Mercurial > sdl-ios-xcode
annotate strip_fPIC.sh @ 688:c0522010bb6d
Date: Tue, 12 Aug 2003 14:26:19 +0200 (MEST)
From: "Mattias Engdeg?rd"
Subject: bug in SDL_GetRGB/GetRGBA
There's an embarrassing bug in GetRGB/GetRGBA which apparently has been there
for years. It incorrectly converts colours with < 8 bits/channel.
It came to my attention today in #sdl.
What it does now is (for each channel):
rv = (pixel & fmt->Rmask) >> fmt->Rshift;
*r = (rv << fmt->Rloss) + (rv >> (8 - fmt->Rloss));
which is wrong; the last line should be
*r = (rv << fmt->Rloss) + (rv >> (8 - (fmt->Rloss << 1)));
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 12 Aug 2003 15:17:20 +0000 |
parents | 48c34d68918e |
children |
rev | line source |
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0 | 1 #!/bin/sh |
2 # | |
3 # libtool assumes that the compiler can handle the -fPIC flag | |
4 # This isn't always true (for example, nasm can't handle it) | |
5 command="" | |
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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6 while [ $# -gt 0 ]; do |
22
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
7 case "$1" in |
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
8 -?PIC) |
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
9 # Ignore -fPIC and -DPIC options |
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
10 ;; |
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
11 *) |
0 | 12 command="$command $1" |
22
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
13 ;; |
48c34d68918e
Fixed to work on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
14 esac |
0 | 15 shift |
16 done | |
17 echo $command | |
18 exec $command |