3eda462807
Programs: fasm updated to 1.67.14, small fixes in desktop, stackcfg, calc, board, pipes, freecell, big cleanup of unused programs, added some applications from 0.6.3.0 distr... git-svn-id: svn://kolibrios.org@205 a494cfbc-eb01-0410-851d-a64ba20cac60
428 lines
9.1 KiB
C
428 lines
9.1 KiB
C
extern float wincoef[264];
|
|
|
|
void windowB(float *vbuf, int vb_ptr, unsigned char *pcm)
|
|
{
|
|
int i, j;
|
|
int si, bx;
|
|
float *coef;
|
|
float sum;
|
|
long tmp;
|
|
|
|
si = vb_ptr + 16;
|
|
bx = (si + 32) & 511;
|
|
coef = wincoef;
|
|
|
|
/*-- first 16 --*/
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[si];
|
|
si = (si + 64) & 511;
|
|
sum -= (*coef++) * vbuf[bx];
|
|
bx = (bx + 64) & 511;
|
|
}
|
|
si++;
|
|
bx--;
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
}
|
|
/*-- special case --*/
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[bx];
|
|
bx = (bx + 64) & 511;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
/*-- last 15 --*/
|
|
coef = wincoef + 255; /* back pass through coefs */
|
|
for (i = 0; i < 15; i++)
|
|
{
|
|
si--;
|
|
bx++;
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef--) * vbuf[si];
|
|
si = (si + 64) & 511;
|
|
sum += (*coef--) * vbuf[bx];
|
|
bx = (bx + 64) & 511;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
}
|
|
}
|
|
/*------------------------------------------------------------*/
|
|
void windowB_dual(float *vbuf, int vb_ptr, unsigned char *pcm)
|
|
{
|
|
int i, j; /* dual window interleaves output */
|
|
int si, bx;
|
|
float *coef;
|
|
float sum;
|
|
long tmp;
|
|
|
|
si = vb_ptr + 16;
|
|
bx = (si + 32) & 511;
|
|
coef = wincoef;
|
|
|
|
/*-- first 16 --*/
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[si];
|
|
si = (si + 64) & 511;
|
|
sum -= (*coef++) * vbuf[bx];
|
|
bx = (bx + 64) & 511;
|
|
}
|
|
si++;
|
|
bx--;
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
}
|
|
/*-- special case --*/
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[bx];
|
|
bx = (bx + 64) & 511;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
/*-- last 15 --*/
|
|
coef = wincoef + 255; /* back pass through coefs */
|
|
for (i = 0; i < 15; i++)
|
|
{
|
|
si--;
|
|
bx++;
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef--) * vbuf[si];
|
|
si = (si + 64) & 511;
|
|
sum += (*coef--) * vbuf[bx];
|
|
bx = (bx + 64) & 511;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
}
|
|
}
|
|
/*------------------------------------------------------------*/
|
|
/*------------------- 16 pt window ------------------------------*/
|
|
void windowB16(float *vbuf, int vb_ptr, unsigned char *pcm)
|
|
{
|
|
int i, j;
|
|
unsigned char si, bx;
|
|
float *coef;
|
|
float sum;
|
|
long tmp;
|
|
|
|
si = vb_ptr + 8;
|
|
bx = si + 16;
|
|
coef = wincoef;
|
|
|
|
/*-- first 8 --*/
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[si];
|
|
si += 32;
|
|
sum -= (*coef++) * vbuf[bx];
|
|
bx += 32;
|
|
}
|
|
si++;
|
|
bx--;
|
|
coef += 16;
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
}
|
|
/*-- special case --*/
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[bx];
|
|
bx += 32;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
/*-- last 7 --*/
|
|
coef = wincoef + 255; /* back pass through coefs */
|
|
for (i = 0; i < 7; i++)
|
|
{
|
|
coef -= 16;
|
|
si--;
|
|
bx++;
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef--) * vbuf[si];
|
|
si += 32;
|
|
sum += (*coef--) * vbuf[bx];
|
|
bx += 32;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
