| /* |
| * Copyright 2012 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/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkClipOp.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkColorType.h" |
| #include "include/core/SkDocument.h" |
| #include "include/core/SkFlattenable.h" |
| #include "include/core/SkImageFilter.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkPictureRecorder.h" |
| #include "include/core/SkPixmap.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkRegion.h" |
| #include "include/core/SkSamplingOptions.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkShader.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/core/SkVertices.h" |
| #include "include/effects/SkImageFilters.h" |
| #include "include/private/base/SkTemplates.h" |
| #include "include/private/base/SkMalloc.h" |
| #include "include/utils/SkNWayCanvas.h" |
| #include "include/utils/SkPaintFilterCanvas.h" |
| #include "src/core/SkBigPicture.h" |
| #include "src/core/SkImageFilter_Base.h" |
| #include "src/core/SkRecord.h" |
| #include "src/core/SkRecords.h" |
| #include "src/core/SkSpecialImage.h" |
| #include "src/utils/SkCanvasStack.h" |
| #include "tests/Test.h" |
| |
| #include <cstddef> |
| #include <initializer_list> |
| #include <memory> |
| #include <utility> |
| |
| using namespace skia_private; |
| |
| class SkPicture; |
| class SkReadBuffer; |
| |
| #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| #include "include/core/SkColorSpace.h" |
| #include "include/private/SkColorData.h" |
| #endif |
| |
| #ifdef SK_SUPPORT_PDF |
| #include "include/docs/SkPDFDocument.h" |
| #endif |
| |
| struct ClipRectVisitor { |
| skiatest::Reporter* r; |
| |
| template <typename T> |
| SkRect operator()(const T&) { |
| REPORTER_ASSERT(r, false, "unexpected record"); |
| return {1,1,0,0}; |
| } |
| |
| SkRect operator()(const SkRecords::ClipRect& op) { |
| return op.rect; |
| } |
| }; |
| |
| DEF_TEST(canvas_unsorted_clip, r) { |
| // Test that sorted and unsorted clip rects are forwarded |
| // to picture subclasses and/or devices sorted. |
| // |
| // We can't just test this with an SkCanvas on stack and |
| // SkCanvas::getLocalClipBounds(), as that only tests the raster device, |
| // which sorts these rects itself. |
| for (SkRect clip : {SkRect{0,0,5,5}, SkRect{5,5,0,0}}) { |
| SkPictureRecorder rec; |
| rec.beginRecording({0,0,10,10}) |
| ->clipRect(clip); |
| sk_sp<SkPicture> pic = rec.finishRecordingAsPicture(); |
| |
| auto bp = (const SkBigPicture*)pic.get(); |
| const SkRecord* record = bp->record(); |
| |
| REPORTER_ASSERT(r, record->count() == 1); |
| REPORTER_ASSERT(r, record->visit(0, ClipRectVisitor{r}) |
| .isSorted()); |
| } |
| } |
| |
| 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 }); |
| } |
| } |
| |
| #ifdef SK_SUPPORT_PDF |
| |
| // Will call proc with multiple styles of canvas (recording, raster, pdf) |
| template <typename F> static void multi_canvas_driver(int w, int h, F proc) { |
| proc(SkPictureRecorder().beginRecording(SkRect::MakeIWH(w, h))); |
| |
| SkNullWStream stream; |
| if (auto doc = SkPDF::MakeDocument(&stream)) { |
| proc(doc->beginPage(SkIntToScalar(w), SkIntToScalar(h))); |
| } |
| |
| proc(SkSurface::MakeRasterN32Premul(w, h, nullptr)->getCanvas()); |
| } |
| |
| 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); |
| } |
| |
| /** |
| * 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) { |
