/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "CodecPriv.h"
#include "Resources.h"
#include "SkAndroidCodec.h"
#include "SkAnimCodecPlayer.h"
#include "SkBitmap.h"
#include "SkCodec.h"
#include "SkCodecAnimation.h"
#include "SkData.h"
#include "SkImageInfo.h"
#include "SkMakeUnique.h"
#include "SkRefCnt.h"
#include "SkSize.h"
#include "SkString.h"
#include "SkTypes.h"
#include "Test.h"
#include "sk_tool_utils.h"
#include <cstring>
#include <memory>
#include <utility>
#include <vector>
DEF_TEST(Codec_trunc, r) {
sk_sp<SkData> data(GetResourceAsData("images/box.gif"));
if (!data) {
return;
}
// See also Codec_GifTruncated2 in GifTest.cpp for this magic 23.
//
// TODO: just move this getFrameInfo call to Codec_GifTruncated2?
SkCodec::MakeFromData(SkData::MakeSubset(data.get(), 0, 23))->getFrameInfo();
}
// 565 does not support alpha, but there is no reason for it not to support an
// animated image with a frame that has alpha but then blends onto an opaque
// frame making the result opaque. Test that we can decode such a frame.
DEF_TEST(Codec_565, r) {
sk_sp<SkData> data(GetResourceAsData("images/blendBG.webp"));
if (!data) {
return;
}
std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(std::move(data)));
auto info = codec->getInfo().makeColorType(kRGB_565_SkColorType);
SkBitmap bm;
bm.allocPixels(info);
SkCodec::Options options;
options.fFrameIndex = 1;
options.fPriorFrame = SkCodec::kNoFrame;
const auto result = codec->getPixels(info, bm.getPixels(), bm.rowBytes(),
&options);
REPORTER_ASSERT(r, result == SkCodec::kSuccess);
}
static bool restore_previous(const SkCodec::FrameInfo& info) {
return info.fDisposalMethod == SkCodecAnimation::DisposalMethod::kRestorePrevious;
}
DEF_TEST(Codec_frames, r) {
constexpr int kNoFrame = SkCodec::kNoFrame;
constexpr SkAlphaType kOpaque = kOpaque_SkAlphaType;
constexpr SkAlphaType kUnpremul = kUnpremul_SkAlphaType;
constexpr SkCodecAnimation::DisposalMethod kKeep =
SkCodecAnimation::DisposalMethod::kKeep;
constexpr SkCodecAnimation::DisposalMethod kRestoreBG =
SkCodecAnimation::DisposalMethod::kRestoreBGColor;
constexpr SkCodecAnimation::DisposalMethod kRestorePrev =
SkCodecAnimation::DisposalMethod::kRestorePrevious;
static const struct {
const char* fName;
int fFrameCount;
// One less than fFramecount, since the first frame is always
// independent.
std::vector<int> fRequiredFrames;
// Same, since the first frame should match getInfo
std::vector<SkAlphaType> fAlphas;
// The size of this one should match fFrameCount for animated, empty
// otherwise.
std::vector<int> fDurations;
int fRepetitionCount;
std::vector<SkCodecAnimation::DisposalMethod> fDisposalMethods;
} gRecs[] = {
{ "images/required.gif", 7,
{ 0, 1, 2, 3, 4, 5 },
{ kOpaque, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul },
{ 100, 100, 100, 100, 100, 100, 100 },
0,
{ kKeep, kRestoreBG, kKeep, kKeep, kKeep, kRestoreBG, kKeep } },
{ "images/alphabetAnim.gif", 13,
{ kNoFrame, 0, 0, 0, 0, 5, 6, kNoFrame, kNoFrame, 9, 10, 11 },
{ kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul,
kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul },
{ 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100 },
0,
{ kKeep, kRestorePrev, kRestorePrev, kRestorePrev, kRestorePrev,
kRestoreBG, kKeep, kRestoreBG, kRestoreBG, kKeep, kKeep,
kRestoreBG, kKeep } },
{ "images/randPixelsAnim2.gif", 4,
// required frames
{ 0, 0, 1 },
// alphas
{ kOpaque, kOpaque, kOpaque },
// durations
{ 0, 1000, 170, 40 },
// repetition count
0,
{ kKeep, kKeep, kRestorePrev, kKeep } },
{ "images/randPixelsAnim.gif", 13,
// required frames
{ 0, 1, 2, 3, 4, 3, 6, 7, 7, 7, 9, 9 },
{ kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul,
kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul },
// durations
{ 0, 1000, 170, 40, 220, 7770, 90, 90, 90, 90, 90, 90, 90 },
// repetition count
0,
{ kKeep, kKeep, kKeep, kKeep, kRestoreBG, kRestoreBG, kRestoreBG,
kRestoreBG, kRestorePrev, kRestoreBG, kRestorePrev, kRestorePrev,
kRestorePrev, } },
{ "images/box.gif", 1, {}, {}, {}, 0, { kKeep } },
{ "images/color_wheel.gif", 1, {}, {}, {}, 0, { kKeep } },
{ "images/test640x479.gif", 4, { 0, 1, 2 },
{ kOpaque, kOpaque, kOpaque },
{ 200, 200, 200, 200 },
SkCodec::kRepetitionCountInfinite,
{ kKeep, kKeep, kKeep, kKeep } },
{ "images/colorTables.gif", 2, { 0 }, { kOpaque }, { 1000, 1000 }, 5,
{ kKeep, kKeep } },
{ "images/arrow.png", 1, {}, {}, {}, 0, {} },
{ "images/google_chrome.ico", 1, {}, {}, {}, 0, {} },
{ "images/brickwork-texture.jpg", 1, {}, {}, {}, 0, {} },
#if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32))
{ "images/dng_with_preview.dng", 1, {}, {}, {}, 0, {} },
#endif
{ "images/mandrill.wbmp", 1, {}, {}, {}, 0, {} },
{ "images/randPixels.bmp", 1, {}, {}, {}, 0, {} },
{ "images/yellow_rose.webp", 1, {}, {}, {}, 0, {} },
{ "images/webp-animated.webp", 3, { 0, 1 }, { kOpaque, kOpaque },
{ 1000, 500, 1000 }, SkCodec::kRepetitionCountInfinite,
{ kKeep, kKeep, kKeep } },
{ "images/blendBG.webp", 7,
{ 0, kNoFrame, kNoFrame, kNoFrame, 4, 4 },
{ kOpaque, kOpaque, kUnpremul, kOpaque, kUnpremul, kUnpremul },
{ 525, 500, 525, 437, 609, 729, 444 }, 7,
{ kKeep, kKeep, kKeep, kKeep, kKeep, kKeep, kKeep } },
{ "images/required.webp", 7,
{ 0, 1, 1, kNoFrame, 4, 4 },
{ kOpaque, kUnpremul, kUnpremul, kOpaque, kOpaque, kOpaque },
{ 100, 100, 100, 100, 100, 100, 100 },
1,
{ kKeep, kRestoreBG, kKeep, kKeep, kKeep, kRestoreBG, kKeep } },
};
for (const auto& rec : gRecs) {
sk_sp<SkData> data(GetResourceAsData(rec.fName));
if (!data) {
// Useful error statement, but sometimes people run tests without
// resources, and they do not want to see these messages.
//ERRORF(r, "Missing resources? Could not find '%s'", rec.fName);
continue;
}
std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(data));
if (!codec) {
ERRORF(r, "Failed to create an SkCodec from '%s'", rec.fName);
continue;
}
{
SkCodec::FrameInfo frameInfo;
REPORTER_ASSERT(r, !codec->getFrameInfo(0, &frameInfo));
}
const int repetitionCount = codec->getRepetitionCount();
if (repetitionCount != rec.fRepetitionCount) {
ERRORF(r, "%s repetition count does not match! expected: %i\tactual: %i",
rec.fName, rec.fRepetitionCount, repetitionCount);
}
const int expected = rec.fFrameCount;
if (rec.fRequiredFrames.size() + 1 != static_cast<size_t>(expected)) {
ERRORF(r, "'%s' has wrong number entries in fRequiredFrames; expected: %i\tactual: %i",
rec.fName, expected - 1, rec.fRequiredFrames.size());
continue;
}
if (expected > 1) {
if (rec.fDurations.size() != static_cast<size_t>(expected)) {
ERRORF(r, "'%s' has wrong number entries in fDurations; expected: %i\tactual: %i",
rec.fName, expected, rec.fDurations.size());
continue;
}
if (rec.fAlphas.size() + 1 != static_cast<size_t>(expected)) {
ERRORF(r, "'%s' has wrong number entries in fAlphas; expected: %i\tactual: %i",
rec.fName, expected - 1, rec.fAlphas.size());
continue;
}
if (rec.fDisposalMethods.size() != static_cast<size_t>(expected)) {
ERRORF(r, "'%s' has wrong number entries in fDisposalMethods; "
"expected %i\tactual: %i",
rec.fName, expected, rec.fDisposalMethods.size());
continue;
}
}
enum class TestMode {
kVector,
kIndividual,
};
for (auto mode : { TestMode::kVector, TestMode::kIndividual }) {
// Re-create the codec to reset state and test parsing.
