void rgluLookAt(GLdouble eyex, GLdouble eyey, GLdouble eyez,
GLdouble centerx, GLdouble centery, GLdouble centerz,
GLdouble upx, GLdouble upy, GLdouble upz)
{
GLdouble m[16];
GLdouble x[3], y[3], z[3];
GLdouble mag;
z[0] = eyex - centerx;
z[1] = eyey - centery;
z[2] = eyez - centerz;
mag = fsqrt(z[0]*z[0] + z[1]*z[1] + z[2]*z[2]);
if (mag)
{
z[0] /= mag;
z[1] /= mag;
z[2] /= mag;
}
y[0] = upx;
y[1] = upy;
y[2] = upz;
x[0] = y[1]*z[2] - y[2]*z[1];
x[1] = -y[0]*z[2] + y[2]*z[0];
x[2] = y[0]*z[1] - y[1]*z[0];
y[0] = z[1]*x[2] - z[2]*x[1];
y[1] = -z[0]*x[2] + z[2]*x[0];
y[2] = z[0]*x[1] - z[1]*x[0];
mag = fsqrt(x[0]*x[0] + x[1]*x[1] + x[2]*x[2]);
if (mag)
{
x[0] /= mag;
x[1] /= mag;
x[2] /= mag;
}
mag = fsqrt(y[0]*y[0] + y[1]*y[1] + y[2]*y[2]);
if (mag)
{
y[0] /= mag;
y[1] /= mag;
y[2] /= mag;
}
#define M(row,col) m[(col<<2)+row]
M(0,0) = x[0]; M(0,1) = x[1]; M(0,2) = x[2]; M(0,3) = 0.0;
M(1,0) = y[0]; M(1,1) = y[1]; M(1,2) = y[2]; M(1,3) = 0.0;
M(2,0) = z[0]; M(2,1) = z[1]; M(2,2) = z[2]; M(2,3) = 0.0;
M(3,0) = 0.0; M(3,1) = 0.0; M(3,2) = 0.0; M(3,3) = 1.0;
#undef M
glMultMatrixd(m);
glTranslated(-eyex, -eyey, -eyez);
}
int main(int argc, char*argv[]){
uint32_t i;
uint32_t result;
uint32_t out;
int k=0;
int del = 0;
int table[128];
i=0;
while(i<128){
table[i]=0;
i++;
}
k=0;
i = (127 << 23) + (0 << 14);
while(k < 16384*1024){
result=fsqrt_s(i);
out = fsqrt(i,0);
del = out - result;
table[del+64] = table[del+64]+1;
k++;
i++;
}
printtable(table);
return 0;
}
void getRotatePoint(Ship *ship, vector *point, real32 *distance)
{
Node *slavenode;
Ship *slave;
udword count;
vector dist;
dbgAssertOrIgnore(ship->flags & SOF_Slaveable); //ship should be slaveable
dbgAssertOrIgnore(ship->slaveinfo->slaves.num >= 5); //need enough for a pie plate!
slavenode = ship->slaveinfo->slaves.head;
point->x = ship->posinfo.position.x;
point->y = ship->posinfo.position.y;
point->z = ship->posinfo.position.z;
count = 0;
while (count < 5)
{
slave = (Ship *) listGetStructOfNode(slavenode);
vecAdd(*point, *point, slave->posinfo.position);
slavenode = slavenode->next;
count++;
}
point->x /= 6.0f;
point->y /= 6.0f;
point->z /= 6.0f;
vecSub(dist,ship->posinfo.position, *point);
*distance = vecMagnitudeSquared(dist);
*distance = fsqrt(*distance);
}
void V_Normalize(float *a) {
float s = (a[0] * a[0] + a[1] * a[1] + a[2] * a[2]);
float len = 1.0f / fsqrt(s);
a[0] *= len;
a[1] *= len;
a[2] *= len;
}
void print_fsqrt( uint32_t a ) {
uint32_t b = fsqrt( a );
float af = getFloat(a);
float bf = getFloat(b);
printf("実装したfsqrt\n");
printf("小数表示 fsqrt( %f ) = %f\n", af, bf );
printf("10進数表示 fsqrt( %d ) = %d\n", a, b );
printf("16進数表示 fsqrt( %x ) = %x\n", a, b );
}
/*-----------------------------------------------------------------------------
Name : vecNormalize
Description : normalizes a vector (makes it a unit vector)
Inputs : vector
Outputs : vector is normalized
Return :
----------------------------------------------------------------------------*/
void vecNormalize(vector *a)
{
real32 mag = fsqrt(vecMagnitudeSquared(*a));
real32 oneOverMag = 1.0f / mag;
a->x *= oneOverMag;
a->y *= oneOverMag;
a->z *= oneOverMag;
}
/*-----------------------------------------------------------------------------
Name : vecCopyAndNormalize
Description : copies a source vector to destination vector, and then
normalizes the destination vector
Inputs : src, dst
Outputs :
Return :
----------------------------------------------------------------------------*/
void vecCopyAndNormalize(vector *src,vector *dst)
{
real32 mag = fsqrt(vecMagnitudeSquared(*src));
real32 oneOverMag = 1.0f / mag;
dst->x = src->x * oneOverMag;
dst->y = src->y * oneOverMag;
dst->z = src->z * oneOverMag;
}
int plugin_tex_doit(int stype, Cast *cast, float *texvec, float *dxt, float *dyt, float *result)
{
float val = 0.0;
float a = 1.0;
float p[3];
float tv[3];
int i;
int res = TEX_INT;
tv[0]=(texvec[0]+1.0)/2.0;
tv[1]=(texvec[1]+1.0)/2.0;
tv[2]=(texvec[2]+1.0)/2.0;
p[0] = cast->txtscale * tv[0];
p[1] = cast->txtscale * tv[1];
p[2] = cast->txtscale * tv[2];
for (i=0; i<cast->depth; i++) {
val += a * hnoise(1.0, p[0], p[1], p[2]);
p[0] *= 2.0;
p[1] *= 2.0;
p[2] *= 2.0;
a *= 0.5;
}
/* always return this value */
result[0] = CLAMP (val+cast->offset, 0.0, 1.0) * pow (fabs(sqrt(tv[0]*tv[0]+tv[1]*tv[1]+tv[2]*tv[2])), cast->falloff);
if(stype==1) {
/*
* this is r, g, b, a:
*/
result[1]= 0.5*result[0];
result[2]= 1.0-val;
result[3]= fsqrt(fabs(result[0]));
result[4]= 1.0;
res |= TEX_RGB;
}
if(stype==2) {
/*
* This value is the displacement of the actual normal in
* the Material calculation.
