dolphin/Source/UnitTests/VideoCommon/VertexLoaderTest.cpp
Pokechu22 0bcd3c79bb VertexLoader: Eliminate use of DataReader
DataReader is generally jank - it has a start and end pointer, but the end pointer is generally not used, and all of the vertex loaders mostly bypassed it anyways.

Wrapper code (the vertex loaer test, as well as Fifo.cpp and OpcodeDecoding.cpp) still uses it, as does the software vertex loader (which is not a subclass of VertexLoader). These can probably be eliminated later.
2022-11-22 17:17:11 -08:00

779 lines
24 KiB
C++

// Copyright 2014 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <limits>
#include <memory>
#include <tuple>
#include <type_traits>
#include <unordered_set>
#include <gtest/gtest.h> // NOLINT
#include "Common/BitUtils.h"
#include "Common/Common.h"
#include "Common/MathUtil.h"
#include "VideoCommon/CPMemory.h"
#include "VideoCommon/DataReader.h"
#include "VideoCommon/OpcodeDecoding.h"
#include "VideoCommon/VertexLoaderBase.h"
#include "VideoCommon/VertexLoaderManager.h"
TEST(VertexLoaderUID, UniqueEnough)
{
std::unordered_set<VertexLoaderUID> uids;
TVtxDesc vtx_desc;
VAT vat;
uids.insert(VertexLoaderUID(vtx_desc, vat));
vtx_desc.low.Hex = 0x76543210;
vtx_desc.high.Hex = 0xFEDCBA98;
EXPECT_EQ(uids.end(), uids.find(VertexLoaderUID(vtx_desc, vat)));
uids.insert(VertexLoaderUID(vtx_desc, vat));
vat.g0.Hex = 0xFFFFFFFF;
vat.g1.Hex = 0xFFFFFFFF;
vat.g2.Hex = 0xFFFFFFFF;
EXPECT_EQ(uids.end(), uids.find(VertexLoaderUID(vtx_desc, vat)));
uids.insert(VertexLoaderUID(vtx_desc, vat));
}
static u8 input_memory[16 * 1024 * 1024];
static u8 output_memory[16 * 1024 * 1024];
class VertexLoaderTest : public testing::Test
{
protected:
void SetUp() override
{
memset(input_memory, 0, sizeof(input_memory));
memset(output_memory, 0xFF, sizeof(input_memory));
m_vtx_desc.low.Hex = 0;
m_vtx_desc.high.Hex = 0;
m_vtx_attr.g0.Hex = 0;
m_vtx_attr.g1.Hex = 0;
m_vtx_attr.g2.Hex = 0;
m_loader = nullptr;
ResetPointers();
}
void CreateAndCheckSizes(size_t input_size, size_t output_size)
{
m_loader = VertexLoaderBase::CreateVertexLoader(m_vtx_desc, m_vtx_attr);
ASSERT_EQ(input_size, m_loader->m_vertex_size);
ASSERT_EQ((int)output_size, m_loader->m_native_vtx_decl.stride);
}
template <typename T>
void Input(T val)
{
// Write swapped.
m_src.Write<T, true>(val);
}
void ExpectOut(float expected)
{
// Read unswapped.
