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Diffstat (limited to 'media/ffvpx/libavcodec/x86/mpegaudiodsp.c')
-rw-r--r--media/ffvpx/libavcodec/x86/mpegaudiodsp.c284
1 files changed, 284 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/x86/mpegaudiodsp.c b/media/ffvpx/libavcodec/x86/mpegaudiodsp.c
new file mode 100644
index 0000000000..6586fe0726
--- /dev/null
+++ b/media/ffvpx/libavcodec/x86/mpegaudiodsp.c
@@ -0,0 +1,284 @@
+/*
+ * SIMD-optimized MP3 decoding functions
+ * Copyright (c) 2010 Vitor Sessak
+ *
+ * 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 <stddef.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem_internal.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/mpegaudiodsp.h"
+
+#define DECL(CPU)\
+static void imdct36_blocks_ ## CPU(float *out, float *buf, float *in, int count, int switch_point, int block_type);\
+void ff_imdct36_float_ ## CPU(float *out, float *buf, float *in, float *win);
+
+#if HAVE_X86ASM
+DECL(sse2)
+DECL(sse3)
+DECL(ssse3)
+DECL(avx)
+#endif /* HAVE_X86ASM */
+
+void ff_four_imdct36_float_sse(float *out, float *buf, float *in, float *win,
+ float *tmpbuf);
+void ff_four_imdct36_float_avx(float *out, float *buf, float *in, float *win,
+ float *tmpbuf);
+
+DECLARE_ALIGNED(16, static float, mdct_win_sse)[2][4][4*40];
+
+#if HAVE_6REGS && HAVE_SSE_INLINE
+
+#define MACS(rt, ra, rb) rt+=(ra)*(rb)
+#define MLSS(rt, ra, rb) rt-=(ra)*(rb)
+
+#define SUM8(op, sum, w, p) \
+{ \
+ op(sum, (w)[0 * 64], (p)[0 * 64]); \
+ op(sum, (w)[1 * 64], (p)[1 * 64]); \
+ op(sum, (w)[2 * 64], (p)[2 * 64]); \
+ op(sum, (w)[3 * 64], (p)[3 * 64]); \
+ op(sum, (w)[4 * 64], (p)[4 * 64]); \
+ op(sum, (w)[5 * 64], (p)[5 * 64]); \
+ op(sum, (w)[6 * 64], (p)[6 * 64]); \
+ op(sum, (w)[7 * 64], (p)[7 * 64]); \
+}
+
+static void apply_window(const float *buf, const float *win1,
+ const float *win2, float *sum1, float *sum2, int len)
+{
+ x86_reg count = - 4*len;
+ const float *win1a = win1+len;
+ const float *win2a = win2+len;
+ const float *bufa = buf+len;
+ float *sum1a = sum1+len;
+ float *sum2a = sum2+len;
+
+
+#define MULT(a, b) \
+ "movaps " #a "(%1,%0), %%xmm1 \n\t" \
+ "movaps " #a "(%3,%0), %%xmm2 \n\t" \
+ "mulps %%xmm2, %%xmm1 \n\t" \
+ "subps %%xmm1, %%xmm0 \n\t" \
+ "mulps " #b "(%2,%0), %%xmm2 \n\t" \
+ "subps %%xmm2, %%xmm4 \n\t" \
+
+ __asm__ volatile(
+ "1: \n\t"
+ "xorps %%xmm0, %%xmm0 \n\t"
+ "xorps %%xmm4, %%xmm4 \n\t"
+
+ MULT( 0, 0)
+ MULT( 256, 64)
+ MULT( 512, 128)