*/
result[5]+= val;
result[6]+= 1.0-val;
result[7]= 0.0;
res |= TEX_NOR;
}
return res;
}
void gensqrt_s(void)
{
#ifdef INTERPRET_SQRT_S
gencallinterp((native_type)cached_interpreter_table.SQRT_S, 0);
#else
gencheck_cop1_unusable();
#ifdef __x86_64__
mov_xreg64_m64rel(RAX, (unsigned long long *)(®_cop1_simple[dst->f.cf.fs]));
fld_preg64_dword(RAX);
fsqrt();
mov_xreg64_m64rel(RAX, (unsigned long long *)(®_cop1_simple[dst->f.cf.fd]));
fstp_preg64_dword(RAX);
#else
mov_eax_memoffs32((unsigned int *)(®_cop1_simple[dst->f.cf.fs]));
fld_preg32_dword(EAX);
fsqrt();
mov_eax_memoffs32((unsigned int *)(®_cop1_simple[dst->f.cf.fd]));
fstp_preg32_dword(EAX);
#endif
#endif
}
float Gipps::accel(const LaneObject* v, float pos, float speed, float){
float s = pos - v->getFrontPosition();
float dv = v->getSpeed() - speed;
float v0Local = vns_MIN(v0*malphaV0,speedLimit);
float TLocal = DT*malphaT;
float vp = v->getSpeed() - dv;
// safe speed
float vSafe = -b * TLocal + fsqrt(b * b * TLocal * TLocal + vp * vp + 2 * b * vns_MAX(s - s0, 0.0));
float vNew = vns_MIN(vSafe, vns_MIN(v->getSpeed() + a * TLocal, v0Local));
return (vNew - v->getSpeed()) / TLocal;
}
void loadhook(float x=0.0f,float y=0.0f)
{
FILE *file;
if ((file=fopen(CONFIG,"rb"))==NULL) reloadhook();
else
{
VOLREN->get_tfunc()->load(file);
load(file);
reloadhook();
VOLREN->get_histo()->load(file);
reloadhook();
VOLREN->get_tfunc()->get_escale(&GUI_re_scale,&GUI_ge_scale,&GUI_be_scale);
VOLREN->get_tfunc()->get_ascale(&GUI_ra_scale,&GUI_ga_scale,&GUI_ba_scale);
GUI_re_scale=fsqrt(GUI_re_scale);
GUI_ge_scale=fsqrt(GUI_ge_scale);
GUI_be_scale=fsqrt(GUI_be_scale);
GUI_ra_scale=fsqrt(GUI_ra_scale);
GUI_ga_scale=fsqrt(GUI_ga_scale);
GUI_ba_scale=fsqrt(GUI_ba_scale);
fclose(file);
}
}
void gensqrt_s()
{
#ifdef INTERPRET_SQRT_S
gencallinterp((u32)SQRT_S, 0);
#else
gencheck_cop1_unusable();
mov_eax_memoffs32((u32 *)(®_cop1_simple[dst->f.cf.fs]));
fld_preg32_dword(EAX);
fsqrt();
mov_eax_memoffs32((u32 *)(®_cop1_simple[dst->f.cf.fd]));
fstp_preg32_dword(EAX);
#endif
}
void gensqrt_s(void)
{
#ifdef INTERPRET_SQRT_S
gencallinterp((unsigned int)cached_interpreter_table.SQRT_S, 0);
#else
gencheck_cop1_unusable();
mov_eax_memoffs32((unsigned int *)(®_cop1_simple[dst->f.cf.fs]));
fld_preg32_dword(EAX);
fsqrt();
mov_eax_memoffs32((unsigned int *)(®_cop1_simple[dst->f.cf.fd]));
fstp_preg32_dword(EAX);
#endif
}
void gensqrt_d()
{
#ifdef INTERPRET_SQRT_D
gencallinterp((unsigned long)SQRT_D, 0);
#else
gencheck_cop1_unusable();
mov_eax_memoffs32((unsigned long *)(®_cop1_double[dst->f.cf.fs]));
fld_preg32_qword(EAX);
fsqrt();
mov_eax_memoffs32((unsigned long *)(®_cop1_double[dst->f.cf.fd]));
fstp_preg32_qword(EAX);
#endif
}
/*-----------------------------------------------------------------------------
Name : vecCapMinVector
