Mercurial > sdl-ios-xcode
view include/SDL_config_amiga.h @ 2042:3908e1f808e1
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 15:56:36 +0000 |
| parents | 4371d679ee12 |
| children |
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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 */ #ifndef _SDL_config_amiga_h #define _SDL_config_amiga_h #include "SDL_platform.h" /* This is a set of defines to configure the SDL features */ #define SDL_HAS_64BIT_TYPE 1 /* Useful headers */ #define HAVE_SYS_TYPES_H 1 #define HAVE_STDIO_H 1 #define STDC_HEADERS 1 #define HAVE_STRING_H 1 #define HAVE_INTTYPES_H 1 #define HAVE_SIGNAL_H 1 /* C library functions */ #define HAVE_MALLOC 1 #define HAVE_CALLOC 1 #define HAVE_REALLOC 1 #define HAVE_FREE 1 #define HAVE_ALLOCA 1 #define HAVE_GETENV 1 #define HAVE_PUTENV 1 #define HAVE_MEMSET 1 #define HAVE_MEMCPY 1 #define HAVE_MEMMOVE 1 #define HAVE_MEMCMP 1 /* Enable various audio drivers */ #define SDL_AUDIO_DRIVER_AHI 1 #define SDL_AUDIO_DRIVER_DISK 1 #define SDL_AUDIO_DRIVER_DUMMY 1 /* Enable various cdrom drivers */ #define SDL_CDROM_DUMMY 1 /* Enable various input drivers */ #define SDL_JOYSTICK_AMIGA 1 /* Enable various shared object loading systems */ #define SDL_LOADSO_DUMMY 1 /* Enable various threading systems */ #define SDL_THREAD_AMIGA 1 /* Enable various timer systems */ #define SDL_TIMER_AMIGA 1 /* Enable various video drivers */ #define SDL_VIDEO_DRIVER_CYBERGRAPHICS 1 #define SDL_VIDEO_DRIVER_DUMMY 1 /* Enable OpenGL support */ #define SDL_VIDEO_OPENGL 1 #endif /* _SDL_config_amiga_h */