diff options
| -rw-r--r-- | img.mu | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/img.mu b/img.mu index 0f20953c..59807dc0 100644 --- a/img.mu +++ b/img.mu @@ -984,6 +984,13 @@ fn dither-ppm-unordered _src: (addr image), _dest: (addr image) { copy-to blue-level, tmp } # - figure out the nearest color +#? { +#? compare red-level, 0x80 +#? break-if-> +#? draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, red-level, 4/fg 0/bg +#? draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, green-level, 2/fg 0/bg +#? draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, blue-level, 9/fg 0/bg +#? } var nearest-color-index/eax: int <- nearest-color-euclidean red-level, green-level, blue-level { var nearest-color-index-byte/eax: byte <- copy-byte nearest-color-index @@ -1029,7 +1036,7 @@ fn dither-ppm-unordered _src: (addr image), _dest: (addr image) { # convert a single channel for a single image pixel to error space fn _ppm-error buf: (addr array byte), x: int, y: int, width: int, channel: int, _scale-f: float -> _/eax: int { # current image pixel - var initial-level/eax: byte <- _read-ppm-buffer buf, x, y, width, 0/red + var initial-level/eax: byte <- _read-ppm-buffer buf, x, y, width, channel # scale to 255 levels var initial-level-int/eax: int <- copy initial-level var initial-level-f/xmm0: float <- convert initial-level-int |