Mercurial > sdl-ios-xcode
view test/common.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 | 7ee5297340f7 |
children | c18c03927a77 |
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/* A simple test program framework */ #include "SDL.h" #define VERBOSE_VIDEO 0x00000001 #define VERBOSE_MODES 0x00000002 #define VERBOSE_RENDER 0x00000004 #define VERBOSE_EVENT 0x00000008 #define VERBOSE_AUDIO 0x00000010 typedef struct { /* SDL init flags */ char **argv; Uint32 flags; Uint32 verbose; /* Video info */ const char *videodriver; int display; const char *window_title; Uint32 window_flags; int window_x; int window_y; int window_w; int window_h; int depth; int refresh_rate; int num_windows; SDL_WindowID *windows; /* Renderer info */ const char *renderdriver; Uint32 render_flags; SDL_bool skip_renderer; /* Audio info */ const char *audiodriver; SDL_AudioSpec audiospec; } CommonState; extern CommonState *CommonCreateState(char **argv, Uint32 flags); extern int CommonArg(CommonState * state, int index); extern const char *CommonUsage(CommonState * state); extern SDL_bool CommonInit(CommonState * state); extern void CommonEvent(CommonState * state, SDL_Event * event, int *done); extern void CommonQuit(CommonState * state);