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/*
* Copyright © 2017 Collabora Ltd.
*
* This file is part of vkmark.
*
* vkmark is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 2.1 of the License, or (at your option) any later version.
*
* vkmark is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with vkmark. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Alexandros Frantzis <alexandros.frantzis@collabora.com>
*/
#include "src/util.h"
#include "noise_rgb.c"
#include "noise_rgba.c"
#include "catch.hpp"
#include <cstring>
namespace
{
struct TemporarySetDataDir
{
TemporarySetDataDir(std::string const& dir) { Util::set_data_dir(dir); }
~TemporarySetDataDir() { Util::set_data_dir({}); }
};
template <typename ImageStruct>
class ImageEquals : public Catch::MatcherBase<Util::Image>
{
public:
ImageEquals(ImageStruct& image_struct) : image_struct{image_struct} {}
virtual bool match(Util::Image const& image) const override
{
return image.width == image_struct.width &&
image.height == image_struct.height &&
image.size == (sizeof(image_struct.pixel_data) - 1) &&
!std::memcmp(image.data, image_struct.pixel_data, image.size);
}
virtual std::string describe() const override
{
std::ostringstream ss;
ss << "matches image with width:" << image_struct.width
<< " height:" << image_struct.height
<< " size:" << sizeof(image_struct.pixel_data) - 1;
return ss.str();
}
ImageStruct& image_struct;
};
template<typename ImageStruct>
ImageEquals<ImageStruct> Equals(ImageStruct& image_struct)
{
return ImageEquals<ImageStruct>(image_struct);
}
}
SCENARIO("util image file reads", "")
{
TemporarySetDataDir set_data_dir{VKMARK_TEST_DATA_DIR};
GIVEN("An non-existent image file")
{
std::string const non_existent_file{"non_existent.txt"};
WHEN("reading the file")
{
THEN("an exception is thrown")
{
REQUIRE_THROWS(Util::read_image_file(non_existent_file));
}
}
}
GIVEN("An image file without alpha")
{
std::string const rgb_file{"images/noise-rgb.png"};
WHEN("reading the file")
{
auto const image = Util::read_image_file(rgb_file);
THEN("the image contents are returned with fixed alpha 0xff")
{
REQUIRE_THAT(image, Equals(noise_rgb_image));
}
}
}
GIVEN("An image file with alpha")
{
std::string const rgba_file{"images/noise-rgba.png"};
WHEN("reading the file")
{
auto const image = Util::read_image_file(rgba_file);
THEN("the image contents are returned with alpha")
{
REQUIRE_THAT(image, Equals(noise_rgba_image));
}
}
}
}
SCENARIO("util image object", "")
{
TemporarySetDataDir set_data_dir{VKMARK_TEST_DATA_DIR};
GIVEN("An image object")
{
auto image = Util::read_image_file("images/noise-rgb.png");
auto const image_data = image.data;
auto const image_size = image.size;
auto const image_width = image.width;
auto const image_height = image.width;
WHEN("move constructing a new image object")
{
Util::Image new_image{std::move(image)};
THEN("the old image object is emptied")
{
REQUIRE(image.data == nullptr);
}
THEN("the new image object contains valid data")
{
REQUIRE(new_image.data == image_data);
REQUIRE(new_image.size == image_size);
REQUIRE(new_image.width == image_width);
REQUIRE(new_image.height == image_height);
}
}
WHEN("move assigning to an image object")
{
Util::Image new_image;
new_image = std::move(image);
THEN("the old image object is emptied")
{
REQUIRE(image.data == nullptr);
}
THEN("the new image object contains valid data")
{
REQUIRE(new_image.data == image_data);
REQUIRE(new_image.size == image_size);
REQUIRE(new_image.width == image_width);
REQUIRE(new_image.height == image_height);
}
}
}
}
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