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156 lines
6.3 KiB
156 lines
6.3 KiB
/* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "config.h" |
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#include "libavutil/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/float_dsp.h" |
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#include "cpu.h" |
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#include "asm.h" |
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void ff_vector_fmul_sse(float *dst, const float *src0, const float *src1, |
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int len); |
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void ff_vector_fmul_avx(float *dst, const float *src0, const float *src1, |
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int len); |
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void ff_vector_fmac_scalar_sse(float *dst, const float *src, float mul, |
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int len); |
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void ff_vector_fmac_scalar_avx(float *dst, const float *src, float mul, |
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int len); |
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void ff_vector_fmul_scalar_sse(float *dst, const float *src, float mul, |
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int len); |
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void ff_vector_dmul_scalar_sse2(double *dst, const double *src, |
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double mul, int len); |
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void ff_vector_dmul_scalar_avx(double *dst, const double *src, |
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double mul, int len); |
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void ff_vector_fmul_add_sse(float *dst, const float *src0, const float *src1, |
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const float *src2, int len); |
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void ff_vector_fmul_add_avx(float *dst, const float *src0, const float *src1, |
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const float *src2, int len); |
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void ff_vector_fmul_reverse_sse(float *dst, const float *src0, |
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const float *src1, int len); |
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void ff_vector_fmul_reverse_avx(float *dst, const float *src0, |
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const float *src1, int len); |
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float ff_scalarproduct_float_sse(const float *v1, const float *v2, int order); |
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void ff_butterflies_float_sse(float *src0, float *src1, int len); |
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#if HAVE_6REGS && HAVE_INLINE_ASM |
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static void vector_fmul_window_3dnowext(float *dst, const float *src0, |
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const float *src1, const float *win, |
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int len) |
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{ |
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x86_reg i = -len * 4; |
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x86_reg j = len * 4 - 8; |
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__asm__ volatile ( |
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"1: \n" |
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"pswapd (%5, %1), %%mm1 \n" |
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"movq (%5, %0), %%mm0 \n" |
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"pswapd (%4, %1), %%mm5 \n" |
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"movq (%3, %0), %%mm4 \n" |
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"movq %%mm0, %%mm2 \n" |
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"movq %%mm1, %%mm3 \n" |
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"pfmul %%mm4, %%mm2 \n" // src0[len + i] * win[len + i] |
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"pfmul %%mm5, %%mm3 \n" // src1[j] * win[len + j] |
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"pfmul %%mm4, %%mm1 \n" // src0[len + i] * win[len + j] |
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"pfmul %%mm5, %%mm0 \n" // src1[j] * win[len + i] |
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"pfadd %%mm3, %%mm2 \n" |
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"pfsub %%mm0, %%mm1 \n" |
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"pswapd %%mm2, %%mm2 \n" |
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"movq %%mm1, (%2, %0) \n" |
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"movq %%mm2, (%2, %1) \n" |
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"sub $8, %1 \n" |
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"add $8, %0 \n" |
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"jl 1b \n" |
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"femms \n" |
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: "+r"(i), "+r"(j) |
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: "r"(dst + len), "r"(src0 + len), "r"(src1), "r"(win + len) |
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); |
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} |
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static void vector_fmul_window_sse(float *dst, const float *src0, |
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const float *src1, const float *win, int len) |
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{ |
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x86_reg i = -len * 4; |
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x86_reg j = len * 4 - 16; |
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__asm__ volatile ( |
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"1: \n" |
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"movaps (%5, %1), %%xmm1 \n" |
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"movaps (%5, %0), %%xmm0 \n" |
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"movaps (%4, %1), %%xmm5 \n" |
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"movaps (%3, %0), %%xmm4 \n" |
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"shufps $0x1b, %%xmm1, %%xmm1 \n" |
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"shufps $0x1b, %%xmm5, %%xmm5 \n" |
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"movaps %%xmm0, %%xmm2 \n" |
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"movaps %%xmm1, %%xmm3 \n" |
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"mulps %%xmm4, %%xmm2 \n" // src0[len + i] * win[len + i] |
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"mulps %%xmm5, %%xmm3 \n" // src1[j] * win[len + j] |
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"mulps %%xmm4, %%xmm1 \n" // src0[len + i] * win[len + j] |
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"mulps %%xmm5, %%xmm0 \n" // src1[j] * win[len + i] |
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"addps %%xmm3, %%xmm2 \n" |
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"subps %%xmm0, %%xmm1 \n" |
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"shufps $0x1b, %%xmm2, %%xmm2 \n" |
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"movaps %%xmm1, (%2, %0) \n" |
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"movaps %%xmm2, (%2, %1) \n" |
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"sub $16, %1 \n" |
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"add $16, %0 \n" |
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"jl 1b \n" |
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: "+r"(i), "+r"(j) |
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: "r"(dst + len), "r"(src0 + len), "r"(src1), "r"(win + len) |
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); |
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} |
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#endif /* HAVE_6REGS && HAVE_INLINE_ASM */ |
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av_cold void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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#if HAVE_6REGS && HAVE_INLINE_ASM |
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if (INLINE_AMD3DNOWEXT(cpu_flags)) { |
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fdsp->vector_fmul_window = vector_fmul_window_3dnowext; |
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} |
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if (INLINE_SSE(cpu_flags)) { |
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fdsp->vector_fmul_window = vector_fmul_window_sse; |
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} |
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#endif |
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if (EXTERNAL_SSE(cpu_flags)) { |
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fdsp->vector_fmul = ff_vector_fmul_sse; |
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fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_sse; |
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fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_sse; |
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fdsp->vector_fmul_add = ff_vector_fmul_add_sse; |
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fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_sse; |
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fdsp->scalarproduct_float = ff_scalarproduct_float_sse; |
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fdsp->butterflies_float = ff_butterflies_float_sse; |
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} |
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if (EXTERNAL_SSE2(cpu_flags)) { |
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fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_sse2; |
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} |
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if (EXTERNAL_AVX_FAST(cpu_flags)) { |
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fdsp->vector_fmul = ff_vector_fmul_avx; |
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fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_avx; |
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fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_avx; |
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fdsp->vector_fmul_add = ff_vector_fmul_add_avx; |
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fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_avx; |
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} |
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}
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