skia2/tests/PictureBBHTest.cpp
Mike Klein 508fd32091 make SkBBH a public interface
I don't necessarily like this long term, but in the short term Flutter
would like to record pictures using their own type separate from
SkRTree.  This makes SkBBoxHierarchy public, and converts it to use
other public types (SkTDArray -> vector).

Change-Id: I29c5ef9da7d641d8f4ba18522b168ddf7cefe84f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270387
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2020-02-12 16:31:05 +00:00

125 lines
3.9 KiB
C++

/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPicture.h"
#include "include/core/SkPictureRecorder.h"
#include "src/core/SkRectPriv.h"
#include "tests/Test.h"
class PictureBBHTestBase {
public:
PictureBBHTestBase(int playbackWidth, int playbackHeight,
int recordWidth, int recordHeight) {
fResultBitmap.allocN32Pixels(playbackWidth, playbackHeight);
fPictureWidth = recordWidth;
fPictureHeight = recordHeight;
}
virtual ~PictureBBHTestBase() { }
virtual void doTest(SkCanvas& playbackCanvas, SkCanvas& recordingCanvas) = 0;
void run(skiatest::Reporter* reporter) {
// No BBH
this->run(nullptr, reporter);
// With an R-Tree
SkRTreeFactory RTreeFactory;
this->run(&RTreeFactory, reporter);
}
private:
void run(SkBBHFactory* factory, skiatest::Reporter* reporter) {
SkCanvas playbackCanvas(fResultBitmap);
playbackCanvas.clear(SK_ColorGREEN);
SkPictureRecorder recorder;
SkCanvas* recordCanvas = recorder.beginRecording(SkIntToScalar(fPictureWidth),
SkIntToScalar(fPictureHeight),
factory);
this->doTest(playbackCanvas, *recordCanvas);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
playbackCanvas.drawPicture(picture);
REPORTER_ASSERT(reporter, SK_ColorGREEN == fResultBitmap.getColor(0, 0));
}
SkBitmap fResultBitmap;
int fPictureWidth, fPictureHeight;
};
// Test to verify the playback of an empty picture
//
class DrawEmptyPictureBBHTest : public PictureBBHTestBase {
public:
DrawEmptyPictureBBHTest()
: PictureBBHTestBase(2, 2, 1, 1) {}
~DrawEmptyPictureBBHTest() override {}
void doTest(SkCanvas&, SkCanvas&) override {}
};
// Test to verify the playback of a picture into a canvas that has
// an empty clip.
//
class EmptyClipPictureBBHTest : public PictureBBHTestBase {
public:
EmptyClipPictureBBHTest()
: PictureBBHTestBase(2, 2, 3, 3) {}
void doTest(SkCanvas& playbackCanvas, SkCanvas& recordingCanvas) override {
// intersect with out of bounds rect -> empty clip.
playbackCanvas.clipRect(SkRect::MakeXYWH(10, 10, 1, 1));
SkPaint paint;
recordingCanvas.drawRect(SkRect::MakeWH(3, 3), paint);
}
~EmptyClipPictureBBHTest() override {}
};
DEF_TEST(PictureBBH, reporter) {
DrawEmptyPictureBBHTest emptyPictureTest;
emptyPictureTest.run(reporter);
EmptyClipPictureBBHTest emptyClipPictureTest;
emptyClipPictureTest.run(reporter);
}
DEF_TEST(PictureNegativeSpace, r) {
SkRTreeFactory factory;
SkPictureRecorder recorder;
SkRect cull = {-200,-200,+200,+200};
{
sk_sp<SkBBoxHierarchy> bbh = factory();
auto canvas = recorder.beginRecording(cull, bbh);
canvas->save();
canvas->clipRect(cull);
canvas->drawRect({-20,-20,-10,-10}, SkPaint{});
canvas->drawRect({-20,-20,-10,-10}, SkPaint{});
canvas->restore();
auto pic = recorder.finishRecordingAsPicture();
REPORTER_ASSERT(r, pic->approximateOpCount() == 5);
REPORTER_ASSERT(r, pic->cullRect() == (SkRect{-20,-20,-10,-10}));
}
{
auto canvas = recorder.beginRecording(cull, &factory);
canvas->clipRect(cull);
canvas->drawRect({-20,-20,-10,-10}, SkPaint{});
canvas->drawRect({-20,-20,-10,-10}, SkPaint{});
auto pic = recorder.finishRecordingAsPicture();
REPORTER_ASSERT(r, pic->approximateOpCount() == 3);
REPORTER_ASSERT(r, pic->cullRect() == (SkRect{-20,-20,-10,-10}));
}
}