diff options
author | fmalita <fmalita@chromium.org> | 2015-01-15 06:01:23 -0800 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2015-01-15 06:01:23 -0800 |
commit | 1a178ca6dd2ff7f62c684f7d0ee94e54fc31c91b (patch) | |
tree | 296cb27db22dd48f8595a73efdd849a8a10a05b0 /tests | |
parent | 6e87913ab991f0aa41e51647314b5cfbda581273 (diff) |
Use device-space stroke width for SkDraw::drawRect() quick-reject
The stroke width needs to be CTM-adjusted when applied to device space
rects.
BUG=skia:3313
R=reed@google.com
Review URL: https://codereview.chromium.org/801353008
Diffstat (limited to 'tests')
-rw-r--r-- | tests/RectTest.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/tests/RectTest.cpp b/tests/RectTest.cpp new file mode 100644 index 0000000000..be77a87406 --- /dev/null +++ b/tests/RectTest.cpp @@ -0,0 +1,51 @@ +/* + * Copyright 2015 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkBitmap.h" +#include "SkCanvas.h" +#include "SkRect.h" +#include "Test.h" + +static bool has_green_pixels(const SkBitmap& bm) { + for (int j = 0; j < bm.height(); ++j) { + for (int i = 0; i < bm.width(); ++i) { + if (SkColorGetG(bm.getColor(i, j))) { + return true; + } + } + } + + return false; +} + +static void test_stroke_width_clipping(skiatest::Reporter* reporter) { + SkBitmap bm; + bm.allocN32Pixels(100, 10); + bm.eraseColor(SK_ColorTRANSPARENT); + + SkCanvas canvas(bm); + SkPaint paint; + paint.setStyle(SkPaint::kStroke_Style); + paint.setStrokeWidth(10); + paint.setColor(0xff00ff00); + + // clip out the left half of our canvas + canvas.clipRect(SkRect::MakeXYWH(51, 0, 49, 100)); + + // no stroke bleed should be visible + canvas.drawRect(SkRect::MakeWH(44, 100), paint); + REPORTER_ASSERT(reporter, !has_green_pixels(bm)); + + // right stroke edge should bleed into the visible area + canvas.scale(2, 2); + canvas.drawRect(SkRect::MakeWH(22, 50), paint); + REPORTER_ASSERT(reporter, has_green_pixels(bm)); +} + +DEF_TEST(Rect, reporter) { + test_stroke_width_clipping(reporter); +} |