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OpenAssetTools/test/ObjWritingTests/Game/IW3/Techset/TechsetDumperIW3Test.cpp
Jan Laupetin 0c4a2771ef chore: add unit tests for iw3 techsets
2026-03-20 23:51:19 +01:00

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#include "Game/IW3/Techset/TechsetDumperIW3.h"
#include "Asset/AssetRegistration.h"
#include "Game/IW3/IW3.h"
#include "OatTestPaths.h"
#include "SearchPath/MockOutputPath.h"
#include "SearchPath/MockSearchPath.h"
#include "Utils/MemoryManager.h"
#include <catch2/catch_test_macros.hpp>
#include <filesystem>
#include <format>
#include <fstream>
#include <string>
using namespace IW3;
using namespace Catch;
using namespace std::literals;
namespace fs = std::filesystem;
namespace
{
std::string Trimmed(const std::string& input)
{
auto start = input.find_first_not_of(" \r\n");
if (start == std::string::npos)
start = 0;
auto end = input.find_last_not_of(" \r\n");
if (end == std::string::npos)
end = input.length();
else
end = end + 1;
return input.substr(start, end - start);
}
MaterialVertexShader* GivenVertexShader(const std::string& name, MemoryManager& memory)
{
const auto filePath = oat::paths::GetTestDirectory() / "ObjWritingTests/Game/IW3/Techset" / std::format("vs_{}.cso", name);
const auto fileSize = static_cast<size_t>(fs::file_size(filePath));
std::ifstream file(filePath, std::ios::binary);
REQUIRE(file.is_open());
auto* shader = memory.Alloc<MaterialVertexShader>();
shader->name = memory.Dup(name.c_str());
shader->prog.loadDef.program = reinterpret_cast<unsigned*>(memory.Alloc<char>(fileSize));
shader->prog.loadDef.programSize = static_cast<decltype(GfxVertexShaderLoadDef::programSize)>(fileSize / 4u);
file.read(reinterpret_cast<char*>(shader->prog.loadDef.program), fileSize);
REQUIRE(file.gcount() == static_cast<std::streamsize>(fileSize));
return shader;
}
MaterialPixelShader* GivenPixelShader(const std::string& name, MemoryManager& memory)
{
const auto filePath = oat::paths::GetTestDirectory() / "ObjWritingTests/Game/IW3/Techset" / std::format("ps_{}.cso", name);
const auto fileSize = static_cast<size_t>(fs::file_size(filePath));
std::ifstream file(filePath, std::ios::binary);
REQUIRE(file.is_open());
auto* shader = memory.Alloc<MaterialPixelShader>();
shader->name = memory.Dup(name.c_str());
shader->prog.loadDef.program = reinterpret_cast<unsigned*>(memory.Alloc<char>(fileSize));
shader->prog.loadDef.programSize = static_cast<decltype(GfxVertexShaderLoadDef::programSize)>(fileSize / 4u);
file.read(reinterpret_cast<char*>(shader->prog.loadDef.program), fileSize);
REQUIRE(file.gcount() == static_cast<std::streamsize>(fileSize));
return shader;
}
MaterialTechnique* GivenDepthPrepassTechnique(MemoryManager& memory)
{
auto* technique = memory.Alloc<MaterialTechnique>();
technique->name = "example_zprepass";
technique->flags = 0x4;
technique->passCount = 1;
auto& pass = technique->passArray[0];
pass.perPrimArgCount = 1;
pass.perObjArgCount = 1;
pass.stableArgCount = 0;
pass.customSamplerFlags = 0;
pass.vertexShader = GivenVertexShader("simple.hlsl", memory);
pass.pixelShader = GivenPixelShader("simple.hlsl", memory);
pass.vertexDecl = memory.Alloc<MaterialVertexDeclaration>();
auto& vertexDecl = *pass.vertexDecl;
vertexDecl.streamCount = 1;
vertexDecl.hasOptionalSource = false;
vertexDecl.routing.data[0].source = STREAM_SRC_POSITION;
vertexDecl.routing.data[0].dest = STREAM_DST_POSITION;
pass.args = memory.Alloc<MaterialShaderArgument>(2);
pass.args[0].type = MTL_ARG_CODE_VERTEX_CONST;
pass.args[0].dest = 4;
pass.args[0].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_WORLD_MATRIX;
pass.args[0].u.codeConst.firstRow = 0;
pass.args[0].u.codeConst.rowCount = 4;
pass.args[1].type = MTL_ARG_CODE_VERTEX_CONST;
pass.args[1].dest = 0;