+ MULT( 768, 192)
+ MULT(1024, 256)
+ MULT(1280, 320)
+ MULT(1536, 384)
+ MULT(1792, 448)
+
+ "movaps %%xmm0, (%4,%0) \n\t"
+ "movaps %%xmm4, (%5,%0) \n\t"
+ "add $16, %0 \n\t"
+ "jl 1b \n\t"
+ :"+&r"(count)
+ :"r"(win1a), "r"(win2a), "r"(bufa), "r"(sum1a), "r"(sum2a)
+ );
+
+#undef MULT
+}
+
+static void apply_window_mp3(float *in, float *win, int *unused, float *out,
+ ptrdiff_t incr)
+{
+ LOCAL_ALIGNED_16(float, suma, [17]);
+ LOCAL_ALIGNED_16(float, sumb, [17]);
+ LOCAL_ALIGNED_16(float, sumc, [17]);
+ LOCAL_ALIGNED_16(float, sumd, [17]);
+
+ float sum;
+
+ /* copy to avoid wrap */
+ __asm__ volatile(
+ "movaps 0(%0), %%xmm0 \n\t" \
+ "movaps 16(%0), %%xmm1 \n\t" \
+ "movaps 32(%0), %%xmm2 \n\t" \
+ "movaps 48(%0), %%xmm3 \n\t" \
+ "movaps %%xmm0, 0(%1) \n\t" \
+ "movaps %%xmm1, 16(%1) \n\t" \
+ "movaps %%xmm2, 32(%1) \n\t" \
+ "movaps %%xmm3, 48(%1) \n\t" \
+ "movaps 64(%0), %%xmm0 \n\t" \
+ "movaps 80(%0), %%xmm1 \n\t" \
+ "movaps 96(%0), %%xmm2 \n\t" \
+ "movaps 112(%0), %%xmm3 \n\t" \
+ "movaps %%xmm0, 64(%1) \n\t" \
+ "movaps %%xmm1, 80(%1) \n\t" \
+ "movaps %%xmm2, 96(%1) \n\t" \
+ "movaps %%xmm3, 112(%1) \n\t"
+ ::"r"(in), "r"(in+512)
+ :"memory"
+ );
+
+ apply_window(in + 16, win , win + 512, suma, sumc, 16);
+ apply_window(in + 32, win + 48, win + 640, sumb, sumd, 16);
+
+ SUM8(MACS, suma[0], win + 32, in + 48);
+
+ sumc[ 0] = 0;
+ sumb[16] = 0;
+ sumd[16] = 0;
+
+#define SUMS(suma, sumb, sumc, sumd, out1, out2) \
+ "movups " #sumd "(%4), %%xmm0 \n\t" \
+ "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \
+ "subps " #suma "(%1), %%xmm0 \n\t" \
+ "movaps %%xmm0," #out1 "(%0) \n\t" \
+\
+ "movups " #sumc "(%3), %%xmm0 \n\t" \
+ "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \
+ "addps " #sumb "(%2), %%xmm0 \n\t" \
+ "movaps %%xmm0," #out2 "(%0) \n\t"
+
+ if (incr == 1) {
+ __asm__ volatile(
+ SUMS( 0, 48, 4, 52, 0, 112)
+ SUMS(16, 32, 20, 36, 16, 96)
+ SUMS(32, 16, 36, 20, 32, 80)
+ SUMS(48, 0, 52, 4, 48, 64)
+
+ :"+&r"(out)
+ :"r"(&suma[0]), "r"(&sumb[0]), "r"(&sumc[0]), "r"(&sumd[0])
+ :"memory"
+ );
+ out += 16*incr;
+ } else {
+ int j;
+ float *out2 = out + 32 * incr;
+ out[0 ] = -suma[ 0];
+ out += incr;
+ out2 -= incr;
+ for(j=1;j<16;j++) {
+ *out = -suma[ j] + sumd[16-j];
+ *out2 = sumb[16-j] + sumc[ j];
+ out += incr;
+ out2 -= incr;
+ }
+ }
+
+ sum = 0;
+ SUM8(MLSS, sum, win + 16 + 32, in + 32);
+ *out = sum;
+}
+
+#endif /* HAVE_6REGS && HAVE_SSE_INLINE */
+
+#if HAVE_X86ASM