Description : limits a vector's minimum magnitude from growing below a maximum
magnitude
Inputs : vectorToCap, minMagnitude
Outputs :
Return :
----------------------------------------------------------------------------*/
void vecCapMinVector(vector *vectorToCap,real32 minMagnitude)
{
real32 actualMag = fsqrt(vecMagnitudeSquared(*vectorToCap));
real32 ratio;
if (actualMag < minMagnitude)
{
ratio = minMagnitude / actualMag;
vectorToCap->x *= ratio;
vectorToCap->y *= ratio;
vectorToCap->z *= ratio;
}
}
void gensqrt_d(usf_state_t * state)
{
#ifdef INTERPRET_SQRT_D
gencallinterp(state, (unsigned int)state->current_instruction_table.SQRT_D, 0);
#else
gencheck_cop1_unusable(state);
mov_eax_memoffs32(state, (unsigned int *)(&state->reg_cop1_double[state->dst->f.cf.fs]));
fld_preg32_qword(state, EAX);
fsqrt(state);
mov_eax_memoffs32(state, (unsigned int *)(&state->reg_cop1_double[state->dst->f.cf.fd]));
fstp_preg32_qword(state, EAX);
#endif
}
inline f32 distToLine(f32 cx, f32 cy, f32 ax, f32 ay, f32 bx, f32 by)
{
f32 r_numerator = (cx-ax)*(bx-ax) + (cy-ay)*(by-ay);
f32 r_denomenator = (bx-ax)*(bx-ax) + (by-ay)*(by-ay);
f32 r = r_numerator / r_denomenator;
f32 px = ax + r*(bx-ax);
f32 py = ay + r*(by-ay);
f32 s = ((ay-cy)*(bx-ax)-(ax-cx)*(by-ay) ) / r_denomenator;
f32 distanceLine = fabs(s)*fsqrt(r_denomenator);
return distanceLine;
}
void gensqrt_s(void)
{
#if defined(COUNT_INSTR)
inc_m32rel(&instr_count[123]);
#endif
#ifdef INTERPRET_SQRT_S
gencallinterp((unsigned long long)cached_interpreter_table.SQRT_S, 0);
#else
gencheck_cop1_unusable();
mov_xreg64_m64rel(RAX, (unsigned long long *)(®_cop1_simple[dst->f.cf.fs]));
fld_preg64_dword(RAX);
fsqrt();
mov_xreg64_m64rel(RAX, (unsigned long long *)(®_cop1_simple[dst->f.cf.fd]));
fstp_preg64_dword(RAX);
#endif
}
//fires the bursts for the ship
bool doBurstFire(Ship *ship)
{
HeavyCorvetteSpec *spec = (HeavyCorvetteSpec *)ship->ShipSpecifics;
GunInfo *gunInfo = ship->gunInfo;
sdword numGuns = gunInfo->numGuns;
//Gun *gun;
sdword done;
vector trajectory,heading;
real32 range,one_over_range;
SpaceObjRotImpTarg dummyTarg;
vecSub(trajectory,spec->burstFireVector,ship->posinfo.position);
range = vecMagnitudeSquared(trajectory);
range = fsqrt(range);
one_over_range = 1.0f/range;
vecScalarMultiply(trajectory,trajectory,one_over_range);
dummyTarg.objtype = OBJ_ShipType;
dummyTarg.posinfo.position = spec->burstFireVector;
dummyTarg.collInfo.collPosition = spec->burstFireVector;
dummyTarg.currentLOD = ship->currentLOD;
dummyTarg.collMyBlob = ship->collMyBlob;
vecSet(dummyTarg.posinfo.velocity,0.0f,0.0f,0.0f);
//track target even more precisely
vecSub(heading,spec->burstFireVector,ship->posinfo.position);
vecNormalize(&heading);
aitrackHeadingWithFlags(ship,&heading,0.9999f,AITRACKHEADING_IGNOREUPVEC);
//set special information that needs to be 'transmitted'
//to the code in gunshoot.
