| /* |
| * 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, |
| * const TestData& d, |
| * 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 "SkClipStack.h" |
| #include "SkDocument.h" |
| #include "SkMatrix.h" |
| #include "SkNWayCanvas.h" |
| #include "SkPaint.h" |
| #include "SkPaintFilterCanvas.h" |
| #include "SkPath.h" |
| #include "SkPicture.h" |
| #include "SkPictureRecord.h" |
| #include "SkPictureRecorder.h" |
| #include "SkRasterClip.h" |
| #include "SkRect.h" |
| #include "SkRegion.h" |
| #include "SkShader.h" |
| #include "SkStream.h" |
| #include "SkSurface.h" |
| #include "SkTemplates.h" |
| #include "SkTDArray.h" |
| #include "Test.h" |
| |
| DEF_TEST(canvas_clipbounds, reporter) { |
| SkCanvas canvas(10, 10); |
| SkIRect irect, irect2; |
| SkRect rect, rect2; |
| |
| irect = canvas.getDeviceClipBounds(); |
| REPORTER_ASSERT(reporter, irect == SkIRect::MakeWH(10, 10)); |
| REPORTER_ASSERT(reporter, canvas.getDeviceClipBounds(&irect2)); |
| REPORTER_ASSERT(reporter, irect == irect2); |
| |
| // local bounds are always too big today -- can we trim them? |
| rect = canvas.getLocalClipBounds(); |
| REPORTER_ASSERT(reporter, rect.contains(SkRect::MakeWH(10, 10))); |
| REPORTER_ASSERT(reporter, canvas.getLocalClipBounds(&rect2)); |
| REPORTER_ASSERT(reporter, rect == rect2); |
| |
| canvas.clipRect(SkRect::MakeEmpty()); |
| |
| irect = canvas.getDeviceClipBounds(); |
| REPORTER_ASSERT(reporter, irect == SkIRect::MakeEmpty()); |
| REPORTER_ASSERT(reporter, !canvas.getDeviceClipBounds(&irect2)); |
| REPORTER_ASSERT(reporter, irect == irect2); |
| |
| rect = canvas.getLocalClipBounds(); |
| REPORTER_ASSERT(reporter, rect == SkRect::MakeEmpty()); |
| REPORTER_ASSERT(reporter, !canvas.getLocalClipBounds(&rect2)); |
| REPORTER_ASSERT(reporter, rect == rect2); |
| |
| // Test for wacky sizes that we (historically) have guarded against |
| { |
| SkCanvas c(-10, -20); |
| REPORTER_ASSERT(reporter, c.getBaseLayerSize() == SkISize::MakeEmpty()); |
| |
| SkPictureRecorder().beginRecording({ 5, 5, 4, 4 }); |
| } |
| } |
| |
| const SkIRect gBaseRestrictedR = { 0, 0, 10, 10 }; |
| |
| static void test_restriction(skiatest::Reporter* reporter, SkCanvas* canvas) { |
| REPORTER_ASSERT(reporter, canvas->getDeviceClipBounds() == gBaseRestrictedR); |
| |
| const SkIRect restrictionR = { 2, 2, 8, 8 }; |
| canvas->androidFramework_setDeviceClipRestriction(restrictionR); |
| REPORTER_ASSERT(reporter, canvas->getDeviceClipBounds() == restrictionR); |
| |
| const SkIRect clipR = { 4, 4, 6, 6 }; |
| canvas->clipRect(SkRect::Make(clipR), SkClipOp::kIntersect); |
| REPORTER_ASSERT(reporter, canvas->getDeviceClipBounds() == clipR); |
| |
| // now test that expanding clipops can't exceed the restriction |
| const SkClipOp expanders[] = { |
| SkClipOp::kUnion_deprecated, |
| SkClipOp::kXOR_deprecated, |
| SkClipOp::kReverseDifference_deprecated, |
| SkClipOp::kReplace_deprecated, |
| }; |
| |
| const SkRect expandR = { 0, 0, 5, 9 }; |
| SkASSERT(!SkRect::Make(restrictionR).contains(expandR)); |
| |
| for (SkClipOp op : expanders) { |
| canvas->save(); |
| canvas->clipRect(expandR, op); |
| REPORTER_ASSERT(reporter, gBaseRestrictedR.contains(canvas->getDeviceClipBounds())); |
| canvas->restore(); |
| } |
| } |
| |
| /** |
| * Clip restriction logic exists in the canvas itself, and in various kinds of devices. |
| * |
| * This test explicitly tries to exercise that variety: |
| * - picture : empty device but exercises canvas itself |
| * - pdf : uses SkClipStack in its device (as does SVG and GPU) |
| * - raster : uses SkRasterClip in its device |
| */ |
