887cdf1128
BUG=skia:6366 Change-Id: I3c0bf96cce6d32c9b8d12d16a772aaa6f18981aa Reviewed-on: https://skia-review.googlesource.com/11062 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Mike Reed <reed@google.com>
908 lines
33 KiB
C++
908 lines
33 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Description:
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* This test defines a series of elementatry test steps that perform
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* a single or a small group of canvas API calls. Each test step is
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* used in several test cases that verify that different types of SkCanvas
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* flavors and derivatives pass it and yield consistent behavior. The
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* test cases analyse results that are queryable through the API. They do
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* not look at rendering results.
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*
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* Adding test stepss:
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* The general pattern for creating a new test step is to write a test
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* function of the form:
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*
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* static void MyTestStepFunction(SkCanvas* canvas,
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* const TestData& d,
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* skiatest::Reporter* reporter,
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* CanvasTestStep* testStep)
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* {
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* canvas->someCanvasAPImethod();
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* (...)
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* REPORTER_ASSERT_MESSAGE(reporter, (...), \
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* testStep->assertMessage());
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* }
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*
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* The definition of the test step function should be followed by an
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* invocation of the TEST_STEP macro, which generates a class and
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* instance for the test step:
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*
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* TEST_STEP(MyTestStep, MyTestStepFunction)
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*
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* There are also short hand macros for defining simple test steps
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* in a single line of code. A simple test step is a one that is made
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* of a single canvas API call.
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*
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* SIMPLE_TEST_STEP(MytestStep, someCanvasAPIMethod());
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*
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* There is another macro called SIMPLE_TEST_STEP_WITH_ASSERT that
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* works the same way as SIMPLE_TEST_STEP, and additionally verifies
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* that the invoked method returns a non-zero value.
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*/
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkClipStack.h"
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#include "SkDocument.h"
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#include "SkMatrix.h"
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#include "SkNWayCanvas.h"
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#include "SkPaint.h"
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#include "SkPaintFilterCanvas.h"
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#include "SkPath.h"
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#include "SkPicture.h"
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#include "SkPictureRecord.h"
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#include "SkPictureRecorder.h"
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#include "SkRasterClip.h"
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#include "SkRect.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkStream.h"
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#include "SkSurface.h"
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#include "SkTemplates.h"
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#include "SkTDArray.h"
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#include "SkVertices.h"
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#include "Test.h"
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DEF_TEST(canvas_clipbounds, reporter) {
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SkCanvas canvas(10, 10);
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SkIRect irect, irect2;
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SkRect rect, rect2;
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irect = canvas.getDeviceClipBounds();
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REPORTER_ASSERT(reporter, irect == SkIRect::MakeWH(10, 10));
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REPORTER_ASSERT(reporter, canvas.getDeviceClipBounds(&irect2));
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REPORTER_ASSERT(reporter, irect == irect2);
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// local bounds are always too big today -- can we trim them?
