My texture just didnot work! Anyone give a hand?

[Archy_Yu]

unsigned int ID; /**< 生成纹理的ID号 */
int imageWidth; /**< 图像宽度 */
int imageHeight; /**< 图像高度 */
unsigned char *image; /**< 指向图像数据的指针 */
FILE *pFile = 0;

BITMAPINFOHEADER bitmapInfoHeader;
BITMAPFILEHEADER header;

unsigned char textureColors = 0; 

pFile = fopen("桌面.bmp", "rb");
	if(pFile == 0) return false;

fread(&header, sizeof(BITMAPFILEHEADER), 1, pFile);
 
if(header.bfType != BITMAP\_ID)
   {
	   fclose(pFile);             
	   return false;
   }

fread(&bitmapInfoHeader, sizeof(BITMAPINFOHEADER), 1, pFile);

imageWidth = bitmapInfoHeader.biWidth;
imageHeight = bitmapInfoHeader.biHeight;

if(bitmapInfoHeader.biSizeImage == 0)
bitmapInfoHeader.biSizeImage = bitmapInfoHeader.biWidth *
bitmapInfoHeader.biHeight * 3;

fseek(pFile, header.bfOffBits, SEEK\_SET);

 
image = new unsigned char\[bitmapInfoHeader.biSizeImage\];
 
 
fread(image, 1, bitmapInfoHeader.biSizeImage, pFile);

 
for(int index = 0; index < (int)bitmapInfoHeader.biSizeImage; index+=3)
   {
	   textureColors = image\[index\];
	   image\[index\] = image\[index + 2\];
	   image\[index + 2\] = textureColors;
   }

fclose(pFile);    
glPixelStorei(GL\_UNPACK\_ALIGNMENT,1);
 
glGenTextures(1, &ID);

glBindTexture(GL\_TEXTURE\_2D, ID);

glTexParameteri(GL\_TEXTURE\_2D, GL\_TEXTURE\_MIN\_FILTER, GL\_LINEAR);
glTexParameteri(GL\_TEXTURE\_2D, GL\_TEXTURE\_MAG\_FILTER, GL\_LINEAR);
glTexParameteri(GL\_TEXTURE\_2D,GL\_TEXTURE\_WRAP\_S,GL\_REPEAT);
glTexParameteri(GL\_TEXTURE\_2D,GL\_TEXTURE\_WRAP\_T,GL\_REPEAT); 	

gluBuild2DMipmaps(GL\_TEXTURE\_2D, 3, imageWidth,
                  imageHeight, GL\_RGB, GL\_UNSIGNED\_BYTE,
                  image);

glEnable(GL\_TEXTURE\_2D);
glTexEnvf(GL\_TEXTURE\_ENV,GL\_TEXTURE\_ENV\_MODE,GL\_REPLACE);

glPushMatrix();	 
glScaled(45.0,30.0,0);	
glBindTexture(GL\_TEXTURE\_2D, ID);
glBegin(GL\_QUADS);					 
	glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.0f, -1.0f, 0.0f);	
	glTexCoord2f(1.0f, 0.0f); glVertex3f(-2.0f,  1.0f, 0.0f);	
	glTexCoord2f(1.0f, 1.0f); glVertex3f( 0.0f,  1.0f, 0.0f);	
	glTexCoord2f(0.0f, 1.0f); glVertex3f( 0.0f, -1.0f, 0.0f);	
	
glEnd();	
glPopMatrix();

GLvoid ReShapeGLScene( GLsizei width,GLsizei height )
{
glViewport(0,0,(GLsizei)width,(GLsizei)height);
glMatrixMode(GL\_PROJECTION);
glLoadIdentity();
glOrtho((GLdouble)-450.0,(GLdouble)450.0,(GLdouble)-300.

[IdUnknown]

For the PIXELFORMATDESCRIPTOR you set the pixel type to PFD_TYPE_RGBA so i think you need to set the colorbits to 32 instead of 24. And for the mipmaps gluBuild2DMipmaps(GL_TEXTURE_2D, 3, imageWidth, imageHeight, GL_RGB, GL_UNSIGNED_BYTE, image); try this instead gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, imageWidth, imageHeight, GL_RGBA, GL_UNSIGNED_BYTE, image); or gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, imageWidth, imageHeight, GL_BGRA, GL_UNSIGNED_BYTE, image); notice the fifth parameter. This is what I use for loading Windows bitmap into texture.

[Archy_Yu]

not work,The program work well in others' computer,But failed again in my computer. My gpu is nViDIA, geforce G210M. I think it something with my gpu. But I knouw nothing about it Thanks all the same

[Tim Craig]

What size is the image you're trying to use as a texture? I haven't played with OpenGL for a bit but I seem to remember the image has to be sized to even powers of 2. For example, 2, 4, 8, 16, 32....

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[Archy_Yu]