1 files changed, 271 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/core/SkPictureRecord.h b/gfx/skia/skia/src/core/SkPictureRecord.h
new file mode 100644
index 0000000000..dd609b7b8f
--- /dev/null
+++ b/gfx/skia/skia/src/core/SkPictureRecord.h
@@ -0,0 +1,271 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPictureRecord_DEFINED
+#define SkPictureRecord_DEFINED
+
+#include "include/core/SkCanvas.h"
+#include "include/core/SkCanvasVirtualEnforcer.h"
+#include "include/core/SkFlattenable.h"
+#include "include/core/SkPicture.h"
+#include "include/core/SkTextBlob.h"
+#include "include/core/SkVertices.h"
+#include "include/private/base/SkTArray.h"
+#include "include/private/base/SkTDArray.h"
+#include "include/private/base/SkTo.h"
+#include "src/core/SkPictureData.h"
+#include "src/core/SkTHash.h"
+#include "src/core/SkWriter32.h"
+
+// These macros help with packing and unpacking a single byte value and
+// a 3 byte value into/out of a uint32_t
+#define MASK_24 0x00FFFFFF
+#define UNPACK_8_24(combined, small, large) \
+    small = (combined >> 24) & 0xFF;        \
+    large = combined & MASK_24
+#define PACK_8_24(small, large) ((small << 24) | large)
+
+
+class SkPictureRecord : public SkCanvasVirtualEnforcer<SkCanvas> {
+public:
+    SkPictureRecord(const SkISize& dimensions, uint32_t recordFlags);
+
+    SkPictureRecord(const SkIRect& dimensions, uint32_t recordFlags);
+
+    const skia_private::TArray<sk_sp<const SkPicture>>& getPictures() const {
+        return fPictures;
+    }
+
+    const skia_private::TArray<sk_sp<SkDrawable>>& getDrawables() const {
+        return fDrawables;
+    }
+
+    const skia_private::TArray<sk_sp<const SkTextBlob>>& getTextBlobs() const {
+        return fTextBlobs;
+    }
+
+#if defined(SK_GANESH)
+    const skia_private::TArray<sk_sp<const sktext::gpu::Slug>>& getSlugs() const {
+        return fSlugs;
+    }
+#endif
+
+    const skia_private::TArray<sk_sp<const SkVertices>>& getVertices() const {
+        return fVertices;
+    }
+
+    const skia_private::TArray<sk_sp<const SkImage>>& getImages() const {
+        return fImages;
+    }
+
+    sk_sp<SkData> opData() const {
+        this->validate(fWriter.bytesWritten(), 0);
+
+        if (fWriter.bytesWritten() == 0) {
+            return SkData::MakeEmpty();
+        }
+        return fWriter.snapshotAsData();
+    }
+
+    void setFlags(uint32_t recordFlags) {
+        fRecordFlags = recordFlags;
+    }
+
+    const SkWriter32& writeStream() const {
+        return fWriter;
+    }
+
+    void beginRecording();
+    void endRecording();
+
+protected:
+    void addNoOp();
+
+private:
+    void handleOptimization(int opt);
+    size_t recordRestoreOffsetPlaceholder();
+    void fillRestoreOffsetPlaceholdersForCurrentStackLevel(uint32_t restoreOffset);
+
+    SkTDArray<int32_t> fRestoreOffsetStack;
+
+    SkTDArray<uint32_t> fCullOffsetStack;
+
+    /*
+     * Write the 'drawType' operation and chunk size to the skp. 'size'
+     * can potentially be increased if the chunk size needs its own storage
+     * location (i.e., it overflows 24 bits).
+     * Returns the start offset of the chunk. This is the location at which
+     * the opcode & size are stored.
+     * TODO: since we are handing the size into here we could call reserve
+     * and then return a pointer to the memory storage. This could decrease
+     * allocation overhead but could lead to more wasted space (the tail
+     * end of blocks could go unused). Possibly add a second addDraw that
+     * operates in this manner.
