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Diffstat (limited to 'thirdparty/libwebp/src/dsp/lossless.c')
-rw-r--r--thirdparty/libwebp/src/dsp/lossless.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/thirdparty/libwebp/src/dsp/lossless.c b/thirdparty/libwebp/src/dsp/lossless.c
index d21aa6a0a0..d05af84e7b 100644
--- a/thirdparty/libwebp/src/dsp/lossless.c
+++ b/thirdparty/libwebp/src/dsp/lossless.c
@@ -270,14 +270,14 @@ void VP8LTransformColorInverse_C(const VP8LMultipliers* const m,
int i;
for (i = 0; i < num_pixels; ++i) {
const uint32_t argb = src[i];
- const uint32_t green = argb >> 8;
+ const int8_t green = (int8_t)(argb >> 8);
const uint32_t red = argb >> 16;
int new_red = red & 0xff;
int new_blue = argb & 0xff;
new_red += ColorTransformDelta(m->green_to_red_, green);
new_red &= 0xff;
new_blue += ColorTransformDelta(m->green_to_blue_, green);
- new_blue += ColorTransformDelta(m->red_to_blue_, new_red);
+ new_blue += ColorTransformDelta(m->red_to_blue_, (int8_t)new_red);
new_blue &= 0xff;
dst[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue);
}