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author | Brian <brian.paul@tungstengraphics.com> | 2007-11-26 09:35:39 -0700 |
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committer | Brian <brian.paul@tungstengraphics.com> | 2007-11-27 10:31:55 -0700 |
commit | 74cd0b459f4eafd4b4bc63532b1c3cb6f26153ed (patch) | |
tree | 9d0282dc0c86e21f65381d414ce8fb3aacc5c611 | |
parent | 46e03d584a18b89fef956fed3d52e15775846250 (diff) | |
download | external_mesa3d-74cd0b459f4eafd4b4bc63532b1c3cb6f26153ed.zip external_mesa3d-74cd0b459f4eafd4b4bc63532b1c3cb6f26153ed.tar.gz external_mesa3d-74cd0b459f4eafd4b4bc63532b1c3cb6f26153ed.tar.bz2 |
improve 24-bit Z to 32-bit Z conversion
-rw-r--r-- | src/mesa/swrast/s_readpix.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c index fe9a70f..916ddc1 100644 --- a/src/mesa/swrast/s_readpix.c +++ b/src/mesa/swrast/s_readpix.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5.3 + * Version: 7.0.3 * * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. * @@ -129,7 +129,8 @@ read_depth_pixels( GLcontext *ctx, rb->GetRow(ctx, rb, width, x, y, dest); /* convert range from 24-bit to 32-bit */ for (k = 0; k < width; k++) { - dest[k] = (dest[k] << 8) | (dest[k] >> 24); + /* Note: put MSByte of 24-bit value into LSByte */ + dest[k] = (dest[k] << 8) | ((dest[k] >> 16) & 0xff); } } } |