PNG_MAP.C

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/* --
OpenFX version 2.0 - Modelling, Animation and Rendering Package
Copyright (C) 2000 - 2007 OpenFX Development Team
-- */

/*  PNG_MAP.C  */

#include <windows.h>

int x_size, y_size;
unsigned char *R,*G,*B;

extern long ReadPng(char *filename, short info_only);

static HINSTANCE hThisInstance;

#if __WATCOMC__
int APIENTRY LibMain(HANDLE hDLL, DWORD dwReason, LPVOID lpReserved){
#else
BOOL WINAPI DllMain(HANDLE hDLL, DWORD dwReason, LPVOID lpReserved){
#endif
  switch (dwReason) {
    case DLL_PROCESS_ATTACH: {
      hThisInstance=hDLL;
      break;
    }
    case DLL_PROCESS_DETACH:
      break;
  }
  return TRUE;
}

void png_display_line(unsigned char *pbgr, long line){
 register long i;
 for(i=0;i<x_size;i++){
  *R++ = *(pbgr);
  *G++ = *(pbgr+1);
  *B++ = *(pbgr+2);
  pbgr+=3;
 }
}

BOOL _GetExternalImageSize
 (char *filename,
  long *x,
  long *y,
  unsigned char *source_buffer){
 if(ReadPng(filename,1) == 0)return FALSE;
 *x = x_size;
 *y = y_size;
 return TRUE;
}

BOOL _GetExternalImage
 (char *filename,
  long x, long y,
  unsigned char *Red,
  unsigned char *Green,
  unsigned char *Blue,
  unsigned char *source_buffer){
 x_size=x;
 y_size=y;
 R=Red;
 G=Green;
 B=Blue;
 if(ReadPng(filename,0) == 0)return FALSE;
 return TRUE;
}

typedef struct SCREENBUFFER {
 unsigned char A,R,G,B;
} fullscreenbuffer;

extern long WritePng(char *, long, long, long, fullscreenbuffer *);

BOOL _PutExternalImage
 (char *filename,
  long x, long y,
  long quality,
  fullscreenbuffer *image){
  if(WritePng(filename,x,y,quality,image) == 0)
    MessageBox(NULL,"Bad JPG",NULL,MB_OK);
 return FALSE;
}