| DEF_TEST(canvas_clip_restriction, reporter) { |
| test_restriction(reporter, SkPictureRecorder().beginRecording(SkRect::Make(gBaseRestrictedR))); |
| |
| SkNullWStream stream; |
| auto doc = SkDocument::MakePDF(&stream); |
| test_restriction(reporter, doc->beginPage(SkIntToScalar(gBaseRestrictedR.width()), |
| SkIntToScalar(gBaseRestrictedR.height()))); |
| |
| auto surf = SkSurface::MakeRasterN32Premul(gBaseRestrictedR.width(), |
| gBaseRestrictedR.height(), nullptr); |
| test_restriction(reporter, surf->getCanvas()); |
| } |
| |
| static const int kWidth = 2, kHeight = 2; |
| |
| static void createBitmap(SkBitmap* bm, SkColor color) { |
| bm->allocN32Pixels(kWidth, kHeight); |
| bm->eraseColor(color); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Constants used by test steps |
| const SkPoint kTestPoints[] = { |
| {SkIntToScalar(0), SkIntToScalar(0)}, |
| {SkIntToScalar(2), SkIntToScalar(1)}, |
| {SkIntToScalar(0), SkIntToScalar(2)} |
| }; |
| const SkPoint kTestPoints2[] = { |
| { SkIntToScalar(0), SkIntToScalar(1) }, |
| { SkIntToScalar(1), SkIntToScalar(1) }, |
| { SkIntToScalar(2), SkIntToScalar(1) }, |
| { SkIntToScalar(3), SkIntToScalar(1) }, |
| { SkIntToScalar(4), SkIntToScalar(1) }, |
| { SkIntToScalar(5), SkIntToScalar(1) }, |
| { SkIntToScalar(6), SkIntToScalar(1) }, |
| { SkIntToScalar(7), SkIntToScalar(1) }, |
| { SkIntToScalar(8), SkIntToScalar(1) }, |
| { SkIntToScalar(9), SkIntToScalar(1) }, |
| { SkIntToScalar(10), SkIntToScalar(1) } |
| }; |
| |
| struct TestData { |
| public: |
| TestData() |
| : fRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0), |
| SkIntToScalar(2), SkIntToScalar(1))) |
| , fMatrix(TestMatrix()) |
| , fPath(TestPath()) |
| , fNearlyZeroLengthPath(TestNearlyZeroLengthPath()) |
| , fIRect(SkIRect::MakeXYWH(0, 0, 2, 1)) |
| , fRegion(TestRegion()) |
| , fColor(0x01020304) |
| , fPoints(kTestPoints) |
| , fPointCount(3) |
| , fWidth(2) |
| , fHeight(2) |
| , fText("Hello World") |
| , fPoints2(kTestPoints2) |
| , fBitmap(TestBitmap()) |
| { } |
| |
| SkRect fRect; |
| SkMatrix fMatrix; |
| SkPath fPath; |
| SkPath fNearlyZeroLengthPath; |
| SkIRect fIRect; |
| SkRegion fRegion; |
| SkColor fColor; |
| SkPaint fPaint; |
| const SkPoint* fPoints; |
| size_t fPointCount; |
| int fWidth; |
| int fHeight; |
| SkString fText; |
| const SkPoint* fPoints2; |
| SkBitmap fBitmap; |
| |
| private: |
| static SkMatrix TestMatrix() { |
| SkMatrix matrix; |
| matrix.reset(); |
| matrix.setScale(SkIntToScalar(2), SkIntToScalar(3)); |
| |
| return matrix; |
| } |
| static SkPath TestPath() { |
| SkPath path; |
| path.addRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0), |
| SkIntToScalar(2), SkIntToScalar(1))); |
| return path; |
| } |
| static SkPath TestNearlyZeroLengthPath() { |
| SkPath path; |
| SkPoint pt1 = { 0, 0 }; |
| SkPoint pt2 = { 0, SK_ScalarNearlyZero }; |
| SkPoint pt3 = { SkIntToScalar(1), 0 }; |
| SkPoint pt4 = { SkIntToScalar(1), SK_ScalarNearlyZero/2 }; |
| path.moveTo(pt1); |
| path.lineTo(pt2); |
| path.lineTo(pt3); |
| path.lineTo(pt4); |
| return path; |
| } |
| static SkRegion TestRegion() { |
| SkRegion region; |
| SkIRect rect = SkIRect::MakeXYWH(0, 0, 2, 1); |
| region.setRect(rect); |
| return region; |
| } |
| static SkBitmap TestBitmap() { |
| SkBitmap bitmap; |
| createBitmap(&bitmap, 0x05060708); |
| return bitmap; |
| } |
| }; |
| |
| class Canvas2CanvasClipVisitor : public SkCanvas::ClipVisitor { |
| public: |
| Canvas2CanvasClipVisitor(SkCanvas* target) : fTarget(target) {} |
| |
| void clipRect(const SkRect& r, SkClipOp op, bool aa) override { |
| fTarget->clipRect(r, op, aa); |
| } |
