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 #include <stdio.h> 12 13 static const int kBitmapSize = 24; 14 15 static bool read_test_case(const char* filename, SkString* testdata) { 16 FILE* file = sk_fopen(filename, kRead_SkFILE_Flag); 17 if (!file) { 18 SkDebugf("couldn't open file %s\n", filename); 19 return false; 20 } 21 size_t len = sk_fgetsize(file); 22 if (!len) { 23 SkDebugf("couldn't read file %s\n", filename); 24 return false; 25 } 26 testdata->resize(len); 27 (void) fread(testdata->writable_str(), len, file); 28 return true; 29 } 30 31 static void run_test_case(const SkString& testdata, const SkBitmap& bitmap, 32 SkCanvas* canvas) { 33 // This call shouldn't crash or cause ASAN to flag any memory issues 34 // If nothing bad happens within this call, everything is fine 35 sk_sp<SkImageFilter> flattenable = SkValidatingDeserializeImageFilter(testdata.c_str(), 36 testdata.size()); 37 38 // Adding some info, but the test passed if we got here without any trouble 39 if (flattenable != nullptr) { 40 SkDebugf("Valid stream detected.\n"); 41 // Let's see if using the filters can cause any trouble... 42 SkPaint paint; 43 paint.setImageFilter(flattenable); 44 canvas->save(); 45 canvas->clipRect(SkRect::MakeXYWH( 46 0, 0, SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize))); 47 48 // This call shouldn't crash or cause ASAN to flag any memory issues 49 // If nothing bad happens within this call, everything is fine 50 canvas->drawBitmap(bitmap, 0, 0, &paint); 51 52 SkDebugf("Filter DAG rendered successfully.\n"); 53 canvas->restore(); 54 } else { 55 SkDebugf("Invalid stream detected.\n"); 56 } 57 } 58 59 static bool read_and_run_test_case(const char* filename, const SkBitmap& bitmap, 60 SkCanvas* canvas) { 61 SkString testdata; 62 SkDebugf("Test case: %s\n", filename); 63 // read_test_case will print a useful error message if it fails. 64 if (!read_test_case(filename, &testdata)) 65 return false; 66 run_test_case(testdata, bitmap, canvas); 67 return true; 68 } 69 70 int main(int argc, char** argv) { 71 int ret = 0; 72 SkBitmap bitmap; 73 bitmap.allocN32Pixels(kBitmapSize, kBitmapSize); 74 SkCanvas canvas(bitmap); 75 canvas.clear(0x00000000); 76 for (int i = 1; i < argc; i++) 77 if (!read_and_run_test_case(argv[i], bitmap, &canvas)) 78 ret = 2; 79 // Cluster-Fuzz likes "#EOF" as the last line of output to help distinguish 80 // successful runs from crashes. 81 SkDebugf("#EOF\n"); 82 return ret; 83 } 84
