annotate README.WinCE @ 5082:de59e0218aa2

Fixed bug #1011 Daniel Ellis 2010-06-25 15:20:31 PDT SDL based applications sometimes display the wrong application name in the Sound Preferences dialog when using pulseaudio. I can see from the code that the SDL pulse module is initiating a new pulse audio context and passing an application name using the function get_progname(). The get_progname() function returns the name of the current process. However, the process name is often not a suitable name to use. For example, the OpenShot video editor is a python application, and so "python" is displayed in the Sound Preferences window (see Bug #596504), when it should be displaying "OpenShot". PulseAudio allows applications to specify the application name, either at the time the context is created (as SDL does currently), or by special environment variables (see http://www.pulseaudio.org/wiki/ApplicationProperties). If no name is specified, then pulseaudio will determine the name based on the process. If you specify the application name when initiating the pulseaudio context, then that will override any application name specified using an environment variable. As libsdl is a library, I believe the solution is for libsdl to not specify any application name when initiating a pulseaudio context, which will enable applications to specify the application name using environment variables. In the case that the applications do not specify anything, pulseaudio will fall back to using the process name anyway. The attached patch removes the get_progname() function and passes NULL as the application name when creating the pulseaudio context, which fixes the issue.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 23 Jan 2011 21:55:04 -0800
parents 86d0d01290ea
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2 Project files for embedded Visual C++ 3.0, 4.0 and
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3 Visual Studio 2005 can be found in VisualCE.zip
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4
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5 SDL supports GAPI and WinDib output for Windows CE.
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7 GAPI driver supports:
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8
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9 - all possible WinCE devices (Pocket PC, Smartphones, HPC)
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10 with different orientations of video memory and resolutions.
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11 - 4, 8 and 16 bpp devices
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12 - special handling of 8bpp on 8bpp devices
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13 - VGA mode, you can even switch between VGA and GAPI in runtime
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14 (between 240x320 and 480x640 for example). On VGA devices you can
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15 use either GAPI or VGA.
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16 - Landscape mode and automatic rotation of buttons and stylus coordinates.
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17 To enable landscape mode make width of video screen bigger than height.
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18 For example:
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19 SDL_SetVideoMode(320,240,16,SDL_FULLSCREEN)
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20 - WM2005
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21 - SDL_ListModes
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23 NOTE:
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24 There are several SDL features not available in the WinCE port of SDL.
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25
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26 - DirectX is not yet available
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27 - Semaphores are not available
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28 - Joystick support is not available
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29 - CD-ROM control is not available
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30
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31 In addition, there are several features that run in "degraded" mode:
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32
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33 Preprocessor Symbol Effect
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34 =================== =================================
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35
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36 SDL_systimer.c:
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37 USE_GETTICKCOUNT Less accurate values for SDL time functions
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38 USE_SETTIMER Use only a single marginally accurate timer
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39
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40 SDL_syswm.c:
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41 DISABLE_ICON_SUPPORT Can't set the runtime window icon
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42
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43 SDL_sysmouse.c:
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44 USE_STATIC_CURSOR Only the arrow cursor is available
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45
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46 SDL_sysevents.c:
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47 NO_GETKEYBOARDSTATE Can't get modifier state on keyboard focus
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48
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49 SDL_dibevents.c:
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50 NO_GETKEYBOARDSTATE Very limited keycode translation
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51
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52 SDL_dibvideo.c:
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53 NO_GETDIBITS Can't distinguish between 15 bpp and 16 bpp
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54 NO_CHANGEDISPLAYSETTINGS No fullscreen support
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55 NO_GAMMA_SUPPORT Gamma correction not available