P1 native color matrix + crop (processColorAsync): parity verified on Xiaomi (classic-neg on black -> rgb(13,5,0), translate*255)

src/dev/nativeBenchProbe.ts

@@ -1,22 +1,51 @@
 import RecipescamExport from '../../modules/recipescam-export';
+import { applyExposureGain, getSkiaColorMatrix } from '../utils/colorUtils';
+import { BaseFilter, ColorAdjustments } from '../types';
 
 const RUNS = 3;
 
+const NEUTRAL_ADJ: ColorAdjustments = {
+  exposure: 0,
+  contrast: 0,
+  saturation: 0,
+  temperature: 5500,
+  tint: 0,
+  highlight: 0,
+  shadow: 0,
+  denoise: 0,
+  clarity: 0,
+  grain: 0,
+  colorChrome: 'none',
+  colorChromeBlue: 'none',
+  dynamicRange: 100,
+  sharpening: 0,
+  exposureCompensation: 0,
+};
+
 /**
- * P0 spike harness (temporary — removed at P7). Runs native decode+encode on
- * the bundled wallframe artwork (3117x4000, representative of a 12MP export)
- * and logs per-stage ms proving the JS thread is not blocked while native work
- * runs. Gated by EXPO_PUBLIC_BENCH=1.
- *
- * Release-build visibility is via native Log.i (RecipesCamExport tag) because
- * Hermes release builds strip console.* entirely. JS-side dispatch gaps appear
- * as the logcat deltas between consecutive decode "start" lines.
+ * P0/P1 probe harness (temporary — removed at P7).
+ * P0: native decode+encode on the bundled wallframe artwork (3117x4000).
+ * P1: native color matrix + crop path. Parity trick: classic-neg matrix applied
+ * to a pure-black image must yield translate*255 per channel in the native
+ * filter (Skia 0..1 space -> Android 0..255 space), i.e. ~(13, 5, 0); the
+ * center pixel is logged natively (RecipesCamExport tag) since release Hermes
+ * strips console.*.
  */
 export async function nativeBenchProbe(): Promise<void> {
   const m = RecipescamExport as any;
   try {
     const pong = await m.ping();
     const src: string = await m.materializeBenchAsset('wallframe');
+    // P1 parity: classic-neg matrix on black -> expect center ~(13,5,0).
+    const matrix = applyExposureGain(getSkiaColorMatrix('classic-neg' as BaseFilter, NEUTRAL_ADJ), 0);
+    const black = await m.materializeBlackAsset();
+    const blackOut = black.replace(/\.png$/, `-neg-${Date.now()}.jpg`);
+    await m.processColorAsync(black, blackOut, matrix, null, 95);
+    console.error('[BENCH] classic-neg-on-black matrix[0..4]=' + matrix.slice(0, 5).join(','));
+
+    // P0 runs (decode+encode) + P1 identity-matrix run on the real artwork.
+    const identity = new Array(20).fill(0);
+    identity[0] = identity[6] = identity[12] = identity[18] = 1;
     for (let i = 0; i < RUNS; i++) {
       const t0 = Date.now();
       const dst = src.replace(/\.png$/, `-out-${Date.now()}-${i}.jpg`);
@@ -26,6 +55,11 @@ export async function nativeBenchProbe(): Promise<void> {
         ' decodeMs=' + timings.decodeMs + ' encodeWriteMs=' + timings.encodeWriteMs +
         ' totalMs=' + timings.totalMs + ' pong=' + pong
       );
+      // P1 crop: center 2000x2000 window of the 3117x4000 artwork.
+      const crop = { x: Math.round((3117 - 2000) / 2), y: Math.round((4000 - 2000) / 2), width: 2000, height: 2000 };
+      const colorDst = src.replace(/\.png$/, `-color-${Date.now()}-${i}.jpg`);
+      const ct = await m.processColorAsync(src, colorDst, identity, crop, 95);
+      console.error('[BENCH] colorRun=' + i + ' decodeMs=' + ct.decodeMs + ' colorMs=' + ct.colorMs + ' encodeWriteMs=' + ct.encodeWriteMs + ' totalMs=' + ct.totalMs);
     }
   } catch (e) {
     console.error('[BENCH] failed', e);