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-rw-r--r--ac3dec/imdct_kni.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/ac3dec/imdct_kni.c b/ac3dec/imdct_kni.c
deleted file mode 100644
index b44547a9..00000000
--- a/ac3dec/imdct_kni.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * imdct_kni.c
- *
- * Copyright (C) Aaron Holtzman - May 1999
- *
- * This file is part of ac3dec, a free Dolby AC-3 stream decoder.
- *
- * ac3dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * ac3dec 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Make; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- */
-
-#ifdef __i386__
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <math.h>
-#include <mm_accel.h>
-#include "ac3.h"
-#include "ac3_internal.h"
-
-#include "downmix.h"
-#include "imdct_kni.h"
-#include "srfft.h"
-
-#define N 512
-
-/* Delay buffer for time domain interleaving */
-static float xcos_sin_sse[128 * 4] __attribute__((aligned(16)));
-
-extern void (*imdct_do_512) (float data[],float delay[]);
-extern void (*imdct_do_512_nol) (float data[], float delay[]);
-extern void (*fft_64p) (complex_t *);
-
-extern const int pm128[];
-extern float window[];
-extern complex_t buf[128];
-
-extern void fft_64p_kni (complex_t *);
-extern void fft_128p_kni (complex_t *);
-
-static void imdct_do_512_kni (float data[], float delay[]);
-static void imdct_do_512_nol_kni (float data[], float delay[]);
-
-
-int imdct_init_kni (void)
-{
- uint32_t accel = mm_accel ();
-
- if (accel & MM_ACCEL_X86_MMXEXT) {
- int i;
- float scale = 255.99609372;
-
- fprintf (stderr, "Using SSE for IMDCT\n");
- imdct_do_512 = imdct_do_512_kni;
- imdct_do_512_nol = imdct_do_512_nol_kni;
- fft_64p = fft_64p_kni;
-
- for (i=0; i < 128; i++) {
- float xcos_i = cos(2.0f * M_PI * (8*i+1)/(8*N)) * scale;
- float xsin_i = sin(2.0f * M_PI * (8*i+1)/(8*N)) * scale;
- xcos_sin_sse[i * 4] = xcos_i;
- xcos_sin_sse[i * 4 + 1] = -xsin_i;
- xcos_sin_sse[i * 4 + 2] = -xsin_i;
- xcos_sin_sse[i * 4 + 3] = -xcos_i;
- }
-
- return 0;
- } else
- return -1;
-}
-
-
-static void imdct_do_512_kni (float data[], float delay[])
-{
- imdct512_pre_ifft_twiddle_kni (pm128, buf, data, xcos_sin_sse);
- fft_128p_kni (buf);
- imdct512_post_ifft_twiddle_kni (buf, xcos_sin_sse);
- imdct512_window_delay_kni (buf, data, window, delay);
-}
-
-
-static void imdct_do_512_nol_kni (float data[], float delay[])
-{
- imdct512_pre_ifft_twiddle_kni (pm128, buf, data, xcos_sin_sse);
- fft_128p_kni (buf);
- imdct512_post_ifft_twiddle_kni (buf, xcos_sin_sse);
- imdct512_window_delay_nol_kni (buf, data, window, delay);
-}
-
-#endif