const float actual = m_dst.Read<float, false>();
if (!actual || actual != actual)
EXPECT_EQ(Common::BitCast<u32>(expected), Common::BitCast<u32>(actual));
else
EXPECT_EQ(expected, actual);
}
void RunVertices(int count, int expected_count = -1)
{
if (expected_count == -1)
expected_count = count;
ResetPointers();
int actual_count = m_loader->RunVertices(m_src.GetPointer(), m_dst.GetPointer(), count);
EXPECT_EQ(actual_count, expected_count);
}
void ResetPointers()
{
m_src = DataReader(input_memory, input_memory + sizeof(input_memory));
m_dst = DataReader(output_memory, output_memory + sizeof(output_memory));
}
DataReader m_src;
DataReader m_dst;
TVtxDesc m_vtx_desc;
VAT m_vtx_attr;
std::unique_ptr<VertexLoaderBase> m_loader;
};
class VertexLoaderParamTest
: public VertexLoaderTest,
public ::testing::WithParamInterface<
std::tuple<VertexComponentFormat, ComponentFormat, CoordComponentCount, int>>
{
};
INSTANTIATE_TEST_CASE_P(
AllCombinations, VertexLoaderParamTest,
::testing::Combine(
::testing::Values(VertexComponentFormat::Direct, VertexComponentFormat::Index8,
VertexComponentFormat::Index16),
::testing::Values(ComponentFormat::UByte, ComponentFormat::Byte, ComponentFormat::UShort,
ComponentFormat::Short, ComponentFormat::Float),
::testing::Values(CoordComponentCount::XY, CoordComponentCount::XYZ),
::testing::Values(0, 1, 31) // frac
));
TEST_P(VertexLoaderParamTest, PositionAll)
{
VertexComponentFormat addr;
ComponentFormat format;
CoordComponentCount elements;
int frac;
std::tie(addr, format, elements, frac) = GetParam();
this->m_vtx_desc.low.Position = addr;
this->m_vtx_attr.g0.PosFormat = format;
this->m_vtx_attr.g0.PosElements = elements;
this->m_vtx_attr.g0.PosFrac = frac;
this->m_vtx_attr.g0.ByteDequant = true;
const u32 elem_size = GetElementSize(format);
const u32 elem_count = elements == CoordComponentCount::XY ? 2 : 3;
std::vector<float> values = {
std::numeric_limits<float>::lowest(),
std::numeric_limits<float>::denorm_min(),
std::numeric_limits<float>::min(),
std::numeric_limits<float>::max(),
std::numeric_limits<float>::quiet_NaN(),
std::numeric_limits<float>::infinity(),
-0x8000,
-0x80,
-1,
-0.0,
0,
1,
123,
0x7F,
0xFF,
0x7FFF,
0xFFFF,
12345678,
};
ASSERT_EQ(0u, values.size() % 2);
ASSERT_EQ(0u, values.size() % 3);
int count = (int)values.size() / elem_count;
size_t input_size = elem_count * elem_size;
if (IsIndexed(addr))
{
input_size = addr == VertexComponentFormat::Index8 ? 1 : 2;
for (int i = 0; i < count; i++)
if (addr == VertexComponentFormat::Index8)
Input<u8>(i);
else
Input<u16>(i);
VertexLoaderManager::cached_arraybases[CPArray::Position] = m_src.GetPointer();
g_main_cp_state.array_strides[CPArray::Position] = elem_count * elem_size;
}
CreateAndCheckSizes(input_size, elem_count * sizeof(float));
for (float value : values)
{
switch (format)
{
case ComponentFormat::UByte:
Input(MathUtil::SaturatingCast<u8>(value));
break;
case ComponentFormat::Byte:
Input(MathUtil::SaturatingCast<s8>(value));
break;
case ComponentFormat::UShort:
Input(MathUtil::SaturatingCast<u16>(value));
break;
case ComponentFormat::Short:
Input(MathUtil::SaturatingCast<s16>(value));
break;
case ComponentFormat::Float:
Input(value);
break;
}
}
RunVertices(count);
