void Mouse::updateCursor() {
if (!_surface)
return;
if (_doDeltaX) {
_surface->getDrawRect().x = filterX(_x - _drawOffset.width - _drawOffset.x + 1);
} else {
_surface->getDrawRect().x = filterX(_x + _drawOffset.x);
}
if (_doDeltaY) {
_surface->getDrawRect().y = filterY(_y - _drawOffset.height - _drawOffset.y + 1);
} else {
_surface->getDrawRect().y = filterY(_y + _drawOffset.y);
}
if (_needRefresh) {
_needRefresh = false;
_drawOffset = _mouseCursorResource.getRect();
_surface->drawMouseCursorResource(_mouseCursorResource, _frameNum / 2);
Graphics::Surface *cursorSurface = _surface->getSurface();
CursorMan.replaceCursor((const byte*)cursorSurface->pixels,
cursorSurface->w, cursorSurface->h, -_drawOffset.x, -_drawOffset.y, 0);
}
}
void FastHessian::buildResponseLayer(ResponseLayer *layer)
{
int step = layer->step();
int size = layer->filter_size();
int lobe = size/3;
float inverse_area = 1.0f/(size*size);
float Dxx, Dyy, Dxy;
int x,y;
for(y = 0; y<layer->height(); y++) {
for(x = 0; x<layer->width(); x++) {
Point p(x*step,y*step);
Dxx = filterX(p, lobe) * inverse_area;
Dyy = filterY(p, lobe) * inverse_area;
Dxy = filterXY(p, lobe) * inverse_area;
float detHess = (Dxx*Dyy - 0.81f*Dxy*Dxy); // (0.9Dxy)^2 == 0.81*Dxy*Dxy
layer->setResponse(Point(x,y), detHess);
}
}
}
void AnimatedSprite::updatePosition() {
if (!_surface)
return;
if (_doDeltaX) {
_surface->getDrawRect().x = filterX(_x - _drawOffset.x - _drawOffset.width + 1);
} else {
_surface->getDrawRect().x = filterX(_x + _drawOffset.x);
}
if (_doDeltaY) {
_surface->getDrawRect().y = filterY(_y - _drawOffset.y - _drawOffset.height + 1);
} else {
_surface->getDrawRect().y = filterY(_y + _drawOffset.y);
}
if (_needRefresh) {
_surface->drawAnimResource(_animResource, _currFrameIndex, _doDeltaX, _doDeltaY, _drawOffset.width, _drawOffset.height);
_needRefresh = false;
}
}
void StaticSprite::updatePosition() {
if (!_surface)
return;
if (_doDeltaX) {
_surface->getDrawRect().x = filterX(_x - _drawOffset.x - _drawOffset.width + 1);
} else {
_surface->getDrawRect().x = filterX(_x + _drawOffset.x);
}
if (_doDeltaY) {
_surface->getDrawRect().y = filterY(_y - _drawOffset.y - _drawOffset.height + 1);
} else {
_surface->getDrawRect().y = filterY(_y + _drawOffset.y);
}
if (_needRefresh) {
_surface->drawSpriteResourceEx(_spriteResource, _doDeltaX, _doDeltaY, _drawOffset.width, _drawOffset.height);
_needRefresh = false;
}
}