3aadd60521
Fixed build breakage This reverts commit d35dcb13115ca1dd8c07e397f43a186cd7fd1a01. Change-Id: Id3a103fbaac15a05f558bce2161ce17b6e8d2ea3
367 lines
15 KiB
C++
367 lines
15 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HWUI_DISPLAY_LIST_RENDERER_H
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#define ANDROID_HWUI_DISPLAY_LIST_RENDERER_H
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#include <SkDrawFilter.h>
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#include <SkMatrix.h>
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#include <SkPaint.h>
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#include <SkPath.h>
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#include <SkRegion.h>
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#include <SkTLazy.h>
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#include <cutils/compiler.h>
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#include "Canvas.h"
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#include "CanvasState.h"
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#include "DisplayList.h"
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#include "SkiaCanvasProxy.h"
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#include "RenderNode.h"
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#include "ResourceCache.h"
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Defines
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///////////////////////////////////////////////////////////////////////////////
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// Debug
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#if DEBUG_DISPLAY_LIST
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#define DISPLAY_LIST_LOGD(...) ALOGD(__VA_ARGS__)
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#else
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#define DISPLAY_LIST_LOGD(...)
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#endif
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///////////////////////////////////////////////////////////////////////////////
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// Display list
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///////////////////////////////////////////////////////////////////////////////
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class DeferredDisplayList;
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class DeferredLayerUpdater;
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class DisplayListOp;
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class DrawOp;
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class RenderNode;
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class StateOp;
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/**
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* Records drawing commands in a display list for later playback into an OpenGLRenderer.
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*/
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class ANDROID_API DisplayListCanvas: public Canvas, public CanvasStateClient {
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public:
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DisplayListCanvas(int width, int height);
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virtual ~DisplayListCanvas();
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void reset(int width, int height);
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DisplayListData* finishRecording();
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// ----------------------------------------------------------------------------
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// HWUI Canvas state operations
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// ----------------------------------------------------------------------------
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void insertReorderBarrier(bool enableReorder);
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// ----------------------------------------------------------------------------
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// HWUI Canvas draw operations
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// ----------------------------------------------------------------------------
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// Shapes
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void drawRoundRect(CanvasPropertyPrimitive* left, CanvasPropertyPrimitive* top,
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CanvasPropertyPrimitive* right, CanvasPropertyPrimitive* bottom,
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CanvasPropertyPrimitive* rx, CanvasPropertyPrimitive* ry,
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CanvasPropertyPaint* paint);
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void drawCircle(CanvasPropertyPrimitive* x, CanvasPropertyPrimitive* y,
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CanvasPropertyPrimitive* radius, CanvasPropertyPaint* paint);
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// ----------------------------------------------------------------------------
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// HWUI Canvas draw operations - special
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// ----------------------------------------------------------------------------
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void drawLayer(DeferredLayerUpdater* layerHandle);
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void drawRenderNode(RenderNode* renderNode);
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// TODO: rename for consistency
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void callDrawGLFunction(Functor* functor);
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// ----------------------------------------------------------------------------
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// CanvasStateClient interface
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// ----------------------------------------------------------------------------
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virtual void onViewportInitialized() override { }
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virtual void onSnapshotRestored(const Snapshot& removed, const Snapshot& restored) override { }
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virtual GLuint getTargetFbo() const override { return -1; }
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// ----------------------------------------------------------------------------
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// android/graphics/Canvas interface
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// ----------------------------------------------------------------------------
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virtual SkCanvas* asSkCanvas() override;
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virtual void setBitmap(const SkBitmap& bitmap) override {
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LOG_ALWAYS_FATAL("DisplayListCanvas is not backed by a bitmap.");
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}
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virtual bool isOpaque() override { return false; }
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virtual int width() override { return mState.getWidth(); }
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virtual int height() override { return mState.getHeight(); }
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virtual void setHighContrastText(bool highContrastText) override {
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mHighContrastText = highContrastText;
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}
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virtual bool isHighContrastText() override { return mHighContrastText; }
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// ----------------------------------------------------------------------------
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// android/graphics/Canvas state operations
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// ----------------------------------------------------------------------------
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// Save (layer)
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virtual int getSaveCount() const override { return mState.getSaveCount(); }
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virtual int save(SkCanvas::SaveFlags flags) override;
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virtual void restore() override;
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virtual void restoreToCount(int saveCount) override;
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virtual int saveLayer(float left, float top, float right, float bottom, const SkPaint* paint,
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SkCanvas::SaveFlags flags) override;
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virtual int saveLayerAlpha(float left, float top, float right, float bottom,
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int alpha, SkCanvas::SaveFlags flags) override {
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SkPaint paint;
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paint.setAlpha(alpha);
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return saveLayer(left, top, right, bottom, &paint, flags);
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}
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// Matrix
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virtual void getMatrix(SkMatrix* outMatrix) const override { mState.getMatrix(outMatrix); }
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virtual void setMatrix(const SkMatrix& matrix) override;
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virtual void concat(const SkMatrix& matrix) override;
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virtual void rotate(float degrees) override;
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virtual void scale(float sx, float sy) override;
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virtual void skew(float sx, float sy) override;
