void fill_impl( SurfaceT<T> *surface, const ColorAT<T> &color, const Area &area )
{
// if no alpha we'll fail over the to alpha-less fill
if( ! surface->hasAlpha() ) {
fill_impl( surface, ColorT<T>( color.r, color.g, color.b ), area );
return;
}
const Area clippedArea = area.getClipBy( surface->getBounds() );
ptrdiff_t rowBytes = surface->getRowBytes();
uint8_t pixelInc = surface->getPixelInc();
const T red = color.r, green = color.g, blue = color.b, alpha = color.a;
uint8_t redOffset = surface->getRedOffset(), greenOffset = surface->getGreenOffset(), blueOffset = surface->getBlueOffset(), alphaOffset = surface->getAlphaOffset();
for( int32_t y = clippedArea.getY1(); y < clippedArea.getY2(); ++y ) {
T *dstPtr = reinterpret_cast<T*>( reinterpret_cast<uint8_t*>( surface->getData() + clippedArea.getX1() * pixelInc ) + y * rowBytes );
for( int32_t x = 0; x < clippedArea.getWidth(); ++x ) {
dstPtr[redOffset] = red;
dstPtr[greenOffset] = green;
dstPtr[blueOffset] = blue;
dstPtr[alphaOffset] = alpha;
dstPtr += pixelInc;
}
}
}
inline void fill_impl(vector_expression<Expr>& e, T&& t) noexcept
{
using type = std::remove_cv_t<T>;
fill_impl(e, std::forward<T>(t), std::conditional_t<
and<
or <std::is_same<type, uint8_t>, std::is_same<type, int8_t>>,
std::is_same<type, typename Expr::value_type>
>::value,
vector_fill_tag_memset, vector_fill_tag_memberwise> {}
);
}
void fill( SurfaceT<T> *surface, const ColorAT<Y> &color, const Area &area )
{
ColorAT<T> nativeColor( color );
fill_impl( surface, nativeColor, area );
}
void fill( SurfaceT<T> *surface, const ColorAT<Y> &color )
{
ColorAT<T> nativeColor( color );
fill_impl( surface, nativeColor, surface->getBounds() );
}