926e193e5d
Bug: skia:7507 Change-Id: I45ff36f96951f63795fdc09fdd8e3083865f6eda Reviewed-on: https://skia-review.googlesource.com/101461 Commit-Queue: Mike Reed <reed@google.com> Reviewed-by: Mike Klein <mtklein@chromium.org>
116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/*
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* Copyright 2015 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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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkPath.h"
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#include "SkRect.h"
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#include "SkRectPriv.h"
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#include "Test.h"
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static bool has_green_pixels(const SkBitmap& bm) {
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for (int j = 0; j < bm.height(); ++j) {
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for (int i = 0; i < bm.width(); ++i) {
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if (SkColorGetG(bm.getColor(i, j))) {
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return true;
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}
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}
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}
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return false;
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}
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static void test_stroke_width_clipping(skiatest::Reporter* reporter) {
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SkBitmap bm;
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bm.allocN32Pixels(100, 10);
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bm.eraseColor(SK_ColorTRANSPARENT);
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SkCanvas canvas(bm);
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(10);
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paint.setColor(0xff00ff00);
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// clip out the left half of our canvas
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canvas.clipRect(SkRect::MakeXYWH(51, 0, 49, 100));
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// no stroke bleed should be visible
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canvas.drawRect(SkRect::MakeWH(44, 100), paint);
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REPORTER_ASSERT(reporter, !has_green_pixels(bm));
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// right stroke edge should bleed into the visible area
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canvas.scale(2, 2);
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canvas.drawRect(SkRect::MakeWH(22, 50), paint);
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REPORTER_ASSERT(reporter, has_green_pixels(bm));
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}
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static void test_skbug4406(skiatest::Reporter* reporter) {
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SkBitmap bm;
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bm.allocN32Pixels(10, 10);
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bm.eraseColor(SK_ColorTRANSPARENT);
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SkCanvas canvas(bm);
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const SkRect r = { 1.5f, 1, 3.5f, 3 };
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// draw filled green rect first
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SkPaint paint;
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paint.setStyle(SkPaint::kFill_Style);
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paint.setColor(0xff00ff00);
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paint.setStrokeWidth(1);
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paint.setAntiAlias(true);
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canvas.drawRect(r, paint);
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// paint black with stroke rect (that asserts in bug 4406)
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// over the filled rect, it should cover it
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setColor(0xff000000);
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paint.setStrokeWidth(1);
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canvas.drawRect(r, paint);
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REPORTER_ASSERT(reporter, !has_green_pixels(bm));
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// do it again with thinner stroke
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paint.setStyle(SkPaint::kFill_Style);
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paint.setColor(0xff00ff00);
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paint.setStrokeWidth(1);
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paint.setAntiAlias(true);
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canvas.drawRect(r, paint);
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// paint black with stroke rect (that asserts in bug 4406)
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// over the filled rect, it doesnt cover it completelly with thinner stroke
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setColor(0xff000000);
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paint.setStrokeWidth(0.99f);
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canvas.drawRect(r, paint);
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REPORTER_ASSERT(reporter, has_green_pixels(bm));
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}
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DEF_TEST(Rect, reporter) {
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test_stroke_width_clipping(reporter);
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test_skbug4406(reporter);
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}
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DEF_TEST(Rect_grow, reporter) {
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test_stroke_width_clipping(reporter);
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test_skbug4406(reporter);
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}
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DEF_TEST(Rect_path_nan, reporter) {
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SkRect r = { 0, 0, SK_ScalarNaN, 100 };
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SkPath p;
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p.addRect(r);
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// path normally just jams its bounds to be r, but it must notice that r is non-finite
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REPORTER_ASSERT(reporter, !p.isFinite());
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}
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DEF_TEST(Rect_largest, reporter) {
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REPORTER_ASSERT(reporter, !SkRectPriv::MakeILarge().isEmpty());
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REPORTER_ASSERT(reporter, SkRectPriv::MakeILargestInverted().isEmpty());
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REPORTER_ASSERT(reporter, !SkRectPriv::MakeLargest().isEmpty());
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REPORTER_ASSERT(reporter, !SkRectPriv::MakeLargeS32().isEmpty());
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REPORTER_ASSERT(reporter, SkRectPriv::MakeLargestInverted().isEmpty());
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}
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