Files
jak-project/goal_src/engine/math/matrix-h.gc
T
2020-11-28 20:53:13 -05:00

49 lines
1.1 KiB
Common Lisp

;;-*-Lisp-*-
(in-package goal)
;; name: matrix-h.gc
;; name in dgo: matrix-h
;; dgos: GAME, ENGINE
;; matrix-h
(deftype matrix (structure)
((data float 16 :offset-assert 0)
(vector vector 4 :offset 0)
(quad uint128 4 :offset 0)
)
:method-count-assert 10
:size-assert #x40
:flag-assert #xa00000040
(:methods
(dummy-9 () none 9)
)
)
(deftype matrix3 (structure)
((data float 12 :offset-assert 0)
(vector vector 3 :offset 0)
(quad uint128 3 :offset 0)
)
:method-count-assert 9
:size-assert #x30
:flag-assert #x900000030
)
;; guess on signs here
(deftype matrix4h (structure)
((data int16 16 :offset-assert 0)
(vector4h vector4h 4 :offset 0)
(long int64 4 :offset 0)
)
:method-count-assert 9
:size-assert #x20
:flag-assert #x900000020
)
(defun matrix-copy! ((dst matrix) (src matrix))
"Copy src to dst."
;; actual implementation is in assembly, unrolled quad copies, loads/stores spaced out.
(dotimes (i 16 dst)
(set! (-> dst data i) (-> src data i))
)
)