/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Description:
* This test defines a series of elementatry test steps that perform
* a single or a small group of canvas API calls. Each test step is
* used in several test cases that verify that different types of SkCanvas
* flavors and derivatives pass it and yield consistent behavior. The
* test cases analyse results that are queryable through the API. They do
* not look at rendering results.
*
* Adding test stepss:
* The general pattern for creating a new test step is to write a test
* function of the form:
*
* static void MyTestStepFunction(SkCanvas* canvas,
* skiatest::Reporter* reporter,
* CanvasTestStep* testStep)
* {
* canvas->someCanvasAPImethod();
* (...)
* REPORTER_ASSERT_MESSAGE(reporter, (...), \
* testStep->assertMessage());
* }
*
* The definition of the test step function should be followed by an
* invocation of the TEST_STEP macro, which generates a class and
* instance for the test step:
*
* TEST_STEP(MyTestStep, MyTestStepFunction)
*
* There are also short hand macros for defining simple test steps
* in a single line of code. A simple test step is a one that is made
* of a single canvas API call.
*
* SIMPLE_TEST_STEP(MytestStep, someCanvasAPIMethod());
*
* There is another macro called SIMPLE_TEST_STEP_WITH_ASSERT that
* works the same way as SIMPLE_TEST_STEP, and additionally verifies
* that the invoked method returns a non-zero value.
*/
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkDeferredCanvas.h"
#include "SkDevice.h"
#include "SkMatrix.h"
#include "SkNWayCanvas.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkPictureRecord.h"
#include "SkProxyCanvas.h"
#include "SkRect.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkStream.h"
#include "SkTDArray.h"
#include "Test.h"
static const int kWidth = 2;
static const int kHeight = 2;
// Maximum stream length for picture serialization
static const size_t kMaxPictureBufferSize = 1024;
// Format strings that describe the test context. The %s token is where
// the name of the test step is inserted. The context is required for
// disambiguating the error in the case of failures that are reported in
// functions that are called multiple times in different contexts (test
// cases and test steps).
static const char* const kDefaultAssertMessageFormat = "%s";
static const char* const kCanvasDrawAssertMessageFormat =
"Drawing test step %s with SkCanvas";
static const char* const kPictureDrawAssertMessageFormat =
"Drawing test step %s with SkPicture";
static const char* const kPictureSecondDrawAssertMessageFormat =
"Duplicate draw of test step %s with SkPicture";
static const char* const kPictureReDrawAssertMessageFormat =
"Playing back test step %s from an SkPicture to another SkPicture";
static const char* const kDeferredDrawAssertMessageFormat =
"Drawing test step %s with SkDeferredCanvas";
static const char* const kProxyDrawAssertMessageFormat =
"Drawing test step %s with SkProxyCanvas";
static const char* const kNWayDrawAssertMessageFormat =
"Drawing test step %s with SkNWayCanvas";
static const char* const kRoundTripAssertMessageFormat =
"test step %s, SkPicture consistency after round trip";
static const char* const kPictureRecoringAssertMessageFormat =
"test step %s, SkPicture state consistency after recording";
static const char* const kPicturePlaybackAssertMessageFormat =
"test step %s, SkPicture state consistency in playback canvas";
static const char* const kDeferredPreFlushAssertMessageFormat =
"test step %s, SkDeferredCanvas state consistency before flush";
static const char* const kDeferredPostFlushAssertMessageFormat =
"test step %s, SkDeferredCanvas state consistency after flush";
static const char* const kPictureResourceReuseMessageFormat =
"test step %s, SkPicture duplicate flattened object test";
