void timeTravel(void)
{
if(is_pressed(BUTTON_B + BUTTON_DR))
{
ADD64(g_savetime, 0x34630B8A000);
ADD64(g_realtime, 0x34630B8A000);
wait_keys_released(DR);
}
if(is_pressed(BUTTON_B + BUTTON_DL))
{
SUB64(g_savetime, 0x34630B8A000);
SUB64(g_realtime, 0x34630B8A000);
wait_keys_released(DL);
}
if(is_pressed(BUTTON_B + BUTTON_DD))
{
WRITES64(g_savetime, 0x0000000000000000);
WRITES64(g_realtime, 0x0000000000000000);
}
if(is_pressed(BUTTON_R + BUTTON_DR))
{
ADD64(g_savetime, 0xdf8475800);
ADD64(g_realtime, 0xdf8475800);
}
if(is_pressed(BUTTON_R + BUTTON_DL))
{
SUB64(g_savetime, 0xdf8475800);
SUB64(g_realtime, 0xdf8475800);
}
}
static inline void g64(uint64_t *a, uint64_t *b, uint64_t *c, uint64_t *d, uint32_t round, uint32_t i, uint64_t m[16]) {
*a = ADD64((*a),(*b))+XOR64(m[sigma[round%10][2*i]], c512[sigma[round%10][2*i+1]]);
*d = ROT64(XOR64((*d),(*a)),32);
*c = ADD64((*c),(*d));
*b = ROT64(XOR64((*b),(*c)),25);
*a = ADD64((*a),(*b))+XOR64(m[sigma[round%10][2*i+1]], c512[sigma[round%10][2*i]]);
*d = ROT64(XOR64((*d),(*a)),16);
*c = ADD64((*c),(*d));
*b = ROT64(XOR64((*b),(*c)),11);
}
/** Finds the best quantized 3-tap pitch predictor by analysis by synthesis */
static spx_word64_t pitch_gain_search_3tap(
const spx_sig_t target[], /* Target vector */
const spx_coef_t ak[], /* LPCs for this subframe */
const spx_coef_t awk1[], /* Weighted LPCs #1 for this subframe */
const spx_coef_t awk2[], /* Weighted LPCs #2 for this subframe */
spx_sig_t exc[], /* Excitation */
const void *par,
int pitch, /* Pitch value */
int p, /* Number of LPC coeffs */
int nsf, /* Number of samples in subframe */
SpeexBits *bits,
char *stack,
const spx_sig_t *exc2,
const spx_word16_t *r,
spx_sig_t *new_target,
int *cdbk_index,
int cdbk_offset,
int plc_tuning
)
{
int i,j;
VARDECL(spx_sig_t *tmp1);
VARDECL(spx_sig_t *tmp2);
spx_sig_t *x[3];
spx_sig_t *e[3];
spx_word32_t corr[3];
spx_word32_t A[3][3];
int gain_cdbk_size;
const signed char *gain_cdbk;
spx_word16_t gain[3];
spx_word64_t err;
const ltp_params *params;
params = (const ltp_params*) par;
gain_cdbk_size = 1<<params->gain_bits;
gain_cdbk = params->gain_cdbk + 3*gain_cdbk_size*cdbk_offset;
ALLOC(tmp1, 3*nsf, spx_sig_t);
ALLOC(tmp2, 3*nsf, spx_sig_t);
x[0]=tmp1;
x[1]=tmp1+nsf;
x[2]=tmp1+2*nsf;
e[0]=tmp2;
e[1]=tmp2+nsf;
e[2]=tmp2+2*nsf;
for (i=2; i>=0; i--)
{
int pp=pitch+1-i;
for (j=0; j<nsf; j++)
{
if (j-pp<0)
e[i][j]=exc2[j-pp];
else if (j-pp-pitch<0)
e[i][j]=exc2[j-pp-pitch];
else
e[i][j]=0;
}
if (i==2)
syn_percep_zero(e[i], ak, awk1, awk2, x[i], nsf, p, stack);
