1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "SkCanvas.h" 6 #include "SkFlattenableSerialization.h" 7 #include "SkImageFilter.h" 8 #include "SkOSFile.h" 9 #include "SkString.h" 10 11 static const int kBitmapSize = 24; 12 13 static bool read_test_case(const char* filename, SkString* testdata) { 14 FILE* file = sk_fopen(filename, kRead_SkFILE_Flag); 15 if (!file) { 16 SkDebugf("couldn't open file %s\n", filename); 17 return false; 18 } 19 size_t len = sk_fgetsize(file); 20 if (!len) { 21 SkDebugf("couldn't read file %s\n", filename); 22 return false; 23 } 24 testdata->resize(len); 25 (void) sk_fread(testdata->writable_str(), len, file); 26 return true; 27 } 28 29 static void run_test_case(const SkString& testdata, const SkBitmap& bitmap, 30 SkCanvas* canvas) { 31 // This call shouldn't crash or cause ASAN to flag any memory issues 32 // If nothing bad happens within this call, everything is fine 33 SkFlattenable* flattenable = SkValidatingDeserializeFlattenable( 34 testdata.c_str(), testdata.size(), SkImageFilter::GetFlattenableType()); 35 36 // Adding some info, but the test passed if we got here without any trouble 37 if (flattenable != nullptr) { 38 SkDebugf("Valid stream detected.\n"); 39 // Let's see if using the filters can cause any trouble... 40 SkPaint paint; 41 paint.setImageFilter(static_cast<SkImageFilter*>(flattenable))->unref(); 42 canvas->save(); 43 canvas->clipRect(SkRect::MakeXYWH( 44 0, 0, SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize))); 45 46 // This call shouldn't crash or cause ASAN to flag any memory issues 47 // If nothing bad happens within this call, everything is fine 48 canvas->drawBitmap(bitmap, 0, 0, &paint); 49 50 SkDebugf("Filter DAG rendered successfully.\n"); 51 canvas->restore(); 52 } else { 53 SkDebugf("Invalid stream detected.\n"); 54 } 55 } 56 57 static bool read_and_run_test_case(const char* filename, const SkBitmap& bitmap, 58 SkCanvas* canvas) { 59 SkString testdata; 60 SkDebugf("Test case: %s\n", filename); 61 // read_test_case will print a useful error message if it fails. 62 if (!read_test_case(filename, &testdata)) 63 return false; 64 run_test_case(testdata, bitmap, canvas); 65 return true; 66 } 67 68 int main(int argc, char** argv) { 69 int ret = 0; 70 SkBitmap bitmap; 71 bitmap.allocN32Pixels(kBitmapSize, kBitmapSize); 72 SkCanvas canvas(bitmap); 73 canvas.clear(0x00000000); 74 for (int i = 1; i < argc; i++) 75 if (!read_and_run_test_case(argv[i], bitmap, &canvas)) 76 ret = 2; 77 // Cluster-Fuzz likes "#EOF" as the last line of output to help distinguish 78 // successful runs from crashes. 79 SkDebugf("#EOF\n"); 80 return ret; 81 } 82 83
