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Introduce macros for identical multiply-add blocks.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27535 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann 2010-07-23 22:06:45 +00:00
parent 5297db9904
commit 7c33e1b4fe
1 changed files with 19 additions and 59 deletions
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78
apps/codecs/libatrac/atrac3.c
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@ -125,6 +125,16 @@ static channel_unit channel_units[2] IBSS_ATTR_LARGE_IRAM;
int32_t *win,
unsigned int nIn);
#else
#define MULTIPLY_ADD_BLOCK(y1, y2, x, c, k) \
y1 += fixmul31(c[k], x[k]); k++; \
y2 += fixmul31(c[k], x[k]); k++; \
y1 += fixmul31(c[k], x[k]); k++; \
y2 += fixmul31(c[k], x[k]); k++; \
y1 += fixmul31(c[k], x[k]); k++; \
y2 += fixmul31(c[k], x[k]); k++; \
y1 += fixmul31(c[k], x[k]); k++; \
y2 += fixmul31(c[k], x[k]); k++;
static inline void
atrac3_iqmf_dewindowing(int32_t *out,
int32_t *in,
@ -133,68 +143,18 @@ static channel_unit channel_units[2] IBSS_ATTR_LARGE_IRAM;
{
int32_t i, j, s1, s2;
for (j = nIn; j != 0; j--) {
i = 0;
/* 0.. 7 */
s1 = fixmul31(win[i], in[i]); i++;
s2 = fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
/* 8..15 */
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
/* 16..23 */
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
/* 24..31 */
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
/* 32..39 */
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
/* 40..47 */
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]); i++;
s1 += fixmul31(win[i], in[i]); i++;
s2 += fixmul31(win[i], in[i]);
for (j = nIn; j != 0; j--, in+=2, out+=2) {
s1 = s2 = i = 0;
MULTIPLY_ADD_BLOCK(s1, s2, in, win, i); /* 0.. 7 */
MULTIPLY_ADD_BLOCK(s1, s2, in, win, i); /* 8..15 */
MULTIPLY_ADD_BLOCK(s1, s2, in, win, i); /* 16..23 */
MULTIPLY_ADD_BLOCK(s1, s2, in, win, i); /* 24..31 */
MULTIPLY_ADD_BLOCK(s1, s2, in, win, i); /* 32..39 */
MULTIPLY_ADD_BLOCK(s1, s2, in, win, i); /* 40..47 */
out[0] = s2;
out[1] = s1;
in += 2;
out += 2;
}
}
#endif