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EMACify HE-AAC QMF on coldfire: 5% speedup on MCF5249.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27381 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2010-07-11 13:44:41 +00:00
parent 6cf66eb08c
commit 12857cedfa
2 changed files with 54 additions and 20 deletions
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2
apps/codecs/libfaad/iq_table.h
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@ -8243,6 +8243,8 @@ ALIGN static const real_t iq_table[IQ_TABLE_SIZE] =
#else
#define BIG_IQ_TABLE /* using BIG_IQ_TABLE creates faster code */
#ifdef BIG_IQ_TABLE
#define IQ_TABLE_SIZE 8192
#else

66
apps/codecs/libfaad/sbr_qmf.c
View file

@ -512,23 +512,7 @@ void sbr_qmf_synthesis_64(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][6
p_buf_1 = qmfs->v + qmfs->v_index;
/* calculate 64 output samples and window */
#if !defined(CPU_ARM)
for (k = 0; k < 64; k++)
{
idx0 = k*10;
output[out++] = FAAD_SYNTHESIS_SCALE(
MUL_F(p_buf_1[k ], qmf_c[idx0 ]) +
MUL_F(p_buf_1[k+ 192 ], qmf_c[idx0+1]) +
MUL_F(p_buf_1[k+ 256 ], qmf_c[idx0+2]) +
MUL_F(p_buf_1[k+ 256+192], qmf_c[idx0+3]) +
MUL_F(p_buf_1[k+ 512 ], qmf_c[idx0+4]) +
MUL_F(p_buf_1[k+ 512+192], qmf_c[idx0+5]) +
MUL_F(p_buf_1[k+ 768 ], qmf_c[idx0+6]) +
MUL_F(p_buf_1[k+ 768+192], qmf_c[idx0+7]) +
MUL_F(p_buf_1[k+1024 ], qmf_c[idx0+8]) +
MUL_F(p_buf_1[k+1024+192], qmf_c[idx0+9]));
}
#else
#ifdef CPU_ARM
const real_t *qtab = qmf_c;
real_t *pbuf = p_buf_1;
for (k = 0; k < 64; k++, pbuf++)
@ -568,6 +552,54 @@ void sbr_qmf_synthesis_64(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][6
: [pbuf] "r" (pbuf), [pout] "r" (pout)
: "r0", "r1", "r2", "r3", "r4", "r5", "r6", "memory");
}
#elif defined CPU_COLDFIRE
const real_t *qtab = qmf_c;
real_t *pbuf = p_buf_1;
for (k = 0; k < 64; k++, pbuf++)
{
real_t *pout = &output[out++];
asm volatile (
"move.l (%[pbuf]), %%d5 \n"
"movem.l (%[qtab]), %%d0-%%d4 \n"
"mac.l %%d0, %%d5, (192*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d1, %%d5, (256*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d2, %%d5, (448*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d3, %%d5, (512*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d4, %%d5, (704*4, %[pbuf]), %%d5, %%acc0 \n"
"lea.l (20, %[qtab]), %[qtab] \n"
"movem.l (%[qtab]), %%d0-%%d4 \n"
"mac.l %%d0, %%d5, (768*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d1, %%d5, (960*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d2, %%d5, (1024*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d3, %%d5, (1216*4, %[pbuf]), %%d5, %%acc0 \n"
"mac.l %%d4, %%d5, %%acc0 \n"
"lea.l (20, %[qtab]), %[qtab] \n"
"movclr.l %%acc0, %%d0 \n"
"move.l %%d0, (%[pout]) \n"
: [qtab] "+a" (qtab)
: [pbuf] "a" (pbuf),
[pout] "a" (pout)
: "d0", "d1", "d2", "d3", "d4", "d5", "memory");
}
#else
for (k = 0; k < 64; k++)
{
idx0 = k*10;
output[out++] = FAAD_SYNTHESIS_SCALE(
MUL_F(p_buf_1[k ], qmf_c[idx0 ]) +
MUL_F(p_buf_1[k+ 192 ], qmf_c[idx0+1]) +
MUL_F(p_buf_1[k+ 256 ], qmf_c[idx0+2]) +
MUL_F(p_buf_1[k+ 256+192], qmf_c[idx0+3]) +
MUL_F(p_buf_1[k+ 512 ], qmf_c[idx0+4]) +
MUL_F(p_buf_1[k+ 512+192], qmf_c[idx0+5]) +
MUL_F(p_buf_1[k+ 768 ], qmf_c[idx0+6]) +
MUL_F(p_buf_1[k+ 768+192], qmf_c[idx0+7]) +
MUL_F(p_buf_1[k+1024 ], qmf_c[idx0+8]) +
MUL_F(p_buf_1[k+1024+192], qmf_c[idx0+9]));
}
#endif
/* update ringbuffer index */