bmp16.cpp

来自「一个在tc3.0下面写的棋类游戏 很经典 值得好好研究」· C++ 代码 · 共 59 行

#include"bmp16.h"
unsigned int Failed=0;

struct BITMAPFILE
{
	unsigned int bfType;
	unsigned long bfSize;
	unsigned int Reserved1;
	unsigned int Reserved2;
	unsigned long bfOffset;
};

struct BITMAPINFO
{
	unsigned long biSize;
	unsigned long biWidth;
	unsigned long biHeight;
	unsigned int biPlanes;
	unsigned int biBitCount;
	unsigned long biCompression;
	unsigned long biSizeImage;
	unsigned long biXpelsPerMeter;
	unsigned long biYpelsPerMeter;
	unsigned long biClrUsed;
	unsigned long biClrImportant;
};

struct BitmapHeader
{
	struct BITMAPFILE BitmapFile;
	struct BITMAPINFO BitmapInfo;
} BmpHeader;


void ShowBmp16(const char* BitmapFileName,int x0,int y0)
{
   unsigned int Width,Height;
   unsigned char color1,color2;
   unsigned int i, j;
   FILE* fp;
   fp=fopen(BitmapFileName,"rb");
   if(fp==NULL){Failed=1;printf("Can't open file!"); return;}
   fread(&BmpHeader,sizeof(BmpHeader),1,fp);
   Width=BmpHeader.BitmapInfo.biWidth;Height=BmpHeader.BitmapInfo.biHeight;
   fseek(fp,BmpHeader.BitmapFile.bfOffset,SEEK_SET);

   for(i=Height;i>0;i--)
	for(j=0;j<Width;j++)
		{color1=color2=fgetc(fp);
		color1>>=4;color2&=0x0f;
		if(color1!=0)putpixel(x0+j,y0+i-1,color1);
		j++;
		if(color2!=0)putpixel(x0+j,y0+i-1,color2);
		}
   fclose(fp);
   Failed=0;
   return;
}