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handle LSB_FIRST in _mesa_pack_bitmap by the way used in

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_mesa_unpack_bitmap
This commit is contained in:
Xiang, Haihao
2007-07-30 16:30:32 +08:00
parent 775ebb696d
commit 501b5305b9
1 changed files with 8 additions and 8 deletions
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src/mesa/main/image.c
+8 -8
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@@ -850,7 +850,7 @@ _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
return NULL;
}
if (packing->SkipPixels == 0) {
if ((packing->SkipPixels & 7) == 0) {
_mesa_memcpy( dst, src, width_in_bytes );
if (packing->LsbFirst) {
flip_bytes( dst, width_in_bytes );
@@ -942,7 +942,7 @@ _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
if (!dst)
return;
if (packing->SkipPixels == 0) {
if ((packing->SkipPixels & 7) == 0) {
_mesa_memcpy( dst, src, width_in_bytes );
if (packing->LsbFirst) {
flip_bytes( dst, width_in_bytes );
@@ -961,20 +961,20 @@ _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
if (*s & srcMask) {
*d |= dstMask;
}
if (srcMask == 128) {
srcMask = 1;
if (srcMask == 1) {
srcMask = 128;
s++;
}
else {
srcMask = srcMask << 1;
srcMask = srcMask >> 1;
}
if (dstMask == 1) {
dstMask = 128;
if (dstMask == 128) {
dstMask = 1;
d++;
*d = 0;
}
else {
dstMask = dstMask >> 1;
dstMask = dstMask << 1;
}
}
}