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https://github.com/wheremyfoodat/Panda3DS.git
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18df066463
* Initialize catch-2 based unit tests * Add nihstro submodule Enabled only during testing to help with assembling shaders in-code. * Implement `ADD` instruction unit-test * Add arithmetic/logical instruction unit tests * Add embedded catch2 submodule Will use the host catch2 if available.
229 lines
No EOL
9 KiB
C++
229 lines
No EOL
9 KiB
C++
#include <nihstro/inline_assembly.h>
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#include <PICA/dynapica/shader_rec.hpp>
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#include <PICA/shader.hpp>
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#include <catch2/catch_approx.hpp>
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#include <catch2/catch_test_macros.hpp>
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#include <initializer_list>
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#include <memory>
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using namespace Floats;
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static const nihstro::SourceRegister input0 = nihstro::SourceRegister::MakeInput(0);
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static const nihstro::SourceRegister input1 = nihstro::SourceRegister::MakeInput(1);
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static const nihstro::DestRegister output0 = nihstro::DestRegister::MakeOutput(0);
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static std::unique_ptr<PICAShader> assembleVertexShader(std::initializer_list<nihstro::InlineAsm> code) {
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const auto shaderBinary = nihstro::InlineAsm::CompileToRawBinary(code);
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auto newShader = std::make_unique<PICAShader>(ShaderType::Vertex);
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newShader->reset();
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for (const nihstro::Instruction& instruction : shaderBinary.program) {
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newShader->uploadWord(instruction.hex);
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}
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for (const nihstro::SwizzlePattern& swizzle : shaderBinary.swizzle_table) {
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newShader->uploadDescriptor(swizzle.hex);
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}
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newShader->finalize();
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return newShader;
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}
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class VertexShaderTest {
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private:
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std::unique_ptr<PICAShader> shader;
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public:
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explicit VertexShaderTest(std::initializer_list<nihstro::InlineAsm> code) : shader(assembleVertexShader(code)) {}
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// Multiple inputs, singular scalar output
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float runScalar(std::initializer_list<float> inputs) {
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usize inputIndex = 0;
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for (const float& input : inputs) {
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const std::array<Floats::f24, 4> input_vec = std::array<Floats::f24, 4>{f24::fromFloat32(input), f24::zero(), f24::zero(), f24::zero()};
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shader->inputs[inputIndex++] = input_vec;
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}
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shader->run();
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return shader->outputs[0][0];
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}
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static std::unique_ptr<VertexShaderTest> assembleTest(std::initializer_list<nihstro::InlineAsm> code) {
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return std::make_unique<VertexShaderTest>(code);
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}
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};
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TEST_CASE("ADD", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::ADD, output0, input0, input1},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({+1.0f, -1.0f}) == +0.0f);
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REQUIRE(shader->runScalar({+0.0f, -0.0f}) == -0.0f);
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REQUIRE(std::isnan(shader->runScalar({+INFINITY, -INFINITY})));
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REQUIRE(std::isinf(shader->runScalar({INFINITY, +1.0f})));
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REQUIRE(std::isinf(shader->runScalar({INFINITY, -1.0f})));
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}
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TEST_CASE("MUL", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::MUL, output0, input0, input1},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({+1.0f, -1.0f}) == -1.0f);
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REQUIRE(shader->runScalar({-1.0f, +1.0f}) == -1.0f);
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REQUIRE(shader->runScalar({INFINITY, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({+INFINITY, +INFINITY}) == INFINITY);
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REQUIRE(shader->runScalar({+INFINITY, -INFINITY}) == -INFINITY);
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REQUIRE(std::isnan(shader->runScalar({NAN, 0.0f})));
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}
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TEST_CASE("RCP", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::RCP, output0, input0},
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{nihstro::OpCode::Id::END},
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});
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// REQUIRE(shader->RunScalar({-0.0f}) == INFINITY); // Violates IEEE
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REQUIRE(shader->runScalar({0.0f}) == INFINITY);
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REQUIRE(shader->runScalar({INFINITY}) == 0.0f);
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REQUIRE(std::isnan(shader->runScalar({NAN})));
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REQUIRE(shader->runScalar({16.0f}) == Catch::Approx(0.0625f).margin(0.001f));
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REQUIRE(shader->runScalar({8.0f}) == Catch::Approx(0.125f).margin(0.001f));
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REQUIRE(shader->runScalar({4.0f}) == Catch::Approx(0.25f).margin(0.001f));
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REQUIRE(shader->runScalar({2.0f}) == Catch::Approx(0.5f).margin(0.001f));
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REQUIRE(shader->runScalar({1.0f}) == Catch::Approx(1.0f).margin(0.001f));
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REQUIRE(shader->runScalar({0.5f}) == Catch::Approx(2.0f).margin(0.001f));
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REQUIRE(shader->runScalar({0.25f}) == Catch::Approx(4.0f).margin(0.001f));
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REQUIRE(shader->runScalar({0.125f}) == Catch::Approx(8.0f).margin(0.002f));
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REQUIRE(shader->runScalar({0.0625f}) == Catch::Approx(16.0f).margin(0.004f));
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}
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TEST_CASE("RSQ", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::RSQ, output0, input0},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({-0.0f}) == INFINITY);
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REQUIRE(shader->runScalar({INFINITY}) == 0.0f);
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REQUIRE(std::isnan(shader->runScalar({-2.0f})));
