skia2/tests/RecorderTest.cpp
commit-bot@chromium.org 653d51867c SkRecord bug fixes
Optional arguments to SkCanvas calls leaked refs (but not memory) because we
didn't destruct the optional objects (really, just SkPaint: other optional args
are all POD).  This adds Optional and PODArray, where Optional makes sure to
call the destructor.

I overlooked that SkPictureRecord really does call paint.computeFastBounds().
Do the same in SkRecordDraw.

BUG=skia:2378
R=reed@google.com, mtklein@google.com, tomhudson@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/235983015

git-svn-id: http://skia.googlecode.com/svn/trunk@14197 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-04-15 14:27:14 +00:00

66 lines
1.7 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 "Test.h"
#include "SkRecord.h"
#include "SkRecorder.h"
#include "SkRecords.h"
#include "SkEmptyShader.h"
#define COUNT(T) + 1
static const int kRecordTypes = SK_RECORD_TYPES(COUNT);
#undef COUNT
// Tallies the types of commands it sees into a histogram.
class Tally {
public:
Tally() { sk_bzero(&fHistogram, sizeof(fHistogram)); }
template <typename T>
void operator()(const T&) { ++fHistogram[T::kType]; }
template <typename T>
int count() const { return fHistogram[T::kType]; }
private:
int fHistogram[kRecordTypes];
};
DEF_TEST(Recorder, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, 1920, 1080);
recorder.drawRect(SkRect::MakeWH(10, 10), SkPaint());
Tally tally;
record.visit(tally);
REPORTER_ASSERT(r, 1 == tally.count<SkRecords::DrawRect>());
}
// Regression test for leaking refs held by optional arguments.
DEF_TEST(Recorder_RefLeaking, r) {
// We use SaveLayer to test:
// - its SkRect argument is optional and SkRect is POD. Just testing that that works.
// - its SkPaint argument is optional and SkPaint is not POD. The bug was here.
SkRect bounds;
SkPaint paint;
paint.setShader(SkNEW(SkEmptyShader))->unref();
REPORTER_ASSERT(r, paint.getShader()->unique());
{
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, 1920, 1080);
recorder.saveLayer(&bounds, &paint);
REPORTER_ASSERT(r, !paint.getShader()->unique());
}
REPORTER_ASSERT(r, paint.getShader()->unique());
}