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serenity/Tests/LibGfx/TestImageDecoder.cpp
MacDue 6cf8eeb7a4 LibGfx: Return bool not ErrorOr<bool> from ImageDecoderPlugin::sniff() 
Nobody made use of the ErrorOr return value and it just added more
chance of confusion, since it was not clear if failing to sniff an
image should return an error or false. The answer was false, if you
returned Error you'd crash the ImageDecoder.
2023-02-26 19:43:17 +01:00

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/*
* Copyright (c) 2021, the SerenityOS developers.
* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/DeprecatedString.h>
#include <LibCore/MappedFile.h>
#include <LibGfx/BMPLoader.h>
#include <LibGfx/GIFLoader.h>
#include <LibGfx/ICOLoader.h>
#include <LibGfx/ImageDecoder.h>
#include <LibGfx/JPEGLoader.h>
#include <LibGfx/PBMLoader.h>
#include <LibGfx/PGMLoader.h>
#include <LibGfx/PNGLoader.h>
#include <LibGfx/PPMLoader.h>
#include <LibGfx/TGALoader.h>
#include <LibGfx/WebPLoader.h>
#include <LibTest/TestCase.h>
#include <stdio.h>
#include <string.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(test_bmp)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("rgba32-1.bmp"sv)));
EXPECT(Gfx::BMPImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::BMPImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_gif)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("download-animation.gif"sv)));
EXPECT(Gfx::GIFImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::GIFImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(1));
EXPECT(frame.duration == 400);
}
TEST_CASE(test_not_ico)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie.png"sv)));
EXPECT(!Gfx::ICOImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::ICOImageDecoderPlugin::create(file->bytes()));
EXPECT(!plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
EXPECT(plugin_decoder->frame(0).is_error());
}
TEST_CASE(test_bmp_embedded_in_ico)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("serenity.ico"sv)));
EXPECT(Gfx::ICOImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::ICOImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
EXPECT(!plugin_decoder->frame(0).is_error());
}
TEST_CASE(test_jpg)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("rgb24.jpg"sv)));
EXPECT(Gfx::JPEGImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::JPEGImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_pbm)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-raw.pbm"sv)));
EXPECT(Gfx::PBMImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::PBMImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_pgm)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-raw.pgm"sv)));
EXPECT(Gfx::PGMImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::PGMImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_png)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie.png"sv)));
EXPECT(Gfx::PNGImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::PNGImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_ppm)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-raw.ppm"sv)));
EXPECT(Gfx::PPMImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::PPMImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT(plugin_decoder->frame_count());
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_targa_bottom_left)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-bottom-left-uncompressed.tga"sv)));
EXPECT(MUST(Gfx::TGAImageDecoderPlugin::validate_before_create(file->bytes())));
auto plugin_decoder = MUST(Gfx::TGAImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_targa_top_left)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-top-left-uncompressed.tga"sv)));
EXPECT(MUST(Gfx::TGAImageDecoderPlugin::validate_before_create(file->bytes())));
auto plugin_decoder = MUST(Gfx::TGAImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_targa_bottom_left_compressed)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-bottom-left-compressed.tga"sv)));
EXPECT(MUST(Gfx::TGAImageDecoderPlugin::validate_before_create(file->bytes())));
auto plugin_decoder = MUST(Gfx::TGAImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_targa_top_left_compressed)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("buggie-top-left-compressed.tga"sv)));
EXPECT(MUST(Gfx::TGAImageDecoderPlugin::validate_before_create(file->bytes())));
auto plugin_decoder = MUST(Gfx::TGAImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
auto frame = MUST(plugin_decoder->frame(0));
EXPECT(frame.duration == 0);
}
TEST_CASE(test_webp_simple_lossy)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("simple-vp8.webp"sv)));
EXPECT(Gfx::WebPImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(240, 240));
}
TEST_CASE(test_webp_simple_lossless)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("simple-vp8l.webp"sv)));
EXPECT(Gfx::WebPImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(386, 395));
}
TEST_CASE(test_webp_extended_lossy)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("extended-lossy.webp"sv)));
EXPECT(Gfx::WebPImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(417, 223));
}
TEST_CASE(test_webp_extended_lossless)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("extended-lossless.webp"sv)));
EXPECT(Gfx::WebPImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 1u);
EXPECT(!plugin_decoder->is_animated());
EXPECT(!plugin_decoder->loop_count());
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(417, 223));
}
TEST_CASE(test_webp_extended_lossless_animated)
{
auto file = MUST(Core::MappedFile::map(TEST_INPUT("extended-lossless-animated.webp"sv)));
EXPECT(Gfx::WebPImageDecoderPlugin::sniff(file->bytes()));
auto plugin_decoder = MUST(Gfx::WebPImageDecoderPlugin::create(file->bytes()));
EXPECT(plugin_decoder->initialize());
EXPECT_EQ(plugin_decoder->frame_count(), 8u);
EXPECT(plugin_decoder->is_animated());
EXPECT_EQ(plugin_decoder->loop_count(), 42u);
EXPECT_EQ(plugin_decoder->size(), Gfx::IntSize(990, 1050));
}
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