diff options
Diffstat (limited to 'src/LightingThread.h')
| -rw-r--r-- | src/LightingThread.h | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/src/LightingThread.h b/src/LightingThread.h index 138c40002..d95214a3c 100644 --- a/src/LightingThread.h +++ b/src/LightingThread.h @@ -50,25 +50,25 @@ class cLightingThread : public cIsThread { typedef cIsThread super; - + public: - + cLightingThread(void); ~cLightingThread(); - + bool Start(cWorld * a_World); - + void Stop(void); - + /** Queues the entire chunk for lighting. The callback, if specified, is called after the lighting has been processed. */ void QueueChunk(int a_ChunkX, int a_ChunkZ, std::unique_ptr<cChunkCoordCallback> a_CallbackAfter); - + /** Blocks until the queue is empty or the thread is terminated */ void WaitForQueueEmpty(void); - + size_t GetQueueLength(void); - + protected: class cLightingChunkStay : @@ -79,9 +79,9 @@ protected: int m_ChunkX; int m_ChunkZ; std::unique_ptr<cChunkCoordCallback> m_CallbackAfter; - + cLightingChunkStay(cLightingThread & a_LightingThread, int a_ChunkX, int a_ChunkZ, std::unique_ptr<cChunkCoordCallback> a_CallbackAfter); - + protected: virtual void OnChunkAvailable(int a_ChunkX, int a_ChunkZ) override { @@ -91,15 +91,15 @@ protected: virtual bool OnAllChunksAvailable(void) override; virtual void OnDisabled(void) override; } ; - + typedef std::list<cChunkStay *> cChunkStays; - - + + cWorld * m_World; - + /** The mutex to protect m_Queue and m_PendingQueue */ cCriticalSection m_CS; - + /** The ChunkStays that are loaded and are waiting to be lit. */ cChunkStays m_Queue; @@ -108,11 +108,11 @@ protected: cEvent m_evtItemAdded; // Set when queue is appended, or to stop the thread cEvent m_evtQueueEmpty; // Set when the queue gets empty - + /** The highest block in the current 3x3 chunk data */ HEIGHTTYPE m_MaxHeight; - - + + // Buffers for the 3x3 chunk data // These buffers alone are 1.7 MiB in size, therefore they cannot be located on the stack safely - some architectures may have only 1 MiB for stack, or even less // Placing the buffers into the object means that this object can light chunks only in one thread! @@ -123,7 +123,7 @@ protected: NIBBLETYPE m_BlockLight[BlocksPerYLayer * cChunkDef::Height]; NIBBLETYPE m_SkyLight [BlocksPerYLayer * cChunkDef::Height]; HEIGHTTYPE m_HeightMap [BlocksPerYLayer]; - + // Seed management (5.7 MiB) // Two buffers, in each calc step one is set as input and the other as output, then in the next step they're swapped // Each seed is represented twice in this structure - both as a "list" and as a "position". @@ -139,33 +139,33 @@ protected: /** Lights the entire chunk. If neighbor chunks don't exist, touches them and re-queues the chunk */ void LightChunk(cLightingChunkStay & a_Item); - + /** Prepares m_BlockTypes and m_HeightMap data; zeroes out the light arrays */ void ReadChunks(int a_ChunkX, int a_ChunkZ); - + /** Uses m_HeightMap to initialize the m_SkyLight[] data; fills in seeds for the skylight */ void PrepareSkyLight(void); - + /** Uses m_BlockTypes to initialize the m_BlockLight[] data; fills in seeds for the blocklight */ void PrepareBlockLight(void); - + /** Same as PrepareBlockLight(), but uses a different traversal scheme; possibly better perf cache-wise. To be compared in perf benchmarks. */ void PrepareBlockLight2(void); - + /** Calculates light in the light array specified, using stored seeds */ void CalcLight(NIBBLETYPE * a_Light); - + /** Does one step in the light calculation - one seed propagation and seed recalculation */ void CalcLightStep( NIBBLETYPE * a_Light, size_t a_NumSeedsIn, unsigned char * a_IsSeedIn, unsigned int * a_SeedIdxIn, size_t & a_NumSeedsOut, unsigned char * a_IsSeedOut, unsigned int * a_SeedIdxOut ); - + /** Compresses from 1-block-per-byte (faster calc) into 2-blocks-per-byte (MC storage): */ void CompressLight(NIBBLETYPE * a_LightArray, NIBBLETYPE * a_ChunkLight); - + inline void PropagateLight( NIBBLETYPE * a_Light, unsigned int a_SrcIdx, unsigned int a_DstIdx, @@ -174,7 +174,7 @@ protected: { ASSERT(a_SrcIdx < ARRAYCOUNT(m_SkyLight)); ASSERT(a_DstIdx < ARRAYCOUNT(m_BlockTypes)); - + if (a_Light[a_SrcIdx] <= a_Light[a_DstIdx] + cBlockInfo::GetSpreadLightFalloff(m_BlockTypes[a_DstIdx])) { // We're not offering more light than the dest block already has @@ -188,11 +188,11 @@ protected: a_SeedIdxOut[a_NumSeedsOut++] = a_DstIdx; } } - + /** Queues a chunkstay that has all of its chunks loaded. Called by cLightingChunkStay when all of its chunks are loaded. */ void QueueChunkStay(cLightingChunkStay & a_ChunkStay); - + } ; |