diff options
Diffstat (limited to 'libavutil/x86/float_dsp.asm')
| -rw-r--r-- | libavutil/x86/float_dsp.asm | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libavutil/x86/float_dsp.asm b/libavutil/x86/float_dsp.asm index 126f3495c4..779339c575 100644 --- a/libavutil/x86/float_dsp.asm +++ b/libavutil/x86/float_dsp.asm @@ -227,3 +227,28 @@ INIT_XMM sse VECTOR_FMUL_REVERSE INIT_YMM avx VECTOR_FMUL_REVERSE + +; float scalarproduct_float_sse(const float *v1, const float *v2, int len) +INIT_XMM sse +cglobal scalarproduct_float, 3,3,2, v1, v2, offset + neg offsetq + shl offsetq, 2 + sub v1q, offsetq + sub v2q, offsetq + xorps xmm0, xmm0 +.loop: + movaps xmm1, [v1q+offsetq] + mulps xmm1, [v2q+offsetq] + addps xmm0, xmm1 + add offsetq, 16 + js .loop + movhlps xmm1, xmm0 + addps xmm0, xmm1 + movss xmm1, xmm0 + shufps xmm0, xmm0, 1 + addss xmm0, xmm1 +%if ARCH_X86_64 == 0 + movss r0m, xmm0 + fld dword r0m +%endif + RET |