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Unified Diff: tests/CodexTest.cpp

Issue 1897973004: Rename CodexTest.cpp to CodecTest.cpp (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 4 years, 8 months ago
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Index: tests/CodexTest.cpp
diff --git a/tests/CodexTest.cpp b/tests/CodexTest.cpp
deleted file mode 100644
index bdb5e7792e983c686a3de82a4d4064da76846d73..0000000000000000000000000000000000000000
--- a/tests/CodexTest.cpp
+++ /dev/null
@@ -1,974 +0,0 @@
-/*
- * 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 "SkAndroidCodec.h"
-#include "SkBitmap.h"
-#include "SkCodec.h"
-#include "SkCodecImageGenerator.h"
-#include "SkData.h"
-#include "SkFrontBufferedStream.h"
-#include "SkMD5.h"
-#include "SkRandom.h"
-#include "SkStream.h"
-#include "SkStreamPriv.h"
-#include "SkPngChunkReader.h"
-#include "Test.h"
-
-#include "png.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);
-}
-
-/**
- * Compute the digest for bm and compare it to a known good digest.
- * @param r Reporter to assert that bm's digest matches goodDigest.
- * @param goodDigest The known good digest to compare to.
- * @param bm The bitmap to test.
- */
-static void compare_to_good_digest(skiatest::Reporter* r, const SkMD5::Digest& goodDigest,
- const SkBitmap& bm) {
- SkMD5::Digest digest;
- md5(bm, &digest);
- REPORTER_ASSERT(r, digest == goodDigest);
-}
-
-/**
- * Test decoding an SkCodec to a particular SkImageInfo.
- *
- * Calling getPixels(info) should return expectedResult, and if goodDigest is non nullptr,
- * the resulting decode should match.
- */
-template<typename Codec>
-static void test_info(skiatest::Reporter* r, Codec* codec, const SkImageInfo& info,
- SkCodec::Result expectedResult, const SkMD5::Digest* goodDigest) {
- SkBitmap bm;
- bm.allocPixels(info);
- SkAutoLockPixels autoLockPixels(bm);
-
- SkCodec::Result result = codec->getPixels(info, bm.getPixels(), bm.rowBytes());
- REPORTER_ASSERT(r, result == expectedResult);
-
- if (goodDigest) {
- compare_to_good_digest(r, *goodDigest, bm);
- }
-}
-
-SkIRect generate_random_subset(SkRandom* rand, int w, int h) {
- SkIRect rect;
- do {
- rect.fLeft = rand->nextRangeU(0, w);
- rect.fTop = rand->nextRangeU(0, h);
- rect.fRight = rand->nextRangeU(0, w);
- rect.fBottom = rand->nextRangeU(0, h);
- rect.sort();
- } while (rect.isEmpty());
- return rect;
-}
-
-template<typename Codec>
-static void test_codec(skiatest::Reporter* r, Codec* codec, SkBitmap& bm, const SkImageInfo& info,
- const SkISize& size, SkCodec::Result expectedResult, SkMD5::Digest* digest,
- const SkMD5::Digest* goodDigest) {
-
- REPORTER_ASSERT(r, info.dimensions() == size);
- bm.allocPixels(info);
- SkAutoLockPixels autoLockPixels(bm);
-
- SkCodec::Result result = codec->getPixels(info, bm.getPixels(), bm.rowBytes());
- REPORTER_ASSERT(r, result == expectedResult);
-
- md5(bm, digest);
- if (goodDigest) {
- REPORTER_ASSERT(r, *digest == *goodDigest);
- }
-
- {
- // Test decoding to 565
- SkImageInfo info565 = info.makeColorType(kRGB_565_SkColorType);
- SkCodec::Result expected565 = info.alphaType() == kOpaque_SkAlphaType ?
- expectedResult : SkCodec::kInvalidConversion;
- test_info(r, codec, info565, expected565, nullptr);
- }
-
- // Verify that re-decoding gives the same result. It is interesting to check this after
- // a decode to 565, since choosing to decode to 565 may result in some of the decode
- // options being modified. These options should return to their defaults on another
- // decode to kN32, so the new digest should match the old digest.
- test_info(r, codec, info, expectedResult, digest);
-
- {
- // Check alpha type conversions
- if (info.alphaType() == kOpaque_SkAlphaType) {
- test_info(r, codec, info.makeAlphaType(kUnpremul_SkAlphaType),
- expectedResult, digest);
- test_info(r, codec, info.makeAlphaType(kPremul_SkAlphaType),
- expectedResult, digest);
- } else {
- // Decoding to opaque should fail
- test_info(r, codec, info.makeAlphaType(kOpaque_SkAlphaType),
- SkCodec::kInvalidConversion, nullptr);
- SkAlphaType otherAt = info.alphaType();
- if (kPremul_SkAlphaType == otherAt) {
- otherAt = kUnpremul_SkAlphaType;
- } else {
- otherAt = kPremul_SkAlphaType;
- }
- // The other non-opaque alpha type should always succeed, but not match.
