+++ /dev/null
-/*
- * MLP DSP functions x86-optimized
- * Copyright (c) 2009 Ramiro Polla
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "libavutil/attributes.h"
-#include "libavutil/cpu.h"
-#include "libavutil/x86/asm.h"
-#include "libavutil/x86/cpu.h"
-#include "libavcodec/mlpdsp.h"
-#include "libavcodec/mlp.h"
-
-#if HAVE_7REGS && HAVE_INLINE_ASM && HAVE_INLINE_ASM_NONLOCAL_LABELS
-
-extern char ff_mlp_firorder_8;
-extern char ff_mlp_firorder_7;
-extern char ff_mlp_firorder_6;
-extern char ff_mlp_firorder_5;
-extern char ff_mlp_firorder_4;
-extern char ff_mlp_firorder_3;
-extern char ff_mlp_firorder_2;
-extern char ff_mlp_firorder_1;
-extern char ff_mlp_firorder_0;
-
-extern char ff_mlp_iirorder_4;
-extern char ff_mlp_iirorder_3;
-extern char ff_mlp_iirorder_2;
-extern char ff_mlp_iirorder_1;
-extern char ff_mlp_iirorder_0;
-
-static const void * const firtable[9] = { &ff_mlp_firorder_0, &ff_mlp_firorder_1,
- &ff_mlp_firorder_2, &ff_mlp_firorder_3,
- &ff_mlp_firorder_4, &ff_mlp_firorder_5,
- &ff_mlp_firorder_6, &ff_mlp_firorder_7,
- &ff_mlp_firorder_8 };
-static const void * const iirtable[5] = { &ff_mlp_iirorder_0, &ff_mlp_iirorder_1,
- &ff_mlp_iirorder_2, &ff_mlp_iirorder_3,
- &ff_mlp_iirorder_4 };
-
-#if ARCH_X86_64
-
-#define MLPMUL(label, offset, offs, offc) \
- LABEL_MANGLE(label)": \n\t" \
- "movslq "offset"+"offs"(%0), %%rax\n\t" \
- "movslq "offset"+"offc"(%1), %%rdx\n\t" \
- "imul %%rdx, %%rax\n\t" \
- "add %%rax, %%rsi\n\t"
-
-#define FIRMULREG(label, offset, firc)\
- LABEL_MANGLE(label)": \n\t" \
- "movslq "#offset"(%0), %%rax\n\t" \
- "imul %"#firc", %%rax\n\t" \
- "add %%rax, %%rsi\n\t"
-
-#define CLEAR_ACCUM \
- "xor %%rsi, %%rsi\n\t"
-
-#define SHIFT_ACCUM \
- "shr %%cl, %%rsi\n\t"
-
-#define ACCUM "%%rdx"
-#define RESULT "%%rsi"
-#define RESULT32 "%%esi"
-
-#else /* if ARCH_X86_32 */
-
-#define MLPMUL(label, offset, offs, offc) \
- LABEL_MANGLE(label)": \n\t" \
- "mov "offset"+"offs"(%0), %%eax\n\t" \
- "imull "offset"+"offc"(%1) \n\t" \
- "add %%eax , %%esi\n\t" \
- "adc %%edx , %%ecx\n\t"
-
-#define FIRMULREG(label, offset, firc) \
- MLPMUL(label, #offset, "0", "0")
-
-#define CLEAR_ACCUM \
- "xor %%esi, %%esi\n\t" \
- "xor %%ecx, %%ecx\n\t"
-
-#define SHIFT_ACCUM \
- "mov %%ecx, %%edx\n\t" \
- "mov %%esi, %%eax\n\t" \
- "movzbl %7 , %%ecx\n\t" \
- "shrd %%cl, %%edx, %%eax\n\t" \
-
-#define ACCUM "%%edx"
-#define RESULT "%%eax"
-#define RESULT32 "%%eax"