else {
for (j=0; j<nsf-1; j++)
x[i][j+1]=x[i+1][j];
x[i][0]=0;
for (j=0; j<nsf; j++)
{
x[i][j]=ADD32(x[i][j],SHL32(MULT16_32_Q15(r[j], e[i][0]),1));
}
}
}
#ifdef FIXED_POINT
{
/* If using fixed-point, we need to normalize the signals first */
spx_word16_t *y[3];
VARDECL(spx_word16_t *ytmp);
VARDECL(spx_word16_t *t);
spx_sig_t max_val=1;
int sig_shift;
ALLOC(ytmp, 3*nsf, spx_word16_t);
#if 0
ALLOC(y[0], nsf, spx_word16_t);
ALLOC(y[1], nsf, spx_word16_t);
ALLOC(y[2], nsf, spx_word16_t);
#else
y[0] = ytmp;
y[1] = ytmp+nsf;
y[2] = ytmp+2*nsf;
#endif
ALLOC(t, nsf, spx_word16_t);
for (j=0; j<3; j++)
{
for (i=0; i<nsf; i++)
{
spx_sig_t tmp = x[j][i];
if (tmp<0)
tmp = -tmp;
if (tmp > max_val)
max_val = tmp;
}
}
for (i=0; i<nsf; i++)
{
spx_sig_t tmp = target[i];
if (tmp<0)
tmp = -tmp;
if (tmp > max_val)
max_val = tmp;
}
sig_shift=0;
while (max_val>16384)
{
sig_shift++;
max_val >>= 1;
}
for (j=0; j<3; j++)
{
for (i=0; i<nsf; i++)
{
y[j][i] = EXTRACT16(SHR32(x[j][i],sig_shift));
}
}
for (i=0; i<nsf; i++)
{
t[i] = EXTRACT16(SHR32(target[i],sig_shift));
}
for (i=0; i<3; i++)
corr[i]=inner_prod(y[i],t,nsf);
for (i=0; i<3; i++)
for (j=0; j<=i; j++)
A[i][j]=A[j][i]=inner_prod(y[i],y[j],nsf);
}
#else
{
for (i=0; i<3; i++)
corr[i]=inner_prod(x[i],target,nsf);
for (i=0; i<3; i++)
for (j=0; j<=i; j++)
A[i][j]=A[j][i]=inner_prod(x[i],x[j],nsf);
}
#endif
{
spx_word32_t C[9];
const signed char *ptr=gain_cdbk;
int best_cdbk=0;
spx_word32_t best_sum=0;
C[0]=corr[2];
C[1]=corr[1];
C[2]=corr[0];
C[3]=A[1][2];
C[4]=A[0][1];
C[5]=A[0][2];
C[6]=A[2][2];
C[7]=A[1][1];
C[8]=A[0][0];
/*plc_tuning *= 2;*/
if (plc_tuning<2)
plc_tuning=2;
#ifdef FIXED_POINT
C[0] = MAC16_32_Q15(C[0],MULT16_16_16(plc_tuning,-327),C[0]);
C[1] = MAC16_32_Q15(C[1],MULT16_16_16(plc_tuning,-327),C[1]);
C[2] = MAC16_32_Q15(C[2],MULT16_16_16(plc_tuning,-327),C[2]);
#else
C[0]*=1-.01*plc_tuning;
C[1]*=1-.01*plc_tuning;
C[2]*=1-.01*plc_tuning;
C[6]*=.5*(1+.01*plc_tuning);
C[7]*=.5*(1+.01*plc_tuning);
C[8]*=.5*(1+.01*plc_tuning);
#endif
for (i=0; i<gain_cdbk_size; i++)
{
spx_word32_t sum=0;
spx_word16_t g0,g1,g2;
spx_word16_t pitch_control=64;
spx_word16_t gain_sum;
ptr = gain_cdbk+3*i;
g0=ADD16((spx_word16_t)ptr[0],32);
g1=ADD16((spx_word16_t)ptr[1],32);
g2=ADD16((spx_word16_t)ptr[2],32);
gain_sum = g1;
if (g0>0)
gain_sum += g0;
if (g2>0)
gain_sum += g2;
if (gain_sum > 64)
{
gain_sum = SUB16(gain_sum, 64);
if (gain_sum > 127)
gain_sum = 127;
#ifdef FIXED_POINT
pitch_control = SUB16(64,EXTRACT16(PSHR32(MULT16_16(64,MULT16_16_16(plc_tuning, gain_sum)),10)));
