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Fixed handling the bitmap color depth for scaled subtitles

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This commit is contained in:
Klaus Schmidinger
2011-04-17 14:40:58 +02:00
parent c670c0645f
commit 914b04c1d2
5 changed files with 29 additions and 10 deletions
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6
osd.c
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@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: osd.c 2.20 2011/03/27 11:52:12 kls Exp $
* $Id: osd.c 2.21 2011/04/17 14:25:07 kls Exp $
*/
#include "osd.h"
@@ -806,7 +806,7 @@ void cBitmap::ShrinkBpp(int NewBpp)
}
}
cBitmap *cBitmap::Scaled(double FactorX, double FactorY)
cBitmap *cBitmap::Scaled(double FactorX, double FactorY, bool AntiAlias)
{
// Fixed point scaling code based on www.inversereality.org/files/bitmapscaling.pdf
// by deltener@mindtremors.com
@@ -814,7 +814,7 @@ cBitmap *cBitmap::Scaled(double FactorX, double FactorY)
b->Replace(*this); // copy palette
int RatioX = (Width() << 16) / b->Width();
int RatioY = (Height() << 16) / b->Height();
if (FactorX <= 1.0 && FactorY <= 1.0) {
if (!AntiAlias || FactorX <= 1.0 && FactorY <= 1.0) {
// Downscaling - no anti-aliasing:
tIndex *DestRow = b->bitmap;
int SourceY = 0;