gdEffectReplace);
    for (j = 0; j < 3; j++) {
        y = 60 * j;
        gdImageFilledRectangle(im, 0,y, 119,y+59, red[j]);
    }

    for (i = 0; i < 5; i++) {
        x = 20 * i;
        gdImageAlphaBlending(im, effects[i]);
        for (j = 0; j < 9; j++) {
            y = 20 * j;
            gdImageFilledRectangle(im, x+20,y, x+39,y+19, blue[j % 3]);
        }
    }

    gdImageSaveAlpha(im, 1);

    path = gdTestFilePath2("gdimagesetpixel", "alphablending_exp.png");
    gdAssertImageEqualsToFile(path, im);
    gdFree(path);

    gdImageDestroy(im);

    return gdNumFailures();
}