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Side by Side Diff: tests/JpegTest.cpp

Issue 656163002: Revert of JPEG YUV Decoding (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 6 years, 2 months ago
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1 /* 1 /*
2 * Copyright 2013 Google Inc. 2 * Copyright 2013 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #include "SkBitmap.h" 8 #include "SkBitmap.h"
9 #include "SkDecodingImageGenerator.h" 9 #include "SkData.h"
10 #include "SkForceLinking.h" 10 #include "SkForceLinking.h"
11 #include "SkImage.h"
11 #include "SkImageDecoder.h" 12 #include "SkImageDecoder.h"
12 #include "SkPixelRef.h"
13 #include "SkStream.h" 13 #include "SkStream.h"
14 #include "SkTemplates.h"
15 #include "Test.h" 14 #include "Test.h"
16 15
17 __SK_FORCE_IMAGE_DECODER_LINKING; 16 __SK_FORCE_IMAGE_DECODER_LINKING;
18 17
19 #define JPEG_TEST_WRITE_TO_FILE_FOR_DEBUGGING 0 // do not do this for 18 #define JPEG_TEST_WRITE_TO_FILE_FOR_DEBUGGING 0 // do not do this for
20 // normal unit testing. 19 // normal unit testing.
21 static unsigned char goodJpegImage[] = { 20 static unsigned char goodJpegImage[] = {
22 0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 21 0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46,
23 0x49, 0x46, 0x00, 0x01, 0x01, 0x01, 0x00, 0x8F, 22 0x49, 0x46, 0x00, 0x01, 0x01, 0x01, 0x00, 0x8F,
24 0x00, 0x8F, 0x00, 0x00, 0xFF, 0xDB, 0x00, 0x43, 23 0x00, 0x8F, 0x00, 0x00, 0xFF, 0xDB, 0x00, 0x43,
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446 REPORTER_ASSERT(reporter, bm8888.getColor(127, 127) == SK_ColorWHITE); 445 REPORTER_ASSERT(reporter, bm8888.getColor(127, 127) == SK_ColorWHITE);
447 #endif 446 #endif
448 447
449 #if JPEG_TEST_WRITE_TO_FILE_FOR_DEBUGGING 448 #if JPEG_TEST_WRITE_TO_FILE_FOR_DEBUGGING
450 // Check to see that the resulting bitmap is nice 449 // Check to see that the resulting bitmap is nice
451 bool writeSuccess = (!(bm8888.empty())) && SkImageEncoder::EncodeFile( 450 bool writeSuccess = (!(bm8888.empty())) && SkImageEncoder::EncodeFile(
452 "HalfOfAJpeg.png", bm8888, SkImageEncoder::kPNG_Type, 100); 451 "HalfOfAJpeg.png", bm8888, SkImageEncoder::kPNG_Type, 100);
453 SkASSERT(writeSuccess); 452 SkASSERT(writeSuccess);
454 #endif 453 #endif
455 } 454 }
456
457 DEF_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 }
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