static const char* const kProxyStateAssertMessageFormat =
"test step %s, SkProxyCanvas state consistency";
static const char* const kProxyIndirectStateAssertMessageFormat =
"test step %s, SkProxyCanvas indirect canvas state consistency";
static const char* const kNWayStateAssertMessageFormat =
"test step %s, SkNWayCanvas state consistency";
static const char* const kNWayIndirect1StateAssertMessageFormat =
"test step %s, SkNWayCanvas indirect canvas 1 state consistency";
static const char* const kNWayIndirect2StateAssertMessageFormat =
"test step %s, SkNWayCanvas indirect canvas 2 state consistency";
static void createBitmap(SkBitmap* bm, SkBitmap::Config config, SkColor color) {
bm->setConfig(config, kWidth, kHeight);
bm->allocPixels();
bm->eraseColor(color);
}
class CanvasTestStep;
static SkTDArray<CanvasTestStep*>& testStepArray() {
static SkTDArray<CanvasTestStep*> theTests;
return theTests;
}
class CanvasTestStep {
public:
CanvasTestStep() {
*testStepArray().append() = this;
fAssertMessageFormat = kDefaultAssertMessageFormat;
}
virtual ~CanvasTestStep() { }
virtual void draw(SkCanvas*, skiatest::Reporter*) = 0;
virtual const char* name() const = 0;
const char* assertMessage() {
fAssertMessage.printf(fAssertMessageFormat, name());
return fAssertMessage.c_str();
}
void setAssertMessageFormat(const char* format) {
fAssertMessageFormat = format;
}
private:
SkString fAssertMessage;
const char* fAssertMessageFormat;
};
///////////////////////////////////////////////////////////////////////////////
// Constants used by test steps
const SkRect kTestRect =
SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(2), SkIntToScalar(1));
static SkMatrix testMatrix() {
SkMatrix matrix;
matrix.reset();
matrix.setScale(SkIntToScalar(2), SkIntToScalar(3));
return matrix;
}
const SkMatrix kTestMatrix = testMatrix();
static SkPath testPath() {
SkPath path;
path.addRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(2), SkIntToScalar(1)));
return path;
}
const SkPath kTestPath = testPath();
static SkRegion testRegion() {
SkRegion region;
SkIRect rect = SkIRect::MakeXYWH(0, 0, 2, 1);
region.setRect(rect);
return region;
}
const SkIRect kTestIRect = SkIRect::MakeXYWH(0, 0, 2, 1);
const SkRegion kTestRegion = testRegion();
const SkColor kTestColor = 0x01020304;
const SkPaint kTestPaint;
const SkPoint kTestPoints[3] = {
{SkIntToScalar(0), SkIntToScalar(0)},
{SkIntToScalar(2), SkIntToScalar(1)},
{SkIntToScalar(0), SkIntToScalar(2)}
};
const size_t kTestPointCount = 3;
static SkBitmap testBitmap() {
SkBitmap bitmap;
createBitmap(&bitmap, SkBitmap::kARGB_8888_Config, 0x05060708);
return bitmap;
}
SkBitmap kTestBitmap; // cannot be created during static init
SkString kTestText("Hello World");
SkPoint kTestPoint = SkPoint::Make(SkIntToScalar(0), SkIntToScalar(1));
///////////////////////////////////////////////////////////////////////////////
// Macros for defining test steps
#define TEST_STEP(NAME, FUNCTION) \
class NAME##_TestStep : public CanvasTestStep{ \
public: \
virtual void draw(SkCanvas* canvas, skiatest::Reporter* reporter) { \
FUNCTION (canvas, reporter, this); \
} \
virtual const char* name() const {return #NAME ;} \
}; \
static NAME##_TestStep NAME##_TestStepInstance;
#define SIMPLE_TEST_STEP(NAME, CALL) \
static void NAME##TestStep(SkCanvas* canvas, skiatest::Reporter*, \
CanvasTestStep*) { \
canvas-> CALL ; \
} \
TEST_STEP(NAME, NAME##TestStep )
#define SIMPLE_TEST_STEP_WITH_ASSERT(NAME, CALL) \
static void NAME##TestStep(SkCanvas* canvas, skiatest::Reporter* reporter, \
CanvasTestStep* testStep) { \
REPORTER_ASSERT_MESSAGE(reporter, canvas-> CALL , \
testStep->assertMessage()); \
} \
TEST_STEP(NAME, NAME##TestStep )
///////////////////////////////////////////////////////////////////////////////
// Basic test steps for most virtual methods in SkCanvas that draw or affect
// the state of the canvas.