- test_info(r, codec, info.makeAlphaType(otherAt), expectedResult, nullptr);
- }
- }
-}
-
-static bool supports_partial_scanlines(const char path[]) {
- static const char* const exts[] = {
- "jpg", "jpeg", "png", "webp"
- "JPG", "JPEG", "PNG", "WEBP"
- };
-
- for (uint32_t i = 0; i < SK_ARRAY_COUNT(exts); i++) {
- if (SkStrEndsWith(path, exts[i])) {
- return true;
- }
- }
- return false;
-}
-
-static void check(skiatest::Reporter* r,
- const char path[],
- SkISize size,
- bool supportsScanlineDecoding,
- bool supportsSubsetDecoding,
- bool supportsIncomplete = true) {
-
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
-
- SkAutoTDelete<SkCodec> codec(nullptr);
- bool isIncomplete = supportsIncomplete;
- if (isIncomplete) {
- size_t size = stream->getLength();
- SkAutoTUnref<SkData> data((SkData::NewFromStream(stream, 2 * size / 3)));
- codec.reset(SkCodec::NewFromData(data));
- } else {
- codec.reset(SkCodec::NewFromStream(stream.release()));
- }
- if (!codec) {
- ERRORF(r, "Unable to decode '%s'", path);
- return;
- }
-
- // Test full image decodes with SkCodec
- SkMD5::Digest codecDigest;
- const SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType);
- SkBitmap bm;
- SkCodec::Result expectedResult = isIncomplete ? SkCodec::kIncompleteInput : SkCodec::kSuccess;
- test_codec(r, codec.get(), bm, info, size, expectedResult, &codecDigest, nullptr);
-
- // Scanline decoding follows.
- // Need to call startScanlineDecode() first.
- REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0)
- == 0);
- REPORTER_ASSERT(r, codec->skipScanlines(1)
- == 0);
-
- const SkCodec::Result startResult = codec->startScanlineDecode(info);
- if (supportsScanlineDecoding) {
- bm.eraseColor(SK_ColorYELLOW);
-
- REPORTER_ASSERT(r, startResult == SkCodec::kSuccess);
-
- for (int y = 0; y < info.height(); y++) {
- const int lines = codec->getScanlines(bm.getAddr(0, y), 1, 0);
- if (!isIncomplete) {
- REPORTER_ASSERT(r, 1 == lines);
- }
- }
- // verify that scanline decoding gives the same result.
- if (SkCodec::kTopDown_SkScanlineOrder == codec->getScanlineOrder()) {
- compare_to_good_digest(r, codecDigest, bm);
- }
-
- // Cannot continue to decode scanlines beyond the end
- REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0)
- == 0);
-
- // Interrupting a scanline decode with a full decode starts from
- // scratch
- REPORTER_ASSERT(r, codec->startScanlineDecode(info) == SkCodec::kSuccess);
- const int lines = codec->getScanlines(bm.getAddr(0, 0), 1, 0);
- if (!isIncomplete) {
- REPORTER_ASSERT(r, lines == 1);
- }
- REPORTER_ASSERT(r, codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes())
- == expectedResult);
- REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0)
- == 0);
- REPORTER_ASSERT(r, codec->skipScanlines(1)
- == 0);
-
- // Test partial scanline decodes
- if (supports_partial_scanlines(path) && info.width() >= 3) {
- SkCodec::Options options;
- int width = info.width();
- int height = info.height();
- SkIRect subset = SkIRect::MakeXYWH(2 * (width / 3), 0, width / 3, height);
- options.fSubset = &subset;
-
- const SkCodec::Result partialStartResult = codec->startScanlineDecode(info, &options,
- nullptr, nullptr);
- REPORTER_ASSERT(r, partialStartResult == SkCodec::kSuccess);
-
- for (int y = 0; y < height; y++) {
- const int lines = codec->getScanlines(bm.getAddr(0, y), 1, 0);
- if (!isIncomplete) {
- REPORTER_ASSERT(r, 1 == lines);
- }
- }
- }
- } else {
- REPORTER_ASSERT(r, startResult == SkCodec::kUnimplemented);
- }
-
- // The rest of this function tests decoding subsets, and will decode an arbitrary number of
- // random subsets.
- // Do not attempt to decode subsets of an image of only once pixel, since there is no
- // meaningful subset.
