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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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
* any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "resourcemanager.h"
#include <cassert>
#include <sstream>
#include <physfs.h>
#include <SDL_image.h>
#include "image.h"
#include "music.h"
#include "soundeffect.h"
#include "spriteset.h"
#include "spritedef.h"
#include "../log.h"
ResourceManager *ResourceManager::instance = NULL;
ResourceManager::ResourceManager()
{
logger->log("Initializing resource manager...");
}
ResourceManager::~ResourceManager()
{
// Release any remaining spritedefs first because they depend on spritesets
ResourceIterator iter = mResources.begin();
while (iter != mResources.end())
{
if (dynamic_cast<SpriteDef*>(iter->second) != 0)
{
cleanUp(iter->second);
ResourceIterator toErase = iter;
++iter;
mResources.erase(toErase);
}
else
{
++iter;
}
}
// Release any remaining spritesets first because they depend on images
iter = mResources.begin();
while (iter != mResources.end())
{
if (dynamic_cast<Spriteset*>(iter->second) != 0)
{
cleanUp(iter->second);
ResourceIterator toErase = iter;
++iter;
mResources.erase(toErase);
}
else
{
++iter;
}
}
// Release remaining resources, logging the number of dangling references.
while (!mResources.empty())
{
cleanUp(mResources.begin()->second);
mResources.erase(mResources.begin());
}
}
void
ResourceManager::cleanUp(Resource *res)
{
logger->log("ResourceManager::~ResourceManager() cleaning up %d "
"reference%s to %s",
res->mRefCount,
(res->mRefCount == 1) ? "" : "s",
res->mIdPath.c_str());
delete res;
}
bool
ResourceManager::setWriteDir(const std::string &path)
{
return (bool) PHYSFS_setWriteDir(path.c_str());
}
void
ResourceManager::addToSearchPath(const std::string &path, bool append)
{
logger->log("Adding to PhysicsFS: %s", path.c_str());
PHYSFS_addToSearchPath(path.c_str(), append ? 1 : 0);
}
bool
ResourceManager::mkdir(const std::string &path)
{
return (bool) PHYSFS_mkdir(path.c_str());
}
bool
ResourceManager::exists(const std::string &path)
{
return PHYSFS_exists(path.c_str());
}
bool
ResourceManager::isDirectory(const std::string &path)
{
return PHYSFS_isDirectory(path.c_str());
}
Resource*
ResourceManager::get(const E_RESOURCE_TYPE &type, const std::string &idPath)
{
// Check if the id exists, and return the value if it does.
ResourceIterator resIter = mResources.find(idPath);
if (resIter != mResources.end() && resIter->second) {
resIter->second->incRef();
return resIter->second;
}
int fileSize;
void *buffer = loadFile(idPath, fileSize);
if (!buffer) {
return NULL;
}
Resource *resource = NULL;
// Create an object of the specified type.
switch (type)
{
case MUSIC:
{
// Let the music class load it
resource = Music::load(buffer, fileSize, idPath);
}
break;
case IMAGE:
{
// Let the image class load it
resource = Image::load(buffer, fileSize, idPath);
}
break;
case SOUND_EFFECT:
{
// Let the sound effect class load it
resource = SoundEffect::load(buffer, fileSize, idPath);
}
break;
default:
/* Nothing to do here, just avoid compiler warnings... */
break;
}
free(buffer);
if (resource)
{
resource->incRef();
mResources[idPath] = resource;
}
// Returns NULL if the object could not be created.
return resource;
}
Image*
ResourceManager::getImage(const std::string &idPath)
{
return dynamic_cast<Image*>(get(IMAGE, idPath));
}
Music*
ResourceManager::getMusic(const std::string &idPath)
{
return dynamic_cast<Music*>(get(MUSIC, idPath));
}
SoundEffect*
ResourceManager::getSoundEffect(const std::string &idPath)
{
return dynamic_cast<SoundEffect*>(get(SOUND_EFFECT, idPath));
}
Spriteset*
ResourceManager::getSpriteset(const std::string &imagePath, int w, int h)
{
std::stringstream ss;
ss << imagePath << "[" << w << "x" << h << "]";
const std::string idPath = ss.str();
ResourceIterator resIter = mResources.find(idPath);
if (resIter != mResources.end()) {
resIter->second->incRef();
return dynamic_cast<Spriteset*>(resIter->second);
}
Image *img = getImage(imagePath);
if (!img) {
return NULL;
}
Spriteset *spriteset = new Spriteset(idPath, img, w, h);
spriteset->incRef();
mResources[idPath] = spriteset;
img->decRef();
return spriteset;
}
SpriteDef*
ResourceManager::getSprite(const std::string &path, int variant)
{
std::stringstream ss;
ss << path << "[" << variant << "]";
const std::string idPath = ss.str();
ResourceIterator resIter = mResources.find(idPath);
if (resIter != mResources.end()) {
resIter->second->incRef();
return dynamic_cast<SpriteDef*>(resIter->second);
}
SpriteDef *sprite = new SpriteDef(idPath, path, variant);
sprite->incRef();
mResources[idPath] = sprite;
return sprite;
}
void
ResourceManager::release(const std::string &idPath)
{
logger->log("ResourceManager::release(%s)", idPath.c_str());
ResourceIterator resIter = mResources.find(idPath);
// The resource has to exist
assert(resIter != mResources.end() && resIter->second);
mResources.erase(idPath);
}
ResourceManager*
ResourceManager::getInstance()
{
// Create a new instance if necessary.
if (instance == NULL) instance = new ResourceManager();
return instance;
}
void
ResourceManager::deleteInstance()
{
delete instance;
instance = NULL;
}
void*
ResourceManager::loadFile(const std::string &fileName, int &fileSize)
{
// Attempt to open the specified file using PhysicsFS
PHYSFS_file *file = PHYSFS_openRead(fileName.c_str());
// If the handler is an invalid pointer indicate failure
if (file == NULL) {
logger->log("Warning: Failed to load %s: %s",
fileName.c_str(), PHYSFS_getLastError());
return NULL;
}
// Log the real dir of the file
logger->log("Loaded %s/%s", PHYSFS_getRealDir(fileName.c_str()),
fileName.c_str());
// Get the size of the file
fileSize = PHYSFS_fileLength(file);
// Allocate memory and load the file
void *buffer = malloc(fileSize);
PHYSFS_read(file, buffer, 1, fileSize);
// Close the file and let the user deallocate the memory
PHYSFS_close(file);
return buffer;
}
std::vector<std::string>
ResourceManager::loadTextFile(const std::string &fileName)
{
int contentsLength;
char *fileContents = (char*)loadFile(fileName, contentsLength);
std::vector<std::string> lines;
if (!fileContents)
{
logger->log("Couldn't load text file: %s", fileName.c_str());
return lines;
}
std::istringstream iss(std::string(fileContents, contentsLength));
std::string line;
while (getline(iss, line, '\n')) {
lines.push_back(line);
}
free(fileContents);
return lines;
}
SDL_Surface*
ResourceManager::loadSDLSurface(const std::string& filename)
{
int fileSize;
void *buffer = loadFile(filename, fileSize);
SDL_Surface *tmp = NULL;
if (buffer) {
SDL_RWops *rw = SDL_RWFromMem(buffer, fileSize);
tmp = IMG_Load_RW(rw, 1);
::free(buffer);
}
return tmp;
}
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