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REQUIRE(std::isnan(shader->runScalar({-INFINITY})));
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REQUIRE(std::isnan(shader->runScalar({NAN})));
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REQUIRE(shader->runScalar({16.0f}) == Catch::Approx(0.25f).margin(0.001f));
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REQUIRE(shader->runScalar({8.0f}) == Catch::Approx(1.0f / std::sqrt(8.0f)).margin(0.001f));
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REQUIRE(shader->runScalar({4.0f}) == Catch::Approx(0.5f).margin(0.001f));
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REQUIRE(shader->runScalar({2.0f}) == Catch::Approx(1.0f / std::sqrt(2.0f)).margin(0.001f));
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REQUIRE(shader->runScalar({1.0f}) == Catch::Approx(1.0f).margin(0.001f));
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REQUIRE(shader->runScalar({0.5f}) == Catch::Approx(1.0f / std::sqrt(0.5f)).margin(0.001f));
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REQUIRE(shader->runScalar({0.25f}) == Catch::Approx(2.0f).margin(0.001f));
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REQUIRE(shader->runScalar({0.125f}) == Catch::Approx(1.0 / std::sqrt(0.125)).margin(0.002f));
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REQUIRE(shader->runScalar({0.0625f}) == Catch::Approx(4.0f).margin(0.004f));
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}
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TEST_CASE("LG2", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::LG2, output0, input0},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(std::isnan(shader->runScalar({NAN})));
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REQUIRE(std::isnan(shader->runScalar({-1.f})));
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REQUIRE(std::isinf(shader->runScalar({0.f})));
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REQUIRE(shader->runScalar({4.f}) == Catch::Approx(2.f));
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REQUIRE(shader->runScalar({64.f}) == Catch::Approx(6.f));
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REQUIRE(shader->runScalar({1.e24f}) == Catch::Approx(79.7262742773f));
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}
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TEST_CASE("EX2", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::EX2, output0, input0},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(std::isnan(shader->runScalar({NAN})));
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REQUIRE(shader->runScalar({-800.f}) == Catch::Approx(0.f));
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REQUIRE(shader->runScalar({0.f}) == Catch::Approx(1.f));
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REQUIRE(shader->runScalar({2.f}) == Catch::Approx(4.f));
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REQUIRE(shader->runScalar({6.f}) == Catch::Approx(64.f));
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REQUIRE(shader->runScalar({79.7262742773f}) == Catch::Approx(1.e24f));
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REQUIRE(std::isinf(shader->runScalar({800.f})));
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}
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TEST_CASE("MAX", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::MAX, output0, input0, input1},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({1.0f, 0.0f}) == 1.0f);
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REQUIRE(shader->runScalar({0.0f, 1.0f}) == 1.0f);
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REQUIRE(shader->runScalar({0.0f, +INFINITY}) == +INFINITY);
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REQUIRE(shader->runScalar({0.0f, -INFINITY}) == -INFINITY);
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REQUIRE(shader->runScalar({NAN, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({-INFINITY, +INFINITY}) == +INFINITY);
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REQUIRE(std::isnan(shader->runScalar({0.0f, NAN})));
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}
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TEST_CASE("MIN", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::MIN, output0, input0, input1},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({1.0f, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({0.0f, 1.0f}) == 0.0f);
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REQUIRE(shader->runScalar({0.0f, +INFINITY}) == 0.0f);
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REQUIRE(shader->runScalar({0.0f, -INFINITY}) == -INFINITY);
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REQUIRE(shader->runScalar({NAN, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({-INFINITY, +INFINITY}) == -INFINITY);
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REQUIRE(std::isnan(shader->runScalar({0.0f, NAN})));
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}
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TEST_CASE("SGE", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::SGE, output0, input0, input1},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({INFINITY, 0.0f}) == 1.0f);
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REQUIRE(shader->runScalar({0.0f, INFINITY}) == 0.0f);
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REQUIRE(shader->runScalar({NAN, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({0.0f, NAN}) == 0.0f);
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REQUIRE(shader->runScalar({+INFINITY, +INFINITY}) == 1.0f);
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REQUIRE(shader->runScalar({+INFINITY, -INFINITY}) == 1.0f);
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REQUIRE(shader->runScalar({-INFINITY, +INFINITY}) == 0.0f);
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REQUIRE(shader->runScalar({+1.0f, -1.0f}) == 1.0f);
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REQUIRE(shader->runScalar({-1.0f, +1.0f}) == 0.0f);
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}
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TEST_CASE("SLT", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::SLT, output0, input0, input1},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({INFINITY, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({0.0f, INFINITY}) == 1.0f);
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REQUIRE(shader->runScalar({NAN, 0.0f}) == 0.0f);
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REQUIRE(shader->runScalar({0.0f, NAN}) == 0.0f);
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REQUIRE(shader->runScalar({+INFINITY, +INFINITY}) == 0.0f);
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REQUIRE(shader->runScalar({+INFINITY, -INFINITY}) == 0.0f);
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REQUIRE(shader->runScalar({-INFINITY, +INFINITY}) == 1.0f);
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REQUIRE(shader->runScalar({+1.0f, -1.0f}) == 0.0f);
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REQUIRE(shader->runScalar({-1.0f, +1.0f}) == 1.0f);
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}
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TEST_CASE("FLR", "[shader][vertex]") {
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const auto shader = VertexShaderTest::assembleTest({
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{nihstro::OpCode::Id::FLR, output0, input0},
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{nihstro::OpCode::Id::END},
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});
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REQUIRE(shader->runScalar({0.5}) == 0.0f);
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REQUIRE(shader->runScalar({-0.5}) == -1.0f);
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REQUIRE(shader->runScalar({1.5}) == 1.0f);
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REQUIRE(shader->runScalar({-1.5}) == -2.0f);
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REQUIRE(std::isnan(shader->runScalar({NAN})));
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REQUIRE(std::isinf(shader->runScalar({INFINITY})));
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} |