NazaraEngine/tests/Engine/Shader/Sanitizations.cpp

82 lines
1.2 KiB
C++

#include <Engine/Shader/ShaderUtils.hpp>
#include <Nazara/Core/File.hpp>
#include <Nazara/Core/StringExt.hpp>
#include <Nazara/Shader/ShaderBuilder.hpp>
#include <Nazara/Shader/ShaderLangParser.hpp>
#include <Nazara/Shader/Ast/SanitizeVisitor.hpp>
#include <catch2/catch.hpp>
#include <cctype>
TEST_CASE("sanitizing", "[Shader]")
{
WHEN("splitting branches")
{
std::string_view nzslSource = R"(
struct inputStruct
{
value: f32
}
external
{
[set(0), binding(0)] data: uniform<inputStruct>
}
[entry(frag)]
fn main()
{
let value: f32;
if (data.value > 3.0)
value = 3.0;
else if (data.value > 2.0)
value = 2.0;
else if (data.value > 1.0)
value = 1.0;
else
value = 0.0;
}
)";
Nz::ShaderAst::StatementPtr shader = Nz::ShaderLang::Parse(nzslSource);
Nz::ShaderAst::SanitizeVisitor::Options options;
options.splitMultipleBranches = true;
REQUIRE_NOTHROW(shader = Nz::ShaderAst::Sanitize(*shader, options));
ExpectNZSL(*shader, R"(
[entry(frag)]
fn main()
{
let value: f32;
if (data.value > (3.000000))
{
value = 3.000000;
}
else
{
if (data.value > (2.000000))
{
value = 2.000000;
}
else
{
if (data.value > (1.000000))
{
value = 1.000000;
}
else
{
value = 0.000000;
}
}
}
}
)");
}
}