code wiki / _hdl_build / nx_apng_decode_gate.nx

nx_apng_decode_gate.nx

buildroot/runtime/_hdl_build/nx_apng_decode_gate.nx

4445 B91 linesdepth 9pulls 15 transitivereach 0 importersview sourcekind gate/prooftopic apng
docsdependenciesstructsconstsfunctions

about

nx_apng_decode_gate.nx -- prove animated-media INGEST (roadmap R1): encode known frames -> decode -> BIT-EXACT recovery (the encoder/decoder invert), and decode a REAL APNG we shipped (synth_wolfwalk.png) -> right frame count + dims. This is "ingest video/gif/image -> frames", the front door of video->pose->motion. expect_exit:0 license_tier: ORIGINAL

dependencies 3 imports · 0 importers

nx_syscalls.nx nx_apng.nx nx_apng_decode.nx nx_apng_decode_gate.nx

imports: nx_syscalls.nxnx_apng.nxnx_apng_decode.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main hw sys_write sys_mmap apng_open sys_mmap ↻ ap_be32 ap_chunk ap_be32 ↻ ap_crc32 apng_frame sys_mmap ↻ ap_be32 ↻ ap_be16 ap_chunk ↻ ap_fb_to_zlib sys_mmap ↻ ap_g ap_paeth ap_sabs dfe_compress sys_mmap ↻ dfe_fill_tables dfe_deflate sys_mmap ↻ dfe_bits dfe_hash dfe_matchlen dfe_sym dfe_bits ↻ dfe_rev dfe_rev ↻ sys_munmap sys_munmap ↻ ap_be32 ↻ ap_adler32 apng_close sys_mmap ↻ ap_chunk ↻ pn

structs

none

consts

12const TW: i64 = 8
13const TH: i64 = 8
14const TN: i64 = 5

functions

9func hw(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 }
called by 1: main calls 1: sys_write
10func 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 }
called by 1: main calls 2: sys_mmapsys_write
16func main() -> i64