-
-#endif /* !ARCH_X86_64 */
-
-#define BINC AV_STRINGIFY(4* MAX_CHANNELS)
-#define IOFFS AV_STRINGIFY(4*(MAX_FIR_ORDER + MAX_BLOCKSIZE))
-#define IOFFC AV_STRINGIFY(4* MAX_FIR_ORDER)
-
-#define FIRMUL(label, offset) MLPMUL(label, #offset, "0", "0")
-#define IIRMUL(label, offset) MLPMUL(label, #offset, IOFFS, IOFFC)
-
-static void mlp_filter_channel_x86(int32_t *state, const int32_t *coeff,
- int firorder, int iirorder,
- unsigned int filter_shift, int32_t mask,
- int blocksize, int32_t *sample_buffer)
-{
- const void *firjump = firtable[firorder];
- const void *iirjump = iirtable[iirorder];
-
- blocksize = -blocksize;
-
- __asm__ volatile(
- "1: \n\t"
- CLEAR_ACCUM
- "jmp *%5 \n\t"
- FIRMUL (ff_mlp_firorder_8, 0x1c )
- FIRMUL (ff_mlp_firorder_7, 0x18 )
- FIRMUL (ff_mlp_firorder_6, 0x14 )
- FIRMUL (ff_mlp_firorder_5, 0x10 )
- FIRMUL (ff_mlp_firorder_4, 0x0c )
- FIRMULREG(ff_mlp_firorder_3, 0x08,10)
- FIRMULREG(ff_mlp_firorder_2, 0x04, 9)
- FIRMULREG(ff_mlp_firorder_1, 0x00, 8)
- LABEL_MANGLE(ff_mlp_firorder_0)":\n\t"
- "jmp *%6 \n\t"
- IIRMUL (ff_mlp_iirorder_4, 0x0c )
- IIRMUL (ff_mlp_iirorder_3, 0x08 )
- IIRMUL (ff_mlp_iirorder_2, 0x04 )
- IIRMUL (ff_mlp_iirorder_1, 0x00 )
- LABEL_MANGLE(ff_mlp_iirorder_0)":\n\t"
- SHIFT_ACCUM
- "mov "RESULT" ,"ACCUM" \n\t"
- "add (%2) ,"RESULT" \n\t"
- "and %4 ,"RESULT" \n\t"
- "sub $4 , %0 \n\t"
- "mov "RESULT32", (%0) \n\t"
- "mov "RESULT32", (%2) \n\t"
- "add $"BINC" , %2 \n\t"
- "sub "ACCUM" ,"RESULT" \n\t"
- "mov "RESULT32","IOFFS"(%0) \n\t"
- "incl %3 \n\t"
- "js 1b \n\t"
- : /* 0*/"+r"(state),
- /* 1*/"+r"(coeff),
- /* 2*/"+r"(sample_buffer),
-#if ARCH_X86_64
- /* 3*/"+r"(blocksize)
- : /* 4*/"r"((x86_reg)mask), /* 5*/"r"(firjump),
- /* 6*/"r"(iirjump) , /* 7*/"c"(filter_shift)
- , /* 8*/"r"((int64_t)coeff[0])
- , /* 9*/"r"((int64_t)coeff[1])
- , /*10*/"r"((int64_t)coeff[2])
- : "rax", "rdx", "rsi"
-#else /* ARCH_X86_32 */
- /* 3*/"+m"(blocksize)
- : /* 4*/"m"( mask), /* 5*/"m"(firjump),
- /* 6*/"m"(iirjump) , /* 7*/"m"(filter_shift)
- : "eax", "edx", "esi", "ecx"
-#endif /* !ARCH_X86_64 */
- );
-}
-
-#endif /* HAVE_7REGS && HAVE_INLINE_ASM */
-
-av_cold void ff_mlpdsp_init_x86(MLPDSPContext *c)
-{
-#if HAVE_7REGS && HAVE_INLINE_ASM && HAVE_INLINE_ASM_NONLOCAL_LABELS
- int cpu_flags = av_get_cpu_flags();
- if (INLINE_MMX(cpu_flags))
- c->mlp_filter_channel = mlp_filter_channel_x86;
-#endif
-}
repositories / deb_ffmpeg.git / blobdiff