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rect = canvas.getLocalClipBounds();
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REPORTER_ASSERT(reporter, rect.contains(SkRect::MakeWH(10, 10)));
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REPORTER_ASSERT(reporter, canvas.getLocalClipBounds(&rect2));
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REPORTER_ASSERT(reporter, rect == rect2);
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canvas.clipRect(SkRect::MakeEmpty());
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irect = canvas.getDeviceClipBounds();
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REPORTER_ASSERT(reporter, irect == SkIRect::MakeEmpty());
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REPORTER_ASSERT(reporter, !canvas.getDeviceClipBounds(&irect2));
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REPORTER_ASSERT(reporter, irect == irect2);
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rect = canvas.getLocalClipBounds();
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REPORTER_ASSERT(reporter, rect == SkRect::MakeEmpty());
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REPORTER_ASSERT(reporter, !canvas.getLocalClipBounds(&rect2));
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REPORTER_ASSERT(reporter, rect == rect2);
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// Test for wacky sizes that we (historically) have guarded against
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{
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SkCanvas c(-10, -20);
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REPORTER_ASSERT(reporter, c.getBaseLayerSize() == SkISize::MakeEmpty());
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SkPictureRecorder().beginRecording({ 5, 5, 4, 4 });
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}
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}
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// Will call proc with multiple styles of canse (recording, raster, pdf)
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//
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template <typename F> static void multi_canvas_driver(int w, int h, F proc) {
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proc(SkPictureRecorder().beginRecording(SkRect::MakeIWH(w, h)));
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SkNullWStream stream;
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proc(SkDocument::MakePDF(&stream)->beginPage(SkIntToScalar(w), SkIntToScalar(h)));
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proc(SkSurface::MakeRasterN32Premul(w, h, nullptr)->getCanvas());
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}
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const SkIRect gBaseRestrictedR = { 0, 0, 10, 10 };
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static void test_restriction(skiatest::Reporter* reporter, SkCanvas* canvas) {
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REPORTER_ASSERT(reporter, canvas->getDeviceClipBounds() == gBaseRestrictedR);
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const SkIRect restrictionR = { 2, 2, 8, 8 };
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canvas->androidFramework_setDeviceClipRestriction(restrictionR);
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REPORTER_ASSERT(reporter, canvas->getDeviceClipBounds() == restrictionR);
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const SkIRect clipR = { 4, 4, 6, 6 };
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canvas->clipRect(SkRect::Make(clipR), SkClipOp::kIntersect);
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REPORTER_ASSERT(reporter, canvas->getDeviceClipBounds() == clipR);
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// now test that expanding clipops can't exceed the restriction
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const SkClipOp expanders[] = {
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SkClipOp::kUnion_deprecated,
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SkClipOp::kXOR_deprecated,
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SkClipOp::kReverseDifference_deprecated,
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SkClipOp::kReplace_deprecated,
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};
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const SkRect expandR = { 0, 0, 5, 9 };
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SkASSERT(!SkRect::Make(restrictionR).contains(expandR));
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for (SkClipOp op : expanders) {
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canvas->save();
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canvas->clipRect(expandR, op);
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REPORTER_ASSERT(reporter, gBaseRestrictedR.contains(canvas->getDeviceClipBounds()));
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canvas->restore();
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}
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}
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/**
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* Clip restriction logic exists in the canvas itself, and in various kinds of devices.
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*
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* This test explicitly tries to exercise that variety:
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* - picture : empty device but exercises canvas itself
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* - pdf : uses SkClipStack in its device (as does SVG and GPU)
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* - raster : uses SkRasterClip in its device
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*/
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DEF_TEST(canvas_clip_restriction, reporter) {
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multi_canvas_driver(gBaseRestrictedR.width(), gBaseRestrictedR.height(),
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[reporter](SkCanvas* canvas) { test_restriction(reporter, canvas); });
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}
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DEF_TEST(canvas_empty_clip, reporter) {
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multi_canvas_driver(50, 50, [reporter](SkCanvas* canvas) {
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canvas->save();
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canvas->clipRect({0, 0, 20, 40 });
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REPORTER_ASSERT(reporter, !canvas->isClipEmpty());
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canvas->clipRect({30, 0, 50, 40 });
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REPORTER_ASSERT(reporter, canvas->isClipEmpty());
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});
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}
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static const int kWidth = 2, kHeight = 2;
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static void createBitmap(SkBitmap* bm, SkColor color) {
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bm->allocN32Pixels(kWidth, kHeight);
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bm->eraseColor(color);
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}
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///////////////////////////////////////////////////////////////////////////////
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// Constants used by test steps
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const SkPoint kTestPoints[] = {
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{SkIntToScalar(0), SkIntToScalar(0)},
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{SkIntToScalar(2), SkIntToScalar(1)},
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{SkIntToScalar(0), SkIntToScalar(2)}
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};
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const SkPoint kTestPoints2[] = {
