add oversampler

oversampling/WDL/lice/lice_bmp.cpp

@@ -0,0 +1,122 @@
+/*
+  Cockos WDL - LICE - Lightweight Image Compositing Engine
+  Copyright (C) 2007 and later, Cockos Incorporated
+  File: lice_bmp.cpp (BMP loading for LICE)
+  See lice.h for license and other information
+*/
+
+#ifndef WDL_NO_DEFINE_MINMAX
+#define WDL_NO_DEFINE_MINMAX
+#endif
+#include "lice.h"
+#include "../wdltypes.h"
+#ifndef _WIN32
+#include "../swell/swell.h"
+#endif
+
+static LICE_IBitmap *hbmToBit(HBITMAP hbm, LICE_IBitmap *bmp)
+{
+  BITMAP bm;
+  GetObject(hbm, sizeof(BITMAP), (LPSTR)&bm);
+
+  LICE_SysBitmap sysbitmap(bm.bmWidth,bm.bmHeight);
+  
+#ifdef _WIN32
+  HDC hdc=CreateCompatibleDC(NULL);
+  HGDIOBJ oldBM=SelectObject(hdc,hbm);
+
+  BitBlt(sysbitmap.getDC(),0,0,bm.bmWidth,bm.bmHeight,hdc,0,0,SRCCOPY);
+  GdiFlush();
+
+  if (!bmp) bmp=new WDL_NEW LICE_MemBitmap(bm.bmWidth,bm.bmHeight);
+  LICE_Copy(bmp,&sysbitmap);
+
+  SelectObject(hdc,oldBM);
+  DeleteDC(hdc);
+  #else
+  LICE_Clear(&sysbitmap,0);
+  RECT r={0,0,bm.bmWidth,bm.bmHeight};
+  DrawImageInRect(sysbitmap.getDC(),hbm,&r);
+  if (!bmp) bmp=new WDL_NEW LICE_MemBitmap(bm.bmWidth,bm.bmHeight);
+  LICE_Copy(bmp,&sysbitmap);
+  #endif
+
+  if (bmp) LICE_FillRect(bmp,0,0,bmp->getWidth(),bmp->getHeight(),LICE_RGBA(0,0,0,255),1.0f,LICE_BLIT_MODE_ADD);
+
+  return bmp;
+}
+
+
+LICE_IBitmap *LICE_LoadBMP(const char *filename, LICE_IBitmap *bmp) // returns a bitmap (bmp if nonzero) on success
+{
+  HBITMAP bm=NULL;
+#ifdef _WIN32
+#ifndef WDL_NO_SUPPORT_UTF8
+  #ifdef WDL_SUPPORT_WIN9X
+  if (GetVersion()<0x80000000)
+  #endif
+  {
+    WCHAR wf[2048];
+    if (MultiByteToWideChar(CP_UTF8,MB_ERR_INVALID_CHARS,filename,-1,wf,2048))
+      bm = (HBITMAP) LoadImageW(NULL,wf,IMAGE_BITMAP,0,0,LR_CREATEDIBSECTION|LR_LOADFROMFILE);
+  }
+#endif
+
+  if (!bm) bm=(HBITMAP) LoadImage(NULL,filename,IMAGE_BITMAP,0,0,LR_CREATEDIBSECTION|LR_LOADFROMFILE);
+#else
+  bm=(HBITMAP) LoadNamedImage(filename,false);
+#endif
+  if (!bm) return 0;
+
+  LICE_IBitmap *ret=hbmToBit(bm,bmp);
+
+  DeleteObject(bm);
+  return ret;
+}
+
+#ifdef _WIN32
+LICE_IBitmap *LICE_LoadBMPFromResource(HINSTANCE hInst, const char *resid, LICE_IBitmap *bmp) // returns a bitmap (bmp if nonzero) on success
+{
+  HBITMAP bm=(HBITMAP) LoadImage(hInst,resid,IMAGE_BITMAP,0,0,LR_CREATEDIBSECTION);
+  if (!bm) return 0;
+
+  LICE_IBitmap *ret=hbmToBit(bm,bmp);
+
+  DeleteObject(bm);
+  return ret;
+}
+#endif
+
+
+
+class LICE_BMPLoader
+{
+public:
+  _LICE_ImageLoader_rec rec;
+  LICE_BMPLoader() 
+  {
+    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,".bmp")) return 0;
+    }
+    return LICE_LoadBMP(filename,bmpbase);
+  }
+  static const char *get_extlist()
+  {
+    return "BMP files (*.BMP)\0*.BMP\0";
+  }
+
+};
+
+LICE_BMPLoader LICE_bmpldr;