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LibGfx: Add test for serialized bytes of built-in sRGB profile

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Nico Weber 2023-03-16 13:30:09 +01:00 • committed by Tim Flynn
parent 2cfcbccdb5
commit b3a0534e02
1 changed files with 20 additions and 0 deletions
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20
Tests/LibGfx/TestICCProfile.cpp
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@ -4,9 +4,11 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Endian.h>
#include <LibCore/MappedFile.h>
#include <LibGfx/ICC/BinaryWriter.h>
#include <LibGfx/ICC/Profile.h>
#include <LibGfx/ICC/WellKnownProfiles.h>
#include <LibGfx/JPEGLoader.h>
#include <LibGfx/PNGLoader.h>
#include <LibGfx/WebPLoader.h>
@ -75,3 +77,21 @@ TEST_CASE(serialize_icc)
auto serialized_bytes = MUST(Gfx::ICC::encode(*icc_profile));
EXPECT_EQ(serialized_bytes, file->bytes());
}
TEST_CASE(built_in_sRGB)
{
auto sRGB = MUST(Gfx::ICC::sRGB());
auto serialized_bytes = MUST(Gfx::ICC::encode(sRGB));
// We currently exactly match the curve in GIMP's built-in sRGB profile. It's a type 3 'para' curve with 5 parameters.
u32 para[] = { 0x70617261, 0x00000000, 0x00030000, 0x00026666, 0x0000F2A7, 0x00000D59, 0x000013D0, 0x00000A5B };
for (u32& i : para)
i = AK::convert_between_host_and_big_endian(i);
EXPECT(memmem(serialized_bytes.data(), serialized_bytes.size(), para, sizeof(para)) != nullptr);
// We currently exactly match the chromatic adaptation matrix in GIMP's (and other's) built-in sRGB profile.
u32 sf32[] = { 0x73663332, 0x00000000, 0x00010C42, 0x000005DE, 0xFFFFF325, 0x00000793, 0x0000FD90, 0xFFFFFBA1, 0xFFFFFDA2, 0x000003DC, 0x0000C06E };
for (u32& i : sf32)
i = AK::convert_between_host_and_big_endian(i);
EXPECT(memmem(serialized_bytes.data(), serialized_bytes.size(), sf32, sizeof(sf32)) != nullptr);
}