dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2025-07-13 14:34:33 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

treat FILTER_NONE as a regular Unfilter[] call

Browse Source 
Removes the hard-coded memcpy() in alpha-decoding.

Change-Id: I1dfd98db206893d7715a79d05a1bd9272690471a
This commit is contained in:
skal
2023-06-07 15:38:07 +02:00
parent f6499943c4
commit 6b02f66015
2 changed files with 14 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/dsp/filters.c
View File

@ -189,6 +189,12 @@ static void GradientFilter_C(const uint8_t* data, int width, int height,
//------------------------------------------------------------------------------
static void NoneUnfilter_C(const uint8_t* prev, const uint8_t* in,
uint8_t* out, int width) {
(void)prev;
if (out != in) memcpy(out, in, width * sizeof(*out));
}
static void HorizontalUnfilter_C(const uint8_t* prev, const uint8_t* in,
uint8_t* out, int width) {
uint8_t pred = (prev == NULL) ? 0 : prev[0];
@ -240,7 +246,7 @@ extern void VP8FiltersInitNEON(void);
extern void VP8FiltersInitSSE2(void);
WEBP_DSP_INIT_FUNC(VP8FiltersInit) {
WebPUnfilters[WEBP_FILTER_NONE] = NULL;
WebPUnfilters[WEBP_FILTER_NONE] = NoneUnfilter_C;
#if !WEBP_NEON_OMIT_C_CODE
WebPUnfilters[WEBP_FILTER_HORIZONTAL] = HorizontalUnfilter_C;
WebPUnfilters[WEBP_FILTER_VERTICAL] = VerticalUnfilter_C;
@ -279,6 +285,7 @@ WEBP_DSP_INIT_FUNC(VP8FiltersInit) {
}
#endif
assert(WebPUnfilters[WEBP_FILTER_NONE] != NULL);
assert(WebPUnfilters[WEBP_FILTER_HORIZONTAL] != NULL);
assert(WebPUnfilters[WEBP_FILTER_VERTICAL] != NULL);
assert(WebPUnfilters[WEBP_FILTER_GRADIENT] != NULL);