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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <SkCanvas.h>
#include <SkCanvasVirtualEnforcer.h>
#include <SkDrawable.h>
#include <SkGainmapInfo.h>
#include <SkNoDrawCanvas.h>
#include <SkPaint.h>
#include <SkPath.h>
#include <SkRect.h>
#include <SkRuntimeEffect.h>
#include <log/log.h>
#include <cstdlib>
#include <utility>
#include <vector>
#include "CanvasTransform.h"
#include "Gainmap.h"
#include "hwui/Bitmap.h"
#include "pipeline/skia/AnimatedDrawables.h"
#include "utils/AutoMalloc.h"
#include "utils/Macros.h"
#include "utils/TypeLogic.h"
enum class SkBlendMode;
class SkRRect;
class Mesh;
namespace android {
namespace uirenderer {
namespace skiapipeline {
class FunctorDrawable;
}
namespace VectorDrawable {
class Tree;
}
typedef uirenderer::VectorDrawable::Tree VectorDrawableRoot;
enum class DisplayListOpType : uint8_t {
#define X(T) T,
#include "DisplayListOps.in"
#undef X
};
struct DisplayListOp {
const uint8_t type : 8;
const uint32_t skip : 24;
};
static_assert(sizeof(DisplayListOp) == 4);
class DrawMeshPayload {
public:
explicit DrawMeshPayload(const SkMesh* mesh) : mesh(mesh) {}
explicit DrawMeshPayload(const Mesh* meshWrapper) : meshWrapper(meshWrapper) {}
[[nodiscard]] const SkMesh& getSkMesh() const;
private:
const SkMesh* mesh = nullptr;
const Mesh* meshWrapper = nullptr;
};
struct DrawImagePayload {
explicit DrawImagePayload(Bitmap& bitmap)
: image(bitmap.makeImage()), palette(bitmap.palette()) {
if (bitmap.hasGainmap()) {
auto gainmap = bitmap.gainmap();
gainmapInfo = gainmap->info;
gainmapImage = gainmap->bitmap->makeImage();
}
}
explicit DrawImagePayload(const SkImage* image)
: image(sk_ref_sp(image)), palette(BitmapPalette::Unknown) {}
DrawImagePayload(const DrawImagePayload&) = default;
DrawImagePayload(DrawImagePayload&&) = default;
DrawImagePayload& operator=(const DrawImagePayload&) = default;
DrawImagePayload& operator=(DrawImagePayload&&) = default;
~DrawImagePayload() = default;
sk_sp<SkImage> image;
BitmapPalette palette;
sk_sp<SkImage> gainmapImage;
SkGainmapInfo gainmapInfo;
};
class RecordingCanvas;
class DisplayListData final {
public:
DisplayListData() : mHasText(false) {}
~DisplayListData();
void draw(SkCanvas* canvas) const;
void reset();
bool empty() const { return fUsed == 0; }
void applyColorTransform(ColorTransform transform);
bool hasText() const { return mHasText; }
size_t usedSize() const { return fUsed; }
size_t allocatedSize() const { return fReserved; }
private:
friend class RecordingCanvas;
void save();
void saveLayer(const SkRect*, const SkPaint*, const SkImageFilter*, SkCanvas::SaveLayerFlags);
void saveBehind(const SkRect*);
void restore();
void concat(const SkM44&);
void setMatrix(const SkM44&);
void scale(SkScalar, SkScalar);
void translate(SkScalar, SkScalar);
void translateZ(SkScalar);
void clipPath(const SkPath&, SkClipOp, bool aa);
void clipRect(const SkRect&, SkClipOp, bool aa);
void clipRRect(const SkRRect&, SkClipOp, bool aa);
void clipRegion(const SkRegion&, SkClipOp);
void resetClip();
void drawPaint(const SkPaint&);
void drawBehind(const SkPaint&);
void drawPath(const SkPath&, const SkPaint&);
void drawRect(const SkRect&, const SkPaint&);
void drawRegion(const SkRegion&, const SkPaint&);
void drawOval(const SkRect&, const SkPaint&);
void drawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&);
void drawRRect(const SkRRect&, const SkPaint&);
void drawDRRect(const SkRRect&, const SkRRect&, const SkPaint&);
void drawMesh(const SkMesh&, const sk_sp<SkBlender>&, const SkPaint&);
void drawMesh(const Mesh&, const sk_sp<SkBlender>&, const SkPaint&);
void drawAnnotation(const SkRect&, const char*, SkData*);
void drawDrawable(SkDrawable*, const SkMatrix*);
void drawPicture(const SkPicture*, const SkMatrix*, const SkPaint*);
void drawTextBlob(const SkTextBlob*, SkScalar, SkScalar, const SkPaint&);
void drawImage(DrawImagePayload&&, SkScalar, SkScalar, const SkSamplingOptions&,
const SkPaint*);
void drawImageRect(DrawImagePayload&&, const SkRect*, const SkRect&, const SkSamplingOptions&,
const SkPaint*, SkCanvas::SrcRectConstraint);