SIMPLE_TEST_STEP(SaveMatrix, save(SkCanvas::kMatrix_SaveFlag));
SIMPLE_TEST_STEP(SaveClip, save(SkCanvas::kClip_SaveFlag));
SIMPLE_TEST_STEP(SaveMatrixClip, save(SkCanvas::kMatrixClip_SaveFlag));
SIMPLE_TEST_STEP(SaveLayer, saveLayer(NULL, NULL));
SIMPLE_TEST_STEP(BoundedSaveLayer, saveLayer(&kTestRect, NULL));
SIMPLE_TEST_STEP(PaintSaveLayer, saveLayer(NULL, &kTestPaint));
SIMPLE_TEST_STEP_WITH_ASSERT(Translate,
translate(SkIntToScalar(1), SkIntToScalar(2)));
SIMPLE_TEST_STEP_WITH_ASSERT(Scale,
scale(SkIntToScalar(1), SkIntToScalar(2)));
SIMPLE_TEST_STEP_WITH_ASSERT(Rotate, rotate(SkIntToScalar(1)));
SIMPLE_TEST_STEP_WITH_ASSERT(Skew,
skew(SkIntToScalar(1), SkIntToScalar(2)));
SIMPLE_TEST_STEP_WITH_ASSERT(Concat, concat(kTestMatrix));
SIMPLE_TEST_STEP(SetMatrix, setMatrix(kTestMatrix));
SIMPLE_TEST_STEP_WITH_ASSERT(ClipRect, clipRect(kTestRect));
SIMPLE_TEST_STEP_WITH_ASSERT(ClipPath, clipPath(kTestPath));
SIMPLE_TEST_STEP_WITH_ASSERT(ClipRegion,
clipRegion(kTestRegion, SkRegion::kReplace_Op));
SIMPLE_TEST_STEP(Clear, clear(kTestColor));
SIMPLE_TEST_STEP(DrawPaint, drawPaint(kTestPaint));
SIMPLE_TEST_STEP(DrawPointsPoints, drawPoints(SkCanvas::kPoints_PointMode,
kTestPointCount, kTestPoints, kTestPaint));
SIMPLE_TEST_STEP(DrawPointsLiness, drawPoints(SkCanvas::kLines_PointMode,
kTestPointCount, kTestPoints, kTestPaint));
SIMPLE_TEST_STEP(DrawPointsPolygon, drawPoints(SkCanvas::kPolygon_PointMode,
kTestPointCount, kTestPoints, kTestPaint));
SIMPLE_TEST_STEP(DrawRect, drawRect(kTestRect, kTestPaint));
SIMPLE_TEST_STEP(DrawPath, drawPath(kTestPath, kTestPaint));
SIMPLE_TEST_STEP(DrawBitmap, drawBitmap(kTestBitmap, 0, 0));
SIMPLE_TEST_STEP(DrawBitmapPaint, drawBitmap(kTestBitmap, 0, 0, &kTestPaint));
SIMPLE_TEST_STEP(DrawBitmapRect, drawBitmapRect(kTestBitmap, NULL, kTestRect,
NULL));
SIMPLE_TEST_STEP(DrawBitmapRectSrcRect, drawBitmapRect(kTestBitmap,
&kTestIRect, kTestRect, NULL));
SIMPLE_TEST_STEP(DrawBitmapRectPaint, drawBitmapRect(kTestBitmap, NULL,
kTestRect, &kTestPaint));
SIMPLE_TEST_STEP(DrawBitmapMatrix, drawBitmapMatrix(kTestBitmap, kTestMatrix,
NULL));
SIMPLE_TEST_STEP(DrawBitmapMatrixPaint, drawBitmapMatrix(kTestBitmap,
kTestMatrix, &kTestPaint));
SIMPLE_TEST_STEP(DrawBitmapNine, drawBitmapNine(kTestBitmap, kTestIRect,
kTestRect, NULL));
SIMPLE_TEST_STEP(DrawBitmapNinePaint, drawBitmapNine(kTestBitmap, kTestIRect,
kTestRect, &kTestPaint));
SIMPLE_TEST_STEP(DrawSprite, drawSprite(kTestBitmap, 0, 0, NULL));
