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XCEngine/tests/RHI/OpenGL/unit/test_backend_specific.cpp

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#include "fixtures/OpenGLTestFixture.h"
#include "XCEngine/RHI/OpenGL/OpenGLDescriptorSet.h"
#include "XCEngine/RHI/OpenGL/OpenGLPipelineState.h"
#include "XCEngine/RHI/OpenGL/OpenGLPipelineLayout.h"
#include "XCEngine/RHI/OpenGL/OpenGLResourceView.h"
#include "XCEngine/RHI/OpenGL/OpenGLSampler.h"
#include "XCEngine/RHI/RHIBuffer.h"
#include "XCEngine/RHI/RHICommandList.h"
#include "XCEngine/RHI/RHICommandQueue.h"
#include "XCEngine/RHI/RHIDescriptorPool.h"
#include "XCEngine/RHI/RHIEnums.h"
#include "XCEngine/RHI/RHIPipelineLayout.h"
#include "XCEngine/RHI/RHIPipelineState.h"
#include "XCEngine/RHI/RHIResourceView.h"
#include "XCEngine/RHI/RHIShader.h"
#include "XCEngine/RHI/RHISampler.h"
#include "XCEngine/RHI/RHISwapChain.h"
#include "XCEngine/RHI/ShaderCompiler/SpirvShaderCompiler.h"
#include "XCEngine/RHI/RHITexture.h"
#include <cstdint>
#include <cstring>
#include <algorithm>
#include <filesystem>
#include <iostream>
#include <mutex>
#include <string>
#include <thread>
#include <vector>
using namespace XCEngine::RHI;
namespace {
bool FindToolFromVulkanSdkOrPath(const wchar_t* fileName) {
wchar_t sdkBuffer[32767] = {};
const DWORD sdkBufferCount = static_cast<DWORD>(sizeof(sdkBuffer) / sizeof(sdkBuffer[0]));
const DWORD sdkLength = GetEnvironmentVariableW(L"VULKAN_SDK", sdkBuffer, sdkBufferCount);
if (sdkLength > 0 && sdkLength < sdkBufferCount) {
const std::filesystem::path candidate = std::filesystem::path(sdkBuffer) / L"Bin" / fileName;
if (std::filesystem::exists(candidate)) {
return true;
}
}
wchar_t pathBuffer[MAX_PATH] = {};
const DWORD pathLength = SearchPathW(nullptr, fileName, nullptr, MAX_PATH, pathBuffer, nullptr);
return pathLength > 0 && pathLength < MAX_PATH;
}
bool SupportsOpenGLHlslToolchainForTests() {
return FindToolFromVulkanSdkOrPath(L"glslangValidator.exe") &&
FindToolFromVulkanSdkOrPath(L"spirv-cross.exe");
}
} // namespace
TEST_F(OpenGLTestFixture, Device_Initialize_UnifiedPath_CanCreateSwapChain) {
auto* device = new OpenGLDevice();
ASSERT_NE(device, nullptr);
RHIDeviceDesc deviceDesc = {};
ASSERT_TRUE(device->Initialize(deviceDesc));
CommandQueueDesc queueDesc = {};
queueDesc.queueType = static_cast<uint32_t>(CommandQueueType::Direct);
RHICommandQueue* queue = device->CreateCommandQueue(queueDesc);
ASSERT_NE(queue, nullptr);
SwapChainDesc swapDesc = {};
swapDesc.windowHandle = GetWindow();
swapDesc.width = 320;
swapDesc.height = 180;
RHISwapChain* swapChain = device->CreateSwapChain(swapDesc, queue);
ASSERT_NE(swapChain, nullptr);
swapChain->Present(0, 0);
swapChain->Shutdown();
delete swapChain;
queue->Shutdown();
delete queue;
device->Shutdown();
delete device;
}
TEST_F(OpenGLTestFixture, Device_CreateShader_HlslVertex_UsesTranspiledHlslPath) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
if (!SupportsOpenGLHlslToolchainForTests()) {
GTEST_SKIP() << "glslangValidator.exe or spirv-cross.exe was not found.";
}
static const char* vertexSource = R"(
struct VSInput {
float4 position : POSITION;
};
struct VSOutput {
float4 position : SV_POSITION;
};
VSOutput MainVS(VSInput input) {
VSOutput output;
output.position = input.position;
return output;
}
)";
ShaderCompileDesc shaderDesc = {};
shaderDesc.source.assign(vertexSource, vertexSource + std::strlen(vertexSource));
shaderDesc.sourceLanguage = ShaderLanguage::HLSL;
shaderDesc.entryPoint = L"MainVS";
shaderDesc.profile = L"vs_5_0";
RHIShader* shader = GetDevice()->CreateShader(shaderDesc);
ASSERT_NE(shader, nullptr);
EXPECT_TRUE(shader->IsValid());
EXPECT_EQ(shader->GetType(), ShaderType::Vertex);
shader->Shutdown();
delete shader;
}
TEST(OpenGLShaderCompiler_Test, ParallelSpirvToolInvocationsDoNotCollideOnTemporaryFiles) {
if (!SupportsOpenGLHlslToolchainForTests()) {
GTEST_SKIP() << "glslangValidator.exe or spirv-cross.exe was not found.";
}
static const char* vertexSource = R"(
struct VSInput {
float4 position : POSITION;
};
struct VSOutput {
float4 position : SV_POSITION;
};
VSOutput MainVS(VSInput input) {
VSOutput output;
output.position = input.position;
return output;
}
)";
ShaderCompileDesc shaderDesc = {};
