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simplify upsampler calls: only allow 'bottom' to be NULL

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If 'top' was meant to be NULL, then bottom and top can be
swapped. Logic is simpler.

+ fix compilation in non-FANCY_UPSAMPLING mode

Change-Id: I7c62bbb59454017f072c0945d1ff2d24d89286ff
This commit is contained in:
skal
2013-08-19 12:40:25 -07:00
parent 43a7c8ebee
commit ad6ac32d7c
6 changed files with 48 additions and 29 deletions
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2
src/dec/io.c
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@ -119,7 +119,7 @@ static int EmitFancyRGB(const VP8Io* const io, WebPDecParams* const p) {
if (y == 0) {
// First line is special cased. We mirror the u/v samples at boundary.
upsample(NULL, cur_y, cur_u, cur_v, cur_u, cur_v, NULL, dst, mb_w);
upsample(cur_y, NULL, cur_u, cur_v, cur_u, cur_v, dst, NULL, mb_w);
} else {
// We can finish the left-over line from previous call.
upsample(p->tmp_y, cur_y, top_u, top_v, cur_u, cur_v,