Function lwGetPixel

app/redis-6.2.6/src/lolwut.c:119–123

Return the value of the specified pixel on the canvas. */

/* Return the value of the specified pixel on the canvas. */
int lwGetPixel(lwCanvas *canvas, int x, int y) {
    if (x < 0 || x >= canvas->width ||
        y < 0 || y >= canvas->height) return 0;
    return canvas->pixels[x+y*canvas->width];
}

/* Draw a line from x1,y1 to x2,y2 using the Bresenham algorithm. */
void lwDrawLine(lwCanvas *canvas, int x1, int y1, int x2, int y2, int color) {