shaderDesc.source.assign(vertexSource, vertexSource + std::strlen(vertexSource));
shaderDesc.sourceLanguage = ShaderLanguage::HLSL;
shaderDesc.entryPoint = L"MainVS";
shaderDesc.profile = L"vs_5_0";
constexpr int kWorkerCount = 4;
constexpr int kIterationsPerWorker = 4;
std::mutex failureMutex;
std::vector<std::string> failures;
std::vector<std::thread> workers;
workers.reserve(kWorkerCount);
for (int workerIndex = 0; workerIndex < kWorkerCount; ++workerIndex) {
workers.emplace_back([&, workerIndex]() {
for (int iteration = 0; iteration < kIterationsPerWorker; ++iteration) {
CompiledSpirvShader compiledShader = {};
std::string errorMessage;
if (!CompileSpirvShader(
shaderDesc,
SpirvTargetEnvironment::Vulkan,
compiledShader,
&errorMessage)) {
std::lock_guard<std::mutex> lock(failureMutex);
failures.push_back(
"CompileSpirvShader failed for worker " +
std::to_string(workerIndex) +
", iteration " +
std::to_string(iteration) +
": " +
errorMessage);
return;
}
std::string glslSource;
errorMessage.clear();
if (!TranspileSpirvToOpenGLGLSL(compiledShader, glslSource, &errorMessage) ||
glslSource.empty()) {
std::lock_guard<std::mutex> lock(failureMutex);
failures.push_back(
"TranspileSpirvToOpenGLGLSL failed for worker " +
std::to_string(workerIndex) +
", iteration " +
std::to_string(iteration) +
": " +
errorMessage);
return;
}
}
});
}
for (std::thread& worker : workers) {
worker.join();
}
ASSERT_TRUE(failures.empty()) << failures.front();
}
TEST_F(OpenGLTestFixture, Device_CreatePipelineState_HlslGraphicsShaders_UsesTranspiledHlslPath) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
if (!SupportsOpenGLHlslToolchainForTests()) {
GTEST_SKIP() << "glslangValidator.exe or spirv-cross.exe was not found.";
}
static const char* hlslSource = R"(
struct VSInput {
float4 position : POSITION;
};
struct PSInput {
float4 position : SV_POSITION;
};
PSInput MainVS(VSInput input) {
PSInput output;
output.position = input.position;
return output;
}
float4 MainPS(PSInput input) : SV_TARGET {
return float4(1.0f, 0.25f, 0.0f, 1.0f);
}
)";
GraphicsPipelineDesc pipelineDesc = {};
pipelineDesc.topologyType = static_cast<uint32_t>(PrimitiveTopologyType::Triangle);
pipelineDesc.renderTargetFormats[0] = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
pipelineDesc.depthStencilFormat = static_cast<uint32_t>(Format::Unknown);
InputElementDesc position = {};
position.semanticName = "POSITION";
position.semanticIndex = 0;
position.format = static_cast<uint32_t>(Format::R32G32B32A32_Float);
position.inputSlot = 0;
position.alignedByteOffset = 0;
pipelineDesc.inputLayout.elements.push_back(position);
pipelineDesc.vertexShader.source.assign(hlslSource, hlslSource + std::strlen(hlslSource));
pipelineDesc.vertexShader.sourceLanguage = ShaderLanguage::HLSL;
pipelineDesc.vertexShader.entryPoint = L"MainVS";
pipelineDesc.vertexShader.profile = L"vs_5_0";
pipelineDesc.fragmentShader.source.assign(hlslSource, hlslSource + std::strlen(hlslSource));
pipelineDesc.fragmentShader.sourceLanguage = ShaderLanguage::HLSL;
pipelineDesc.fragmentShader.entryPoint = L"MainPS";
pipelineDesc.fragmentShader.profile = L"ps_5_0";
RHIPipelineState* pipelineState = GetDevice()->CreatePipelineState(pipelineDesc);
ASSERT_NE(pipelineState, nullptr);
EXPECT_NE(pipelineState->GetNativeHandle(), nullptr);
pipelineState->Shutdown();
delete pipelineState;
}
TEST_F(OpenGLTestFixture, Device_CreatePipelineState_HlslGraphicsShaders_AssignsCombinedSamplerUniformUnits) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
if (!SupportsOpenGLHlslToolchainForTests()) {
GTEST_SKIP() << "glslangValidator.exe or spirv-cross.exe was not found.";
}
static const char* hlslSource = R"(
Texture2D BaseColorTexture : register(t0);
SamplerState LinearClampSampler : register(s0);
Texture2D ShadowMapTexture : register(t1);
SamplerState ShadowMapSampler : register(s1);
struct VSInput {
float4 position : POSITION;
float2 texcoord : TEXCOORD0;
};
struct PSInput {
float4 position : SV_POSITION;
float2 texcoord : TEXCOORD0;
};
PSInput MainVS(VSInput input) {
PSInput output;
output.position = input.position;
output.texcoord = input.texcoord;
return output;
}
float4 MainPS(PSInput input) : SV_TARGET {
float4 baseColor = BaseColorTexture.Sample(LinearClampSampler, input.texcoord);
float shadow = ShadowMapTexture.Sample(ShadowMapSampler, input.texcoord).r;
