check_error();
glBindTexture(GL_TEXTURE_2D, texture_num);
check_error();
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ check_error();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
check_error();
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch);