Function imSet

src/js/lib/canvg.js:2370–2372

(img, x, y, width, height, rgba, val)

			}
			
			function imSet(img, x, y, width, height, rgba, val) {
				img[y*width*4 + x*4 + rgba] = val;
			}
						
			function blur(ctx, width, height, sigma)
			{