return float4(baseColor.rgb * shadow, baseColor.a);
}
)";
GraphicsPipelineDesc pipelineDesc = {};
pipelineDesc.topologyType = static_cast<uint32_t>(PrimitiveTopologyType::Triangle);
pipelineDesc.renderTargetFormats[0] = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
InputElementDesc position = {};
position.semanticName = "POSITION";
position.semanticIndex = 0;
position.format = static_cast<uint32_t>(Format::R32G32B32A32_Float);
position.inputSlot = 0;
position.alignedByteOffset = 0;
pipelineDesc.inputLayout.elements.push_back(position);
InputElementDesc texcoord = {};
texcoord.semanticName = "TEXCOORD";
texcoord.semanticIndex = 0;
texcoord.format = static_cast<uint32_t>(Format::R32G32_Float);
texcoord.inputSlot = 0;
texcoord.alignedByteOffset = sizeof(float) * 4;
pipelineDesc.inputLayout.elements.push_back(texcoord);
pipelineDesc.vertexShader.source.assign(hlslSource, hlslSource + std::strlen(hlslSource));
pipelineDesc.vertexShader.sourceLanguage = ShaderLanguage::HLSL;
pipelineDesc.vertexShader.entryPoint = L"MainVS";
pipelineDesc.vertexShader.profile = L"vs_5_0";
pipelineDesc.fragmentShader.source.assign(hlslSource, hlslSource + std::strlen(hlslSource));
pipelineDesc.fragmentShader.sourceLanguage = ShaderLanguage::HLSL;
pipelineDesc.fragmentShader.entryPoint = L"MainPS";
pipelineDesc.fragmentShader.profile = L"ps_5_0";
RHIPipelineState* pipelineState = GetDevice()->CreatePipelineState(pipelineDesc);
ASSERT_NE(pipelineState, nullptr);
const GLuint program = static_cast<OpenGLPipelineState*>(pipelineState)->GetProgram();
ASSERT_NE(program, 0u);
const GLint baseColorLocation =
glGetUniformLocation(program, "SPIRV_Cross_CombinedBaseColorTextureLinearClampSampler");
const GLint shadowLocation =
glGetUniformLocation(program, "SPIRV_Cross_CombinedShadowMapTextureShadowMapSampler");
ASSERT_GE(baseColorLocation, 0);
ASSERT_GE(shadowLocation, 0);
GLint baseColorUnit = -1;
GLint shadowUnit = -1;
glGetUniformiv(program, baseColorLocation, &baseColorUnit);
glGetUniformiv(program, shadowLocation, &shadowUnit);
GLint activeUniformCount = 0;
glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &activeUniformCount);
for (GLint uniformIndex = 0; uniformIndex < activeUniformCount; ++uniformIndex) {
GLsizei nameLength = 0;
GLint arraySize = 0;
GLenum type = 0;
char nameBuffer[256] = {};
glGetActiveUniform(
program,
static_cast<GLuint>(uniformIndex),
static_cast<GLsizei>(sizeof(nameBuffer)),
&nameLength,
&arraySize,
&type,
nameBuffer);
if (nameLength <= 0) {
continue;
}
GLint location = glGetUniformLocation(program, nameBuffer);
GLint value = -1;
if (location >= 0) {
glGetUniformiv(program, location, &value);
}
std::cout << "uniform[" << uniformIndex << "] name=" << nameBuffer
<< " location=" << location
<< " value=" << value
<< " type=" << type
<< " arraySize=" << arraySize
<< std::endl;
}
EXPECT_EQ(baseColorUnit, 0);
EXPECT_EQ(shadowUnit, 1);
pipelineState->Shutdown();
delete pipelineState;
}
TEST_F(OpenGLTestFixture, CommandList_SetRenderTargets_BindsColorAndDepthAttachments) {
TextureDesc colorDesc = {};
colorDesc.width = 128;
colorDesc.height = 128;
colorDesc.format = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
colorDesc.textureType = static_cast<uint32_t>(TextureType::Texture2D);
TextureDesc depthDesc = {};
depthDesc.width = 128;
depthDesc.height = 128;
depthDesc.format = static_cast<uint32_t>(Format::D24_UNorm_S8_UInt);
depthDesc.textureType = static_cast<uint32_t>(TextureType::Texture2D);
RHITexture* colorTexture = GetDevice()->CreateTexture(colorDesc);
RHITexture* depthTexture = GetDevice()->CreateTexture(depthDesc);
ASSERT_NE(colorTexture, nullptr);
ASSERT_NE(depthTexture, nullptr);
ResourceViewDesc colorViewDesc = {};
colorViewDesc.format = colorDesc.format;
RHIResourceView* rtv = GetDevice()->CreateRenderTargetView(colorTexture, colorViewDesc);
ResourceViewDesc depthViewDesc = {};
depthViewDesc.format = depthDesc.format;
RHIResourceView* dsv = GetDevice()->CreateDepthStencilView(depthTexture, depthViewDesc);
ASSERT_NE(rtv, nullptr);
ASSERT_NE(dsv, nullptr);
CommandListDesc cmdDesc = {};
cmdDesc.commandListType = static_cast<uint32_t>(CommandQueueType::Direct);
RHICommandList* cmdList = GetDevice()->CreateCommandList(cmdDesc);
ASSERT_NE(cmdList, nullptr);
cmdList->Reset();