codec = SkCodec::MakeFromData(data);
int frameCount;
std::vector<SkCodec::FrameInfo> frameInfos;
switch (mode) {
case TestMode::kVector:
frameInfos = codec->getFrameInfo();
// getFrameInfo returns empty set for non-animated.
frameCount = frameInfos.empty() ? 1 : frameInfos.size();
break;
case TestMode::kIndividual:
frameCount = codec->getFrameCount();
break;
}
if (frameCount != expected) {
ERRORF(r, "'%s' expected frame count: %i\tactual: %i",
rec.fName, expected, frameCount);
continue;
}
// From here on, we are only concerned with animated images.
if (1 == frameCount) {
continue;
}
for (int i = 0; i < frameCount; i++) {
SkCodec::FrameInfo frameInfo;
switch (mode) {
case TestMode::kVector:
frameInfo = frameInfos[i];
break;
case TestMode::kIndividual:
REPORTER_ASSERT(r, codec->getFrameInfo(i, nullptr));
REPORTER_ASSERT(r, codec->getFrameInfo(i, &frameInfo));
break;
}
if (rec.fDurations[i] != frameInfo.fDuration) {
ERRORF(r, "%s frame %i's durations do not match! expected: %i\tactual: %i",
rec.fName, i, rec.fDurations[i], frameInfo.fDuration);
}
auto to_string = [](SkAlphaType alpha) {
switch (alpha) {
case kUnpremul_SkAlphaType:
return "unpremul";
case kOpaque_SkAlphaType:
return "opaque";
default:
SkASSERT(false);
return "unknown";
}
};
auto expectedAlpha = 0 == i ? codec->getInfo().alphaType() : rec.fAlphas[i-1];
auto alpha = frameInfo.fAlphaType;
if (expectedAlpha != alpha) {
ERRORF(r, "%s's frame %i has wrong alpha type! expected: %s\tactual: %s",
rec.fName, i, to_string(expectedAlpha), to_string(alpha));
}
if (0 == i) {
REPORTER_ASSERT(r, frameInfo.fRequiredFrame == SkCodec::kNoFrame);
} else if (rec.fRequiredFrames[i-1] != frameInfo.fRequiredFrame) {
ERRORF(r, "%s's frame %i has wrong dependency! expected: %i\tactual: %i",
rec.fName, i, rec.fRequiredFrames[i-1], frameInfo.fRequiredFrame);
}
REPORTER_ASSERT(r, frameInfo.fDisposalMethod == rec.fDisposalMethods[i]);
}
if (TestMode::kIndividual == mode) {
// No need to test decoding twice.
continue;
}
// Compare decoding in multiple ways:
// - Start from scratch for each frame. |codec| will have to decode the required frame
// (and any it depends on) to decode. This is stored in |cachedFrames|.
// - Provide the frame that a frame depends on, so |codec| just has to blend.
// - Provide a frame after the required frame, which will be covered up by the newest
// frame.
// All should look the same.
std::vector<SkBitmap> cachedFrames(frameCount);
const auto info = codec->getInfo().makeColorType(kN32_SkColorType);
auto decode = [&](SkBitmap* bm, int index, int cachedIndex) {
auto decodeInfo = info;
if (index > 0) {
decodeInfo = info.makeAlphaType(frameInfos[index].fAlphaType);
}
bm->allocPixels(decodeInfo);
if (cachedIndex != SkCodec::kNoFrame) {
// First copy the pixels from the cached frame
const bool success = sk_tool_utils::copy_to(bm, kN32_SkColorType,
cachedFrames[cachedIndex]);
REPORTER_ASSERT(r, success);
}
SkCodec::Options opts;
opts.fFrameIndex = index;
opts.fPriorFrame = cachedIndex;
const auto result = codec->getPixels(decodeInfo, bm->getPixels(), bm->rowBytes(),
&opts);
if (cachedIndex != SkCodec::kNoFrame &&
restore_previous(frameInfos[cachedIndex])) {
if (result == SkCodec::kInvalidParameters) {
return true;
}
ERRORF(r, "Using a kRestorePrevious frame as fPriorFrame should fail");
return false;
}
if (result != SkCodec::kSuccess) {
ERRORF(r, "Failed to decode frame %i from %s when providing prior frame %i, "
"error %i", index, rec.fName, cachedIndex, result);
}
return result == SkCodec::kSuccess;
};
for (int i = 0; i < frameCount; i++) {
SkBitmap& cachedFrame = cachedFrames[i];
if (!decode(&cachedFrame, i, SkCodec::kNoFrame)) {
continue;
}
const auto reqFrame = frameInfos[i].fRequiredFrame;
if (reqFrame == SkCodec::kNoFrame) {
// Nothing to compare against.
