add oversampler

oversampling/WDL/lice/lice_pcx.cpp

@@ -0,0 +1,118 @@
+/*
+  Cockos WDL - LICE - Lightweight Image Compositing Engine
+  Copyright (C) 2007 and later, Cockos Incorporated
+  File: lice_pcx.cpp (PCX loading for LICE)
+  See lice.h for license and other information
+*/
+
+#include "lice.h"
+#include "../wdltypes.h"
+
+#include <stdio.h>
+
+// note: you'd never really want to use PCX files, but in case you do...
+
+LICE_IBitmap *LICE_LoadPCX(const char *filename, LICE_IBitmap *_bmp)
+{
+  FILE *fp = WDL_fopenA(filename,"rb");
+  if(!fp) return 0;
+
+  fgetc(fp);
+  if (fgetc(fp) != 5) { fclose(fp); return NULL; }
+  if (fgetc(fp) != 1) { fclose(fp); return NULL; }
+  if (fgetc(fp) != 8) { fclose(fp); return NULL; }
+
+  int sx = fgetc(fp); sx += fgetc(fp)<<8;
+  int sy = fgetc(fp); sy += fgetc(fp)<<8;
+  int ex = fgetc(fp); ex += fgetc(fp)<<8;
+  int ey = fgetc(fp); ey += fgetc(fp)<<8;
+
+
+  unsigned char pal[768];
+  fseek(fp,-769,SEEK_END);
+  if (fgetc(fp) != 12) { fclose(fp); return NULL; }
+  if (fread(pal,1,768,fp) != 768 || feof(fp))
+  {
+    fclose(fp);
+    return NULL;
+  }
+
+
+  LICE_IBitmap *usebmp = NULL;
+  if (_bmp) (usebmp=_bmp)->resize(ex-sx+1,ey-sy+1);
+  else usebmp = new WDL_NEW LICE_MemBitmap(ex-sx+1,ey-sy+1);
+  if (!usebmp || usebmp->getWidth() != (ex-sx+1) || usebmp->getHeight() != (ey-sy+1)) 
+  {
+    if (usebmp != _bmp) delete usebmp;
+    fclose(fp);
+    return NULL;
+  }
+
+  fseek(fp,128,SEEK_SET);
+
+  LICE_Clear(usebmp,0);
+  int y = usebmp->getHeight();
+  int w = usebmp->getWidth();
+  int rowspan = usebmp->getRowSpan();
+  LICE_pixel *pout = usebmp->getBits();
+  if (usebmp->isFlipped())
+  {
+    pout += rowspan*(y-1);
+    rowspan=-rowspan;
+  }
+  while (y--)
+  {
+    int xpos = 0;
+    while (xpos < w)
+    {
+      int c = fgetc(fp);
+      if (c&~255) break;
+      if ((c & 192) == 192) 
+      {
+        int oc = (fgetc(fp))&255;
+        LICE_pixel t=LICE_RGBA(pal[oc*3],pal[oc*3+1],pal[oc*3+2],255);
+
+        c&=63;
+        while (c-- && xpos<w) pout[xpos++] =  t;
+      } 
+      else pout[xpos++] = LICE_RGBA(pal[c*3],pal[c*3+1],pal[c*3+2],255);
+    } 
+    pout+=rowspan;
+  }
+  fclose(fp);
+
+  return usebmp;
+}
+
+
+class LICE_PCXLoader
+{
+public:
+  _LICE_ImageLoader_rec rec;
+  LICE_PCXLoader() 
+  {
+    rec.loadfunc = loadfunc;
+    rec.get_extlist = get_extlist;
+    rec._next = LICE_ImageLoader_list;
+    LICE_ImageLoader_list = &rec;
+  }
+
+  static LICE_IBitmap *loadfunc(const char *filename, bool checkFileName, LICE_IBitmap *bmpbase)
+  {
+    if (checkFileName)
+    {
+      const char *p=filename;
+      while (*p)p++;
+      while (p>filename && *p != '\\' && *p != '/' && *p != '.') p--;
+      if (stricmp(p,".pcx")) return 0;
+    }
+    return LICE_LoadPCX(filename,bmpbase);
+  }
+  static const char *get_extlist()
+  {
+    return "PCX files (*.PCX)\0*.PCX\0";
+  }
+
+};
+
+LICE_PCXLoader LICE_pcxldr;