update pipe for lattice and shadowrec

- move some lattice routines into shared helper (SkCanvasPriv)

Bug: skia:
Change-Id: Ibbb80dd7461c7fd3082a0220604ab42cbb8815be
Reviewed-on: https://skia-review.googlesource.com/90540
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Reed <reed@google.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/core/SkCanvasPriv.h b/src/core/SkCanvasPriv.h
index dfae154ecb..12d9fce027 100644
--- a/src/core/SkCanvasPriv.h
+++ b/src/core/SkCanvasPriv.h
@@ -10,6 +10,9 @@
 
 #include "SkCanvas.h"
 
+class SkReadBuffer;
+class SkWriteBuffer;
+
 class SkAutoCanvasMatrixPaint : SkNoncopyable {
 public:
     SkAutoCanvasMatrixPaint(SkCanvas*, const SkMatrix*, const SkPaint*, const SkRect& bounds);
@@ -20,4 +23,16 @@ private:
     int         fSaveCount;
 };
 
+class SkCanvasPriv {
+public:
+    // The lattice has pointers directly into the readbuffer
+    static bool ReadLattice(SkReadBuffer&, SkCanvas::Lattice*);
+
+    static void WriteLattice(SkWriteBuffer&, const SkCanvas::Lattice&);
+
+    // return the byte-size of the lattice, even if the buffer is null
+    // storage must be 4-byte aligned
+    static size_t WriteLattice(void* storage, const SkCanvas::Lattice&);
+};
+
 #endif