c7ad40f76f
Most of this is (obviously) not necessary to do, but once I started, I figured I'd just get it all. Tools (nanobench, DM, skiaserve), all GMs, benches, and unit tests, plus support code (command line parsing and config stuff). This is almost entirely mechanical. Bug: skia: Change-Id: I209500f8df8c5bd43f8298ff26440d1c4d7425fb Reviewed-on: https://skia-review.googlesource.com/131153 Reviewed-by: Mike Klein <mtklein@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/*
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* Copyright 2017 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 "SkTypes.h"
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#include "SkCanvas.h"
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#include "SkSurface.h"
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#include "GrContext.h"
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#include "GrTest.h"
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#include "Test.h"
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static SkBitmap read_pixels(sk_sp<SkSurface> surface) {
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SkBitmap bmp;
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bmp.allocN32Pixels(surface->width(), surface->height());
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if (!surface->readPixels(bmp, 0, 0)) {
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SkDebugf("readPixels failed\n");
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}
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return bmp;
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}
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static sk_sp<SkSurface> make_surface(GrContext* context) {
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SkImageInfo info = SkImageInfo::Make(50, 50, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
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return SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info, 4,
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kBottomLeft_GrSurfaceOrigin, nullptr);
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}
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// Tests that readPixels returns up-to-date results. Demonstrates a bug on Galaxy S6
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// (Mali T760), in MSAA mode.
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(skbug6653, reporter, ctxInfo) {
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GrContext* ctx = ctxInfo.grContext();
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SkRect rect = SkRect::MakeWH(50, 50);
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SkPaint paint;
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paint.setColor(SK_ColorWHITE);
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paint.setStrokeWidth(5);
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paint.setStyle(SkPaint::kStroke_Style);
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// The one device that fails this test (Galaxy S6) does so in a flaky fashion. Trying many
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// times makes it more likely to fail. Also, interacting with the phone (eg swiping between
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// different home screens) while the test is running makes it fail close to 100%.
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static const int kNumIterations = 50;
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for (int i = 0; i < kNumIterations; ++i) {
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auto s0 = make_surface(ctx);
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if (!s0) {
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// MSAA may not be supported
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return;
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}
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auto s1 = make_surface(ctx);
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s1->getCanvas()->clear(SK_ColorBLACK);
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s1->getCanvas()->drawOval(rect, paint);
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SkBitmap b1 = read_pixels(s1);
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s1 = nullptr;
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// The bug requires that all three of the following surfaces are cleared to the same color
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auto s2 = make_surface(ctx);
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s2->getCanvas()->clear(SK_ColorBLUE);
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SkBitmap b2 = read_pixels(s2);
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s2 = nullptr;
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auto s3 = make_surface(ctx);
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s3->getCanvas()->clear(SK_ColorBLUE);
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SkBitmap b3 = read_pixels(s3);
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s0->getCanvas()->drawBitmap(b3, 0, 0);
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s3 = nullptr;
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auto s4 = make_surface(ctx);
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s4->getCanvas()->clear(SK_ColorBLUE);
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s4->getCanvas()->drawOval(rect, paint);
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// When this fails, b4 will "succeed", but return an empty bitmap (containing just the
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// clear color). Regardless, b5 will contain the oval that was just drawn, so diffing the
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// two bitmaps tests for the failure case.
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SkBitmap b4 = read_pixels(s4);
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SkBitmap b5 = read_pixels(s4);
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bool match = true;
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for (int y = 0; y < b4.height() && match; ++y) {
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for (int x = 0; x < b4.width() && match; ++x) {
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uint32_t pixelA = *b4.getAddr32(x, y);
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uint32_t pixelB = *b5.getAddr32(x, y);
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if (pixelA != pixelB) {
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match = false;
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}
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}
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}
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REPORTER_ASSERT(reporter, match);
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}
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}
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