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Remove ubsan errors.

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'upper' could be NULL and it would be increased.
But that is for predictor zero that does not use 'upper'.

Change-Id: Icd4ae6792cc55ea021b4f828c3dbdb5f03e120d8
This commit is contained in:
Vincent Rabaud
2019-11-06 10:38:42 +01:00
parent 78881b769c
commit bb7bc40b6d
2 changed files with 9 additions and 2 deletions
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2
src/dsp/lossless_common.h
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@ -177,6 +177,7 @@ uint32_t VP8LSubPixels(uint32_t a, uint32_t b) {
static void PREDICTOR_ADD(const uint32_t* in, const uint32_t* upper, \
int num_pixels, uint32_t* out) { \
int x; \
assert(upper != NULL); \
for (x = 0; x < num_pixels; ++x) { \
const uint32_t pred = (PREDICTOR)(out[x - 1], upper + x); \
out[x] = VP8LAddPixels(in[x], pred); \
@ -189,6 +190,7 @@ static void PREDICTOR_ADD(const uint32_t* in, const uint32_t* upper, \
static void PREDICTOR_SUB(const uint32_t* in, const uint32_t* upper, \
int num_pixels, uint32_t* out) { \
int x; \
assert(upper != NULL); \
for (x = 0; x < num_pixels; ++x) { \
const uint32_t pred = (PREDICTOR)(in[x - 1], upper + x); \
out[x] = VP8LSubPixels(in[x], pred); \