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dsp/lossless_enc.c: clear int sanitizer warnings

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add explicit casts in calls to ColorTransformDelta()

clears warnings of the form:
implicit conversion from type 'uint8_t' (aka 'unsigned char') of value
254 (8-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the
value to -2 (8-bit, signed)

Bug: b/229626362
Change-Id: I40618209509508f56d8053f9daa29cf2e6999766
This commit is contained in:
James Zern 2022-08-07 10:07:12 -07:00
parent 5037220e55
commit ad7d1753c5
1 changed files with 6 additions and 6 deletions
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12
src/dsp/lossless_enc.c
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@ -547,10 +547,10 @@ void VP8LTransformColor_C(const VP8LMultipliers* const m, uint32_t* data,
const int8_t red = U32ToS8(argb >> 16); const int8_t red = U32ToS8(argb >> 16);
int new_red = red & 0xff; int new_red = red & 0xff;
int new_blue = argb & 0xff; int new_blue = argb & 0xff;
new_red -= ColorTransformDelta(m->green_to_red_, green); new_red -= ColorTransformDelta((int8_t)m->green_to_red_, green);
new_red &= 0xff; new_red &= 0xff;
new_blue -= ColorTransformDelta(m->green_to_blue_, green); new_blue -= ColorTransformDelta((int8_t)m->green_to_blue_, green);
new_blue -= ColorTransformDelta(m->red_to_blue_, red); new_blue -= ColorTransformDelta((int8_t)m->red_to_blue_, red);
new_blue &= 0xff; new_blue &= 0xff;
data[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue); data[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue);
} }
@ -560,7 +560,7 @@ static WEBP_INLINE uint8_t TransformColorRed(uint8_t green_to_red,
uint32_t argb) { uint32_t argb) {
const int8_t green = U32ToS8(argb >> 8); const int8_t green = U32ToS8(argb >> 8);
int new_red = argb >> 16; int new_red = argb >> 16;
new_red -= ColorTransformDelta(green_to_red, green); new_red -= ColorTransformDelta((int8_t)green_to_red, green);
return (new_red & 0xff); return (new_red & 0xff);
} }
@ -570,8 +570,8 @@ static WEBP_INLINE uint8_t TransformColorBlue(uint8_t green_to_blue,
const int8_t green = U32ToS8(argb >> 8); const int8_t green = U32ToS8(argb >> 8);
const int8_t red = U32ToS8(argb >> 16); const int8_t red = U32ToS8(argb >> 16);
uint8_t new_blue = argb & 0xff; uint8_t new_blue = argb & 0xff;
new_blue -= ColorTransformDelta(green_to_blue, green); new_blue -= ColorTransformDelta((int8_t)green_to_blue, green);
new_blue -= ColorTransformDelta(red_to_blue, red); new_blue -= ColorTransformDelta((int8_t)red_to_blue, red);
return (new_blue & 0xff); return (new_blue & 0xff);
} }