HBITMAP hBmp = (HBITMAP) ::LoadImage (AfxGetResourceHandle(),MAKEINTRESOURCE(IDB_BITMAP1), IMAGE_BITMAP, 0, 0,LR_CREATEDIBSECTION);
BITMAP BM; ::GetObject (hBmp, sizeof (BM), &BM);
gluBuild2DMipmaps( GL_TEXTURE_2D, 3, BM.bmWidth, BM.bmHeight,GL_BGR_EXT, GL_UNSIGNED_BYTE,BM.bmBits);
AUX_RGBImageRec* TextureImage[1];
TextureImage[0]=auxDIBImageLoad("1.bmp");
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
long ImageWidth=256;
long ImageHeight=256;
GLubyte Image[256][256][3];
void ReadHeader(FILE *fp , BITMAPFH * p_bitmapheader , BITMAPIH *p_bitmapinfo)
{
fseek(fp, 0, SEEK_SET) ;
fread( &p_bitmapheader->bfType,sizeof(unsigned short), 1, fp );
fseek(fp, 2, SEEK_SET) ;
fread( &p_bitmapheader->bfSize,sizeof(unsigned long), 1, fp );
fseek(fp, 6, SEEK_SET) ;
fread( &p_bitmapheader->bfReserved1,sizeof(unsigned short), 1, fp );
fseek(fp, 8, SEEK_SET) ;
fread( &p_bitmapheader->bfReserved2,sizeof(unsigned short), 1, fp );
fseek(fp, 10, SEEK_SET) ;
fread( &p_bitmapheader->bfOffBits,sizeof(unsigned long), 1, fp );
fseek(fp, 14, SEEK_SET) ;
fread( &p_bitmapinfo->biSize, sizeof(unsigned long), 1, fp );
fseek(fp, 18, SEEK_SET) ;
fread( &p_bitmapinfo->biWidth, sizeof(unsigned long), 1, fp );
fseek(fp, 22, SEEK_SET) ;
fread( &p_bitmapinfo->biHeight, sizeof(unsigned long), 1, fp );
fseek(fp, 26, SEEK_SET) ;
fread( &p_bitmapinfo->biPlanes, sizeof(unsigned short), 1, fp );
fseek(fp, 28, SEEK_SET) ;
fread( &p_bitmapinfo->biBitCount, sizeof(unsigned short), 1, fp );
fseek(fp, 30, SEEK_SET) ;
fread( &p_bitmapinfo->biCompression, sizeof(unsigned long), 1, fp );
fseek(fp, 34, SEEK_SET) ;
fread( &p_bitmapinfo->biSizeImage, sizeof(unsigned long), 1, fp );
fseek(fp, 38, SEEK_SET) ;
fread( &p_bitmapinfo->biXPelsPerMeter, sizeof(unsigned long), 1, fp );
fseek(fp, 42, SEEK_SET) ;
fread( &p_bitmapinfo->biYPelsPerMeter, sizeof(unsigned long), 1, fp );
fseek(fp, 46, SEEK_SET) ;
fread( &p_bitmapinfo->biClrUsed, sizeof(unsigned long), 1, fp );
fseek(fp, 50, SEEK_SET) ;
fread( &p_bitmapinfo->biClrImportant, sizeof(unsigned long), 1, fp );
}
void ReadBitmapFile()
{
BITMAPFH bitmapheader ;
BITMAPIH bitmapinfo ;
FILE *fp;
fp = fopen("6.bmp" , "r") ;
if(!fp)
{
puts("Read file failed.") ;
return;
}
ReadHeader(fp, &bitmapheader , &bitmapinfo) ;
if(bitmapinfo.biBitCount != 24)
{
puts("UNSUPPORT") ;
return;
}
ImageWidth = bitmapinfo.biWidth;
ImageHeight = bitmapinfo.biHeight;
int i=bitmapheader.bfOffBits;
while(i<bitmapheader.bfSize)
{
for(int j=0;j<ImageWidth;j++)
for(int k=0;k<ImageHeight;k++)
{
fseek(fp, i, SEEK_SET) ;
fread(Image[j][k]+2, 1, 1, fp) ;
fseek(fp, i+1, SEEK_SET) ;
fread(Image[j][k]+1, 1, 1, fp) ;
fseek(fp, i+2, SEEK_SET) ;
fread(Image[j][k], 1, 1, fp) ;
i=i+3;
}
}
fclose(fp) ;
}
glTexImage2D(GL_TEXTURE_2D,0,3,ImageWidth,ImageHeight,0,GL_RGB,GL_UNSIGNED_BYTE,&Image[0][0][0]);
bool LoadTexture(LPTSTR szFileName, GLuint &texid) // Creates Texture From A Bitmap File
{
HBITMAP hBMP; // Handle Of The Bitmap
BITMAP BMP; // Bitmap Structure
glGenTextures(1, &texid); // Create The Texture
hBMP=(HBITMAP)LoadImage(GetModuleHandle(NULL), szFileName, IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION | LR_LOADFROMFILE );
if (!hBMP) // Does The Bitmap Exist?
return FALSE; // If Not Return False
GetObject(hBMP, sizeof(BMP), &BMP); // Get The Object
// hBMP: Handle To Graphics Object
// sizeof(BMP): Size Of Buffer For Object Information
// &BMP: Buffer For Object Information
glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // Pixel Storage Mode (Word Alignment / 4 Bytes)
// Typical Texture Generation Using Data From The Bitmap
glBindTexture(GL_TEXTURE_2D, texid); // Bind To The Texture ID
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); // Linear Min Filter
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // Linear Mag Filter
glTexImage2D(GL_TEXTURE_2D, 0, 3, BMP.bmWidth, BMP.bmHeight, 0, GL_BGR_EXT, GL_UNSIGNED_BYTE, BMP.bmBits);
DeleteObject(hBMP); // Delete The Object
return TRUE; // Loading Was Successful
}
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