}
|
|
}
|
|
/*--------------- 16 pt dual window (interleaved output) -----------------*/
|
|
void windowB16_dual(float *vbuf, int vb_ptr, unsigned char *pcm)
|
|
{
|
|
int i, j;
|
|
unsigned char si, bx;
|
|
float *coef;
|
|
float sum;
|
|
long tmp;
|
|
|
|
si = vb_ptr + 8;
|
|
bx = si + 16;
|
|
coef = wincoef;
|
|
|
|
/*-- first 8 --*/
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[si];
|
|
si += 32;
|
|
sum -= (*coef++) * vbuf[bx];
|
|
bx += 32;
|
|
}
|
|
si++;
|
|
bx--;
|
|
coef += 16;
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
}
|
|
/*-- special case --*/
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[bx];
|
|
bx += 32;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
/*-- last 7 --*/
|
|
coef = wincoef + 255; /* back pass through coefs */
|
|
for (i = 0; i < 7; i++)
|
|
{
|
|
coef -= 16;
|
|
si--;
|
|
bx++;
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef--) * vbuf[si];
|
|
si += 32;
|
|
sum += (*coef--) * vbuf[bx];
|
|
bx += 32;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
}
|
|
}
|
|
/*------------------- 8 pt window ------------------------------*/
|
|
void windowB8(float *vbuf, int vb_ptr, unsigned char *pcm)
|
|
{
|
|
int i, j;
|
|
int si, bx;
|
|
float *coef;
|
|
float sum;
|
|
long tmp;
|
|
|
|
si = vb_ptr + 4;
|
|
bx = (si + 8) & 127;
|
|
coef = wincoef;
|
|
|
|
/*-- first 4 --*/
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[si];
|
|
si = (si + 16) & 127;
|
|
sum -= (*coef++) * vbuf[bx];
|
|
bx = (bx + 16) & 127;
|
|
}
|
|
si++;
|
|
bx--;
|
|
coef += 48;
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
}
|
|
/*-- special case --*/
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[bx];
|
|
bx = (bx + 16) & 127;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
/*-- last 3 --*/
|
|
coef = wincoef + 255; /* back pass through coefs */
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
coef -= 48;
|
|
si--;
|
|
bx++;
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef--) * vbuf[si];
|
|
si = (si + 16) & 127;
|
|
sum += (*coef--) * vbuf[bx];
|
|
bx = (bx + 16) & 127;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm++ = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
}
|
|
}
|
|
/*--------------- 8 pt dual window (interleaved output) -----------------*/
|
|
void windowB8_dual(float *vbuf, int vb_ptr, unsigned char *pcm)
|
|
{
|
|
int i, j;
|
|
int si, bx;
|
|
float *coef;
|
|
float sum;
|
|
long tmp;
|
|
|
|
si = vb_ptr + 4;
|
|
bx = (si + 8) & 127;
|
|
coef = wincoef;
|
|
|
|
/*-- first 4 --*/
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[si];
|
|
si = (si + 16) & 127;
|
|
sum -= (*coef++) * vbuf[bx];
|
|
bx = (bx + 16) & 127;
|
|
}
|
|
si++;
|
|
bx--;
|
|
coef += 48;
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
}
|
|
/*-- special case --*/
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef++) * vbuf[bx];
|
|
bx = (bx + 16) & 127;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
/*-- last 3 --*/
|
|
coef = wincoef + 255; /* back pass through coefs */
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
coef -= 48;
|
|
si--;
|
|
bx++;
|
|
sum = 0.0F;
|
|
for (j = 0; j < 8; j++)
|
|
{
|
|
sum += (*coef--) * vbuf[si];
|
|
si = (si + 16) & 127;
|
|
sum += (*coef--) * vbuf[bx];
|
|
bx = (bx + 16) & 127;
|
|
}
|
|
tmp = (long) sum;
|
|
if (tmp > 32767)
|
|
tmp = 32767;
|
|
else if (tmp < -32768)
|
|
tmp = -32768;
|
|
*pcm = ((unsigned char) (tmp >> 8)) ^ 0x80;
|
|
pcm += 2;
|
|
}
|
|
}
|