float scale = 1.f / (1u << (format == ComponentFormat::Float ? 0 : frac));
for (auto iter = values.begin(); iter != values.end();)
{
float f, g;
switch (format)
{
case ComponentFormat::UByte:
f = MathUtil::SaturatingCast<u8>(*iter++);
g = MathUtil::SaturatingCast<u8>(*iter++);
break;
case ComponentFormat::Byte:
f = MathUtil::SaturatingCast<s8>(*iter++);
g = MathUtil::SaturatingCast<s8>(*iter++);
break;
case ComponentFormat::UShort:
f = MathUtil::SaturatingCast<u16>(*iter++);
g = MathUtil::SaturatingCast<u16>(*iter++);
break;
case ComponentFormat::Short:
f = MathUtil::SaturatingCast<s16>(*iter++);
g = MathUtil::SaturatingCast<s16>(*iter++);
break;
case ComponentFormat::Float:
f = *iter++;
g = *iter++;
break;
default:
FAIL() << "Unknown format";
}
ExpectOut(f * scale);
ExpectOut(g * scale);
}
}
TEST_F(VertexLoaderTest, PositionIndex16FloatXY)
{
m_vtx_desc.low.Position = VertexComponentFormat::Index16;
m_vtx_attr.g0.PosFormat = ComponentFormat::Float;
CreateAndCheckSizes(sizeof(u16), 2 * sizeof(float));
Input<u16>(1);
Input<u16>(0);
VertexLoaderManager::cached_arraybases[CPArray::Position] = m_src.GetPointer();
g_main_cp_state.array_strides[CPArray::Position] = sizeof(float); // ;)
Input(1.f);
Input(2.f);
Input(3.f);
RunVertices(2);
ExpectOut(2);
ExpectOut(3);
ExpectOut(1);
ExpectOut(2);
}
class VertexLoaderSpeedTest : public VertexLoaderTest,
public ::testing::WithParamInterface<std::tuple<ComponentFormat, int>>
{
};
INSTANTIATE_TEST_CASE_P(
FormatsAndElements, VertexLoaderSpeedTest,
::testing::Combine(::testing::Values(ComponentFormat::UByte, ComponentFormat::Byte,
ComponentFormat::UShort, ComponentFormat::Short,
ComponentFormat::Float),
::testing::Values(0, 1)));
TEST_P(VertexLoaderSpeedTest, PositionDirectAll)
{
ComponentFormat format;
int elements_i;
std::tie(format, elements_i) = GetParam();
CoordComponentCount elements = static_cast<CoordComponentCount>(elements_i);
fmt::print("format: {}, elements: {}\n", format, elements);
const u32 elem_count = elements == CoordComponentCount::XY ? 2 : 3;
m_vtx_desc.low.Position = VertexComponentFormat::Direct;
m_vtx_attr.g0.PosFormat = format;
m_vtx_attr.g0.PosElements = elements;
const size_t elem_size = GetElementSize(format);
CreateAndCheckSizes(elem_count * elem_size, elem_count * sizeof(float));
for (int i = 0; i < 1000; ++i)
RunVertices(100000);
}
TEST_P(VertexLoaderSpeedTest, TexCoordSingleElement)
{
ComponentFormat format;
int elements_i;
std::tie(format, elements_i) = GetParam();
TexComponentCount elements = static_cast<TexComponentCount>(elements_i);
fmt::print("format: {}, elements: {}\n", format, elements);
const u32 elem_count = elements == TexComponentCount::S ? 1 : 2;
m_vtx_desc.low.Position = VertexComponentFormat::Direct;
m_vtx_attr.g0.PosFormat = ComponentFormat::Byte;
m_vtx_desc.high.Tex0Coord = VertexComponentFormat::Direct;
m_vtx_attr.g0.Tex0CoordFormat = format;
m_vtx_attr.g0.Tex0CoordElements = elements;
const size_t elem_size = GetElementSize(format);
CreateAndCheckSizes(2 * sizeof(s8) + elem_count * elem_size,
2 * sizeof(float) + elem_count * sizeof(float));
for (int i = 0; i < 1000; ++i)
RunVertices(100000);
}
TEST_F(VertexLoaderTest, LargeFloatVertexSpeed)
{
// Enables most attributes in floating point indexed mode to test speed.
