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annotate README.WinCE @ 3899:081aecdb0911 SDL-1.2

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From: Gabriel Gambetta To: SDL Mailing List <sdl@libsdl.org> Date: Fri, 17 Nov 2006 00:39:29 -0200 Subject: [SDL] Alpha blending bug - fixed? It turns out mm5 never got the correct value. This failed : [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (sf->Ashift) ); mm5 got 0xFF000018 instead of 0x00000018. However I did this : Uint32 ashift = sf->Ashift; [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (ashift) ); and everything worked fine. The only thing I could find out was that ashift is 32-bit aligned but sf->Ashift isn't: printf("ashift %8X [%d]\n", &ashift, (int)(&ashift) % 4); printf("sf->Ashift %8X [%d]\n", &sf->Ashift, (int)(&sf->Ashift) % 4); ashift at BFF0E0C4 [0] sf->Ashift at 08AFB9CD [1] Could this be the problem? If it is, the fix is extremely trivial. Should I submit a patch? --Gabriel
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 21 Nov 2006 23:17:00 +0000
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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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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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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