diff options
Diffstat (limited to 'img.mu')
| -rw-r--r-- | img.mu | 26 |
1 files changed, 7 insertions, 19 deletions
diff --git a/img.mu b/img.mu index d486d6f2..d258dd72 100644 --- a/img.mu +++ b/img.mu @@ -27,15 +27,16 @@ fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) var img-storage: image var img/esi: (addr image) <- address img-storage load-image img, data-disk - render-image screen, img, 0/x 0/y, 0x400/width 0x400/height + render-image screen, img, 0/x, 0xd0/y, 0x12c/width=300, 0xc8/height=200 + render-pgm-image screen, img, 0x140/x, 0/y, 0x12c/width=300, 0xc8/height=200 } fn load-image self: (addr image), data-disk: (addr disk) { # data-disk -> stream var s-storage: (stream byte 0x200000) # 512* 0x1000 sectors var s/ebx: (addr stream byte) <- address s-storage - draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, "loading sectors from data disk", 3/fg, 0/bg - move-cursor-to-left-margin-of-next-line 0/screen +#? draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, "loading sectors from data disk", 3/fg, 0/bg +#? move-cursor-to-left-margin-of-next-line 0/screen load-sectors data-disk, 0/lba, 0x100/sectors, s load-sectors data-disk, 0x100/lba, 0x100/sectors, s load-sectors data-disk, 0x200/lba, 0x100/sectors, s @@ -52,8 +53,8 @@ fn load-image self: (addr image), data-disk: (addr disk) { load-sectors data-disk, 0xd00/lba, 0x100/sectors, s load-sectors data-disk, 0xe00/lba, 0x100/sectors, s load-sectors data-disk, 0xf00/lba, 0x100/sectors, s - draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, "parsing", 3/fg, 0/bg - move-cursor-to-left-margin-of-next-line 0/screen +#? draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, "parsing", 3/fg, 0/bg +#? move-cursor-to-left-margin-of-next-line 0/screen initialize-image self, s } @@ -452,12 +453,6 @@ fn dither-pgm-unordered _src: (addr image), _dest: (addr image) { var dest-height-a/ecx: (addr int) <- get dest, height copy-to *dest-height-a, tmp } - # compute scaling factor 255/max - var target-scale/eax: int <- copy 0xff - var scale-f/xmm7: float <- convert target-scale - var src-max-a/eax: (addr int) <- get src, max - var tmp-f/xmm0: float <- convert *src-max-a - scale-f <- divide tmp-f # transform 'data' var capacity/ebx: int <- copy src-width capacity <- multiply src-height @@ -489,13 +484,6 @@ fn dither-pgm-unordered _src: (addr image), _dest: (addr image) { #? var foo/eax: int <- copy initial-color #? psd "r", foo, 7/fg, x, y #? } - # . scale to 255 levels - var initial-color-int/eax: int <- copy initial-color - var initial-color-f/xmm0: float <- convert initial-color-int - initial-color-f <- multiply scale-f - initial-color-int <- convert initial-color-f -#? var initial-color/eax: byte <- copy-byte initial-color-int - # var error/esi: int <- _read-dithering-error errors, x, y, src-width #? { #? var foo/eax: int <- copy error @@ -516,7 +504,7 @@ fn dither-pgm-unordered _src: (addr image), _dest: (addr image) { #? } # error += (initial-color << 16) { - var tmp/eax: int <- copy initial-color-int + var tmp/eax: int <- copy initial-color tmp <- shift-left 0x10 # we have 32 bits; we'll use 16 bits for the fraction and leave 8 for unanticipated overflow error <- add tmp } |