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Pass stride parameter to WebPDequantizeLevels()

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and also pass 'VP8Io* io' extra param to VP8DecompressAlphaRows()

This is somehow in preparation for some memory optimizations in
the 'cropping' case. For now, only the easy crop_bottom case is
optimized.

Change-Id: Ib54531ba057bf62b98422dbb6c181dda626c72c2
This commit is contained in:
Pascal Massimino
2016-03-18 15:36:58 +01:00
parent e88c4ca013
commit 64eed38779
5 changed files with 23 additions and 14 deletions
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2
src/dec/frame.c
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@ -462,7 +462,7 @@ static int FinishRow(VP8Decoder* const dec, VP8Io* const io) {
if (dec->alpha_data_ != NULL && y_start < y_end) {
// TODO(skal): testing presence of alpha with dec->alpha_data_ is not a
// good idea.
io->a = VP8DecompressAlphaRows(dec, y_start, y_end - y_start);
io->a = VP8DecompressAlphaRows(dec, io, y_start, y_end - y_start);
if (io->a == NULL) {
return VP8SetError(dec, VP8_STATUS_BITSTREAM_ERROR,
"Could not decode alpha data.");