dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2024-11-20 04:18:26 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge "~3-4% faster lossless encoding"

Browse Source
This commit is contained in:
skal 2014-03-04 00:17:52 -08:00 committed by Gerrit Code Review
commit 06d456f685
1 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/dsp/lossless.c
View File

@ -884,16 +884,18 @@ static WEBP_INLINE uint8_t TransformColorBlue(uint8_t green_to_blue,
static WEBP_INLINE int SkipRepeatedPixels(const uint32_t* const argb,
int ix, int xsize) {
const uint32_t v = argb[ix];
if (ix >= xsize + 3) {
if (v == argb[ix - xsize] &&
argb[ix - 1] == argb[ix - xsize - 1] &&
argb[ix - 2] == argb[ix - xsize - 2] &&
argb[ix - 3] == argb[ix - xsize - 3]) {
if (ix >= 3) {
if (v == argb[ix - 3] && v == argb[ix - 2] && v == argb[ix - 1]) {
return 1;
}
return v == argb[ix - 3] && v == argb[ix - 2] && v == argb[ix - 1];
} else if (ix >= 3) {
return v == argb[ix - 3] && v == argb[ix - 2] && v == argb[ix - 1];
if (ix >= xsize + 3) {
if (v == argb[ix - xsize] &&
argb[ix - 3] == argb[ix - xsize - 3] &&
argb[ix - 2] == argb[ix - xsize - 2] &&
argb[ix - 1] == argb[ix - xsize - 1]) {
return 1;
}
}
}
return 0;
}