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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.
*
*/
#ifndef GNAP_RESOURCE_H
#define GNAP_RESOURCE_H
#include "common/array.h"
#include "common/events.h"
#include "common/file.h"
#include "common/memstream.h"
#include "common/str.h"
#include "common/stream.h"
#include "common/substream.h"
#include "common/system.h"
#include "graphics/surface.h"
#include "gnap/datarchive.h"
namespace Gnap {
enum {
kResTypeSprite = 0,
kResTypeBitmap = 1,
kResTypeSound = 2,
kResTypeSequence = 3
};
struct SequenceFrame {
int16 _duration;
bool _isScaled;
Common::Rect _rect;
int32 _spriteId;
int32 _soundId;
int32 _unusedVal;
void loadFromStream(Common::MemoryReadStream &stream);
};
struct SequenceAnimation {
int16 _unusedVal1;
int16 _unusedVal2;
int32 _additionalDelay;
int16 _framesCount;
int16 _maxTotalDuration;
SequenceFrame *frames;
SequenceAnimation() : frames(nullptr) {}
~SequenceAnimation() { delete[] frames; }
void loadFromStream(Common::MemoryReadStream &stream);
};
class SequenceResource {
public:
SequenceResource(int resourceId, byte *data, uint32 size);
~SequenceResource();
public:
uint32 _unusedVal1;
int32 _sequenceId;
int32 _defaultId;
int32 _sequenceId2;
uint32 _defaultId2;
uint32 _flags;
int32 _totalDuration;
int16 _xOffs;
int16 _yOffs;
int32 _animationsCount;
SequenceAnimation *_animations;
};
class SpriteResource {
public:
SpriteResource(int resourceId, byte *data, uint32 size);
~SpriteResource();
public:
byte *_data;
byte *_pixels;
uint32 *_palette;
int16 _width, _height;
uint16 _unknownVal1;
uint16 _unknownVal2;
bool _transparent;
uint16 _colorsCount;
};
class SoundResource {
public:
SoundResource(int resourceId, byte *data, uint32 size);
~SoundResource();
public:
byte *_data;
uint32 _size;
};
template <class ResourceClass, int ResourceType, bool FreeAfterLoad>
class ResourceCacheTemplate {
public:
ResourceCacheTemplate(DatManager *dat) : _dat(dat) {
}
~ResourceCacheTemplate() {
}
ResourceClass *get(int resourceId) {
Resource *resource = find(resourceId);
if (!resource) {
debug(1, "Loading resource type %d with ID %08X from disk", ResourceType, resourceId);
resource = new Resource(load(resourceId));
_cache[resourceId] = resource;
} else {
debug(1, "Resource type %d with ID %08X was in cache", ResourceType, resourceId);
}
resource->_isLocked = true;
return resource->_obj;
}
void release(int resourceId) {
Resource *resource = find(resourceId);
if (resource)
resource->_isLocked = false;
}
void purge(bool force = false) {
debug("Count before purge: %d", _cache.size());
for (CacheMapIterator it = _cache.begin(); it != _cache.end(); ++it) {
Resource *resource = it->_value;
if (force || !resource->_isLocked) {
delete resource;
_cache.erase(it);
}
}
debug("Count after purge: %d", _cache.size());
}
protected:
struct Resource {
ResourceClass *_obj;
bool _isLocked;
Resource(ResourceClass *obj) : _obj(obj), _isLocked(false) {}
~Resource() { delete _obj; }
};
typedef Common::HashMap<int, Resource*> CacheMap;
typedef typename CacheMap::iterator CacheMapIterator;
DatManager *_dat;
CacheMap _cache;
Resource *find(int resourceId) {
CacheMapIterator it = _cache.find(resourceId);
if (it != _cache.end())
return it->_value;
return nullptr;
}
ResourceClass *load(int resourceId) {
if (_dat->getResourceType(resourceId) != ResourceType) {
error("ResourceCache::load() Wrong resource type: Expected %d, got %d", ResourceType, _dat->getResourceType(resourceId));
return nullptr;
}
byte *resourceData = _dat->loadResource(resourceId);
uint32 resourceSize = _dat->getResourceSize(resourceId);
ResourceClass *obj = new ResourceClass(resourceId, resourceData, resourceSize);
if (FreeAfterLoad)
delete[] resourceData;
return obj;
}
};
typedef ResourceCacheTemplate<SpriteResource, kResTypeSprite, false> SpriteCache;
typedef ResourceCacheTemplate<SoundResource, kResTypeSound, false> SoundCache;
typedef ResourceCacheTemplate<SequenceResource, kResTypeSequence, true> SequenceCache;
} // End of namespace Gnap
#endif // GNAP_RESOURCE_H
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