//fix later
spec->bulletLifeTime = range*oneOverburstSpeed;
bitSet(ship->specialFlags,SPECIAL_BurstFiring);
done = gunShootGunsAtTarget(ship,&dummyTarg,0.0f,&trajectory);
bitClear(ship->specialFlags,SPECIAL_BurstFiring);
if(done == TRUE)
{
spec->cooldown = TRUE;
spec->burstChargeState2 = burstCoolDownTime;
}
return done;
}
int check_float( float a, float b ) {
uint32_t a_int = getUint32_t( a );
uint32_t b_int = getUint32_t( b );
float normal_f = (float)sqrt( a );
uint32_t sqrt = getUint32_t( normal_f );
uint32_t f_sqrt = fsqrt( a_int );
if ( sqrt != f_sqrt ) {
printf("数字 : %f\n", a);
printf("通常 %x\n", sqrt );
printf("自作 %x\n", f_sqrt );
}
uint32_t inv = getUint32_t( (float)(1.0 / a ) );
uint32_t f_inv = finv( a_int );
uint32_t div = getUint32_t( (float)(1.0 / b ) );
uint32_t f_div = finv( b_int );
return sqrt == f_sqrt && inv == f_inv && div == f_div;
}
int main(void) {
union data_32bit a;
union data_32bit result;
int select_flag;
char select_buf[10];
printf("select import form :\n");
printf("float -> 0\n");
printf("32bit -> 1 (others)\n");
gets(select_buf);
sscanf(select_buf, "%d\n", &select_flag);
if (select_flag == 0) {
printf("a.fl32 : "); scanf("%f", &a.fl32);
} else {
char a_str[35];
printf("詰めて入力しても可\n");
printf("- --exp--- -------fraction--------\n");
printf("a(32bit) :\n");
gets(a_str);
a.uint32 = str_to_uint32(delete_space(a_str));
}
printf("\n");
printf("-- a --\n");
print_data(a);
printf("\n");
result.uint32 = fsqrt(a.uint32);
printf("-- fsqrt(result) --\n");
print_data(result);
printf("\n");
union data_32bit test;
printf("-- correct answer --\n");
test.fl32 = sqrtf(a.fl32);
print_data(test);
return(0);
}
void Matrix::rotate(float angle, const Vector & axis) {
float vx = axis.x, vy = axis.y, vz = axis.z;
float rcos = fcos(angle * DEG2RAD);
float rsin = fsin(angle * DEG2RAD);
float invrcos = (1.0f - rcos);
float mag = fsqrt(vx*vx + vy*vy + vz*vz);
float xx, yy, zz, xy, yz, zx;
if (mag < 1.0e-6) {
// Rotation vector is too small to be significant
return;
}
// Normalize the rotation vector
vx /= mag;
vy /= mag;
vz /= mag;
xx = vx * vx;
yy = vy * vy;
zz = vz * vz;
xy = (vx * vy * invrcos);
yz = (vy * vz * invrcos);
zx = (vz * vx * invrcos);
// Generate the rotation matrix
Matrix mr; mr.identity();
// Hehe
mr.matrix[0][0] = xx + rcos * (1.0f - xx);
mr.matrix[2][1] = yz - vx * rsin;
mr.matrix[1][2] = yz + vx * rsin;
mr.matrix[1][1] = yy + rcos * (1.0f - yy);
mr.matrix[2][0] = zx + vy * rsin;
mr.matrix[0][2] = zx - vy * rsin;
mr.matrix[2][2] = zz + rcos * (1.0f - zz);
mr.matrix[1][0] = xy - vz * rsin;
mr.matrix[0][1] = xy + vz * rsin;
// Multiply it onto us
*this = *this * mr;
}
void tutDrawLinePulse(sdword x0, sdword y0, sdword x1, sdword y1, ubyte pulsevalue, sdword segsize)
{
real32 x0f = (real32)x0;
real32 y0f = (real32)y0;
real32 x1f = (real32)x1;
real32 y1f = (real32)y1;
real32 diffx = (x1f - x0f);
real32 diffy = (y1f - y0f);
sdword segment;
real32 segments;
bool blendon;
segments = fsqrt(diffx*diffx + diffy*diffy) / (real32)segsize;
diffx /= segments;
diffy /= segments;
if (glCapFeatureExists(GL_LINE_SMOOTH))
{
blendon = (bool)glIsEnabled(GL_BLEND);
if (!blendon) glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
}
glBegin(GL_LINES);
for(segment = 0; segment <= segments; segment++)
{
glColor3ub(pulsevalue, pulsevalue, pulsevalue);
glVertex2f(primScreenToGLX((sdword)x0f), primScreenToGLY((sdword)y0f));
x0f += diffx;
y0f += diffy;
glVertex2f(primScreenToGLX((sdword)x0f), primScreenToGLY((sdword)y0f));
pulsevalue += 25;
}
glEnd();
if (glCapFeatureExists(GL_LINE_SMOOTH))
{
glDisable(GL_LINE_SMOOTH);
if (!blendon) glDisable(GL_BLEND);
}
}
void
fakephong_highlight_texture (pvr_ptr_t highlight, unsigned int xsize,
unsigned int ysize, float hardness)
{
uint8 *tmphilight;
unsigned int x, y;
float norm[3] = {0.0, 0.0, 1.0};
const float xscale = (float) (xsize - 1) / 2.0f;
const float yscale = (float) (ysize - 1) / 2.0f;
tmphilight = malloc (xsize * ysize);
/* We need a way to map 2D texture coordinates to points on a unit hemisphere,
such that interpolating linearly along the texture approximates travelling
smoothly along a great circle around the hemisphere. Not sure how best to
do this. Maybe a parabolic texture?
Using x, y coords unaltered and choosing z on the surface of the sphere.
