Get the right transform for a pattern before filling some text

It fixes #16091.

src/display/canvas.js

@@ -2137,6 +2137,23 @@ class CanvasGraphics {
       fillStrokeMode === TextRenderingMode.STROKE ||
       fillStrokeMode === TextRenderingMode.FILL_STROKE;
 
+    let lineWidth = current.lineWidth;
+    const scale = current.textMatrixScale;
+    if (scale === 0 || lineWidth === 0) {
+      if (needsStroke) {
+        lineWidth = this.getSinglePixelWidth();
+      }
+    } else {
+      lineWidth /= scale;
+    }
+
+    if (fontSizeScale !== 1.0) {
+      ctx.scale(fontSizeScale, fontSizeScale);
+      lineWidth /= fontSizeScale;
+    }
+
+    ctx.lineWidth = lineWidth;
+
     if (needsFill && current.patternFill) {
       ctx.save();
       const pattern = current.fillColor.getPattern(
@@ -2165,23 +2182,6 @@ class CanvasGraphics {
       ctx.strokeStyle = pattern;
     }
 
-    let lineWidth = current.lineWidth;
-    const scale = current.textMatrixScale;
-    if (scale === 0 || lineWidth === 0) {
-      if (needsStroke) {
-        lineWidth = this.getSinglePixelWidth();
-      }
-    } else {
-      lineWidth /= scale;
-    }
-
-    if (fontSizeScale !== 1.0) {
-      ctx.scale(fontSizeScale, fontSizeScale);
-      lineWidth /= fontSizeScale;
-    }
-
-    ctx.lineWidth = lineWidth;
-
     if (font.isInvalidPDFjsFont) {
       const chars = [];
       let width = 0;

test/pdfs/.gitignore

@@ -896,3 +896,4 @@
 !bug2026037.pdf
 !tiling_patterns_variations.pdf
 !function_based_shading.pdf
+!issue16091.pdf

test/test_manifest.json

@@ -14052,5 +14052,12 @@
     "lastPage": 1144,
     "rounds": 1,
     "type": "eq"
+  },
+  {
+    "id": "issue16091",
+    "file": "pdfs/issue16091.pdf",
+    "md5": "ac6b2b69d9b3675b317708ec00aaf56c",
+    "rounds": 1,
+    "type": "eq"
   }
 ]