#else
pitch_control = 64*(1.-.001*plc_tuning*gain_sum);
#endif
if (pitch_control < 0)
pitch_control = 0;
}
sum = ADD32(sum,MULT16_32_Q14(MULT16_16_16(g0,pitch_control),C[0]));
sum = ADD32(sum,MULT16_32_Q14(MULT16_16_16(g1,pitch_control),C[1]));
sum = ADD32(sum,MULT16_32_Q14(MULT16_16_16(g2,pitch_control),C[2]));
sum = SUB32(sum,MULT16_32_Q14(MULT16_16_16(g0,g1),C[3]));
sum = SUB32(sum,MULT16_32_Q14(MULT16_16_16(g2,g1),C[4]));
sum = SUB32(sum,MULT16_32_Q14(MULT16_16_16(g2,g0),C[5]));
sum = SUB32(sum,MULT16_32_Q15(MULT16_16_16(g0,g0),C[6]));
sum = SUB32(sum,MULT16_32_Q15(MULT16_16_16(g1,g1),C[7]));
sum = SUB32(sum,MULT16_32_Q15(MULT16_16_16(g2,g2),C[8]));
/* We could force "safe" pitch values to handle packet loss better */
if (sum>best_sum || i==0)
{
best_sum=sum;
best_cdbk=i;
}
}
#ifdef FIXED_POINT
gain[0] = ADD16(32,(spx_word16_t)gain_cdbk[best_cdbk*3]);
gain[1] = ADD16(32,(spx_word16_t)gain_cdbk[best_cdbk*3+1]);
gain[2] = ADD16(32,(spx_word16_t)gain_cdbk[best_cdbk*3+2]);
/*printf ("%d %d %d %d\n",gain[0],gain[1],gain[2], best_cdbk);*/
#else
gain[0] = 0.015625*gain_cdbk[best_cdbk*3] + .5;
gain[1] = 0.015625*gain_cdbk[best_cdbk*3+1]+ .5;
gain[2] = 0.015625*gain_cdbk[best_cdbk*3+2]+ .5;
#endif
*cdbk_index=best_cdbk;
}
#ifdef FIXED_POINT
for (i=0; i<nsf; i++)
exc[i]=SHL32(ADD32(ADD32(MULT16_32_Q15(SHL16(gain[0],7),e[2][i]), MULT16_32_Q15(SHL16(gain[1],7),e[1][i])),
MULT16_32_Q15(SHL16(gain[2],7),e[0][i])), 2);
err=0;
for (i=0; i<nsf; i++)
{
spx_word16_t perr2;
spx_sig_t tmp = SHL32(ADD32(ADD32(MULT16_32_Q15(SHL16(gain[0],7),x[2][i]),MULT16_32_Q15(SHL16(gain[1],7),x[1][i])),
MULT16_32_Q15(SHL16(gain[2],7),x[0][i])),2);
spx_sig_t perr=SUB32(target[i],tmp);
new_target[i] = SUB32(target[i], tmp);
perr2 = EXTRACT16(PSHR32(perr,15));
err = ADD64(err,MULT16_16(perr2,perr2));
}
#else
for (i=0; i<nsf; i++)
exc[i]=gain[0]*e[2][i]+gain[1]*e[1][i]+gain[2]*e[0][i];
err=0;
for (i=0; i<nsf; i++)
{
spx_sig_t tmp = gain[2]*x[0][i]+gain[1]*x[1][i]+gain[0]*x[2][i];
new_target[i] = target[i] - tmp;
err+=new_target[i]*new_target[i];
}
#endif
return err;
}
void timeMachine(void)
{
u16 *id = (u16 *)g_id;
char yy_str[3] = { 0 };
char mm_str[3] = { 0 };
char dd_str[3] = { 0 };
char hh_str[3] = { 0 };
char mz_str[3] = { 0 };
s64 res_year = 0;
s64 res_month = 0;
s64 res_day = 0;
s64 res_hour = 0;
s64 res_min = 0;
s64 res_nansec = 0;
s64 res_plmn = 1;
if (is_pressed(BUTTON_Y + BUTTON_DR))
{
yy_str[0] = (char)READU8(id + 0);
yy_str[1] = (char)READU8(id + 1);
