برنامه ای که یه عکس bmp رو در c نشون بده . ممنون میشم

سلام میخواستم

برنامه ای که یه عکس bmp رو در c نشون بده . ممنون میشم

سلام

1) شما مجبورید از ساختار BitMap استفاده کنید، هیچ احتیاجی نیست این ساختار رو تغییر بدین. فقط اون رو تو یه فایل با پسوند cpp کپی کنید مثلا فایل "BitMap.cpp"

کد:

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//BitMap Structure
 
struct A{
char type[2]; /* Magic identifier */
unsigned long size; /* File size in bytes */
unsigned short int reserved1, reserved2;
unsigned long offset; /* Offset to image data, bytes */
};
 
extern A HEADER,HEADER1;
 
struct B{
unsigned long size; /* Header size in bytes */
unsigned long width,height; /* Width and height of image */
unsigned short int planes; /* Number of colour planes */
unsigned short int bits; /* Bits per pixel */
unsigned long compression; /* Compression type */
unsigned long imagesize; /* Image size in bytes */
unsigned long xresolution,yresolution; /* Pixels per meter */
unsigned long ncolours; /* Number of colours */
unsigned long importantcolours; /* Important colours */
};

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2) در قسمت main این کد رو بنویس

کد:

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//MAIN FILE

#include<iostream.h>
#include<graphics.h>
#include<fstream.h>

#include "bitmap.h"

// This Global Function is used for the resolution of the bitmap. You can set the return value either 1,2 or 3. For me 3 is the best combination.

huge DetectSvga()
{
    return 3;
}

void main()
{
    int gd = DETECT, md, a; 
   
    installuserdriver("SVGA256",&DetectSvga);
    initgraph(&gd,&md,"c:\\tc\\bgi"); //Path may be different in your computer.
   
    Show();
    Show1();
   
}

//Suppose you have one show function which read the bitmap from the disk. Then this show function looks like this.

void Show()
{
    fstream File;
   
    //Here you have to define the path of the bitmap file. Like according to this example i have to open one Board1.bmp file. So write you bitmap file path here.
   
    File.open("d:\\Chess\\Bitmaps\\Board1.bmp",ios::in);
   
    unsigned char Ch;
   
    File.read((char*)&HEADER,14); //This is the header part of the Bitmap. It always looks like same. Don't change the content hear. The value remains 14 here.
   
    File.read((char*)&INFOHEADER,40); //This is another part of the bitmap, here also the value remains same like 40 here.
   
    unsigned int i;
    char ColorBytes[4];
    char*PaletteData;
   
    PaletteData=new char[256*3];
   
    if(PaletteData)//if memory allocated successfully
    {
        //read color data
        for(i=0;i<256;i++)
        {
            //Don't change the code here because i have done some shifting here. Its working fine.
            File.read(ColorBytes,4);
            PaletteData[(int)(i*3+2)]=ColorBytes[0]>>2;
            PaletteData[(int)(i*3+1)]=ColorBytes[1]>>2;
            PaletteData[(int)(i*3+0)]=ColorBytes[2]>>2;
        }
       
        outp(0x03c8,0);      //tell DAC that data is coming
       
        for(i=0;i<256*3;i++) //send data to SVGA DAC
        {
            outp(0x03c9,PaletteData[i]);
        }
        delete[]PaletteData;
    }
   
    for(i=0;i<INFOHEADER.height;i++)      //This for loop is used to display the bitmap.
    {
        for(int j=0;j<INFOHEADER.width;)
        {
            File.read(&Ch,1); // Here Ch reads the color of your bitmap.
            putpixel(XCor+j++,YCor+INFOHEADER.height-i-1,Ch); //XCor and YCor are the X and Y cordinates. It depends upon you.
           
        }
    }
   
    File.close();
   
}

//Another way to display the Bitmap is. Suppose i have another Show1() Function. This is simple as compare to previous show function.

void Show1()
{
   
    Char Ch;
    fstream File;
    File.open("d:\\Chess\\Bitmaps\\KingA.bmp",ios::in);
   
    File.seekg(54,ios::beg);  //Its remains same. Means value always remains 54
    File.seekg(256*4,ios::cur); //Its remains same means value always remain 256*4.
   
    for(int i=0;i<40;i++) //Here 40 shows the height of the bitmap. It may be differ it depends upon the size of your bitmap.
    {
        for(int j=0;j<36;j++) //Here 36 shows the width of the bitmap. It may be differ it depends upon the size of your bitmap.
        {
            File.read(&Ch,1); //Here Ch is the character which reads the color of your bitmap.
           
            putpixel(this->XCor+j,this->YCor+39-i ,Ch);
           
        }
    }
   
}

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سلام
من قبلا یه برنامه برای اینکار نوشته بودم ولی برای عکسهای سیاه سفید و فقط BMP 24bit رو پشتیبانی میکنه
فکر نکنم حالا حالا هم تکمیلش کنم، میزارم اگه بدردتون میخوره استفاده کنید

کد:

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http://hoax3r.persiangig.com/Tools/bitmapconv.zip

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