| multi_canvas_driver(gBaseRestrictedR.width(), gBaseRestrictedR.height(), |
| [reporter](SkCanvas* canvas) { test_restriction(reporter, canvas); }); |
| } |
| |
| DEF_TEST(canvas_empty_clip, reporter) { |
| multi_canvas_driver(50, 50, [reporter](SkCanvas* canvas) { |
| canvas->save(); |
| canvas->clipRect({0, 0, 20, 40 }); |
| REPORTER_ASSERT(reporter, !canvas->isClipEmpty()); |
| canvas->clipRect({30, 0, 50, 40 }); |
| REPORTER_ASSERT(reporter, canvas->isClipEmpty()); |
| }); |
| } |
| |
| #endif // SK_SUPPORT_PDF |
| |
| DEF_TEST(CanvasNewRasterTest, reporter) { |
| SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10); |
| const size_t minRowBytes = info.minRowBytes(); |
| const size_t size = info.computeByteSize(minRowBytes); |
| AutoTMalloc<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()); |
| } |
| |
| // unaligned rowBytes |
| REPORTER_ASSERT(reporter, nullptr == SkCanvas::MakeRasterDirect(info, baseAddr, |
| minRowBytes + 1)); |
| |
| // 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 not succeed with a zero-sized valid info |
| info = SkImageInfo::MakeN32Premul(0, 0); |
| canvas = SkCanvas::MakeRasterDirect(info, baseAddr, minRowBytes); |
| REPORTER_ASSERT(reporter, nullptr == canvas); |
| } |
| |
| static SkPath make_path_from_rect(SkRect r) { |
| SkPath path; |
| path.addRect(r); |
| return path; |
| } |
| |
| static SkRegion make_region_from_irect(SkIRect r) { |
| SkRegion region; |
| region.setRect(r); |
| return region; |
| } |
| |
| static SkBitmap make_n32_bitmap(int w, int h, SkColor c = SK_ColorWHITE) { |
| SkBitmap bm; |
| bm.allocN32Pixels(w, h); |
| bm.eraseColor(c); |
| return bm; |
| } |
| |
| // Constants used by test steps |
| static constexpr SkRect kRect = {0, 0, 2, 1}; |
| static constexpr SkColor kColor = 0x01020304; |
| static constexpr int kWidth = 2; |
| static constexpr int kHeight = 2; |
| |
| using CanvasTest = void (*)(SkCanvas*, skiatest::Reporter*); |
| |
| static CanvasTest kCanvasTests[] = { |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->translate(SkIntToScalar(1), SkIntToScalar(2)); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->scale(SkIntToScalar(1), SkIntToScalar(2)); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->rotate(SkIntToScalar(1)); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->skew(SkIntToScalar(1), SkIntToScalar(2)); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->concat(SkMatrix::Scale(2, 3)); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->setMatrix(SkMatrix::Scale(2, 3)); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->clipRect(kRect); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->clipPath(make_path_from_rect(SkRect{0, 0, 2, 1})); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->clipRegion(make_region_from_irect(SkIRect{0, 0, 2, 1})); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| c->clear(kColor); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| int saveCount = c->getSaveCount(); |
| c->save(); |
| c->translate(SkIntToScalar(1), SkIntToScalar(2)); |
| c->clipRegion(make_region_from_irect(SkIRect{0, 0, 2, 1})); |
| c->restore(); |
| REPORTER_ASSERT(r, c->getSaveCount() == saveCount); |
| REPORTER_ASSERT(r, c->getTotalMatrix().isIdentity()); |
| //REPORTER_ASSERT(reporter, c->getTotalClip() != kTestRegion); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| int saveCount = c->getSaveCount(); |
| c->saveLayer(nullptr, nullptr); |
| c->restore(); |
