1/* 2 * Copyright 2013 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#include "SkBitmap.h" 9#include "SkDecodingImageGenerator.h" 10#include "SkForceLinking.h" 11#include "SkImageDecoder.h" 12#include "SkPixelRef.h" 13#include "SkStream.h" 14#include "SkTemplates.h" 15#include "Test.h" 16 17__SK_FORCE_IMAGE_DECODER_LINKING; 18 19#define JPEG_TEST_WRITE_TO_FILE_FOR_DEBUGGING 0 // do not do this for 20 // normal unit testing. 21static unsigned char goodJpegImage[] = { 220xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 230x49, 0x46, 0x00, 0x01, 0x01, 0x01, 0x00, 0x8F, 240x00, 0x8F, 0x00, 0x00, 0xFF, 0xDB, 0x00, 0x43, 250x00, 0x05, 0x03, 0x04, 0x04, 0x04, 0x03, 0x05, 260x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x07, 270x0C, 0x08, 0x07, 0x07, 0x07, 0x07, 0x0F, 0x0B, 280x0B, 0x09, 0x0C, 0x11, 0x0F, 0x12, 0x12, 0x11, 290x0F, 0x11, 0x11, 0x13, 0x16, 0x1C, 0x17, 0x13, 300x14, 0x1A, 0x15, 0x11, 0x11, 0x18, 0x21, 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0x0C, 0xCE, 0x03, 0xEB, 4040x3B, 0xF8, 0x4F, 0xF2, 0xC3, 0x34, 0xC9, 0x70, 4050xC4, 0xC8, 0xF1, 0xB9, 0xD4, 0xE0, 0x19, 0x80, 4060xCC, 0xC9, 0x70, 0xC4, 0xC8, 0xF1, 0xB9, 0xD4, 4070xE1, 0x98, 0x0C, 0xCC, 0x97, 0x0C, 0x4C, 0x8F, 4080x1B, 0x9D, 0x4E, 0x03, 0xFF, 0xD9}; 409static const int goodJpegImageWidth = 128; 410static const int goodJpegImageHeight = 128; 411 412// https://code.google.com/p/android/issues/detail?id=42382 413// https://code.google.com/p/android/issues/detail?id=9064 414// https://code.google.com/p/skia/issues/detail?id=1649 415 416/** 417 This test will test the ability of the SkImageDecoder to deal with 418 Jpeg files which have been mangled somehow. We want to display as 419 much of the jpeg as possible. 420*/ 421DEF_TEST(Jpeg, reporter) { 422 size_t len = sizeof(goodJpegImage) / 2; 423 // I am explicitly not putting the entire image into the 424 // DecodeMemory. This simulates a network error. 425 426 SkBitmap bm8888; 427 bool imageDecodeSuccess = SkImageDecoder::DecodeMemory( 428 static_cast<void *>(goodJpegImage), len, &bm8888); 429 REPORTER_ASSERT(reporter, imageDecodeSuccess); 430 REPORTER_ASSERT(reporter, bm8888.width() == goodJpegImageWidth); 431 REPORTER_ASSERT(reporter, bm8888.height() == goodJpegImageHeight); 432 REPORTER_ASSERT(reporter, !(bm8888.empty())); 433 434 // Pick a few pixels and verify that their colors match the colors 435 // we expect (given the original image). 436 REPORTER_ASSERT(reporter, bm8888.getColor(7, 9) == 0xffffffff); 437 REPORTER_ASSERT(reporter, bm8888.getColor(28, 3) == 0xff000000); 438 REPORTER_ASSERT(reporter, bm8888.getColor(27, 34) == 0xffffffff); 439 REPORTER_ASSERT(reporter, bm8888.getColor(71, 18) == 0xff000000); 440 441#ifdef SK_BUILD_FOR_IOS // the iOS jpeg decoder fills to gray 442 REPORTER_ASSERT(reporter, bm8888.getColor(127, 127) == 0xff808080 443 || bm8888.getColor(127, 127) == SK_ColorWHITE); 444#else 445 // This is the fill color 446 REPORTER_ASSERT(reporter, bm8888.getColor(127, 127) == SK_ColorWHITE); 447#endif 448 449 #if JPEG_TEST_WRITE_TO_FILE_FOR_DEBUGGING 450 // Check to see that the resulting bitmap is nice 451 bool writeSuccess = (!(bm8888.empty())) && SkImageEncoder::EncodeFile( 452 "HalfOfAJpeg.png", bm8888, SkImageEncoder::kPNG_Type, 100); 453 SkASSERT(writeSuccess); 454 #endif 455} 456 457DEF_TEST(Jpeg_YUV, reporter) { 458 size_t len = sizeof(goodJpegImage); 459 SkMemoryStream* stream = SkNEW_ARGS(SkMemoryStream, (goodJpegImage, len)); 460 461 SkBitmap bitmap; 462 SkDecodingImageGenerator::Options opts; 463 bool pixelsInstalled = SkInstallDiscardablePixelRef( 464 SkDecodingImageGenerator::Create(stream, opts), &bitmap); 465 REPORTER_ASSERT(reporter, pixelsInstalled); 466 467 if (!pixelsInstalled) { 468 return; 469 } 470 471 SkPixelRef* pixelRef = bitmap.pixelRef(); 472 SkISize yuvSizes[3]; 473 bool sizesComputed = (NULL != pixelRef) && pixelRef->getYUV8Planes(yuvSizes, NULL, NULL, NULL); 474 REPORTER_ASSERT(reporter, sizesComputed); 475 476 if (!sizesComputed) { 477 return; 478 } 479 480 // Allocate the memory for YUV 481 size_t totalSize(0); 482 size_t sizes[3], rowBytes[3]; 483 const int32_t expected_sizes[] = {128, 64, 64}; 484 for (int i = 0; i < 3; ++i) { 485 rowBytes[i] = yuvSizes[i].fWidth; 486 totalSize += sizes[i] = rowBytes[i] * yuvSizes[i].fHeight; 487 REPORTER_ASSERT(reporter, rowBytes[i] == (size_t)expected_sizes[i]); 488 REPORTER_ASSERT(reporter, yuvSizes[i].fWidth == expected_sizes[i]); 489 REPORTER_ASSERT(reporter, yuvSizes[i].fHeight == expected_sizes[i]); 490 } 491 SkAutoMalloc storage(totalSize); 492 void* planes[3]; 493 planes[0] = storage.get(); 494 planes[1] = (uint8_t*)planes[0] + sizes[0]; 495 planes[2] = (uint8_t*)planes[1] + sizes[1]; 496 497 // Get the YUV planes 498 REPORTER_ASSERT(reporter, pixelRef->getYUV8Planes(yuvSizes, planes, rowBytes, NULL)); 499} 500