OutputSurface.cc

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#include "OutputSurface.hh"
#include "endian.hh"
 
namespace openmsx {
 
void OutputSurface::calculateViewPort(gl::ivec2 logSize_, gl::ivec2 physSize_)
{
        m_logicalSize = logSize_;
        m_physSize = physSize_;
 
        gl::vec2 logSize(logSize_); // convert int->float
        gl::vec2 physSize(physSize_);
 
        float scale = min_component(physSize / logSize);
        m_viewScale = gl::vec2(scale); // for now always same X and Y scale
 
        gl::vec2 viewSize = logSize * scale;
        m_viewSize = round(viewSize);
 
        gl::vec2 viewOffset = (physSize - viewSize) / 2.0f;
        m_viewOffset = round(viewOffset);
}
 
void OutputSurface::setOpenGlPixelFormat()
{
        setPixelFormat(PixelFormat(
                32,
                Endian::BIG ? 0xFF000000 : 0x000000FF, Endian::BIG ? 24 :  0, 0,
                Endian::BIG ? 0x00FF0000 : 0x0000FF00, Endian::BIG ? 16 :  8, 0,
                Endian::BIG ? 0x0000FF00 : 0x00FF0000, Endian::BIG ?  8 : 16, 0,
                Endian::BIG ? 0x000000FF : 0xFF000000, Endian::BIG ?  0 : 24, 0));
}
 
} // namespace openmsx