| REPORTER_ASSERT(r, c->getSaveCount() == saveCount); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| int saveCount = c->getSaveCount(); |
| c->saveLayer(&kRect, nullptr); |
| c->restore(); |
| REPORTER_ASSERT(r, c->getSaveCount() == saveCount); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| int saveCount = c->getSaveCount(); |
| SkPaint p; |
| c->saveLayer(nullptr, &p); |
| c->restore(); |
| REPORTER_ASSERT(r, c->getSaveCount() == saveCount); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| // 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. |
| c->clipRect(kRect); |
| c->clipRegion(make_region_from_irect(SkIRect{0, 0, 2, 1})); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| // exercise fix for http://code.google.com/p/skia/issues/detail?id=560 |
| // ('SkPathStroker::lineTo() fails for line with length SK_ScalarNearlyZero') |
| SkPaint paint; |
| paint.setStrokeWidth(SkIntToScalar(1)); |
| paint.setStyle(SkPaint::kStroke_Style); |
| SkPath path; |
| path.moveTo(SkPoint{ 0, 0 }); |
| path.lineTo(SkPoint{ 0, SK_ScalarNearlyZero }); |
| path.lineTo(SkPoint{ SkIntToScalar(1), 0 }); |
| path.lineTo(SkPoint{ SkIntToScalar(1), SK_ScalarNearlyZero/2 }); |
| // test nearly zero length path |
| c->drawPath(path, paint); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| SkPictureRecorder recorder; |
| SkCanvas* testCanvas = recorder.beginRecording(SkIntToScalar(kWidth), |
| SkIntToScalar(kHeight)); |
| testCanvas->scale(SkIntToScalar(2), SkIntToScalar(1)); |
| testCanvas->clipRect(kRect); |
| testCanvas->drawRect(kRect, SkPaint()); |
| c->drawPicture(recorder.finishRecordingAsPicture()); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| int baseSaveCount = c->getSaveCount(); |
| int n = c->save(); |
| REPORTER_ASSERT(r, baseSaveCount == n); |
| REPORTER_ASSERT(r, baseSaveCount + 1 == c->getSaveCount()); |
| c->save(); |
| c->save(); |
| REPORTER_ASSERT(r, baseSaveCount + 3 == c->getSaveCount()); |
| c->restoreToCount(baseSaveCount + 1); |
| REPORTER_ASSERT(r, baseSaveCount + 1 == c->getSaveCount()); |
| |
| // should this pin to 1, or be a no-op, or crash? |
| c->restoreToCount(0); |
| REPORTER_ASSERT(r, 1 == c->getSaveCount()); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| // 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. |
| c->resetMatrix(); |
| c->rotate(SkIntToScalar(30)); |
| c->save(); |
| c->translate(SkIntToScalar(2), SkIntToScalar(1)); |
| c->save(); |
| c->scale(SkIntToScalar(3), SkIntToScalar(3)); |
| SkPaint paint; |
| paint.setColor(0xFFFFFFFF); |
| c->drawPaint(paint); |
| c->restore(); |
| c->restore(); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| // 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. |
| c->resetMatrix(); |
| c->rotate(SkIntToScalar(30)); |
| c->save(); |
| c->translate(SkIntToScalar(2), SkIntToScalar(1)); |
| c->save(); |
| c->scale(SkIntToScalar(3), SkIntToScalar(3)); |
| c->drawRect(kRect, SkPaint()); |
| c->flush(); |
| c->restore(); |
| c->restore(); |
| }, |
| [](SkCanvas* c, skiatest::Reporter* r) { |
| 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; |
| SkBitmap bitmap(make_n32_bitmap(kWidth, kHeight, 0x05060708)); |
| paint.setShader(bitmap.makeShader(SkSamplingOptions())); |
| c->drawVertices( |
| SkVertices::MakeCopy(SkVertices::kTriangleFan_VertexMode, 4, pts, pts, nullptr), |
| SkBlendMode::kModulate, paint); |
| } |
| }; |
| |
| DEF_TEST(Canvas_bitmap, reporter) { |
| for (const CanvasTest& test : kCanvasTests) { |