Only the circular part of the texture is used. */
for (y = 0; y < ysize; y++)
for (x = 0; x < xsize; x++)
{
float reflection[3];
float dot;
reflection[0] = (x - xscale) / xscale;
reflection[1] = (y - yscale) / yscale;
reflection[2] = fsqrt (1.0 - reflection[0] * reflection[0]
- reflection[1] * reflection[1]);
dot = vec_dot (reflection, norm);
tmphilight[y * ysize + x] = 255.0 * powf (dot, hardness);
}
assert (highlight != 0);
pvr_txr_load_ex (tmphilight, highlight, xsize, ysize, PVR_TXRLOAD_8BPP);
free (tmphilight);
}
void printSqrt (uint32_t in)
{
union uint32_f a, c;
char aa[33],cc[33];
a.i = in;
if (fpclassify (a.f) != FP_NORMAL)
return;
c.i = fsqrt (a.i);
if (fpclassify (c.f) != FP_NORMAL)
return;
for (int t = 0; t < 32;++t)
{
aa[31 - t] = a.i & (1 << t) ? '1' : '0';
cc[31 - t] = c.i & (1 << t) ? '1' : '0';
}
aa[32] = '\0';
cc[32] = '\0';
// 非正規化数とかはやらない
if (isnormal (a.f))
{
if (!isnan (c.f))
printf ("%s\t%s\n",aa,cc);
}
}
void wkTradeInit(void)
{
sdword index;
Node *objnode = universe.ShipList.head;
Ship *ship;
real32 mass;
index = 0;
while (objnode != NULL)
{
ship = (Ship *)listGetStructOfNode(objnode);
dbgAssertOrIgnore(ship->objtype == OBJ_ShipType);
wkTradeShips[index].ship = ship;
mass = ship->staticinfo->staticheader.mass / WK_MASS_SCALE;
wkTradeShips[index].x = 0.0f;
wkTradeShips[index].y = 0.0f;
wkTradeShips[index].vx = 0.0f;
wkTradeShips[index].vy = 0.0f;
wkTradeShips[index].ang = 0.0f;
wkTradeShips[index].vang = 0.0f;
wkTradeShips[index].vangacc = WK_ANGULAR_ACC / fsqrt(mass);
wkTradeShips[index].vangmax = WK_ANGULAR_MAXVEL / fsqrt(fsqrt(mass));
wkTradeShips[index].acc = WK_LINEAR_ACC / fsqrt(mass);
wkTradeShips[index].maxvel = WK_LINEAR_MAXVEL;
wkTradeShips[index].revacc = WK_LINEAR_REVACC / fsqrt(mass);
wkTradeShips[index].strafeacc = WK_STRAFE_ACC / fsqrt(mass);
wkTradeShips[index].controlthrust = 0;
wkTradeShips[index].controlrot = 0;
wkTradeShips[index].controlstrafe = 0;
wkTradeShips[index].controlfire = 0;
index++;
objnode = objnode->next;
}
wkTradeShips[index].ship = NULL;
}
static void do_emu(struct info * info)
{
unsigned short code;
temp_real tmp;
char * address;
if (I387.cwd & I387.swd & 0x3f)
I387.swd |= 0x8000;
else
I387.swd &= 0x7fff;
ORIG_EIP = EIP;
/* 0x0007 means user code space */
if (CS != 0x000F) {
printk("math_emulate: %04x:%08x\n\r",CS,EIP);
panic("Math emulation needed in kernel");
}
code = get_fs_word((unsigned short *) EIP);
bswapw(code);
code &= 0x7ff;
I387.fip = EIP;
*(unsigned short *) &I387.fcs = CS;
*(1+(unsigned short *) &I387.fcs) = code;
EIP += 2;
switch (code) {
case 0x1d0: /* fnop */
return;
case 0x1d1: case 0x1d2: case 0x1d3:
case 0x1d4: case 0x1d5: case 0x1d6: case 0x1d7:
math_abort(info,SIGILL);
case 0x1e0:
ST(0).exponent ^= 0x8000;
return;
case 0x1e1:
ST(0).exponent &= 0x7fff;
return;
case 0x1e2: case 0x1e3:
math_abort(info,SIGILL);
case 0x1e4:
ftst(PST(0));
return;
case 0x1e5:
printk("fxam not implemented\n\r");
math_abort(info,SIGILL);
case 0x1e6: case 0x1e7:
math_abort(info,SIGILL);
case 0x1e8:
fpush();
ST(0) = CONST1;
return;
case 0x1e9:
fpush();
ST(0) = CONSTL2T;
return;
case 0x1ea:
fpush();
ST(0) = CONSTL2E;
return;
case 0x1eb:
fpush();
ST(0) = CONSTPI;
return;
case 0x1ec:
fpush();
ST(0) = CONSTLG2;
return;
case 0x1ed:
fpush();
ST(0) = CONSTLN2;
return;
case 0x1ee:
fpush();
ST(0) = CONSTZ;
return;
case 0x1ef:
math_abort(info,SIGILL);
case 0x1fa:
fsqrt(PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x1f0: case 0x1f1: case 0x1f2: case 0x1f3:
case 0x1f4: case 0x1f5: case 0x1f6: case 0x1f7:
case 0x1f8: case 0x1f9: case 0x1fb: case 0x1fd:
case 0x1fe: case 0x1ff:
printk("%04x fxxx not implemented\n\r",code + 0xd800);
math_abort(info,SIGILL);
case 0x1fc:
frndint(PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x2e9:
fucom(PST(1),PST(0));
fpop(); fpop();
return;
case 0x3d0: case 0x3d1:
return;
case 0x3e2:
I387.swd &= 0x7f00;
return;
case 0x3e3:
I387.cwd = 0x037f;
I387.swd = 0x0000;
I387.twd = 0x0000;
return;
case 0x3e4:
return;
case 0x6d9:
fcom(PST(1),PST(0));
fpop(); fpop();
return;
case 0x7e0:
*(short *) &EAX = I387.swd;
return;
}
switch (code >> 3) {
case 0x18:
fadd(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x19:
fmul(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x1a:
fcom(PST(code & 7),PST(0));
return;
case 0x1b:
