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cleanup 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3550 b3059339-0415-0410-9bf9-f77b7e298cf2
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michael 2001-12-17 00:59:44 +00:00
parent 7943ed6f42
commit b5f22afc63
1 changed files with 95 additions and 162 deletions
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253
liba52/imdct.c
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@ -231,21 +231,34 @@ imdct_do_512(sample_t data[],sample_t delay[], sample_t bias)
/* FFT Merge */
#ifdef HAVE_SSE
// Note w[0][0]={1,0}
// C Code for the following asm loop
/* for(i = 0; i < 128; i += 2) {
p = 0 + i;
q = p + 1;
/* unoptimized variant
for (m=1; m < 7; m++) {
if(m)
two_m = (1 << m);
else
two_m = 1;
two_m_plus_one = (1 << (m+1));
for(i = 0; i < 128; i += two_m_plus_one) {
for(k = 0; k < two_m; k++) {
p = k + i;
q = p + two_m;
tmp_a_r = buf[p].real;
tmp_a_i = buf[p].imag;
tmp_b_r = buf[q].real;
tmp_b_i = buf[q].imag;
tmp_b_r = buf[q].real * w[m][k].real - buf[q].imag * w[m][k].imag;
tmp_b_i = buf[q].imag * w[m][k].real + buf[q].real * w[m][k].imag;
buf[p].real = tmp_a_r + tmp_b_r;
buf[p].imag = tmp_a_i + tmp_b_i;
buf[q].real = tmp_a_r - tmp_b_r;
buf[q].imag = tmp_a_i - tmp_b_i;
}*/
}
}
}
*/
#ifdef HAVE_SSE
// Note w[0][0]={1,0}
asm volatile(
"xorps %%xmm1, %%xmm1 \n\t"
"xorps %%xmm2, %%xmm2 \n\t"
@ -265,30 +278,21 @@ imdct_do_512(sample_t data[],sample_t delay[], sample_t bias)
:: "g" (buf), "r" (buf + 128)
: "%esi"
);
#else
for(i = 0; i < 128; i += 2) {
tmp_a_r = buf[i].real;
tmp_a_i = buf[i].imag;
tmp_b_r = buf[i+1].real;
tmp_b_i = buf[i+1].imag;
buf[i].real = tmp_a_r + tmp_b_r;
buf[i].imag = tmp_a_i + tmp_b_i;
buf[i+1].real = tmp_a_r - tmp_b_r;
buf[i+1].imag = tmp_a_i - tmp_b_i;
}
#endif
// Note w[1]={{1,0}, {0,-1}}
// C Code for the following asm loop
/* for(i = 0; i < 128; i += 4) {
p = 0 + i;
q = p + 2;
tmp_a_r = buf[p].real;
tmp_a_i = buf[p].imag;
tmp_b_r = buf[q].real;
tmp_b_i = buf[q].imag;
buf[p].real = tmp_a_r + tmp_b_r;
buf[p].imag = tmp_a_i + tmp_b_i;
buf[q].real = tmp_a_r - tmp_b_r;
buf[q].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[p+1].real;
tmp_a_i = buf[p+1].imag;
tmp_b_r = buf[q+1].imag;
tmp_b_i = buf[q+1].real;
buf[p+1].real = tmp_a_r + tmp_b_r;
buf[p+1].imag = tmp_a_i - tmp_b_i;
buf[q+1].real = tmp_a_r - tmp_b_r;
buf[q+1].imag = tmp_a_i + tmp_b_i;
}
*/
#ifdef HAVE_SSE
asm volatile(
"movaps ps111_1, %%xmm7 \n\t" // 1,1,1,-1
"movl %0, %%esi \n\t"
@ -309,22 +313,28 @@ imdct_do_512(sample_t data[],sample_t delay[], sample_t bias)
:: "g" (buf), "r" (buf + 128)
: "%esi"
);
/* C code for the next asm loop
for(k = 0; k < 4; k++) {
for(i = 0; i < 128; i += 8) {
p = k + i;
q = p + 4;
tmp_a_r = buf[p].real;
tmp_a_i = buf[p].imag;