| SkBitmap referenceStore = make_n32_bitmap(kWidth, kHeight); |
| SkCanvas referenceCanvas(referenceStore); |
| test(&referenceCanvas, reporter); |
| } |
| } |
| |
| #ifdef SK_SUPPORT_PDF |
| DEF_TEST(Canvas_pdf, reporter) { |
| for (const CanvasTest& test : kCanvasTests) { |
| SkNullWStream outStream; |
| if (auto doc = SkPDF::MakeDocument(&outStream)) { |
| SkCanvas* canvas = doc->beginPage(SkIntToScalar(kWidth), |
| SkIntToScalar(kHeight)); |
| REPORTER_ASSERT(reporter, canvas); |
| test(canvas, reporter); |
| } |
| } |
| } |
| #endif |
| |
| 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(); |
| } |
| |
| namespace { |
| |
| class MockFilterCanvas : public SkPaintFilterCanvas { |
| public: |
| MockFilterCanvas(SkCanvas* canvas) : INHERITED(canvas) { } |
| |
| protected: |
| bool onFilter(SkPaint&) const override { return true; } |
| |
| private: |
| using INHERITED = SkPaintFilterCanvas; |
| }; |
| |
| } // 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())); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| namespace { |
| |
| // 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() override { |
| *fLifeLine = false; |
| } |
| }; |
| |
| } // namespace |
| |
| // 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); |
| |
| #ifdef SK_SUPPORT_PDF |
| // test clipstack backend |
| SkDynamicMemoryWStream stream; |
| if (auto doc = SkPDF::MakeDocument(&stream)) { |
| test_cliptype(doc->beginPage(100, 100), r); |
| } |
| #endif |
| } |
| |
| #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| DEF_TEST(Canvas_LegacyColorBehavior, r) { |
| sk_sp<SkColorSpace> cs = SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB, |
| SkNamedGamut::kAdobeRGB); |
| |
| // Make a Adobe RGB bitmap. |
| SkBitmap bitmap; |
| bitmap.allocPixels(SkImageInfo::MakeN32(1, 1, kOpaque_SkAlphaType, cs)); |
| bitmap.eraseColor(0xFF000000); |
| |
| // Wrap it in a legacy canvas. Test that the canvas behaves like a legacy canvas. |
| SkCanvas canvas(bitmap, SkCanvas::ColorBehavior::kLegacy); |
| REPORTER_ASSERT(r, !canvas.imageInfo().colorSpace()); |
| SkPaint p; |
| p.setColor(SK_ColorRED); |
| canvas.drawIRect(SkIRect::MakeWH(1, 1), p); |
| REPORTER_ASSERT(r, SK_ColorRED == SkSwizzle_BGRA_to_PMColor(*bitmap.getAddr32(0, 0))); |
| } |
| #endif |
| |
| namespace { |
| |
| class ZeroBoundsImageFilter : public SkImageFilter_Base { |
| public: |
| static sk_sp<SkImageFilter> Make() { return sk_sp<SkImageFilter>(new ZeroBoundsImageFilter); } |
| |
| protected: |
| sk_sp<SkSpecialImage> onFilterImage(const Context&, SkIPoint*) const override { |
| return nullptr; |
| } |
| SkIRect onFilterNodeBounds(const SkIRect&, const SkMatrix&, |
| MapDirection, const SkIRect* inputRect) const override { |
| return SkIRect::MakeEmpty(); |
| } |
| |
| private: |
| SK_FLATTENABLE_HOOKS(ZeroBoundsImageFilter) |
| |
| ZeroBoundsImageFilter() : INHERITED(nullptr, 0, nullptr) {} |
| |
| using INHERITED = SkImageFilter_Base; |
| }; |
| |
| sk_sp<SkFlattenable> ZeroBoundsImageFilter::CreateProc(SkReadBuffer& buffer) { |
| SkDEBUGFAIL("Should never get here"); |
| return nullptr; |
| } |
| |
| } // anonymous namespace |
| |
| DEF_TEST(Canvas_SaveLayerWithNullBoundsAndZeroBoundsImageFilter, r) { |
| SkCanvas canvas(10, 10); |
| SkPaint p; |
| p.setImageFilter(ZeroBoundsImageFilter::Make()); |
| // This should not fail any assert. |
| canvas.saveLayer(nullptr, &p); |
| REPORTER_ASSERT(r, canvas.getDeviceClipBounds().isEmpty()); |