m_vtx_desc.low.PosMatIdx = 1;
m_vtx_desc.low.Tex0MatIdx = 1;
m_vtx_desc.low.Tex1MatIdx = 1;
m_vtx_desc.low.Tex2MatIdx = 1;
m_vtx_desc.low.Tex3MatIdx = 1;
m_vtx_desc.low.Tex4MatIdx = 1;
m_vtx_desc.low.Tex5MatIdx = 1;
m_vtx_desc.low.Tex6MatIdx = 1;
m_vtx_desc.low.Tex7MatIdx = 1;
m_vtx_desc.low.Position = VertexComponentFormat::Index16;
m_vtx_desc.low.Normal = VertexComponentFormat::Index16;
m_vtx_desc.low.Color0 = VertexComponentFormat::Index16;
m_vtx_desc.low.Color1 = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex0Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex1Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex2Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex3Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex4Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex5Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex6Coord = VertexComponentFormat::Index16;
m_vtx_desc.high.Tex7Coord = VertexComponentFormat::Index16;
m_vtx_attr.g0.PosElements = CoordComponentCount::XYZ;
m_vtx_attr.g0.PosFormat = ComponentFormat::Float;
m_vtx_attr.g0.NormalElements = NormalComponentCount::NTB;
m_vtx_attr.g0.NormalFormat = ComponentFormat::Float;
m_vtx_attr.g0.Color0Elements = ColorComponentCount::RGBA;
m_vtx_attr.g0.Color0Comp = ColorFormat::RGBA8888;
m_vtx_attr.g0.Color1Elements = ColorComponentCount::RGBA;
m_vtx_attr.g0.Color1Comp = ColorFormat::RGBA8888;
m_vtx_attr.g0.Tex0CoordElements = TexComponentCount::ST;
m_vtx_attr.g0.Tex0CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex1CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex1CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex2CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex2CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex3CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex3CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex4CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex4CoordFormat = ComponentFormat::Float;
m_vtx_attr.g2.Tex5CoordElements = TexComponentCount::ST;
m_vtx_attr.g2.Tex5CoordFormat = ComponentFormat::Float;
m_vtx_attr.g2.Tex6CoordElements = TexComponentCount::ST;
m_vtx_attr.g2.Tex6CoordFormat = ComponentFormat::Float;
m_vtx_attr.g2.Tex7CoordElements = TexComponentCount::ST;
m_vtx_attr.g2.Tex7CoordFormat = ComponentFormat::Float;
CreateAndCheckSizes(33, 156);
for (int i = 0; i < NUM_VERTEX_COMPONENT_ARRAYS; i++)
{
VertexLoaderManager::cached_arraybases[static_cast<CPArray>(i)] = m_src.GetPointer();
g_main_cp_state.array_strides[static_cast<CPArray>(i)] = 129;
}
// This test is only done 100x in a row since it's ~20x slower using the
// current vertex loader implementation.
for (int i = 0; i < 100; ++i)
RunVertices(100000);
}
TEST_F(VertexLoaderTest, DirectAllComponents)
{
m_vtx_desc.low.PosMatIdx = 1;
m_vtx_desc.low.Tex0MatIdx = 1;
m_vtx_desc.low.Tex1MatIdx = 1;
m_vtx_desc.low.Tex2MatIdx = 1;
m_vtx_desc.low.Tex3MatIdx = 1;
m_vtx_desc.low.Tex4MatIdx = 1;
m_vtx_desc.low.Tex5MatIdx = 1;
m_vtx_desc.low.Tex6MatIdx = 1;
m_vtx_desc.low.Tex7MatIdx = 1;
m_vtx_desc.low.Position = VertexComponentFormat::Direct;
m_vtx_desc.low.Normal = VertexComponentFormat::Direct;
m_vtx_desc.low.Color0 = VertexComponentFormat::Direct;
m_vtx_desc.low.Color1 = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex0Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex1Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex2Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex3Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex4Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex5Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex6Coord = VertexComponentFormat::Direct;