- if (size.width() * size.height() == 1) {
- return;
- }
-
- SkRandom rand;
- SkIRect subset;
- SkCodec::Options opts;
- opts.fSubset = &subset;
- for (int i = 0; i < 5; i++) {
- subset = generate_random_subset(&rand, size.width(), size.height());
- SkASSERT(!subset.isEmpty());
- const bool supported = codec->getValidSubset(&subset);
- REPORTER_ASSERT(r, supported == supportsSubsetDecoding);
-
- SkImageInfo subsetInfo = info.makeWH(subset.width(), subset.height());
- SkBitmap bm;
- bm.allocPixels(subsetInfo);
- const SkCodec::Result result = codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes(),
- &opts, nullptr, nullptr);
-
- if (supportsSubsetDecoding) {
- REPORTER_ASSERT(r, result == expectedResult);
- // Webp is the only codec that supports subsets, and it will have modified the subset
- // to have even left/top.
- REPORTER_ASSERT(r, SkIsAlign2(subset.fLeft) && SkIsAlign2(subset.fTop));
- } else {
- // No subsets will work.
- REPORTER_ASSERT(r, result == SkCodec::kUnimplemented);
- }
- }
-
- // SkAndroidCodec tests
- if (supportsScanlineDecoding || supportsSubsetDecoding) {
-
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
-
- SkAutoTDelete<SkAndroidCodec> androidCodec(nullptr);
- if (isIncomplete) {
- size_t size = stream->getLength();
- SkAutoTUnref<SkData> data((SkData::NewFromStream(stream, 2 * size / 3)));
- androidCodec.reset(SkAndroidCodec::NewFromData(data));
- } else {
- androidCodec.reset(SkAndroidCodec::NewFromStream(stream.release()));
- }
- if (!androidCodec) {
- ERRORF(r, "Unable to decode '%s'", path);
- return;
- }
-
- SkBitmap bm;
- SkMD5::Digest androidCodecDigest;
- test_codec(r, androidCodec.get(), bm, info, size, expectedResult, &androidCodecDigest,
- &codecDigest);
- }
-
- if (!isIncomplete) {
- // Test SkCodecImageGenerator
- SkAutoTDelete<SkStream> stream(resource(path));
- SkAutoTUnref<SkData> fullData(SkData::NewFromStream(stream, stream->getLength()));
- SkAutoTDelete<SkImageGenerator> gen(SkCodecImageGenerator::NewFromEncodedCodec(fullData));
- SkBitmap bm;
- bm.allocPixels(info);
- SkAutoLockPixels autoLockPixels(bm);
- REPORTER_ASSERT(r, gen->getPixels(info, bm.getPixels(), bm.rowBytes()));
- compare_to_good_digest(r, codecDigest, bm);
-
- // Test using SkFrontBufferedStream, as Android does
- SkStream* bufferedStream = SkFrontBufferedStream::Create(new SkMemoryStream(fullData),
- SkCodec::MinBufferedBytesNeeded());
- REPORTER_ASSERT(r, bufferedStream);
- codec.reset(SkCodec::NewFromStream(bufferedStream));
- REPORTER_ASSERT(r, codec);
- if (codec) {
- test_info(r, codec.get(), info, SkCodec::kSuccess, &codecDigest);
- }
- }
-
- // If we've just tested incomplete decodes, let's run the same test again on full decodes.
- if (isIncomplete) {
- check(r, path, size, supportsScanlineDecoding, supportsSubsetDecoding, false);
- }
-}
-
-DEF_TEST(Codec, r) {
- // WBMP
- check(r, "mandrill.wbmp", SkISize::Make(512, 512), true, false);
-
- // WEBP
- check(r, "baby_tux.webp", SkISize::Make(386, 395), false, true);
- check(r, "color_wheel.webp", SkISize::Make(128, 128), false, true);
- check(r, "yellow_rose.webp", SkISize::Make(400, 301), false, true);
-
- // BMP
- check(r, "randPixels.bmp", SkISize::Make(8, 8), true, false);
- check(r, "rle.bmp", SkISize::Make(320, 240), true, false);
-
- // ICO
- // FIXME: We are not ready to test incomplete ICOs
- // These two tests examine interestingly different behavior:
- // Decodes an embedded BMP image
- check(r, "color_wheel.ico", SkISize::Make(128, 128), true, false, false);
- // Decodes an embedded PNG image
- check(r, "google_chrome.ico", SkISize::Make(256, 256), true, false, false);
-
- // GIF
- // FIXME: We are not ready to test incomplete GIFs
- check(r, "box.gif", SkISize::Make(200, 55), true, false, false);
- check(r, "color_wheel.gif", SkISize::Make(128, 128), true, false, false);
- // randPixels.gif is too small to test incomplete
- check(r, "randPixels.gif", SkISize::Make(8, 8), true, false, false);
-
- // JPG
- check(r, "CMYK.jpg", SkISize::Make(642, 516), true, false);
- check(r, "color_wheel.jpg", SkISize::Make(128, 128), true, false);
- // grayscale.jpg is too small to test incomplete
- check(r, "grayscale.jpg", SkISize::Make(128, 128), true, false, false);
- check(r, "mandrill_512_q075.jpg", SkISize::Make(512, 512), true, false);
- // randPixels.jpg is too small to test incomplete