fcom(PST(code & 7),PST(0));
fpop();
return;
case 0x1c:
real_to_real(&ST(code & 7),&tmp);
tmp.exponent ^= 0x8000;
fadd(PST(0),&tmp,&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x1d:
ST(0).exponent ^= 0x8000;
fadd(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x1e:
fdiv(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x1f:
fdiv(PST(code & 7),PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 0x38:
fpush();
ST(0) = ST((code+1) & 7);
return;
case 0x39:
fxchg(&ST(0),&ST(code & 7));
return;
case 0x3b:
ST(code & 7) = ST(0);
fpop();
return;
case 0x98:
fadd(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(code & 7));
return;
case 0x99:
fmul(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(code & 7));
return;
case 0x9a:
fcom(PST(code & 7),PST(0));
return;
case 0x9b:
fcom(PST(code & 7),PST(0));
fpop();
return;
case 0x9c:
ST(code & 7).exponent ^= 0x8000;
fadd(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(code & 7));
return;
case 0x9d:
real_to_real(&ST(0),&tmp);
tmp.exponent ^= 0x8000;
fadd(PST(code & 7),&tmp,&tmp);
real_to_real(&tmp,&ST(code & 7));
return;
case 0x9e:
fdiv(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(code & 7));
return;
case 0x9f:
fdiv(PST(code & 7),PST(0),&tmp);
real_to_real(&tmp,&ST(code & 7));
return;
case 0xb8:
printk("ffree not implemented\n\r");
math_abort(info,SIGILL);
case 0xb9:
fxchg(&ST(0),&ST(code & 7));
return;
case 0xba:
ST(code & 7) = ST(0);
return;
case 0xbb:
ST(code & 7) = ST(0);
fpop();
return;
case 0xbc:
fucom(PST(code & 7),PST(0));
return;
case 0xbd:
fucom(PST(code & 7),PST(0));
fpop();
return;
case 0xd8:
fadd(PST(code & 7),PST(0),&tmp);
real_to_real(&tmp,&ST(code & 7));
fpop();
return;
case 0xd9:
fmul(PST(code & 7),PST(0),&tmp);
real_to_real(&tmp,&ST(code & 7));
fpop();
return;
case 0xda:
fcom(PST(code & 7),PST(0));
fpop();
return;
case 0xdc:
ST(code & 7).exponent ^= 0x8000;
fadd(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(code & 7));
fpop();
return;
case 0xdd:
real_to_real(&ST(0),&tmp);
tmp.exponent ^= 0x8000;
fadd(PST(code & 7),&tmp,&tmp);
real_to_real(&tmp,&ST(code & 7));
fpop();
return;
case 0xde:
fdiv(PST(0),PST(code & 7),&tmp);
real_to_real(&tmp,&ST(code & 7));
fpop();
return;
case 0xdf:
fdiv(PST(code & 7),PST(0),&tmp);
real_to_real(&tmp,&ST(code & 7));
fpop();
return;
case 0xf8:
printk("ffree not implemented\n\r");
math_abort(info,SIGILL);
fpop();
return;
case 0xf9:
fxchg(&ST(0),&ST(code & 7));
return;
case 0xfa:
case 0xfb:
ST(code & 7) = ST(0);
fpop();
return;
}
switch ((code>>3) & 0xe7) {
case 0x22:
put_short_real(PST(0),info,code);
return;
case 0x23:
put_short_real(PST(0),info,code);
fpop();
return;
case 0x24:
address = ea(info,code);
for (code = 0 ; code < 7 ; code++) {
((long *) & I387)[code] =
get_fs_long((unsigned long *) address);
address += 4;
}
return;
case 0x25:
address = ea(info,code);
*(unsigned short *) &I387.cwd =
get_fs_word((unsigned short *) address);
return;
case 0x26:
address = ea(info,code);
verify_area(address,28);
for (code = 0 ; code < 7 ; code++) {
put_fs_long( ((long *) & I387)[code],
(unsigned long *) address);
address += 4;
}
return;
case 0x27:
address = ea(info,code);
verify_area(address,2);
put_fs_word(I387.cwd,(short *) address);
return;
case 0x62:
put_long_int(PST(0),info,code);
return;
case 0x63:
put_long_int(PST(0),info,code);
fpop();
return;
case 0x65:
fpush();
get_temp_real(&tmp,info,code);
real_to_real(&tmp,&ST(0));
return;
case 0x67:
put_temp_real(PST(0),info,code);
fpop();
return;
case 0xa2:
put_long_real(PST(0),info,code);
return;
case 0xa3:
put_long_real(PST(0),info,code);
fpop();
return;
case 0xa4:
address = ea(info,code);
for (code = 0 ; code < 27 ; code++) {
((long *) & I387)[code] =
get_fs_long((unsigned long *) address);
address += 4;
}
return;
case 0xa6:
address = ea(info,code);
verify_area(address,108);
for (code = 0 ; code < 27 ; code++) {
put_fs_long( ((long *) & I387)[code],
(unsigned long *) address);
address += 4;
}
I387.cwd = 0x037f;
I387.swd = 0x0000;
I387.twd = 0x0000;
return;
case 0xa7:
address = ea(info,code);
verify_area(address,2);
put_fs_word(I387.swd,(short *) address);
return;
case 0xe2:
put_short_int(PST(0),info,code);
return;
case 0xe3:
put_short_int(PST(0),info,code);
fpop();
return;
case 0xe4:
fpush();
get_BCD(&tmp,info,code);
real_to_real(&tmp,&ST(0));
return;
