blob: abfcb540e56d1c4c31ad9079a53d5c623f43fc3e [file] [log] [blame]
* Copyright 2018 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "gm/gm.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
// The root cause of this bug was that when dual source blending was not supported and we made a
// copy of the destination to perform blending we would clip the copy bounds to the current clip.
// However, it is possible for anti-aliased that are fully contained by the clip in a geometric
// sense to actually draw outside the clip in pixel space because we don't consider aa bloat when
// determining if the draw is contained by the clip.
DEF_SIMPLE_GM(crbug_892988, canvas, 256, 256) {
SkPaint paint1;
canvas->drawRect(SkRect::MakeLTRB(11.5, 0.5, 245.5, 245.5), paint1);
canvas->clipRect(SkRect::MakeLTRB(12, 1, 244, 244), true);
SkPaint paint2;
// Use src mode with a non-opaque color to produce a blend that can't be handled with
// simple blend coefficients.
canvas->drawRect(SkRect::MakeLTRB(12, 1, 244, 244), paint2);