void Flcc_ValueBox::generate()
{
int X = 0, Y = 0, W = w(), H = h();
box()->inset(X,Y,W,H);
Fl_Image *im = new Fl_Image(W, H, 32);
uint32 *dst = (uint32*)im->data();
uint32 rgb;
int skip = (im->pitch() - W * im->bytespp()) >> 2;
for(int y = 0; y < H; y++) {
float Yf = 255*(1.0-float(y)/H);
fl_rgb888_from_rgb(rgb, uchar(tr*Yf+.5f), uchar(tg*Yf+.5f), uchar(tb*Yf+.5f));
for(int x = 0; x < W; x++) {
*dst++ = rgb;
}
dst += skip;
}
if(bg) delete bg;
bg = im;
}
void Flcc_HueBox::generate()
{
int X = 0, Y = 0, W = w(), H = h();
box()->inset(X,Y,W,H);
#ifdef UPDATE_HUE_BOX
const float V = ((Fl_Color_Chooser*)(parent()))->v();
#else
const float V = 1.0f;
#endif
Fl_Image *im = new Fl_Image(W, H, 32);
uint32 *dst = (uint32 *)im->data();
int skip = (im->pitch() - W * im->bytespp()) >> 2;
register float r,g,b;
for(int y = 0; y < H; y++) {
float Yf = (float)y / H;
for (int x = 0; x < W; x++)
{
float Xf = (float)x / W;
float H,S; tohs(Xf, Yf, H, S);
Fl_Color_Chooser::hsv2rgb(H,S,V,r,g,b);
fl_rgb888_from_rgb(*dst++, uchar(255*r+.5f), uchar(255*g+.5f), uchar(255*b+.5f));
}
dst += skip;
}
if(bg) delete bg;
bg = im;
}
uint8 *render_box(int w, int h, int bitspp, uint color, Fl_Colormap *pal, uint8 *buffer=0)
{
int bpp = (bitspp+7)/8;
int pitch = Fl_Renderer::calc_pitch(bpp, w);
uint8 *ret = buffer;
if(!buffer) ret = new uchar[pitch*h];
uint8 r=0,g=0,b=0;
fl_get_color(color, r, g, b);
uint32 fill_color=0;
switch(bitspp) {
case 32: fl_rgb888_from_rgb(fill_color ,r,g,b); break;
case 16: fl_rgb565_from_rgb((uint16&)fill_color ,r,g,b); break;
case 15: fl_rgb555_from_rgb((uint16&)fill_color ,r,g,b); break;
case 8: fill_color = pal->find_color(r,g,b); break;
default: break;
}
// Fill box, using fast duffs looping
uint8 *ptr = ret;
int skip = pitch - w * bpp;
int height = h; int width = w;
while ( height-- ) {
DUFFS_LOOP(
{
switch(bitspp)
{
case 32: (uint32&)(*ptr) = fill_color; break;
case 24: ptr[0] = r; ptr[1] = g; ptr[2] = b; break;
case 16: (uint16&)(*ptr) = (uint16&)fill_color; break;
case 15: (uint16&)(*ptr) = (uint16&)fill_color; break;
case 8: (uint8&)(*ptr) = (uint8&)fill_color; break;
default: break;
}
ptr += bpp;
}, width);
ptr += skip;
}