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Commit 55fc541c authored by Nader Jawad's avatar Nader Jawad Committed by Android (Google) Code Review
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Merge "Add support for CanvasOps to draw multiple lines or points in a single...

Merge "Add support for CanvasOps to draw multiple lines or points in a single call --DrawPoints --DrawLines"
parents 1ce2a35d 4285c8a3
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+2 −0
Original line number Diff line number Diff line
@@ -47,8 +47,10 @@ enum class CanvasOpType : int8_t {
    DrawArc,
    DrawPaint,
    DrawPoint,
    DrawPoints,
    DrawPath,
    DrawLine,
    DrawLines,
    DrawVertices,
    DrawImage,
    DrawImageRect,
+33 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@
#include <hwui/Bitmap.h>
#include <log/log.h>
#include "CanvasProperty.h"
#include "Points.h"

#include "CanvasOpTypes.h"
#include "Layer.h"
@@ -165,6 +166,22 @@ struct CanvasOp<CanvasOpType::DrawPoint> {
    ASSERT_DRAWABLE()
};

template <>
struct CanvasOp<CanvasOpType::DrawPoints> {
    size_t count;
    SkPaint paint;
    sk_sp<Points> points;
    void draw(SkCanvas* canvas) const {
        canvas->drawPoints(
            SkCanvas::kPoints_PointMode,
            count,
            points->data(),
            paint
        );
    }
    ASSERT_DRAWABLE()
};

template <>
struct CanvasOp<CanvasOpType::DrawRect> {
    SkRect rect;
@@ -263,6 +280,22 @@ struct CanvasOp<CanvasOpType::DrawLine> {
    ASSERT_DRAWABLE()
};

template<>
struct CanvasOp<CanvasOpType::DrawLines> {
    size_t count;
    SkPaint paint;
    sk_sp<Points> points;
    void draw(SkCanvas* canvas) const {
        canvas->drawPoints(
            SkCanvas::kLines_PointMode,
            count,
            points->data(),
            paint
        );
    }
    ASSERT_DRAWABLE()
};

template<>
struct CanvasOp<CanvasOpType::DrawVertices> {
    sk_sp<SkVertices> vertices;
+48 −0
Original line number Diff line number Diff line
/*
 * Copyright (C) 2020 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.
 */
#include <ui/FatVector.h>
#include "SkPoint.h"
#include "SkRefCnt.h"

/**
 * Collection of points that are ref counted and to be used with
 * various drawing calls that consume SkPoint as inputs like
 * drawLines/drawPoints
 */
class Points: public SkNVRefCnt<SkPoint> {
public:
  Points(int size){
      skPoints.resize(size);
  }

  Points(std::initializer_list<SkPoint> init): skPoints(init) { }

  SkPoint& operator[](int index) {
      return skPoints[index];
  }

  const SkPoint* data() const {
      return skPoints.data();
  }

  size_t size() const {
      return skPoints.size();
  }
private:
  // Initialize the size to contain 2 SkPoints on the stack for optimized
  // drawLine calls that require 2 SkPoints for start/end points of the line
  android::FatVector<SkPoint, 2> skPoints;
};
+49 −0
Original line number Diff line number Diff line
@@ -245,6 +245,31 @@ TEST(CanvasOp, simpleDrawPoint) {
    EXPECT_EQ(1, canvas.sumTotalDrawCalls());
}

TEST(CanvasOp, simpleDrawPoints) {
    CanvasOpBuffer buffer;
    EXPECT_EQ(buffer.size(), 0);
    size_t numPts = 3;
    auto pts = sk_ref_sp(
          new Points({
              {32, 16},
              {48, 48},
              {16, 32}
          })
    );

    buffer.push(CanvasOp<Op::DrawPoints> {
        .count = numPts,
        .paint = SkPaint{},
        .points = pts
    });

    CallCountingCanvas canvas;
    EXPECT_EQ(0, canvas.sumTotalDrawCalls());
    rasterizeCanvasBuffer(buffer, &canvas);
    EXPECT_EQ(1, canvas.drawPoints);
    EXPECT_EQ(1, canvas.sumTotalDrawCalls());
}

TEST(CanvasOp, simpleDrawLine) {
    CanvasOpBuffer buffer;
    EXPECT_EQ(buffer.size(), 0);
@@ -263,6 +288,30 @@ TEST(CanvasOp, simpleDrawLine) {
    EXPECT_EQ(1, canvas.sumTotalDrawCalls());
}

TEST(CanvasOp, simpleDrawLines) {
    CanvasOpBuffer buffer;
    EXPECT_EQ(buffer.size(), 0);
    size_t numPts = 3;
    auto pts = sk_ref_sp(
        new Points({
               {32, 16},
               {48, 48},
               {16, 32}
          })
        );
    buffer.push(CanvasOp<Op::DrawLines> {
        .count = numPts,
        .paint = SkPaint{},
        .points = pts
    });

    CallCountingCanvas canvas;
    EXPECT_EQ(0, canvas.sumTotalDrawCalls());
    rasterizeCanvasBuffer(buffer, &canvas);
    EXPECT_EQ(1, canvas.drawPoints);
    EXPECT_EQ(1, canvas.sumTotalDrawCalls());
}

TEST(CanvasOp, simpleDrawRect) {
    CanvasOpBuffer buffer;
    EXPECT_EQ(buffer.size(), 0);