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virtual void translate(float dx, float dy) override;
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// Clip
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virtual bool getClipBounds(SkRect* outRect) const override;
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virtual bool quickRejectRect(float left, float top, float right, float bottom) const override;
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virtual bool quickRejectPath(const SkPath& path) const override;
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virtual bool clipRect(float left, float top, float right, float bottom, SkRegion::Op op) override;
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virtual bool clipPath(const SkPath* path, SkRegion::Op op) override;
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virtual bool clipRegion(const SkRegion* region, SkRegion::Op op) override;
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// Misc
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virtual SkDrawFilter* getDrawFilter() override { return mDrawFilter.get(); }
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virtual void setDrawFilter(SkDrawFilter* filter) override;
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// ----------------------------------------------------------------------------
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// android/graphics/Canvas draw operations
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// ----------------------------------------------------------------------------
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virtual void drawColor(int color, SkXfermode::Mode mode) override;
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virtual void drawPaint(const SkPaint& paint) override;
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// Geometry
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virtual void drawPoint(float x, float y, const SkPaint& paint) override {
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float points[2] = { x, y };
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drawPoints(points, 2, paint);
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}
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virtual void drawPoints(const float* points, int count, const SkPaint& paint) override;
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virtual void drawLine(float startX, float startY, float stopX, float stopY,
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const SkPaint& paint) override {
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float points[4] = { startX, startY, stopX, stopY };
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drawLines(points, 4, paint);
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}
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virtual void drawLines(const float* points, int count, const SkPaint& paint) override;
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virtual void drawRect(float left, float top, float right, float bottom, const SkPaint& paint) override;
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virtual void drawRegion(const SkRegion& region, const SkPaint& paint) override;
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virtual void drawRoundRect(float left, float top, float right, float bottom,
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float rx, float ry, const SkPaint& paint) override;
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virtual void drawCircle(float x, float y, float radius, const SkPaint& paint) override;
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virtual void drawOval(float left, float top, float right, float bottom, const SkPaint& paint) override;
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virtual void drawArc(float left, float top, float right, float bottom,
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float startAngle, float sweepAngle, bool useCenter, const SkPaint& paint) override;
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virtual void drawPath(const SkPath& path, const SkPaint& paint) override;
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virtual void drawVertices(SkCanvas::VertexMode vertexMode, int vertexCount,
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const float* verts, const float* tex, const int* colors,
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const uint16_t* indices, int indexCount, const SkPaint& paint) override
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{ /* DisplayListCanvas does not support drawVertices(); ignore */ }
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// Bitmap-based
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virtual void drawBitmap(const SkBitmap& bitmap, float left, float top, const SkPaint* paint) override;
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virtual void drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix,
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const SkPaint* paint) override;
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virtual void drawBitmap(const SkBitmap& bitmap, float srcLeft, float srcTop,
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float srcRight, float srcBottom, float dstLeft, float dstTop,
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float dstRight, float dstBottom, const SkPaint* paint) override;
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virtual void drawBitmapMesh(const SkBitmap& bitmap, int meshWidth, int meshHeight,
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const float* vertices, const int* colors, const SkPaint* paint) override;
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virtual void drawNinePatch(const SkBitmap& bitmap, const android::Res_png_9patch& chunk,
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float dstLeft, float dstTop, float dstRight, float dstBottom,
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const SkPaint* paint) override;
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// Text
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virtual void drawText(const uint16_t* glyphs, const float* positions, int count,
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const SkPaint& paint, float x, float y, float boundsLeft, float boundsTop,
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float boundsRight, float boundsBottom, float totalAdvance) override;
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virtual void drawPosText(const uint16_t* text, const float* positions, int count,
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int posCount, const SkPaint& paint) override;
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virtual void drawTextOnPath(const uint16_t* glyphs, int count, const SkPath& path,
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float hOffset, float vOffset, const SkPaint& paint) override;
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virtual bool drawTextAbsolutePos() const override { return false; }
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private:
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CanvasState mState;
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std::unique_ptr<SkiaCanvasProxy> mSkiaCanvasProxy;
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enum DeferredBarrierType {
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kBarrier_None,
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kBarrier_InOrder,
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kBarrier_OutOfOrder,
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};
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void drawBitmap(const SkBitmap* bitmap, const SkPaint* paint);
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void drawRects(const float* rects, int count, const SkPaint* paint);
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void flushRestoreToCount();
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void flushTranslate();
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void flushReorderBarrier();
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LinearAllocator& alloc() { return mDisplayListData->allocator; }
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// Each method returns final index of op
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size_t addOpAndUpdateChunk(DisplayListOp* op);
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// flushes any deferred operations, and appends the op
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size_t flushAndAddOp(DisplayListOp* op);
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size_t addStateOp(StateOp* op);
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size_t addDrawOp(DrawOp* op);
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size_t addRenderNodeOp(DrawRenderNodeOp* op);
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void refBitmapsInShader(const SkShader* shader);
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template<class T>
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inline const T* refBuffer(const T* srcBuffer, int32_t count) {
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if (!srcBuffer) return nullptr;
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T* dstBuffer = (T*) mDisplayListData->allocator.alloc(count * sizeof(T));
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memcpy(dstBuffer, srcBuffer, count * sizeof(T));
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return dstBuffer;
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}
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inline char* refText(const char* text, size_t byteLength) {
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return (char*) refBuffer<uint8_t>((uint8_t*)text, byteLength);
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}
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inline const SkPath* refPath(const SkPath* path) {
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if (!path) return nullptr;
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// The points/verbs within the path are refcounted so this copy operation
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// is inexpensive and maintains the generationID of the original path.
