9fans.net/go@v0.0.5/draw/freesubfont.go (about) 1 package draw 2 3 // Free frees the server resources for the Subfont. Subfonts have a finalizer that 4 // calls Free automatically, if necessary, for garbage collected Images, but it 5 // is more efficient to be explicit. 6 // TODO: Implement the finalizer! 7 func (f *subfont) Free() { 8 if f == nil { 9 return 10 } 11 f.Bits.Display.mu.Lock() 12 defer f.Bits.Display.mu.Unlock() 13 f.free() 14 } 15 16 func (f *subfont) free() { 17 if f == nil { 18 return 19 } 20 f.ref-- 21 if f.ref > 0 { 22 return 23 } 24 uninstallsubfont(f) 25 f.Bits.free() 26 }