diff options
Diffstat (limited to 'libavcodec/i386')
| -rw-r--r-- | libavcodec/i386/fft_sse.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/i386/fft_sse.c b/libavcodec/i386/fft_sse.c index 8e8e36b0f7..175cea506c 100644 --- a/libavcodec/i386/fft_sse.c +++ b/libavcodec/i386/fft_sse.c @@ -19,11 +19,16 @@ #include "../dsputil.h" #include <math.h> +#ifdef HAVE_BUILTIN_VECTOR + #include <xmmintrin.h> static const float p1p1p1m1[4] __attribute__((aligned(16))) = { 1.0, 1.0, 1.0, -1.0 }; +static const float p1p1m1p1[4] __attribute__((aligned(16))) = + { 1.0, 1.0, -1.0, 1.0 }; + static const float p1p1m1m1[4] __attribute__((aligned(16))) = { 1.0, 1.0, -1.0, -1.0 }; @@ -54,6 +59,11 @@ void fft_calc_sse(FFTContext *s, FFTComplex *z) r = (__m128 *)&z[0]; c1 = *(__m128 *)p1p1m1m1; c2 = *(__m128 *)p1p1p1m1; + if (s->inverse) + c2 = *(__m128 *)p1p1m1p1; + else + c2 = *(__m128 *)p1p1p1m1; + j = (np >> 2); do { a = r[0]; @@ -126,3 +136,5 @@ void fft_calc_sse(FFTContext *s, FFTComplex *z) nloops = nloops << 1; } while (nblocks != 0); } + +#endif |