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const SkPath* cachedPath = new SkPath(*path);
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mDisplayListData->pathResources.push_back(cachedPath);
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return cachedPath;
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}
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inline const SkPaint* refPaint(const SkPaint* paint) {
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if (!paint) return nullptr;
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// If there is a draw filter apply it here and store the modified paint
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// so that we don't need to modify the paint every time we access it.
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SkTLazy<SkPaint> filteredPaint;
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if (mDrawFilter.get()) {
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filteredPaint.set(*paint);
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mDrawFilter->filter(filteredPaint.get(), SkDrawFilter::kPaint_Type);
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paint = filteredPaint.get();
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}
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// compute the hash key for the paint and check the cache.
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const uint32_t key = paint->getHash();
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const SkPaint* cachedPaint = mPaintMap.valueFor(key);
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// In the unlikely event that 2 unique paints have the same hash we do a
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// object equality check to ensure we don't erroneously dedup them.
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if (cachedPaint == nullptr || *cachedPaint != *paint) {
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cachedPaint = new SkPaint(*paint);
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std::unique_ptr<const SkPaint> copy(cachedPaint);
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mDisplayListData->paints.push_back(std::move(copy));
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// replaceValueFor() performs an add if the entry doesn't exist
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mPaintMap.replaceValueFor(key, cachedPaint);
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refBitmapsInShader(cachedPaint->getShader());
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}
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return cachedPaint;
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}
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inline const SkRegion* refRegion(const SkRegion* region) {
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if (!region) {
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return region;
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}
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const SkRegion* cachedRegion = mRegionMap.valueFor(region);
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// TODO: Add generation ID to SkRegion
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if (cachedRegion == nullptr) {
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std::unique_ptr<const SkRegion> copy(new SkRegion(*region));
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cachedRegion = copy.get();
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mDisplayListData->regions.push_back(std::move(copy));
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// replaceValueFor() performs an add if the entry doesn't exist
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mRegionMap.replaceValueFor(region, cachedRegion);
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}
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return cachedRegion;
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}
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inline const SkBitmap* refBitmap(const SkBitmap& bitmap) {
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// Note that this assumes the bitmap is immutable. There are cases this won't handle
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// correctly, such as creating the bitmap from scratch, drawing with it, changing its
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// contents, and drawing again. The only fix would be to always copy it the first time,
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// which doesn't seem worth the extra cycles for this unlikely case.
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SkBitmap* localBitmap = new (alloc()) SkBitmap(bitmap);
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alloc().autoDestroy(localBitmap);
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mDisplayListData->bitmapResources.push_back(localBitmap);
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return localBitmap;
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}
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inline const Res_png_9patch* refPatch(const Res_png_9patch* patch) {
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mDisplayListData->patchResources.push_back(patch);
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mResourceCache.incrementRefcount(patch);
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return patch;
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}
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DefaultKeyedVector<uint32_t, const SkPaint*> mPaintMap;
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DefaultKeyedVector<const SkPath*, const SkPath*> mPathMap;
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DefaultKeyedVector<const SkRegion*, const SkRegion*> mRegionMap;
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ResourceCache& mResourceCache;
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DisplayListData* mDisplayListData;
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float mTranslateX;
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float mTranslateY;
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bool mHasDeferredTranslate;
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DeferredBarrierType mDeferredBarrierType;
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bool mHighContrastText;
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int mRestoreSaveCount;
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SkAutoTUnref<SkDrawFilter> mDrawFilter;
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friend class RenderNode;
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}; // class DisplayListCanvas
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_DISPLAY_LIST_RENDERER_H
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