fix(codes): encoding progress follows the work

The QR percentage counted phases and the display froze at 90 % once
encoding ended, so the first opening sat at 90 % while the slow stages
ran. Each 2D symbology now weights its phases by measured cost,
interpolates inside the long ones, and the display splits encode,
pack and runs; a cached code counts its runs from 0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 20 insertions, 1 deletions

diff --git a/source/codes/Aztec.mc b/source/codes/Aztec.mc
index 495abbf..0d4a856 100644
--- a/source/codes/Aztec.mc
+++ b/source/codes/Aztec.mc
@@ -44,6 +44,8 @@ module Aztec {
     const FIELD_ENTRIES_PER_STEP = 500;      // GF(1024) / GF(4096) tables
     const GENERATOR_WORK_PER_STEP = 500;     // generator coefficient updates
     const ECC_WORK_PER_STEP = 400;           // data symbols x EC symbols
+    // Cumulative percent at the end of each phase 0-5 (see AztecJob.percent).
+    const PHASE_ENDS = [8, 14, 20, 64, 72, 100];
     const GRID_LINES_PER_STEP = 4;           // reference grid
     const WORDS_PER_STEP = 50;               // codewords into bits
     const PAIRS_PER_STEP = 250;              // spiral bit pairs
@@ -314,8 +316,25 @@ module Aztec {
             _ec = EC_PERCENT[option] as Number;
         }
 
+        // Progress 0-100: the share of each phase (simulator timings; the
+        // Reed-Solomon codewords and the spiral take the most).
         function percent() as Number {
-            return _phase * 100 / 6;
+            var done = 0;
+            var total = 0;
+            var e = _encoder;
+            if (_phase == 3 && e != null) { // data symbols done
+                done = e.percent();
+                total = 100;
+            } else if (_phase == 5) { // bits placed
+                done = _at;
+                total = _bits.size();
+            }
+            return Codes.phased(PHASE_ENDS, _phase, done, total);
+        }
+
+        // Packing and runs: about 86 / 3 / 11 % of a whole display job.
+        function stageEnds() as Array<Number> {
+            return [86, 89];
         }
 
         function matrix() as Codes.Matrix? {