vpx_dsp/loopfilter.c: fix int sanitizer warnings

implicit conversion from type 'int' of value -139 (32-bit, signed)
to type 'int8_t' (aka 'signed char') changed the value to 117 (8-bit, signed)

BUG=webm:1615

Change-Id: Ic64959759f4a188087aa24bedbae5f9fa60674ad

diff --git a/vpx_dsp/loopfilter.c b/vpx_dsp/loopfilter.c
index 47f30c96aff080b3a3e8977c6aa89eedb109f3ff..995602831722ff8674c21e25754a664f97354d65 100644 (file)
--- a/vpx_dsp/loopfilter.c
+++ b/vpx_dsp/loopfilter.c
@@ -81,11 +81,11 @@ static INLINE void filter4(int8_t mask, uint8_t thresh, uint8_t *op1,
                            uint8_t *op0, uint8_t *oq0, uint8_t *oq1) {
   int8_t filter1, filter2;
 
-  const int8_t ps1 = (int8_t)*op1 ^ 0x80;
-  const int8_t ps0 = (int8_t)*op0 ^ 0x80;
-  const int8_t qs0 = (int8_t)*oq0 ^ 0x80;
-  const int8_t qs1 = (int8_t)*oq1 ^ 0x80;
-  const uint8_t hev = hev_mask(thresh, *op1, *op0, *oq0, *oq1);
+  const int8_t ps1 = (int8_t)(*op1 ^ 0x80);
+  const int8_t ps0 = (int8_t)(*op0 ^ 0x80);
+  const int8_t qs0 = (int8_t)(*oq0 ^ 0x80);
+  const int8_t qs1 = (int8_t)(*oq1 ^ 0x80);
+  const int8_t hev = hev_mask(thresh, *op1, *op0, *oq0, *oq1);
 
   // add outer taps if we have high edge variance
   int8_t filter = signed_char_clamp(ps1 - qs1) & hev;
@@ -99,14 +99,14 @@ static INLINE void filter4(int8_t mask, uint8_t thresh, uint8_t *op1,
   filter1 = signed_char_clamp(filter + 4) >> 3;
   filter2 = signed_char_clamp(filter + 3) >> 3;
 
-  *oq0 = signed_char_clamp(qs0 - filter1) ^ 0x80;
-  *op0 = signed_char_clamp(ps0 + filter2) ^ 0x80;
+  *oq0 = (uint8_t)(signed_char_clamp(qs0 - filter1) ^ 0x80);
+  *op0 = (uint8_t)(signed_char_clamp(ps0 + filter2) ^ 0x80);
 
   // outer tap adjustments
   filter = ROUND_POWER_OF_TWO(filter1, 1) & ~hev;
 
-  *oq1 = signed_char_clamp(qs1 - filter) ^ 0x80;
-  *op1 = signed_char_clamp(ps1 + filter) ^ 0x80;
+  *oq1 = (uint8_t)(signed_char_clamp(qs1 - filter) ^ 0x80);
+  *op1 = (uint8_t)(signed_char_clamp(ps1 + filter) ^ 0x80);
 }
 
 void vpx_lpf_horizontal_4_c(uint8_t *s, int pitch, const uint8_t *blimit,
@@ -423,7 +423,7 @@ static INLINE void highbd_filter4(int8_t mask, uint8_t thresh, uint16_t *op1,
   const int16_t ps0 = (int16_t)*op0 - (0x80 << shift);
   const int16_t qs0 = (int16_t)*oq0 - (0x80 << shift);
   const int16_t qs1 = (int16_t)*oq1 - (0x80 << shift);
-  const uint16_t hev = highbd_hev_mask(thresh, *op1, *op0, *oq0, *oq1, bd);
+  const int16_t hev = highbd_hev_mask(thresh, *op1, *op0, *oq0, *oq1, bd);
 
   // Add outer taps if we have high edge variance.
   int16_t filter = signed_char_clamp_high(ps1 - qs1, bd) & hev;