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Fix ubsan warnings: vp9/encoder/vp9_pickmode.c

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This commit fixes a number of integer out of range issue in HBD build.

BUG=webm:1219

Change-Id: Ib4192dc74a500e1b86c37a399114c7f6d4ed5185
This commit is contained in:
Yaowu Xu
2016-06-20 10:42:56 -07:00
parent 913081ab02
commit b9ec759bc2
1 changed files with 18 additions and 3 deletions
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21
vp9/encoder/vp9_pickmode.c
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@@ -727,6 +727,13 @@ static void model_rd_for_sb_uv(VP9_COMP *cpi, BLOCK_SIZE plane_bsize,
int rate;
int64_t dist;
int i;
#if CONFIG_VP9_HIGHBITDEPTH
uint64_t tot_var = *var_y;
uint64_t tot_sse = *sse_y;
#else
uint32_t tot_var = *var_y;
uint32_t tot_sse = *sse_y;
#endif
this_rdc->rate = 0;
this_rdc->dist = 0;
@@ -738,14 +745,14 @@ static void model_rd_for_sb_uv(VP9_COMP *cpi, BLOCK_SIZE plane_bsize,
const uint32_t ac_quant = pd->dequant[1];
const BLOCK_SIZE bs = plane_bsize;
unsigned int var;
if (!x->color_sensitivity[i - 1])
continue;
var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride,
pd->dst.buf, pd->dst.stride, &sse);
*var_y += var;
*sse_y += sse;
assert(sse >= var);
tot_var += var;
tot_sse += sse;
#if CONFIG_VP9_HIGHBITDEPTH
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
@@ -779,6 +786,14 @@ static void model_rd_for_sb_uv(VP9_COMP *cpi, BLOCK_SIZE plane_bsize,
this_rdc->rate += rate;
this_rdc->dist += dist << 4;
}
#if CONFIG_VP9_HIGHBITDEPTH
*var_y = tot_var > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_var;
*sse_y = tot_sse > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_sse;
#else
*var_y = tot_var;
*sse_y = tot_sse;
#endif
}
static int get_pred_buffer(PRED_BUFFER *p, int len) {