1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
import types/color
type
Bitmap* = ref object of RootObj
px*: seq[RGBAColorBE]
width*: uint64
height*: uint64
ImageBitmap* = ref object of Bitmap
NetworkBitmap* = ref object of Bitmap
cacheId*: int
imageId*: int
contentType*: string
proc newBitmap*(width, height: uint64): ImageBitmap =
return ImageBitmap(
px: newSeq[RGBAColorBE](width * height),
width: width,
height: height
)
proc setpx*(bmp: Bitmap; x, y: uint64; color: RGBAColorBE) {.inline.} =
bmp.px[bmp.width * y + x] = color
proc setpx*(bmp: Bitmap; x, y: uint64; color: ARGBColor) {.inline.} =
bmp.px[bmp.width * y + x] = rgba_be(color.r, color.g, color.b, color.a)
proc getpx*(bmp: Bitmap; x, y: uint64): RGBAColorBE {.inline.} =
return bmp.px[bmp.width * y + x]
proc setpxb*(bmp: Bitmap; x, y: uint64; c: RGBAColorBE) {.inline.} =
if c.a == 255:
bmp.setpx(x, y, c)
else:
bmp.setpx(x, y, bmp.getpx(x, y).blend(c))
proc setpxb*(bmp: Bitmap; x, y: uint64; c: ARGBColor) {.inline.} =
bmp.setpxb(x, y, rgba_be(c.r, c.g, c.b, c.a))
|