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/* Xpaint-procedure */
#include <Xpaint.h>
/*
* The key-word "PaintProcedure" is reserved for user-defined procedures;
* The procedure should probably involve Xpaint's internal API in some way.
*
* Pixels are unsigned char arrays p[0]=red, p[1]=green, p[2]=blue
* (thus each value should be in the range 0..255)
*
* In the example below, op = output pixel.
* The procedure below just creates an image by mapping given functions
* as red, green, blue components and stores the image to the memory.
*/
void PaintProcedure()
{
Image * image;
unsigned char * p;
int x, y;
image = ImageNew(600, 400);
for (y = 0; y < image->height; y++) {
for (x = 0; x < image->width; x++) {
p = ImagePixel(image, x, y);
p[0] = y%256;
p[1] = (x+y+x*(1000-x)/500)%256;
p[2] = x%256;
}
}
ImageToMemory(image);
}
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