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// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <jxl/types.h>
#include <cstdint>
#include <sstream>
#include <utility>
#include <vector>
#include "lib/extras/dec/decode.h"
#include "lib/extras/dec/jxl.h"
#include "lib/extras/packed_image.h"
#include "lib/jxl/base/span.h"
#include "lib/jxl/test_utils.h"
#include "lib/jxl/testing.h"
namespace jxl {
namespace {
using ::testing::SizeIs;
TEST(BlendingTest, Crops) {
const std::vector<uint8_t> compressed =
jxl::test::ReadTestData("jxl/blending/cropped_traffic_light.jxl");
extras::JXLDecompressParams dparams;
dparams.accepted_formats = {{3, JXL_TYPE_UINT16, JXL_LITTLE_ENDIAN, 0}};
extras::PackedPixelFile decoded;
ASSERT_TRUE(DecodeImageJXL(compressed.data(), compressed.size(), dparams,
/*decoded_bytes=*/nullptr, &decoded));
ASSERT_THAT(decoded.frames, SizeIs(4));
int i = 0;
for (auto&& decoded_frame : decoded.frames) {
std::ostringstream filename;
filename << "jxl/blending/cropped_traffic_light_frame-" << i << ".png";
const std::vector<uint8_t> compressed_frame =
jxl::test::ReadTestData(filename.str());
extras::PackedPixelFile decoded_frame_ppf;
decoded_frame_ppf.info = decoded.info;
decoded_frame_ppf.icc = decoded.icc;
decoded_frame_ppf.color_encoding = decoded.color_encoding;
decoded_frame_ppf.extra_channels_info = decoded.extra_channels_info;
decoded_frame_ppf.frames.emplace_back(std::move(decoded_frame));
extras::PackedPixelFile expected_frame_ppf;
ASSERT_TRUE(extras::DecodeBytes(Bytes(compressed_frame),
extras::ColorHints(), &expected_frame_ppf));
EXPECT_EQ(0.0f,
test::ComputeDistance2(decoded_frame_ppf, expected_frame_ppf));
++i;
}
}
} // namespace
} // namespace jxl
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