78acf96a67
BUG=skia:3440 R=rmistry@google.com, scroggo@google.com Committed: https://skia.googlesource.com/skia/+/493c1ce1cd406ef28683203146274154783452ce Review URL: https://codereview.chromium.org/948163002
45 lines
1.8 KiB
C++
45 lines
1.8 KiB
C++
/*
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* Copyright 2015 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 "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkForceLinking.h"
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#include "SkImageDecoder.h"
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#include "SkImageInfo.h"
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#include "SkSurface.h"
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#include "Test.h"
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// A 20x1 image with 8 bits per pixel and a palette size of 2. Pixel values are 255, 254... Run
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// this test with ASAN to make sure we don't try to access before/after any palette-sized buffers.
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unsigned char gPng[] = {
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0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d,
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0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x01,
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0x08, 0x03, 0x00, 0x00, 0x00, 0xe9, 0x4c, 0x7e, 0x17, 0x00, 0x00, 0x00,
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0x09, 0x70, 0x48, 0x59, 0x73, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00,
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0x1c, 0x00, 0x0f, 0x01, 0xb9, 0x8f, 0x00, 0x00, 0x00, 0x06, 0x50, 0x4c,
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0x54, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa5, 0x67, 0xb9, 0xcf,
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0x00, 0x00, 0x00, 0x20, 0x49, 0x44, 0x41, 0x54, 0x78, 0xda, 0xed, 0xfd,
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0x07, 0x01, 0x00, 0x20, 0x08, 0x00, 0x41, 0xbc, 0x5b, 0xe8, 0xdf, 0x97,
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0x99, 0xe3, 0x92, 0xa0, 0xf2, 0xdf, 0x3d, 0x7b, 0x0d, 0xda, 0x04, 0x1c,
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0x03, 0xad, 0x00, 0x38, 0x5c, 0x2e, 0xad, 0x12, 0x00, 0x00, 0x00, 0x00,
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0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82
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};
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DEF_TEST(IndexedPngOverflow, reporter) {
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SkBitmap image;
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SkForceLinking(false);
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bool success = SkImageDecoder::DecodeMemory(
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gPng, sizeof(gPng), &image, SkColorType::kUnknown_SkColorType,
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SkImageDecoder::kDecodePixels_Mode);
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REPORTER_ASSERT(reporter, success);
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SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(SkImageInfo::MakeN32Premul(20, 1)));
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SkCanvas* canvas = surface->getCanvas();
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SkRect destRect = SkRect::MakeXYWH(0, 0, 20, 1);
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canvas->drawBitmapRect(image, destRect, NULL);
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}
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