100 lines
3.7 KiB
C++
100 lines
3.7 KiB
C++
/*
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* Copyright (c) 2002-2004 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <dlfcn.h>
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#include "extxcursor.h"
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#include "common_tools.h"
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static void * xcursor_handle = NULL;
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static const char *xcursor_lib_name = "libXcursor.so.1";
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static bool load_success;
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XcursorSupportsARGBPROC XcursorSupportsARGB = NULL;
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XcursorSupportsAnimPROC XcursorSupportsAnim = NULL;
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XcursorImageCreatePROC XcursorImageCreate = NULL;
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XcursorImageDestroyPROC XcursorImageDestroy = NULL;
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XcursorImagesCreatePROC XcursorImagesCreate = NULL;
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XcursorImagesDestroyPROC XcursorImagesDestroy = NULL;
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XcursorImagesLoadCursorPROC XcursorImagesLoadCursor = NULL;
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static void * loadHandle(const char * func_name) {
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void * func_pointer = dlsym(xcursor_handle, func_name);
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if (func_pointer == NULL) {
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load_success = false;
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return NULL;
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}
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return func_pointer;
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}
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static bool loadFunctionPointers(void) {
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load_success = true;
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XcursorSupportsARGB = (XcursorSupportsARGBPROC)loadHandle("XcursorSupportsARGB");
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XcursorSupportsAnim = (XcursorSupportsAnimPROC)loadHandle("XcursorSupportsAnim");
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XcursorImageCreate = (XcursorImageCreatePROC)loadHandle("XcursorImageCreate");
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XcursorImageDestroy = (XcursorImageDestroyPROC)loadHandle("XcursorImageDestroy");
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XcursorImagesCreate = (XcursorImagesCreatePROC)loadHandle("XcursorImagesCreate");
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XcursorImagesDestroy = (XcursorImagesDestroyPROC)loadHandle("XcursorImagesDestroy");
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XcursorImagesLoadCursor = (XcursorImagesLoadCursorPROC)loadHandle("XcursorImagesLoadCursor");
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return load_success;
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}
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bool loadXcursor(void) {
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load_success = false;
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xcursor_handle = dlopen(xcursor_lib_name, RTLD_GLOBAL | RTLD_LAZY);
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if (xcursor_handle == NULL) {
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printfDebug("Could not load %s: %s\n", xcursor_lib_name, dlerror());
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return load_success;
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}
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loadFunctionPointers();
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return load_success;
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}
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bool isXcursorLoaded(void) {
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return load_success;
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}
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void closeXcursor(void) {
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if (load_success) {
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load_success = false;
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dlclose(xcursor_handle);
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xcursor_handle = NULL;
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XcursorSupportsARGB = NULL;
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XcursorSupportsAnim = NULL;
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XcursorImageCreate = NULL;
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XcursorImageDestroy = NULL;
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XcursorImagesCreate = NULL;
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XcursorImagesDestroy = NULL;
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XcursorImagesLoadCursor = NULL;
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}
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}
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