code wiki / _hdl_build / nx_jpeg_color_write_gate.nx
nx_jpeg_color_write_gate.nx
buildroot/runtime/_hdl_build/nx_jpeg_color_write_gate.nx
about
nx_jpeg_color_write_gate.nx -- SOVEREIGN gate for the baseline COLOR JFIF writer. Encodes a synthetic RGB
image to a real .jpg (/mnt/c/Users/elder/nishi_color_test.jpg), then validates WITHOUT python/3rd-party:
T1 SOI+EOI; T2 marker walk -> SOS + SOF0 dims + 3 components; T3 two DQT + DHT present; T4 entropy
round-trip (un-stuff, decode the interleaved Y/Cb/Cr MCUs with our own jbe_decode_block, dequant+IDCT,
YCbCr->RGB, reconstruct -> faithful); T5 the .jpg compresses below raw RGB; T6 file landed. GREEN iff 6/6.
license_tier: ORIGINAL
dependencies 10 imports · 0 importers
imports: nx_syscalls.nxnx_gate_emit_lib.nxnx_h264_bitwriter.nxnx_dct8.nxnx_quant_table.nxnx_zigzag.nxnx_jpeg_huff_enc.nxnx_jpeg_block_enc.nxnx_jpeg_write.nxnx_jpeg_color_write.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| none |
functions
| 18 | func g_num(v: i64) -> i64 { let bb: *u8=sys_mmap(28); var m: i64=v; if m<0{m=0-m;sys_write(1,"-" as *u8,1)}; let t: *u8=sys_mmap(28); var k: i64=0; if m==0{t[0]=(48 as u8);k=1}; while m>0{t[k]=((48+(m%10)) as u8);m=m/10;k=k+1}; var i: i64=0; while i<k{bb[i]=t[k-1-i];i=i+1}; sys_write(1,bb,k); return 0 } |
| 19 | func iabs(v: i64) -> i64 { if v<0 { return 0-v } return v } called by 1: main |
| 20 | func clamp8(v: i64) -> i64 { if v<0 { return 0 } if v>255 { return 255 } return v } called by 1: main |
| 21 | func u16b(b: *u8, o: i64) -> i64 { return ((b[o] as i64)<<8) | (b[o+1] as i64) } called by 1: main |
| 23 | func main() -> i64 |