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authorMans Rullgard <mans@mansr.com>2012-06-23 19:08:11 +0100
committerMans Rullgard <mans@mansr.com>2012-06-25 13:31:00 +0100
commit82992604706144910f4a2f875d48cfc66c1b70d7 (patch)
tree967292e4dffd4590c06b589cc2560e864b7a4fed /libavcodec/x86/fft_sse.c
parent8123e0901fc7faa3d7dcf80af9ed0d874f8e7a06 (diff)
downloadffmpeg-82992604706144910f4a2f875d48cfc66c1b70d7.tar.gz
x86: fft: convert sse inline asm to yasm
Diffstat (limited to 'libavcodec/x86/fft_sse.c')
-rw-r--r--libavcodec/x86/fft_sse.c110
1 files changed, 0 insertions, 110 deletions
diff --git a/libavcodec/x86/fft_sse.c b/libavcodec/x86/fft_sse.c
deleted file mode 100644
index 13b992f47a..0000000000
--- a/libavcodec/x86/fft_sse.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * FFT/MDCT transform with SSE optimizations
- * Copyright (c) 2008 Loren Merritt
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "libavutil/x86_cpu.h"
-#include "libavcodec/dsputil.h"
-#include "fft.h"
-#include "config.h"
-
-DECLARE_ASM_CONST(16, unsigned int, ff_m1m1m1m1)[4] =
- { 1U << 31, 1U << 31, 1U << 31, 1U << 31 };
-
-void ff_fft_dispatch_sse(FFTComplex *z, int nbits);
-void ff_fft_dispatch_interleave_sse(FFTComplex *z, int nbits);
-void ff_fft_dispatch_interleave_avx(FFTComplex *z, int nbits);
-
-#if HAVE_AVX
-void ff_fft_calc_avx(FFTContext *s, FFTComplex *z)
-{
- ff_fft_dispatch_interleave_avx(z, s->nbits);
-}
-#endif
-
-void ff_fft_calc_sse(FFTContext *s, FFTComplex *z)
-{
- int n = 1 << s->nbits;
-
- ff_fft_dispatch_interleave_sse(z, s->nbits);
-
- if(n <= 16) {
- x86_reg i = -8*n;
- __asm__ volatile(
- "1: \n"
- "movaps (%0,%1), %%xmm0 \n"
- "movaps %%xmm0, %%xmm1 \n"
- "unpcklps 16(%0,%1), %%xmm0 \n"
- "unpckhps 16(%0,%1), %%xmm1 \n"
- "movaps %%xmm0, (%0,%1) \n"
- "movaps %%xmm1, 16(%0,%1) \n"
- "add $32, %0 \n"
- "jl 1b \n"
- :"+r"(i)
- :"r"(z+n)
- :"memory"
- );
- }
-}
-
-void ff_fft_permute_sse(FFTContext *s, FFTComplex *z)
-{
- int n = 1 << s->nbits;
- int i;
- for(i=0; i<n; i+=2) {
- __asm__ volatile(
- "movaps %2, %%xmm0 \n"
- "movlps %%xmm0, %0 \n"
- "movhps %%xmm0, %1 \n"
- :"=m"(s->tmp_buf[s->revtab[i]]),
- "=m"(s->tmp_buf[s->revtab[i+1]])
- :"m"(z[i])
- );
- }
- memcpy(z, s->tmp_buf, n*sizeof(FFTComplex));
-}
-
-void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
-{
- x86_reg j, k;
- long n = s->mdct_size;
- long n4 = n >> 2;
-
- s->imdct_half(s, output + n4, input);
-
- j = -n;
- k = n-16;
- __asm__ volatile(
- "movaps "MANGLE(ff_m1m1m1m1)", %%xmm7 \n"
- "1: \n"
- "movaps (%2,%1), %%xmm0 \n"
- "movaps (%3,%0), %%xmm1 \n"
- "shufps $0x1b, %%xmm0, %%xmm0 \n"
- "shufps $0x1b, %%xmm1, %%xmm1 \n"
- "xorps %%xmm7, %%xmm0 \n"
- "movaps %%xmm1, (%3,%1) \n"
- "movaps %%xmm0, (%2,%0) \n"
- "sub $16, %1 \n"
- "add $16, %0 \n"
- "jl 1b \n"
- :"+r"(j), "+r"(k)
- :"r"(output+n4), "r"(output+n4*3)
- XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm7")
- );
-}