blob: 2d3acbb3a08c25f6aee38cbac081bcf6f0c8e232 [file] [log] [blame]
* Copyright 2020 Google LLC
* 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/SkColor.h"
#include "include/core/SkMatrix.h"
DEF_SIMPLE_GM(crbug_10141204, canvas, 512, 512) {
// While the coordinates are giant and the transform is not axis-aligned, this should
// fill the screen left side with solid blue. This has an extra zoom factor compared to the
// canvas JS in order to more visibly highlight the numerical issues that caused the bug.
// (The original transform would have completely filled the screen with solid blue, so the bug
// manifested as an improper discard on occasion. With the new scale factor, the bug manifests
// as either an improper fullscreen clear or an improper discard, instead).
SkScalar extraZoom = exp(-2.3f);
canvas->scale(extraZoom, extraZoom);
canvas->scale(2.f, 2.f);
-0.0005550860255665798f, -0.0030798374421905717f, -0.014111959825129805f,
-0.07569627776417084f, 232.00000000000017f, 39.999999999999936f,
0.f, 0.f, 1.f));
canvas->translate(-3040103.0493857153f, 337502.1103282161f);
canvas->scale(9783.93962050256f, -9783.93962050256f);
SkPaint paint;
canvas->drawRect(SkRect::MakeWH(512, 512), paint);