- check(r, "randPixels.jpg", SkISize::Make(8, 8), true, false, false);
-
- // PNG
- check(r, "arrow.png", SkISize::Make(187, 312), true, false, false);
- check(r, "baby_tux.png", SkISize::Make(240, 246), true, false, false);
- check(r, "color_wheel.png", SkISize::Make(128, 128), true, false, false);
- check(r, "half-transparent-white-pixel.png", SkISize::Make(1, 1), true, false, false);
- check(r, "mandrill_128.png", SkISize::Make(128, 128), true, false, false);
- check(r, "mandrill_16.png", SkISize::Make(16, 16), true, false, false);
- check(r, "mandrill_256.png", SkISize::Make(256, 256), true, false, false);
- check(r, "mandrill_32.png", SkISize::Make(32, 32), true, false, false);
- check(r, "mandrill_512.png", SkISize::Make(512, 512), true, false, false);
- check(r, "mandrill_64.png", SkISize::Make(64, 64), true, false, false);
- check(r, "plane.png", SkISize::Make(250, 126), true, false, false);
- // FIXME: We are not ready to test incomplete interlaced pngs
- check(r, "plane_interlaced.png", SkISize::Make(250, 126), true, false, false);
- check(r, "randPixels.png", SkISize::Make(8, 8), true, false, false);
- check(r, "yellow_rose.png", SkISize::Make(400, 301), true, false, false);
-
- // RAW
-// Disable RAW tests for Win32.
-#if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32))
- check(r, "sample_1mp.dng", SkISize::Make(600, 338), false, false, false);
- check(r, "sample_1mp_rotated.dng", SkISize::Make(600, 338), false, false, false);
- check(r, "dng_with_preview.dng", SkISize::Make(600, 338), true, false, false);
-#endif
-}
-
-// Test interlaced PNG in stripes, similar to DM's kStripe_Mode
-DEF_TEST(Codec_stripes, r) {
- const char * path = "plane_interlaced.png";
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- }
-
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
- REPORTER_ASSERT(r, codec);
-
- if (!codec) {
- return;
- }
-
- switch (codec->getScanlineOrder()) {
- case SkCodec::kBottomUp_SkScanlineOrder:
- case SkCodec::kOutOfOrder_SkScanlineOrder:
- ERRORF(r, "This scanline order will not match the original.");
- return;
- default:
- break;
- }
-
- // Baseline for what the image should look like, using N32.
- const SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType);
-
- SkBitmap bm;
- bm.allocPixels(info);
- SkAutoLockPixels autoLockPixels(bm);
- SkCodec::Result result = codec->getPixels(info, bm.getPixels(), bm.rowBytes());
- REPORTER_ASSERT(r, result == SkCodec::kSuccess);
-
- SkMD5::Digest digest;
- md5(bm, &digest);
-
- // Now decode in stripes
- const int height = info.height();
- const int numStripes = 4;
- int stripeHeight;
- int remainingLines;
- SkTDivMod(height, numStripes, &stripeHeight, &remainingLines);
-
- bm.eraseColor(SK_ColorYELLOW);
-
- result = codec->startScanlineDecode(info);
- REPORTER_ASSERT(r, result == SkCodec::kSuccess);
-
- // Odd stripes
- for (int i = 1; i < numStripes; i += 2) {
- // Skip the even stripes
- bool skipResult = codec->skipScanlines(stripeHeight);
- REPORTER_ASSERT(r, skipResult);
-
- int linesDecoded = codec->getScanlines(bm.getAddr(0, i * stripeHeight), stripeHeight,
- bm.rowBytes());
- REPORTER_ASSERT(r, linesDecoded == stripeHeight);
- }
-
- // Even stripes
- result = codec->startScanlineDecode(info);
- REPORTER_ASSERT(r, result == SkCodec::kSuccess);
-
- for (int i = 0; i < numStripes; i += 2) {
- int linesDecoded = codec->getScanlines(bm.getAddr(0, i * stripeHeight), stripeHeight,
- bm.rowBytes());
- REPORTER_ASSERT(r, linesDecoded == stripeHeight);
-
- // Skip the odd stripes
- if (i + 1 < numStripes) {
- bool skipResult = codec->skipScanlines(stripeHeight);
- REPORTER_ASSERT(r, skipResult);
- }
- }
-
- // Remainder at the end
- if (remainingLines > 0) {
- result = codec->startScanlineDecode(info);
- REPORTER_ASSERT(r, result == SkCodec::kSuccess);
-
- bool skipResult = codec->skipScanlines(height - remainingLines);
- REPORTER_ASSERT(r, skipResult);
-
- int linesDecoded = codec->getScanlines(bm.getAddr(0, height - remainingLines),
- remainingLines, bm.rowBytes());
- REPORTER_ASSERT(r, linesDecoded == remainingLines);
- }
-
- compare_to_good_digest(r, digest, bm);
-}
-
-static void test_invalid_stream(skiatest::Reporter* r, const void* stream, size_t len) {
- // Neither of these calls should return a codec. Bots should catch us if we leaked anything.
