src/subtitles/xy_clipper_paint_machine.cpp

   1 #include "stdafx.h"
   2 #include "xy_clipper_paint_machine.h"
   3 #include "RTS.h"
   4 #include "Rasterizer.h"
   5 #include "cache_manager.h"
   6 #include "subpixel_position_controler.h"
   7
   8 //////////////////////////////////////////////////////////////////////////
   9 //
  10 // CClipperPaintMachine
  11 //
  12
  13 void CClipperPaintMachine::Paint(SharedPtrGrayImage2 *output)
  14 {
  15     ASSERT(output);
  16     if (m_clipper!=NULL)
  17     {
  18         ClipperAlphaMaskCacheKey key(m_clipper);
  19         key.UpdateHashValue();
  20         ClipperAlphaMaskMruCache * cache = CacheManager::GetClipperAlphaMaskMruCache();
  21         POSITION pos = cache->Lookup(key);
  22         if( pos!=NULL )
  23         {
  24             *output = cache->GetAt(pos);
  25             cache->UpdateCache(pos);
  26         }
  27         else
  28         {
  29             (*output).reset(m_clipper->Paint());
  30             cache->UpdateCache(key, *output);
  31         }
  32     }
  33 }
  34
  35 CRect CClipperPaintMachine::CalcDirtyRect()
  36 {
  37     return CRect(0,0,INT_MAX, INT_MAX);//fix me: not a decent state machine yet
  38 }
  39
  40 const ClipperAlphaMaskCacheKey& CClipperPaintMachine::GetHashKey()
  41 {
  42     return m_hash_key;
  43 }