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nimPNG
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Merge pull request #12 from yglukhov/fixes 

Fixed incompatibility with newer nim
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andri lim 2017-10-31 08:39:34 +07:00 committed by GitHub
parent a961150d81 8557703abf
commit 67d74b067b
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1 changed files with 13 additions and 13 deletions
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nimPNG.nim
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@ -226,8 +226,8 @@ proc crc32(crc: uint32, buf: string): uint32 =
var crcu32 = not crc
for b in buf:
crcu32 = (crcu32 shr 4) xor kcrc32[(crcu32 and 0xF) xor (ord(b) and 0xF)]
crcu32 = (crcu32 shr 4) xor kcrc32[(crcu32 and 0xF) xor (ord(b) shr 4)]
crcu32 = (crcu32 shr 4) xor kcrc32[(crcu32 and 0xF) xor (uint32(b) and 0xF'u32)]
crcu32 = (crcu32 shr 4) xor kcrc32[(crcu32 and 0xF) xor (uint32(b) shr 4'u32)]
result = not crcu32
@ -1493,36 +1493,36 @@ proc RGBA8FromRGBA16(p: var RGBA8, input: DataBuf, px: int, mode: PNGColorMode)
proc RGBA16FromGrey(p: var RGBA16, input: DataBuf, px: int, mode: PNGColorMode) =
let i = px * 2
let val = 256 * ord(input[i]) + ord(input[i + 1])
let val = 256'u16 * ord(input[i]) + ord(input[i + 1])
p.r = val
p.g = val
p.b = val
if mode.keyDefined and (val == mode.keyR): p.a = 0
if mode.keyDefined and (val.int == mode.keyR): p.a = 0
else: p.a = 65535
proc RGBA16FromRGB(p: var RGBA16, input: DataBuf, px: int, mode: PNGColorMode) =
let i = px * 6
p.r = 256 * ord(input[i]) + ord(input[i+1])
p.g = 256 * ord(input[i+2]) + ord(input[i+3])
p.b = 256 * ord(input[i+4]) + ord(input[i+5])
p.r = 256'u16 * ord(input[i]) + ord(input[i+1])
p.g = 256'u16 * ord(input[i+2]) + ord(input[i+3])
p.b = 256'u16 * ord(input[i+4]) + ord(input[i+5])
if mode.keyDefined and (int(p.r) == mode.keyR) and
(int(p.g) == mode.keyG) and (int(p.b) == mode.keyB): p.a = 0
else: p.a = 65535
proc RGBA16FromGreyAlpha(p: var RGBA16, input: DataBuf, px: int, mode: PNGColorMode) =
let i = px * 4
let val = 256 * ord(input[i]) + ord(input[i + 1])
let val = 256'u16 * ord(input[i]) + ord(input[i + 1])
p.r = val
p.g = val
p.b = val
p.a = 256 * ord(input[i + 2]) + ord(input[i + 3])
p.a = 256'u16 * ord(input[i + 2]) + ord(input[i + 3])
proc RGBA16FromRGBA(p: var RGBA16, input: DataBuf, px: int, mode: PNGColorMode) =
let i = px * 8
p.r = 256 * ord(input[i]) + ord(input[i+1])
p.g = 256 * ord(input[i+2]) + ord(input[i+3])
p.b = 256 * ord(input[i+4]) + ord(input[i+5])
p.a = 256 * ord(input[i+6]) + ord(input[i+7])
p.r = 256'u16 * ord(input[i]) + ord(input[i+1])
p.g = 256'u16 * ord(input[i+2]) + ord(input[i+3])
p.b = 256'u16 * ord(input[i+4]) + ord(input[i+5])
p.a = 256'u16 * ord(input[i+6]) + ord(input[i+7])
proc RGBA8ToGrey8(p: RGBA8, output: var DataBuf, px: int, mode: PNGColorMode, ct: ColorTree8) =
output[px] = p.r