| void clipRRect(const SkRRect& r, SkClipOp op, bool aa) override { |
| fTarget->clipRRect(r, op, aa); |
| } |
| void clipPath(const SkPath& p, SkClipOp op, bool aa) override { |
| fTarget->clipPath(p, op, aa); |
| } |
| |
| private: |
| SkCanvas* fTarget; |
| }; |
| |
| // 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 kPdfAssertMessageFormat = |
| "PDF sanity check failed %s"; |
| |
| class CanvasTestStep; |
| static SkTDArray<CanvasTestStep*>& testStepArray() { |
| static SkTDArray<CanvasTestStep*> theTests; |
| return theTests; |
| } |
| |
| class CanvasTestStep { |
| public: |
| CanvasTestStep(bool fEnablePdfTesting = true) { |
| *testStepArray().append() = this; |
| fAssertMessageFormat = kDefaultAssertMessageFormat; |
| this->fEnablePdfTesting = fEnablePdfTesting; |
| } |
| virtual ~CanvasTestStep() { } |
| |
| virtual void draw(SkCanvas*, const TestData&, 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; |
| } |
| |
| bool enablePdfTesting() { return fEnablePdfTesting; } |
| |
| private: |
| SkString fAssertMessage; |
| const char* fAssertMessageFormat; |
| bool fEnablePdfTesting; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Macros for defining test steps |
| |
| #define TEST_STEP(NAME, FUNCTION) \ |
| class NAME##_TestStep : public CanvasTestStep{ \ |
| public: \ |
| virtual void draw(SkCanvas* canvas, const TestData& d, \ |
| skiatest::Reporter* reporter) { \ |
| FUNCTION (canvas, d, reporter, this); \ |
| } \ |
| virtual const char* name() const {return #NAME ;} \ |
| }; \ |
| static NAME##_TestStep NAME##_TestStepInstance; |
| |
| #define TEST_STEP_NO_PDF(NAME, FUNCTION) \ |
| class NAME##_TestStep : public CanvasTestStep{ \ |
| public: \ |
| NAME##_TestStep() : CanvasTestStep(false) {} \ |
| virtual void draw(SkCanvas* canvas, const TestData& d, \ |
| skiatest::Reporter* reporter) { \ |
| FUNCTION (canvas, d, 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, const TestData& d, \ |
| skiatest::Reporter*, CanvasTestStep*) { \ |
| canvas-> CALL ; \ |
| } \ |
| TEST_STEP(NAME, NAME##TestStep ) |
| |
| #define SIMPLE_TEST_STEP_WITH_ASSERT(NAME, CALL) \ |
| static void NAME##TestStep(SkCanvas* canvas, const TestData& d, \ |
| skiatest::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(Translate, translate(SkIntToScalar(1), SkIntToScalar(2))); |
| SIMPLE_TEST_STEP(Scale, scale(SkIntToScalar(1), SkIntToScalar(2))); |
| SIMPLE_TEST_STEP(Rotate, rotate(SkIntToScalar(1))); |
| SIMPLE_TEST_STEP(Skew, skew(SkIntToScalar(1), SkIntToScalar(2))); |
| SIMPLE_TEST_STEP(Concat, concat(d.fMatrix)); |
| SIMPLE_TEST_STEP(SetMatrix, setMatrix(d.fMatrix)); |
| SIMPLE_TEST_STEP(ClipRect, clipRect(d.fRect)); |
| SIMPLE_TEST_STEP(ClipPath, clipPath(d.fPath)); |
| SIMPLE_TEST_STEP(ClipRegion, clipRegion(d.fRegion, kReplace_SkClipOp)); |
| SIMPLE_TEST_STEP(Clear, clear(d.fColor)); |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Complex test steps |
| |
| static void SaveMatrixClipStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter* reporter, CanvasTestStep* testStep) { |
| int saveCount = canvas->getSaveCount(); |
| canvas->save(); |
| canvas->translate(SkIntToScalar(1), SkIntToScalar(2)); |
| canvas->clipRegion(d.fRegion); |
| canvas->restore(); |
| REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount, |
| testStep->assertMessage()); |
| REPORTER_ASSERT_MESSAGE(reporter, canvas->getTotalMatrix().isIdentity(), |
| testStep->assertMessage()); |
| // REPORTER_ASSERT_MESSAGE(reporter, canvas->getTotalClip() != kTestRegion, testStep->assertMessage()); |
| } |
| TEST_STEP(SaveMatrixClip, SaveMatrixClipStep); |
| |
