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open Util
module E = struct
type t = int
let bytes_per_pixel = 1
let get = (@%)
let set str pos t =
str << pos & char_of_int t
let make t =
let str = Bytes.create bytes_per_pixel in
set str 0 t;
str
end
module RI = Genimage.MakeRawImage(E)
type rawimage = RI.t
type elt = int
type t = {
width : int;
height : int;
rawimage : RI.t;
mutable infos : Info.info list;
mutable colormap : Color.rgb Color.map;
mutable transparent : int;
}
module C = struct
open Color
type rawimage = RI.t
type container = t
type mapelt = Color.rgb
let rawimage x = x.rawimage
let create_default width height rawimage =
{ width= width;
height= height;
rawimage = rawimage;
colormap = { map= [||]; max= 255 };
transparent = (-1);
infos= [] }
let create_duplicate src width height rawimage =
{ width= width;
height= height;
rawimage = rawimage;
colormap = src.colormap;
transparent = src.transparent;
infos= src.infos }
let colormap t = t.colormap
end
module IMAGE = Genimage.MakeIndexed(RI)(C)
let create_with width height infos colormap transparent data =
{ width= width;
height= height;
rawimage= RI.create_with width height data;
colormap = colormap;
transparent = transparent;
infos= infos; }
let create_with_scanlines width height infos colormap transparent data =
{ width= width;
height= height;
rawimage= RI.create_with_scanlines width height data;
colormap = colormap;
transparent = transparent;
infos= infos; }
let rawimage = C.rawimage
let create = IMAGE.create
let make = IMAGE.make
let dump = IMAGE.dump
let unsafe_access = IMAGE.unsafe_access
let get_strip = IMAGE.get_strip
let set_strip = IMAGE.set_strip
let get_scanline = IMAGE.get_scanline
let set_scanline = IMAGE.set_scanline
let unsafe_get = IMAGE.unsafe_get
let unsafe_set = IMAGE.unsafe_set
let get = IMAGE.get
let set = IMAGE.set
let unsafe_get_color = IMAGE.unsafe_get_color
let get_color = IMAGE.get_color
let destroy = IMAGE.destroy
let copy = IMAGE.copy
let sub = IMAGE.sub
let blit = IMAGE.blit
let map = IMAGE.map
let blocks = IMAGE.blocks
let dump_block = IMAGE.dump_block
let unsafe_get_rgb = unsafe_get_color
let get_rgb = get_color
open Color
let to_rgb24 ?failsafe t =
let rgb24 = Rgb24.create t.width t.height in
let cmapsize = Array.length t.colormap.map in
begin match failsafe with
| Some failsafecolor ->
for y = 0 to t.height - 1 do
for x = 0 to t.width - 1 do
let idx = unsafe_get t x y in
let rgb =
if idx < 0 || idx >= cmapsize then failsafecolor
else t.colormap.map.(idx)
in
Rgb24.unsafe_set rgb24 x y rgb
done
done
| None ->
for y = 0 to t.height - 1 do
for x = 0 to t.width - 1 do
Rgb24.unsafe_set rgb24 x y (unsafe_get_color t x y)
done
done
end;
rgb24
let to_rgba32 ?failsafe t =
let rgba32 = Rgba32.create t.width t.height in
let cmapsize = Array.length t.colormap.map in
begin match failsafe with
| Some failsafecolor ->
for y = 0 to t.height - 1 do
for x = 0 to t.width - 1 do
let rgba =
let index = unsafe_get t x y in
if index < 0 || index >= cmapsize then failsafecolor
else
{ color= t.colormap.map.(index);
alpha= if index = t.transparent then 0 else 255 }
in
Rgba32.unsafe_set rgba32 x y rgba
done
done
| None ->
for y = 0 to t.height - 1 do
for x = 0 to t.width - 1 do
let index = unsafe_get t x y in
Rgba32.unsafe_set rgba32 x y
{ color= t.colormap.map.(index);
alpha= if index = t.transparent then 0 else 255 }
done
done
end;
rgba32