m_vtx_desc.high.Tex7Coord = VertexComponentFormat::Direct;
m_vtx_attr.g0.PosElements = CoordComponentCount::XYZ;
m_vtx_attr.g0.PosFormat = ComponentFormat::Float;
m_vtx_attr.g0.NormalElements = NormalComponentCount::NTB;
m_vtx_attr.g0.NormalFormat = ComponentFormat::Float;
m_vtx_attr.g0.Color0Elements = ColorComponentCount::RGBA;
m_vtx_attr.g0.Color0Comp = ColorFormat::RGBA8888;
m_vtx_attr.g0.Color1Elements = ColorComponentCount::RGBA;
m_vtx_attr.g0.Color1Comp = ColorFormat::RGBA8888;
m_vtx_attr.g0.Tex0CoordElements = TexComponentCount::ST;
m_vtx_attr.g0.Tex0CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex1CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex1CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex2CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex2CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex3CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex3CoordFormat = ComponentFormat::Float;
m_vtx_attr.g1.Tex4CoordElements = TexComponentCount::ST;
m_vtx_attr.g1.Tex4CoordFormat = ComponentFormat::Float;
m_vtx_attr.g2.Tex5CoordElements = TexComponentCount::ST;
m_vtx_attr.g2.Tex5CoordFormat = ComponentFormat::Float;
m_vtx_attr.g2.Tex6CoordElements = TexComponentCount::ST;
m_vtx_attr.g2.Tex6CoordFormat = ComponentFormat::Float;
m_vtx_attr.g2.Tex7CoordElements = TexComponentCount::ST;
m_vtx_attr.g2.Tex7CoordFormat = ComponentFormat::Float;
CreateAndCheckSizes(129, 39 * sizeof(float));
// Pos matrix idx
Input<u8>(20);
// Tex matrix idx
Input<u8>(0);
Input<u8>(1);
Input<u8>(2);
Input<u8>(3);
Input<u8>(4);
Input<u8>(5);
Input<u8>(6);
Input<u8>(7);
// Position
Input(-1.0f);
Input(-2.0f);
Input(-3.0f);
// Normal
Input(-4.0f);
Input(-5.0f);
Input(-6.0f);
// Tangent
Input(-7.0f);
Input(-8.0f);
Input(-9.0f);
// Binormal
Input(-10.0f);
Input(-11.0f);
Input(-12.0f);
// Colors
Input<u32>(0x01234567);
Input<u32>(0x89abcdef);
// Texture coordinates
Input(0.1f);
Input(-0.9f);
Input(1.1f);
Input(-1.9f);
Input(2.1f);
Input(-2.9f);
Input(3.1f);
Input(-3.9f);
Input(4.1f);
Input(-4.9f);
Input(5.1f);
Input(-5.9f);
Input(6.1f);
Input(-6.9f);
Input(7.1f);
Input(-7.9f);
RunVertices(1);
// Position matrix
ASSERT_EQ(m_loader->m_native_vtx_decl.posmtx.offset, 0 * sizeof(float));
EXPECT_EQ((m_dst.Read<u32, false>()), 20u);
// Position
ASSERT_EQ(m_loader->m_native_vtx_decl.position.offset, 1 * sizeof(float));
ExpectOut(-1.0f);
ExpectOut(-2.0f);
ExpectOut(-3.0f);
// Normal
ASSERT_EQ(m_loader->m_native_vtx_decl.normals[0].offset, 4 * sizeof(float));
ExpectOut(-4.0f);
ExpectOut(-5.0f);
ExpectOut(-6.0f);
// Tangent
ASSERT_EQ(m_loader->m_native_vtx_decl.normals[1].offset, 7 * sizeof(float));
ExpectOut(-7.0f);
ExpectOut(-8.0f);
ExpectOut(-9.0f);
// Binormal
ASSERT_EQ(m_loader->m_native_vtx_decl.normals[2].offset, 10 * sizeof(float));
ExpectOut(-10.0f);
ExpectOut(-11.0f);
ExpectOut(-12.0f);
// Colors
ASSERT_EQ(m_loader->m_native_vtx_decl.colors[0].offset, 13 * sizeof(float));
EXPECT_EQ((m_dst.Read<u32, true>()), 0x01234567u);
ASSERT_EQ(m_loader->m_native_vtx_decl.colors[1].offset, 14 * sizeof(float));
EXPECT_EQ((m_dst.Read<u32, true>()), 0x89abcdefu);
// Texture coordinates and matrices (interleaved)
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[0].offset, 15 * sizeof(float));
ExpectOut(0.1f); // S
ExpectOut(-0.9f); // T
ExpectOut(0.0f); // matrix (yes, a float)
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[1].offset, 18 * sizeof(float));
ExpectOut(1.1f);
ExpectOut(-1.9f);
ExpectOut(1.0f);
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[2].offset, 21 * sizeof(float));
ExpectOut(2.1f);
ExpectOut(-2.9f);
ExpectOut(2.0f);
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[3].offset, 24 * sizeof(float));
