x86/swscale: use unsigned to build SIMD values to avoid signed overflow

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · ef912134f0
parent 8470e6c96f
commit ef912134f0
1 changed files with 2 additions and 2 deletions
--- a/libswscale/x86/swscale.c
+++ b/libswscale/x86/swscale.c
@ -188,7 +188,7 @@ void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufI
                *(const void**)&lumMmxFilter[4*i+0]= lumSrcPtr[i];
                lumMmxFilter[4*i+2]=
                lumMmxFilter[4*i+3]=
-                ((uint16_t)vLumFilter[dstY*vLumFilterSize + i])*0x10001;
+                ((uint16_t)vLumFilter[dstY*vLumFilterSize + i])*0x10001U;
                if (CONFIG_SWSCALE_ALPHA && alpPixBuf) {
                    *(const void**)&alpMmxFilter[4*i+0]= alpSrcPtr[i];
                    alpMmxFilter[4*i+2]=
@ -199,7 +199,7 @@ void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufI
                *(const void**)&chrMmxFilter[4*i+0]= chrUSrcPtr[i];
                chrMmxFilter[4*i+2]=
                chrMmxFilter[4*i+3]=
-                ((uint16_t)vChrFilter[chrDstY*vChrFilterSize + i])*0x10001;
+                ((uint16_t)vChrFilter[chrDstY*vChrFilterSize + i])*0x10001U;
            }
        }
    }