| static void SaveLayerStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter* reporter, CanvasTestStep* testStep) { |
| int saveCount = canvas->getSaveCount(); |
| canvas->saveLayer(nullptr, nullptr); |
| canvas->restore(); |
| REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount, |
| testStep->assertMessage()); |
| } |
| TEST_STEP(SaveLayer, SaveLayerStep); |
| |
| static void BoundedSaveLayerStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter* reporter, CanvasTestStep* testStep) { |
| int saveCount = canvas->getSaveCount(); |
| canvas->saveLayer(&d.fRect, nullptr); |
| canvas->restore(); |
| REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount, |
| testStep->assertMessage()); |
| } |
| TEST_STEP(BoundedSaveLayer, BoundedSaveLayerStep); |
| |
| static void PaintSaveLayerStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter* reporter, CanvasTestStep* testStep) { |
| int saveCount = canvas->getSaveCount(); |
| canvas->saveLayer(nullptr, &d.fPaint); |
| canvas->restore(); |
| REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount, |
| testStep->assertMessage()); |
| } |
| TEST_STEP(PaintSaveLayer, PaintSaveLayerStep); |
| |
| static void TwoClipOpsStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter*, CanvasTestStep*) { |
| // This test exercises a functionality in SkPicture that leads to the |
| // recording of restore offset placeholders. This test will trigger an |
| // assertion at playback time if the placeholders are not properly |
| // filled when the recording ends. |
| canvas->clipRect(d.fRect); |
| canvas->clipRegion(d.fRegion); |
| } |
| TEST_STEP(TwoClipOps, TwoClipOpsStep); |
| |
| // exercise fix for http://code.google.com/p/skia/issues/detail?id=560 |
| // ('SkPathStroker::lineTo() fails for line with length SK_ScalarNearlyZero') |
| static void DrawNearlyZeroLengthPathTestStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter*, CanvasTestStep*) { |
| SkPaint paint; |
| paint.setStrokeWidth(SkIntToScalar(1)); |
| paint.setStyle(SkPaint::kStroke_Style); |
| |
| canvas->drawPath(d.fNearlyZeroLengthPath, paint); |
| } |
| TEST_STEP(DrawNearlyZeroLengthPath, DrawNearlyZeroLengthPathTestStep); |
| |
| static void DrawVerticesShaderTestStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter*, CanvasTestStep*) { |
| SkPoint pts[4]; |
| pts[0].set(0, 0); |
| pts[1].set(SkIntToScalar(d.fWidth), 0); |
| pts[2].set(SkIntToScalar(d.fWidth), SkIntToScalar(d.fHeight)); |
| pts[3].set(0, SkIntToScalar(d.fHeight)); |
| SkPaint paint; |
| paint.setShader(SkShader::MakeBitmapShader(d.fBitmap, SkShader::kClamp_TileMode, |
| SkShader::kClamp_TileMode)); |
| canvas->drawVertices(SkCanvas::kTriangleFan_VertexMode, 4, pts, pts, |
| nullptr, SkBlendMode::kModulate, nullptr, 0, paint); |
| } |
| // NYI: issue 240. |
| TEST_STEP_NO_PDF(DrawVerticesShader, DrawVerticesShaderTestStep); |
| |
| static void DrawPictureTestStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter*, CanvasTestStep*) { |
| SkPictureRecorder recorder; |
| SkCanvas* testCanvas = recorder.beginRecording(SkIntToScalar(d.fWidth), SkIntToScalar(d.fHeight), |
| nullptr, 0); |
| testCanvas->scale(SkIntToScalar(2), SkIntToScalar(1)); |
| testCanvas->clipRect(d.fRect); |
| testCanvas->drawRect(d.fRect, d.fPaint); |
| |
| canvas->drawPicture(recorder.finishRecordingAsPicture()); |
| } |
| TEST_STEP(DrawPicture, DrawPictureTestStep); |
| |
| static void SaveRestoreTestStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter* reporter, CanvasTestStep* testStep) { |
| int baseSaveCount = canvas->getSaveCount(); |
| int n = canvas->save(); |
| REPORTER_ASSERT_MESSAGE(reporter, baseSaveCount == n, testStep->assertMessage()); |