mm_str[0] = (char)READU8(id + 2);
mm_str[1] = (char)READU8(id + 3);
dd_str[0] = (char)READU8(id + 4);
dd_str[1] = (char)READU8(id + 5);
hh_str[0] = (char)READU8(id + 6);
hh_str[1] = (char)READU8(id + 7);
mz_str[0] = (char)READU8(id + 8);
mz_str[1] = (char)READU8(id + 9);
if ((char)READU8(id + 10) == 45) //minus
res_plmn = -1;
res_year = (s64)strtoul(yy_str, NULL, 16);
res_month = (s64)strtoul(mm_str, NULL, 16);
res_day = (s64)strtoul(dd_str, NULL, 16);
res_hour = (s64)strtoul(hh_str, NULL, 16);
res_min = (s64)strtoul(mz_str, NULL, 16);
res_year = res_year * (365 * 24 * 60 * 60) * (1000000000); //(year to seconds) * (seconds to nanoseconds)
res_month = res_month * (28 * 24 * 60 * 60) * (1000000000); //("month" to seconds) * (seconds to nanoseconds)
res_day = res_day * (24 * 60 * 60) * (1000000000); //(day to seconds) * (seconds to nanoseconds)
res_hour = res_hour * (60 * 60) * (1000000000); //(hour to seconds) * (seconds to nanoseconds)
res_min = res_min * (60) * (1000000000); //(minute to seconds) * (seconds to nanoseconds)
res_nansec = (res_year + res_month + res_day + res_hour + res_min) * res_plmn;
ADD64(g_savetime, res_nansec);
ADD64(g_realtime, res_nansec);
wait_keys_released(DR);
}
if (is_pressed(BUTTON_Y + BUTTON_DL))
{
yy_str[0] = (char)READU8(id + 0);
yy_str[1] = (char)READU8(id + 1);
mm_str[0] = (char)READU8(id + 2);
mm_str[1] = (char)READU8(id + 3);
dd_str[0] = (char)READU8(id + 4);
dd_str[1] = (char)READU8(id + 5);
hh_str[0] = (char)READU8(id + 6);
hh_str[1] = (char)READU8(id + 7);
mz_str[0] = (char)READU8(id + 8);
mz_str[1] = (char)READU8(id + 9);
if ((char)READU8(id + 10) == 45) //minus
res_plmn = -1;
res_year = (s64)strtoul(yy_str, NULL, 16);
res_month = (s64)strtoul(mm_str, NULL, 16);
res_day = (s64)strtoul(dd_str, NULL, 16);
res_hour = (s64)strtoul(hh_str, NULL, 16);
res_min = (s64)strtoul(mz_str, NULL, 16);
res_year = res_year * (365 * 24 * 60 * 60) * (1000000000); //(year to seconds) * (seconds to nanoseconds)
res_month = res_month * (28 * 24 * 60 * 60) * (1000000000); //("month" to seconds) * (seconds to nanoseconds)
res_day = res_day * (24 * 60 * 60) * (1000000000); //(day to seconds) * (seconds to nanoseconds)
res_hour = res_hour * (60 * 60) * (1000000000); //(hour to seconds) * (seconds to nanoseconds)
res_min = res_min * (60) * (1000000000); //(minute to seconds) * (seconds to nanoseconds)
res_nansec = (res_year + res_month + res_day + res_hour + res_min) * res_plmn;
SUB64(g_savetime, res_nansec);
SUB64(g_realtime, res_nansec);
wait_keys_released(DL);
}
}