void console_widget_t::calc_area(int x, int y)
{
/* calculate selection area */
if(mouse_drag_type)
{
/* copy rect */
/* calculate selection start location and selection width and height */
mouse_sx = i_min(loc_x(mouse_start_x), loc_x(x));
mouse_wx = i_abs(loc_x(x)-loc_x(mouse_start_x));
mouse_sy = i_min(loc_y(mouse_start_y), loc_y(y));
mouse_wy = i_abs(loc_y(y)-loc_y(mouse_start_y));
/* no point if mouse selection is empty */
mouse_wx = (mouse_wx == 0) ? 1 : mouse_wx;
mouse_wy = (mouse_wy == 0) ? 1 : mouse_wy;
/* clip selection to the size of the console */
mouse_wx = (mouse_sx+mouse_wx > console->config.x) ?
console->config.x - mouse_sx : mouse_wx;
mouse_wy = (mouse_sy+mouse_wy > console->config.y) ?
console->config.y : mouse_wy;
}
else
{
/* copy lines */
/* calculate start and end of selection */
loc_start = loc_x(mouse_start_x) + loc_y(mouse_start_y) * console->config.x;
loc_end = loc_x(x) + loc_y(y) * console->config.x;
/* swap start and end as needed */
if(loc_start>loc_end)
{
int temp = loc_start;
loc_start = loc_end;
loc_end = temp;
}
}
return;
}
void Texture_Map(texture_t *texture, float tu, float tv, vec4f_t color)
{
uint8_t r, g, b, a;
int u, v, pos;
if (texture->buffer == NULL)
{
Color4f_Format(color, 255, 255, 255, 255);
return;
}
/* using a % operator to cycle/repeat the texture if needed */
u = i_abs((int)(tu * texture->width) % texture->width);
v = i_abs((int)(tv * texture->height) % texture->height);
pos = (u + v * texture->width) * 4;
r = texture->buffer[pos + 0];
g = texture->buffer[pos + 1];
b = texture->buffer[pos + 2];
a = texture->buffer[pos + 3];
Color4f_Format(color, r, g, b, a);
}
// assume integer is 32 bits
inline static int ObjKey(const LDObjid &oid, const int hashSize) {
// make sure all positive
return (((i_abs(oid.id[2]) & 0x7F)<<24)
|((i_abs(oid.id[1]) & 0xFF)<<16)
|i_abs(oid.id[0])) % hashSize;
}
void
i_line_aa(i_img *im, i_img_dim x1, i_img_dim y1, i_img_dim x2, i_img_dim y2, const i_color *val, int endp) {
i_img_dim x, y;
i_img_dim dx, dy;
i_img_dim p;
dx = x2 - x1;
dy = y2 - y1;
/* choose variable to iterate on */
if (i_abs(dx) > i_abs(dy)) {
i_img_dim dx2, dy2, cpy;
/* sort by x */
if (x1 > x2) {
i_img_dim t;
t = x1; x1 = x2; x2 = t;
t = y1; y1 = y2; y2 = t;
}
dx = i_abs(dx);
dx2 = dx*2;
dy = y2 - y1;
if (dy<0) {
dy = -dy;
cpy = -1;
} else {
cpy = 1;
}
dy2 = dy*2;
p = dy2 - dx2; /* this has to be like this for AA */
y = y1;
for(x=x1; x<x2-1; x++) {
int ch;
i_color tval;
double t = (dy) ? -(float)(p)/(float)(dx2) : 1;
double t1, t2;
