summaryrefslogtreecommitdiff
path: root/src/resources/resourcemanager.cpp
blob: 6353afacc5ab7b6354d82cb4561c858c346ff536 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
/*
 *  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 "image.h"
#include "music.h"
#include "soundeffect.h"
#include "spriteset.h"

#include "../log.h"


ResourceManager *ResourceManager::instance = NULL;

ResourceManager::ResourceManager()
{
}

ResourceManager::~ResourceManager()
{
    // Release any remaining spritesets first because they depend on images
    ResourceIterator iter = mResources.begin();
    while (iter != mResources.end())
    {
        if (dynamic_cast<Spriteset*>(iter->second) != NULL)
        {
            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;
    }

    logger->log("ResourceManager::get(%s)", idPath.c_str());

    int fileSize;
    void *buffer = loadFile(idPath, fileSize);

    if (!buffer) {
        logger->log("Warning: resource doesn't exist!");
        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;
}

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)
{
    // If the file doesn't exist indicate failure
    if (!PHYSFS_exists(fileName.c_str())) {
        logger->log("Warning: %s not found!", fileName.c_str());
        return NULL;
    }

    // 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: %s failed to load!", fileName.c_str());
        return NULL;
    }

    // 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;
}