68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package level
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import (
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"runtime"
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"sync"
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"git.kirsle.net/SketchyMaze/doodle/pkg/balance"
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"git.kirsle.net/SketchyMaze/doodle/pkg/log"
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)
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/* Functions to migrate Chunkers between different implementations. */
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// OptimizeChunkerAccessors will evaluate all of the chunks of your drawing
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// and possibly migrate them to a different Accessor implementation when
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// saving on disk.
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func (c *Chunker) OptimizeChunkerAccessors() {
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// Parallelize this with goroutines.
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var (
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chunks = make(chan *Chunk, len(c.Chunks))
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wg sync.WaitGroup
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)
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for range runtime.NumCPU() {
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wg.Add(1)
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go func() {
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defer wg.Done()
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for chunk := range chunks {
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var point = chunk.Point
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// Upgrade all MapTypes into RLE compressed MapTypes?
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if balance.RLEBinaryChunkerEnabled {
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if chunk.Type == MapType {
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log.Info("Optimizing chunk %s accessor from Map to RLE", point)
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ma, _ := chunk.Accessor.(*MapAccessor)
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rle := NewRLEAccessor(chunk).FromMapAccessor(ma)
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// Lock the chunker for updating.
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c.chunkMu.Lock()
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c.Chunks[point].Type = RLEType
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c.Chunks[point].Accessor = rle
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c.chunkMu.Unlock()
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}
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}
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}
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}()
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}
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// Feed it the chunks.
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for point := range c.IterChunks() {
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chunk, ok := c.GetChunk(point)
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if !ok {
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continue
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}
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chunks <- chunk
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}
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close(chunks)
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wg.Wait()
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}
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// FromMapAccessor migrates from a MapAccessor to RLE.
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func (a *RLEAccessor) FromMapAccessor(ma *MapAccessor) *RLEAccessor {
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return &RLEAccessor{
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chunk: a.chunk,
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acc: ma,
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}
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}
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