- SkCodec* codec = SkCodec::NewFromStream(new SkMemoryStream(stream, len, false));
- REPORTER_ASSERT(r, !codec);
-
- SkAndroidCodec* androidCodec =
- SkAndroidCodec::NewFromStream(new SkMemoryStream(stream, len, false));
- REPORTER_ASSERT(r, !androidCodec);
-}
-
-// Ensure that SkCodec::NewFromStream handles freeing the passed in SkStream,
-// even on failure. Test some bad streams.
-DEF_TEST(Codec_leaks, r) {
- // No codec should claim this as their format, so this tests SkCodec::NewFromStream.
- const char nonSupportedStream[] = "hello world";
- // The other strings should look like the beginning of a file type, so we'll call some
- // internal version of NewFromStream, which must also delete the stream on failure.
- const unsigned char emptyPng[] = { 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a };
- const unsigned char emptyJpeg[] = { 0xFF, 0xD8, 0xFF };
- const char emptyWebp[] = "RIFF1234WEBPVP";
- const char emptyBmp[] = { 'B', 'M' };
- const char emptyIco[] = { '\x00', '\x00', '\x01', '\x00' };
- const char emptyGif[] = "GIFVER";
-
- test_invalid_stream(r, nonSupportedStream, sizeof(nonSupportedStream));
- test_invalid_stream(r, emptyPng, sizeof(emptyPng));
- test_invalid_stream(r, emptyJpeg, sizeof(emptyJpeg));
- test_invalid_stream(r, emptyWebp, sizeof(emptyWebp));
- test_invalid_stream(r, emptyBmp, sizeof(emptyBmp));
- test_invalid_stream(r, emptyIco, sizeof(emptyIco));
- test_invalid_stream(r, emptyGif, sizeof(emptyGif));
-}
-
-DEF_TEST(Codec_null, r) {
- // Attempting to create an SkCodec or an SkAndroidCodec with null should not
- // crash.
- SkCodec* codec = SkCodec::NewFromStream(nullptr);
- REPORTER_ASSERT(r, !codec);
-
- SkAndroidCodec* androidCodec = SkAndroidCodec::NewFromStream(nullptr);
- REPORTER_ASSERT(r, !androidCodec);
-}
-
-static void test_dimensions(skiatest::Reporter* r, const char path[]) {
- // Create the codec from the resource file
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
- SkAutoTDelete<SkAndroidCodec> codec(SkAndroidCodec::NewFromStream(stream.release()));
- if (!codec) {
- ERRORF(r, "Unable to create codec '%s'", path);
- return;
- }
-
- // Check that the decode is successful for a variety of scales
- for (int sampleSize = 1; sampleSize < 32; sampleSize++) {
- // Scale the output dimensions
- SkISize scaledDims = codec->getSampledDimensions(sampleSize);
- SkImageInfo scaledInfo = codec->getInfo()
- .makeWH(scaledDims.width(), scaledDims.height())
- .makeColorType(kN32_SkColorType);
-
- // Set up for the decode
- size_t rowBytes = scaledDims.width() * sizeof(SkPMColor);
- size_t totalBytes = scaledInfo.getSafeSize(rowBytes);
- SkAutoTMalloc<SkPMColor> pixels(totalBytes);
-
- SkAndroidCodec::AndroidOptions options;
- options.fSampleSize = sampleSize;
- SkCodec::Result result =
- codec->getAndroidPixels(scaledInfo, pixels.get(), rowBytes, &options);
- REPORTER_ASSERT(r, SkCodec::kSuccess == result);
- }
-}
-
-// Ensure that onGetScaledDimensions returns valid image dimensions to use for decodes
-DEF_TEST(Codec_Dimensions, r) {
- // JPG
- test_dimensions(r, "CMYK.jpg");
- test_dimensions(r, "color_wheel.jpg");
- test_dimensions(r, "grayscale.jpg");
- test_dimensions(r, "mandrill_512_q075.jpg");
- test_dimensions(r, "randPixels.jpg");
-
- // Decoding small images with very large scaling factors is a potential
- // source of bugs and crashes. We disable these tests in Gold because
- // tiny images are not very useful to look at.
