+/*
+ An internal variant of AtlasPointer with more data.
+ (well, more like a wrapper)
+*/
+
+struct SourceAtlasPointer
+{
+ std::string name;
+ AtlasPointer a;
+ video::IImage *atlas_img; // The source image of the atlas
+ // Integer variants of position and size
+ v2s32 intpos;
+ v2u32 intsize;
+
+ SourceAtlasPointer(
+ const std::string &name_,
+ AtlasPointer a_=AtlasPointer(0, NULL),
+ video::IImage *atlas_img_=NULL,
+ v2s32 intpos_=v2s32(0,0),
+ v2u32 intsize_=v2u32(0,0)
+ ):
+ name(name_),
+ a(a_),
+ atlas_img(atlas_img_),
+ intpos(intpos_),
+ intsize(intsize_)
+ {
+ }
+};
+
+/*
+ SourceImageCache: A cache used for storing source images.
+*/
+
+class SourceImageCache
+{
+public:
+ void insert(const std::string &name, video::IImage *img,
+ bool prefer_local, video::IVideoDriver *driver)
+ {
+ assert(img);
+ // Remove old image
+ core::map<std::string, video::IImage*>::Node *n;
+ n = m_images.find(name);
+ if(n){
+ video::IImage *oldimg = n->getValue();
+ if(oldimg)
+ oldimg->drop();
+ }
+ // Try to use local texture instead if asked to
+ if(prefer_local){
+ std::string path = getTexturePath(name.c_str());
+ if(path != ""){
+ video::IImage *img2 = driver->createImageFromFile(path.c_str());
+ if(img2){
+ m_images[name] = img2;
+ return;
+ }
+ }
+ }
+ img->grab();
+ m_images[name] = img;
+ }
+ video::IImage* get(const std::string &name)
+ {
+ core::map<std::string, video::IImage*>::Node *n;
+ n = m_images.find(name);
+ if(n)
+ return n->getValue();
+ return NULL;
+ }
+ // Primarily fetches from cache, secondarily tries to read from filesystem
+ video::IImage* getOrLoad(const std::string &name, IrrlichtDevice *device)
+ {
+ core::map<std::string, video::IImage*>::Node *n;
+ n = m_images.find(name);
+ if(n){
+ n->getValue()->grab(); // Grab for caller
+ return n->getValue();
+ }
+ video::IVideoDriver* driver = device->getVideoDriver();
+ std::string path = getTexturePath(name.c_str());
+ if(path == ""){
+ infostream<<"SourceImageCache::getOrLoad(): No path found for \""
+ <<name<<"\""<<std::endl;
+ return NULL;
+ }
+ infostream<<"SourceImageCache::getOrLoad(): Loading path \""<<path
+ <<"\""<<std::endl;
+ video::IImage *img = driver->createImageFromFile(path.c_str());
+ // Even if could not be loaded, put as NULL
+ //m_images[name] = img;
+ if(img){
+ m_images[name] = img;
+ img->grab(); // Grab for caller
+ }
+ return img;
+ }
+private:
+ core::map<std::string, video::IImage*> m_images;
+};
+