tmp_b_r = buf[q].real * w[2][k].real - buf[q].imag * w[2][k].imag;
tmp_b_i = buf[q].imag * w[2][k].real + buf[q].real * w[2][k].imag;
buf[p].real = tmp_a_r + tmp_b_r;
buf[p].imag = tmp_a_i + tmp_b_i;
buf[q].real = tmp_a_r - tmp_b_r;
buf[q].imag = tmp_a_i - tmp_b_i;
#else
for(i = 0; i < 128; i += 4) {
tmp_a_r = buf[i].real;
tmp_a_i = buf[i].imag;
tmp_b_r = buf[i+2].real;
tmp_b_i = buf[i+2].imag;
buf[i].real = tmp_a_r + tmp_b_r;
buf[i].imag = tmp_a_i + tmp_b_i;
buf[i+2].real = tmp_a_r - tmp_b_r;
buf[i+2].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[i+1].real;
tmp_a_i = buf[i+1].imag;
tmp_b_r = buf[i+3].imag;
tmp_b_i = buf[i+3].real;
buf[i+1].real = tmp_a_r + tmp_b_r;
buf[i+1].imag = tmp_a_i - tmp_b_i;
buf[i+3].real = tmp_a_r - tmp_b_r;
buf[i+3].imag = tmp_a_i + tmp_b_i;
}
}
*/
#endif
#ifdef HAVE_SSE
/*
Note sseW2+0={1,1,sqrt(2),sqrt(2))
Note sseW2+16={0,0,sqrt(2),-sqrt(2))
@ -369,29 +379,44 @@ imdct_do_512(sample_t data[],sample_t delay[], sample_t bias)
:: "g" (buf), "r" (buf + 128)
: "%esi"
);
/* C version of the following asm loop
for (m=3; m < 7; m++) {
two_m = (1 << m);
two_m_plus_one = two_m<<1;
for(i = 0; i < 128; i += two_m_plus_one) {
for(k = 0; k < two_m; k++) {
int p = k + i;
int q = p + two_m;
tmp_a_r = buf[p].real;
tmp_a_i = buf[p].imag;
tmp_b_r = buf[q].real * w[m][k].real - buf[q].imag * w[m][k].imag;
tmp_b_i = buf[q].imag * w[m][k].real + buf[q].real * w[m][k].imag;
buf[p].real = tmp_a_r + tmp_b_r;
buf[p].imag = tmp_a_i + tmp_b_i;
buf[q].real = tmp_a_r - tmp_b_r;
buf[q].imag = tmp_a_i - tmp_b_i;
#else
for(i = 0; i < 128; i += 8) {
tmp_a_r = buf[i].real;
tmp_a_i = buf[i].imag;
tmp_b_r = buf[i+4].real;
tmp_b_i = buf[i+4].imag;
buf[i].real = tmp_a_r + tmp_b_r;
buf[i].imag = tmp_a_i + tmp_b_i;
buf[i+4].real = tmp_a_r - tmp_b_r;
buf[i+4].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[1+i].real;
tmp_a_i = buf[1+i].imag;
tmp_b_r = (buf[i+5].real + buf[i+5].imag) * w[2][1].real;
tmp_b_i = (buf[i+5].imag - buf[i+5].real) * w[2][1].real;
buf[1+i].real = tmp_a_r + tmp_b_r;
buf[1+i].imag = tmp_a_i + tmp_b_i;
buf[i+5].real = tmp_a_r - tmp_b_r;
buf[i+5].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[i+2].real;
tmp_a_i = buf[i+2].imag;
tmp_b_r = buf[i+6].imag;
tmp_b_i = - buf[i+6].real;
buf[i+2].real = tmp_a_r + tmp_b_r;
buf[i+2].imag = tmp_a_i + tmp_b_i;
buf[i+6].real = tmp_a_r - tmp_b_r;
buf[i+6].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[i+3].real;
tmp_a_i = buf[i+3].imag;
tmp_b_r = (buf[i+7].real - buf[i+7].imag) * w[2][3].imag;
tmp_b_i = (buf[i+7].imag + buf[i+7].real) * w[2][3].imag;
buf[i+3].real = tmp_a_r + tmp_b_r;
buf[i+3].imag = tmp_a_i + tmp_b_i;
buf[i+7].real = tmp_a_r - tmp_b_r;
buf[i+7].imag = tmp_a_i - tmp_b_i;
}
}
}
*/
#endif
#ifdef HAVE_SSE
for (m=3; m < 7; m++) {
two_m = (1 << m);
