From 7bf181bf98b5cdb38251efac681277015ceaf2d5 Mon Sep 17 00:00:00 2001 From: Joost Peters Date: Fri, 9 Oct 2009 12:10:08 +0000 Subject: Slightly modified version of patch #2875544: PSP plugins patch svn-id: r44822 --- backends/plugins/psp/psp-provider.cpp | 109 ++++++++++++++++++++++++++++++++++ backends/plugins/psp/psp-provider.h | 46 ++++++++++++++ 2 files changed, 155 insertions(+) create mode 100644 backends/plugins/psp/psp-provider.cpp create mode 100644 backends/plugins/psp/psp-provider.h (limited to 'backends/plugins/psp') diff --git a/backends/plugins/psp/psp-provider.cpp b/backends/plugins/psp/psp-provider.cpp new file mode 100644 index 0000000000..4478d61023 --- /dev/null +++ b/backends/plugins/psp/psp-provider.cpp @@ -0,0 +1,109 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#if defined(DYNAMIC_MODULES) && defined(__PSP__) + +#include "backends/plugins/psp/psp-provider.h" +#include "backends/plugins/dynamic-plugin.h" +#include "common/fs.h" + +#include "backends/platform/psp/psploader.h" + + +class PSPPlugin : public DynamicPlugin { +protected: + void *_dlHandle; + Common::String _filename; + + virtual VoidFunc findSymbol(const char *symbol) { + void *func = dlsym(_dlHandle, symbol); + if (!func) + warning("Failed loading symbol '%s' from plugin '%s' (%s)", symbol, _filename.c_str(), dlerror()); + + // FIXME HACK: This is a HACK to circumvent a clash between the ISO C++ + // standard and POSIX: ISO C++ disallows casting between function pointers + // and data pointers, but dlsym always returns a void pointer. For details, + // see e.g. . + assert(sizeof(VoidFunc) == sizeof(func)); + VoidFunc tmp; + memcpy(&tmp, &func, sizeof(VoidFunc)); + return tmp; + } + +public: + PSPPlugin(const Common::String &filename) + : _dlHandle(0), _filename(filename) {} + + ~PSPPlugin() { + if (_dlHandle) unloadPlugin(); + } + + bool loadPlugin() { + assert(!_dlHandle); + _dlHandle = dlopen(_filename.c_str(), RTLD_LAZY); + + if (!_dlHandle) { + warning("Failed loading plugin '%s' (%s)", _filename.c_str(), dlerror()); + return false; + } + + bool ret = DynamicPlugin::loadPlugin(); + + if (ret) + dlforgetsyms(_dlHandle); + + return ret; + } + + void unloadPlugin() { + DynamicPlugin::unloadPlugin(); + if (_dlHandle) { + if (dlclose(_dlHandle) != 0) + warning("Failed unloading plugin '%s' (%s)", _filename.c_str(), dlerror()); + _dlHandle = 0; + } + } +}; + + +Plugin* PSPPluginProvider::createPlugin(const Common::FSNode &node) const { + return new PSPPlugin(node.getPath()); +} + +bool PSPPluginProvider::isPluginFilename(const Common::FSNode &node) const { + // Check the plugin suffix + Common::String filename = node.getName(); + fprintf(stderr, "Testing name %s", filename.c_str()); + if (!filename.hasSuffix(".PLG") && !filename.hasSuffix(".plg")) { + fprintf(stderr," fail.\n"); + return false; + } + + fprintf(stderr," success!\n"); + return true; +} + + +#endif // defined(DYNAMIC_MODULES) && defined(__PSP__) diff --git a/backends/plugins/psp/psp-provider.h b/backends/plugins/psp/psp-provider.h new file mode 100644 index 0000000000..33271d0b89 --- /dev/null +++ b/backends/plugins/psp/psp-provider.h @@ -0,0 +1,46 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#ifndef BACKENDS_PLUGINS_PSP_PSP_PROVIDER_H +#define BACKENDS_PLUGINS_PSP_PSP_PROVIDER_H + +#include "base/plugins.h" + +#if defined(DYNAMIC_MODULES) && defined(__PSP__) + +class PSPPluginProvider : public FilePluginProvider { +protected: + Plugin* createPlugin(const Common::FSNode &node) const; + + bool isPluginFilename(const Common::FSNode &node) const; + + virtual void addCustomDirectories(Common::StringList &dirs) const { + dirs.push_back("/"); + } +}; + +#endif // defined(DYNAMIC_MODULES) && defined(__PSP__) + +#endif /* BACKENDS_PLUGINS_PSP_PSP_PROVIDER_H */ -- cgit v1.2.3