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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 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.
*
* $URL$
* $Id$
*
*/
#include "common/system.h"
#include "sword25/gfx/graphicengine.h"
#include "sword25/fmv/movieplayer.h"
#include "sword25/input/inputengine.h"
#include "sword25/kernel/kernel.h"
#include "sword25/kernel/persistenceservice.h"
#include "sword25/kernel/service_ids.h"
#include "sword25/package/packagemanager.h"
#include "sword25/script/script.h"
#include "sword25/sfx/soundengine.h"
namespace Sword25 {
#define BS_LOG_PREFIX "KERNEL"
BS_Kernel *BS_Kernel::_Instance = 0;
BS_Kernel::BS_Kernel() :
_pWindow(NULL),
_Running(false),
_pResourceManager(NULL),
_InitSuccess(false) {
// Log that the kernel is beign created
BS_LOGLN("created.");
// Read the BS_SERVICE_TABLE and prepare kernel structures
for (uint i = 0; i < BS_SERVICE_COUNT; i++) {
// Is the superclass already registered?
Superclass *pCurSuperclass = NULL;
Common::Array<Superclass *>::iterator Iter;
for (Iter = _SuperclassList.begin(); Iter != _SuperclassList.end(); ++Iter)
if ((*Iter)->GetIdentifier() == BS_SERVICE_TABLE[i].SuperclassIdentifier) {
pCurSuperclass = *Iter;
break;
}
// If the superclass isn't already registered, then add it in
if (!pCurSuperclass)
_SuperclassList.push_back(new Superclass(this, BS_SERVICE_TABLE[i].SuperclassIdentifier));
}
// Create window object
_pWindow = BS_Window::CreateBSWindow(0, 0, 0, 0, false);
if (!_pWindow) {
BS_LOG_ERRORLN("Failed to create the window.");
} else
BS_LOGLN("Window created.");
// Create the resource manager
_pResourceManager = new BS_ResourceManager(this);
// Initialise the script engine
BS_ScriptEngine *pScript = static_cast<BS_ScriptEngine *>(NewService("script", "lua"));
if (!pScript || !pScript->Init()) {
_InitSuccess = false;
return;
}
// Register kernel script bindings
if (!_RegisterScriptBindings()) {
BS_LOG_ERRORLN("Script bindings could not be registered.");
_InitSuccess = false;
return;
}
BS_LOGLN("Script bindings registered.");
_InitSuccess = true;
}
BS_Kernel::~BS_Kernel() {
// Services are de-registered in reverse order of creation
while (!_ServiceCreationOrder.empty()) {
Superclass *superclass = GetSuperclassByIdentifier(_ServiceCreationOrder.top());
if (superclass) superclass->DisconnectService();
_ServiceCreationOrder.pop();
}
// Empty the Superclass list
while (_SuperclassList.size()) {
delete _SuperclassList.back();
_SuperclassList.pop_back();
}
// Release the window object
delete _pWindow;
BS_LOGLN("Window destroyed.");
// Resource-Manager freigeben
delete _pResourceManager;
BS_LOGLN("destroyed.");
}
// Service Methoden
// ----------------
BS_Kernel::Superclass::Superclass (BS_Kernel* pKernel, const Common::String& Identifier) :
_pKernel(pKernel),
_Identifier(Identifier),
_ServiceCount(0),
_ActiveService(NULL)
{
for (unsigned int i = 0; i < BS_SERVICE_COUNT; i++)
if (BS_SERVICE_TABLE[i].SuperclassIdentifier == _Identifier)
_ServiceCount++;
}
BS_Kernel::Superclass::~Superclass() {
DisconnectService();
}
/**
* Gets the identifier of a service with a given superclass.
* The number of services in a superclass can be learned with GetServiceCount().
* @param SuperclassIdentifier The name of the superclass
* z.B: "sfx", "gfx", "package" ...
* @param Number die Nummer des Services, dessen Bezeichner man erfahren will.<br>
* Hierbei ist zu beachten, dass der erste Service die Nummer 0 erh�lt. Number muss also eine Zahl zwischen
* 0 und GetServiceCount() - 1 sein.
*/
Common::String BS_Kernel::Superclass::GetServiceIdentifier(unsigned int Number) {
if (Number > _ServiceCount) return NULL;
unsigned int CurServiceOrd = 0;
for (unsigned int i = 0; i < BS_SERVICE_COUNT; i++) {
if (BS_SERVICE_TABLE[i].SuperclassIdentifier == _Identifier)
if (Number == CurServiceOrd)
return BS_SERVICE_TABLE[i].ServiceIdentifier;
else
CurServiceOrd++;
}
return Common::String("");
}
/**
* Creates a new service with the given identifier. Returns a pointer to the service, or null if the
* service could not be created
* Note: All services must be registered in service_ids.h, otherwise they cannot be created here
* @param SuperclassIdentifier The name of the superclass of the service
* z.B: "sfx", "gfx", "package" ...
