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Use 32-bits for pixman_bits_t, even on 64-bit platforms. This should fix bug #2335 as well as rendering problems seen on 64-bit platforms.

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Carl Worth 2005-01-26 09:10:15 +00:00
parent dfee909d51
commit 6dce601fd3
2 changed files with 16 additions and 10 deletions
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6
pixman/ChangeLog
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@ -1,3 +1,9 @@
2005-01-26 Carl Worth <cworth@cworth.org>
* src/pixman.h: Use 32-bits for pixman_bits_t, even on 64-bit
platforms. This should fix bug #2335 as well as rendering problems
seen on 64-bit platforms.
2005-01-21 Carl Worth <cworth@cworth.org>
* NEWS: Add notes for snapshot 0.1.3.

20
pixman/src/pixman.h
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@ -54,7 +54,7 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
******************************************************************/
/* $Id: pixman.h,v 1.15 2004-09-12 13:06:50 davidr Exp $ */
/* $Id: pixman.h,v 1.16 2005-01-26 17:10:15 cworth Exp $ */
/* libic.h */
@ -261,18 +261,18 @@ pixman_image_create (pixman_format_t *format,
* by this software; it must be log2(sizeof (pixman_bits_t) * 8)
*/
/* We use a 32-bit size on all platforms, (even those with native 64
* bit types). This is consistent with the code currently in the X
* server, so it goes through much more well-tested code paths, (we
* saw rendering bugs when we tried IC_SHIFT==6 and uint64_t for
* pixman_bits_t on 64-bit platofrms). In addition, Keith says that
* his testing indicates that using 32-bits everywhere is a
* performance win in any case, (presumably due to 32-bit datapaths
* between the processor and the video card).
*/
#ifndef IC_SHIFT
# if defined(__alpha__) || defined(__alpha) || \
defined(ia64) || defined(__ia64__) || \
defined(__sparc64__) || \
defined(__s390x__) || \
defined(x86_64) || defined (__x86_64__)
#define IC_SHIFT 6
typedef uint64_t pixman_bits_t;
# else
#define IC_SHIFT 5
typedef uint32_t pixman_bits_t;
# endif
#endif
pixman_image_t *