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- // Copyright 2013 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "include/core/SkCanvas.h"
- #include "SkFlattenableSerialization.h"
- #include "include/core/SkImageFilter.h"
- #include "include/core/SkString.h"
- #include "src/core/SkOSFile.h"
- #include <stdio.h>
- static const int kBitmapSize = 24;
- static bool read_test_case(const char* filename, SkString* testdata) {
- FILE* file = sk_fopen(filename, kRead_SkFILE_Flag);
- if (!file) {
- SkDebugf("couldn't open file %s\n", filename);
- return false;
- }
- size_t len = sk_fgetsize(file);
- if (!len) {
- SkDebugf("couldn't read file %s\n", filename);
- return false;
- }
- testdata->resize(len);
- (void) fread(testdata->writable_str(), len, file);
- return true;
- }
- static void run_test_case(const SkString& testdata, const SkBitmap& bitmap,
- SkCanvas* canvas) {
- // This call shouldn't crash or cause ASAN to flag any memory issues
- // If nothing bad happens within this call, everything is fine
- sk_sp<SkImageFilter> flattenable = SkValidatingDeserializeImageFilter(testdata.c_str(),
- testdata.size());
- // Adding some info, but the test passed if we got here without any trouble
- if (flattenable != nullptr) {
- SkDebugf("Valid stream detected.\n");
- // Let's see if using the filters can cause any trouble...
- SkPaint paint;
- paint.setImageFilter(flattenable);
- canvas->save();
- canvas->clipRect(SkRect::MakeXYWH(
- 0, 0, SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)));
- // This call shouldn't crash or cause ASAN to flag any memory issues
- // If nothing bad happens within this call, everything is fine
- canvas->drawBitmap(bitmap, 0, 0, &paint);
- SkDebugf("Filter DAG rendered successfully.\n");
- canvas->restore();
- } else {
- SkDebugf("Invalid stream detected.\n");
- }
- }
- static bool read_and_run_test_case(const char* filename, const SkBitmap& bitmap,
- SkCanvas* canvas) {
- SkString testdata;
- SkDebugf("Test case: %s\n", filename);
- // read_test_case will print a useful error message if it fails.
- if (!read_test_case(filename, &testdata))
- return false;
- run_test_case(testdata, bitmap, canvas);
- return true;
- }
- int main(int argc, char** argv) {
- int ret = 0;
- SkBitmap bitmap;
- bitmap.allocN32Pixels(kBitmapSize, kBitmapSize);
- SkCanvas canvas(bitmap);
- canvas.clear(0x00000000);
- for (int i = 1; i < argc; i++)
- if (!read_and_run_test_case(argv[i], bitmap, &canvas))
- ret = 2;
- // Cluster-Fuzz likes "#EOF" as the last line of output to help distinguish
- // successful runs from crashes.
- SkDebugf("#EOF\n");
- return ret;
- }
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