if (t<0) t = 0;
t1 = 1-t;
t2 = t;
i_gpix(im,x+1,y,&tval);
for(ch=0;ch<im->channels;ch++)
tval.channel[ch]=(unsigned char)(t1*(float)tval.channel[ch]+t2*(float)val->channel[ch]);
i_ppix(im,x+1,y,&tval);
i_gpix(im,x+1,y+cpy,&tval);
for(ch=0;ch<im->channels;ch++)
tval.channel[ch]=(unsigned char)(t2*(float)tval.channel[ch]+t1*(float)val->channel[ch]);
i_ppix(im,x+1,y+cpy,&tval);
if (p<0) {
p += dy2;
} else {
y += cpy;
p += dy2-dx2;
}
}
} else {
i_img_dim dy2, dx2, cpx;
/* sort bx y */
if (y1 > y2) {
i_img_dim t;
t = x1; x1 = x2; x2 = t;
t = y1; y1 = y2; y2 = t;
}
dy = i_abs(dy);
dx = x2 - x1;
dy2 = dy*2;
if (dx<0) {
dx = -dx;
cpx = -1;
} else {
cpx = 1;
}
dx2 = dx*2;
p = dx2 - dy2; /* this has to be like this for AA */
x = x1;
for(y=y1; y<y2-1; y++) {
int ch;
i_color tval;
double t = (dx) ? -(double)(p)/(double)(dy2) : 1;
double t1, t2;
if (t<0) t = 0;
t1 = 1-t;
t2 = t;
i_gpix(im,x,y+1,&tval);
for(ch=0;ch<im->channels;ch++)
tval.channel[ch]=(unsigned char)(t1*(double)tval.channel[ch]+t2*(double)val->channel[ch]);
i_ppix(im,x,y+1,&tval);
i_gpix(im,x+cpx,y+1,&tval);
for(ch=0;ch<im->channels;ch++)
tval.channel[ch]=(unsigned char)(t2*(double)tval.channel[ch]+t1*(double)val->channel[ch]);
i_ppix(im,x+cpx,y+1,&tval);
if (p<0) {
p += dx2;
} else {
x += cpx;
p += dx2-dy2;
}
}
}
if (endp) {
i_ppix(im, x1, y1, val);
i_ppix(im, x2, y2, val);
} else {
if (x1 != x2 || y1 != y2)
i_ppix(im, x1, y1, val);
}
}
void
i_line(i_img *im, i_img_dim x1, i_img_dim y1, i_img_dim x2, i_img_dim y2, const i_color *val, int endp) {
i_img_dim x, y;
i_img_dim dx, dy;
i_img_dim p;
dx = x2 - x1;
dy = y2 - y1;
/* choose variable to iterate on */
if (i_abs(dx) > i_abs(dy)) {
i_img_dim dx2, dy2, cpy;
/* sort by x */
if (x1 > x2) {
i_img_dim t;
t = x1; x1 = x2; x2 = t;
t = y1; y1 = y2; y2 = t;
}
dx = i_abs(dx);
dx2 = dx*2;
dy = y2 - y1;
if (dy<0) {
dy = -dy;
cpy = -1;
} else {
cpy = 1;
}
dy2 = dy*2;
p = dy2 - dx;
y = y1;
for(x=x1; x<x2-1; x++) {
if (p<0) {
p += dy2;
} else {
y += cpy;
p += dy2-dx2;
}
i_ppix(im, x+1, y, val);
}
} else {
i_img_dim dy2, dx2, cpx;
/* sort bx y */
if (y1 > y2) {
i_img_dim t;
t = x1; x1 = x2; x2 = t;
t = y1; y1 = y2; y2 = t;
}
dy = i_abs(dy);
dx = x2 - x1;
dy2 = dy*2;
if (dx<0) {
dx = -dx;
cpx = -1;
} else {
cpx = 1;
}
dx2 = dx*2;
p = dx2 - dy;
x = x1;
for(y=y1; y<y2-1; y++) {
if (p<0) {
p += dx2;
} else {
x += cpx;
p += dx2-dy2;
}
i_ppix(im, x, y+1, val);
}
}
if (endp) {
i_ppix(im, x1, y1, val);
i_ppix(im, x2, y2, val);
} else {
if (x1 != x2 || y1 != y2)
i_ppix(im, x1, y1, val);
}
}
