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WIP: preparing for major changes to atoms to fullfill needs of resolve_look_at and atom ported normalize_v3s4.

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ed
2026-08-09 18:49:59 -04:00
parent 69f2c0d036
commit e42c75a26a
14 changed files with 625 additions and 97 deletions
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code/duffle/gp.atom.c
-6
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@@ -21,8 +21,6 @@ FI_ Slice_MipsCode ac_store_rgb8(U1 rr, U1 rg, U1 rb, U4 base, U4 offset) atom_d
store_byte(rb, base, offset + O_(RGB8,b)),
})
/* Words: 3; Emits one (cmd|color) word to R_PrimCursor at the given
* byte offset. Internal helper used by the *_format_*_color macros. */
FI_ Slice_MipsCode ac_pack_color_word(U4 r_base, U4 off, U4 cmd, U1 r, U1 g, U1 b)
atom_dbg_skip MipsAtomComp_Proc_(ac_pack_color_word, {
load_upper_i(R_AT, (cmd) << 8 | (b)),
@@ -30,13 +28,9 @@ atom_dbg_skip MipsAtomComp_Proc_(ac_pack_color_word, {
store_word( R_AT, r_base, (off)),
})
/* Words: 3; Emits the F3 command+color word (cmd byte | BLUE | GREEN | RED)
* Args: _r, _g, _b are 8-bit RGB byte values (not raw 16-bit fields). */
FI_ Slice_MipsCode ac_format_f3_color(U4 r_base, U1 r, U1 g, U1 b)
atom_dbg_skip MipsAtomComp_Proc_(ac_format_f3_color, { mac_pack_color_word(r_base, O_(Poly_F3,color), gp0_cmd_poly_f3, r, g, b) })
/* Words: 12; Emits the four (code|color) words of a Poly_G4.
* Args: rN,gN,bN are 8-bit RGB byte values for each of the 4 vertices. */
FI_ Slice_MipsCode ac_format_g4_color(U4 r_prim_cursor,
U1 r0, U1 g0, U1 b0,
U1 r1, U1 g1, U1 b1,