SIMPLE_TEST_STEP(DrawSpritePaint, drawSprite(kTestBitmap, 0, 0, &kTestPaint));
SIMPLE_TEST_STEP(DrawText, drawText(kTestText.c_str(), kTestText.size(),
0, 1, kTestPaint));
SIMPLE_TEST_STEP(DrawPosText, drawPosText(kTestText.c_str(),
kTestText.size(), &kTestPoint, kTestPaint));
SIMPLE_TEST_STEP(DrawTextOnPath, drawTextOnPath(kTestText.c_str(),
kTestText.size(), kTestPath, NULL, kTestPaint));
SIMPLE_TEST_STEP(DrawTextOnPathMatrix, drawTextOnPath(kTestText.c_str(),
kTestText.size(), kTestPath, &kTestMatrix, kTestPaint));
SIMPLE_TEST_STEP(SetExternalMatrix, setExternalMatrix(&kTestMatrix));
SIMPLE_TEST_STEP(DrawData, drawData(kTestText.c_str(), kTestText.size()));
///////////////////////////////////////////////////////////////////////////////
// Complex test steps
static void DrawVerticesShaderTestStep(SkCanvas* canvas,
skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
SkPoint pts[4];
pts[0].set(0, 0);
pts[1].set(SkIntToScalar(kWidth), 0);
pts[2].set(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
pts[3].set(0, SkIntToScalar(kHeight));
SkPaint paint;
SkShader* shader = SkShader::CreateBitmapShader(kTestBitmap,
SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
canvas->drawVertices(SkCanvas::kTriangleFan_VertexMode, 4, pts, pts,
NULL, NULL, NULL, 0, paint);
}
TEST_STEP(DrawVerticesShader, DrawVerticesShaderTestStep);
static void DrawPictureTestStep(SkCanvas* canvas,
skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
SkPicture* testPicture = SkNEW_ARGS(SkPicture, ());
SkAutoUnref aup(testPicture);
SkCanvas* testCanvas = testPicture->beginRecording(kWidth, kHeight);
testCanvas->scale(SkIntToScalar(2), SkIntToScalar(1));
testCanvas->clipRect(kTestRect);
testCanvas->drawRect(kTestRect, kTestPaint);
canvas->drawPicture(*testPicture);
}
TEST_STEP(DrawPicture, DrawPictureTestStep);
static void SaveRestoreTestStep(SkCanvas* canvas,
skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
REPORTER_ASSERT_MESSAGE(reporter, 1 == canvas->getSaveCount(),
testStep->assertMessage());
size_t n = canvas->save();
REPORTER_ASSERT_MESSAGE(reporter, 1 == n, testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, 2 == canvas->getSaveCount(),
testStep->assertMessage());
canvas->save();
canvas->save();
REPORTER_ASSERT_MESSAGE(reporter, 4 == canvas->getSaveCount(),
testStep->assertMessage());
canvas->restoreToCount(2);
REPORTER_ASSERT_MESSAGE(reporter, 2 == canvas->getSaveCount(),
testStep->assertMessage());
// should this pin to 1, or be a no-op, or crash?