| REPORTER_ASSERT_MESSAGE(reporter, baseSaveCount + 1 == canvas->getSaveCount(), |
| testStep->assertMessage()); |
| canvas->save(); |
| canvas->save(); |
| REPORTER_ASSERT_MESSAGE(reporter, baseSaveCount + 3 == canvas->getSaveCount(), |
| testStep->assertMessage()); |
| canvas->restoreToCount(baseSaveCount + 1); |
| REPORTER_ASSERT_MESSAGE(reporter, baseSaveCount + 1 == 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 NestedSaveRestoreWithSolidPaintTestStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter*, CanvasTestStep*) { |
| // This test step challenges the TestDeferredCanvasStateConsistency |
| // test cases because the opaque paint can trigger an optimization |
| // that discards previously recorded commands. The challenge is to maintain |
| // correct clip and matrix stack state. |
| canvas->resetMatrix(); |
| canvas->rotate(SkIntToScalar(30)); |
| canvas->save(); |
| canvas->translate(SkIntToScalar(2), SkIntToScalar(1)); |
| canvas->save(); |
| canvas->scale(SkIntToScalar(3), SkIntToScalar(3)); |
| SkPaint paint; |
| paint.setColor(0xFFFFFFFF); |
| canvas->drawPaint(paint); |
| canvas->restore(); |
| canvas->restore(); |
| } |
| TEST_STEP(NestedSaveRestoreWithSolidPaint, \ |
| NestedSaveRestoreWithSolidPaintTestStep); |
| |
| static void NestedSaveRestoreWithFlushTestStep(SkCanvas* canvas, const TestData& d, |
| skiatest::Reporter*, CanvasTestStep*) { |
| // This test step challenges the TestDeferredCanvasStateConsistency |
| // test case because the canvas flush on a deferred canvas will |
| // reset the recording session. The challenge is to maintain correct |
| // clip and matrix stack state on the playback canvas. |
| canvas->resetMatrix(); |
| canvas->rotate(SkIntToScalar(30)); |
| canvas->save(); |
| canvas->translate(SkIntToScalar(2), SkIntToScalar(1)); |
| canvas->save(); |
| canvas->scale(SkIntToScalar(3), SkIntToScalar(3)); |
| canvas->drawRect(d.fRect,d.fPaint); |
| canvas->flush(); |
| canvas->restore(); |
| canvas->restore(); |
| } |
| TEST_STEP(NestedSaveRestoreWithFlush, NestedSaveRestoreWithFlushTestStep); |
| |
| static void DescribeTopLayerTestStep(SkCanvas* canvas, |
| const TestData& d, |
| skiatest::Reporter* reporter, |
| CanvasTestStep* testStep) { |
| SkMatrix m; |
| SkIRect r; |
| // NOTE: adjustToTopLayer() does *not* reduce the clip size, even if the canvas |
| // is smaller than 10x10! |
| |
| canvas->temporary_internal_describeTopLayer(&m, &r); |
| REPORTER_ASSERT_MESSAGE(reporter, m.isIdentity(), testStep->assertMessage()); |
| REPORTER_ASSERT_MESSAGE(reporter, r == SkIRect::MakeXYWH(0, 0, 2, 2), |
| testStep->assertMessage()); |
| |
| // Putting a full-canvas layer on it should make no change to the results. |
| SkRect layerBounds = SkRect::MakeXYWH(0.f, 0.f, 10.f, 10.f); |
| canvas->saveLayer(layerBounds, nullptr); |
| canvas->temporary_internal_describeTopLayer(&m, &r); |
| REPORTER_ASSERT_MESSAGE(reporter, m.isIdentity(), testStep->assertMessage()); |
| REPORTER_ASSERT_MESSAGE(reporter, r == SkIRect::MakeXYWH(0, 0, 2, 2), |
| testStep->assertMessage()); |
| canvas->restore(); |
| |
| // Adding a translated layer translates the results. |
| // Default canvas is only 2x2, so can't offset our layer by very much at all; |
| // saveLayer() aborts if the bounds don't intersect. |
| layerBounds = SkRect::MakeXYWH(1.f, 1.f, 6.f, 6.f); |
| canvas->saveLayer(layerBounds, nullptr); |
| canvas->temporary_internal_describeTopLayer(&m, &r); |
| REPORTER_ASSERT_MESSAGE(reporter, m == SkMatrix::MakeTrans(-1.f, -1.f), |
| testStep->assertMessage()); |
| REPORTER_ASSERT_MESSAGE(reporter, r == SkIRect::MakeXYWH(0, 0, 1, 1), |