void drawImageLattice(DrawImagePayload&&, const SkCanvas::Lattice&, const SkRect&, SkFilterMode,
const SkPaint*);
void drawPatch(const SkPoint[12], const SkColor[4], const SkPoint[4], SkBlendMode,
const SkPaint&);
void drawPoints(SkCanvas::PointMode, size_t, const SkPoint[], const SkPaint&);
void drawVertices(const SkVertices*, SkBlendMode, const SkPaint&);
void drawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[], int,
SkBlendMode, const SkSamplingOptions&, const SkRect*, const SkPaint*);
void drawRippleDrawable(const skiapipeline::RippleDrawableParams& params);
void drawShadowRec(const SkPath&, const SkDrawShadowRec&);
void drawVectorDrawable(VectorDrawableRoot* tree);
void drawWebView(skiapipeline::FunctorDrawable*);
template <typename T, typename... Args>
void* push(size_t, Args&&...);
template <typename Fn, typename... Args>
void map(const Fn[], Args...) const;
AutoTMalloc<uint8_t> fBytes;
size_t fUsed = 0;
size_t fReserved = 0;
bool mHasText : 1;
};
class RecordingCanvas final : public SkCanvasVirtualEnforcer<SkNoDrawCanvas> {
public:
RecordingCanvas();
void reset(DisplayListData*, const SkIRect& bounds);
sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
void willRestore() override;
bool onDoSaveBehind(const SkRect*) override;
void didConcat44(const SkM44&) override;
void didSetM44(const SkM44&) override;
void didScale(SkScalar, SkScalar) override;
void didTranslate(SkScalar, SkScalar) override;
void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
void onClipRegion(const SkRegion&, SkClipOp) override;
void onResetClip() override;
void onDrawPaint(const SkPaint&) override;
void onDrawBehind(const SkPaint&) override;
void onDrawPath(const SkPath&, 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 onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
void onDrawTextBlob(const SkTextBlob*, SkScalar, SkScalar, const SkPaint&) override;
void drawRippleDrawable(const skiapipeline::RippleDrawableParams& params);
void drawImage(DrawImagePayload&&, SkScalar, SkScalar, const SkSamplingOptions&,
const SkPaint*);
void drawImageRect(DrawImagePayload&&, const SkRect&, const SkRect&, const SkSamplingOptions&,
const SkPaint*, SrcRectConstraint);
void drawImageLattice(DrawImagePayload&&, const Lattice& lattice, const SkRect&, SkFilterMode,
const SkPaint*);
void onDrawImage2(const SkImage*, SkScalar, SkScalar, const SkSamplingOptions&,
const SkPaint*) override;
void onDrawImageLattice2(const SkImage*, const Lattice&, const SkRect&, SkFilterMode,
const SkPaint*) override;
void onDrawImageRect2(const SkImage*, const SkRect&, const SkRect&, const SkSamplingOptions&,
const SkPaint*, SrcRectConstraint) override;
void onDrawPatch(const SkPoint[12], const SkColor[4], const SkPoint[4], SkBlendMode,
const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
void onDrawMesh(const SkMesh&, sk_sp<SkBlender>, 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 drawMesh(const Mesh& mesh, sk_sp<SkBlender> blender, const SkPaint& paint);
void drawVectorDrawable(VectorDrawableRoot* tree);
void drawWebView(skiapipeline::FunctorDrawable*);
/**
* If "isClipMayBeComplex" returns false, it is guaranteed the current clip is a rectangle.
* If the return value is true, then clip may or may not be complex (there is no guarantee).
*/
inline bool isClipMayBeComplex() { return mClipMayBeComplex; }
private:
typedef SkCanvasVirtualEnforcer<SkNoDrawCanvas> INHERITED;
inline void setClipMayBeComplex() {
if (!mClipMayBeComplex) {
mComplexSaveCount = mSaveCount;
mClipMayBeComplex = true;
}
}
DisplayListData* fDL;
/**
* mClipMayBeComplex tracks if the current clip is a rectangle. This flag is used to promote
* FunctorDrawable to a layer, if it is clipped by a non-rect.
*/
bool mClipMayBeComplex = false;
/**
* mSaveCount is the current level of our save tree.
*/
int mSaveCount = 0;
/**
* mComplexSaveCount is the first save level, which has a complex clip. Every level below
* mComplexSaveCount is assumed to have a complex clip and every level above mComplexSaveCount
* is guaranteed to not be complex.
*/
int mComplexSaveCount = 0;
};
} // namespace uirenderer
} // namespace android