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{ SkIntToScalar(0), SkIntToScalar(1) },
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{ SkIntToScalar(1), SkIntToScalar(1) },
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{ SkIntToScalar(2), SkIntToScalar(1) },
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{ SkIntToScalar(3), SkIntToScalar(1) },
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{ SkIntToScalar(4), SkIntToScalar(1) },
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{ SkIntToScalar(5), SkIntToScalar(1) },
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{ SkIntToScalar(6), SkIntToScalar(1) },
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{ SkIntToScalar(7), SkIntToScalar(1) },
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{ SkIntToScalar(8), SkIntToScalar(1) },
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{ SkIntToScalar(9), SkIntToScalar(1) },
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{ SkIntToScalar(10), SkIntToScalar(1) }
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};
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struct TestData {
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public:
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TestData()
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: fRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
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SkIntToScalar(2), SkIntToScalar(1)))
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, fMatrix(TestMatrix())
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, fPath(TestPath())
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, fNearlyZeroLengthPath(TestNearlyZeroLengthPath())
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, fIRect(SkIRect::MakeXYWH(0, 0, 2, 1))
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, fRegion(TestRegion())
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, fColor(0x01020304)
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, fPoints(kTestPoints)
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, fPointCount(3)
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, fWidth(2)
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, fHeight(2)
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, fText("Hello World")
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, fPoints2(kTestPoints2)
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, fBitmap(TestBitmap())
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{ }
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SkRect fRect;
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SkMatrix fMatrix;
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SkPath fPath;
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SkPath fNearlyZeroLengthPath;
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SkIRect fIRect;
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SkRegion fRegion;
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SkColor fColor;
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SkPaint fPaint;
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const SkPoint* fPoints;
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size_t fPointCount;
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int fWidth;
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int fHeight;
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SkString fText;
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const SkPoint* fPoints2;
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SkBitmap fBitmap;
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private:
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static SkMatrix TestMatrix() {
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SkMatrix matrix;
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matrix.reset();
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matrix.setScale(SkIntToScalar(2), SkIntToScalar(3));
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return matrix;
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}
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static SkPath TestPath() {
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SkPath path;
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path.addRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
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SkIntToScalar(2), SkIntToScalar(1)));
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return path;
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}
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static SkPath TestNearlyZeroLengthPath() {
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SkPath path;
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SkPoint pt1 = { 0, 0 };
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SkPoint pt2 = { 0, SK_ScalarNearlyZero };
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SkPoint pt3 = { SkIntToScalar(1), 0 };
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SkPoint pt4 = { SkIntToScalar(1), SK_ScalarNearlyZero/2 };
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path.moveTo(pt1);
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path.lineTo(pt2);
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path.lineTo(pt3);
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path.lineTo(pt4);
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return path;
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}
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static SkRegion TestRegion() {
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SkRegion region;
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SkIRect rect = SkIRect::MakeXYWH(0, 0, 2, 1);
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region.setRect(rect);
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return region;
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}
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static SkBitmap TestBitmap() {
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SkBitmap bitmap;
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createBitmap(&bitmap, 0x05060708);
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return bitmap;
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}
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};
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class Canvas2CanvasClipVisitor : public SkCanvas::ClipVisitor {
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public:
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Canvas2CanvasClipVisitor(SkCanvas* target) : fTarget(target) {}
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void clipRect(const SkRect& r, SkClipOp op, bool aa) override {
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fTarget->clipRect(r, op, aa);
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}
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void clipRRect(const SkRRect& r, SkClipOp op, bool aa) override {
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fTarget->clipRRect(r, op, aa);
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}
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void clipPath(const SkPath& p, SkClipOp op, bool aa) override {
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fTarget->clipPath(p, op, aa);
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}
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private:
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SkCanvas* fTarget;
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};
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// Format strings that describe the test context. The %s token is where
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// the name of the test step is inserted. The context is required for
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// disambiguating the error in the case of failures that are reported in
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// functions that are called multiple times in different contexts (test
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// cases and test steps).
