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| author | Klaus Schmidinger <vdr@tvdr.de> | 2018-04-06 08:51:16 +0200 |
|---|---|---|
| committer | Klaus Schmidinger <vdr@tvdr.de> | 2018-04-06 08:51:16 +0200 |
| commit | bac9c655155d90c36f0111dbcda349e4a329d344 (patch) | |
| tree | b36372f603bb4097243b111e54e95c5e2ec99a8b /osd.c | |
| parent | 5b9b09a90e6c4fcb7f1af59368d6255dc7a3b942 (diff) | |
| download | vdr-bac9c655155d90c36f0111dbcda349e4a329d344.tar.gz vdr-bac9c655155d90c36f0111dbcda349e4a329d344.tar.bz2 | |
Fixed scaling bitmaps with very small factors
Diffstat (limited to 'osd.c')
| -rw-r--r-- | osd.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: osd.c 4.4 2018/01/25 15:09:09 kls Exp $ + * $Id: osd.c 4.5 2018/04/06 08:43:15 kls Exp $ */ #include "osd.h" @@ -839,7 +839,9 @@ cBitmap *cBitmap::Scaled(double FactorX, double FactorY, bool AntiAlias) const { // Fixed point scaling code based on www.inversereality.org/files/bitmapscaling.pdf // by deltener@mindtremors.com - cBitmap *b = new cBitmap(int(round(Width() * FactorX)), int(round(Height() * FactorY)), Bpp(), X0(), Y0()); + int w = max(1, int(round(Width() * FactorX))); + int h = max(1, int(round(Height() * FactorY))); + cBitmap *b = new cBitmap(w, h, Bpp(), X0(), Y0()); int RatioX = (Width() << 16) / b->Width(); int RatioY = (Height() << 16) / b->Height(); if (!AntiAlias || FactorX <= 1.0 && FactorY <= 1.0) { |