code wiki / png
topic: png
16 modules sharing the png name family (derived from the tree's prefix discipline).
The 'png' topic family in the Nishi sovereign ecosystem provides comprehensive support for PNG image processing, encompassing encoding, decoding, and analysis. The nx_png module serves as the core RGB8 encoder, while nx_png_decoder ensures compliance with RFC 2083 standards. nx_png_header parses essential metadata, enabling seamless integration with the broader ecosystem.
auto-narrated by the local model from this topic's module headers; links verified against the wiki index.
narrated overview -- maintained by the narration lane, module links verified against this wiki.
| module | description | lines | funcs |
|---|---|---|---|
| nx_png.nx | SOVEREIGN PNG (RGB8) encoder in NishiLang. No zlib/libpng/python: adaptive per-scanline | 340 | 15 |
| nx_png_adam7_gate.nx | gate for C1 of the codec-chokepoint program (debt 1785903075): PNG Adam7 | 273 | 14 |
| nx_png_capacity_baseline_t278.nx | 28 | 3 | |
| nx_png_capacity_gate_t278.nx | 52 | 5 | |
| nx_png_capacity_t278.nx | SOVEREIGN PNG (RGB8) encoder in NishiLang. No zlib/libpng/python: adaptive per-scanline | 340 | 15 |
| nx_png_chunks.nx | THE PNG CHUNK WALK (one reader, shared): signature, then [length(4, big-endian)][type(4)][data][crc(4)] | 123 | 8 |
| nx_png_decoder.nx | RFC 2083 PNG decoder. | 822 | 14 |
| nx_png_dynamic_huffman_test.nx | regression smoke proving nx_png_decode | 166 | 1 |
| nx_png_header.nx | parse PNG signature + IHDR + chunk stream. | 171 | 7 |
| nx_png_lum.nx | sovereign PNG mean-luminance probe over a content rectangle. Turns "the page looks dark" | 52 | 3 |
| nx_png_probe.nx | Rule-2 verification: does the existing nx_png_decode | 38 | 3 |
| nx_png_real_smoke.nx | end-to-end PNG decode verification. | 235 | 3 |
| nx_png_textw.nx | sovereign PNG tEXt-chunk WRITER. The reader (_pe_pngtext_locate) already | 85 | 4 |
| nx_png_textw_gate.nx | proves the sovereign PNG tEXt writer produces ingest-readable, | 60 | 4 |
| nx_png_write.nx | sovereign PNG ENCODER so the Nishi ecosystem can output a render that any viewer | 108 | 5 |
| png_header.nx | parse PNG signature + IHDR + chunk stream. | 165 | 7 |