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static const char* const kDefaultAssertMessageFormat = "%s";
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static const char* const kCanvasDrawAssertMessageFormat =
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"Drawing test step %s with SkCanvas";
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static const char* const kPdfAssertMessageFormat =
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"PDF sanity check failed %s";
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class CanvasTestStep;
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static SkTDArray<CanvasTestStep*>& testStepArray() {
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static SkTDArray<CanvasTestStep*> theTests;
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return theTests;
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}
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class CanvasTestStep {
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public:
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CanvasTestStep(bool fEnablePdfTesting = true) {
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*testStepArray().append() = this;
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fAssertMessageFormat = kDefaultAssertMessageFormat;
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this->fEnablePdfTesting = fEnablePdfTesting;
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}
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virtual ~CanvasTestStep() { }
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virtual void draw(SkCanvas*, const TestData&, skiatest::Reporter*) = 0;
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virtual const char* name() const = 0;
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const char* assertMessage() {
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fAssertMessage.printf(fAssertMessageFormat, name());
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return fAssertMessage.c_str();
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}
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void setAssertMessageFormat(const char* format) {
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fAssertMessageFormat = format;
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}
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bool enablePdfTesting() { return fEnablePdfTesting; }
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private:
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SkString fAssertMessage;
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const char* fAssertMessageFormat;
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bool fEnablePdfTesting;
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};
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///////////////////////////////////////////////////////////////////////////////
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// Macros for defining test steps
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#define TEST_STEP(NAME, FUNCTION) \
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class NAME##_TestStep : public CanvasTestStep{ \
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public: \
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virtual void draw(SkCanvas* canvas, const TestData& d, \
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skiatest::Reporter* reporter) { \
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FUNCTION (canvas, d, reporter, this); \
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} \
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virtual const char* name() const {return #NAME ;} \
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}; \
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static NAME##_TestStep NAME##_TestStepInstance;
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#define TEST_STEP_NO_PDF(NAME, FUNCTION) \
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class NAME##_TestStep : public CanvasTestStep{ \
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public: \
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NAME##_TestStep() : CanvasTestStep(false) {} \
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virtual void draw(SkCanvas* canvas, const TestData& d, \
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skiatest::Reporter* reporter) { \
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FUNCTION (canvas, d, reporter, this); \
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} \
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virtual const char* name() const {return #NAME ;} \
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}; \
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static NAME##_TestStep NAME##_TestStepInstance;
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#define SIMPLE_TEST_STEP(NAME, CALL) \
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static void NAME##TestStep(SkCanvas* canvas, const TestData& d, \
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skiatest::Reporter*, CanvasTestStep*) { \
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canvas-> CALL ; \
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} \
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TEST_STEP(NAME, NAME##TestStep )
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#define SIMPLE_TEST_STEP_WITH_ASSERT(NAME, CALL) \
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static void NAME##TestStep(SkCanvas* canvas, const TestData& d, \
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skiatest::Reporter*, CanvasTestStep* testStep) { \
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REPORTER_ASSERT_MESSAGE(reporter, canvas-> CALL , \
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testStep->assertMessage()); \
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} \
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TEST_STEP(NAME, NAME##TestStep )
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///////////////////////////////////////////////////////////////////////////////
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// Basic test steps for most virtual methods in SkCanvas that draw or affect
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// the state of the canvas.
