for i in [0..4[ do cpixels[offset+i] = bytes[i]
end
+ # Overwrite all pixels with `color`
+ #
+ # The argument `color` should be an array of up to 4 floats (RGBA).
+ # If `color` has less than 4 items, the missing items are replaced by 1.0.
+ #
+ # Require: `not loaded`
+ fun fill(color: Array[Float])
+ do
+ assert not loaded else print_error "{class_name}::fill already loaded"
+
+ # Simple conversion from [0.0..1.0] to [0..255]
+ var bytes = [for c in color do (c*255.0).round.to_i.clamp(0, 255).to_bytes.last]
+ while bytes.length < 4 do bytes.add 255u8
+
+ var i = 0
+ for x in [0..width.to_i[ do
+ for y in [0..height.to_i[ do
+ for j in [0..4[ do cpixels[i+j] = bytes[j]
+ i += 4
+ end
+ end
+ end
+
redef fun load(force)
do
if loaded then return