extern void
_mesa_swap4( GLuint *p, GLuint n );
+extern GLboolean
+_mesa_type_is_packed(GLenum type);
+
extern GLint
_mesa_sizeof_type( GLenum type );
const struct gl_pixelstore_attrib *srcPacking,
GLbitfield transferOps );
+extern void
+_mesa_unpack_dudv_span_byte( GLcontext *ctx,
+ GLuint n, GLenum dstFormat, GLbyte dest[],
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *source,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLbitfield transferOps );
extern void
_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,