Mercurial > sdl-ios-xcode
annotate src/audio/dummy/SDL_dummyaudio.h @ 4392:2b8c1aea633b SDL-1.2
Fixed bug #898
Jeremiah Morris 2009-12-09 16:07:17 PST
No-op GlobalToLocal translations in fullscreen mode
On my MacBook Pro running 10.6, I noticed a small upward bias on mouse movement
in a fullscreen SDL application. The app uses WarpCursor and GetMouseState in a
loop to measure relative movement. I tracked it down to NSWindow's
convertBaseToScreen: routine, which added a 2-pixel offset on the Y coordinate
instead of the expected (+0,+0) translation.
In fullscreen mode, QZ_PrivateWarpCursor() does not translate the desired
position through QZ_PrivateGlobalToLocal() before passing it to the Core
Graphics system. However, QZ_GetMouseLocation() does call the reverse
QZ_PrivateLocalToGlobal() even in fullscreen mode. This asymmetry caused
problems each time the mouse was moved.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Fri, 11 Dec 2009 15:31:37 +0000 |
parents | a1b03ba2fcd0 |
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rev | line source |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #ifndef _SDL_dummyaudio_h |
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25 #define _SDL_dummyaudio_h |
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26 |
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27 #include "../SDL_sysaudio.h" |
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28 |
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29 /* Hidden "this" pointer for the video functions */ |
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30 #define _THIS SDL_AudioDevice *this |
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31 |
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32 struct SDL_PrivateAudioData { |
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33 /* The file descriptor for the audio device */ |
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34 Uint8 *mixbuf; |
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35 Uint32 mixlen; |
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36 Uint32 write_delay; |
1537
60620d71e324
Corrected dummy audio callback firing to be realistic, cleaned up tabs.
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37 Uint32 initial_calls; |
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38 }; |
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39 |
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40 #endif /* _SDL_dummyaudio_h */ |