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ui/viewgfx.cpp: Fixed some cases where no tiles would appear with tall or wide aspect ratio windows.

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This commit is contained in:
Vas Crabb 2022-05-21 18:25:43 +10:00
parent 92610fb3a3
commit be781bb886
1 changed files with 11 additions and 3 deletions
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14
src/frontend/mame/ui/viewgfx.cpp
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@ -1056,19 +1056,27 @@ uint32_t gfx_viewer::handle_gfxset(mame_ui_manager &mui, render_container &conta
float pixelscale = 0.0f;
while (xcells > 1)
{
pixelscale = (cellboxwidth / xcells) / cellxpix;
pixelscale = cellboxwidth / (xcells * cellxpix);
if (set.m_integer_scale)
pixelscale = std::floor(pixelscale);
if (0.25f <= pixelscale)
break;
xcells--;
}
set.m_columns = xcells;
if (0.0f == pixelscale)
pixelscale = cellboxwidth / (xcells * cellxpix);
// in the Y direction, we just display as many as we can
int const ycells = int(cellboxheight / (pixelscale * cellypix));
int ycells = int(cellboxheight / (pixelscale * cellypix));
if (!ycells)
{
ycells = 1;
pixelscale = cellboxheight / cellypix;
xcells = int(cellboxwidth / (pixelscale * cellxpix));
}
// now determine the actual cellbox size
set.m_columns = xcells;
cellboxwidth = std::min(cellboxwidth, xcells * pixelscale * cellxpix);
cellboxheight = std::min(cellboxheight, ycells * pixelscale * cellypix);