| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Resources.h" |
| #include "SkBitmap.h" |
| #include "SkCodec.h" |
| #include "SkMD5.h" |
| #include "Test.h" |
| |
| static SkStreamAsset* resource(const char path[]) { |
| SkString fullPath = GetResourcePath(path); |
| return SkStream::NewFromFile(fullPath.c_str()); |
| } |
| |
| static void md5(const SkBitmap& bm, SkMD5::Digest* digest) { |
| SkAutoLockPixels autoLockPixels(bm); |
| SkASSERT(bm.getPixels()); |
| SkMD5 md5; |
| size_t rowLen = bm.info().bytesPerPixel() * bm.width(); |
| for (int y = 0; y < bm.height(); ++y) { |
| md5.update(static_cast<uint8_t*>(bm.getAddr(0, y)), rowLen); |
| } |
| md5.finish(*digest); |
| } |
| |
| static void check(skiatest::Reporter* r, |
| const char path[], |
| SkISize size, |
| bool canRewind) { |
| SkAutoTDelete<SkStream> stream(resource(path)); |
| if (!stream) { |
| SkDebugf("Missing resource '%s'\n", path); |
| return; |
| } |
| SkAutoTDelete<SkImageGenerator> gen( |
| SkCodec::NewFromStream(stream.detach())); |
| if (!gen) { |
| ERRORF(r, "Unable to decode '%s'", path); |
| return; |
| } |
| SkImageInfo info = gen->getInfo(); |
| REPORTER_ASSERT(r, info.dimensions() == size); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| SkAutoLockPixels autoLockPixels(bm); |
| SkImageGenerator::Result result = |
| gen->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL); |
| REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess); |
| |
| SkMD5::Digest digest1, digest2; |
| md5(bm, &digest1); |
| |
| bm.eraseColor(SK_ColorYELLOW); |
| |
| result = |
| gen->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL); |
| |
| // All ImageGenerators should support re-decoding the pixels. |
| // It is a known bug that some can not. |
| if (canRewind) { |
| REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess); |
| // verify that re-decoding gives the same result. |
| md5(bm, &digest2); |
| REPORTER_ASSERT(r, digest1 == digest2); |
| } |
| } |
| |
| DEF_TEST(Codec, r) { |
| // WBMP |
| check(r, "mandrill.wbmp", SkISize::Make(512, 512), true); |
| |
| // BMP |
| check(r, "randPixels.bmp", SkISize::Make(8, 8), true); |
| |
| // ICO |
| check(r, "color_wheel.ico", SkISize::Make(128, 128), true); |
| |
| // PNG |
| check(r, "arrow.png", SkISize::Make(187, 312), true); |
| check(r, "baby_tux.png", SkISize::Make(240, 246), true); |
| check(r, "color_wheel.png", SkISize::Make(128, 128), true); |
| check(r, "half-transparent-white-pixel.png", SkISize::Make(1, 1), true); |
| check(r, "mandrill_128.png", SkISize::Make(128, 128), true); |
| check(r, "mandrill_16.png", SkISize::Make(16, 16), true); |
| check(r, "mandrill_256.png", SkISize::Make(256, 256), true); |
| check(r, "mandrill_32.png", SkISize::Make(32, 32), true); |
| check(r, "mandrill_512.png", SkISize::Make(512, 512), true); |
| check(r, "mandrill_64.png", SkISize::Make(64, 64), true); |
| check(r, "plane.png", SkISize::Make(250, 126), true); |
| check(r, "randPixels.png", SkISize::Make(8, 8), true); |
| check(r, "yellow_rose.png", SkISize::Make(400, 301), true); |
| } |