- // Here we make sure that we do not crash or access illegal memory when
- // performing scaled decodes on small images.
- test_dimensions(r, "1x1.png");
- test_dimensions(r, "2x2.png");
- test_dimensions(r, "3x3.png");
- test_dimensions(r, "3x1.png");
- test_dimensions(r, "1x1.png");
- test_dimensions(r, "16x1.png");
- test_dimensions(r, "1x16.png");
- test_dimensions(r, "mandrill_16.png");
-
- // RAW
-// Disable RAW tests for Win32.
-#if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32))
- test_dimensions(r, "sample_1mp.dng");
- test_dimensions(r, "sample_1mp_rotated.dng");
- test_dimensions(r, "dng_with_preview.dng");
-#endif
-}
-
-static void test_invalid(skiatest::Reporter* r, const char path[]) {
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
- REPORTER_ASSERT(r, nullptr == codec);
-}
-
-DEF_TEST(Codec_Empty, r) {
- // Test images that should not be able to create a codec
- test_invalid(r, "empty_images/zero-dims.gif");
- test_invalid(r, "empty_images/zero-embedded.ico");
- test_invalid(r, "empty_images/zero-width.bmp");
- test_invalid(r, "empty_images/zero-height.bmp");
- test_invalid(r, "empty_images/zero-width.jpg");
- test_invalid(r, "empty_images/zero-height.jpg");
- test_invalid(r, "empty_images/zero-width.png");
- test_invalid(r, "empty_images/zero-height.png");
- test_invalid(r, "empty_images/zero-width.wbmp");
- test_invalid(r, "empty_images/zero-height.wbmp");
- // This image is an ico with an embedded mask-bmp. This is illegal.
- test_invalid(r, "invalid_images/mask-bmp-ico.ico");
-}
-
-static void test_invalid_parameters(skiatest::Reporter* r, const char path[]) {
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
- SkAutoTDelete<SkCodec> decoder(SkCodec::NewFromStream(stream.release()));
-
- // This should return kSuccess because kIndex8 is supported.
- SkPMColor colorStorage[256];
- int colorCount;
- SkCodec::Result result = decoder->startScanlineDecode(
- decoder->getInfo().makeColorType(kIndex_8_SkColorType), nullptr, colorStorage, &colorCount);
- REPORTER_ASSERT(r, SkCodec::kSuccess == result);
- // The rest of the test is uninteresting if kIndex8 is not supported
- if (SkCodec::kSuccess != result) {
- return;
- }
-
- // This should return kInvalidParameters because, in kIndex_8 mode, we must pass in a valid
- // colorPtr and a valid colorCountPtr.
- result = decoder->startScanlineDecode(
- decoder->getInfo().makeColorType(kIndex_8_SkColorType), nullptr, nullptr, nullptr);
- REPORTER_ASSERT(r, SkCodec::kInvalidParameters == result);
- result = decoder->startScanlineDecode(
- decoder->getInfo().makeColorType(kIndex_8_SkColorType));
- REPORTER_ASSERT(r, SkCodec::kInvalidParameters == result);
-}
-
-DEF_TEST(Codec_Params, r) {
- test_invalid_parameters(r, "index8.png");
- test_invalid_parameters(r, "mandrill.wbmp");
-}
-
-static void codex_test_write_fn(png_structp png_ptr, png_bytep data, png_size_t len) {
- SkWStream* sk_stream = (SkWStream*)png_get_io_ptr(png_ptr);
- if (!sk_stream->write(data, len)) {
- png_error(png_ptr, "sk_write_fn Error!");
- }
-}
-
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-DEF_TEST(Codec_pngChunkReader, r) {
- // Create a dummy bitmap. Use unpremul RGBA for libpng.
- SkBitmap bm;
- const int w = 1;
- const int h = 1;
- const SkImageInfo bmInfo = SkImageInfo::Make(w, h, kRGBA_8888_SkColorType,
- kUnpremul_SkAlphaType);
- bm.setInfo(bmInfo);
- bm.allocPixels();
- bm.eraseColor(SK_ColorBLUE);
- SkMD5::Digest goodDigest;
- md5(bm, &goodDigest);
-
- // Write to a png file.
- png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
- REPORTER_ASSERT(r, png);
- if (!png) {
- return;
- }
-
- png_infop info = png_create_info_struct(png);
- REPORTER_ASSERT(r, info);
- if (!info) {
- png_destroy_write_struct(&png, nullptr);
- return;
- }
-
- if (setjmp(png_jmpbuf(png))) {
- ERRORF(r, "failed writing png");
- png_destroy_write_struct(&png, &info);
- return;
- }
-
- SkDynamicMemoryWStream wStream;
- png_set_write_fn(png, (void*) (&wStream), codex_test_write_fn, nullptr);
-
- png_set_IHDR(png, info, (png_uint_32)w, (png_uint_32)h, 8,
- PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-
- // Create some chunks that match the Android framework's use.
