diff options
| author | Justin Ruggles <justin.ruggles@gmail.com> | 2012-09-22 18:41:25 -0400 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2012-11-26 11:30:19 -0500 |
| commit | 947f933687b9fd4d80b6cad468ddc2b5b20a9c38 (patch) | |
| tree | 64f58493f3abc3690267f77899289ccfbe49734a /libavutil/x86/float_dsp.asm | |
| parent | 284ea790d89441fa1e6b2d72d3c1ed6d61972f0b (diff) | |
x86: float_dsp: add SSE version of vector_fmul_scalar()
Diffstat (limited to 'libavutil/x86/float_dsp.asm')
| -rw-r--r-- | libavutil/x86/float_dsp.asm | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libavutil/x86/float_dsp.asm b/libavutil/x86/float_dsp.asm index a8857b937c..317df9c3c1 100644 --- a/libavutil/x86/float_dsp.asm +++ b/libavutil/x86/float_dsp.asm @@ -85,3 +85,32 @@ INIT_XMM sse VECTOR_FMAC_SCALAR INIT_YMM avx VECTOR_FMAC_SCALAR + +;------------------------------------------------------------------------------ +; void ff_vector_fmul_scalar(float *dst, const float *src, float mul, int len) +;------------------------------------------------------------------------------ + +%macro VECTOR_FMUL_SCALAR 0 +%if UNIX64 +cglobal vector_fmul_scalar, 3,3,2, dst, src, len +%else +cglobal vector_fmul_scalar, 4,4,3, dst, src, mul, len +%endif +%if ARCH_X86_32 + movss m0, mulm +%elif WIN64 + SWAP 0, 2 +%endif + shufps m0, m0, 0 + lea lenq, [lend*4-mmsize] +.loop: + mova m1, [srcq+lenq] + mulps m1, m0 + mova [dstq+lenq], m1 + sub lenq, mmsize + jge .loop + REP_RET +%endmacro + +INIT_XMM sse +VECTOR_FMUL_SCALAR |