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SIMPLE_TEST_STEP(Translate, translate(SkIntToScalar(1), SkIntToScalar(2)));
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SIMPLE_TEST_STEP(Scale, scale(SkIntToScalar(1), SkIntToScalar(2)));
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SIMPLE_TEST_STEP(Rotate, rotate(SkIntToScalar(1)));
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SIMPLE_TEST_STEP(Skew, skew(SkIntToScalar(1), SkIntToScalar(2)));
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SIMPLE_TEST_STEP(Concat, concat(d.fMatrix));
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SIMPLE_TEST_STEP(SetMatrix, setMatrix(d.fMatrix));
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SIMPLE_TEST_STEP(ClipRect, clipRect(d.fRect));
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SIMPLE_TEST_STEP(ClipPath, clipPath(d.fPath));
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SIMPLE_TEST_STEP(ClipRegion, clipRegion(d.fRegion, kReplace_SkClipOp));
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SIMPLE_TEST_STEP(Clear, clear(d.fColor));
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///////////////////////////////////////////////////////////////////////////////
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// Complex test steps
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static void SaveMatrixClipStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter* reporter, CanvasTestStep* testStep) {
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int saveCount = canvas->getSaveCount();
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canvas->save();
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canvas->translate(SkIntToScalar(1), SkIntToScalar(2));
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canvas->clipRegion(d.fRegion);
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canvas->restore();
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REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount,
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testStep->assertMessage());
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REPORTER_ASSERT_MESSAGE(reporter, canvas->getTotalMatrix().isIdentity(),
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testStep->assertMessage());
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// REPORTER_ASSERT_MESSAGE(reporter, canvas->getTotalClip() != kTestRegion, testStep->assertMessage());
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}
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TEST_STEP(SaveMatrixClip, SaveMatrixClipStep);
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static void SaveLayerStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter* reporter, CanvasTestStep* testStep) {
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int saveCount = canvas->getSaveCount();
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canvas->saveLayer(nullptr, nullptr);
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canvas->restore();
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REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount,
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testStep->assertMessage());
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}
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TEST_STEP(SaveLayer, SaveLayerStep);
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static void BoundedSaveLayerStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter* reporter, CanvasTestStep* testStep) {
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int saveCount = canvas->getSaveCount();
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canvas->saveLayer(&d.fRect, nullptr);
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canvas->restore();
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REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount,
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testStep->assertMessage());
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}
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TEST_STEP(BoundedSaveLayer, BoundedSaveLayerStep);
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static void PaintSaveLayerStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter* reporter, CanvasTestStep* testStep) {
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int saveCount = canvas->getSaveCount();
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canvas->saveLayer(nullptr, &d.fPaint);
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canvas->restore();
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REPORTER_ASSERT_MESSAGE(reporter, canvas->getSaveCount() == saveCount,
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testStep->assertMessage());
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}
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TEST_STEP(PaintSaveLayer, PaintSaveLayerStep);
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static void TwoClipOpsStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter*, CanvasTestStep*) {
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// This test exercises a functionality in SkPicture that leads to the
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// recording of restore offset placeholders. This test will trigger an
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// assertion at playback time if the placeholders are not properly
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// filled when the recording ends.
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canvas->clipRect(d.fRect);
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canvas->clipRegion(d.fRegion);
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}
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TEST_STEP(TwoClipOps, TwoClipOpsStep);
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// exercise fix for http://code.google.com/p/skia/issues/detail?id=560
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// ('SkPathStroker::lineTo() fails for line with length SK_ScalarNearlyZero')
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static void DrawNearlyZeroLengthPathTestStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter*, CanvasTestStep*) {
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SkPaint paint;
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paint.setStrokeWidth(SkIntToScalar(1));
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paint.setStyle(SkPaint::kStroke_Style);
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canvas->drawPath(d.fNearlyZeroLengthPath, paint);
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}
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TEST_STEP(DrawNearlyZeroLengthPath, DrawNearlyZeroLengthPathTestStep);
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static void DrawVerticesShaderTestStep(SkCanvas* canvas, const TestData& d,
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skiatest::Reporter*, CanvasTestStep*) {
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SkPoint pts[4];
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|
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(SkVertices::MakeCopy(SkVertices::kTriangleFan_VertexMode, 4, pts, pts,
|
|
nullptr),
|
|
SkBlendMode::kModulate, 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 "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);
|
|
}
|