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https://github.com/open-goal/jak-project
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ManDude
cd68cb671e
Major change to how `deftype` shows up in our code: - the decompiler will no longer emit the `offset-assert`, `method-count-assert`, `size-assert` and `flag-assert` parameters. There are extremely few cases where having this in the decompiled code is helpful, as the types there come from `all-types` which already has those parameters. This also doesn't break type consistency because: - the asserts aren't compared. - the first step of the test uses `all-types`, which has the asserts, which will throw an error if they're bad. - the decompiler won't emit the `heap-base` parameter unless necessary now. - the decompiler will try its hardest to turn a fixed-offset field into an `overlay-at` field. It falls back to the old offset if all else fails. - `overlay-at` now supports field "dereferencing" to specify the offset that's within a field that's a structure, e.g.: ```lisp (deftype foobar (structure) ((vec vector :inline) (flags int32 :overlay-at (-> vec w)) ) ) ``` in this structure, the offset of `flags` will be 12 because that is the final offset of `vec`'s `w` field within this structure. - **removed ID from all method declarations.** IDs are only ever automatically assigned now. Fixes #3068. - added an `:overlay` parameter to method declarations, in order to declare a new method that goes on top of a previously-defined method. Syntax is `:overlay <method-name>`. Please do not ever use this. - added `state-methods` list parameter. This lets you quickly specify a list of states to be put in the method table. Same syntax as the `states` list parameter. The decompiler will try to put as many states in this as it can without messing with the method ID order. Also changes `defmethod` to make the first type definition (before the arguments) optional. The type can now be inferred from the first argument. Fixes #3093. --------- Co-authored-by: Hat Kid <6624576+Hat-Kid@users.noreply.github.com>
73 lines
2.2 KiB
Common Lisp
73 lines
2.2 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: matrix-h.gc
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;; name in dgo: matrix-h
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;; dgos: ENGINE, GAME
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;; DECOMP BEGINS
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;; A 4x4 matrix, stored in row-major order
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;; some, but not all, functions assume that a matrix is an affine transform.
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;; others assume that the rotation has no scale or shear (and that its inverse is its transpose)
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(deftype matrix (structure)
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((data float 16)
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(vector vector 4 :inline :overlay-at (-> data 0))
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(quad uint128 4 :overlay-at (-> data 0))
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(trans vector :inline :overlay-at (-> data 12))
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)
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(:methods
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(transform-vectors! (_type_ (inline-array vector) (inline-array vector) int) none)
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)
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)
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;; A 3x3 matrix, stored in row-major order.
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;; NOTE: the rows each have an extra 4-bytes of padding
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;; so this is really a 3x4 matrix.
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;; this type is rarely used
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(deftype matrix3 (structure)
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((data float 12)
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(vector vector 3 :inline :overlay-at (-> data 0))
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(quad uint128 3 :overlay-at (-> data 0))
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)
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)
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;; a matrix stored using 16-bit integers.
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;; note that these usually have different scaling for the 4th row which
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;; contains the translation in an affine transform.
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;; so you generally should not unpack these to floats without knowing where they came from
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;; and how they were originally packed (for example, in tie/shrub)
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(deftype matrix4h (structure)
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((data int16 16)
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(vector4h vector4h 4 :inline :overlay-at (-> data 0))
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(long int64 4 :overlay-at (-> data 0))
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)
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)
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(defun matrix-copy! ((arg0 matrix) (arg1 matrix))
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"Copy arg1 to arg0"
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(let ((v1-0 (-> arg1 quad 0))
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(a2-0 (-> arg1 quad 1))
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(a3-0 (-> arg1 quad 2))
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(a1-1 (-> arg1 trans quad))
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)
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(set! (-> arg0 quad 0) v1-0)
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(set! (-> arg0 quad 1) a2-0)
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(set! (-> arg0 quad 2) a3-0)
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(set! (-> arg0 trans quad) a1-1)
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)
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arg0
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)
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(defmacro new-stack-matrix0 ()
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"Get a new matrix on the stack that's set to zero."
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`(let ((mat (new 'stack-no-clear 'matrix)))
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(set! (-> mat quad 0) (the-as uint128 0))
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(set! (-> mat quad 1) (the-as uint128 0))
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(set! (-> mat quad 2) (the-as uint128 0))
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(set! (-> mat quad 3) (the-as uint128 0))
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mat
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)
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)
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