3 Copyright (C) 2013, 2017 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #ifndef MESH_GENERATOR_THREAD_HEADER
21 #define MESH_GENERATOR_THREAD_HEADER
23 #include "mapblock_mesh.h"
24 #include "threading/mutex_auto_lock.h"
25 #include "util/thread.h"
27 struct CachedMapBlockData
30 MapNode *data; // A copy of the MapBlock's data member
31 int refcount_from_queue;
32 int last_used_timestamp;
35 ~CachedMapBlockData();
38 struct QueuedMeshUpdate
41 bool ack_block_to_server;
45 MeshMakeData *data; // This is generated in MeshUpdateQueue::pop()
52 A thread-safe queue of mesh update tasks and a cache of MapBlock data
58 SKIP_UPDATE_IF_ALREADY_CACHED,
61 MeshUpdateQueue(Client *client);
65 // Caches the block at p and its neighbors (if needed) and queues a mesh
66 // update for the block at p
67 void addBlock(Map *map, v3s16 p, bool ack_block_to_server, bool urgent);
69 // Returned pointer must be deleted
70 // Returns NULL if queue is empty
71 QueuedMeshUpdate * pop();
75 MutexAutoLock lock(m_mutex);
76 return m_queue.size();
81 std::vector<QueuedMeshUpdate*> m_queue;
82 std::set<v3s16> m_urgents;
83 std::map<v3s16, CachedMapBlockData*> m_cache;
86 // TODO: Add callback to update these when g_settings changes
87 bool m_cache_enable_shaders;
88 bool m_cache_use_tangent_vertices;
89 bool m_cache_smooth_lighting;
90 int m_meshgen_block_cache_size;
92 CachedMapBlockData* cacheBlock(Map *map, v3s16 p, UpdateMode mode,
93 size_t *cache_hit_counter=NULL);
94 CachedMapBlockData* getCachedBlock(const v3s16 &p);
95 void fillDataFromMapBlockCache(QueuedMeshUpdate *q);
99 struct MeshUpdateResult
103 bool ack_block_to_server;
106 p(-1338,-1338,-1338),
108 ack_block_to_server(false)
113 class MeshUpdateThread : public UpdateThread
116 MeshUpdateThread(Client *client);
118 // Caches the block at p and its neighbors (if needed) and queues a mesh
119 // update for the block at p
120 void updateBlock(Map *map, v3s16 p, bool ack_block_to_server, bool urgent);
122 v3s16 m_camera_offset;
123 MutexedQueue<MeshUpdateResult> m_queue_out;
126 MeshUpdateQueue m_queue_in;
128 // TODO: Add callback to update these when g_settings changes
129 int m_generation_interval;
132 virtual void doUpdate();