case 0xe5:
fpush();
get_longlong_int(&tmp,info,code);
real_to_real(&tmp,&ST(0));
return;
case 0xe6:
put_BCD(PST(0),info,code);
fpop();
return;
case 0xe7:
put_longlong_int(PST(0),info,code);
fpop();
return;
}
switch (code >> 9) {
case 0:
get_short_real(&tmp,info,code);
break;
case 1:
get_long_int(&tmp,info,code);
break;
case 2:
get_long_real(&tmp,info,code);
break;
case 4:
get_short_int(&tmp,info,code);
}
switch ((code>>3) & 0x27) {
case 0:
fadd(&tmp,PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 1:
fmul(&tmp,PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 2:
fcom(&tmp,PST(0));
return;
case 3:
fcom(&tmp,PST(0));
fpop();
return;
case 4:
tmp.exponent ^= 0x8000;
fadd(&tmp,PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 5:
ST(0).exponent ^= 0x8000;
fadd(&tmp,PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
case 6:
fdiv(PST(0),&tmp,&tmp);
real_to_real(&tmp,&ST(0));
return;
case 7:
fdiv(&tmp,PST(0),&tmp);
real_to_real(&tmp,&ST(0));
return;
}
if ((code & 0x138) == 0x100) {
fpush();
real_to_real(&tmp,&ST(0));
return;
}
printk("Unknown math-insns: %04x:%08x %04x\n\r",CS,EIP,code);
math_abort(info,SIGFPE);
}
void test_mode_7 ()
{
MODE_7_PARAMS params;
BITMAP *tile, *sprite, *buffer;
PALETTE pal;
int quit = FALSE;
fixed angle = itofix (0);
fixed x = 0, y = 0;
fixed dx = 0, dy = 0;
fixed speed = 0;
int i, j, r2;
params.space_z = itofix (50);
params.scale_x = ftofix (200.0);
params.scale_y = ftofix (200.0);
params.obj_scale_x = ftofix (50.0);
params.obj_scale_y = ftofix (50.0);
params.horizon = 20;
// to avoid flicker the program makes use of a double-buffering system
buffer = create_bitmap (screen->w, screen->h);
// create a 64x64 tile bitmap and draw something on it.
tile = create_bitmap (64, 64);
for (i = 0; i < 32; i++)
{
for (j = i; j < 32; j++)
{
putpixel (tile, i, j, i);
putpixel (tile, i, 63-j, i);
putpixel (tile, 63-i, j, i);
putpixel (tile, 63-i, 63-j, i);
putpixel (tile, j, i, i);
putpixel (tile, j, 63-i, i);
putpixel (tile, 63-j, i, i);
putpixel (tile, 63-j, 63-i, i);
}
}
text_mode (-1);
// Create another bitmap and draw something to it.
// This bitmap contains the object.
sprite = create_bitmap (64, 64);
clear (sprite);
for (i = 0; i < 64; i++)
{
for (j = 0; j < 64; j++)
{
r2 = (32 - i) * (32 - i) + (32 - j) * (32 - j);
if (r2 < 30 * 30)
{
r2 = (24 - i) * (24 - i) + (24 - j) * (24 - j);
putpixel (sprite, i, j, 127 - fixtoi(fsqrt(itofix(r2))));
}
}
}
// create a palette
// colors for the tiles
for (i = 0; i < 64; i++)
{
pal[i].r = i;
pal[i].g = i;
pal[i].b = 0;
}
// colors for the object
for (i = 0; i < 32; i++)
{
pal[i+64].r = 0;
pal[i+64].g = 0;
pal[i+64].b = 2 * i;
pal[i+96].r = 2 * i;
pal[i+96].g = 2 * i;
pal[i+96].b = 63;
}
set_palette (pal);
while (!quit)
{
// act on keyboard input
if (key[KEY_ESC]) quit = TRUE;
if (key[KEY_UP] && speed < itofix (5))
speed += ftofix (0.1);
if (key[KEY_DOWN] && speed > itofix (-5))
speed -= ftofix (0.1);
if (key[KEY_LEFT])
angle = (angle - itofix (3)) & 0xFFFFFF;
if (key[KEY_RIGHT])
angle = (angle + itofix (3)) & 0xFFFFFF;
if (key[KEY_Z])
params.space_z += itofix(5);
if (key[KEY_X])
params.space_z -= itofix(5);
if (key[KEY_Q])
params.scale_x = fmul (params.scale_x, ftofix (1.5));
if (key[KEY_W])
params.scale_x = fdiv (params.scale_x, ftofix (1.5));
if (key[KEY_E])
params.scale_y = fmul (params.scale_y, ftofix (1.5));
if (key[KEY_R])
params.scale_y = fdiv (params.scale_y, ftofix (1.5));
if (key[KEY_H])
params.horizon++;
if (key[KEY_J])
params.horizon--;
dx = fmul (speed, fcos (angle));
dy = fmul (speed, fsin (angle));
x += dx;
y += dy;
mode_7 (buffer, tile, angle, x, y, params);
draw_object (buffer, sprite, angle, x, y, params);
vsync();
blit (buffer, screen, 0, 0, 0, 0, SCREEN_W, SCREEN_H);
}
destroy_bitmap (tile);
destroy_bitmap (sprite);
destroy_bitmap (buffer);
}
address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
// rbx,: methodOop
// rcx: scratrch
// rsi: sender sp
if (!InlineIntrinsics) return NULL; // Generate a vanilla entry
address entry_point = __ pc();
// These don't need a safepoint check because they aren't virtually
// callable. We won't enter these intrinsics from compiled code.
// If in the future we added an intrinsic which was virtually callable
// we'd have to worry about how to safepoint so that this code is used.