two_m_plus_one = two_m<<1;
@ -427,97 +452,6 @@ imdct_do_512(sample_t data[],sample_t delay[], sample_t bias)
}
#else
/* unoptimized variant
for (m=1; m < 7; m++) {
if(m)
two_m = (1 << m);
else
two_m = 1;
two_m_plus_one = (1 << (m+1));
for(i = 0; i < 128; i += two_m_plus_one) {
for(k = 0; k < two_m; k++) {
p = k + i;
q = p + two_m;
tmp_a_r = buf[p].real;
tmp_a_i = buf[p].imag;
tmp_b_r = buf[q].real * w[m][k].real - buf[q].imag * w[m][k].imag;
tmp_b_i = buf[q].imag * w[m][k].real + buf[q].real * w[m][k].imag;
buf[p].real = tmp_a_r + tmp_b_r;
buf[p].imag = tmp_a_i + tmp_b_i;
buf[q].real = tmp_a_r - tmp_b_r;
buf[q].imag = tmp_a_i - tmp_b_i;
}
}
}
*/
for(i = 0; i < 128; i += 2) {
tmp_a_r = buf[i].real;
tmp_a_i = buf[i].imag;
tmp_b_r = buf[i+1].real;
tmp_b_i = buf[i+1].imag;
buf[i].real = tmp_a_r + tmp_b_r;
buf[i].imag = tmp_a_i + tmp_b_i;
buf[i+1].real = tmp_a_r - tmp_b_r;
buf[i+1].imag = tmp_a_i - tmp_b_i;
}
for(i = 0; i < 128; i += 4) {
tmp_a_r = buf[i].real;
tmp_a_i = buf[i].imag;
tmp_b_r = buf[i+2].real;
tmp_b_i = buf[i+2].imag;
buf[i].real = tmp_a_r + tmp_b_r;
buf[i].imag = tmp_a_i + tmp_b_i;
buf[i+2].real = tmp_a_r - tmp_b_r;
buf[i+2].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[i+1].real;
tmp_a_i = buf[i+1].imag;
tmp_b_r = buf[i+3].imag;
tmp_b_i = buf[i+3].real;
buf[i+1].real = tmp_a_r + tmp_b_r;
buf[i+1].imag = tmp_a_i - tmp_b_i;
buf[i+3].real = tmp_a_r - tmp_b_r;
buf[i+3].imag = tmp_a_i + tmp_b_i;
}
for(i = 0; i < 128; i += 8) {
tmp_a_r = buf[i].real;
tmp_a_i = buf[i].imag;
tmp_b_r = buf[i+4].real;
tmp_b_i = buf[i+4].imag;
buf[i].real = tmp_a_r + tmp_b_r;
buf[i].imag = tmp_a_i + tmp_b_i;
buf[i+4].real = tmp_a_r - tmp_b_r;
buf[i+4].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[1+i].real;
tmp_a_i = buf[1+i].imag;
tmp_b_r = (buf[i+5].real + buf[i+5].imag) * w[2][1].real;
tmp_b_i = (buf[i+5].imag - buf[i+5].real) * w[2][1].real;
buf[1+i].real = tmp_a_r + tmp_b_r;
buf[1+i].imag = tmp_a_i + tmp_b_i;
buf[i+5].real = tmp_a_r - tmp_b_r;
buf[i+5].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[i+2].real;
tmp_a_i = buf[i+2].imag;
tmp_b_r = buf[i+6].imag;
tmp_b_i = - buf[i+6].real;
buf[i+2].real = tmp_a_r + tmp_b_r;
buf[i+2].imag = tmp_a_i + tmp_b_i;
buf[i+6].real = tmp_a_r - tmp_b_r;
buf[i+6].imag = tmp_a_i - tmp_b_i;
tmp_a_r = buf[i+3].real;
tmp_a_i = buf[i+3].imag;
tmp_b_r = (buf[i+7].real - buf[i+7].imag) * w[2][3].imag;
tmp_b_i = (buf[i+7].imag + buf[i+7].real) * w[2][3].imag;
buf[i+3].real = tmp_a_r + tmp_b_r;
buf[i+3].imag = tmp_a_i + tmp_b_i;
buf[i+7].real = tmp_a_r - tmp_b_r;
buf[i+7].imag = tmp_a_i - tmp_b_i;
}
for (m=3; m < 7; m++) {
two_m = (1 << m);
@ -538,7 +472,6 @@ imdct_do_512(sample_t data[],sample_t delay[], sample_t bias)
}
}
}
#endif
/* Post IFFT complex multiply plus IFFT complex conjugate*/