1 diff --git a/gfx/ycbcr/yuv_convert.cpp b/gfx/ycbcr/yuv_convert.cpp
2 --- a/gfx/ycbcr/yuv_convert.cpp
3 +++ b/gfx/ycbcr/yuv_convert.cpp
4 @@ -337,16 +337,17 @@ NS_GFX_(void) ScaleYCbCrToRGB32(const ui
5 source_dx_uv >> kFractionBits);
9 ScaleYUVToRGB32Row_C(y_ptr, u_ptr, v_ptr,
10 dest_pixel, width, source_dx);
14 ScaleYUVToRGB32Row(y_ptr, u_ptr, v_ptr,
15 dest_pixel, width, source_dx);
19 // MMX used for FastConvertYUVToRGB32Row and FilterRows requires emms.
22 diff --git a/gfx/ycbcr/yuv_row.h b/gfx/ycbcr/yuv_row.h
23 --- a/gfx/ycbcr/yuv_row.h
24 +++ b/gfx/ycbcr/yuv_row.h
25 @@ -129,14 +129,14 @@ extern SIMD_ALIGNED(int16 kCoefficientsR
26 #if defined(ARCH_CPU_X86) && !defined(ARCH_CPU_X86_64)
28 #define EMMS() __asm emms
29 #pragma warning(disable: 4799)
31 #define EMMS() asm("emms")
35 +#define EMMS() ((void)0)
40 #endif // MEDIA_BASE_YUV_ROW_H_