+extern GLboolean
+_mesa_convert_texsubimage3d( GLint mesaFormat,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLint imageWidth, GLint imageHeight,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *packing,
+ const GLvoid *srcImage, GLvoid *dstImage );
+
+/* Nearest filtering only (for broken hardware that can't support
+ * all aspect ratios). FIXME: Make this a subimage update as well...
+ */