mirror of
https://github.com/open-goal/jak-project
synced 2026-08-10 11:14:50 -04:00
Tyler Wilding
124 lines
6.1 KiB
Common Lisp
124 lines
6.1 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: math-camera-h.gc
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;; name in dgo: math-camera-h
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;; dgos: ENGINE, GAME
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#|@file
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The "math-camera" is responsible for computing the projection matrix used in the renderer
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from the position of the in-game camera. It also computes some other common camera info.
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See cam-update.gc for how the game camera updates the math-camera.
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It also contains some GIF stuff, but these seem to be wrong/unused.
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Some of the code here may be extremely old and unused, but this does compute the camera projection
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matrix used almost everywhere.
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|#
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;; DECOMP BEGINS
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;; unused...
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(deftype vis-gif-tag (structure)
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((fog0 uint32 :offset-assert 0)
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(strip uint32 :offset-assert 4)
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(regs uint32 :offset-assert 8)
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(fan uint32 :offset-assert 12)
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)
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:method-count-assert 9
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:size-assert #x10
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:flag-assert #x900000010
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)
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;; also seems unused?
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(deftype cull-info (structure)
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((x-fact float :offset-assert 0)
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(y-fact float :offset-assert 4)
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(z-fact float :offset-assert 8)
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(cam-radius float :offset-assert 12)
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(cam-x float :offset-assert 16)
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(cam-y float :offset-assert 20)
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(xz-dir-ax float :offset-assert 24)
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(xz-dir-az float :offset-assert 28)
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(xz-dir-bx float :offset-assert 32)
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(xz-dir-bz float :offset-assert 36)
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(xz-cross-ab float :offset-assert 40)
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(yz-dir-ay float :offset-assert 44)
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(yz-dir-az float :offset-assert 48)
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(yz-dir-by float :offset-assert 52)
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(yz-dir-bz float :offset-assert 56)
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(yz-cross-ab float :offset-assert 60)
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)
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:allow-misaligned
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:method-count-assert 9
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:size-assert #x40
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:flag-assert #x900000040
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)
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(deftype math-camera (basic)
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((d meters :offset-assert 4)
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(f meters :offset-assert 8)
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(fov degrees :offset-assert 12)
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(x-ratio float :offset-assert 16)
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(y-ratio float :offset-assert 20)
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(x-pix float :offset-assert 24)
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(x-clip float :offset-assert 28)
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(x-clip-ratio-in float :offset-assert 32)
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(x-clip-ratio-over float :offset-assert 36)
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(y-pix float :offset-assert 40)
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(y-clip float :offset-assert 44)
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(y-clip-ratio-in float :offset-assert 48)
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(y-clip-ratio-over float :offset-assert 52)
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(cull-info cull-info :inline :offset-assert 56)
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(fog-start meters :offset-assert 120)
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(fog-end meters :offset-assert 124)
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(fog-max float :offset-assert 128)
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(fog-min float :offset-assert 132)
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(reset int32 :offset-assert 136)
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(smooth-step float :offset-assert 140)
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(smooth-t float :offset-assert 144)
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(perspective matrix :inline :offset-assert 160)
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(isometric matrix :inline :offset-assert 224)
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(sprite-2d matrix :inline :offset-assert 288)
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(sprite-2d-hvdf vector :inline :offset-assert 352)
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(camera-rot matrix :inline :offset-assert 368)
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(inv-camera-rot matrix :inline :offset-assert 432)
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(inv-camera-rot-smooth matrix :inline :offset-assert 496)
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(inv-camera-rot-smooth-from quaternion :inline :offset-assert 560)
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(camera-temp matrix :inline :offset-assert 576)
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(prev-camera-temp matrix :inline :offset-assert 640)
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(prev-inv-camera-rot matrix :inline :offset-assert 704)
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(prev-trans vector :inline :offset-assert 768)
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(hmge-scale vector :inline :offset-assert 784)
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(inv-hmge-scale vector :inline :offset-assert 800)
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(hvdf-off vector :inline :offset-assert 816)
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(guard vector :inline :offset-assert 832)
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(vis-gifs vis-gif-tag 4 :inline :offset-assert 848)
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(giftex uint128 :offset 848)
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(gifgr uint128 :offset 864)
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(giftex-trans uint128 :offset 880)
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(gifgr-trans uint128 :offset 896)
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(pfog0 float :offset-assert 912)
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(pfog1 float :offset-assert 916)
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(trans vector :inline :offset-assert 928)
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(plane plane 4 :inline :offset-assert 944)
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(guard-plane plane 4 :inline :offset-assert 1008)
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(shrub-mat matrix :inline :offset-assert 1072)
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(quat-other quaternion :inline :offset-assert 1136)
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(trans-other vector :inline :offset-assert 1152)
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(shrub-mat-other matrix :inline :offset-assert 1168)
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(camera-temp-other matrix :inline :offset-assert 1232)
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(camera-rot-other matrix :inline :offset-assert 1296)
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(inv-camera-rot-other matrix :inline :offset-assert 1360)
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(plane-other plane 4 :inline :offset-assert 1424)
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(guard-plane-other plane 4 :inline :offset-assert 1488)
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(mirror-trans vector :inline :offset-assert 1552)
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(mirror-normal vector :inline :offset-assert 1568)
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(fov-correction-factor float :offset-assert 1584)
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)
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(:methods (new (symbol type) _type_ 0))
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:method-count-assert 9
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:size-assert #x634
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:flag-assert #x900000634
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)
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