* @param ServiceIdentifier The name of the service
* For the superclass "sfx" an example could be "Fmod" or "directsound"
*/
BS_Service *BS_Kernel::Superclass::NewService(const Common::String &ServiceIdentifier) {
for (unsigned int i = 0; i < BS_SERVICE_COUNT; i++)
if (BS_SERVICE_TABLE[i].SuperclassIdentifier == _Identifier &&
BS_SERVICE_TABLE[i].ServiceIdentifier == ServiceIdentifier)
{
BS_Service* NewService = BS_SERVICE_TABLE[i].CreateMethod(_pKernel);
if (NewService)
{
DisconnectService();
BS_LOGLN("Service '%s' created from superclass '%s'.", ServiceIdentifier.c_str(), _Identifier.c_str());
_ActiveService = NewService;
_ActiveServiceName = BS_SERVICE_TABLE[i].ServiceIdentifier;
return _ActiveService;
}
else
{
BS_LOG_ERRORLN("Failed to create service '%s' from superclass '%s'.", ServiceIdentifier.c_str(), _Identifier.c_str());
return NULL;
}
}
BS_LOG_ERRORLN("Service '%s' is not avaliable from superclass '%s'.", ServiceIdentifier.c_str(), _Identifier.c_str());
return NULL;
}
/**
* Ends the current service of a superclass. Returns true on success, and false if the superclass
* does not exist or if not service was active
* @param SuperclassIdentfier The name of the superclass which is to be disconnected
* z.B: "sfx", "gfx", "package" ...
*/
bool BS_Kernel::Superclass::DisconnectService() {
if (_ActiveService) {
delete _ActiveService;
_ActiveService = 0;
BS_LOGLN("Active service '%s' disconnected from superclass '%s'.", _ActiveServiceName.c_str(), _Identifier.c_str());
return true;
}
return false;
}
BS_Kernel::Superclass *BS_Kernel::GetSuperclassByIdentifier(const Common::String &Identifier) {
Common::Array<Superclass*>::iterator Iter;
for (Iter = _SuperclassList.begin(); Iter != _SuperclassList.end(); ++Iter) {
if ((*Iter)->GetIdentifier() == Identifier)
return *Iter;
}
// BS_LOG_ERRORLN("Superclass '%s' does not exist.", Identifier.c_str());
return NULL;
}
/**
* Returns the number of register superclasses
*/
unsigned int BS_Kernel::GetSuperclassCount() {
return _SuperclassList.size();
}
/**
* Returns the name of a superclass with the specified index.
* Note: The number of superclasses can be retrieved using GetSuperclassCount
* @param Number The number of the superclass to return the identifier for.
* It should be noted that the number should be between 0 und GetSuperclassCount() - 1.
*/
Common::String BS_Kernel::GetSuperclassIdentifier(unsigned int Number) {
if (Number > _SuperclassList.size()) return NULL;
unsigned int CurSuperclassOrd = 0;
Common::Array<Superclass*>::iterator Iter;
for (Iter = _SuperclassList.begin(); Iter != _SuperclassList.end(); ++Iter) {
if (CurSuperclassOrd == Number)
return ((*Iter)->GetIdentifier());
CurSuperclassOrd++;
}
return Common::String("");
}
/**
* Returns the number of services registered with a given superclass
* @param SuperclassIdentifier The name of the superclass
* z.B: "sfx", "gfx", "package" ...
*/
unsigned int BS_Kernel::GetServiceCount(const Common::String & SuperclassIdentifier) {
Superclass *pSuperclass;
if (!(pSuperclass = GetSuperclassByIdentifier(SuperclassIdentifier)))
return 0;
return pSuperclass->GetServiceCount();
}
/**
* Gets the identifier of a service with a given superclass.
* The number of services in a superclass can be learned with GetServiceCount().
* @param SuperclassIdentifier The name of the superclass
* z.B: "sfx", "gfx", "package" ...
* @param Number die Nummer des Services, dessen Bezeichner man erfahren will.<br>
* Hierbei ist zu beachten, dass der erste Service die Nummer 0 erh�lt. Number muss also eine Zahl zwischen
* 0 und GetServiceCount() - 1 sein.
*/
Common::String BS_Kernel::GetServiceIdentifier(const Common::String & SuperclassIdentifier, unsigned int Number) {
Superclass* pSuperclass;
if (!(pSuperclass = GetSuperclassByIdentifier(SuperclassIdentifier))) return NULL;
return (pSuperclass->GetServiceIdentifier(Number));
}
/**
* Creates a new service with the given identifier. Returns a pointer to the service, or null if the
* service could not be created
* Note: All services must be registered in service_ids.h, otherwise they cannot be created here
* @param SuperclassIdentifier The name of the superclass of the service
* z.B: "sfx", "gfx", "package" ...
