Mercurial > sdl-ios-xcode
view src/thread/win32/win_ce_semaphore.h @ 940:bb1588ebe47b
Date: Sat, 10 Jul 2004 21:02:33 +0200
From: "Philippe Plantier (ayin)"
Subject: [SDL] Problems allocating large surfaces
There are problems when allocating large surfaces using SDL_CreateRGBSurface.
When, for example, we try to allocate a surface wider than 16384 pixels,
the calculation of the pitch overflows; this leads to a surface that
has the w and h flags correctly set, but whose "pixels" buffer is too
small. That may lead to heap corruption.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 21 Aug 2004 05:29:45 +0000 (2004-08-21) |
| parents | 13ee9f4834ea |
| children | 782fd950bd46 c121d94672cb |
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/* win_ce_semaphore.h - header file to go with win_ce_semaphore.c */ typedef struct _SYNCH_HANDLE_STRUCTURE { HANDLE hEvent; HANDLE hMutex; HANDLE hSemph; LONG MaxCount; volatile LONG CurCount; LPCTSTR lpName; } SYNCH_HANDLE_STRUCTURE, *SYNCHHANDLE; #define SYNCH_HANDLE_SIZE sizeof (SYNCH_HANDLE_STRUCTURE) /* Error codes - all must have bit 29 set */ #define SYNCH_ERROR 0X20000000 /* EXERCISE - REFINE THE ERROR NUMBERS */ extern SYNCHHANDLE CreateSemaphoreCE (LPSECURITY_ATTRIBUTES, LONG, LONG, LPCTSTR); extern BOOL ReleaseSemaphoreCE (SYNCHHANDLE, LONG, LPLONG); extern DWORD WaitForSemaphoreCE (SYNCHHANDLE, DWORD); extern BOOL CloseSynchHandle (SYNCHHANDLE);