skia2/gm/crbug_892988.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

32 lines
1.3 KiB
C++

/*
* 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/SkCanvas.h"
#include "include/core/SkPaint.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;
paint1.setStyle(SkPaint::kStroke_Style);
paint1.setStrokeWidth(1.f);
paint1.setAntiAlias(true);
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.
paint2.setColor(0xF0FFFFFF);
paint2.setBlendMode(SkBlendMode::kSrc);
paint2.setAntiAlias(true);
canvas->drawRect(SkRect::MakeLTRB(12, 1, 244, 244), paint2);
}