c0bd9f9fe5
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>
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/*
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* Copyright 2018 Google, LLC
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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 "include/codec/SkCodec.h"
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#include "include/core/SkBitmap.h"
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#include "include/core/SkData.h"
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bool FuzzIncrementalImageDecode(sk_sp<SkData> bytes) {
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auto codec = SkCodec::MakeFromData(bytes);
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if (!codec) {
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return false;
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}
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SkBitmap bm;
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if (!bm.tryAllocPixels(codec->getInfo())) {
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// May fail in memory-constrained fuzzing environments
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return false;
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}
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auto result = codec->startIncrementalDecode(bm.info(), bm.getPixels(), bm.rowBytes());
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if (result != SkCodec::kSuccess) {
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return false;
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}
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// Deliberately uninitialized to verify that incrementalDecode initializes it when it
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// returns kIncompleteInput or kErrorInInput.
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int rowsDecoded;
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result = codec->incrementalDecode(&rowsDecoded);
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switch (result) {
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case SkCodec::kIncompleteInput:
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case SkCodec::kErrorInInput:
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if (rowsDecoded < bm.height()) {
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void* dst = SkTAddOffset<void>(bm.getPixels(), rowsDecoded * bm.rowBytes());
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sk_bzero(dst, (bm.height() - rowsDecoded) * bm.rowBytes());
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}
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return true; // decoded a partial image
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case SkCodec::kSuccess:
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return true;
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default:
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return false;
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}
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}
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#if defined(IS_FUZZING_WITH_LIBFUZZER)
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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auto bytes = SkData::MakeWithoutCopy(data, size);
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FuzzIncrementalImageDecode(bytes);
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return 0;
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}
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#endif
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