Mercurial > sdl-ios-xcode
view src/video/photon/SDL_ph_modes_c.h @ 3880:74e828c64315 SDL-1.2
Fixed bug #292
I might be on crack here.
It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and
right channels of a stereo stream together, and clamps the new mono channel if
it would overflow.
Shouldn't it be dividing by 2 to average the two sample points instead of
clamping? Otherwise the mono sample point's volume doubles in the conversion.
This would also make the conversion faster, as it replaces two branches per
sample frame with a bitwise shift.
--ryan.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 24 Sep 2006 15:45:37 +0000 |
parents | d910939febfa |
children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef __SDL_PH_MODES_H__ #define __SDL_PH_MODES_H__ #include "SDL_ph_video.h" #define PH_MAX_VIDEOMODES 127 #define PH_ENTER_DIRECTMODE 0 #define PH_IGNORE_DIRECTMODE 1 extern SDL_Rect **ph_ListModes(_THIS,SDL_PixelFormat *format, Uint32 flags); extern void ph_FreeVideoModes(_THIS); extern int ph_ResizeFullScreen(_THIS); extern int ph_EnterFullScreen(_THIS, SDL_Surface* screen, int fmode); extern int ph_LeaveFullScreen(_THIS); extern int ph_GetVideoMode(int width, int height, int bpp); extern int get_mode_any_format(int width, int height, int bpp); extern int ph_ToggleFullScreen(_THIS, int on); #endif /* __SDL_PH_MODES_H__ */