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#include "app.hpp"
#include "compat/assert.hpp"
#include "src/anim-atlas.hpp"
#include <Magnum/Magnum.h>
#include <Magnum/Math/Vector4.h>
#include <Magnum/ImageView.h>
#include <Magnum/Image.h>
#include <Corrade/Containers/ArrayView.h>
#include <Magnum/PixelFormat.h>
#include <iterator>
namespace floormat {
namespace {
constexpr Vector4ub
red(0xff, 0x00, 0x00, 0x20), green(0x00, 0x00, 0xff, 0x20), blue(0xff, 0x00, 0x00, 0x20),
red0(0xff, 0x00, 0x00, 0x1f), green0(0x00, 0x00, 0xff, 0x1f), blue0(0xff, 0x00, 0x00, 0x1f),
none0(0xff, 0xff, 0xff, 0x1f), white(0xff, 0xff, 0xff, 0xff);
constexpr Vector4ub img_data[] = {
red, green0, blue0, white,
red0, green, blue, none0,
none0, green, blue0, blue,
red0, green0, blue, green,
red, green, blue, none0,
red, green0, blue0, red,
};
constexpr bool result[] = {
// inverse row order, use tac(1)
true, false, false, true,
true, true, true, false,
false, false, true, true,
false, true, false, true,
false, true, true, false,
true, false, false, true,
};
} // namespace
void test_app::test_bitmask()
{
constexpr auto size = std::size(img_data), width = 4_uz, height = size/4;
static_assert(size % 4 == 0);
static_assert(size == std::size(result));
ImageView2D img{PixelFormat::RGBA8Unorm, {width, height}, img_data};
auto bitmask = anim_atlas::make_bitmask(img);
fm_assert(img.size().product() == std::size(result));
for (auto i = 0_uz; i < size; i++)
if (bitmask[i] != result[i])
fm_abort("wrong value at bit %zu, should be %s", i, result[i] ? "true" : "false");
}
} // namespace floormat
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