canvas->restoreToCount(0);
REPORTER_ASSERT_MESSAGE(reporter, 1 == canvas->getSaveCount(),
testStep->assertMessage());
}
TEST_STEP(SaveRestore, SaveRestoreTestStep);
static void DrawLayerTestStep(SkCanvas* canvas,
skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
REPORTER_ASSERT_MESSAGE(reporter, !canvas->isDrawingToLayer(),
testStep->assertMessage());
canvas->save();
REPORTER_ASSERT_MESSAGE(reporter, !canvas->isDrawingToLayer(),
testStep->assertMessage());
const SkRect* bounds = NULL; // null means include entire bounds
const SkPaint* paint = NULL;
canvas->saveLayer(bounds, paint);
REPORTER_ASSERT_MESSAGE(reporter, canvas->isDrawingToLayer(),
testStep->assertMessage());
canvas->restore();
REPORTER_ASSERT_MESSAGE(reporter, !canvas->isDrawingToLayer(),
testStep->assertMessage());
canvas->saveLayer(bounds, paint);
canvas->saveLayer(bounds, paint);
REPORTER_ASSERT_MESSAGE(reporter, canvas->isDrawingToLayer(),
testStep->assertMessage());
canvas->restore();
REPORTER_ASSERT_MESSAGE(reporter, canvas->isDrawingToLayer(),
testStep->assertMessage());
canvas->restore();
// now layer count should be 0
REPORTER_ASSERT_MESSAGE(reporter, !canvas->isDrawingToLayer(),
testStep->assertMessage());
}
TEST_STEP(DrawLayer, DrawLayerTestStep);
static void AssertCanvasStatesEqual(skiatest::Reporter* reporter,
const SkCanvas* canvas1,
const SkCanvas* canvas2,
CanvasTestStep* testStep) {
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getDeviceSize() ==
canvas2->getDeviceSize(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getSaveCount() ==
canvas2->getSaveCount(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->isDrawingToLayer() ==
canvas2->isDrawingToLayer(), testStep->assertMessage());
SkRect bounds1, bounds2;
REPORTER_ASSERT_MESSAGE(reporter,
canvas1->getClipBounds(&bounds1, SkCanvas::kAA_EdgeType) ==
canvas2->getClipBounds(&bounds2, SkCanvas::kAA_EdgeType),
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, bounds1 == bounds2,
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter,
canvas1->getClipBounds(&bounds1, SkCanvas::kBW_EdgeType) ==
canvas2->getClipBounds(&bounds2, SkCanvas::kBW_EdgeType),
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, bounds1 == bounds2,
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getDrawFilter() ==
canvas2->getDrawFilter(), testStep->assertMessage());
SkIRect deviceBounds1, deviceBounds2;
REPORTER_ASSERT_MESSAGE(reporter,
canvas1->getClipDeviceBounds(&deviceBounds1) ==
canvas2->getClipDeviceBounds(&deviceBounds2),
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, deviceBounds1 == deviceBounds2,
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getBounder() ==
canvas2->getBounder(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getTotalMatrix() ==
canvas2->getTotalMatrix(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getClipType() ==
canvas2->getClipType(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getTotalClip() ==
canvas2->getTotalClip(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, canvas1->getTotalClipStack() ==
canvas2->getTotalClipStack(), testStep->assertMessage());
// The following test code is commented out because the test fails when
// the canvas is an SkPictureRecord or SkDeferredCanvas
// Issue: http://code.google.com/p/skia/issues/detail?id=498
// Also, creating a LayerIter on an SkProxyCanvas crashes
// Issue: http://code.google.com/p/skia/issues/detail?id=499
/*
SkCanvas::LayerIter layerIter1(const_cast<SkCanvas*>(canvas1), false);
SkCanvas::LayerIter layerIter2(const_cast<SkCanvas*>(canvas2), false);
while (!layerIter1.done() && !layerIter2.done()) {
REPORTER_ASSERT_MESSAGE(reporter, layerIter1.matrix() ==
layerIter2.matrix(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, layerIter1.clip() ==
layerIter2.clip(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, layerIter1.paint() ==
layerIter2.paint(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, layerIter1.x() ==
layerIter2.x(), testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, layerIter1.y() ==
