michael@0: diff --git a/gfx/ycbcr/yuv_convert.cpp b/gfx/ycbcr/yuv_convert.cpp
michael@0: --- a/gfx/ycbcr/yuv_convert.cpp
michael@0: +++ b/gfx/ycbcr/yuv_convert.cpp
michael@0: @@ -337,16 +337,17 @@ NS_GFX_(void) ScaleYCbCrToRGB32(const ui
michael@0:                                           source_dx_uv >> kFractionBits);
michael@0:          }
michael@0:        }
michael@0:        else {
michael@0:          ScaleYUVToRGB32Row_C(y_ptr, u_ptr, v_ptr,
michael@0:                               dest_pixel, width, source_dx);
michael@0:        }
michael@0:  #else
michael@0: +      (void)source_dx_uv;
michael@0:        ScaleYUVToRGB32Row(y_ptr, u_ptr, v_ptr,
michael@0:                           dest_pixel, width, source_dx);
michael@0:  #endif
michael@0:      }
michael@0:    }
michael@0:    // MMX used for FastConvertYUVToRGB32Row and FilterRows requires emms.
michael@0:    if (has_mmx)
michael@0:      EMMS();
michael@0: diff --git a/gfx/ycbcr/yuv_row.h b/gfx/ycbcr/yuv_row.h
michael@0: --- a/gfx/ycbcr/yuv_row.h
michael@0: +++ b/gfx/ycbcr/yuv_row.h
michael@0: @@ -129,14 +129,14 @@ extern SIMD_ALIGNED(int16 kCoefficientsR
michael@0:  #if defined(ARCH_CPU_X86) && !defined(ARCH_CPU_X86_64)
michael@0:  #if defined(_MSC_VER)
michael@0:  #define EMMS() __asm emms
michael@0:  #pragma warning(disable: 4799)
michael@0:  #else
michael@0:  #define EMMS() asm("emms")
michael@0:  #endif
michael@0:  #else
michael@0: -#define EMMS()
michael@0: +#define EMMS() ((void)0)
michael@0:  #endif
michael@0:  
michael@0:  }  // extern "C"
michael@0:  
michael@0:  #endif  // MEDIA_BASE_YUV_ROW_H_