ladybird/Tests/LibGfx/TestICCProfile.cpp
Nico Weber 14c0bae704 LibGfx+Tests: Add test for webp ICC loading and fix bug
I drew the two webp files in Photoshop and saved them using the
"Save a Copy..." dialog, with ICC profile and all other boxes checked.

(I also tried saving with all the boxes unchecked, but it still wrote an
extended webp instead of a basic file.)

The lossless file exposed a bug: I didn't handle chunk padding
correctly before this patch.
2023-02-24 20:13:52 +01:00

78 lines
2.5 KiB
C++

/*
* Copyright (c) 2023, Nico Weber <thakis@chromium.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/MappedFile.h>
#include <LibGfx/ICC/BinaryWriter.h>
#include <LibGfx/ICC/Profile.h>
#include <LibGfx/JPEGLoader.h>
#include <LibGfx/PNGLoader.h>
#include <LibGfx/WebPLoader.h>
#include <LibTest/TestCase.h>
#ifdef AK_OS_SERENITY
# define TEST_INPUT(x) ("/usr/Tests/LibGfx/test-inputs/" x)
#else
# define TEST_INPUT(x) ("test-inputs/" x)
#endif
TEST_CASE(png)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("icc-v2.png"sv)));
auto png = MUST(Gfx::PNGImageDecoderPlugin::create(file->bytes()));
EXPECT(png->initialize());
auto icc_bytes = MUST(png->icc_data());
EXPECT(icc_bytes.has_value());
auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_bytes.value()));
EXPECT(icc_profile->is_v2());
}
TEST_CASE(jpg)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("icc-v4.jpg"sv)));
auto jpg = MUST(Gfx::JPEGImageDecoderPlugin::create(file->bytes()));
EXPECT(jpg->initialize());
auto icc_bytes = MUST(jpg->icc_data());
EXPECT(icc_bytes.has_value());
auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_bytes.value()));
EXPECT(icc_profile->is_v4());
}
TEST_CASE(webp_extended_lossless)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("extended-lossless.webp"sv)));
auto webp = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(webp->initialize());
auto icc_bytes = MUST(webp->icc_data());
EXPECT(icc_bytes.has_value());
auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_bytes.value()));
EXPECT(icc_profile->is_v2());
}
TEST_CASE(webp_extended_lossy)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("extended-lossy.webp"sv)));
auto webp = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(webp->initialize());
auto icc_bytes = MUST(webp->icc_data());
EXPECT(icc_bytes.has_value());
auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_bytes.value()));
EXPECT(icc_profile->is_v2());
}
TEST_CASE(serialize_icc)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("p3-v4.icc"sv)));
auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(file->bytes()));
EXPECT(icc_profile->is_v4());
auto serialized_bytes = MUST(Gfx::ICC::encode(*icc_profile));
EXPECT_EQ(serialized_bytes, file->bytes());
}