layerIter2.y(), testStep->assertMessage());
layerIter1.next();
layerIter2.next();
}
REPORTER_ASSERT_MESSAGE(reporter, layerIter1.done(),
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, layerIter2.done(),
testStep->assertMessage());
*/
}
// The following class groups static functions that need to access
// the privates members of SkPictureRecord
class SkPictureTester {
private:
static void AssertFlattenedObjectsEqual(
SkPictureRecord* referenceRecord,
SkPictureRecord* testRecord,
skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
REPORTER_ASSERT_MESSAGE(reporter,
referenceRecord->fBitmaps.count() ==
testRecord->fBitmaps.count(), testStep->assertMessage());
for (int i = 0; i < referenceRecord->fBitmaps.count(); ++i) {
REPORTER_ASSERT_MESSAGE(reporter,
SkFlatData::Compare(referenceRecord->fBitmaps[i],
testRecord->fBitmaps[i]) == 0, testStep->assertMessage());
}
REPORTER_ASSERT_MESSAGE(reporter,
referenceRecord->fMatrices.count() ==
testRecord->fMatrices.count(), testStep->assertMessage());
for (int i = 0; i < referenceRecord->fMatrices.count(); ++i) {
REPORTER_ASSERT_MESSAGE(reporter,
SkFlatData::Compare(referenceRecord->fMatrices[i],
testRecord->fMatrices[i]) == 0,
testStep->assertMessage());
}
REPORTER_ASSERT_MESSAGE(reporter,
referenceRecord->fPaints.count() ==
testRecord->fPaints.count(), testStep->assertMessage());
for (int i = 0; i < referenceRecord->fPaints.count(); ++i) {
REPORTER_ASSERT_MESSAGE(reporter,
SkFlatData::Compare(referenceRecord->fPaints[i],
testRecord->fPaints[i]) == 0, testStep->assertMessage());
}
REPORTER_ASSERT_MESSAGE(reporter,
referenceRecord->fRegions.count() ==
testRecord->fRegions.count(), testStep->assertMessage());
for (int i = 0; i < referenceRecord->fRegions.count(); ++i) {
REPORTER_ASSERT_MESSAGE(reporter,
SkFlatData::Compare(referenceRecord->fRegions[i],
testRecord->fRegions[i]) == 0, testStep->assertMessage());
}
REPORTER_ASSERT_MESSAGE(reporter,
!referenceRecord->fPathHeap ==
!testRecord->fPathHeap,
testStep->assertMessage());
// The following tests are commented out because they currently
// fail. Issue: http://code.google.com/p/skia/issues/detail?id=507
/*
if (referenceRecord->fPathHeap) {
REPORTER_ASSERT_MESSAGE(reporter,
referenceRecord->fPathHeap->count() ==
testRecord->fPathHeap->count(),
testStep->assertMessage());
for (int i = 0; i < referenceRecord->fPathHeap->count(); ++i) {
REPORTER_ASSERT_MESSAGE(reporter,
(*referenceRecord->fPathHeap)[i] ==
(*testRecord->fPathHeap)[i], testStep->assertMessage());
}
}
*/
}
public:
static void TestPictureSerializationRoundTrip(skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
testStep->setAssertMessageFormat(kPictureDrawAssertMessageFormat);
SkPicture referencePicture;
testStep->draw(referencePicture.beginRecording(kWidth, kHeight),
reporter);
SkPicture initialPicture;
testStep->draw(initialPicture.beginRecording(kWidth, kHeight),
reporter);
testStep->setAssertMessageFormat(kPictureReDrawAssertMessageFormat);
SkPicture roundTripPicture;
initialPicture.draw(roundTripPicture.beginRecording(kWidth, kHeight));
SkPictureRecord* referenceRecord = static_cast<SkPictureRecord*>(
referencePicture.getRecordingCanvas());
SkPictureRecord* roundTripRecord = static_cast<SkPictureRecord*>(
roundTripPicture.getRecordingCanvas());
testStep->setAssertMessageFormat(kPictureReDrawAssertMessageFormat);
// Verify that deserialization-serialization round trip conserves all
// data by comparing referenceRecord to roundTripRecord
REPORTER_ASSERT_MESSAGE(reporter, referenceRecord->fBitmapIndex ==
roundTripRecord->fBitmapIndex, testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, referenceRecord->fMatrixIndex ==
roundTripRecord->fMatrixIndex, testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, referenceRecord->fPaintIndex ==
roundTripRecord->fPaintIndex, testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, referenceRecord->fRegionIndex ==
roundTripRecord->fRegionIndex, testStep->assertMessage());
char referenceBuffer[kMaxPictureBufferSize];
