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annotate include/SDL_loadso.h @ 4427:eada7e321df6 SDL-1.2

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Fixed bug #943 Ozkan Sezer 2010-02-06 12:31:06 PST Hi: Here are some small fixes for compiling SDL against mingw-w64. (see http://mingw-w64.sourceforge.net/ . Despite the name, it supports both win32 and win64.) Two patches, one for SDL-1.2 and one for SDL-1.3 attached. src/audio/windx5/directx.h and src/video/windx5/directx.h (both SDL-1.2 and SDL-1.3.) I get compilation errors about some union not having a member named u1 and alike, because of other system headers being included before this one and them already defining DUMMYUNIONNAME and stuff. This header probably assumes that those stuff are defined in windef.h, but mingw-w64 headers define them in _mingw.h. Easily fixed by moving NONAMELESSUNION definition to the top of the file. SDL_dx5yuv.c (SDL-1.2-only) also needs to include the header before SDL_video.h to avoid the same problem. src/thread/win32/SDL_systhread.c (both SDL-1.2 and SDL-1.3.) : The __GNUC__ case for pfnSDL_CurrentBeginThread is 32-bit centric because _beginthreadex returns uintptr_t, not unsigned long which is 32 bits in win64. Changing the return type to uintptr_t fixes it. Hope these are useful. Thanks.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Mar 2010 15:04:13 +0000
parents 4c4113c2162c
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1 /*
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2 SDL - Simple DirectMedia Layer
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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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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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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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23 /** @file SDL_loadso.h
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24 * System dependent library loading routines
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25 */
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27 /** @file SDL_loadso.h
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28 * Some things to keep in mind:
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29 * - These functions only work on C function names. Other languages may
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30 * have name mangling and intrinsic language support that varies from
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31 * compiler to compiler.
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32 * - Make sure you declare your function pointers with the same calling
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33 * convention as the actual library function. Your code will crash
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34 * mysteriously if you do not do this.
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35 * - Avoid namespace collisions. If you load a symbol from the library,
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36 * it is not defined whether or not it goes into the global symbol
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37 * namespace for the application. If it does and it conflicts with
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38 * symbols in your code or other shared libraries, you will not get
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39 * the results you expect. :)
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40 */
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43 #ifndef _SDL_loadso_h
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44 #define _SDL_loadso_h
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46 #include "SDL_stdinc.h"
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47 #include "SDL_error.h"
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49 #include "begin_code.h"
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50 /* Set up for C function definitions, even when using C++ */
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51 #ifdef __cplusplus
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52 extern "C" {
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53 #endif
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54
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55 /**
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56 * This function dynamically loads a shared object and returns a pointer
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57 * to the object handle (or NULL if there was an error).
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58 * The 'sofile' parameter is a system dependent name of the object file.
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59 */
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60 extern DECLSPEC void * SDLCALL SDL_LoadObject(const char *sofile);
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62 /**
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63 * Given an object handle, this function looks up the address of the
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64 * named function in the shared object and returns it. This address
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65 * is no longer valid after calling SDL_UnloadObject().
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66 */
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67 extern DECLSPEC void * SDLCALL SDL_LoadFunction(void *handle, const char *name);
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69 /** Unload a shared object from memory */
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70 extern DECLSPEC void SDLCALL SDL_UnloadObject(void *handle);
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71
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72 /* Ends C function definitions when using C++ */
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73 #ifdef __cplusplus
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74 }
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75 #endif
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76 #include "close_code.h"
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78 #endif /* _SDL_loadso_h */