1 unsigned char* LoadBMP(FILE * img)
 2 {
 3     unsigned long bBMPFormat = 0;
 4     unsigned long bData = 0;
 5     DWORD size = 0;
 6     unsigned char *data;
 7
 8     fseek(img,10,SEEK_SET);
 9     fread(&bData,4,1,img);
10     fseek(img,28,SEEK_SET);
11     fread(&bBMPFormat,2,1,img);
12     fseek(img,0,SEEK_END);
13     size = ftell(img) - bData;
14
15     if(bBMPFormat==24)
16     {
17         data = (unsigned char*)malloc(size);
18         fseek(img,bData,SEEK_SET);
19         fread(data,size,1,img);
20     }
21     else if(bBMPFormat==8)
22     {
23
24         data = (unsigned char*)malloc(size*3);
25         unsigned char* pdata = data;
26
27         unsigned char *ColorBoard = (unsigned char*)malloc(1024);
28         fseek(img,54,SEEK_SET);
29         fread(ColorBoard,1024,1,img);
30
31         unsigned char *ColorIndex = (unsigned char*)malloc(size);
32         fseek(img,1078,SEEK_SET);
33         fread(ColorIndex,size,1,img);
34
35         for(int i=0;i<size;i++)
36         {
37
38             *(pdata) = *(ColorBoard+(*ColorIndex)*4);
39             *(pdata+1) = *(ColorBoard+1+(*ColorIndex)*4);
40             *(pdata+2) = *(ColorBoard+2+(*ColorIndex)*4);
41             ColorIndex++;
42             pdata=pdata+3;
43         }
44     }
45
46     return data;
47 }

 1 unsigned int LoadTex(char* Image)
 2 {
 3     unsigned int Texture=0;
 4
 5                 FILE* img = NULL;
 6                img = fopen(Image,"rb");
 7
 8     unsigned long bWidth = 0;
 9     unsigned long bHeight = 0;
10     unsigned long bdata = 0;
11
12     fseek(img,18L,SEEK_SET);
13     fread(&bWidth,4,1,img);
14     fread(&bHeight,4,1,img);
15
16     unsigned char* data=LoadBMP(img);
17
18     fclose(img);
19
20     glGenTextures(1, &Texture);
21     glBindTexture(GL_TEXTURE_2D, Texture);
22     gluBuild2DMipmaps(GL_TEXTURE_2D, 3, bWidth, bHeight, GL_BGR_EXT, GL_UNSIGNED_BYTE, data);
23
24
25     glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
26     glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
27     //glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
28     //glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
29     //glTexImage2D(GL_TEXTURE_2D,0,3,bWidth,bHeight,0,GL_RGB,GL_UNSIGNED_BYTE,data);
30
31     if (data)
32         free(data);
33
34     return Texture;
35 }