pass.args[1].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_VIEW_PROJECTION_MATRIX;
pass.args[1].u.codeConst.firstRow = 0;
pass.args[1].u.codeConst.rowCount = 4;
return technique;
}
MaterialTechnique* GivenLitSpotTechnique(MemoryManager& memory)
{
auto* technique = memory.Alloc<MaterialTechnique>();
technique->name = "example_lit_spot";
technique->flags = 0x10;
technique->passCount = 1;
auto& pass = technique->passArray[0];
pass.perPrimArgCount = 2;
pass.perObjArgCount = 2;
pass.stableArgCount = 10;
pass.customSamplerFlags = 0;
pass.vertexShader = GivenVertexShader("advanced.hlsl", memory);
pass.pixelShader = GivenPixelShader("advanced.hlsl", memory);
pass.vertexDecl = memory.Alloc<MaterialVertexDeclaration>();
auto& vertexDecl = *pass.vertexDecl;
vertexDecl.streamCount = 5;
vertexDecl.hasOptionalSource = false;
vertexDecl.routing.data[0].source = STREAM_SRC_POSITION;
vertexDecl.routing.data[0].dest = STREAM_DST_POSITION;
vertexDecl.routing.data[1].source = STREAM_SRC_COLOR;
vertexDecl.routing.data[1].dest = STREAM_DST_COLOR_0;
vertexDecl.routing.data[2].source = STREAM_SRC_TEXCOORD_0;
vertexDecl.routing.data[2].dest = STREAM_DST_TEXCOORD_0;
vertexDecl.routing.data[3].source = STREAM_SRC_NORMAL;
vertexDecl.routing.data[3].dest = STREAM_DST_NORMAL;
vertexDecl.routing.data[4].source = STREAM_SRC_TANGENT;
vertexDecl.routing.data[4].dest = STREAM_DST_TEXCOORD_2;
pass.args = memory.Alloc<MaterialShaderArgument>(14);
pass.args[0].type = MTL_ARG_CODE_VERTEX_CONST;
pass.args[0].dest = 4;
pass.args[0].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_WORLD_MATRIX;
pass.args[0].u.codeConst.firstRow = 0;
pass.args[0].u.codeConst.rowCount = 4;
pass.args[1].type = MTL_ARG_CODE_VERTEX_CONST;
pass.args[1].dest = 8;
pass.args[1].u.codeConst.index = CONST_SRC_CODE_BASE_LIGHTING_COORDS;
pass.args[1].u.codeConst.firstRow = 0;
pass.args[1].u.codeConst.rowCount = 1;
pass.args[2].type = MTL_ARG_CODE_VERTEX_CONST;
pass.args[2].dest = 0;
pass.args[2].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_VIEW_PROJECTION_MATRIX;
pass.args[2].u.codeConst.firstRow = 0;
pass.args[2].u.codeConst.rowCount = 4;
pass.args[3].type = MTL_ARG_CODE_PIXEL_SAMPLER;
pass.args[3].dest = 6;
pass.args[3].u.codeSampler = TEXTURE_SRC_CODE_LIGHT_ATTENUATION;
pass.args[4].type = MTL_ARG_MATERIAL_PIXEL_SAMPLER;
pass.args[4].dest = 5;
pass.args[4].u.nameHash = 0x59D30D0F;
pass.args[5].type = MTL_ARG_MATERIAL_PIXEL_SAMPLER;
pass.args[5].dest = 0;
pass.args[5].u.nameHash = 0xA0AB1041;
pass.args[6].type = MTL_ARG_CODE_VERTEX_CONST;
pass.args[6].dest = 21;
pass.args[6].u.codeConst.index = CONST_SRC_CODE_FOG;
pass.args[6].u.codeConst.firstRow = 0;
pass.args[6].u.codeConst.rowCount = 1;
pass.args[7].type = MTL_ARG_CODE_PIXEL_SAMPLER;
pass.args[7].dest = 4;
pass.args[7].u.codeSampler = TEXTURE_SRC_CODE_MODEL_LIGHTING;
pass.args[8].type = MTL_ARG_CODE_PIXEL_CONST;
pass.args[8].dest = 0;
pass.args[8].u.codeConst.index = CONST_SRC_CODE_FOG_COLOR;
pass.args[8].u.codeConst.firstRow = 0;
pass.args[8].u.codeConst.rowCount = 1;
pass.args[9].type = MTL_ARG_CODE_PIXEL_CONST;
pass.args[9].dest = 5;
pass.args[9].u.codeConst.index = CONST_SRC_CODE_LIGHTING_LOOKUP_SCALE;
pass.args[9].u.codeConst.firstRow = 0;
pass.args[9].u.codeConst.rowCount = 1;
pass.args[10].type = MTL_ARG_CODE_PIXEL_CONST;
pass.args[10].dest = 6;
pass.args[10].u.codeConst.index = CONST_SRC_CODE_LIGHT_POSITION;
pass.args[10].u.codeConst.firstRow = 0;
pass.args[10].u.codeConst.rowCount = 1;
pass.args[11].type = MTL_ARG_CODE_PIXEL_CONST;
pass.args[11].dest = 7;
pass.args[11].u.codeConst.index = CONST_SRC_CODE_LIGHT_DIFFUSE;
pass.args[11].u.codeConst.firstRow = 0;
pass.args[11].u.codeConst.rowCount = 1;
pass.args[12].type = MTL_ARG_CODE_PIXEL_CONST;
pass.args[12].dest = 8;
pass.args[12].u.codeConst.index = CONST_SRC_CODE_LIGHT_SPOTDIR;