cmdList->SetRenderTargets(1, &rtv, dsv);
GLint framebuffer = 0;
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &framebuffer);
EXPECT_NE(framebuffer, 0);
EXPECT_EQ(glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER), GL_FRAMEBUFFER_COMPLETE);
GLint colorAttachment = 0;
glGetFramebufferAttachmentParameteriv(
GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
&colorAttachment);
EXPECT_EQ(static_cast<GLuint>(colorAttachment), static_cast<OpenGLResourceView*>(rtv)->GetTexture());
GLint depthAttachment = 0;
glGetFramebufferAttachmentParameteriv(
GL_DRAW_FRAMEBUFFER,
GL_DEPTH_ATTACHMENT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
&depthAttachment);
EXPECT_EQ(static_cast<GLuint>(depthAttachment), static_cast<OpenGLResourceView*>(dsv)->GetTexture());
cmdList->Close();
cmdList->Shutdown();
delete cmdList;
delete dsv;
delete rtv;
depthTexture->Shutdown();
delete depthTexture;
colorTexture->Shutdown();
delete colorTexture;
}
TEST_F(OpenGLTestFixture, CommandList_SetRenderTargets_BindsMultipleColorAttachments) {
TextureDesc texDesc = {};
texDesc.width = 128;
texDesc.height = 128;
texDesc.format = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
texDesc.textureType = static_cast<uint32_t>(TextureType::Texture2D);
RHITexture* texture0 = GetDevice()->CreateTexture(texDesc);
RHITexture* texture1 = GetDevice()->CreateTexture(texDesc);
ASSERT_NE(texture0, nullptr);
ASSERT_NE(texture1, nullptr);
ResourceViewDesc viewDesc = {};
viewDesc.format = texDesc.format;
RHIResourceView* rtv0 = GetDevice()->CreateRenderTargetView(texture0, viewDesc);
RHIResourceView* rtv1 = GetDevice()->CreateRenderTargetView(texture1, viewDesc);
ASSERT_NE(rtv0, nullptr);
ASSERT_NE(rtv1, nullptr);
RHIResourceView* rtvs[] = { rtv0, rtv1 };
CommandListDesc cmdDesc = {};
cmdDesc.commandListType = static_cast<uint32_t>(CommandQueueType::Direct);
RHICommandList* cmdList = GetDevice()->CreateCommandList(cmdDesc);
ASSERT_NE(cmdList, nullptr);
cmdList->Reset();
cmdList->SetRenderTargets(2, rtvs, nullptr);
GLint framebuffer = 0;
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &framebuffer);
EXPECT_NE(framebuffer, 0);
EXPECT_EQ(glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER), GL_FRAMEBUFFER_COMPLETE);
GLint colorAttachment0 = 0;
glGetFramebufferAttachmentParameteriv(
GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
&colorAttachment0);
EXPECT_EQ(static_cast<GLuint>(colorAttachment0), static_cast<OpenGLResourceView*>(rtv0)->GetTexture());
GLint colorAttachment1 = 0;
glGetFramebufferAttachmentParameteriv(
GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT1,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
&colorAttachment1);
EXPECT_EQ(static_cast<GLuint>(colorAttachment1), static_cast<OpenGLResourceView*>(rtv1)->GetTexture());
cmdList->Close();
cmdList->Shutdown();
delete cmdList;
delete rtv1;
delete rtv0;
texture1->Shutdown();
delete texture1;
texture0->Shutdown();
delete texture0;
}
TEST_F(OpenGLTestFixture, CommandList_CopyResource_UsesActualTextureDimensions) {
constexpr uint32_t kWidth = 64;
constexpr uint32_t kHeight = 32;
std::vector<uint8_t> srcPixels(kWidth * kHeight * 4);
for (uint32_t y = 0; y < kHeight; ++y) {
for (uint32_t x = 0; x < kWidth; ++x) {
const size_t index = static_cast<size_t>((y * kWidth + x) * 4);
srcPixels[index + 0] = static_cast<uint8_t>(x * 3);
srcPixels[index + 1] = static_cast<uint8_t>(y * 5);
srcPixels[index + 2] = static_cast<uint8_t>((x + y) * 7);
srcPixels[index + 3] = 255;
}
}
TextureDesc texDesc = {};
texDesc.width = kWidth;
texDesc.height = kHeight;
texDesc.depth = 1;
texDesc.mipLevels = 1;
texDesc.arraySize = 1;
texDesc.format = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
texDesc.textureType = static_cast<uint32_t>(TextureType::Texture2D);
texDesc.sampleCount = 1;
texDesc.sampleQuality = 0;
RHITexture* srcTexture = GetDevice()->CreateTexture(texDesc, srcPixels.data(), srcPixels.size(), kWidth * 4);
ASSERT_NE(srcTexture, nullptr);
RHITexture* dstTexture = GetDevice()->CreateTexture(texDesc);
ASSERT_NE(dstTexture, nullptr);
RHIResourceView* srcView = GetDevice()->CreateShaderResourceView(srcTexture, {});
RHIResourceView* dstView = GetDevice()->CreateShaderResourceView(dstTexture, {});
ASSERT_NE(srcView, nullptr);
ASSERT_NE(dstView, nullptr);
