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) * 0.5f;
        m_viewOffset = round(viewOffset);
}
 
} // namespace openmsx