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[Compass Core] Fix a ruby 1.9 bug in the image_size helper functions for jpeg images.

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This commit is contained in:
Chris Eppstein 2010-03-06 15:47:54 -08:00
parent f7b729fa60
commit 7f008f4ea0
1 changed files with 6 additions and 6 deletions
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12
lib/compass/sass_extensions/functions/image_size.rb
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@ -68,19 +68,19 @@ private
private private
def examine(io) def examine(io)
raise 'malformed JPEG' unless io.getc == 0xFF && io.getc == 0xD8 # SOI
class << io class << io
def readint; (readchar << 8) + readchar; end def readint; (readbyte << 8) + readbyte; end
def readframe; read(readint - 2); end def readframe; read(readint - 2); end
def readsof; [readint, readchar, readint, readint, readchar]; end def readsof; [readint, readbyte, readint, readint, readbyte]; end
def next def next
c = readchar while c != 0xFF c = readbyte while c != 0xFF
c = readchar while c == 0xFF c = readbyte while c == 0xFF
c c
end end
end end
raise 'malformed JPEG!' unless io.readbyte == 0xFF && io.readbyte == 0xD8 # SOI
while marker = io.next while marker = io.next
case marker case marker
when 0xC0..0xC3, 0xC5..0xC7, 0xC9..0xCB, 0xCD..0xCF # SOF markers when 0xC0..0xC3, 0xC5..0xC7, 0xC9..0xCB, 0xCD..0xCF # SOF markers