SkMemoryWStream referenceStream(referenceBuffer,
kMaxPictureBufferSize);
referenceRecord->fWriter.writeToStream(&referenceStream);
char roundTripBuffer[kMaxPictureBufferSize];
SkMemoryWStream roundTripStream(roundTripBuffer,
kMaxPictureBufferSize);
roundTripRecord->fWriter.writeToStream(&roundTripStream);
REPORTER_ASSERT_MESSAGE(reporter,
roundTripStream.bytesWritten() == referenceStream.bytesWritten(),
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, 0 == memcmp(referenceBuffer,
roundTripBuffer, roundTripStream.bytesWritten()),
testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter, referenceRecord->fRecordFlags ==
roundTripRecord->fRecordFlags, testStep->assertMessage());
REPORTER_ASSERT_MESSAGE(reporter,
referenceRecord->fRestoreOffsetStack ==
roundTripRecord->fRestoreOffsetStack,
testStep->assertMessage());
AssertFlattenedObjectsEqual(referenceRecord, roundTripRecord,
reporter, testStep);
AssertCanvasStatesEqual(reporter, referenceRecord, roundTripRecord,
testStep);
}
static void TestPictureFlattenedObjectReuse(skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
// Verify that when a test step is executed twice, no extra resources
// are flattened during the second execution
testStep->setAssertMessageFormat(kPictureDrawAssertMessageFormat);
SkPicture referencePicture;
SkCanvas* referenceCanvas = referencePicture.beginRecording(kWidth,
kHeight);
testStep->draw(referenceCanvas, reporter);
SkPicture testPicture;
SkCanvas* testCanvas = testPicture.beginRecording(kWidth,
kHeight);
testStep->draw(testCanvas, reporter);
testStep->setAssertMessageFormat(kPictureSecondDrawAssertMessageFormat);
testStep->draw(testCanvas, reporter);
SkPictureRecord* referenceRecord = static_cast<SkPictureRecord*>(
referenceCanvas);
SkPictureRecord* testRecord = static_cast<SkPictureRecord*>(
testCanvas);
testStep->setAssertMessageFormat(kPictureResourceReuseMessageFormat);
AssertFlattenedObjectsEqual(referenceRecord, testRecord,
reporter, testStep);
}
};
static void TestPictureStateConsistency(skiatest::Reporter* reporter,
CanvasTestStep* testStep,
const SkCanvas& referenceCanvas) {
// Verify that the recording canvas's state is consistent
// with that of a regular canvas
SkPicture testPicture;
SkCanvas* pictureCanvas = testPicture.beginRecording(kWidth, kHeight);
testStep->setAssertMessageFormat(kPictureDrawAssertMessageFormat);
testStep->draw(pictureCanvas, reporter);
testStep->setAssertMessageFormat(kPictureRecoringAssertMessageFormat);
AssertCanvasStatesEqual(reporter, pictureCanvas, &referenceCanvas,
testStep);
SkBitmap playbackStore;
createBitmap(&playbackStore, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice playbackDevice(playbackStore);
SkCanvas playbackCanvas(&playbackDevice);
testPicture.draw(&playbackCanvas);
testStep->setAssertMessageFormat(kPicturePlaybackAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &playbackCanvas, &referenceCanvas,
testStep);
// The following test code is commented out because SkPicture is not
// currently expected to preserve state when restarting recording.
/*
SkCanvas* pictureCanvas = testPicture.beginRecording(kWidth, kHeight);
testStep->setAssertMessageFormat(kPictureResumeAssertMessageFormat);
AssertCanvasStatesEqual(reporter, pictureCanvas, &referenceCanvas,
testStep);
*/
}
static void TestDeferredCanvasStateConsistency(
skiatest::Reporter* reporter,
CanvasTestStep* testStep,
const SkCanvas& referenceCanvas) {
SkBitmap deferredStore;
createBitmap(&deferredStore, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice deferredDevice(deferredStore);
SkDeferredCanvas deferredCanvas(&deferredDevice);
testStep->setAssertMessageFormat(kDeferredDrawAssertMessageFormat);
testStep->draw(&deferredCanvas, reporter);
testStep->setAssertMessageFormat(kDeferredPreFlushAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &deferredCanvas, &referenceCanvas,
testStep);
// Verified that deferred canvas state is not affected by flushing
// pending draw operations
// The following test code is commented out because it currently fails.
