1 files changed, 41 insertions, 0 deletions
diff --git a/src/deps/skia/include/private/chromium/GrSlug.h b/src/deps/skia/include/private/chromium/GrSlug.h
new file mode 100644
index 000000000..8adbff45c
--- /dev/null
+++ b/src/deps/skia/include/private/chromium/GrSlug.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrSlug_DEFINED
+#define GrSlug_DEFINED
+
+#include "include/core/SkRect.h"
+#include "include/core/SkRefCnt.h"
+
+class SkCanvas;
+class SkPaint;
+class SkTextBlob;
+
+// You can use GrSlug to simulate drawTextBlob by defining the following at compile time.
+//    SK_EXPERIMENTAL_SIMULATE_DRAWGLYPHRUNLIST_WITH_SLUG
+// For Skia, add this to your args.gn file.
+//    extra_cflags = ["-D", "SK_EXPERIMENTAL_SIMULATE_DRAWGLYPHRUNLIST_WITH_SLUG"]
+
+// GrSlug encapsulates an SkTextBlob at a specific origin, using a specific paint. It can be
+// manipulated using matrix and clip changes to the canvas. If the canvas is transformed, then
+// the GrSlug will also transform with smaller glyphs using bi-linear interpolation to render. You
+// can think of a GrSlug as making a rubber stamp out of a SkTextBlob.
+class SK_API GrSlug : public SkRefCnt {
+public:
+    ~GrSlug() override;
+    // Return nullptr if the blob would not draw. This is not because of clipping, but because of
+    // some paint optimization. The GrSlug is captured as if drawn using drawTextBlob.
+    static sk_sp<GrSlug> ConvertBlob(
+            SkCanvas* canvas, const SkTextBlob& blob, SkPoint origin, const SkPaint& paint);
+
+    // Draw the GrSlug obeying the canvas's mapping and clipping.
+    void draw(SkCanvas* canvas);
+
+    virtual SkRect sourceBounds() const = 0;
+    virtual const SkPaint& paint() const = 0;
+};
+#endif  // GrSlug_DEFINED