+     */
+    size_t addDraw(DrawType drawType, size_t* size) {
+        size_t offset = fWriter.bytesWritten();
+
+        SkASSERT_RELEASE(this->predrawNotify());
+
+        SkASSERT(0 != *size);
+        SkASSERT(((uint8_t) drawType) == drawType);
+
+        if (0 != (*size & ~MASK_24) || *size == MASK_24) {
+            fWriter.writeInt(PACK_8_24(drawType, MASK_24));
+            *size += 1;
+            fWriter.writeInt(SkToU32(*size));
+        } else {
+            fWriter.writeInt(PACK_8_24(drawType, SkToU32(*size)));
+        }
+
+        return offset;
+    }
+
+    void addInt(int value) {
+        fWriter.writeInt(value);
+    }
+    void addScalar(SkScalar scalar) {
+        fWriter.writeScalar(scalar);
+    }
+
+    void addImage(const SkImage*);
+    void addMatrix(const SkMatrix& matrix);
+    void addPaint(const SkPaint& paint) { this->addPaintPtr(&paint); }
+    void addPaintPtr(const SkPaint* paint);
+    void addPatch(const SkPoint cubics[12]);
+    void addPath(const SkPath& path);
+    void addPicture(const SkPicture* picture);
+    void addDrawable(SkDrawable* picture);
+    void addPoint(const SkPoint& point);
+    void addPoints(const SkPoint pts[], int count);
+    void addRect(const SkRect& rect);
+    void addRectPtr(const SkRect* rect);
+    void addIRect(const SkIRect& rect);
+    void addIRectPtr(const SkIRect* rect);
+    void addRRect(const SkRRect&);
+    void addRegion(const SkRegion& region);
+    void addSampling(const SkSamplingOptions&);
+    void addText(const void* text, size_t byteLength);
+    void addTextBlob(const SkTextBlob* blob);
+    void addSlug(const sktext::gpu::Slug* slug);
+    void addVertices(const SkVertices*);
+
+    int find(const SkBitmap& bitmap);
+
+protected:
+    void validate(size_t initialOffset, size_t size) const {
+        SkASSERT(fWriter.bytesWritten() == initialOffset + size);
+    }
+
+    sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
+    bool onPeekPixels(SkPixmap*) override { return false; }
+
+    void onFlush() override;
+
+    void willSave() override;
+    SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
+    bool onDoSaveBehind(const SkRect*) override;
+    void willRestore() override;
+
+    void didConcat44(const SkM44&) override;
+    void didSetM44(const SkM44&) override;
+    void didScale(SkScalar, SkScalar) override;
+    void didTranslate(SkScalar, SkScalar) override;
+
+    void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
+
+    void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
+                                const SkPaint& paint) override;
+#if defined(SK_GANESH)
+    void onDrawSlug(const sktext::gpu::Slug* slug) override;
+#endif
+    void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
+                     const SkPoint texCoords[4], SkBlendMode, const SkPaint& paint) override;
+
+    void onDrawPaint(const SkPaint&) override;
+    void onDrawBehind(const SkPaint&) override;
+    void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
+    void onDrawRect(const SkRect&, const SkPaint&) override;
+    void onDrawRegion(const SkRegion&, const SkPaint&) override;
+    void onDrawOval(const SkRect&, const SkPaint&) override;
+    void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
+    void onDrawRRect(const SkRRect&, const SkPaint&) override;
+    void onDrawPath(const SkPath&, const SkPaint&) override;
+
+    void onDrawImage2(const SkImage*, SkScalar, SkScalar, const SkSamplingOptions&,
+                      const SkPaint*) override;
+    void onDrawImageRect2(const SkImage*, const SkRect&, const SkRect&, const SkSamplingOptions&,
+                          const SkPaint*, SrcRectConstraint) override;
+    void onDrawImageLattice2(const SkImage*, const Lattice&, const SkRect&, SkFilterMode,
+                             const SkPaint*) override;
+    void onDrawAtlas2(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[], int,
+                     SkBlendMode, const SkSamplingOptions&, const SkRect*, const SkPaint*) override;
+
+    void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override;
+    void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
+
+    void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
+    void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
+    void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
+    void onClipShader(sk_sp<SkShader>, SkClipOp) override;
+    void onClipRegion(const SkRegion&, SkClipOp) override;
+    void onResetClip() override;
+
+    void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
+
+    void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
+    void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
+
+    void onDrawEdgeAAQuad(const SkRect&, const SkPoint[4], QuadAAFlags, const SkColor4f&,
+                          SkBlendMode) override;
+    void onDrawEdgeAAImageSet2(const ImageSetEntry[], int count, const SkPoint[], const SkMatrix[],
+                               const SkSamplingOptions&,const SkPaint*, SrcRectConstraint) override;
+
+    int addPathToHeap(const SkPath& path);  // does not write to ops stream
+
+    // These entry points allow the writing of matrices, clips, saves &
+    // restores to be deferred (e.g., if the MC state is being collapsed and
+    // only written out as needed).
+    void recordConcat(const SkMatrix& matrix);
+    void recordTranslate(const SkMatrix& matrix);
+    void recordScale(const SkMatrix& matrix);
+    size_t recordClipRect(const SkRect& rect, SkClipOp op, bool doAA);
+    size_t recordClipRRect(const SkRRect& rrect, SkClipOp op, bool doAA);
+    size_t recordClipPath(int pathID, SkClipOp op, bool doAA);
+    size_t recordClipRegion(const SkRegion& region, SkClipOp op);
+    void recordSave();
+    void recordSaveLayer(const SaveLayerRec&);
+    void recordRestore(bool fillInSkips = true);
+
+private:
+    skia_private::TArray<SkPaint>  fPaints;
+
+    struct PathHash {
+        uint32_t operator()(const SkPath& p) { return p.getGenerationID(); }
+    };
+    SkTHashMap<SkPath, int, PathHash> fPaths;
+
+    SkWriter32 fWriter;
+
+    skia_private::TArray<sk_sp<const SkImage>>    fImages;
+    skia_private::TArray<sk_sp<const SkPicture>>  fPictures;
+    skia_private::TArray<sk_sp<SkDrawable>>       fDrawables;
+    skia_private::TArray<sk_sp<const SkTextBlob>> fTextBlobs;
+    skia_private::TArray<sk_sp<const SkVertices>> fVertices;
+#if defined(SK_GANESH)
+    skia_private::TArray<sk_sp<const sktext::gpu::Slug>> fSlugs;
+#endif
+
+    uint32_t fRecordFlags;
+    int      fInitialSaveCount;
+
+    friend class SkPictureData;   // for SkPictureData's SkPictureRecord-based constructor
+
+    using INHERITED = SkCanvasVirtualEnforcer<SkCanvas>;
+};
+
+#endif