ExpectOut(3.1f);
ExpectOut(-3.9f);
ExpectOut(3.0f);
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[4].offset, 27 * sizeof(float));
ExpectOut(4.1f);
ExpectOut(-4.9f);
ExpectOut(4.0f);
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[5].offset, 30 * sizeof(float));
ExpectOut(5.1f);
ExpectOut(-5.9f);
ExpectOut(5.0f);
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[6].offset, 33 * sizeof(float));
ExpectOut(6.1f);
ExpectOut(-6.9f);
ExpectOut(6.0f);
ASSERT_EQ(m_loader->m_native_vtx_decl.texcoords[7].offset, 36 * sizeof(float));
ExpectOut(7.1f);
ExpectOut(-7.9f);
ExpectOut(7.0f);
}
class VertexLoaderNormalTest
: public VertexLoaderTest,
public ::testing::WithParamInterface<
std::tuple<VertexComponentFormat, ComponentFormat, NormalComponentCount, bool>>
{
};
INSTANTIATE_TEST_CASE_P(
AllCombinations, VertexLoaderNormalTest,
::testing::Combine(
::testing::Values(VertexComponentFormat::NotPresent, VertexComponentFormat::Direct,
VertexComponentFormat::Index8, VertexComponentFormat::Index16),
::testing::Values(ComponentFormat::UByte, ComponentFormat::Byte, ComponentFormat::UShort,
ComponentFormat::Short, ComponentFormat::Float),
::testing::Values(NormalComponentCount::N, NormalComponentCount::NTB),
::testing::Values(false, true)));
TEST_P(VertexLoaderNormalTest, NormalAll)
{
VertexComponentFormat addr;
ComponentFormat format;
NormalComponentCount elements;
bool index3;
std::tie(addr, format, elements, index3) = GetParam();
m_vtx_desc.low.Position = VertexComponentFormat::Direct;
m_vtx_attr.g0.PosFormat = ComponentFormat::Float;
m_vtx_attr.g0.PosElements = CoordComponentCount::XY;
m_vtx_attr.g0.PosFrac = 0;
m_vtx_desc.low.Normal = addr;
m_vtx_attr.g0.NormalFormat = format;
m_vtx_attr.g0.NormalElements = elements;
m_vtx_attr.g0.NormalIndex3 = index3;
const u32 in_size = [&]() -> u32 {
if (addr == VertexComponentFormat::NotPresent)
return 0;
if (IsIndexed(addr))
{
const u32 base_size = (addr == VertexComponentFormat::Index8) ? 1 : 2;
if (elements == NormalComponentCount::NTB)
return (index3 ? 3 : 1) * base_size;
else
return 1 * base_size;
}
else
{
const u32 base_count = (elements == NormalComponentCount::NTB) ? 9 : 3;
const u32 base_size = GetElementSize(format);
return base_count * base_size;
}
}();
const u32 out_size = [&]() -> u32 {
if (addr == VertexComponentFormat::NotPresent)
return 0;
const u32 base_count = (elements == NormalComponentCount::NTB) ? 9 : 3;
return base_count * sizeof(float);
}();
CreateAndCheckSizes(2 * sizeof(float) + in_size, 2 * sizeof(float) + out_size);
auto input_with_expected_type = [&](float value) {
switch (format)
{
case ComponentFormat::UByte:
Input<u8>(value * (1 << 7));
break;
case ComponentFormat::Byte:
Input<s8>(value * (1 << 6));
break;
case ComponentFormat::UShort:
Input<u16>(value * (1 << 15));
break;
case ComponentFormat::Short:
Input<s16>(value * (1 << 14));
break;
case ComponentFormat::Float:
default:
Input<float>(value);
break;
}
};
auto create_normal = [&](int counter_base) {
if (addr == VertexComponentFormat::Direct)
{
input_with_expected_type(counter_base / 32.f);
input_with_expected_type((counter_base + 1) / 32.f);
input_with_expected_type((counter_base + 2) / 32.f);
}
else if (addr == VertexComponentFormat::Index8)
{
// We set up arrays so that this works
Input<u8>(counter_base);
}
else if (addr == VertexComponentFormat::Index16)
{
Input<u16>(counter_base);
}
// Do nothing for NotPresent
};
auto create_tangent_and_binormal = [&](int counter_base) {
if (IsIndexed(addr))
{
// With NormalIndex3, specifying the same index 3 times should give the same result
// as specifying one index in non-index3 mode (as the index is biased by bytes).
