dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2025-07-16 13:59:51 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

change VP8LPredictorFunc signature to avoid reading 'left'

Browse Source 
... when it's not available. Even if the value was discarded and
never used, some msan config were complaining about reading it
and passing it around.

Change-Id: Iab8d24676c5bb58e607a829121e36c2862da397c
This commit is contained in:
Pascal Massimino
2021-11-05 16:20:31 +01:00
committed by Pascal Massimino
parent 6b1d18c362
commit 8ea81561d2
8 changed files with 127 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
src/dsp/lossless.c
View File

@ -107,63 +107,77 @@ static WEBP_INLINE uint32_t Select(uint32_t a, uint32_t b, uint32_t c) {
//------------------------------------------------------------------------------
// Predictors
uint32_t VP8LPredictor0_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor0_C(const uint32_t* const left,
const uint32_t* const top) {
(void)top;
(void)left;
return ARGB_BLACK;
}
uint32_t VP8LPredictor1_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor1_C(const uint32_t* const left,
const uint32_t* const top) {
(void)top;
return left;
return *left;
}
uint32_t VP8LPredictor2_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor2_C(const uint32_t* const left,
const uint32_t* const top) {
(void)left;
return top[0];
}
uint32_t VP8LPredictor3_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor3_C(const uint32_t* const left,
const uint32_t* const top) {
(void)left;
return top[1];
}
uint32_t VP8LPredictor4_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor4_C(const uint32_t* const left,
const uint32_t* const top) {
(void)left;
return top[-1];
}
uint32_t VP8LPredictor5_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = Average3(left, top[0], top[1]);
uint32_t VP8LPredictor5_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Average3(*left, top[0], top[1]);
return pred;
}
uint32_t VP8LPredictor6_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = Average2(left, top[-1]);
uint32_t VP8LPredictor6_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Average2(*left, top[-1]);
return pred;
}
uint32_t VP8LPredictor7_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = Average2(left, top[0]);
uint32_t VP8LPredictor7_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Average2(*left, top[0]);
return pred;
}
uint32_t VP8LPredictor8_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor8_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Average2(top[-1], top[0]);
(void)left;
return pred;
}
uint32_t VP8LPredictor9_C(uint32_t left, const uint32_t* const top) {
uint32_t VP8LPredictor9_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Average2(top[0], top[1]);
(void)left;
return pred;
}
uint32_t VP8LPredictor10_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = Average4(left, top[-1], top[0], top[1]);
uint32_t VP8LPredictor10_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Average4(*left, top[-1], top[0], top[1]);
return pred;
}
uint32_t VP8LPredictor11_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = Select(top[0], left, top[-1]);
uint32_t VP8LPredictor11_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = Select(top[0], *left, top[-1]);
return pred;
}
uint32_t VP8LPredictor12_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = ClampedAddSubtractFull(left, top[0], top[-1]);
uint32_t VP8LPredictor12_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = ClampedAddSubtractFull(*left, top[0], top[-1]);
return pred;
}
uint32_t VP8LPredictor13_C(uint32_t left, const uint32_t* const top) {
const uint32_t pred = ClampedAddSubtractHalf(left, top[0], top[-1]);
uint32_t VP8LPredictor13_C(const uint32_t* const left,
const uint32_t* const top) {
const uint32_t pred = ClampedAddSubtractHalf(*left, top[0], top[-1]);
return pred;
}