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rescaler: simplify ImportRow logic

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incorporates the loop over 'channel' and removes one parameter

Change-Id: I4e3b33c111ca825fe96461583420413b17326409
This commit is contained in:
Pascal Massimino
2015-09-19 09:59:32 -07:00
parent 5ff0079ece
commit 9ba1894b9b
5 changed files with 250 additions and 239 deletions
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6
src/utils/rescaler.c
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@ -102,16 +102,14 @@ int WebPRescalerImport(WebPRescaler* const wrk, int num_lines,
const uint8_t* src, int src_stride) {
int total_imported = 0;
while (total_imported < num_lines && !WebPRescalerHasPendingOutput(wrk)) {
int x, channel;
if (wrk->y_expand) {
rescaler_t* const tmp = wrk->irow;
wrk->irow = wrk->frow;
wrk->frow = tmp;
}
for (channel = 0; channel < wrk->num_channels; ++channel) {
WebPRescalerImportRow(wrk, src, channel);
}
WebPRescalerImportRow(wrk, src);
if (!wrk->y_expand) { // Accumulate the contribution of the new row.
int x;
for (x = 0; x < wrk->num_channels * wrk->dst_width; ++x) {
wrk->irow[x] += wrk->frow[x];
}