diff options
| author | Brian Paul <[email protected]> | 2012-01-05 11:59:30 -0700 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2012-01-05 12:49:45 -0700 |
| commit | a44d715d2b19dc2f8f48b01144cc38e4e2c5015a (patch) | |
| tree | 2671129e623f7dfb89ea11654a9be1a28e0d1e03 /src | |
| parent | 59be691638200797583bce39a83f641d30d97492 (diff) | |
swrast: use memmove() instead of memcpy() in the SHIFT_ARRAY macro
The src/dst arrays would overlap but dst was less than src so a simple
version of memcpy() would do the right thing. But this isn't guaranteed
when memcpy() is optimized.
Fixes demos/copypix when the dest region was clipped by the left side of
the window.
Reviewed-by: Adam Jackson <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/swrast/s_span.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c index 4124e444e00..8f02eeae79e 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -776,7 +776,7 @@ clip_span( struct gl_context *ctx, SWspan *span ) span->intTex[1] += leftClip * span->intTexStep[1]; #define SHIFT_ARRAY(ARRAY, SHIFT, LEN) \ - memcpy(ARRAY, ARRAY + (SHIFT), (LEN) * sizeof(ARRAY[0])) + memmove(ARRAY, ARRAY + (SHIFT), (LEN) * sizeof(ARRAY[0])) for (i = 0; i < FRAG_ATTRIB_MAX; i++) { if (span->arrayAttribs & (1 << i)) { |