DirectScalerOutput.cc

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#include "DirectScalerOutput.hh"
#include "SDLOutputSurface.hh"
#include "MemoryOps.hh"
#include "build-info.hh"
#include <cassert>
#include <cstdint>
 
namespace openmsx {
 
template<std::unsigned_integral Pixel>
DirectScalerOutput<Pixel>::DirectScalerOutput(SDLOutputSurface& output_)
        : output(output_)
{
}
 
template<std::unsigned_integral Pixel>
std::span<Pixel> DirectScalerOutput<Pixel>::acquireLine(unsigned y)
{
        assert(pixelAccess);
        return pixelAccess->getLine<Pixel>(y).subspan(0, getWidth());
}
 
template<std::unsigned_integral Pixel>
void DirectScalerOutput<Pixel>::releaseLine(unsigned y, std::span<Pixel> buf)
{
        assert(pixelAccess);
        assert(buf.data() == pixelAccess->getLine<Pixel>(y).data());
        assert(buf.size() == getWidth());
        (void)y;
        (void)buf;
}
 
template<std::unsigned_integral Pixel>
void DirectScalerOutput<Pixel>::fillLine(unsigned y, Pixel color)
{
        assert(pixelAccess);
        MemoryOps::MemSet<Pixel> memset;
        auto dstLine = pixelAccess->getLine<Pixel>(y).subspan(0, getWidth());
        memset(dstLine, color);
}
 
 
// Force template instantiation.
#if HAVE_16BPP
template class DirectScalerOutput<uint16_t>;
#endif
#if HAVE_32BPP
template class DirectScalerOutput<uint32_t>;
#endif
 
} // namespace openmsx