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/*
* 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 "SkCanvas.h"
#include "SkBBoxHierarchy.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "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(NULL, reporter);
// With a Tile Grid
SkTileGridFactory::TileGridInfo gridInfo;
gridInfo.fMargin.setEmpty();
gridInfo.fOffset.setZero();
gridInfo.fTileInterval.set(1, 1);
SkTileGridFactory gridFactory(gridInfo);
this->run(&gridFactory, 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);
SkAutoTUnref<SkPicture> picture(recorder.endRecording());
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) { }
virtual ~DrawEmptyPictureBBHTest() { }
virtual void doTest(SkCanvas&, SkCanvas&) SK_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) { }
virtual void doTest(SkCanvas& playbackCanvas, SkCanvas& recordingCanvas) SK_OVERRIDE {
// intersect with out of bounds rect -> empty clip.
playbackCanvas.clipRect(SkRect::MakeXYWH(SkIntToScalar(10), SkIntToScalar(10),
SkIntToScalar(1), SkIntToScalar(1)), SkRegion::kIntersect_Op);
SkPaint paint;
recordingCanvas.drawRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(3), SkIntToScalar(3)), paint);
}
virtual ~EmptyClipPictureBBHTest() { }
};
DEF_TEST(PictureBBH, reporter) {
DrawEmptyPictureBBHTest emptyPictureTest;
emptyPictureTest.run(reporter);
EmptyClipPictureBBHTest emptyClipPictureTest;
emptyClipPictureTest.run(reporter);
}
static void test_clear(skiatest::Reporter* r, SkBBHFactory* factory) {
// SkPicture should always call clear()s on the target canvas, even if its clip is empty.
SkPictureRecorder src, dst;
// A picture that's just clear().
src.beginRecording(1,1, factory)
->clear(SK_ColorGREEN);
SkAutoTUnref<SkPicture> srcPic(src.endRecording());
// A target canvas with an empty clip.
SkCanvas* c = dst.beginRecording(1,1, NULL);
c->clipRect(SkRect::MakeEmpty());
srcPic->playback(c);
SkAutoTUnref<SkPicture> dstPic(dst.endRecording());
// Should be Clip - Save - Clear - Restore.
// Buggy implementations might return 1 (just Clip) or 3 (Clip - Save - Restore).
// TODO: can we just search that it contains "clear"? <reed>
REPORTER_ASSERT(r, dstPic->approximateOpCount() == 4 || dstPic->approximateOpCount() == 2);
}
DEF_TEST(PictureBBH_Clear, r) {
test_clear(r, NULL);
SkTileGridFactory::TileGridInfo grid = { {1,1}, {0,0}, {0,0} };
SkTileGridFactory tilegrid(grid);
test_clear(r, &tilegrid);
SkRTreeFactory rtree;
test_clear(r, &rtree);
}
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