- static png_unknown_chunk gUnknowns[] = {
- { "npOl", (png_byte*)"outline", sizeof("outline"), PNG_HAVE_IHDR },
- { "npLb", (png_byte*)"layoutBounds", sizeof("layoutBounds"), PNG_HAVE_IHDR },
- { "npTc", (png_byte*)"ninePatchData", sizeof("ninePatchData"), PNG_HAVE_IHDR },
- };
-
- png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS, (png_byte*)"npOl\0npLb\0npTc\0", 3);
- png_set_unknown_chunks(png, info, gUnknowns, SK_ARRAY_COUNT(gUnknowns));
-#if PNG_LIBPNG_VER < 10600
- /* Deal with unknown chunk location bug in 1.5.x and earlier */
- png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR);
- png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR);
-#endif
-
- png_write_info(png, info);
-
- for (int j = 0; j < h; j++) {
- png_bytep row = (png_bytep)(bm.getAddr(0, j));
- png_write_rows(png, &row, 1);
- }
- png_write_end(png, info);
- png_destroy_write_struct(&png, &info);
-
- class ChunkReader : public SkPngChunkReader {
- public:
- ChunkReader(skiatest::Reporter* r)
- : fReporter(r)
- {
- this->reset();
- }
-
- bool readChunk(const char tag[], const void* data, size_t length) override {
- for (size_t i = 0; i < SK_ARRAY_COUNT(gUnknowns); ++i) {
- if (!strcmp(tag, (const char*) gUnknowns[i].name)) {
- // Tag matches. This should have been the first time we see it.
- REPORTER_ASSERT(fReporter, !fSeen[i]);
- fSeen[i] = true;
-
- // Data and length should match
- REPORTER_ASSERT(fReporter, length == gUnknowns[i].size);
- REPORTER_ASSERT(fReporter, !strcmp((const char*) data,
- (const char*) gUnknowns[i].data));
- return true;
- }
- }
- ERRORF(fReporter, "Saw an unexpected unknown chunk.");
- return true;
- }
-
- bool allHaveBeenSeen() {
- bool ret = true;
- for (auto seen : fSeen) {
- ret &= seen;
- }
- return ret;
- }
-
- void reset() {
- sk_bzero(fSeen, sizeof(fSeen));
- }
-
- private:
- skiatest::Reporter* fReporter; // Unowned
- bool fSeen[3];
- };
-
- ChunkReader chunkReader(r);
-
- // Now read the file with SkCodec.
- SkAutoTUnref<SkData> data(wStream.copyToData());
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(data, &chunkReader));
- REPORTER_ASSERT(r, codec);
- if (!codec) {
- return;
- }
-
- // Now compare to the original.
- SkBitmap decodedBm;
- decodedBm.setInfo(codec->getInfo());
- decodedBm.allocPixels();
- SkCodec::Result result = codec->getPixels(codec->getInfo(), decodedBm.getPixels(),
- decodedBm.rowBytes());
- REPORTER_ASSERT(r, SkCodec::kSuccess == result);
-
- if (decodedBm.colorType() != bm.colorType()) {
- SkBitmap tmp;
- bool success = decodedBm.copyTo(&tmp, bm.colorType());
- REPORTER_ASSERT(r, success);
- if (!success) {
- return;
- }
-
- tmp.swap(decodedBm);
- }
-
- compare_to_good_digest(r, goodDigest, decodedBm);
- REPORTER_ASSERT(r, chunkReader.allHaveBeenSeen());
-
- // Decoding again will read the chunks again.
- chunkReader.reset();
- REPORTER_ASSERT(r, !chunkReader.allHaveBeenSeen());
- result = codec->getPixels(codec->getInfo(), decodedBm.getPixels(), decodedBm.rowBytes());
- REPORTER_ASSERT(r, SkCodec::kSuccess == result);
- REPORTER_ASSERT(r, chunkReader.allHaveBeenSeen());
-}
-#endif // PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-
-// Stream that can only peek up to a limit
-class LimitedPeekingMemStream : public SkStream {
-public:
- LimitedPeekingMemStream(SkData* data, size_t limit)
- : fStream(data)
- , fLimit(limit) {}
-
- size_t peek(void* buf, size_t bytes) const override {
- return fStream.peek(buf, SkTMin(bytes, fLimit));
- }
- size_t read(void* buf, size_t bytes) override {
- return fStream.read(buf, bytes);
- }
- bool rewind() override {
- return fStream.rewind();
- }
- bool isAtEnd() const override {
- return false;
- }
-private:
- SkMemoryStream fStream;
- const size_t fLimit;
-};
-
-// Stream that is not an asset stream (!hasPosition() or !hasLength())
-class NotAssetMemStream : public SkStream {
-public:
- NotAssetMemStream(SkData* data) : fStream(data) {}
-
- bool hasPosition() const override {
- return false;
- }
-
- bool hasLength() const override {
- return false;
- }
-
- size_t peek(void* buf, size_t bytes) const override {
- return fStream.peek(buf, bytes);
- }
- size_t read(void* buf, size_t bytes) override {
- return fStream.read(buf, bytes);
- }
- bool rewind() override {
- return fStream.rewind();
- }
- bool isAtEnd() const override {
- return fStream.isAtEnd();
- }
-private:
- SkMemoryStream fStream;
-};
-
-// Disable RAW tests for Win32.
