author | ihse |
Sat, 03 Mar 2018 08:21:47 +0100 | |
branch | ihse-warnings-cflags-branch |
changeset 56230 | 489867818774 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#include <dlfcn.h> |
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#include <stdlib.h> |
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#include "jvm_md.h" |
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#include "gtk_interface.h" |
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|
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GtkApi* gtk2_load(JNIEnv *env, const char* lib_name); |
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GtkApi* gtk3_load(JNIEnv *env, const char* lib_name); |
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gboolean gtk2_check(const char* lib_name, gboolean load); |
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gboolean gtk3_check(const char* lib_name, gboolean load); |
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|
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GtkApi *gtk; |
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typedef struct { |
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GtkVersion version; |
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const char* name; |
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const char* vname; |
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GtkApi* (*load)(JNIEnv *env, const char* lib_name); |
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gboolean (*check)(const char* lib_name, gboolean load); |
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} GtkLib; |
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static GtkLib gtk_libs[] = { |
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{ |
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GTK_2, |
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JNI_LIB_NAME("gtk-x11-2.0"), |
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VERSIONED_JNI_LIB_NAME("gtk-x11-2.0", "0"), |
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>k2_load, |
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>k2_check |
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}, |
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{ |
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GTK_3, |
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JNI_LIB_NAME("gtk-3"), |
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VERSIONED_JNI_LIB_NAME("gtk-3", "0"), |
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>k3_load, |
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>k3_check |
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} |
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}; |
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static GtkLib** get_libs_order(GtkVersion version) { |
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static GtkLib** load_order; |
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static int n_libs = 0; |
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if (!n_libs) { |
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n_libs = sizeof(gtk_libs) / sizeof(GtkLib); |
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load_order = calloc(n_libs + 1, sizeof(GtkLib *)); |
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} |
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int i, first = 0; |
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for (i = 0; i < n_libs; i++) { |
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load_order[i] = >k_libs[i]; |
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if (load_order[i]->version == version) { |
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first = i; |
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} |
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} |
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if (first) { |
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for (i = first; i > 0; i--) { |
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load_order[i] = load_order[i - 1]; |
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} |
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load_order[0] = >k_libs[first]; |
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} |
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return load_order; |
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} |
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static GtkLib* get_loaded(void) { |
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GtkLib** libs = get_libs_order(GTK_ANY); |
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while(!gtk && *libs) { |
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GtkLib* lib = *libs++; |
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if (lib->check(lib->vname, /* load = */FALSE)) { |
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return lib; |
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} |
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if (lib->check(lib->name, /* load = */FALSE)) { |
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return lib; |
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} |
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} |
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return NULL; |
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} |
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gboolean gtk_load(JNIEnv *env, GtkVersion version, gboolean verbose) { |
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if (gtk == NULL) { |
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GtkLib* lib = get_loaded(); |
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if (lib) { |
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if (verbose) { |
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fprintf(stderr, "Looking for GTK%d library...\n", |
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lib->version); |
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} |
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gtk = lib->load(env, lib->vname); |
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if (!gtk) { |
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gtk = lib->load(env, lib->name); |
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} |
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} else { |
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GtkLib** libs = get_libs_order(version); |
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while (!gtk && *libs) { |
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lib = *libs++; |
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if (version == GTK_ANY || lib->version == version) { |
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if (verbose) { |
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fprintf(stderr, "Looking for GTK%d library...\n", |
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lib->version); |
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} |
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gtk = lib->load(env, lib->vname); |
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if (!gtk) { |
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gtk = lib->load(env, lib->name); |
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} |
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if (verbose && !gtk) { |
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fprintf(stderr, "Not found.\n"); |
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} |
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} |
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} |
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} |
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if (verbose) { |
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if (gtk) { |
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fprintf(stderr, "GTK%d library loaded.\n", lib->version); |
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} else { |
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fprintf(stderr, "Failed to load GTK library.\n"); |
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} |
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} |
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} |
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return gtk != NULL; |
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} |
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|
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static gboolean check_version(GtkVersion version) { |
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GtkLib** libs = get_libs_order(version); |
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while (*libs) { |
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GtkLib* lib = *libs++; |
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if (lib->check(lib->vname, /* load = */TRUE)) { |
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return TRUE; |
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} |
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if (lib->check(lib->name, /* load = */TRUE)) { |
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return TRUE; |
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} |
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} |
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return FALSE; |
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} |
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|
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gboolean gtk_check_version(GtkVersion version) { |
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if (gtk || get_loaded()) { |
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return TRUE; |
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} |
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return check_version(version); |
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} |
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162 |