Non-Mac PICT Parsing?
06-Mar-91 08:21:16
Sb: #41100-Non-Mac PICT Parsing?
Fm: Ed Ludwig 71210,1545
To: Syndesis 76004,1763
Dear Mr. Syndesis Corp,
Opcode 0x009a and 0x009b are the new opcodes DirectBits and DirectBitsRgn
(respectively) that were added to support 32-Bit direct rgb pixel maps.
These are described in the documentation for 32-Bit QuickDraw. I guess it
was intended by Apple that these opcodes would be self-terminating
(0x000000ff) because the information (32-Bit direct rgb pixel maps) would
be pretty much useless to anyone not expecting it.
Ed Ludwig, Abbott Systems
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1: Where did you ge tt this information? It sounds like thn order to intpererpret PICT
2: an d partcicularly PICT2 on a non-Mac, I'm going to need to know
abou 3: t some of these 'reserved' opcodes like $009A. WhI'm
curio 4: us – if PICT handling is done somewhat transparently
5: on inside a Mac program, then how are y'all able to answer
m 6: y questions about the details of PICTs on disk?
7: /post
Message # 41247 posted