// If index3 is disabled, we don't want to write any more indices.
if (index3)
{
// Tangent
create_normal(counter_base);
// Binormal
create_normal(counter_base);
}
}
else
{
// Tangent
create_normal(counter_base + 3);
// Binormal
create_normal(counter_base + 6);
}
};
// Create our two vertices
// Position 1
Input(4.0f);
Input(8.0f);
// Normal 1
create_normal(1);
if (elements == NormalComponentCount::NTB)
{
create_tangent_and_binormal(1);
}
// Position 2
Input(6.0f);
Input(12.0f);
// Normal 1
create_normal(10);
if (elements == NormalComponentCount::NTB)
{
create_tangent_and_binormal(10);
}
// Create an array for indexed representations
for (int i = 0; i < NUM_VERTEX_COMPONENT_ARRAYS; i++)
{
VertexLoaderManager::cached_arraybases[static_cast<CPArray>(i)] = m_src.GetPointer();
g_main_cp_state.array_strides[static_cast<CPArray>(i)] = GetElementSize(format);
}
for (int i = 0; i < 32; i++)
input_with_expected_type(i / 32.f);
// Pre-fill these values to detect if they're modified
VertexLoaderManager::binormal_cache = {42.f, 43.f, 44.f, 45.f};
VertexLoaderManager::tangent_cache = {46.f, 47.f, 48.f, 49.f};
RunVertices(2);
// First vertex, position
ExpectOut(4.0f);
ExpectOut(8.0f);
if (addr != VertexComponentFormat::NotPresent)
{
// Normal
ExpectOut(1 / 32.f);
ExpectOut(2 / 32.f);
ExpectOut(3 / 32.f);
if (elements == NormalComponentCount::NTB)
{
// Tangent
ExpectOut(4 / 32.f);
ExpectOut(5 / 32.f);
ExpectOut(6 / 32.f);
// Binormal
ExpectOut(7 / 32.f);
ExpectOut(8 / 32.f);
ExpectOut(9 / 32.f);
}
}
// Second vertex, position
ExpectOut(6.0f);
ExpectOut(12.0f);
if (addr != VertexComponentFormat::NotPresent)
{
// Normal
ExpectOut(10 / 32.f);
ExpectOut(11 / 32.f);
ExpectOut(12 / 32.f);
if (elements == NormalComponentCount::NTB)
{
// Tangent
ExpectOut(13 / 32.f);
ExpectOut(14 / 32.f);
ExpectOut(15 / 32.f);
// Binormal
ExpectOut(16 / 32.f);
ExpectOut(17 / 32.f);
ExpectOut(18 / 32.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[0], 13 / 32.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[1], 14 / 32.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[2], 15 / 32.f);
// Last index is padding/junk
EXPECT_EQ(VertexLoaderManager::binormal_cache[0], 16 / 32.f);
EXPECT_EQ(VertexLoaderManager::binormal_cache[1], 17 / 32.f);
EXPECT_EQ(VertexLoaderManager::binormal_cache[2], 18 / 32.f);
}
}
if (addr == VertexComponentFormat::NotPresent || elements == NormalComponentCount::N)
{
// Expect these to not be written
EXPECT_EQ(VertexLoaderManager::binormal_cache[0], 42.f);
EXPECT_EQ(VertexLoaderManager::binormal_cache[1], 43.f);
EXPECT_EQ(VertexLoaderManager::binormal_cache[2], 44.f);
EXPECT_EQ(VertexLoaderManager::binormal_cache[3], 45.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[0], 46.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[1], 47.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[2], 48.f);
EXPECT_EQ(VertexLoaderManager::tangent_cache[3], 49.f);
}
}
// For gtest, which doesn't know about our fmt::formatters by default
static void PrintTo(const VertexComponentFormat& t, std::ostream* os)
{
*os << fmt::to_string(t);
}
static void PrintTo(const ComponentFormat& t, std::ostream* os)
{
*os << fmt::to_string(t);
}
static void PrintTo(const CoordComponentCount& t, std::ostream* os)
{
*os << fmt::to_string(t);
}
static void PrintTo(const NormalComponentCount& t, std::ostream* os)
{
*os << fmt::to_string(t);
}