glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
check_error();
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
check_error();
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch);