forked from KolibriOS/kolibrios
232 lines
10 KiB
C
232 lines
10 KiB
C
/*
|
|
* x86-optimized AC-3 DSP utils
|
|
* Copyright (c) 2011 Justin Ruggles
|
|
*
|
|
* 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/mem.h"
|
|
#include "libavutil/x86/asm.h"
|
|
#include "libavutil/x86/cpu.h"
|
|
#include "dsputil_x86.h"
|
|
#include "libavcodec/ac3.h"
|
|
#include "libavcodec/ac3dsp.h"
|
|
|
|
void ff_ac3_exponent_min_mmx (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
|
|
void ff_ac3_exponent_min_mmxext(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
|
|
void ff_ac3_exponent_min_sse2 (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
|
|
|
|
int ff_ac3_max_msb_abs_int16_mmx (const int16_t *src, int len);
|
|
int ff_ac3_max_msb_abs_int16_mmxext(const int16_t *src, int len);
|
|
int ff_ac3_max_msb_abs_int16_sse2 (const int16_t *src, int len);
|
|
int ff_ac3_max_msb_abs_int16_ssse3(const int16_t *src, int len);
|
|
|
|
void ff_ac3_lshift_int16_mmx (int16_t *src, unsigned int len, unsigned int shift);
|
|
void ff_ac3_lshift_int16_sse2(int16_t *src, unsigned int len, unsigned int shift);
|
|
|
|
void ff_ac3_rshift_int32_mmx (int32_t *src, unsigned int len, unsigned int shift);
|
|
void ff_ac3_rshift_int32_sse2(int32_t *src, unsigned int len, unsigned int shift);
|
|
|
|
void ff_float_to_fixed24_3dnow(int32_t *dst, const float *src, unsigned int len);
|
|
void ff_float_to_fixed24_sse (int32_t *dst, const float *src, unsigned int len);
|
|
void ff_float_to_fixed24_sse2 (int32_t *dst, const float *src, unsigned int len);
|
|
|
|
int ff_ac3_compute_mantissa_size_sse2(uint16_t mant_cnt[6][16]);
|
|
|
|
void ff_ac3_extract_exponents_3dnow(uint8_t *exp, int32_t *coef, int nb_coefs);
|
|
void ff_ac3_extract_exponents_sse2 (uint8_t *exp, int32_t *coef, int nb_coefs);
|
|
void ff_ac3_extract_exponents_ssse3(uint8_t *exp, int32_t *coef, int nb_coefs);
|
|
|
|
#if ARCH_X86_32 && defined(__INTEL_COMPILER)
|
|
# undef HAVE_7REGS
|
|
# define HAVE_7REGS 0
|
|
#endif
|
|
|
|
#if HAVE_SSE_INLINE && HAVE_7REGS
|
|
|
|
#define IF1(x) x
|
|
#define IF0(x)
|
|
|
|
#define MIX5(mono, stereo) \
|
|
__asm__ volatile ( \
|
|
"movss 0(%1), %%xmm5 \n" \
|
|
"movss 8(%1), %%xmm6 \n" \
|
|
"movss 24(%1), %%xmm7 \n" \
|
|
"shufps $0, %%xmm5, %%xmm5 \n" \
|
|
"shufps $0, %%xmm6, %%xmm6 \n" \
|
|
"shufps $0, %%xmm7, %%xmm7 \n" \
|
|
"1: \n" \
|
|
"movaps (%0, %2), %%xmm0 \n" \
|
|
"movaps (%0, %3), %%xmm1 \n" \
|
|
"movaps (%0, %4), %%xmm2 \n" \
|
|
"movaps (%0, %5), %%xmm3 \n" \
|
|
"movaps (%0, %6), %%xmm4 \n" \
|
|
"mulps %%xmm5, %%xmm0 \n" \
|
|
"mulps %%xmm6, %%xmm1 \n" \
|
|
"mulps %%xmm5, %%xmm2 \n" \
|
|
"mulps %%xmm7, %%xmm3 \n" \
|
|
"mulps %%xmm7, %%xmm4 \n" \
|
|
stereo("addps %%xmm1, %%xmm0 \n") \
|
|
"addps %%xmm1, %%xmm2 \n" \
|
|
"addps %%xmm3, %%xmm0 \n" \
|
|
"addps %%xmm4, %%xmm2 \n" \
|
|
mono("addps %%xmm2, %%xmm0 \n") \
|
|
"movaps %%xmm0, (%0, %2) \n" \
|
|
stereo("movaps %%xmm2, (%0, %3) \n") \
|
|
"add $16, %0 \n" \
|
|
"jl 1b \n" \
|
|
: "+&r"(i) \
|
|
: "r"(matrix), \
|
|
"r"(samples[0] + len), \
|
|
"r"(samples[1] + len), \
|
|
"r"(samples[2] + len), \
|
|
"r"(samples[3] + len), \
|
|
"r"(samples[4] + len) \
|
|
: XMM_CLOBBERS("%xmm0", "%xmm1", "%xmm2", "%xmm3", \
|
|
"%xmm4", "%xmm5", "%xmm6", "%xmm7",) \
|
|
"memory" \
|
|
);
|
|
|
|
#define MIX_MISC(stereo) \
|
|
__asm__ volatile ( \
|
|
"mov %5, %2 \n" \
|
|
"1: \n" \
|
|
"mov -%c7(%6, %2, %c8), %3 \n" \
|
|
"movaps (%3, %0), %%xmm0 \n" \
|
|
stereo("movaps %%xmm0, %%xmm1 \n") \
|
|
"mulps %%xmm4, %%xmm0 \n" \
|
|
stereo("mulps %%xmm5, %%xmm1 \n") \
|
|
"2: \n" \
|
|
"mov (%6, %2, %c8), %1 \n" \
|
|
"movaps (%1, %0), %%xmm2 \n" \
|
|
stereo("movaps %%xmm2, %%xmm3 \n") \
|
|
"mulps (%4, %2, 8), %%xmm2 \n" \
|
|
stereo("mulps 16(%4, %2, 8), %%xmm3 \n") \
|
|
"addps %%xmm2, %%xmm0 \n" \
|
|
stereo("addps %%xmm3, %%xmm1 \n") \
|
|
"add $4, %2 \n" \
|
|
"jl 2b \n" \
|
|
"mov %5, %2 \n" \
|
|
stereo("mov (%6, %2, %c8), %1 \n") \
|
|
"movaps %%xmm0, (%3, %0) \n" \
|
|
stereo("movaps %%xmm1, (%1, %0) \n") \
|
|
"add $16, %0 \n" \
|
|
"jl 1b \n" \
|
|
: "+&r"(i), "=&r"(j), "=&r"(k), "=&r"(m) \
|
|
: "r"(matrix_simd + in_ch), \
|
|
"g"((intptr_t) - 4 * (in_ch - 1)), \
|
|
"r"(samp + in_ch), \
|
|
"i"(sizeof(float *)), "i"(sizeof(float *)/4) \
|
|
: "memory" \
|
|
);
|
|
|
|
static void ac3_downmix_sse(float **samples, float (*matrix)[2],
|
|
int out_ch, int in_ch, int len)
|
|
{
|
|
int (*matrix_cmp)[2] = (int(*)[2])matrix;
|
|
intptr_t i, j, k, m;
|
|
|
|
i = -len * sizeof(float);
|
|
if (in_ch == 5 && out_ch == 2 &&
|
|
!(matrix_cmp[0][1] | matrix_cmp[2][0] |
|
|
matrix_cmp[3][1] | matrix_cmp[4][0] |
|
|
(matrix_cmp[1][0] ^ matrix_cmp[1][1]) |
|
|
(matrix_cmp[0][0] ^ matrix_cmp[2][1]))) {
|
|
MIX5(IF0, IF1);
|
|
} else if (in_ch == 5 && out_ch == 1 &&