| testStep->assertMessage()); |
| canvas->restore(); |
| |
| } |
| TEST_STEP(DescribeTopLayer, DescribeTopLayerTestStep); |
| |
| |
| static void TestPdfDevice(skiatest::Reporter* reporter, const TestData& d, CanvasTestStep* step) { |
| SkDynamicMemoryWStream outStream; |
| sk_sp<SkDocument> doc(SkDocument::MakePDF(&outStream)); |
| REPORTER_ASSERT(reporter, doc); |
| if (!doc) { |
| return; |
| } |
| SkCanvas* canvas = doc->beginPage(SkIntToScalar(d.fWidth), |
| SkIntToScalar(d.fHeight)); |
| REPORTER_ASSERT(reporter, canvas); |
| step->setAssertMessageFormat(kPdfAssertMessageFormat); |
| step->draw(canvas, d, reporter); |
| } |
| |
| /* |
| * 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, const TestData& d, |
| CanvasTestStep* testStep) { |
| SkBitmap referenceStore; |
| createBitmap(&referenceStore, 0xFFFFFFFF); |
| SkCanvas referenceCanvas(referenceStore); |
| testStep->setAssertMessageFormat(kCanvasDrawAssertMessageFormat); |
| testStep->draw(&referenceCanvas, d, reporter); |
| } |
| |
| static void test_newraster(skiatest::Reporter* reporter) { |
| SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10); |
| const size_t minRowBytes = info.minRowBytes(); |
| const size_t size = info.getSafeSize(minRowBytes); |
| SkAutoTMalloc<SkPMColor> storage(size); |
| SkPMColor* baseAddr = storage.get(); |
| sk_bzero(baseAddr, size); |
| |
| std::unique_ptr<SkCanvas> canvas = SkCanvas::MakeRasterDirect(info, baseAddr, minRowBytes); |
| REPORTER_ASSERT(reporter, canvas); |
| |
| SkPixmap pmap; |
| const SkPMColor* addr = canvas->peekPixels(&pmap) ? pmap.addr32() : nullptr; |
| REPORTER_ASSERT(reporter, addr); |
| REPORTER_ASSERT(reporter, info == pmap.info()); |
| REPORTER_ASSERT(reporter, minRowBytes == pmap.rowBytes()); |
| for (int y = 0; y < info.height(); ++y) { |
| for (int x = 0; x < info.width(); ++x) { |
| REPORTER_ASSERT(reporter, 0 == addr[x]); |
| } |
| addr = (const SkPMColor*)((const char*)addr + pmap.rowBytes()); |
| } |
| |
| // now try a deliberately bad info |
| info = info.makeWH(-1, info.height()); |
| REPORTER_ASSERT(reporter, nullptr == SkCanvas::MakeRasterDirect(info, baseAddr, minRowBytes)); |
| |
| // too big |
| info = info.makeWH(1 << 30, 1 << 30); |
| REPORTER_ASSERT(reporter, nullptr == SkCanvas::MakeRasterDirect(info, baseAddr, minRowBytes)); |
| |
| // not a valid pixel type |
| info = SkImageInfo::Make(10, 10, kUnknown_SkColorType, info.alphaType()); |
| REPORTER_ASSERT(reporter, nullptr == SkCanvas::MakeRasterDirect(info, baseAddr, minRowBytes)); |
| |
| // We should succeed with a zero-sized valid info |
| info = SkImageInfo::MakeN32Premul(0, 0); |
| canvas = SkCanvas::MakeRasterDirect(info, baseAddr, minRowBytes); |
| REPORTER_ASSERT(reporter, canvas); |
| } |
| |
| DEF_TEST(Canvas, reporter) { |
| TestData d; |
| |
| for (int testStep = 0; testStep < testStepArray().count(); testStep++) { |
| TestOverrideStateConsistency(reporter, d, testStepArray()[testStep]); |
| if (testStepArray()[testStep]->enablePdfTesting()) { |
| TestPdfDevice(reporter, d, testStepArray()[testStep]); |
| } |
| } |
| |
| test_newraster(reporter); |
| } |
| |
| DEF_TEST(Canvas_SaveState, reporter) { |
| SkCanvas canvas(10, 10); |
| REPORTER_ASSERT(reporter, 1 == canvas.getSaveCount()); |
| |
| int n = canvas.save(); |
| REPORTER_ASSERT(reporter, 1 == n); |
| REPORTER_ASSERT(reporter, 2 == canvas.getSaveCount()); |
| |
| n = canvas.saveLayer(nullptr, nullptr); |
| REPORTER_ASSERT(reporter, 2 == n); |
| REPORTER_ASSERT(reporter, 3 == canvas.getSaveCount()); |
| |
| canvas.restore(); |
| REPORTER_ASSERT(reporter, 2 == canvas.getSaveCount()); |
