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bmp: update comment about decoding 32 bpp images

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Change-Id: I90f6d36d5257c31dc2e41943e5a1eaa7755da6d2
Reviewed-on: https://go-review.googlesource.com/c/144317
Reviewed-by: David Symonds <dsymonds@golang.org>
Run-TryBot: David Symonds <dsymonds@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Nigel Tao 2018-10-24 10:00:46 +11:00
parent a9455cf03d
commit 9b1e201e7c
1 changed files with 2 additions and 1 deletions
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3
bmp/reader.go
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@ -165,7 +165,8 @@ func decodeConfig(r io.Reader) (config image.Config, bitsPerPixel int, topDown b
if width < 0 || height < 0 {
return image.Config{}, 0, false, ErrUnsupported
}
// We only support 1 plane, 8 or 24 bits per pixel and no compression.
// We only support 1 plane and 8, 24 or 32 bits per pixel and no
// compression.
planes, bpp, compression := readUint16(b[26:28]), readUint16(b[28:30]), readUint32(b[30:34])
// if compression is set to BITFIELDS, but the bitmask is set to the default bitmask
// that would be used if compression was set to 0, we can continue as if compression was 0