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/* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
// Disable symbol overrides so that we can use system headers.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "common/scummsys.h"
#if defined(DYNAMIC_MODULES) && defined(PSP2)
#include <psp2/kernel/modulemgr.h>
#include "backends/plugins/psp2/psp2-provider.h"
#include "backends/plugins/psp2/psp2-plugin.h"
#include "common/debug.h"
#include "common/fs.h"
// HACK: This is needed so that standard library functions that are only
// used in plugins can be found in the main executable.
#include <cxxabi.h>
void *forceLinkFunctions[] = {
// Select the nothrow variant
(void *)(void *(*)(std::size_t, std::nothrow_t const&))operator new [],
(void *)coshf,
(void *)fgetc,
(void *)frexpf,
(void *)getc,
(void *)log2f,
(void *)mbstowcs,
// Select the double version
(void *)(double (*)(double))nearbyint,
(void *)rename,
(void *)sinhf,
(void *)strcoll,
(void *)strspn,
(void *)tanhf,
(void *)vsprintf,
(void *)wcstombs,
(void *)__cxxabiv1::__cxa_bad_cast,
(void *)__cxxabiv1::__cxa_finalize,
(void *)__cxxabiv1::__cxa_guard_acquire,
(void *)__cxxabiv1::__cxa_guard_release,
(void *)__cxxabiv1::__cxa_guard_abort
};
class PSP2Plugin final : public Plugin {
protected:
SceUID _modId;
const Common::Path _filename;
public:
PSP2Plugin(const Common::Path &filename)
: _filename(filename), _modId(0) {}
bool loadPlugin() override {
assert(!_modId);
PSP2FunctionPointers *functions = nullptr;
PSP2FunctionPointers **arg = &functions;
int status = 0;
_modId = sceKernelLoadStartModule(_filename.toString(Common::Path::kNativeSeparator).c_str(), sizeof( arg ), &arg, 0, NULL, &status );
if (!_modId) {
debug("Failed loading plugin '%s' (error code %d)", _filename.toString(Common::Path::kNativeSeparator).c_str(), status);
return false;
} else {
debug(1, "Success loading plugin '%s', handle %08x", _filename.toString(Common::Path::kNativeSeparator).c_str(), _modId);
}
// Validate the Vita version
if (!functions) {
debug("Failed loading plugin '%s': no pointer", _filename.toString(Common::Path::kNativeSeparator).c_str());
unloadPlugin();
return false;
}
if (functions->version != PSP2FunctionPointers_VERSION) {
debug("Failed loading plugin '%s': unexpected version %d", _filename.toString(Common::Path::kNativeSeparator).c_str(), functions->version);
unloadPlugin();
return false;
}
// Validate the plugin API version
int32 version = functions->PLUGIN_getVersion();
if (version != PLUGIN_VERSION) {
warning("Plugin uses a different API version (you have: '%d', needed is: '%d')", version, PLUGIN_VERSION);
unloadPlugin();
return false;
}
// Get the type of the plugin
_type = (PluginType)functions->PLUGIN_getType();
if (_type >= PLUGIN_TYPE_MAX) {
warning("Plugin type unknown: %d", _type);
unloadPlugin();
return false;
}
// Validate the plugin type API version
int32 typeVersion = functions->PLUGIN_getTypeVersion();
if (typeVersion != pluginTypeVersions[_type]) {
warning("Plugin uses a different type API version (you have: '%d', needed is: '%d')", typeVersion, pluginTypeVersions[_type]);
unloadPlugin();
return false;
}
// Get the plugin object
_pluginObject = functions->PLUGIN_getObject();
if (!_pluginObject) {
warning("Couldn't get the plugin object");
unloadPlugin();
return false;
}
debug(1, "Successfully loaded plugin '%s'", _filename.toString(Common::Path::kNativeSeparator).c_str());
return true;
}
void unloadPlugin() override {
delete _pluginObject;
if (_modId) {
int status = 0;
int ret = sceKernelStopUnloadModule(_modId, 0, NULL, 0, NULL, &status);
if (ret != SCE_OK) {
debug("Failed unloading plugin '%s': %d/%d", _filename.toString(Common::Path::kNativeSeparator).c_str(), ret, status);
}
_modId = 0;
}
}
Common::Path getFileName() const override {
return _filename;
}
};
Plugin* PSP2PluginProvider::createPlugin(const Common::FSNode &node) const {
return new PSP2Plugin(node.getPath());
}
void PSP2PluginProvider::addCustomDirectories(Common::FSList &dirs) const {
dirs.push_back(Common::FSNode("app0:/plugins"));
}
#endif // defined(DYNAMIC_MODULES) && defined(PSP2)
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