pass.args[12].u.codeConst.firstRow = 0;
pass.args[12].u.codeConst.rowCount = 1;
pass.args[13].type = MTL_ARG_CODE_PIXEL_CONST;
pass.args[13].dest = 9;
pass.args[13].u.codeConst.index = CONST_SRC_CODE_LIGHT_SPOTFACTORS;
pass.args[13].u.codeConst.firstRow = 0;
pass.args[13].u.codeConst.rowCount = 1;
return technique;
}
MaterialTechniqueSet* GivenTechset(Zone& zone, MemoryManager& memory)
{
auto* techset = memory.Alloc<MaterialTechniqueSet>();
techset->name = "example_techset";
techset->worldVertFormat = MTL_WORLDVERT_TEX_4_NRM_2;
techset->techniques[TECHNIQUE_DEPTH_PREPASS] = GivenDepthPrepassTechnique(memory);
techset->techniques[TECHNIQUE_LIT_SPOT] = GivenLitSpotTechnique(memory);
zone.m_pools.AddAsset(std::make_unique<XAssetInfo<MaterialTechniqueSet>>(ASSET_TYPE_TECHNIQUE_SET, techset->name, techset));
return techset;
}
} // namespace
TEST_CASE("TechsetDumperIW3", "[iw3][techset][dumper]")
{
Zone zone("MockZone", 0, GameId::IW3, GamePlatform::PC);
zone.Register();
MemoryManager memory;
MockSearchPath mockObjPath;
MockOutputPath mockOutput;
AssetDumpingContext context(zone, "", mockOutput, mockObjPath, std::nullopt);
GivenTechset(zone, memory);
techset::DumperIW3 dumper(true);
SECTION("Can dump techset")
{
std::string expected(R"TECHSET(
"depth prepass":
example_zprepass;
"lit spot":
example_lit_spot;
)TECHSET");
dumper.Dump(context);
const auto* file = mockOutput.GetMockedFile("techsets/example_techset.techset");
REQUIRE(file);
REQUIRE(Trimmed(file->AsString()) == Trimmed(expected));
}
SECTION("Can dump simple technique")
{
std::string expected(R"TECHNIQUE(
// TECHNIQUE FLAGS: 0x4
{
stateMap "passthrough"; // TODO
vertexShader 3.0 "simple.hlsl"
{
// Omitted due to matching accessors: worldMatrix = constant.worldMatrix;
// Omitted due to matching accessors: viewProjectionMatrix = constant.viewProjectionMatrix;
}
pixelShader 3.0 "simple.hlsl"
{
}
vertex.position = code.position;
}
)TECHNIQUE");
dumper.Dump(context);
const auto* file = mockOutput.GetMockedFile("techniques/example_zprepass.tech");
REQUIRE(file);
REQUIRE(Trimmed(file->AsString()) == Trimmed(expected));
}
SECTION("Can dump advanced technique")
{
std::string expected(R"TECHNIQUE(
// TECHNIQUE FLAGS: 0x10
{
stateMap "passthrough"; // TODO
vertexShader 3.0 "advanced.hlsl"
{
// Omitted due to matching accessors: worldMatrix = constant.worldMatrix;
// Omitted due to matching accessors: baseLightingCoords = constant.baseLightingCoords;
// Omitted due to matching accessors: viewProjectionMatrix = constant.viewProjectionMatrix;
// Omitted due to matching accessors: fogConsts = constant.fogConsts;
}
pixelShader 3.0 "advanced.hlsl"
{
// Omitted due to matching accessors: attenuationSampler = sampler.attenuationSampler;
normalMapSampler = material.normalMap;
colorMapSampler = material.colorMap;
// Omitted due to matching accessors: modelLightingSampler = sampler.modelLightingSampler;
// Omitted due to matching accessors: fogColor = constant.fogColor;
// Omitted due to matching accessors: lightingLookupScale = constant.lightingLookupScale;
// Omitted due to matching accessors: lightPosition = constant.lightPosition;
// Omitted due to matching accessors: lightDiffuse = constant.lightDiffuse;
// Omitted due to matching accessors: lightSpotDir = constant.lightSpotDir;
// Omitted due to matching accessors: lightSpotFactors = constant.lightSpotFactors;
}
vertex.position = code.position;
vertex.color[0] = code.color;
vertex.texcoord[0] = code.texcoord[0];
vertex.normal = code.normal;
vertex.texcoord[2] = code.tangent;
}
)TECHNIQUE");
dumper.Dump(context);
const auto* file = mockOutput.GetMockedFile("techniques/example_lit_spot.tech");
REQUIRE(file);
REQUIRE(Trimmed(file->AsString()) == Trimmed(expected));
}
}
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