continue;
}
for (int j = reqFrame; j < i; j++) {
SkBitmap frame;
if (restore_previous(frameInfos[j])) {
(void) decode(&frame, i, j);
continue;
}
if (!decode(&frame, i, j)) {
continue;
}
// Now verify they're equal.
const size_t rowLen = info.bytesPerPixel() * info.width();
for (int y = 0; y < info.height(); y++) {
const void* cachedAddr = cachedFrame.getAddr(0, y);
SkASSERT(cachedAddr != nullptr);
const void* addr = frame.getAddr(0, y);
SkASSERT(addr != nullptr);
const bool lineMatches = memcmp(cachedAddr, addr, rowLen) == 0;
if (!lineMatches) {
SkString name = SkStringPrintf("cached_%i", i);
write_bm(name.c_str(), cachedFrame);
name = SkStringPrintf("frame_%i", i);
write_bm(name.c_str(), frame);
ERRORF(r, "%s's frame %i is different (starting from line %i) when "
"providing prior frame %i!", rec.fName, i, y, j);
break;
}
}
}
}
}
}
}
// Verify that a webp image can be animated scaled down. This image has a
// kRestoreBG frame, so it is an interesting image to test. After decoding that
// frame, we have to erase its rectangle. The rectangle has to be adjusted
// based on the scaled size.
DEF_TEST(AndroidCodec_animated, r) {
if (GetResourcePath().isEmpty()) {
return;
}
const char* file = "images/required.webp";
sk_sp<SkData> data(GetResourceAsData(file));
if (!data) {
ERRORF(r, "Missing %s", file);
return;
}
auto codec = SkAndroidCodec::MakeFromCodec(SkCodec::MakeFromData(std::move(data)));
if (!codec) {
ERRORF(r, "Failed to decode %s", file);
return;
}
auto info = codec->getInfo().makeAlphaType(kPremul_SkAlphaType);
for (int sampleSize : { 8, 32, 100 }) {
auto dimensions = codec->codec()->getScaledDimensions(1.0f / sampleSize);
info = info.makeWH(dimensions.width(), dimensions.height());
SkBitmap bm;
bm.allocPixels(info);
SkCodec::Options options;
for (int i = 0; i < codec->codec()->getFrameCount(); ++i) {
SkCodec::FrameInfo frameInfo;
REPORTER_ASSERT(r, codec->codec()->getFrameInfo(i, &frameInfo));
if (5 == i) {
REPORTER_ASSERT(r, frameInfo.fDisposalMethod
== SkCodecAnimation::DisposalMethod::kRestoreBGColor);
}
options.fFrameIndex = i;
options.fPriorFrame = i - 1;
info = info.makeAlphaType(frameInfo.fAlphaType);
auto result = codec->codec()->getPixels(info, bm.getPixels(), bm.rowBytes(),
&options);
REPORTER_ASSERT(r, result == SkCodec::kSuccess);
// Now compare to not using prior frame.
SkBitmap bm2;
bm2.allocPixels(info);
options.fPriorFrame = SkCodec::kNoFrame;
result = codec->codec()->getPixels(info, bm2.getPixels(), bm2.rowBytes(),
&options);
REPORTER_ASSERT(r, result == SkCodec::kSuccess);
for (int y = 0; y < info.height(); ++y) {
if (memcmp(bm.getAddr32(0, y), bm2.getAddr32(0, y), info.minRowBytes())) {
ERRORF(r, "pixel mismatch for sample size %i, frame %i resulting in "
"dimensions %i x %i line %i\n",
sampleSize, i, info.width(), info.height(), y);
break;
}
}
}
}
}
DEF_TEST(AnimCodecPlayer, r) {
static constexpr struct {
const char* fFile;
uint32_t fDuration;
SkISize fSize;
} gTests[] = {
{ "images/alphabetAnim.gif", 1300, {100, 100} },
{ "images/randPixels.gif" , 0, { 8, 8} },
{ "images/randPixels.jpg" , 0, { 8, 8} },
{ "images/randPixels.png" , 0, { 8, 8} },
};
for (const auto& test : gTests) {
auto codec = SkCodec::MakeFromData(GetResourceAsData(test.fFile));
REPORTER_ASSERT(r, codec);
auto player = skstd::make_unique<SkAnimCodecPlayer>(std::move(codec));
if (player->duration() != test.fDuration) {
printf("*** %d vs %d\n", player->duration(), test.fDuration);
}
REPORTER_ASSERT(r, player->duration() == test.fDuration);
auto f0 = player->getFrame();
REPORTER_ASSERT(r, f0);
REPORTER_ASSERT(r, f0->bounds().size() == test.fSize);
player->seek(500);
auto f1 = player->getFrame();
REPORTER_ASSERT(r, f1);
REPORTER_ASSERT(r, f1->bounds().size() == test.fSize);
}
}