mirror of
https://github.com/Ryujinx/SDL.git
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118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_DIRECTFB
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#include "SDL_DirectFB_video.h"
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#include "SDL_DirectFB_dyn.h"
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#ifdef SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC
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#include "SDL_name.h"
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#include "SDL_loadso.h"
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#define DFB_SYM(ret, name, args, al, func) ret (*name) args;
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static struct _SDL_DirectFB_Symbols
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{
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DFB_SYMS
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const unsigned int *directfb_major_version;
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const unsigned int *directfb_minor_version;
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const unsigned int *directfb_micro_version;
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} SDL_DirectFB_Symbols;
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#undef DFB_SYM
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#define DFB_SYM(ret, name, args, al, func) ret name args { func SDL_DirectFB_Symbols.name al ; }
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DFB_SYMS
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#undef DFB_SYM
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static void *handle = NULL;
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int
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SDL_DirectFB_LoadLibrary(void)
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{
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int retval = 0;
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if (handle == NULL) {
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handle = SDL_LoadObject(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC);
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if (handle != NULL) {
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retval = 1;
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#define DFB_SYM(ret, name, args, al, func) if (!(SDL_DirectFB_Symbols.name = SDL_LoadFunction(handle, # name))) retval = 0;
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DFB_SYMS
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#undef DFB_SYM
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if (!
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(SDL_DirectFB_Symbols.directfb_major_version =
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SDL_LoadFunction(handle, "directfb_major_version")))
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retval = 0;
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if (!
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(SDL_DirectFB_Symbols.directfb_minor_version =
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SDL_LoadFunction(handle, "directfb_minor_version")))
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retval = 0;
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if (!
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(SDL_DirectFB_Symbols.directfb_micro_version =
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SDL_LoadFunction(handle, "directfb_micro_version")))
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retval = 0;
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}
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}
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if (retval) {
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const char *stemp = DirectFBCheckVersion(DIRECTFB_MAJOR_VERSION,
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DIRECTFB_MINOR_VERSION,
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DIRECTFB_MICRO_VERSION);
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/* Version Check */
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if (stemp != NULL) {
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fprintf(stderr,
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"DirectFB Lib: Version mismatch. Compiled: %d.%d.%d Library %d.%d.%d\n",
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DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION,
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DIRECTFB_MICRO_VERSION,
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*SDL_DirectFB_Symbols.directfb_major_version,
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*SDL_DirectFB_Symbols.directfb_minor_version,
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*SDL_DirectFB_Symbols.directfb_micro_version);
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retval = 0;
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}
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}
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if (!retval)
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SDL_DirectFB_UnLoadLibrary();
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return retval;
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}
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void
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SDL_DirectFB_UnLoadLibrary(void)
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{
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if (handle != NULL) {
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SDL_UnloadObject(handle);
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handle = NULL;
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}
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}
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#else
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int
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SDL_DirectFB_LoadLibrary(void)
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{
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return 1;
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}
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void
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SDL_DirectFB_UnLoadLibrary(void)
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{
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}
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#endif
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#endif /* SDL_VIDEO_DRIVER_DIRECTFB */
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