#include "log.h"
#include "mapnode.h" // For texture atlas making
#include "mineral.h" // For texture atlas making
-#include "mapnode_contentfeatures.h" // For texture atlas making
+#include "nodedef.h" // For texture atlas making
+#include "gamedef.h"
/*
A cache from texture name to texture path
TextureSource
*/
+class TextureSource : public IWritableTextureSource
+{
+public:
+ TextureSource(IrrlichtDevice *device);
+ ~TextureSource();
+
+ /*
+ Example case:
+ Now, assume a texture with the id 1 exists, and has the name
+ "stone.png^mineral1".
+ Then a random thread calls getTextureId for a texture called
+ "stone.png^mineral1^crack0".
+ ...Now, WTF should happen? Well:
+ - getTextureId strips off stuff recursively from the end until
+ the remaining part is found, or nothing is left when
+ something is stripped out
+
+ But it is slow to search for textures by names and modify them
+ like that?
+ - ContentFeatures is made to contain ids for the basic plain
+ textures
+ - Crack textures can be slow by themselves, but the framework
+ must be fast.
+
+ Example case #2:
+ - Assume a texture with the id 1 exists, and has the name
+ "stone.png^mineral1" and is specified as a part of some atlas.
+ - Now MapBlock::getNodeTile() stumbles upon a node which uses
+ texture id 1, and finds out that NODEMOD_CRACK must be applied
+ with progression=0
+ - It finds out the name of the texture with getTextureName(1),
+ appends "^crack0" to it and gets a new texture id with
+ getTextureId("stone.png^mineral1^crack0")
+
+ */
+
+ /*
+ Gets a texture id from cache or
+ - if main thread, from getTextureIdDirect
+ - if other thread, adds to request queue and waits for main thread
+ */
+ u32 getTextureId(const std::string &name);
+
+ /*
+ Example names:
+ "stone.png"
+ "stone.png^crack2"
+ "stone.png^blit:mineral_coal.png"
+ "stone.png^blit:mineral_coal.png^crack1"
+
+ - If texture specified by name is found from cache, return the
+ cached id.
+ - Otherwise generate the texture, add to cache and return id.
+ Recursion is used to find out the largest found part of the
+ texture and continue based on it.
+
+ The id 0 points to a NULL texture. It is returned in case of error.
+ */
+ u32 getTextureIdDirect(const std::string &name);
+
+ /*
+ Finds out the name of a cached texture.
+ */
+ std::string getTextureName(u32 id);
+
+ /*
+ If texture specified by the name pointed by the id doesn't
+ exist, create it, then return the cached texture.
+
+ Can be called from any thread. If called from some other thread
+ and not found in cache, the call is queued to the main thread
+ for processing.
+ */
+ AtlasPointer getTexture(u32 id);
+
+ AtlasPointer getTexture(const std::string &name)
+ {
+ return getTexture(getTextureId(name));
+ }
+
+ // Gets a separate texture
+ video::ITexture* getTextureRaw(const std::string &name)
+ {
+ AtlasPointer ap = getTexture(name);
+ return ap.atlas;
+ }
+
+ /*
+ Update new texture pointer and texture coordinates to an
+ AtlasPointer based on it's texture id
+ */
+ void updateAP(AtlasPointer &ap);
+
+ /*
+ Build the main texture atlas which contains most of the
+ textures.
+
+ This is called by the constructor.
+ */
+ void buildMainAtlas(class IGameDef *gamedef);
+
+ /*
+ Processes queued texture requests from other threads.
+
+ Shall be called from the main thread.
+ */
+ void processQueue();
+
+private:
+
+ // The id of the thread that is allowed to use irrlicht directly
+ threadid_t m_main_thread;
+ // The irrlicht device
+ IrrlichtDevice *m_device;
+
+ // A texture id is index in this array.
+ // The first position contains a NULL texture.
+ core::array<SourceAtlasPointer> m_atlaspointer_cache;
+ // Maps a texture name to an index in the former.
+ core::map<std::string, u32> m_name_to_id;
+ // The two former containers are behind this mutex
+ JMutex m_atlaspointer_cache_mutex;
+
+ // Main texture atlas. This is filled at startup and is then not touched.
+ video::IImage *m_main_atlas_image;
+ video::ITexture *m_main_atlas_texture;
+
+ // Queued texture fetches (to be processed by the main thread)
+ RequestQueue<std::string, u32, u8, u8> m_get_texture_queue;
+};
+
+IWritableTextureSource* createTextureSource(IrrlichtDevice *device)
+{
+ return new TextureSource(device);
+}
+
TextureSource::TextureSource(IrrlichtDevice *device):
m_device(device),
m_main_atlas_image(NULL),
// Add a NULL AtlasPointer as the first index, named ""
m_atlaspointer_cache.push_back(SourceAtlasPointer(""));
m_name_to_id[""] = 0;
-
- // Build main texture atlas
- if(g_settings->getBool("enable_texture_atlas"))
- buildMainAtlas();
- else
- infostream<<"Not building texture atlas."<<std::endl;
}
TextureSource::~TextureSource()
return m_atlaspointer_cache[id].a;
}
-void TextureSource::buildMainAtlas()
+void TextureSource::updateAP(AtlasPointer &ap)
{
+ AtlasPointer ap2 = getTexture(ap.id);
+ ap = ap2;
+}
+
+void TextureSource::buildMainAtlas(class IGameDef *gamedef)
+{
+ assert(gamedef->tsrc() == this);
+ INodeDefManager *ndef = gamedef->ndef();
+
infostream<<"TextureSource::buildMainAtlas()"<<std::endl;
//return; // Disable (for testing)
{
if(j == CONTENT_IGNORE || j == CONTENT_AIR)
continue;
- ContentFeatures *f = &content_features(j);
- for(core::map<std::string, bool>::Iterator
- i = f->used_texturenames.getIterator();
- i.atEnd() == false; i++)
+ const ContentFeatures &f = ndef->get(j);
+ for(std::set<std::string>::const_iterator
+ i = f.used_texturenames.begin();
+ i != f.used_texturenames.end(); i++)
{
- std::string name = i.getNode()->getKey();
+ std::string name = *i;
sourcelist[name] = true;
- if(f->often_contains_mineral){
+ if(f.often_contains_mineral){
for(int k=1; k<MINERAL_COUNT; k++){
std::string mineraltexture = mineral_block_texture(k);
std::string fulltexture = name + "^" + mineraltexture;
Add texture to caches
*/
- // Get next id
+ bool reuse_old_id = false;
u32 id = m_atlaspointer_cache.size();
+ // Check old id without fetching a texture
+ core::map<std::string, u32>::Node *n;
+ n = m_name_to_id.find(name);
+ // If it exists, we will replace the old definition
+ if(n){
+ id = n->getValue();
+ reuse_old_id = true;
+ }
+ infostream<<"TextureSource::buildMainAtlas(): "
+ <<"Replacing old AtlasPointer"<<std::endl;
// Create AtlasPointer
AtlasPointer ap(id);
// Create SourceAtlasPointer and add to containers
SourceAtlasPointer nap(name, ap, atlas_img, pos_in_atlas, dim);
- m_atlaspointer_cache.push_back(nap);
- m_name_to_id.insert(name, id);
+ if(reuse_old_id)
+ m_atlaspointer_cache[id] = nap;
+ else
+ m_atlaspointer_cache.push_back(nap);
+ m_name_to_id[name] = id;
// Increment position
pos_in_atlas.Y += dim.Height + padding * 2;
projects / oweals / minetest.git / blobdiff