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https://github.com/open-goal/jak-project.git
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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>
220 lines
5.9 KiB
Common Lisp
220 lines
5.9 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: shadow-cpu-h.gc
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;; name in dgo: shadow-cpu-h
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;; dgos: GAME, ENGINE
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;; The shadow renderer is partially on the EE and on VU1.
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;; This "shadow-cpu" portion is what runs on the EE.
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;; The renderer generates a shadow volume and uses some bits in the alpha plane like a stencil buffer.
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;; It reuses the bones of the merc renderer, but uses a simplified mesh and at most 2 bones per vertex.
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(defenum shadow-flags
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:bitfield #t
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:type int32
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(shdf00)
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(disable-fade) ;; ignore max distance settings
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(shdf02)
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(shdf03)
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(shdf04)
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(disable-draw) ;; disable completely.
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)
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;; settings computed by the user, consumed by the shadow renderer
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(deftype shadow-settings (structure)
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((center vector :inline) ;; unused?
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(flags shadow-flags :overlay-at (-> center w)) ;; used to disable, most other flags do nothing?
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(shadow-dir vector :inline)
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(dist-to-locus float :overlay-at (-> shadow-dir w))
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(bot-plane plane :inline) ;; volume clip plane
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(top-plane plane :inline)
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(fade-dist float) ;; if past this, stop drawing shadow
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(fade-start float) ;; distance where fadeout starts
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(dummy-2 int32)
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(dummy-3 int32)
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(fade-vec vector :inline :overlay-at fade-dist) ;; added
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)
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)
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(deftype shadow-control (basic)
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((settings shadow-settings :inline)
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)
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(:methods
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(new (symbol type float float float float float) _type_)
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(clear-offset-bit (shadow-control) int)
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(set-offset-bit (shadow-control) int)
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(set-top-plane-offset (shadow-control float) int)
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(set-bottom-plane-offset (shadow-control float) int)
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(unused-13 (_type_) none)
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(update-direction-from-time-of-day (_type_) none)
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(collide-to-find-planes (_type_ vector float float float) none)
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)
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)
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(defmethod clear-offset-bit shadow-control ((obj shadow-control))
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"Clear a bit in w for the center of the shadow."
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(set! (-> obj settings center w)
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(the-as float (logand (lognot #x20)
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(the-as int (-> obj settings center w))))
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)
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0
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)
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(defmethod set-offset-bit shadow-control ((obj shadow-control))
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"Set a bit in w for the center position of the shadow"
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(set! (-> obj settings center w)
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(the-as float (logior (the-as int (-> obj settings center w))
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#x20))
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)
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0
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)
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(defmethod set-bottom-plane-offset shadow-control ((obj shadow-control) (arg0 float))
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(set! (-> obj settings bot-plane d) (- arg0))
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0
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)
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(defmethod set-top-plane-offset shadow-control ((obj shadow-control) (arg0 float))
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(set! (-> obj settings top-plane d) (- arg0))
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0
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)
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(deftype shadow-data (structure)
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((texoffset vector :inline)
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(texscale vector :inline)
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(clrs vector 2 :inline)
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(dma-unpack-template dma-packet :inline)
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(dma-cnt dma-tag)
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(vif-nop vif-tag)
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(vif-unpack-v4-8 vif-tag)
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(pdc basic)
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(dist float)
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(oddeven uint8)
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(waits uint32)
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)
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)
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(deftype shadow-work (structure)
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((shadow-data shadow-data :inline)
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(inbuf uint128 600)
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)
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)
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(deftype shadow-run (structure)
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((first dma-packet)
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(next (pointer dma-packet))
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)
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:allow-misaligned
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)
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(deftype shadow-queue (structure)
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((num-runs uint32)
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(cur-run uint32)
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(run shadow-run 15 :inline)
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)
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)
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(defun shadow-queue-append ((arg0 shadow-queue))
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"Increment the run counter"
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(set! (-> arg0 cur-run) (+ (-> arg0 cur-run) 1))
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)
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(defun shadow-queue-reset ((arg0 shadow-queue))
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"Reset the run counter"
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(set! (-> arg0 cur-run) 0)
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)
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(define *shadow-queue* (new 'global 'shadow-queue))
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(deftype shadow-vertex (structure)
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((x float)
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(y float)
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(z float)
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(weight float)
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)
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)
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(deftype shadow-matrix-ref (structure)
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((joint-0 uint8)
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(joint-1 uint8)
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)
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)
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;; og:preserve-this
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;; BUG:
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;; the shadow-edge type is multiply defined.
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;; it seems like the first definition is not used.
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;; The OpenGOAL compiler doesn't like this, so this is commented out.
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#|
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;; shadow-cpu-h
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; (deftype shadow-edge (structure) ;
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; ((ind-0 uint16 :offset-assert 0) ;
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; (ind-1 uint16 :offset-assert 2) ;
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; (tri-0 uint16 :offset-assert 4) ;
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; (tri-1 uint16 :offset-assert 6) ;
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; ) ;
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; :method-count-assert 9 ;
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; :size-assert #x4 ;
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; :flag-assert #x900000004 ;
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; ) ;
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|#
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(deftype shadow-tri (structure)
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((ind-0 uint8)
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(ind-1 uint8)
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(ind-2 uint8)
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(faces uint8)
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)
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)
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(deftype shadow-edge (structure)
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((ind-0 uint8)
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(ind-1 uint8)
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(tri-0 uint8)
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(tri-1 uint8)
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)
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)
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(deftype shadow-header (structure)
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((qwc-data uint32)
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(num-joints uint32)
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(num-verts uint16)
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(num-twos uint16)
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(num-single-tris uint16)
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(num-single-edges uint16)
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(num-double-tris uint16)
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(num-double-edges uint16)
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(ofs-verts uint32)
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(ofs-refs uint32)
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(ofs-single-tris uint32)
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(ofs-single-edges uint32)
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(ofs-double-tris uint32)
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(ofs-double-edges uint32)
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)
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)
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(deftype shadow-geo (art-element)
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((total-size uint32)
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(header shadow-header :inline :overlay-at total-size)
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(rest uint64 :dynamic)
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)
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)
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(defmethod new shadow-control ((allocation symbol) (type-to-make type) (bottom-offset float) (top-offset float) (dir float) (center float) (fade float))
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(let ((obj (object-new allocation type-to-make (the-as int (-> type-to-make size)))))
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(set! (-> obj settings center w) center)
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(set-vector! (-> obj settings shadow-dir) 0.0 -1.0 0.0 dir)
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(set-vector! (-> obj settings bot-plane) 0.0 1.0 0.0 (- bottom-offset))
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(set-vector! (-> obj settings top-plane) 0.0 1.0 0.0 (- top-offset))
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(set! (-> obj settings fade-dist) fade)
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obj
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)
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)
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(define *shadow* #f)
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(define *shadow-object* #f)
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(define *shadow-debug* #f)
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