TileSpec MapNode::getTile(v3s16 dir) { if(content_features(*this).param_type == CPT_FACEDIR_SIMPLE) dir = facedir_rotate(param1, dir); TileSpec spec; s32 dir_i = -1; if(dir == v3s16(0,0,0)) dir_i = -1; else if(dir == v3s16(0,1,0)) dir_i = 0; else if(dir == v3s16(0,-1,0)) dir_i = 1; else if(dir == v3s16(1,0,0)) dir_i = 2; else if(dir == v3s16(-1,0,0)) dir_i = 3; else if(dir == v3s16(0,0,1)) dir_i = 4; else if(dir == v3s16(0,0,-1)) dir_i = 5; if(dir_i == -1) // Non-directional spec = content_features(*this).tiles[0]; else spec = content_features(*this).tiles[dir_i]; /* If it contains some mineral, change texture id */ if(content_features(*this).param_type == CPT_MINERAL && g_texturesource) { u8 mineral = getMineral(); std::string mineral_texture_name = mineral_block_texture(mineral); if(mineral_texture_name != "") { u32 orig_id = spec.texture.id; std::string texture_name = g_texturesource->getTextureName(orig_id); //texture_name += "^blit:"; texture_name += "^"; texture_name += mineral_texture_name; u32 new_id = g_texturesource->getTextureId(texture_name); spec.texture = g_texturesource->getTexture(new_id); } } return spec; }
void TextureSource::buildMainAtlas() { infostream<<"TextureSource::buildMainAtlas()"<<std::endl; //return; // Disable (for testing) video::IVideoDriver* driver = m_device->getVideoDriver(); assert(driver); JMutexAutoLock lock(m_atlaspointer_cache_mutex); // Create an image of the right size core::dimension2d<u32> atlas_dim(1024,1024); video::IImage *atlas_img = driver->createImage(video::ECF_A8R8G8B8, atlas_dim); //assert(atlas_img); if(atlas_img == NULL) { errorstream<<"TextureSource::buildMainAtlas(): Failed to create atlas " "image; not building texture atlas."<<std::endl; return; } /* Grab list of stuff to include in the texture atlas from the main content features */ core::map<std::string, bool> sourcelist; for(u16 j=0; j<MAX_CONTENT+1; j++) { 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++) { std::string name = i.getNode()->getKey(); sourcelist[name] = true; 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; sourcelist[fulltexture] = true; } } } } infostream<<"Creating texture atlas out of textures: "; for(core::map<std::string, bool>::Iterator i = sourcelist.getIterator(); i.atEnd() == false; i++) { std::string name = i.getNode()->getKey(); infostream<<"\""<<name<<"\" "; } infostream<<std::endl; // Padding to disallow texture bleeding s32 padding = 16; s32 column_width = 256; s32 column_padding = 16; /* First pass: generate almost everything */ core::position2d<s32> pos_in_atlas(0,0); pos_in_atlas.Y = padding; for(core::map<std::string, bool>::Iterator i = sourcelist.getIterator(); i.atEnd() == false; i++) { std::string name = i.getNode()->getKey(); /*video::IImage *img = driver->createImageFromFile( getTexturePath(name.c_str()).c_str()); if(img == NULL) continue; core::dimension2d<u32> dim = img->getDimension(); // Make a copy with the right color format video::IImage *img2 = driver->createImage(video::ECF_A8R8G8B8, dim); img->copyTo(img2); img->drop();*/ // Generate image by name video::IImage *img2 = generate_image_from_scratch(name, m_device); if(img2 == NULL) { infostream<<"TextureSource::buildMainAtlas(): Couldn't generate texture atlas: Couldn't generate image \""<<name<<"\""<<std::endl; continue; } core::dimension2d<u32> dim = img2->getDimension(); // Don't add to atlas if image is large core::dimension2d<u32> max_size_in_atlas(32,32); if(dim.Width > max_size_in_atlas.Width || dim.Height > max_size_in_atlas.Height) { infostream<<"TextureSource::buildMainAtlas(): Not adding " <<"\""<<name<<"\" because image is large"<<std::endl; continue; } // Wrap columns and stop making atlas if atlas is full if(pos_in_atlas.Y + dim.Height > atlas_dim.Height) { if(pos_in_atlas.X > (s32)atlas_dim.Width - 256 - padding){ errorstream<<"TextureSource::buildMainAtlas(): " <<"Atlas is full, not adding more textures." <<std::endl; break; } pos_in_atlas.Y = padding; pos_in_atlas.X += column_width + column_padding; } infostream<<"TextureSource::buildMainAtlas(): Adding \""<<name <<"\" to texture atlas"<<std::endl; // Tile it a few times in the X direction u16 xwise_tiling = column_width / dim.Width; if(xwise_tiling > 16) // Limit to 16 (more gives no benefit) xwise_tiling = 16; for(u32 j=0; j<xwise_tiling; j++) { // Copy the copy to the atlas img2->copyToWithAlpha(atlas_img, pos_in_atlas + v2s32(j*dim.Width,0), core::rect<s32>(v2s32(0,0), dim), video::SColor(255,255,255,255), NULL); } // Copy the borders a few times to disallow texture bleeding for(u32 side=0; side<2; side++) // top and bottom for(s32 y0=0; y0<padding; y0++) for(s32 x0=0; x0<(s32)xwise_tiling*(s32)dim.Width; x0++) { s32 dst_y; s32 src_y; if(side==0) { dst_y = y0 + pos_in_atlas.Y + dim.Height; src_y = pos_in_atlas.Y + dim.Height - 1; } else { dst_y = -y0 + pos_in_atlas.Y-1; src_y = pos_in_atlas.Y; } s32 x = x0 + pos_in_atlas.X; video::SColor c = atlas_img->getPixel(x, src_y); atlas_img->setPixel(x,dst_y,c); } img2->drop(); /* Add texture to caches */ // Get next id u32 id = m_atlaspointer_cache.size(); // Create AtlasPointer AtlasPointer ap(id); ap.atlas = NULL; // Set on the second pass ap.pos = v2f((float)pos_in_atlas.X/(float)atlas_dim.Width, (float)pos_in_atlas.Y/(float)atlas_dim.Height); ap.size = v2f((float)dim.Width/(float)atlas_dim.Width, (float)dim.Width/(float)atlas_dim.Height); ap.tiled = xwise_tiling; // 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); // Increment position pos_in_atlas.Y += dim.Height + padding * 2; } /* Make texture */ video::ITexture *t = driver->addTexture("__main_atlas__", atlas_img); assert(t); /* Second pass: set texture pointer in generated AtlasPointers */ for(core::map<std::string, bool>::Iterator i = sourcelist.getIterator(); i.atEnd() == false; i++) { std::string name = i.getNode()->getKey(); if(m_name_to_id.find(name) == NULL) continue; u32 id = m_name_to_id[name]; //infostream<<"id of name "<<name<<" is "<<id<<std::endl; m_atlaspointer_cache[id].a.atlas = t; } /* Write image to file so that it can be inspected */ /*std::string atlaspath = porting::path_userdata + DIR_DELIM + "generated_texture_atlas.png"; infostream<<"Removing and writing texture atlas for inspection to " <<atlaspath<<std::endl; fs::RecursiveDelete(atlaspath); driver->writeImageToFile(atlas_img, atlaspath.c_str());*/ }