Mercurial > sdl-ios-xcode

annotate include/SDL_loadso.h @ 1675:d33dcfc3fde7 SDL-1.3

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Overlay functions are being replaced by YUV textures. If the driver doesn't support YUV textures, they can be emulated by backing the texture with an RGB texture and using the software conversion routines. Note that it doesn't make sense to lock a portion of a YV12 texture, since you'd need to return three pixel pointers and pitch values instead of the one that's available through the API. I'm guessing that's one of the reasons DirectX 9 doesn't support this format at all.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 11 Jun 2006 07:30:16 +0000
parents 4da1ee79c9af
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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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9
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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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22
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23 /**
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24 * \file SDL_loadso.h
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25 *
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26 * System dependent library loading routines
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27 *
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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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41
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42 #ifndef _SDL_loadso_h
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43 #define _SDL_loadso_h
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44
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45 #include "SDL_stdinc.h"
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46 #include "SDL_error.h"
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47
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48 #include "begin_code.h"
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49 /* Set up for C function definitions, even when using C++ */
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50 #ifdef __cplusplus
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51 /* *INDENT-OFF* */
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52 extern "C" {
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53 /* *INDENT-ON* */
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54 #endif
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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 /* Given an object handle, this function looks up the address of the
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63 * named function in the shared object and returns it. This address
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64 * is no longer valid after calling SDL_UnloadObject().
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65 */
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66 extern DECLSPEC void *SDLCALL SDL_LoadFunction(void *handle,
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67 const char *name);
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68
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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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72 /* Ends C function definitions when using C++ */
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73 #ifdef __cplusplus
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74 /* *INDENT-OFF* */
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75 }
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76 /* *INDENT-ON* */
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77 #endif
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78 #include "close_code.h"
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80 #endif /* _SDL_loadso_h */
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82 /* vi: set ts=4 sw=4 expandtab: */