CommandListDesc cmdDesc = {};
cmdDesc.commandListType = static_cast<uint32_t>(CommandQueueType::Direct);
RHICommandList* cmdList = GetDevice()->CreateCommandList(cmdDesc);
ASSERT_NE(cmdList, nullptr);
cmdList->Reset();
cmdList->CopyResource(dstView, srcView);
glFinish();
cmdList->Close();
std::vector<uint8_t> dstPixels(kWidth * kHeight * 4, 0);
const GLuint dstTextureId = static_cast<OpenGLResourceView*>(dstView)->GetTexture();
glBindTexture(GL_TEXTURE_2D, dstTextureId);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, dstPixels.data());
glBindTexture(GL_TEXTURE_2D, 0);
EXPECT_EQ(dstPixels, srcPixels);
cmdList->Shutdown();
delete cmdList;
delete srcView;
delete dstView;
srcTexture->Shutdown();
delete srcTexture;
dstTexture->Shutdown();
delete dstTexture;
}
TEST_F(OpenGLTestFixture, CommandList_SetVertexBuffers_InterleavedInputLayoutUsesPipelineLayout) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
GraphicsPipelineDesc pipelineDesc = {};
pipelineDesc.renderTargetFormats[0] = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
InputElementDesc position = {};
position.semanticName = "POSITION";
position.semanticIndex = 0;
position.format = static_cast<uint32_t>(Format::R32G32B32A32_Float);
position.inputSlot = 0;
position.alignedByteOffset = 0;
pipelineDesc.inputLayout.elements.push_back(position);
InputElementDesc color = {};
color.semanticName = "COLOR";
color.semanticIndex = 0;
color.format = static_cast<uint32_t>(Format::R32G32B32A32_Float);
color.inputSlot = 0;
color.alignedByteOffset = sizeof(float) * 4;
pipelineDesc.inputLayout.elements.push_back(color);
static const char* vertexSource = R"(#version 430
layout(location = 0) in vec4 aPosition;
layout(location = 1) in vec4 aColor;
out vec4 vColor;
void main() {
gl_Position = aPosition;
vColor = aColor;
}
)";
static const char* fragmentSource = R"(#version 430
in vec4 vColor;
layout(location = 0) out vec4 fragColor;
void main() {
fragColor = vColor;
}
)";
pipelineDesc.vertexShader.source.assign(vertexSource, vertexSource + std::strlen(vertexSource));
pipelineDesc.vertexShader.sourceLanguage = ShaderLanguage::GLSL;
pipelineDesc.vertexShader.profile = L"vs_4_30";
pipelineDesc.fragmentShader.source.assign(fragmentSource, fragmentSource + std::strlen(fragmentSource));
pipelineDesc.fragmentShader.sourceLanguage = ShaderLanguage::GLSL;
pipelineDesc.fragmentShader.profile = L"fs_4_30";
RHIPipelineState* pipelineState = GetDevice()->CreatePipelineState(pipelineDesc);
ASSERT_NE(pipelineState, nullptr);
BufferDesc bufferDesc = {};
bufferDesc.size = sizeof(float) * 8 * 3;
bufferDesc.stride = sizeof(float) * 8;
bufferDesc.bufferType = static_cast<uint32_t>(BufferType::Vertex);
RHIBuffer* buffer = GetDevice()->CreateBuffer(bufferDesc);
ASSERT_NE(buffer, nullptr);
ResourceViewDesc viewDesc = {};
viewDesc.dimension = ResourceViewDimension::Buffer;
viewDesc.structureByteStride = bufferDesc.stride;
RHIResourceView* vbv = GetDevice()->CreateVertexBufferView(buffer, viewDesc);
ASSERT_NE(vbv, nullptr);
CommandListDesc cmdDesc = {};
cmdDesc.commandListType = static_cast<uint32_t>(CommandQueueType::Direct);
RHICommandList* cmdList = GetDevice()->CreateCommandList(cmdDesc);
ASSERT_NE(cmdList, nullptr);
RHIResourceView* views[] = { vbv };
uint64_t offsets[] = { 0 };
uint32_t strides[] = { bufferDesc.stride };
cmdList->Reset();
cmdList->SetPipelineState(pipelineState);
cmdList->SetVertexBuffers(0, 1, views, offsets, strides);
GLint enabled0 = 0;
GLint enabled1 = 0;
GLint size0 = 0;
GLint size1 = 0;
GLint stride0 = 0;
GLint stride1 = 0;
void* pointer0 = nullptr;
void* pointer1 = nullptr;
glGetVertexAttribiv(0, GL_VERTEX_ATTRIB_ARRAY_ENABLED, &enabled0);
glGetVertexAttribiv(1, GL_VERTEX_ATTRIB_ARRAY_ENABLED, &enabled1);
glGetVertexAttribiv(0, GL_VERTEX_ATTRIB_ARRAY_SIZE, &size0);
glGetVertexAttribiv(1, GL_VERTEX_ATTRIB_ARRAY_SIZE, &size1);
glGetVertexAttribiv(0, GL_VERTEX_ATTRIB_ARRAY_STRIDE, &stride0);
glGetVertexAttribiv(1, GL_VERTEX_ATTRIB_ARRAY_STRIDE, &stride1);
glGetVertexAttribPointerv(0, GL_VERTEX_ATTRIB_ARRAY_POINTER, &pointer0);
glGetVertexAttribPointerv(1, GL_VERTEX_ATTRIB_ARRAY_POINTER, &pointer1);
EXPECT_EQ(enabled0, GL_TRUE);
EXPECT_EQ(enabled1, GL_TRUE);
EXPECT_EQ(size0, 4);
EXPECT_EQ(size1, 4);
EXPECT_EQ(stride0, static_cast<GLint>(bufferDesc.stride));
