MapTemplatePixelKernel MapGenerator::getKernel(const Surface& surface, const ::Int2& position) const {
const Int2 positionL = position + Int2(-1, 0);
const Int2 positionR = position + Int2( 1, 0);
const Int2 positionD = position + Int2( 0, -1);
const Int2 positionU = position + Int2( 0, 1);
return MapTemplatePixelKernel(
surface[position],
surface.isInside(positionL) ? surface[positionL] : RGBA32(0, 0, 0, 0),
surface.isInside(positionR) ? surface[positionR] : RGBA32(0, 0, 0, 0),
surface.isInside(positionD) ? surface[positionD] : RGBA32(0, 0, 0, 0),
surface.isInside(positionU) ? surface[positionU] : RGBA32(0, 0, 0, 0)
);
}
uint32_t Image::GetPixel( int32_t x, int32_t y )
{
if ( this->pixels )
{
uint8_t * pix = this->GetPixelPointer( x, y );
if (pix)
{
return (uint32_t)RGBA32(pix[0], pix[1], pix[2], pix[3]);
}
}
return 0;
}
void Image::toSurface(flowerpot::Surface& surface, const Real exposure) {
lock_guard<mutex> lock(_dataLock);
if (surface.getWidth() != getWidth() || surface.getHeight() != surface.getHeight()) {
surface = Surface(getWidth(), getHeight());
}
surface.loop([&](RGBA32& pixel, const int x, const int y) {
pixel = RGBA32(
sampleComponentToPixelComponent(at(x, y).color.x, exposure),
sampleComponentToPixelComponent(at(x, y).color.y, exposure),
sampleComponentToPixelComponent(at(x, y).color.z, exposure),
255
);
});
}
Color toColor(const WebKit::WebColor& color)
{
return WebCore::Color(RGBA32(color));
}
uint32_t getPixel( uint8_t * pixels, int32_t p )
{
uint8_t * pix = pixels;
pix += (p*4);
return (uint32_t)RGBA32(pix[0], pix[1], pix[2], pix[3]);
}