// mathematical functions inlined by compiler
// (interpreter must provide identical implementation
// in order to avoid monotonicity bugs when switching
// from interpreter to compiler in the middle of some
// computation)
//
// stack: [ ret adr ] <-- rsp
// [ lo(arg) ]
// [ hi(arg) ]
//
// Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are
// native methods. Interpreter::method_kind(...) does a check for
// native methods first before checking for intrinsic methods and
// thus will never select this entry point. Make sure it is not
// called accidentally since the SharedRuntime entry points will
// not work for JDK 1.2.
//
// We no longer need to check for JDK 1.2 since it's EOL'ed.
// The following check existed in pre 1.6 implementation,
// if (Universe::is_jdk12x_version()) {
// __ should_not_reach_here();
// }
// Universe::is_jdk12x_version() always returns false since
// the JDK version is not yet determined when this method is called.
// This method is called during interpreter_init() whereas
// JDK version is only determined when universe2_init() is called.
// Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are
// java methods. Interpreter::method_kind(...) will select
// this entry point for the corresponding methods in JDK 1.3.
// get argument
__ fld_d(Address(rsp, 1*wordSize));
switch (kind) {
case Interpreter::java_lang_math_sin :
__ trigfunc('s');
break;
case Interpreter::java_lang_math_cos :
__ trigfunc('c');
break;
case Interpreter::java_lang_math_tan :
__ trigfunc('t');
break;
case Interpreter::java_lang_math_sqrt:
__ fsqrt();
break;
case Interpreter::java_lang_math_abs:
__ fabs();
break;
case Interpreter::java_lang_math_log:
__ flog();
// Store to stack to convert 80bit precision back to 64bits
__ push_fTOS();
__ pop_fTOS();
break;
case Interpreter::java_lang_math_log10:
__ flog10();
// Store to stack to convert 80bit precision back to 64bits
__ push_fTOS();
__ pop_fTOS();
break;
default :
ShouldNotReachHere();
}
// return double result in xmm0 for interpreter and compilers.
if (UseSSE >= 2) {
__ subptr(rsp, 2*wordSize);
__ fstp_d(Address(rsp, 0));
__ movdbl(xmm0, Address(rsp, 0));
__ addptr(rsp, 2*wordSize);
}
// done, result in FPU ST(0) or XMM0
__ pop(rdi); // get return address
__ mov(rsp, rsi); // set sp to sender sp
__ jmp(rdi);
return entry_point;
}
void cSkeleton<_DataType>::FlagNonUniformGradient()
{
int i, j, k, l, m, n, Idx, loc[8];
int NumNonunifromVoxels, IsNonuniform;
float AveVec_f[3], DotProduct_f, Tempf;
printf ("\n");
printf ("Flag NonUniform Gradient() ... \n");
fflush(stdout);
for (k=1; k<Depth_mi-1; k++) {
for (j=1; j<Height_mi-1; j++) {
for (i=1; i<Width_mi-1; i++) {
loc[0] = Index (i, j, k);
if (VoxelFlags_muc[loc[0]]==FLAG_EMPTY ||
VoxelFlags_muc[loc[0]]==FLAG_NONUNIFORM) continue;
if (Distance_mi[loc[0]]<=1) continue;
for (m=0; m<3; m++) AveVec_f[m] = 0.0;
Idx = 0;
for (n=k; n<=k+1; n++) {
for (m=j; m<=j+1; m++) {
for (l=i; l<=i+1; l++) {
loc[Idx] = Index (l, m, n);
AveVec_f[0] += GVFDistance_mf[loc[Idx]*3 + 0];
AveVec_f[1] += GVFDistance_mf[loc[Idx]*3 + 1];
AveVec_f[2] += GVFDistance_mf[loc[Idx]*3 + 2];
Idx++;
}
}
}
for (l=0; l<3; l++) AveVec_f[l] /= 8.0;
// When the vector length is zero, then mark the voxels as nonuniform voxels
Tempf = fsqrt (AveVec_f[0]*AveVec_f[0] + AveVec_f[1]*AveVec_f[1] + AveVec_f[2]*AveVec_f[2]);
if (Tempf<1e-6) {
for (m=0; m<8; m++) VoxelFlags_muc[loc[m]] = FLAG_NONUNIFORM;
continue;
}
IsNonuniform = false;
for (m=0; m<8; m++) {
DotProduct_f = 0;
for (l=0; l<3; l++) {
DotProduct_f += AveVec_f[l]*GVFDistance_mf[loc[m]*3 + l];
}
if (DotProduct_f<=0) {
IsNonuniform = true;
break;
}
}
if (IsNonuniform) {
for (m=0; m<8; m++) VoxelFlags_muc[loc[m]] = FLAG_NONUNIFORM;
}
}
}
}
NumNonunifromVoxels = 0;
for (i=0; i<WHD_mi; i++) {
if (VoxelFlags_muc[i]==FLAG_NONUNIFORM) NumNonunifromVoxels++;
}
printf ("Num. Nonuniform Voxels = %d\n", NumNonunifromVoxels);
printf ("Num. Segmented Voxels = %d\n", NumSegmentedVoxels_mi);
printf ("Num. Nonuniform / NumSegmented = %f %%\n", (float)NumNonunifromVoxels/NumSegmentedVoxels_mi*100.0);
printf ("Num. Nonuniform / Total Num. Voxels = %f %%\n", (double)NumNonunifromVoxels/WHD_mi*100.0);
fflush (stdout);
}