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Fix rounding errors with aspect correction

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3364
This commit is contained in:
Sjoerd van der Berg 2009-04-26 19:14:50 +00:00
parent 4263c9a9df
commit 75da889c3e
1 changed files with 7 additions and 1 deletions
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8
src/gui/render.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: render.cpp,v 1.59 2009-04-26 18:24:36 qbix79 Exp $ */
/* $Id: render.cpp,v 1.60 2009-04-26 19:14:50 harekiet Exp $ */
#include <sys/types.h>
#include <assert.h>
@ -519,6 +519,12 @@ void RENDER_SetSize(Bitu width,Bitu height,Bitu bpp,float fps,double ratio,bool
if (!width || !height || width > SCALER_MAXWIDTH || height > SCALER_MAXHEIGHT) {
return;
}
if ( ratio > 1 ) {
double target = height * ratio + 0.1;
ratio = target / height;
} else {
//This would alter the width of the screen, we don't care about rounding errors here
}
render.src.width=width;
render.src.height=height;
render.src.bpp=bpp;