Mercurial > sdl-ios-xcode
view src/video/nanox/SDL_nxmouse.c @ 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 | c121d94672cb |
children | 99210400e8b9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga Copyright (C) 2001 Hsieh-Fu Tsai This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org Hsieh-Fu Tsai clare@setabox.com */ #include "SDL_config.h" #include "../../events/SDL_events_c.h" #include "SDL_nxmouse_c.h" // The implementation dependent data for the window manager cursor struct WMcursor { int unused; }; WMcursor * NX_CreateWMCursor(_THIS, Uint8 * data, Uint8 * mask, int w, int h, int hot_x, int hot_y) { WMcursor *cursor; Dprintf("enter NX_CreateWMCursor\n"); cursor = (WMcursor *) SDL_malloc(sizeof(WMcursor)); if (cursor == NULL) { SDL_OutOfMemory(); return NULL; } Dprintf("leave NX_CreateWMCursor\n"); return cursor; } void NX_FreeWMCursor(_THIS, WMcursor * cursor) { Dprintf("NX_FreeWMCursor\n"); SDL_free(cursor); return; } void NX_WarpWMCursor(_THIS, Uint16 x, Uint16 y) { GR_WINDOW_INFO info; Dprintf("enter NX_WarpWMCursor\n"); SDL_Lock_EventThread(); GrGetWindowInfo(SDL_Window, &info); GrMoveCursor(info.x + x, info.y + y); SDL_Unlock_EventThread(); Dprintf("leave NX_WarpWMCursor\n"); } int NX_ShowWMCursor(_THIS, WMcursor * cursor) { Dprintf("NX_ShowWMCursor\n"); return 1; } /* vi: set ts=4 sw=4 expandtab: */