-#if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32))
-// Test that the RawCodec works also for not asset stream. This will test the code path using
-// SkRawBufferedStream instead of SkRawAssetStream.
-DEF_TEST(Codec_raw_notseekable, r) {
- const char* path = "dng_with_preview.dng";
- SkString fullPath(GetResourcePath(path));
- SkAutoTUnref<SkData> data(SkData::NewFromFileName(fullPath.c_str()));
- if (!data) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
-
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(new NotAssetMemStream(data)));
- REPORTER_ASSERT(r, codec);
-
- test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr);
-}
-#endif
-
-// Test that even if webp_parse_header fails to peek enough, it will fall back to read()
-// + rewind() and succeed.
-DEF_TEST(Codec_webp_peek, r) {
- const char* path = "baby_tux.webp";
- SkString fullPath(GetResourcePath(path));
- auto data = SkData::MakeFromFileName(fullPath.c_str());
- if (!data) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
-
- // The limit is less than webp needs to peek or read.
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(
- new LimitedPeekingMemStream(data.get(), 25)));
- REPORTER_ASSERT(r, codec);
-
- test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr);
-
- // Similarly, a stream which does not peek should still succeed.
- codec.reset(SkCodec::NewFromStream(new LimitedPeekingMemStream(data.get(), 0)));
- REPORTER_ASSERT(r, codec);
-
- test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr);
-}
-
-// SkCodec's wbmp decoder was initially unnecessarily restrictive.
-// It required the second byte to be zero. The wbmp specification allows
-// a couple of bits to be 1 (so long as they do not overlap with 0x9F).
-// Test that SkCodec now supports an image with these bits set.
-DEF_TEST(Codec_wbmp, r) {
- const char* path = "mandrill.wbmp";
- SkAutoTDelete<SkStream> stream(resource(path));
- if (!stream) {
- SkDebugf("Missing resource '%s'\n", path);
- return;
- }
-
- // Modify the stream to contain a second byte with some bits set.
- auto data = SkCopyStreamToData(stream);
- uint8_t* writeableData = static_cast<uint8_t*>(data->writable_data());
- writeableData[1] = static_cast<uint8_t>(~0x9F);
-
- // SkCodec should support this.
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(data.get()));
- REPORTER_ASSERT(r, codec);
- if (!codec) {
- return;
- }
- test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr);
-}
-
-// wbmp images have a header that can be arbitrarily large, depending on the
-// size of the image. We cap the size at 65535, meaning we only need to look at
-// 8 bytes to determine whether we can read the image. This is important
-// because SkCodec only passes 14 bytes to SkWbmpCodec to determine whether the
-// image is a wbmp.
-DEF_TEST(Codec_wbmp_max_size, r) {
- const unsigned char maxSizeWbmp[] = { 0x00, 0x00, // Header
- 0x83, 0xFF, 0x7F, // W: 65535
- 0x83, 0xFF, 0x7F }; // H: 65535
- SkAutoTDelete<SkStream> stream(new SkMemoryStream(maxSizeWbmp, sizeof(maxSizeWbmp), false));
- SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
-
- REPORTER_ASSERT(r, codec);
- if (!codec) return;
-
- REPORTER_ASSERT(r, codec->getInfo().width() == 65535);
- REPORTER_ASSERT(r, codec->getInfo().height() == 65535);
-
- // Now test an image which is too big. Any image with a larger header (i.e.
- // has bigger width/height) is also too big.
- const unsigned char tooBigWbmp[] = { 0x00, 0x00, // Header
- 0x84, 0x80, 0x00, // W: 65536
- 0x84, 0x80, 0x00 }; // H: 65536
- stream.reset(new SkMemoryStream(tooBigWbmp, sizeof(tooBigWbmp), false));
- codec.reset(SkCodec::NewFromStream(stream.release()));
-
- REPORTER_ASSERT(r, !codec);
-}
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