| canvas.restore(); |
| REPORTER_ASSERT(reporter, 1 == canvas.getSaveCount()); |
| } |
| |
| DEF_TEST(Canvas_ClipEmptyPath, reporter) { |
| SkCanvas canvas(10, 10); |
| canvas.save(); |
| SkPath path; |
| canvas.clipPath(path); |
| canvas.restore(); |
| canvas.save(); |
| path.moveTo(5, 5); |
| canvas.clipPath(path); |
| canvas.restore(); |
| canvas.save(); |
| path.moveTo(7, 7); |
| canvas.clipPath(path); // should not assert here |
| canvas.restore(); |
| } |
| |
| #define SHADOW_TEST_CANVAS_CONST 10 |
| #ifdef SK_EXPERIMENTAL_SHADOWING |
| class SkShadowTestCanvas : public SkPaintFilterCanvas { |
| public: |
| |
| SkShadowTestCanvas(int x, int y, skiatest::Reporter* reporter) |
| : INHERITED(x,y) |
| , fReporter(reporter) {} |
| |
| bool onFilter(SkTCopyOnFirstWrite<SkPaint>* paint, Type type) const { |
| REPORTER_ASSERT(this->fReporter, this->getZ() == SHADOW_TEST_CANVAS_CONST); |
| |
| return true; |
| } |
| |
| void testUpdateDepth(skiatest::Reporter *reporter) { |
| // set some depths (with picture enabled), then check them as they get set |
| |
| REPORTER_ASSERT(reporter, this->getZ() == 0); |
| this->translateZ(-10); |
| REPORTER_ASSERT(reporter, this->getZ() == -10); |
| |
| this->save(); |
| this->translateZ(20); |
| REPORTER_ASSERT(reporter, this->getZ() == 10); |
| |
| this->restore(); |
| REPORTER_ASSERT(reporter, this->getZ() == -10); |
| |
| this->translateZ(13.14f); |
| REPORTER_ASSERT(reporter, SkScalarNearlyEqual(this->getZ(), 3.14f)); |
| } |
| |
| private: |
| skiatest::Reporter* fReporter; |
| |
| typedef SkPaintFilterCanvas INHERITED; |
| }; |
| #endif |
| |
| namespace { |
| |
| class MockFilterCanvas : public SkPaintFilterCanvas { |
| public: |
| MockFilterCanvas(SkCanvas* canvas) : INHERITED(canvas) { } |
| |
| protected: |
| bool onFilter(SkTCopyOnFirstWrite<SkPaint>*, Type) const override { return true; } |
| |
| private: |
| typedef SkPaintFilterCanvas INHERITED; |
| }; |
| |
| } // anonymous namespace |
| |
| // SkPaintFilterCanvas should inherit the initial target canvas state. |
| DEF_TEST(PaintFilterCanvas_ConsistentState, reporter) { |
| SkCanvas canvas(100, 100); |
| canvas.clipRect(SkRect::MakeXYWH(12.7f, 12.7f, 75, 75)); |
| canvas.scale(0.5f, 0.75f); |
| |
| MockFilterCanvas filterCanvas(&canvas); |
| REPORTER_ASSERT(reporter, canvas.getTotalMatrix() == filterCanvas.getTotalMatrix()); |
| REPORTER_ASSERT(reporter, canvas.getLocalClipBounds() == filterCanvas.getLocalClipBounds()); |
| |
| filterCanvas.clipRect(SkRect::MakeXYWH(30.5f, 30.7f, 100, 100)); |
| filterCanvas.scale(0.75f, 0.5f); |
| REPORTER_ASSERT(reporter, canvas.getTotalMatrix() == filterCanvas.getTotalMatrix()); |
| REPORTER_ASSERT(reporter, filterCanvas.getLocalClipBounds().contains(canvas.getLocalClipBounds())); |
| |
| #ifdef SK_EXPERIMENTAL_SHADOWING |
| SkShadowTestCanvas* tCanvas = new SkShadowTestCanvas(100,100, reporter); |
| tCanvas->testUpdateDepth(reporter); |
| delete(tCanvas); |
| |
| SkPictureRecorder recorder; |
| SkShadowTestCanvas *tSCanvas = new SkShadowTestCanvas(100, 100, reporter); |
| SkCanvas *tPCanvas = recorder.beginRecording(SkRect::MakeIWH(100, 100)); |
| |
| tPCanvas->translateZ(SHADOW_TEST_CANVAS_CONST); |
| sk_sp<SkPicture> pic = recorder.finishRecordingAsPicture(); |
| tSCanvas->drawPicture(pic); |
| |
| delete(tSCanvas); |
| #endif |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #include "SkDeferredCanvas.h" |
| #include "SkDumpCanvas.h" |
| |
| DEF_TEST(DeferredCanvas, r) { |
| SkDebugfDumper dumper; |
| SkDumpCanvas dumpC(&dumper); |
| |
| SkDeferredCanvas canvas(&dumpC, SkDeferredCanvas::kEager); |
