基于am3358的lcd输出

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/*#include<stdio.h>*/#include <unistd.h>   #include <stdio.h>   #include <stdlib.h>   #include <fcntl.h>   #include <string.h>   #include <linux/fb.h>   #include <sys/mman.h>   #include <sys/ioctl.h>   #include <arpa/inet.h>       //14byteÎÄŒþÍ·   typedef struct  {      char cfType[2];//ÎÄŒþÀàÐÍ£¬"BM"(0x4D42)       long cfSize;//ÎÄŒþŽóÐ¡£š×ÖœÚ£©       long cfReserved;//±£Áô£¬ÖµÎª0       long cfoffBits;//ÊýŸÝÇøÏà¶ÔÓÚÎÄŒþÍ·µÄÆ«ÒÆÁ¿£š×ÖœÚ£©   }__attribute__((packed)) BITMAPFILEHEADER;  //__attribute__((packed))µÄ×÷ÓÃÊÇžæËß±àÒëÆ÷È¡Ïûœá¹¹ÔÚ±àÒë¹ý³ÌÖÐµÄÓÅ»¯¶ÔÆë     //40byteÐÅÏ¢Í·   typedef struct  {      char ciSize[4];//BITMAPFILEHEADERËùÕŒµÄ×ÖœÚÊý       long ciWidth;//¿í¶È       long ciHeight;//žß¶È       char ciPlanes[2];//Ä¿±êÉè±žµÄÎ»ÆœÃæÊý£¬ÖµÎª1       int ciBitCount;//Ã¿žöÏñËØµÄÎ»Êý       char ciCompress[4];//Ñ¹ËõËµÃ÷       char ciSizeImage[4];//ÓÃ×ÖœÚ±íÊŸµÄÍŒÏñŽóÐ¡£¬žÃÊýŸÝ±ØÐëÊÇ4µÄ±¶Êý       char ciXPelsPerMeter[4];//Ä¿±êÉè±žµÄË®ÆœÏñËØÊý/Ã×       char ciYPelsPerMeter[4];//Ä¿±êÉè±žµÄŽ¹Ö±ÏñËØÊý/Ã×       char ciClrUsed[4]; //Î»ÍŒÊ¹ÓÃµ÷É«°åµÄÑÕÉ«Êý       char ciClrImportant[4]; //Öž¶šÖØÒªµÄÑÕÉ«Êý£¬µ±žÃÓòµÄÖµµÈÓÚÑÕÉ«ÊýÊ±£š»òÕßµÈÓÚ0Ê±£©£¬±íÊŸËùÓÐÑÕÉ«¶ŒÒ»ÑùÖØÒª   }__attribute__((packed)) BITMAPINFOHEADER;    typedef struct  {      unsigned short blue;      unsigned short green;      unsigned short red;      unsigned short reserved;  }__attribute__((packed)) PIXEL;//ÑÕÉ«Ä£ÊœRGB     BITMAPFILEHEADER FileHead;  BITMAPINFOHEADER InfoHead;    static char *fbp = 0;  static int xres = 0;  static int yres = 0;  static int bits_per_pixel = 0;    int  showbmp2();int main ( int argc, char *argv[] )  {      int fbfd = 0;     int index=0;     struct fb_var_screeninfo vinfo;      struct fb_fix_screeninfo finfo;      long int screensize = 0;      struct fb_bitfield red;      struct fb_bitfield green;      struct fb_bitfield blue;        //open the showdeviece    fbfd = open("/dev/fb0", O_RDWR);      if (!fbfd)      {          printf("Error: cannot open framebuffer device.\n");          exit(1);      }        if (ioctl(fbfd, FBIOGET_FSCREENINFO, &finfo))      {          printf("Error£ºreading fixed information.\n");          exit(2);      }        if (ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo))      {          printf("Error: reading variable information.\n");          exit(3);      }        printf("R:%d,G:%d,B:%d \n", vinfo.red, vinfo.green, vinfo.blue );        printf("%dx%d, %dbpp,%d clock\n", vinfo.xres, vinfo.yres, vinfo.bits_per_pixel,vinfo.pixclock );      xres = vinfo.xres;      yres = vinfo.yres;      bits_per_pixel = vinfo.bits_per_pixel;        //ŒÆËãÆÁÄ»µÄ×ÜŽóÐ¡£š×ÖœÚ£©       screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8;      printf("screensize=%d byte\n",screensize);        //¶ÔÏóÓ³Éä       fbp = (char *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED, fbfd, 0);      if ((int)fbp == -1)      {          printf("Error: failed to map framebuffer device to memory.\n");          exit(4);      }        printf("sizeof file header=%d\n", sizeof(BITMAPFILEHEADER));        printf("into show_bmp function\n");        showbmp2();    //ÉŸ³ý¶ÔÏóÓ³Éä       munmap(fbp, screensize);  //    close(fbfd);      return 0;  }  ///*    unsigned char buf[3][1680*1050*4];  unsigned char data[640*480*3];int  showbmp2(){    int x,y;    int index=0;    unsigned char *p;    FILE *fp[3];        fp[0] = fopen("./000.bmp","rb+");        fp[1] = fopen("./111.bmp","rb+");        fp[2] = fopen("./222.bmp","rb+");    fread(data,54,1,fp[0]);    fread(data,640*480*3,1,fp[0]);    for(y=0;y<480;y++)    {for(x=0;x<800;x++){            if(x<640)            {            buf[0][((479-y)*800+x)*4 + 0] = data[((y*640) + x)*3 + 0];                buf[0][((479-y)*800+x)*4 + 1] = data[((y*640) + x)*3 + 1];                buf[0][((479-y)*800+x)*4 + 2] = data[((y*640) + x)*3 + 2];                //buf[1][(479-y)*1680+x)*4 + 3] = data[((y*640) + x)*3 + 0];            }}    }//    fread(data,54,1,fp[1]);    fread(data,640*480*3,1,fp[1]);    for(y=0;y<480;y++)    {for(x=0;x<1680;x++){            if(x<640)            {            buf[1][((479-y)*800+x)*4 + 0] = data[((y*640) + x)*3 + 0];                buf[1][((479-y)*800+x)*4 + 1] = data[((y*640) + x)*3 + 1];                buf[1][((479-y)*800+x)*4 + 2] = data[((y*640) + x)*3 + 2];                //buf[1][(479-y)*1680+x)*4 + 3] = data[((y*640) + x)*3 + 0];            }}    }//    fread(data,54,1,fp[2]);    fread(data,640*480*3,1,fp[2]);    for(y=0;y<480;y++)    {for(x=0;x<1680;x++){            if(x<640)             {            buf[2][((479-y)*800+x)*4 + 0] = data[((y*640) + x)*3 + 0];                buf[2][((479-y)*800+x)*4 + 1] = data[((y*640) + x)*3 + 1];                buf[2][((479-y)*800+x)*4 + 2] = data[((y*640) + x)*3 + 2];                //buf[1][(479-y)*1680+x)*4 + 3] = data[((y*640) + x)*3 + 0];            }}    }    fclose(fp[0]); fclose(fp[1]); fclose(fp[2]);    //    while(1)    {             memcpy(fbp,buf[index%3],800*480*4);    sleep(1);           if(index++>100)               break;    }        printf("/nover!/n");    return 0;}
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