* @param ServiceIdentifier The name of the service
* For the superclass "sfx" an example could be "Fmod" or "directsound"
*/
BS_Service *BS_Kernel::NewService(const Common::String& SuperclassIdentifier, const Common::String& ServiceIdentifier) {
Superclass *pSuperclass;
if (!(pSuperclass = GetSuperclassByIdentifier(SuperclassIdentifier))) return NULL;
// Die Reihenfolge merken, in der Services erstellt werden, damit sie sp�ter in umgekehrter Reihenfolge entladen werden k�nnen.
_ServiceCreationOrder.push(SuperclassIdentifier);
return pSuperclass->NewService(ServiceIdentifier);
}
/**
* Ends the current service of a superclass. Returns true on success, and false if the superclass
* does not exist or if not service was active
* @param SuperclassIdentfier The name of the superclass which is to be disconnected
* z.B: "sfx", "gfx", "package" ...
*/
bool BS_Kernel::DisconnectService(const Common::String& SuperclassIdentifier) {
Superclass *pSuperclass;
if (!(pSuperclass = GetSuperclassByIdentifier(SuperclassIdentifier))) return false;
return pSuperclass->DisconnectService();
}
/**
* Returns a pointer to the currently active service object of a superclass
* @param SuperclassIdentfier The name of the superclass
* z.B: "sfx", "gfx", "package" ...
*/
BS_Service *BS_Kernel::GetService(const Common::String& SuperclassIdentifier) {
Superclass *pSuperclass;
if (!(pSuperclass = GetSuperclassByIdentifier(SuperclassIdentifier))) return NULL;
return (pSuperclass->GetActiveService());
}
/**
* Returns the name of the currentl active service object of a superclass.
* If an error occurs, then an empty string is returned
* @param SuperclassIdentfier The name of the superclass
* z.B: "sfx", "gfx", "package" ...
*/
Common::String BS_Kernel::GetActiveServiceIdentifier(const Common::String& SuperclassIdentifier) {
Superclass * pSuperclass = GetSuperclassByIdentifier(SuperclassIdentifier);
if (!pSuperclass) return Common::String("");
return (pSuperclass->GetActiveServiceName());
}
// -----------------------------------------------------------------------------
/**
* Returns a random number
* @param Min The minimum allowed value
* @param Max The maximum allowed value
*/
int BS_Kernel::GetRandomNumber(int Min, int Max) {
BS_ASSERT(Min <= Max);
return Min + _rnd.getRandomNumber(Max - Min + 1);
}
/**
* Returns the elapsed time since startup in milliseconds
*/
unsigned int BS_Kernel::GetMilliTicks() {
return g_system->getMillis();
}
/**
* Returns the elapsed time since the system start in microseconds.
* This method should be used only if GetMilliTick() for the desired application is inaccurate.
*/
uint64 BS_Kernel::GetMicroTicks() {
return g_system->getMillis() * 1000;
}
// Other methods
// -----------------
/**
* Returns how much memory is being used
*/
size_t BS_Kernel::GetUsedMemory() {
return 0;
#ifdef SCUMMVM_DISABLED_CODE
PROCESS_MEMORY_COUNTERS pmc;
pmc.cb = sizeof(pmc);
if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)))
{
return pmc.WorkingSetSize;
}
else
{
BS_LOG_ERRORLN("Call to GetProcessMemoryInfo() failed. Error code: %d", GetLastError());
return 0;
}
#endif
}
// -----------------------------------------------------------------------------
/**
* Returns a pointer to the active Gfx Service, or NULL if no Gfx service is active
*/
BS_GraphicEngine * BS_Kernel::GetGfx() {
return static_cast<BS_GraphicEngine *>(GetService("gfx"));
}
// -----------------------------------------------------------------------------
/**
* Returns a pointer to the active Sfx Service, or NULL if no Sfx service is active
*/
BS_SoundEngine * BS_Kernel::GetSfx() {
return static_cast<BS_SoundEngine *>(GetService("sfx"));
}
// -----------------------------------------------------------------------------
/**
* Returns a pointer to the active input service, or NULL if no input service is active
*/
BS_InputEngine * BS_Kernel::GetInput() {
return static_cast<BS_InputEngine *>(GetService("input"));
}
// -----------------------------------------------------------------------------
/**
* Returns a pointer to the active package manager, or NULL if no manager is active
*/
BS_PackageManager * BS_Kernel::GetPackage() {
return static_cast<BS_PackageManager *>(GetService("package"));
}
// -----------------------------------------------------------------------------
/**
* Returns a pointer to the script engine, or NULL if it is not active
*/
BS_ScriptEngine * BS_Kernel::GetScript() {
return static_cast<BS_ScriptEngine *>(GetService("script"));
}
// -----------------------------------------------------------------------------
/**
* Returns a pointer to the movie player, or NULL if it is not active
*/
BS_MoviePlayer * BS_Kernel::GetFMV() {
return static_cast<BS_MoviePlayer *>(GetService("fmv"));
}
// -----------------------------------------------------------------------------
void BS_Kernel::Sleep(unsigned int Msecs) const {
g_system->delayMillis(Msecs);
}
} // End of namespace Sword25
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