+#define DECL_IMDCT_BLOCKS(CPU1, CPU2) \
+static void imdct36_blocks_ ## CPU1(float *out, float *buf, float *in, \
+ int count, int switch_point, int block_type) \
+{ \
+ int align_end = count - (count & 3); \
+ int j; \
+ for (j = 0; j < align_end; j+= 4) { \
+ LOCAL_ALIGNED_16(float, tmpbuf, [1024]); \
+ float *win = mdct_win_sse[switch_point && j < 4][block_type]; \
+ /* apply window & overlap with previous buffer */ \
+ \
+ /* select window */ \
+ ff_four_imdct36_float_ ## CPU2(out, buf, in, win, tmpbuf); \
+ in += 4*18; \
+ buf += 4*18; \
+ out += 4; \
+ } \
+ for (; j < count; j++) { \
+ /* apply window & overlap with previous buffer */ \
+ \
+ /* select window */ \
+ int win_idx = (switch_point && j < 2) ? 0 : block_type; \
+ float *win = ff_mdct_win_float[win_idx + (4 & -(j & 1))]; \
+ \
+ ff_imdct36_float_ ## CPU1(out, buf, in, win); \
+ \
+ in += 18; \
+ buf++; \
+ out++; \
+ } \
+}
+
+#if HAVE_SSE
+DECL_IMDCT_BLOCKS(sse2,sse)
+DECL_IMDCT_BLOCKS(sse3,sse)
+DECL_IMDCT_BLOCKS(ssse3,sse)
+#endif
+#if HAVE_AVX_EXTERNAL
+DECL_IMDCT_BLOCKS(avx,avx)
+#endif
+#endif /* HAVE_X86ASM */
+
+av_cold void ff_mpadsp_init_x86_tabs(void)
+{
+ int i, j;
+ for (j = 0; j < 4; j++) {
+ for (i = 0; i < 40; i ++) {
+ mdct_win_sse[0][j][4*i ] = ff_mdct_win_float[j ][i];
+ mdct_win_sse[0][j][4*i + 1] = ff_mdct_win_float[j + 4][i];
+ mdct_win_sse[0][j][4*i + 2] = ff_mdct_win_float[j ][i];
+ mdct_win_sse[0][j][4*i + 3] = ff_mdct_win_float[j + 4][i];
+ mdct_win_sse[1][j][4*i ] = ff_mdct_win_float[0 ][i];
+ mdct_win_sse[1][j][4*i + 1] = ff_mdct_win_float[4 ][i];
+ mdct_win_sse[1][j][4*i + 2] = ff_mdct_win_float[j ][i];
+ mdct_win_sse[1][j][4*i + 3] = ff_mdct_win_float[j + 4][i];
+ }
+ }
+}
+
+av_cold void ff_mpadsp_init_x86(MPADSPContext *s)
+{
+ av_unused int cpu_flags = av_get_cpu_flags();
+
+#if HAVE_6REGS && HAVE_SSE_INLINE
+ if (INLINE_SSE(cpu_flags)) {
+ s->apply_window_float = apply_window_mp3;
+ }
+#endif /* HAVE_SSE_INLINE */
+
+#if HAVE_X86ASM
+#if HAVE_SSE
+ if (EXTERNAL_SSE2(cpu_flags)) {
+ s->imdct36_blocks_float = imdct36_blocks_sse2;
+ }
+ if (EXTERNAL_SSE3(cpu_flags)) {
+ s->imdct36_blocks_float = imdct36_blocks_sse3;
+ }
+ if (EXTERNAL_SSSE3(cpu_flags)) {
+ s->imdct36_blocks_float = imdct36_blocks_ssse3;
+ }
+#endif
+#if HAVE_AVX_EXTERNAL
+ if (EXTERNAL_AVX(cpu_flags)) {
+ s->imdct36_blocks_float = imdct36_blocks_avx;
+ }
+#endif
+#endif /* HAVE_X86ASM */
+}
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