void F_MotionBlur::applyFilter(PixelBuffer *canvas)
{
ColorData newPixel;
copyCanvas(canvas);
for(int curX = 0; curX < canvas->getWidth(); curX++)
{
for(int curY = 0; curY < canvas->getHeight(); curY++)
{
newPixel = getBlurredColor(curX, curY);
canvas->setPixel(curX, curY, newPixel);
}
}
freeTempCanvas();
}
void Canvas::copyScaleCanvas(const Canvas* canvas, const Rect& src, const Rect& dst)
{
if (src.size == dst.size)
{
copyCanvas(canvas, src, dst.origin);
return;
}
if (dst.size.w <= 0 || dst.size.h <= 0)
return;
XTransform xform = {{
{ XDoubleToFixed((double)src.size.w / dst.size.w), XDoubleToFixed(0), XDoubleToFixed(src.origin.x) },
{ XDoubleToFixed(0), XDoubleToFixed((double)src.size.h / dst.size.h), XDoubleToFixed(src.origin.y) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}};
XRenderSetPictureTransform(display()->xdisplay(), canvas->xpicture(), &xform);
Point offset = absolutePosition();
XRenderComposite(
display()->xdisplay(), PictOpOver,
canvas->xpicture(), None, xpicture(),
0, 0,
0, 0,
dst.origin.x + offset.x, dst.origin.y + offset.y,
dst.size.w, dst.size.h
);
XTransform identity = {{
{ XDoubleToFixed(1), XDoubleToFixed(0), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(1), XDoubleToFixed(0) },
{ XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(1) },
}};
XRenderSetPictureTransform(display()->xdisplay(), canvas->xpicture(), &identity);
}
void Canvas::drawImage(const Image* image, const Point& origin, bool copyArea)
{
copyCanvas(image, Rect(Point(0, 0), image->size()), origin, copyArea);
}