| |
| SkPaint paint; |
| // paint.setShader(SkShader::MakeColorShader(SK_ColorRED)); |
| |
| canvas.save(); |
| canvas.clipRect(SkRect::MakeWH(55, 55)); |
| canvas.translate(10, 20); |
| canvas.drawRect(SkRect::MakeWH(50, 50), paint); |
| canvas.restore(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #include "SkCanvasStack.h" |
| #include "SkNWayCanvas.h" |
| |
| // Subclass that takes a bool*, which it updates in its construct (true) and destructor (false) |
| // to allow the caller to know how long the object is alive. |
| class LifeLineCanvas : public SkCanvas { |
| bool* fLifeLine; |
| public: |
| LifeLineCanvas(int w, int h, bool* lifeline) : SkCanvas(w, h), fLifeLine(lifeline) { |
| *fLifeLine = true; |
| } |
| ~LifeLineCanvas() { |
| *fLifeLine = false; |
| } |
| }; |
| |
| // Check that NWayCanvas does NOT try to manage the lifetime of its sub-canvases |
| DEF_TEST(NWayCanvas, r) { |
| const int w = 10; |
| const int h = 10; |
| bool life[2]; |
| { |
| LifeLineCanvas c0(w, h, &life[0]); |
| REPORTER_ASSERT(r, life[0]); |
| } |
| REPORTER_ASSERT(r, !life[0]); |
| |
| |
| std::unique_ptr<SkCanvas> c0 = std::unique_ptr<SkCanvas>(new LifeLineCanvas(w, h, &life[0])); |
| std::unique_ptr<SkCanvas> c1 = std::unique_ptr<SkCanvas>(new LifeLineCanvas(w, h, &life[1])); |
| REPORTER_ASSERT(r, life[0]); |
| REPORTER_ASSERT(r, life[1]); |
| |
| { |
| SkNWayCanvas nway(w, h); |
| nway.addCanvas(c0.get()); |
| nway.addCanvas(c1.get()); |
| REPORTER_ASSERT(r, life[0]); |
| REPORTER_ASSERT(r, life[1]); |
| } |
| // Now assert that the death of the nway has NOT also killed the sub-canvases |
| REPORTER_ASSERT(r, life[0]); |
| REPORTER_ASSERT(r, life[1]); |
| } |
| |
| // Check that CanvasStack DOES manage the lifetime of its sub-canvases |
| DEF_TEST(CanvasStack, r) { |
| const int w = 10; |
| const int h = 10; |
| bool life[2]; |
| std::unique_ptr<SkCanvas> c0 = std::unique_ptr<SkCanvas>(new LifeLineCanvas(w, h, &life[0])); |
| std::unique_ptr<SkCanvas> c1 = std::unique_ptr<SkCanvas>(new LifeLineCanvas(w, h, &life[1])); |
| REPORTER_ASSERT(r, life[0]); |
| REPORTER_ASSERT(r, life[1]); |
| |
| { |
| SkCanvasStack stack(w, h); |
| stack.pushCanvas(std::move(c0), {0,0}); |
| stack.pushCanvas(std::move(c1), {0,0}); |
| REPORTER_ASSERT(r, life[0]); |
| REPORTER_ASSERT(r, life[1]); |
| } |
| // Now assert that the death of the canvasstack has also killed the sub-canvases |
| REPORTER_ASSERT(r, !life[0]); |
| REPORTER_ASSERT(r, !life[1]); |
| } |
| |
| static void test_cliptype(SkCanvas* canvas, skiatest::Reporter* r) { |
| REPORTER_ASSERT(r, !canvas->isClipEmpty()); |
| REPORTER_ASSERT(r, canvas->isClipRect()); |
| |
| canvas->save(); |
| canvas->clipRect({0, 0, 0, 0}); |
| REPORTER_ASSERT(r, canvas->isClipEmpty()); |
| REPORTER_ASSERT(r, !canvas->isClipRect()); |
| canvas->restore(); |
| |
| canvas->save(); |
| canvas->clipRect({2, 2, 6, 6}); |
| REPORTER_ASSERT(r, !canvas->isClipEmpty()); |
| REPORTER_ASSERT(r, canvas->isClipRect()); |
| canvas->restore(); |
| |
| canvas->save(); |
| canvas->clipRect({2, 2, 6, 6}, SkClipOp::kDifference); // punch a hole in the clip |
| REPORTER_ASSERT(r, !canvas->isClipEmpty()); |
| REPORTER_ASSERT(r, !canvas->isClipRect()); |
| canvas->restore(); |
| |
| REPORTER_ASSERT(r, !canvas->isClipEmpty()); |
| REPORTER_ASSERT(r, canvas->isClipRect()); |
| } |
| |
| DEF_TEST(CanvasClipType, r) { |
| // test rasterclip backend |
| test_cliptype(SkSurface::MakeRasterN32Premul(10, 10)->getCanvas(), r); |
| |
| // test clipstack backend |
| SkDynamicMemoryWStream stream; |
| test_cliptype(SkDocument::MakePDF(&stream)->beginPage(100, 100), r); |
| } |