EXPECT_EQ(stride1, static_cast<GLint>(bufferDesc.stride));
EXPECT_EQ(reinterpret_cast<std::uintptr_t>(pointer0), 0u);
EXPECT_EQ(reinterpret_cast<std::uintptr_t>(pointer1), sizeof(float) * 4u);
cmdList->Close();
cmdList->Shutdown();
delete cmdList;
vbv->Shutdown();
delete vbv;
buffer->Shutdown();
delete buffer;
pipelineState->Shutdown();
delete pipelineState;
}
TEST_F(OpenGLTestFixture, CommandList_SetComputeDescriptorSets_UsesSetAwareImageBindings) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
const uint8_t initialPixel[4] = { 0, 0, 0, 0 };
TextureDesc textureDesc = {};
textureDesc.width = 1;
textureDesc.height = 1;
textureDesc.depth = 1;
textureDesc.mipLevels = 1;
textureDesc.arraySize = 1;
textureDesc.format = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
textureDesc.textureType = static_cast<uint32_t>(TextureType::Texture2D);
textureDesc.sampleCount = 1;
RHITexture* texture = GetDevice()->CreateTexture(textureDesc, initialPixel, sizeof(initialPixel), 4);
ASSERT_NE(texture, nullptr);
ResourceViewDesc uavDesc = {};
uavDesc.format = textureDesc.format;
uavDesc.dimension = ResourceViewDimension::Texture2D;
RHIResourceView* uav = GetDevice()->CreateUnorderedAccessView(texture, uavDesc);
ASSERT_NE(uav, nullptr);
DescriptorPoolDesc poolDesc = {};
poolDesc.type = DescriptorHeapType::CBV_SRV_UAV;
poolDesc.descriptorCount = 1;
poolDesc.shaderVisible = true;
RHIDescriptorPool* pool = GetDevice()->CreateDescriptorPool(poolDesc);
ASSERT_NE(pool, nullptr);
DescriptorSetLayoutBinding reservedBinding = {};
reservedBinding.binding = 0;
reservedBinding.type = static_cast<uint32_t>(DescriptorType::UAV);
reservedBinding.count = 1;
DescriptorSetLayoutBinding actualBinding = {};
actualBinding.binding = 0;
actualBinding.type = static_cast<uint32_t>(DescriptorType::UAV);
actualBinding.count = 1;
DescriptorSetLayoutDesc reservedLayout = {};
reservedLayout.bindings = &reservedBinding;
reservedLayout.bindingCount = 1;
DescriptorSetLayoutDesc actualLayout = {};
actualLayout.bindings = &actualBinding;
actualLayout.bindingCount = 1;
DescriptorSetLayoutDesc setLayouts[2] = {};
setLayouts[0] = reservedLayout;
setLayouts[1] = actualLayout;
RHIPipelineLayoutDesc pipelineLayoutDesc = {};
pipelineLayoutDesc.setLayouts = setLayouts;
pipelineLayoutDesc.setLayoutCount = 2;
RHIPipelineLayout* pipelineLayout = GetDevice()->CreatePipelineLayout(pipelineLayoutDesc);
ASSERT_NE(pipelineLayout, nullptr);
RHIDescriptorSet* descriptorSet = pool->AllocateSet(actualLayout);
ASSERT_NE(descriptorSet, nullptr);
descriptorSet->Update(0, uav);
ShaderCompileDesc shaderDesc = {};
shaderDesc.sourceLanguage = ShaderLanguage::GLSL;
static const char* computeSource = R"(
#version 430
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
layout(binding = 1, rgba8) uniform writeonly image2D uImage;
void main() {
imageStore(uImage, ivec2(0, 0), vec4(1.0, 0.0, 0.0, 1.0));
}
)";
shaderDesc.source.assign(computeSource, computeSource + std::strlen(computeSource));
shaderDesc.profile = L"cs_4_30";
ComputePipelineDesc pipelineDesc = {};
pipelineDesc.pipelineLayout = pipelineLayout;
pipelineDesc.computeShader = shaderDesc;
RHIPipelineState* pipelineState = GetDevice()->CreateComputePipelineState(pipelineDesc);
ASSERT_NE(pipelineState, nullptr);
CommandListDesc cmdDesc = {};
cmdDesc.commandListType = static_cast<uint32_t>(CommandQueueType::Direct);
RHICommandList* cmdList = GetDevice()->CreateCommandList(cmdDesc);
ASSERT_NE(cmdList, nullptr);
glBindImageTexture(0, 0, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA8);
glBindImageTexture(1, 0, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA8);
cmdList->Reset();
cmdList->SetPipelineState(pipelineState);
RHIDescriptorSet* descriptorSets[] = { descriptorSet };
cmdList->SetComputeDescriptorSets(1, 1, descriptorSets, pipelineLayout);
GLint boundImageAtZero = -1;
GLint boundImageAtOne = -1;
glGetIntegeri_v(GL_IMAGE_BINDING_NAME, 0, &boundImageAtZero);
glGetIntegeri_v(GL_IMAGE_BINDING_NAME, 1, &boundImageAtOne);
EXPECT_EQ(boundImageAtZero, 0);
EXPECT_EQ(
static_cast<unsigned int>(boundImageAtOne),
static_cast<unsigned int>(reinterpret_cast<std::uintptr_t>(texture->GetNativeHandle())));
cmdList->Dispatch(1, 1, 1);
glMemoryBarrier(GL_ALL_BARRIER_BITS);
uint8_t pixel[4] = {};
