finally a clue: error is going over 255
Exactly in the places to the right of the line.
This commit is contained in:
parent
250de0442b
commit
59732e2ba9
84
img.mu
84
img.mu
|
@ -28,9 +28,11 @@ fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk)
|
|||
var img/esi: (addr image) <- address img-storage
|
||||
load-image img, data-disk
|
||||
#? render-image screen, img, 0/x, 0/y, 0x300/width, 0x300/height
|
||||
render-image screen, img, 0x20/x, 0x80/y, 0x258/width=600, 0x190/height=400
|
||||
set-cursor-position screen, 0 0
|
||||
render-image screen, img, 0/x, 0/y, 0x258/width=600, 0x190/height=400
|
||||
#? draw-rect screen, 0x5c 0x60, 0x6c 0x6c, 9/blue
|
||||
#? render-image screen, img, 0x20/x, 0x80/y, 0x12c/width=300, 0xc8/height=200
|
||||
#? render-pgm-image screen, img, 0x220/x, 0x80/y, 0x12c/width=300, 0xc8/height=200
|
||||
render-pgm-image screen, img, 0x220/x, 0x80/y, 0x12c/width=300, 0xc8/height=200
|
||||
}
|
||||
|
||||
fn load-image self: (addr image), data-disk: (addr disk) {
|
||||
|
@ -111,7 +113,7 @@ fn render-image screen: (addr screen), _img: (addr image), xmin: int, ymin: int,
|
|||
var img2-storage: image
|
||||
var img2/edi: (addr image) <- address img2-storage
|
||||
dither-pgm-unordered img, img2
|
||||
render-raw-image screen, img2, xmin, ymin, width, height
|
||||
#? render-raw-image screen, img2, xmin, ymin, width, height
|
||||
return
|
||||
}
|
||||
{
|
||||
|
@ -473,12 +475,32 @@ fn dither-pgm-unordered _src: (addr image), _dest: (addr image) {
|
|||
{
|
||||
compare y, src-height
|
||||
break-if->=
|
||||
set-cursor-position 0/screen, 0 0
|
||||
draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, "y ", 3/fg 0/bg
|
||||
draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, y, 3/fg 0/bg
|
||||
var x/ecx: int <- copy 0
|
||||
{
|
||||
compare x, src-width
|
||||
break-if->=
|
||||
#? psd "x", x, 3/fg, x, y
|
||||
var initial-color/eax: byte <- _read-pgm-buffer src-data, x, y, src-width
|
||||
#? {
|
||||
#? var foo/eax: int <- copy initial-color
|
||||
#? psd "r", foo, 7/fg, x, y
|
||||
#? }
|
||||
var error/esi: int <- _read-dithering-error errors, x, y, src-width
|
||||
{
|
||||
var foo/eax: int <- copy error
|
||||
foo <- shift-right-signed 0x10
|
||||
compare foo, 0xff
|
||||
break-if-<
|
||||
pixel 0/screen x, y, 4/red
|
||||
#? set-cursor-position 0/screen, 0x20 0x20
|
||||
#? draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, x, 3/fg 0/bg
|
||||
#? draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, y, 4/fg 0/bg
|
||||
#? abort "error too high"
|
||||
#? psd "e", foo, 5/fg, x, y
|
||||
}
|
||||
# error += (initial-color << 16)
|
||||
{
|
||||
var tmp/eax: int <- copy initial-color
|
||||
|
@ -512,13 +534,23 @@ fn dither-pgm-unordered _src: (addr image), _dest: (addr image) {
|
|||
var color-index/eax: int <- copy nearest-color
|
||||
color-index <- shift-right 4
|
||||
color-index <- add 0x10
|
||||
#? psd "p", color-index, 4/fg, x, y
|
||||
var color-index-byte/eax: byte <- copy-byte color-index
|
||||
_write-raw-buffer dest-data, x, y, src-width, color-index-byte
|
||||
_diffuse-dithering-error-floyd-steinberg errors, x, y, src-width, src-height, error
|
||||
x <- increment
|
||||
loop
|
||||
}
|
||||
move-cursor-to-left-margin-of-next-line 0/screen
|
||||
#? {
|
||||
#? compare y, 0x60
|
||||
#? break-if-<
|
||||
move-cursor-to-left-margin-of-next-line 0/screen
|
||||
#? }
|
||||
#? {
|
||||
#? var key/eax: byte <- read-key 0/keyboard
|
||||
#? compare key, 0
|
||||
#? loop-if-=
|
||||
#? }
|
||||
y <- increment
|
||||
loop
|
||||
}
|
||||
|
@ -672,19 +704,54 @@ fn show-errors errors: (addr array int), width: int, height: int, x: int, y: int
|
|||
|
||||
fn psd s: (addr array byte), d: int, fg: int, x: int, y: int {
|
||||
#? {
|
||||
#? compare y, 3
|
||||
#? break-if-=
|
||||
#? compare y, 0x60
|
||||
#? break-if->=
|
||||
#? return
|
||||
#? }
|
||||
#? {
|
||||
#? compare x, 4
|
||||
#? break-if-<
|
||||
#? compare y, 0x6c
|
||||
#? break-if-<=
|
||||
#? return
|
||||
#? }
|
||||
{
|
||||
compare x, 0x40
|
||||
break-if->=
|
||||
return
|
||||
}
|
||||
#? {
|
||||
#? compare x, 0x6c
|
||||
#? break-if-<=
|
||||
#? return
|
||||
#? }
|
||||
draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, s, 7/fg 0/bg
|
||||
draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, d, fg 0/bg
|
||||
}
|
||||
|
||||
fn psx s: (addr array byte), d: int, fg: int, x: int, y: int {
|
||||
#? {
|
||||
#? compare y, 0x60
|
||||
#? break-if->=
|
||||
#? return
|
||||
#? }
|
||||
#? {
|
||||
#? compare y, 0x6c
|
||||
#? break-if-<=
|
||||
#? return
|
||||
#? }
|
||||
{
|
||||
compare x, 0x20
|
||||
break-if->=
|
||||
return
|
||||
}
|
||||
#? {
|
||||
#? compare x, 0x6c
|
||||
#? break-if-<=
|
||||
#? return
|
||||
#? }
|
||||
draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, s, 7/fg 0/bg
|
||||
draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, d, fg 0/bg
|
||||
}
|
||||
|
||||
# import a color ascii "pixmap" (each pixel consists of 3 shades of r/g/b from 0 to 255)
|
||||
fn initialize-image-from-ppm _self: (addr image), in: (addr stream byte) {
|
||||
var self/esi: (addr image) <- copy _self
|
||||
|
@ -766,7 +833,6 @@ fn render-ppm-image screen: (addr screen), _img: (addr image), xmin: int, ymin:
|
|||
var zero/eax: int <- copy 0
|
||||
var zero-f/xmm0: float <- convert zero
|
||||
var y/xmm6: float <- copy zero-f
|
||||
set-cursor-position 0/screen, 0x20/x 0x20/y
|
||||
{
|
||||
compare y, height-f
|
||||
break-if-float>=
|
||||
|
|
Loading…
Reference in New Issue