[SDL] Wince improvments

[Vincent RICHOMME]

Hi,

I am developper on windows ce platform and I have tried to compile it on 
windows mobile 5 platform.
Here is my feedback :

When compiling here are the errors I get :

------ Build started: Project: SDL, Configuration: Release Windows 
Mobile 5.0 Pocket PC SDK (ARMV4I) ------
Compiling...
SDL_dibevents.c
A - ..\..\src\video\windib\SDL_dibevents.c(279) : warning C4133: 
'function' : incompatible types - from 'char [256]' to 'LPWSTR'
B - ..\..\src\video\windib\SDL_dibevents.c(282) : warning C4133: 
'function' : incompatible types - from 'char [9]' to 'LPCWSTR'
C - ..\..\src\video\windib\SDL_dibevents.c(282) : error C2065: 
'KLF_NOTELLSHELL' : undeclared identifier
D - ..\..\src\video\windib\SDL_dibevents.c(287) : warning C4133: 
'function' : incompatible types - from 'char [256]' to 'LPCWSTR'
E - ..\..\src\video\windib\SDL_dibevents.c(421) : warning C4013: 
'MapVirtualKeyEx' undefined; assuming extern returning int
Build log was saved at 
"file://d:\Smartdev\SDL-1.2.11\VisualCE\SDL\Windows Mobile 5.0 Pocket PC 
SDK (ARMV4I)\Release\BuildLog.htm"
SDL - 1 error(s), 4 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========



About incompatible types I don't know how you handle encoding type in SDL.
You have two solutions :

1)First you can declare a macro _T("") and a TCHAR type.

2) You can do ANSI->UNICODE / UNICODE->ANSI conversion using 
mbcstowcs/wcstombs.

The first  solution would  be the best solution as it would allow SDL to 
be compiled on platform
using UNICODE natively without any loss in performance but it will force 
you to make too many changes for now.
If some maintainer could give me his opinion about  this topic.







So I will use the second solution for now :

void DIB_InitOSKeymap(_THIS)
{
    int    i;
    char    current_layout[256];

#if defined(_WIN32_WCE)
    TCHAR wszCurLayout[256];
    GetKeyboardLayoutName(wszCurLayout);
    ::wcstombs( current_layout, wszCurLayout, 256);
    //LoadKeyboardLayout is not directly supported
#else
    GetKeyboardLayoutName(current_layout);
    //printf("Initial Keyboard Layout Name: '%s'\n", current_layout);

    hLayoutUS = LoadKeyboardLayout("00000409", KLF_NOTELLSHELL);
    if (!hLayoutUS) {
        //printf("Failed to load US keyboard layout. Using current.\n");
        hLayoutUS = GetKeyboardLayout(0);
    }
    LoadKeyboardLayout(current_layout, KLF_ACTIVATE);
#endif
...
}


static int SDL_MapVirtualKey(int scancode, int vkey)
{
#if defined(_WIN32_WCE) 
    int    mvke  = MapVirtualKey(scancode & 0xFF, 1);
#else
    int    mvke  = MapVirtualKeyEx(scancode & 0xFF, 1, hLayoutUS);
#endif
...
}



After these modifications I had a linker error :

Creating library Windows Mobile 5.0 Pocket PC SDK 
(ARMV4I)\Release/SDL.lib and object Windows Mobile 5.0 Pocket PC SDK 
(ARMV4I)\Release/SDL.exp
SDL_dibvideo.obj : error LNK2001: unresolved external symbol GetMenu
Windows Mobile 5.0 Pocket PC SDK (ARMV4I)\Release/SDL.dll : fatal error 
LNK1120: 1 unresolved externals

GetMenu doesn't exist on windows ce platforms to my knowledge. You could 
use HMENU CommandBar_GetMenu() but
menu on wince are specific. Don't know if it helps.

I have found someone who has already worked on this subject, don't know 
if you have integrated his work.

Please look here : http://arisme.free.fr/ports/SDL.php