glBindTexture(GL_TEXTURE_2D, static_cast<GLuint>(reinterpret_cast<std::uintptr_t>(texture->GetNativeHandle())));
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
glBindTexture(GL_TEXTURE_2D, 0);
EXPECT_EQ(pixel[0], 255u);
EXPECT_EQ(pixel[1], 0u);
EXPECT_EQ(pixel[2], 0u);
EXPECT_EQ(pixel[3], 255u);
cmdList->Close();
cmdList->Shutdown();
delete cmdList;
pipelineState->Shutdown();
delete pipelineState;
descriptorSet->Shutdown();
delete descriptorSet;
pipelineLayout->Shutdown();
delete pipelineLayout;
pool->Shutdown();
delete pool;
uav->Shutdown();
delete uav;
texture->Shutdown();
delete texture;
}
TEST_F(OpenGLTestFixture, DescriptorSet_Update_UsesBindingNumber) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
DescriptorPoolDesc poolDesc = {};
poolDesc.type = DescriptorHeapType::CBV_SRV_UAV;
poolDesc.descriptorCount = 8;
poolDesc.shaderVisible = true;
RHIDescriptorPool* pool = GetDevice()->CreateDescriptorPool(poolDesc);
ASSERT_NE(pool, nullptr);
TextureDesc textureDesc = {};
textureDesc.width = 1;
textureDesc.height = 1;
textureDesc.depth = 1;
textureDesc.mipLevels = 1;
textureDesc.arraySize = 1;
textureDesc.format = static_cast<uint32_t>(Format::R8G8B8A8_UNorm);
textureDesc.textureType = static_cast<uint32_t>(TextureType::Texture2D);
textureDesc.sampleCount = 1;
const uint8_t pixel[4] = { 255, 255, 255, 255 };
RHITexture* texture = GetDevice()->CreateTexture(textureDesc, pixel, sizeof(pixel), 4);
ASSERT_NE(texture, nullptr);
ResourceViewDesc srvDesc = {};
srvDesc.format = textureDesc.format;
srvDesc.dimension = ResourceViewDimension::Texture2D;
RHIResourceView* srv = GetDevice()->CreateShaderResourceView(texture, srvDesc);
ASSERT_NE(srv, nullptr);
DescriptorSetLayoutBinding bindings[2] = {};
bindings[0].binding = 3;
bindings[0].type = static_cast<uint32_t>(DescriptorType::SRV);
bindings[0].count = 1;
bindings[1].binding = 7;
bindings[1].type = static_cast<uint32_t>(DescriptorType::SRV);
bindings[1].count = 1;
DescriptorSetLayoutDesc layoutDesc = {};
layoutDesc.bindings = bindings;
layoutDesc.bindingCount = 2;
RHIDescriptorSet* set = pool->AllocateSet(layoutDesc);
ASSERT_NE(set, nullptr);
auto* openGLSet = static_cast<OpenGLDescriptorSet*>(set);
const uint32_t untouchedUnit = openGLSet->GetBindingPoint(3);
const uint32_t updatedUnit = openGLSet->GetBindingPoint(7);
ASSERT_NE(untouchedUnit, updatedUnit);
set->Update(7, srv);
set->Bind();
GLint updatedTexture = 0;
glActiveTexture(GL_TEXTURE0 + updatedUnit);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &updatedTexture);
EXPECT_EQ(static_cast<unsigned int>(updatedTexture), static_cast<unsigned int>(reinterpret_cast<std::uintptr_t>(srv->GetNativeHandle())));
GLint untouchedTexture = 0;
glActiveTexture(GL_TEXTURE0 + untouchedUnit);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &untouchedTexture);
EXPECT_EQ(untouchedTexture, 0);
set->Unbind();
GLint unboundTexture = 0;
glActiveTexture(GL_TEXTURE0 + updatedUnit);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &unboundTexture);
EXPECT_EQ(unboundTexture, 0);
set->Shutdown();
delete set;
srv->Shutdown();
delete srv;
texture->Shutdown();
delete texture;
pool->Shutdown();
delete pool;
}
TEST_F(OpenGLTestFixture, DescriptorSet_BindConstantBuffer_UsesBindingNumber) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
DescriptorPoolDesc poolDesc = {};
poolDesc.type = DescriptorHeapType::CBV_SRV_UAV;
poolDesc.descriptorCount = 1;
poolDesc.shaderVisible = false;
RHIDescriptorPool* pool = GetDevice()->CreateDescriptorPool(poolDesc);
ASSERT_NE(pool, nullptr);
DescriptorSetLayoutBinding binding = {};
binding.binding = 3;
binding.type = static_cast<uint32_t>(DescriptorType::CBV);
binding.count = 1;
DescriptorSetLayoutDesc layoutDesc = {};
layoutDesc.bindings = &binding;
layoutDesc.bindingCount = 1;
RHIDescriptorSet* set = pool->AllocateSet(layoutDesc);
ASSERT_NE(set, nullptr);
const float matrixData[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f,
};
set->WriteConstant(3, matrixData, sizeof(matrixData));
set->Bind();
GLint boundBuffer = 0;
glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, 3, &boundBuffer);
EXPECT_NE(boundBuffer, 0);
set->Unbind();
GLint unboundBuffer = -1;
glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, 3, &unboundBuffer);
EXPECT_EQ(unboundBuffer, 0);
set->Shutdown();
delete set;
