diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/include/core/SkDraw.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/include/core/SkDraw.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,153 @@
+
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#ifndef SkDraw_DEFINED
+#define SkDraw_DEFINED
+
+#include "SkCanvas.h"
+#include "SkMask.h"
+#include "SkPaint.h"
+
+class SkBitmap;
+class SkBounder;
+class SkClipStack;
+class SkBaseDevice;
+class SkMatrix;
+class SkPath;
+class SkRegion;
+class SkRasterClip;
+struct SkDrawProcs;
+struct SkRect;
+class SkRRect;
+
+class SkDraw {
+public:
+    SkDraw();
+    SkDraw(const SkDraw& src);
+
+    void    drawPaint(const SkPaint&) const;
+    void    drawPoints(SkCanvas::PointMode, size_t count, const SkPoint[],
+                       const SkPaint&, bool forceUseDevice = false) const;
+    void    drawRect(const SkRect&, const SkPaint&) const;
+    void    drawRRect(const SkRRect&, const SkPaint&) const;
+    /**
+     *  To save on mallocs, we allow a flag that tells us that srcPath is
+     *  mutable, so that we don't have to make copies of it as we transform it.
+     *
+     *  If prePathMatrix is not null, it should logically be applied before any
+     *  stroking or other effects. If there are no effects on the paint that
+     *  affect the geometry/rasterization, then the pre matrix can just be
+     *  pre-concated with the current matrix.
+     */
+    void    drawPath(const SkPath& path, const SkPaint& paint,
+                     const SkMatrix* prePathMatrix, bool pathIsMutable) const {
+        this->drawPath(path, paint, prePathMatrix, pathIsMutable, false);
+    }
+
+    void drawPath(const SkPath& path, const SkPaint& paint) const {
+        this->drawPath(path, paint, NULL, false, false);
+    }
+
+    void    drawBitmap(const SkBitmap&, const SkMatrix&, const SkPaint&) const;
+    void    drawSprite(const SkBitmap&, int x, int y, const SkPaint&) const;
+    void    drawText(const char text[], size_t byteLength, SkScalar x,
+                     SkScalar y, const SkPaint& paint) const;
+    void    drawPosText(const char text[], size_t byteLength,
+                        const SkScalar pos[], SkScalar constY,
+                        int scalarsPerPosition, const SkPaint& paint) const;
+    void    drawTextOnPath(const char text[], size_t byteLength,
+                        const SkPath&, const SkMatrix*, const SkPaint&) const;
+    void    drawVertices(SkCanvas::VertexMode mode, int count,
+                         const SkPoint vertices[], const SkPoint textures[],
+                         const SkColor colors[], SkXfermode* xmode,
+                         const uint16_t indices[], int ptCount,
+                         const SkPaint& paint) const;
+
+    /**
+     *  Overwrite the target with the path's coverage (i.e. its mask).
+     *  Will overwrite the entire device, so it need not be zero'd first.
+     *
+     *  Only device A8 is supported right now.
+     */
+    void drawPathCoverage(const SkPath& src, const SkPaint& paint) const {
+        this->drawPath(src, paint, NULL, false, true);
+    }
+
+    /** Helper function that creates a mask from a path and an optional maskfilter.
+        Note however, that the resulting mask will not have been actually filtered,
+        that must be done afterwards (by calling filterMask). The maskfilter is provided
+        solely to assist in computing the mask's bounds (if the mode requests that).
+    */
+    static bool DrawToMask(const SkPath& devPath, const SkIRect* clipBounds,
+                           const SkMaskFilter*, const SkMatrix* filterMatrix,
+                           SkMask* mask, SkMask::CreateMode mode,
+                           SkPaint::Style style);
+
+    enum RectType {
+        kHair_RectType,
+        kFill_RectType,
+        kStroke_RectType,
+        kPath_RectType
+    };
+
+    /**
+     *  Based on the paint's style, strokeWidth, and the matrix, classify how
+     *  to draw the rect. If no special-case is available, returns
+     *  kPath_RectType.
+     *
+     *  Iff RectType == kStroke_RectType, then strokeSize is set to the device
+     *  width and height of the stroke.
+     */
+    static RectType ComputeRectType(const SkPaint&, const SkMatrix&,
+                                    SkPoint* strokeSize);
+
+    static bool ShouldDrawTextAsPaths(const SkPaint&, const SkMatrix&);
+    void        drawText_asPaths(const char text[], size_t byteLength,
+                                 SkScalar x, SkScalar y, const SkPaint&) const;
+    void        drawPosText_asPaths(const char text[], size_t byteLength,
+                                    const SkScalar pos[], SkScalar constY,
+                                    int scalarsPerPosition, const SkPaint&) const;
+
+private:
+    void    drawDevMask(const SkMask& mask, const SkPaint&) const;
+    void    drawBitmapAsMask(const SkBitmap&, const SkPaint&) const;
+
+    void    drawPath(const SkPath&, const SkPaint&, const SkMatrix* preMatrix,
+                     bool pathIsMutable, bool drawCoverage) const;
+
+    /**
+     *  Return the current clip bounds, in local coordinates, with slop to account
+     *  for antialiasing or hairlines (i.e. device-bounds outset by 1, and then
+     *  run through the inverse of the matrix).
+     *
+     *  If the matrix cannot be inverted, or the current clip is empty, return
+     *  false and ignore bounds parameter.
+     */
+    bool SK_WARN_UNUSED_RESULT
+    computeConservativeLocalClipBounds(SkRect* bounds) const;
+
+public:
+    const SkBitmap* fBitmap;        // required
+    const SkMatrix* fMatrix;        // required
+    const SkRegion* fClip;          // DEPRECATED
+    const SkRasterClip* fRC;        // required
+
+    const SkClipStack* fClipStack;  // optional
+    SkBaseDevice*   fDevice;        // optional
+    SkBounder*      fBounder;       // optional
+    SkDrawProcs*    fProcs;         // optional
+
+#ifdef SK_DEBUG
+    void validate() const;
+#else
+    void validate() const {}
+#endif
+};
+
+#endif