|
|
matrix_cmp[0][0] == matrix_cmp[2][0] &&
|
|
matrix_cmp[3][0] == matrix_cmp[4][0]) {
|
|
MIX5(IF1, IF0);
|
|
} else {
|
|
DECLARE_ALIGNED(16, float, matrix_simd)[AC3_MAX_CHANNELS][2][4];
|
|
float *samp[AC3_MAX_CHANNELS];
|
|
|
|
for (j = 0; j < in_ch; j++)
|
|
samp[j] = samples[j] + len;
|
|
|
|
j = 2 * in_ch * sizeof(float);
|
|
__asm__ volatile (
|
|
"1: \n"
|
|
"sub $8, %0 \n"
|
|
"movss (%2, %0), %%xmm4 \n"
|
|
"movss 4(%2, %0), %%xmm5 \n"
|
|
"shufps $0, %%xmm4, %%xmm4 \n"
|
|
"shufps $0, %%xmm5, %%xmm5 \n"
|
|
"movaps %%xmm4, (%1, %0, 4) \n"
|
|
"movaps %%xmm5, 16(%1, %0, 4) \n"
|
|
"jg 1b \n"
|
|
: "+&r"(j)
|
|
: "r"(matrix_simd), "r"(matrix)
|
|
: "memory"
|
|
);
|
|
if (out_ch == 2) {
|
|
MIX_MISC(IF1);
|
|
} else {
|
|
MIX_MISC(IF0);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* HAVE_SSE_INLINE && HAVE_7REGS */
|
|
|
|
av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
if (EXTERNAL_MMX(cpu_flags)) {
|
|
c->ac3_exponent_min = ff_ac3_exponent_min_mmx;
|
|
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmx;
|
|
c->ac3_lshift_int16 = ff_ac3_lshift_int16_mmx;
|
|
c->ac3_rshift_int32 = ff_ac3_rshift_int32_mmx;
|
|
}
|
|
if (EXTERNAL_AMD3DNOW(cpu_flags)) {
|
|
if (!bit_exact) {
|
|
c->float_to_fixed24 = ff_float_to_fixed24_3dnow;
|
|
}
|
|
}
|
|
if (EXTERNAL_MMXEXT(cpu_flags)) {
|
|
c->ac3_exponent_min = ff_ac3_exponent_min_mmxext;
|
|
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmxext;
|
|
}
|
|
if (EXTERNAL_SSE(cpu_flags)) {
|
|
c->float_to_fixed24 = ff_float_to_fixed24_sse;
|
|
}
|
|
if (EXTERNAL_SSE2(cpu_flags)) {
|
|
c->ac3_exponent_min = ff_ac3_exponent_min_sse2;
|
|
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_sse2;
|
|
c->float_to_fixed24 = ff_float_to_fixed24_sse2;
|
|
c->compute_mantissa_size = ff_ac3_compute_mantissa_size_sse2;
|
|
c->extract_exponents = ff_ac3_extract_exponents_sse2;
|
|
if (!(cpu_flags & AV_CPU_FLAG_SSE2SLOW)) {
|
|
c->ac3_lshift_int16 = ff_ac3_lshift_int16_sse2;
|
|
c->ac3_rshift_int32 = ff_ac3_rshift_int32_sse2;
|
|
}
|
|
}
|
|
if (EXTERNAL_SSSE3(cpu_flags)) {
|
|
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_ssse3;
|
|
if (!(cpu_flags & AV_CPU_FLAG_ATOM)) {
|
|
c->extract_exponents = ff_ac3_extract_exponents_ssse3;
|
|
}
|
|
}
|
|
|
|
#if HAVE_SSE_INLINE && HAVE_7REGS
|
|
if (INLINE_SSE(cpu_flags)) {
|
|
c->downmix = ac3_downmix_sse;
|
|
}
|
|
#endif
|
|
}
|