glGenTextures( 1, &texNum );
glBindTexture( GL_TEXTURE_2D, texNum );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
imagePixels = malloc( pow2H * pow2W * 3 );
assert( imagePixels != NULL );
memset( imagePixels, 0, sizeof(byte) * pow2H * pow2W * 3 );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, pow2W, pow2H, 0, GL_RGB, GL_UNSIGNED_BYTE, imagePixels );
free( imagePixels );
glBegin( GL_QUADS );
glColor4f( 1, 1, 1, 1 );
glTexCoord2f(0, 0); glVertex3f( -1, -1, 0 );
glTexCoord2f(1, 0); glVertex3f( 1, -1, 0 );
glTexCoord2f(1, 1); glVertex3f( 1, 1, 0 );
glTexCoord2f(0, 1); glVertex3f( -1, 1, 0 );
glEnd();
SwapBuffers( hDC );
glDeleteTextures( 1, &texNum );
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