pool->Shutdown();
delete pool;
}
TEST_F(OpenGLTestFixture, PipelineLayout_SeparatesOverlappingBindingsAcrossSetSlots) {
DescriptorSetLayoutBinding set0Bindings[4] = {};
set0Bindings[0].binding = 0;
set0Bindings[0].type = static_cast<uint32_t>(DescriptorType::CBV);
set0Bindings[0].count = 1;
set0Bindings[1].binding = 0;
set0Bindings[1].type = static_cast<uint32_t>(DescriptorType::SRV);
set0Bindings[1].count = 1;
set0Bindings[2].binding = 0;
set0Bindings[2].type = static_cast<uint32_t>(DescriptorType::UAV);
set0Bindings[2].count = 1;
set0Bindings[3].binding = 0;
set0Bindings[3].type = static_cast<uint32_t>(DescriptorType::Sampler);
set0Bindings[3].count = 1;
DescriptorSetLayoutBinding set1Bindings[4] = {};
set1Bindings[0].binding = 0;
set1Bindings[0].type = static_cast<uint32_t>(DescriptorType::CBV);
set1Bindings[0].count = 1;
set1Bindings[1].binding = 0;
set1Bindings[1].type = static_cast<uint32_t>(DescriptorType::SRV);
set1Bindings[1].count = 1;
set1Bindings[2].binding = 0;
set1Bindings[2].type = static_cast<uint32_t>(DescriptorType::UAV);
set1Bindings[2].count = 1;
set1Bindings[3].binding = 0;
set1Bindings[3].type = static_cast<uint32_t>(DescriptorType::Sampler);
set1Bindings[3].count = 1;
DescriptorSetLayoutDesc setLayouts[2] = {};
setLayouts[0].bindings = set0Bindings;
setLayouts[0].bindingCount = 4;
setLayouts[1].bindings = set1Bindings;
setLayouts[1].bindingCount = 4;
RHIPipelineLayoutDesc desc = {};
desc.setLayouts = setLayouts;
desc.setLayoutCount = 2;
RHIPipelineLayout* layout = GetDevice()->CreatePipelineLayout(desc);
ASSERT_NE(layout, nullptr);
auto* openGLLayout = static_cast<OpenGLPipelineLayout*>(layout);
EXPECT_TRUE(openGLLayout->UsesSetLayouts());
EXPECT_EQ(openGLLayout->GetSetLayoutCount(), 2u);
EXPECT_TRUE(openGLLayout->HasConstantBufferBinding(0, 0));
EXPECT_TRUE(openGLLayout->HasConstantBufferBinding(1, 0));
EXPECT_EQ(openGLLayout->GetConstantBufferBindingPoint(0, 0), 0u);
EXPECT_EQ(openGLLayout->GetConstantBufferBindingPoint(1, 0), 1u);
EXPECT_EQ(openGLLayout->GetShaderResourceBindingPoint(0, 0), 0u);
EXPECT_EQ(openGLLayout->GetShaderResourceBindingPoint(1, 0), 1u);
EXPECT_EQ(openGLLayout->GetUnorderedAccessBindingPoint(0, 0), 0u);
EXPECT_EQ(openGLLayout->GetUnorderedAccessBindingPoint(1, 0), 1u);
EXPECT_EQ(openGLLayout->GetSamplerBindingPoint(0, 0), 0u);
EXPECT_EQ(openGLLayout->GetSamplerBindingPoint(1, 0), 1u);
layout->Shutdown();
delete layout;
}
TEST_F(OpenGLTestFixture, Sampler_HonorsSamplerDesc) {
ASSERT_TRUE(GetDevice()->MakeContextCurrent());
SamplerDesc desc = {};
desc.filter = static_cast<uint32_t>(FilterMode::ComparisonAnisotropic);
desc.addressU = static_cast<uint32_t>(TextureAddressMode::Clamp);
desc.addressV = static_cast<uint32_t>(TextureAddressMode::Mirror);
desc.addressW = static_cast<uint32_t>(TextureAddressMode::Border);
desc.maxAnisotropy = 8;
desc.comparisonFunc = static_cast<uint32_t>(ComparisonFunc::GreaterEqual);
desc.minLod = 1.0f;
desc.maxLod = 4.0f;
RHISampler* sampler = GetDevice()->CreateSampler(desc);
ASSERT_NE(sampler, nullptr);
const GLuint samplerId = static_cast<OpenGLSampler*>(sampler)->GetID();
GLint value = 0;
glGetSamplerParameteriv(samplerId, GL_TEXTURE_WRAP_S, &value);
EXPECT_EQ(value, GL_CLAMP_TO_EDGE);
glGetSamplerParameteriv(samplerId, GL_TEXTURE_WRAP_T, &value);
EXPECT_EQ(value, GL_MIRRORED_REPEAT);
glGetSamplerParameteriv(samplerId, GL_TEXTURE_WRAP_R, &value);
EXPECT_EQ(value, GL_CLAMP_TO_BORDER);
glGetSamplerParameteriv(samplerId, GL_TEXTURE_MIN_FILTER, &value);
EXPECT_EQ(value, GL_LINEAR_MIPMAP_LINEAR);
glGetSamplerParameteriv(samplerId, GL_TEXTURE_MAG_FILTER, &value);
EXPECT_EQ(value, GL_LINEAR);
glGetSamplerParameteriv(samplerId, GL_TEXTURE_COMPARE_MODE, &value);
EXPECT_EQ(value, GL_COMPARE_REF_TO_TEXTURE);
glGetSamplerParameteriv(samplerId, GL_TEXTURE_COMPARE_FUNC, &value);
EXPECT_EQ(value, GL_GEQUAL);
GLfloat floatValue = 0.0f;
glGetSamplerParameterfv(samplerId, GL_TEXTURE_MAX_ANISOTROPY, &floatValue);
EXPECT_GE(floatValue, 8.0f);
glGetSamplerParameterfv(samplerId, GL_TEXTURE_MIN_LOD, &floatValue);
EXPECT_FLOAT_EQ(floatValue, 1.0f);
glGetSamplerParameterfv(samplerId, GL_TEXTURE_MAX_LOD, &floatValue);
EXPECT_FLOAT_EQ(floatValue, 4.0f);
sampler->Shutdown();
delete sampler;
}
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