license info for PicoDrive directory

[cyclone68000.git] / PicoDrive / Debug.cpp

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// This file is part of the PicoDrive Megadrive Emulator\r
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// This code is licensed under the GNU General Public License version 2.0 and the MAME License.\r
// You can choose the license that has the most advantages for you.\r
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// SVN repository can be found at http://code.google.com/p/cyclone68000/\r
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#include "stdafx.h"\r
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static int ScreenNum=0;\r
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int DebugScreenGrab()\r
{\r
  unsigned char *screen=NULL;\r
  FILE *file=NULL;\r
  unsigned char *line=NULL;\r
  int x=0,y=0;\r
  char filename[64];\r
  unsigned char head[0x12];\r
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  memset(filename,0,sizeof(filename));\r
  memset(head,0,sizeof(head));\r
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  // Allocate memory for one line\r
  line=(unsigned char *)malloc(GXDisp.cxWidth*3); if (line==NULL) return 1;\r
  memset(line,0,GXDisp.cxWidth*3);\r
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  // Get pointer to screen:\r
  screen=(unsigned char *)GXBeginDraw(); if (screen==NULL) { free(line); return 1; }\r
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  // Open screenshot file:\r
  for (;;)\r
  {\r
    sprintf(filename,"\\Screen%.3d.tga",ScreenNum);\r
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    // Does this file exist?\r
    file=fopen(filename,"rb"); if (file==NULL) break; // No - use this\r
    \r
    // Exists, try next file\r
    fclose(file); ScreenNum++;\r
    if (ScreenNum>=1000) break;\r
  }\r
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  // Use this filename\r
  file=fopen(filename,"wb"); if (file==NULL) { GXEndDraw(); free(line); return 1; }\r
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  head[0x02]=0x02; //?\r
  head[0x0c]=(unsigned char) GXDisp.cxWidth;\r
  head[0x0d]=(unsigned char)(GXDisp.cxWidth>>8);\r
  head[0x0e]=(unsigned char) GXDisp.cyHeight;\r
  head[0x0f]=(unsigned char)(GXDisp.cyHeight>>8);\r
  head[0x10]=24; // Number of bits per pixel\r
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  // Write header:\r
  fwrite(head,1,sizeof(head),file);\r
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  for (y=0;y<(int)GXDisp.cyHeight;y++)\r
  {\r
    unsigned char *ps=NULL,*pd=NULL;\r
    int ry=0;\r
    int pix=0;\r
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    ry=GXDisp.cyHeight-y-1;\r
    ps=screen+ry*GXDisp.cbyPitch;\r
    pd=line;\r
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    // Copy pixel to our line buffer\r
    for (x=0;x<(int)GXDisp.cxWidth; x++,ps+=GXDisp.cbxPitch,pd+=3)\r
    {\r
      pix=*(unsigned short *)ps;\r
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      pd[0]=(unsigned char)((pix&0x001f)<<3); // Red\r
      pd[1]=(unsigned char)((pix&0x07e0)>>3); // Green\r
      pd[2]=(unsigned char)((pix&0xf800)>>8); // Blue\r
    }\r
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    fwrite(line,1,GXDisp.cxWidth*3,file);\r
  }\r
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  fclose(file); file=NULL;\r
  \r
  GXEndDraw();\r
  free(line);\r
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  return 0;\r
}\r