| dml | f45796e | 2015-03-11 11:12:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | // The PNG decoder is not available on all platforms. |
| 9 | #if !defined(SK_BUILD_FOR_MAC) && \ |
| 10 | !defined(SK_BUILD_FOR_WIN) && \ |
| 11 | !defined(SK_BUILD_FOR_IOS) |
| 12 | |
| 13 | #include "SkBitmap.h" |
| 14 | #include "SkForceLinking.h" |
| 15 | #include "SkImageDecoder.h" |
| 16 | #include "Test.h" |
| 17 | |
| 18 | // A valid 1x1 indexed PNG. |
| 19 | unsigned char gPngData[] = { |
| 20 | 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, |
| 21 | 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, |
| 22 | 0x08, 0x03, 0x00, 0x00, 0x00, 0x28, 0xcb, 0x34, 0xbb, 0x00, 0x00, 0x00, |
| 23 | 0x09, 0x70, 0x48, 0x59, 0x73, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00, |
| 24 | 0x1c, 0x00, 0x0f, 0x01, 0xb9, 0x8f, 0x00, 0x00, 0x00, 0x06, 0x50, 0x4c, |
| 25 | 0x54, 0x45, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0xd2, 0x87, 0xef, 0x71, |
| 26 | 0x00, 0x00, 0x00, 0x13, 0x49, 0x44, 0x41, 0x54, 0x78, 0xda, 0xed, 0xfd, |
| 27 | 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0xf8, 0xaf, 0x16, 0x46, 0x00, |
| 28 | 0x02, 0x00, 0x01, 0x32, 0x60, 0xf7, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x49, |
| 29 | 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82 |
| 30 | }; |
| 31 | |
| 32 | // Attempt to decode an invalid PNG that has a palette. Mostly we're looking to |
| 33 | // make sure we don't leak memory since libpng uses setjmp for error handling so |
| 34 | // it's very easy to accidentally skip destructors when a failure happens. |
| 35 | DEF_TEST(InvalidIndexedPng, reporter) { |
| 36 | SkBitmap image; |
| 37 | SkForceLinking(false); |
| 38 | // Make our PNG invalid by changing a byte. |
| 39 | gPngData[sizeof(gPngData) - 1] = 1; |
| 40 | bool success = SkImageDecoder::DecodeMemory( |
| 41 | gPngData, sizeof(gPngData), &image, SkColorType::kUnknown_SkColorType, |
| 42 | SkImageDecoder::kDecodePixels_Mode); |
| 43 | REPORTER_ASSERT(reporter, !success); |
| 44 | } |
| 45 | |
| 46 | #endif // !(SK_BUILD_FOR_MAC||SK_BUILD_FOR_WIN||SK_BUILD_FOR_IOS) |