// Issue: http://code.google.com/p/skia/issues/detail?id=496
/*
deferredCanvas.flush();
testStep->setAssertMessageFormat(kDeferredPostFlushAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &deferredCanvas, &referenceCanvas,
testStep);
*/
}
static void TestProxyCanvasStateConsistency(
skiatest::Reporter* reporter,
CanvasTestStep* testStep,
const SkCanvas& referenceCanvas) {
SkBitmap indirectStore;
createBitmap(&indirectStore, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice indirectDevice(indirectStore);
SkCanvas indirectCanvas(&indirectDevice);
SkProxyCanvas proxyCanvas(&indirectCanvas);
testStep->setAssertMessageFormat(kProxyDrawAssertMessageFormat);
testStep->draw(&proxyCanvas, reporter);
// Verify that the SkProxyCanvas reports consitent state
testStep->setAssertMessageFormat(kProxyStateAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &proxyCanvas, &referenceCanvas,
testStep);
// Verify that the indirect canvas reports consitent state
testStep->setAssertMessageFormat(kProxyIndirectStateAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &indirectCanvas, &referenceCanvas,
testStep);
}
static void TestNWayCanvasStateConsistency(
skiatest::Reporter* reporter,
CanvasTestStep* testStep,
const SkCanvas& referenceCanvas) {
SkBitmap indirectStore1;
createBitmap(&indirectStore1, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice indirectDevice1(indirectStore1);
SkCanvas indirectCanvas1(&indirectDevice1);
SkBitmap indirectStore2;
createBitmap(&indirectStore2, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice indirectDevice2(indirectStore2);
SkCanvas indirectCanvas2(&indirectDevice2);
SkISize canvasSize = referenceCanvas.getDeviceSize();
SkNWayCanvas nWayCanvas(canvasSize.width(), canvasSize.height());
nWayCanvas.addCanvas(&indirectCanvas1);
nWayCanvas.addCanvas(&indirectCanvas2);
testStep->setAssertMessageFormat(kNWayDrawAssertMessageFormat);
testStep->draw(&nWayCanvas, reporter);
// Verify that the SkProxyCanvas reports consitent state
testStep->setAssertMessageFormat(kNWayStateAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &nWayCanvas, &referenceCanvas,
testStep);
// Verify that the indirect canvases report consitent state
testStep->setAssertMessageFormat(kNWayIndirect1StateAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &indirectCanvas1, &referenceCanvas,
testStep);
testStep->setAssertMessageFormat(kNWayIndirect2StateAssertMessageFormat);
AssertCanvasStatesEqual(reporter, &indirectCanvas2, &referenceCanvas,
testStep);
}
/*
* This sub-test verifies that the test step passes when executed
* with SkCanvas and with classes derrived from SkCanvas. It also verifies
* that the all canvas derivatives report the same state as an SkCanvas
* after having executed the test step.
*/
static void TestOverrideStateConsistency(skiatest::Reporter* reporter,
CanvasTestStep* testStep) {
SkBitmap referenceStore;
createBitmap(&referenceStore, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice referenceDevice(referenceStore);
SkCanvas referenceCanvas(&referenceDevice);
testStep->setAssertMessageFormat(kCanvasDrawAssertMessageFormat);
testStep->draw(&referenceCanvas, reporter);
TestPictureStateConsistency(reporter, testStep, referenceCanvas);
TestDeferredCanvasStateConsistency(reporter, testStep, referenceCanvas);
// The following test code is commented out because SkProxyCanvas is
// missing a lot of virtual overrides on get* methods, which are used
// to verify canvas state.
// Issue: http://code.google.com/p/skia/issues/detail?id=500
//TestProxyCanvasStateConsistency(reporter, testStep, referenceCanvas);
// The following test code is commented out because SkNWayCanvas does not
// report correct clipping and device bounds information
// Issue: http://code.google.com/p/skia/issues/detail?id=501
//TestNWayCanvasStateConsistency(reporter, testStep, referenceCanvas);
}
static void TestCanvas(skiatest::Reporter* reporter) {
// Init global here because bitmap pixels cannot be alocated during
// static initialization
kTestBitmap = testBitmap();
for (int testStep = 0; testStep < testStepArray().count(); testStep++) {
TestOverrideStateConsistency(reporter, testStepArray()[testStep]);
SkPictureTester::TestPictureSerializationRoundTrip(reporter,
testStepArray()[testStep]);
SkPictureTester::TestPictureFlattenedObjectReuse(reporter,
testStepArray()[testStep]);
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Canvas", TestCanvasClass, TestCanvas)