| canvas.restore(); |
| } |
| |
| // Test that we don't crash/assert when building a canvas with degenerate coordintes |
| // (esp. big ones, that might invoke tiling). |
| DEF_TEST(Canvas_degenerate_dimension, reporter) { |
| // Need a paint that will sneak us past the quickReject in SkCanvas, so we can test the |
| // raster code further downstream. |
| SkPaint paint; |
| paint.setImageFilter(SkImageFilters::Shader(SkShaders::Color(SK_ColorBLACK), nullptr)); |
| REPORTER_ASSERT(reporter, !paint.canComputeFastBounds()); |
| |
| const int big = 100 * 1024; // big enough to definitely trigger tiling |
| const SkISize sizes[] {SkISize{0, big}, {big, 0}, {0, 0}}; |
| for (SkISize size : sizes) { |
| SkBitmap bm; |
| bm.setInfo(SkImageInfo::MakeN32Premul(size.width(), size.height())); |
| SkCanvas canvas(bm); |
| canvas.drawRect({0, 0, 100, 90*1024}, paint); |
| } |
| } |
| |
| DEF_TEST(Canvas_ClippedOutImageFilter, reporter) { |
| SkCanvas canvas(100, 100); |
| |
| SkPaint p; |
| p.setColor(SK_ColorGREEN); |
| p.setImageFilter(SkImageFilters::Blur(3.0f, 3.0f, nullptr, nullptr)); |
| |
| SkRect blurredRect = SkRect::MakeXYWH(60, 10, 30, 30); |
| |
| SkMatrix invM; |
| invM.setRotate(-45); |
| invM.mapRect(&blurredRect); |
| |
| const SkRect clipRect = SkRect::MakeXYWH(0, 50, 50, 50); |
| |
| canvas.clipRect(clipRect); |
| |
| canvas.rotate(45); |
| const SkMatrix preCTM = canvas.getTotalMatrix(); |
| canvas.drawRect(blurredRect, p); |
| const SkMatrix postCTM = canvas.getTotalMatrix(); |
| REPORTER_ASSERT(reporter, preCTM == postCTM); |
| } |
| |
| DEF_TEST(canvas_savelayer_destructor, reporter) { |
| // What should happen in our destructor if we have unbalanced saveLayers? |
| |
| SkPMColor pixels[16]; |
| const SkImageInfo info = SkImageInfo::MakeN32Premul(4, 4); |
| SkPixmap pm(info, pixels, 4 * sizeof(SkPMColor)); |
| |
| // check all of the pixel values in pm |
| auto check_pixels = [&](SkColor expected) { |
| const SkPMColor pmc = SkPreMultiplyColor(expected); |
| for (int y = 0; y < pm.info().height(); ++y) { |
| for (int x = 0; x < pm.info().width(); ++x) { |
| if (*pm.addr32(x, y) != pmc) { |
| ERRORF(reporter, "check_pixels_failed"); |
| return; |
| } |
| } |
| } |
| }; |
| |
| auto do_test = [&](int saveCount, int restoreCount) { |
| SkASSERT(restoreCount <= saveCount); |
| |
| auto surf = SkSurface::MakeRasterDirect(pm); |
| auto canvas = surf->getCanvas(); |
| |
| canvas->clear(SK_ColorRED); |
| check_pixels(SK_ColorRED); |
| |
| for (int i = 0; i < saveCount; ++i) { |
| canvas->saveLayer(nullptr, nullptr); |
| } |
| |
| canvas->clear(SK_ColorBLUE); |
| // so far, we still expect to see the red, since the blue was drawn in a layer |
| check_pixels(SK_ColorRED); |
| |
| for (int i = 0; i < restoreCount; ++i) { |
| canvas->restore(); |
| } |
| // by returning, we are implicitly deleting the surface, and its associated canvas |
| }; |
| |
| do_test(1, 1); |
| // since we called restore, we expect to see now see blue |
| check_pixels(SK_ColorBLUE); |
| |
| // Now repeat that, but delete the canvas before we restore it |
| do_test(1, 0); |
| // We don't blit the unbalanced saveLayers, so we expect to see red (not the layer's blue) |
| check_pixels(SK_ColorRED); |
| |
| // Finally, test with multiple unbalanced saveLayers. This led to a crash in an earlier |
| // implementation (crbug.com/1238731) |
| do_test(2, 0); |
| check_pixels(SK_ColorRED); |
| } |