nx_gltf_load_gate.nx source

1// nx_gltf_load_gate.nx -- ★NATIVE sovereign glTF viewer: load our exported nishi_being.glb back into the Nishi renderer and 2// render it -- proving the round-trip on OUR OWN stack (closes the honest-scope gap) and giving Nishi OS / the Nishi browser 3// a native .glb view. T1 loads. T2 counts round-trip (verts/tris == export). T3 renders (filled). T4 turntable PNG. 4// license_tier: ORIGINAL expect_exit: 0 5import "nx_syscalls.nx" 6import "nx_png.nx" 7import "nx_trimesh.nx" 8import "nx_gltf_load.nx" 9 10func hw(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 } 11func pn(v: i64) -> i64 { let b: *u8=sys_mmap(32) as *u8; var x: i64=v; var ng: i64=0; if x<0{ng=1;x=0-x} var i: i64=31; if x==0{b[i]=48 as u8;i=i-1} while x>0{b[i]=(48+x%10) as u8;x=x/10;i=i-1} if ng==1{b[i]=45 as u8;i=i-1} sys_write(1,(b as i64+i+1) as *u8,31-i); return 0 } 12func clearfb(fb: *i64, n: i64, c: i64) -> i64 { var i: i64=0; while i<n { fb[i]=c; i=i+1 } return 0 } 13func filled(fb: *i64, n: i64, bg: i64) -> i64 { var c: i64=0; var i: i64=0; while i<n { if fb[i]!=bg { c=c+1 } i=i+1 } return c } 14 15const BG: i64 = 24 + 26*256 + 34*65536 16const W: i64 = 300 17const H: i64 = 460 18 19func main() -> i64 { 20 hw("=== nx_gltf_load_gate -- load nishi_being.glb into the Nishi renderer (native sovereign view) ===\n" as *u8) 21 var fails: i64 = 0 22 let ok: i64 = gltf_load("knowledge/nishi_being.glb" as *u8) 23 let nv: i64 = tm_nv(); let nt: i64 = tm_nt() 24 hw(" loaded: ok="); pn(ok); hw(" verts="); pn(nv); hw(" tris="); pn(nt); hw(" overflow="); pn(tm_ovf()); hw("\n" as *u8) 25 var t1: i64 = 0 26 if ok == 1 { if nv > 1000 { if tm_ovf() == 0 { t1 = 1 } } } 27 if t1 == 1 { hw("T1 PASS parsed the .glb into the native renderer\n" as *u8) } else { fails=fails+1; hw("T1 FAIL\n" as *u8) } 28 // round-trip: the export was 7954 verts / 15912 tris 29 var t2: i64 = 0 30 if nv == 7954 { if nt == 15912 { t2 = 1 } } 31 if t2 == 1 { hw("T2 PASS counts round-trip exactly (7954 verts / 15912 tris)\n" as *u8) } else { fails=fails+1; hw("T2 FAIL nv="); pn(nv); hw(" nt="); pn(nt); hw("\n" as *u8) } 32 33 let npx: i64 = W*H 34 let fb: *i64 = sys_mmap(npx*8) as *i64 35 let zb: *i64 = sys_mmap(npx*8) as *i64 36 clearfb(fb, npx, BG); trimesh_zclear(zb, npx); trimesh_render(fb, zb, W, H, 2400, 0-200, 2600, 520, 2) 37 let fil: i64 = filled(fb, npx, BG) 38 hw(" render: filled="); pn(fil); hw("\n" as *u8) 39 var t3: i64 = 0 40 if fil > npx/12 { t3 = 1 } 41 if t3 == 1 { hw("T3 PASS the loaded .glb RENDERS on our stack (sovereign round-trip verified)\n" as *u8) } else { fails=fails+1; hw("T3 FAIL\n" as *u8) } 42 43 // T4 turntable: 3 views of the loaded model 44 let yaws: *i64 = sys_mmap(3*8) as *i64 45 yaws[0]=1400; yaws[1]=3200; yaws[2]=5600 46 let GW: i64 = W*3 47 let gal: *i64 = sys_mmap(GW*H*8) as *i64 48 clearfb(gal, GW*H, BG) 49 let cell: *i64 = sys_mmap(npx*8) as *i64 50 var v: i64 = 0 51 while v < 3 { 52 clearfb(cell, npx, BG); trimesh_zclear(zb, npx); trimesh_render(cell, zb, W, H, yaws[v], 0-200, 2600, 520, 2) 53 var y: i64 = 0 54 while y < H { var x: i64=0; while x<W { gal[y*GW+v*W+x]=cell[y*W+x]; x=x+1 } y=y+1 } 55 v = v + 1 56 } 57 write_png(gal, GW, H, "knowledge/nx_gltf_view.png" as *u8) 58 hw("T4 native turntable -> knowledge/nx_gltf_view.png (loaded .glb, 3 views)\n" as *u8) 59 60 if fails == 0 { hw("GLTF-LOAD-GATE GREEN -- the Nishi renderer NATIVELY loads + views a .glb (round-trip from our own export, verified on our own stack). Nishi OS / Nishi browser can view 3D models sovereignly.\n" as *u8); sys_exit(0); return 0 } 61 hw("GLTF-LOAD-GATE RED fails="); pn(fails); hw("\n" as *u8) 62 sys_exit(1) 63 return 1 64}