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50 lines
1.6 KiB
50 lines
1.6 KiB
18 years ago
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# --- T2-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# T2 SDE: package/.../fbgrab/565-fixup.patch
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# Copyright (C) 2004 - 2006 The T2 SDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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# This patch file is dual-licensed. It is available under the license the
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# patched project is licensed under, as long as it is an OpenSource license
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# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
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# of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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# --- T2-COPYRIGHT-NOTE-END ---
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Fixed fbgrab for big-endian systems, including a code cleanup on the way.
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- Rene Rebe
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--- fbgrab-1.0/fbgrab.c 2002-04-15 22:22:54.000000000 +0200
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+++ fbgrab-1.0-fixed/fbgrab.c 2004-09-05 16:12:42.874276472 +0200
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@@ -166,15 +166,17 @@
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for (i=0; i < (unsigned int) height*width*2; i+=2)
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{
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- /* BLUE = 0 */
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- outbuffer[(i<<1)+0] = (inbuffer[i] & 0x1f) << 3;
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- /* GREEN = 1 */
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- outbuffer[(i<<1)+1] = (((inbuffer[i+1] & 0x7) << 3) |
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- (inbuffer[i] & 0xE0) >> 5) << 2;
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- /* RED = 2 */
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- outbuffer[(i<<1)+2] = (inbuffer[i+1] & 0xF8);
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- /* ALPHA = 3 */
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- outbuffer[(i<<1)+3] = '\0';
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+ int16_t v =
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+#ifdef __BIG_ENDIAN__
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+ (inbuffer[i] << 8) + inbuffer[i+1];
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+#else
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+ (inbuffer[i+1] << 8) + inbuffer[i];
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+#endif
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+
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+ outbuffer[(i<<1)+0] = (v << 3) & 0xf8; /* B */
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+ outbuffer[(i<<1)+1] = (v >> 3) & 0xfc; /* G */
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+ outbuffer[(i<<1)+2] = (v >> 8) & 0xf8; /* R */
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+ outbuffer[(i<<1)+3] = 0; /* A */
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}
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}
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