Variable blendExpression::evaluate()
{
ImageObject* bottom = store->getImage();
Variable topVar = arguments[0]->getResult();
ImageObject* top = topVar.get<ImageObject>();
setLocalVariable("x", &x);
setLocalVariable("y", &y);
setLocalVariable("r1", &r1);
setLocalVariable("g1", &g1);
setLocalVariable("b1", &b1);
setLocalVariable("h1", &h1);
setLocalVariable("s1", &s1);
setLocalVariable("v1", &v1);
setLocalVariable("a1", &a1);
setLocalVariable("r2", &r2);
setLocalVariable("g2", &g2);
setLocalVariable("b2", &b2);
setLocalVariable("h2", &h2);
setLocalVariable("s2", &s2);
setLocalVariable("v2", &v2);
setLocalVariable("a2", &a2);
for (int cx = 0; cx < std::min(top->getWidth(),bottom->getWidth()); cx++)
for (int cy = 0; cy < std::min(top->getHeight(), bottom->getHeight()); cy++)
{
x = cx;
y = cy;
if (store->mask->getValue(cx, cy) > 0)
{
Colour b = bottom->getPixel(cx, cy);
r1 = (float)b.r();
g1 = (float)b.g();
b1 = (float)b.b();
h1 = (float)b.h();
s1 = (float)b.s();
v1 = (float)b.v();
a1 = (float)b.a();
Colour t = top->getPixel(cx, cy);
r2 = (float)t.r();
g2 = (float)t.g();
b2 = (float)t.b();
h2 = (float)t.h();
s2 = (float)t.s();
v2 = (float)t.v();
a2 = (float)t.a();
Variable col = arguments[1]->getResult();
buffer->setPixel(cx, cy, *col.get<Colour>());
}
}
commitBuffer();
return Variable();
}
void SDLMouseCursor::load( ImageObject& img, const int& hotspotX, const int& hotspotY, const Color& transparentColor, const Color& invertColor )
{
if ( imageIsSystemCursor( &img ) ) {
Uint8* data = new Uint8[ (int)ceil( (double)(img.width() * img.height()) / 8 ) ];
Uint8* mask = new Uint8[ (int)ceil( (double)(img.width() * img.height()) / 8 ) ];
int bit = 1;
int i = -1;
Color black( 0, 0, 0 );
Color white( 255, 255, 255 );
//cout << "Cursor:" << endl;
for( int y = 0; y < img.height(); y++ ) {
for( int x = 0; x < img.width(); x++ ) {
Color c = img.getPixel( x, y );
if ( bit == 128 ) {
bit = 64;
}
else if ( bit == 64 )
bit = 32;
else if ( bit == 32 )
bit = 16;
else if ( bit == 16 )
bit = 8;
else if ( bit == 8 )
bit = 4;
else if ( bit == 4 )
bit = 2;
else if ( bit == 2 )
bit = 1;
else if ( bit == 1 ) {
bit = 128;
i++;
data[i] = 0;
mask[i] = 0;
}
if ( c == white ) {
//cout << ".";
mask[i] |= bit;
} else if ( c == black ) {
//cout << "X";
data[i] |= bit;
mask[i] |= bit;
} else if ( c == invertColor ) {
//cout << "0";
data[i] |= bit;
} else {
//cout << " ";
}
}
//cout << endl;
}
pCursor = SDL_CreateCursor( data, mask, img.width(), img.height(), hotspotX, hotspotY );
delete[] mask;
delete[] data;
} else {
}
}
