summaryrefslogtreecommitdiff
path: root/src/resources/resourcemanager.cpp
blob: b26aeb5dbc4265dba3cdf6ace8c2e1a0aaeed31c (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 "../main.h"
#include "resourcemanager.h"
#include "../log.h"
#include <iostream>
#include <sstream>
#include <physfs.h>

#ifdef WIN32
#include <io.h>
#include <direct.h>
#else
#include <unistd.h>
#include <dirent.h>
#endif

ResourceEntry::ResourceEntry():
    resource(NULL)
{
}

ResourceManager *ResourceManager::instance = NULL;

ResourceManager::ResourceManager()
{
    // Add zip files to PhysicsFS
    searchAndAddZipFiles();
}

ResourceManager::~ResourceManager()
{
    // Create our resource iterator.
    std::map<std::string, ResourceEntry>::iterator iter = resources.begin();
    int danglingResources = 0;
    int danglingReferences = 0;

    // Iterate through and release references until objects are deleted.
    while (iter != resources.end()) {
        Resource *res = iter->second.resource;
        danglingResources++;
        danglingReferences++;
        while (!res->decRef()) {
            danglingReferences++;
        }
        iter++;
    }
    resources.clear();

    logger.log("ResourceManager::~ResourceManager() cleaned up %d references "
            "to %d resources", danglingReferences, danglingResources);
}

Resource* ResourceManager::get(const E_RESOURCE_TYPE &type,
        const std::string &idPath, int flags)
{
    // Check if the id exists, and return the value if it does.
    std::map<std::string, ResourceEntry>::iterator resIter =
        resources.find(idPath);

    if (resIter != resources.end() && resIter->second.resource) {
        resIter->second.resource->incRef();
        return resIter->second.resource;
    }

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

    Resource *resource = NULL;

    // Create an object of the specified type.
    switch (type)
    {
        case MAP:
            logger.log("Warning: Map resource not supported.");
            break;
        case MUSIC:
            {
                // Load the music resource file
                int fileSize;
                void *buffer = loadFile(idPath, fileSize);

                if (buffer != NULL)
                {
                    // Let the music class load it
                    resource = Music::load(buffer, fileSize);

                    // Cleanup
                    free(buffer);
                }
                else {
                    logger.log("Warning: resource doesn't exist!");
                }
            }
            break;
        case IMAGE:
            {
                // Load the image resource file
                int fileSize;
                void *buffer = loadFile(idPath, fileSize);

                if (buffer != NULL)
                {
                    // Let the image class load it
                    resource = Image::load(buffer, fileSize, flags);

                    // Cleanup
                    free(buffer);
                }
                else {
                    logger.log("Warning: resource doesn't exist!");
                }
            }
            break;
        case SCRIPT:
            logger.log("Warning: Script resource not supported.");
            break;
        case TILESET:
            logger.log("Warning: Tileset resource not supported.");
            break;
        case SOUND_EFFECT:
            {
                // Load the sample resource file
                int fileSize;
                void *buffer = loadFile(idPath, fileSize);

                if (buffer != NULL)
                {
                    // Let the sound effect class load it
                    resource = SoundEffect::load(buffer, fileSize);

                    // Cleanup
                    free(buffer);
                }
                else {
                    logger.log("Warning: resource doesn't exist!");
                }
            }
            break;
        default: 
            logger.log("Warning: Unknown resource type");
            break;
    }

    if (resource) {
        resource->incRef();

        // Create the resource entry for this object.
        ResourceEntry entry;
        entry.filePath = idPath;
        entry.resource = resource;

        resources[idPath] = entry;
    }

    // Return NULL if the object could not be created.
    return resource;
}

Image *ResourceManager::getImage(const std::string &idPath, int flags)
{
    return (Image*)get(IMAGE, idPath, flags);
}

Music *ResourceManager::getMusic(const std::string &idPath)
{
      return (Music*)get(MUSIC, idPath, 0);
}

SoundEffect *ResourceManager::getSoundEffect(const std::string &idPath)
{
      return (SoundEffect*)get(SOUND_EFFECT, idPath, 0);
}

ResourceManager* ResourceManager::getInstance()
{
    // Create a new instance if necessary.
    if (instance == NULL) instance = new ResourceManager();
    return instance;
}

void ResourceManager::deleteInstance()
{
    if (instance != NULL) {
        delete instance;
        instance = NULL;
    }
}

void ResourceManager::searchAndAddZipFiles()
{
    // Add the main data directory to our PhysicsFS search path
    PHYSFS_addToSearchPath("data", 1);

    // Define the path in which to search
    std::string searchString = std::string("data/*.zip");

#ifdef _WIN32
    // Create our find file data structure
    struct _finddata_t findFileInfo;

    // Find the first zipped file
    long handle =
        static_cast<long>(::_findfirst(searchString.c_str(), &findFileInfo));
    long file = handle;

    // Loop until all files we're searching for are found
    while (file >= 0) {
        // Define the file path string
        std::string filePath = std::string("data/") +
            std::string(findFileInfo.name);

        logger.log("Adding to PhysicsFS: %s", findFileInfo.name);

        // Add the zip file to our PhysicsFS search path
        PHYSFS_addToSearchPath(filePath.c_str(), 1);

        // Find the next file
        file = ::_findnext(handle, &findFileInfo);
    }

    // Shutdown findfile stuff
    ::_findclose(handle);
#else
    // Retrieve the current path
    char programPath[256];
    getcwd(programPath, 256);
    strncat(programPath, "/data", 256 - strlen(programPath) - 1);

    // Create our directory structure
    DIR *dir = opendir(programPath);

    // Return if the directory is invalid
    if (dir == NULL) {
        return;
    }

    struct dirent *direntry;
    while ((direntry = readdir(dir)) != NULL) {
        char *ext = strstr(direntry->d_name, ".zip");
        if (ext != NULL && strcmp(ext, ".zip") == 0) {
            // Define the file path string
            std::string filePath = std::string(programPath) +
                std::string("/") + std::string(direntry->d_name);

            logger.log("Adding to PhysicsFS: %s", filePath.c_str());

            // Add the zip file to our PhysicsFS search path
            PHYSFS_addToSearchPath(filePath.c_str(), 1);
        }
    }

    closedir(dir);
#endif
}

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) return NULL;

    // Print file information message
    fileSize = PHYSFS_fileLength(file);

    // Allocate memory in the buffer and load the file
    void *buffer = malloc(fileSize);
    PHYSFS_read(file, buffer, 1, fileSize);

    // Close the file and let the user deallocate the memory (safe?)
    PHYSFS_close(file);

    return buffer;
}