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#include "core/slang-basic.h"
#include "core/slang-blob.h"
#include "gfx-test-util.h"
#include "slang-rhi.h"
#include "slang-rhi/shader-cursor.h"
#include "unit-test/slang-unit-test.h"
using namespace rhi;
// Test that a type can be used to serve multiple link-time type requirements.
namespace gfx_test
{
static Slang::Result loadProgram(
rhi::IDevice* device,
Slang::ComPtr<rhi::IShaderProgram>& outShaderProgram,
slang::ProgramLayout*& slangReflection,
bool linkSpecialization = false)
{
const char* moduleInterfaceSrc = R"(
interface IFoo { int getFoo(); }
interface IBar { int getBar(); }
struct SimpleImpl : IFoo, IBar
{
int getFoo() { return 10; }
int getBar() { return 20; }
}
)";
const char* module0Src = R"(
import ifoo;
extern struct Foo : IFoo;
extern struct Bar : IBar;
uniform Foo gFoo;
uniform Bar gBar;
[numthreads(1,1,1)]
void computeMain(uniform RWStructuredBuffer<int> buffer)
{
buffer[0] = gFoo.getFoo() + gBar.getBar();
}
)";
const char* module1Src = R"(
import ifoo;
export struct Foo : IFoo = SimpleImpl;
export struct Bar : IBar = SimpleImpl;
)";
Slang::ComPtr<slang::ISession> slangSession;
SLANG_RETURN_ON_FAIL(device->getSlangSession(slangSession.writeRef()));
Slang::ComPtr<slang::IBlob> diagnosticsBlob;
auto moduleInterfaceBlob =
Slang::UnownedRawBlob::create(moduleInterfaceSrc, strlen(moduleInterfaceSrc));
auto module0Blob = Slang::UnownedRawBlob::create(module0Src, strlen(module0Src));
auto module1Blob = Slang::UnownedRawBlob::create(module1Src, strlen(module1Src));
slang::IModule* moduleInterface =
slangSession->loadModuleFromSource("ifoo", "ifoo.slang", moduleInterfaceBlob);
slang::IModule* module0 = slangSession->loadModuleFromSource("module0", "path0", module0Blob);
slang::IModule* module1 = slangSession->loadModuleFromSource("module1", "path1", module1Blob);
ComPtr<slang::IEntryPoint> computeEntryPoint;
SLANG_RETURN_ON_FAIL(
module0->findEntryPointByName("computeMain", computeEntryPoint.writeRef()));
Slang::List<slang::IComponentType*> componentTypes;
componentTypes.add(moduleInterface);
componentTypes.add(module0);
if (linkSpecialization)
componentTypes.add(module1);
componentTypes.add(computeEntryPoint);
Slang::ComPtr<slang::IComponentType> composedProgram;
SlangResult result = slangSession->createCompositeComponentType(
componentTypes.getBuffer(),
componentTypes.getCount(),
composedProgram.writeRef(),
diagnosticsBlob.writeRef());
diagnoseIfNeeded(diagnosticsBlob);
SLANG_RETURN_ON_FAIL(result);
ComPtr<slang::IComponentType> linkedProgram;
result = composedProgram->link(linkedProgram.writeRef(), diagnosticsBlob.writeRef());
diagnoseIfNeeded(diagnosticsBlob);
SLANG_RETURN_ON_FAIL(result);
composedProgram = linkedProgram;
slangReflection = composedProgram->getLayout();
ShaderProgramDesc programDesc = {};
programDesc.slangGlobalScope = composedProgram.get();
auto shaderProgram = device->createShaderProgram(programDesc);
outShaderProgram = shaderProgram;
return SLANG_OK;
}
void linkTimeTypeMultiUseTestImpl(IDevice* device, UnitTestContext* context)
{
// Create pipeline without both modules linked, specifying both Foo and Bar to be SimpleImpl.
ComPtr<IShaderProgram> shaderProgram;
slang::ProgramLayout* slangReflection;
GFX_CHECK_CALL_ABORT(loadProgram(device, shaderProgram, slangReflection, true));
ComputePipelineDesc pipelineDesc = {};
pipelineDesc.program = shaderProgram.get();
ComPtr<IComputePipeline> pipelineState;
GFX_CHECK_CALL_ABORT(device->createComputePipeline(pipelineDesc, pipelineState.writeRef()));
const int numberCount = 4;
float initialData[] = {0.0f, 0.0f, 0.0f, 0.0f};
BufferDesc bufferDesc = {};
bufferDesc.size = numberCount * sizeof(float);
bufferDesc.format = rhi::Format::Undefined;
bufferDesc.elementSize = sizeof(float);
bufferDesc.usage = BufferUsage::ShaderResource | BufferUsage::UnorderedAccess |
BufferUsage::CopyDestination | BufferUsage::CopySource;
bufferDesc.defaultState = ResourceState::UnorderedAccess;
bufferDesc.memoryType = MemoryType::DeviceLocal;
ComPtr<IBuffer> numbersBuffer;
GFX_CHECK_CALL_ABORT(
device->createBuffer(bufferDesc, (void*)initialData, numbersBuffer.writeRef()));
auto queue = device->getQueue(QueueType::Graphics);
// We have done all the set up work, now it is time to start recording a command buffer for
// GPU execution.
{
auto commandEncoder = queue->createCommandEncoder();
auto computePassEncoder = commandEncoder->beginComputePass();
auto rootObject = computePassEncoder->bindPipeline(pipelineState);
ShaderCursor entryPointCursor(
rootObject->getEntryPoint(0)); // get a cursor the the first entry-point.
// Bind buffer to the entry point.
entryPointCursor.getPath("buffer").setBinding(Binding(numbersBuffer));
computePassEncoder->dispatchCompute(1, 1, 1);
computePassEncoder->end();
auto commandBuffer = commandEncoder->finish();
queue->submit(commandBuffer);
queue->waitOnHost();
}
compareComputeResult(device, numbersBuffer, std::array{30});
}
SLANG_UNIT_TEST(linkTimeTypeMultiUseD3D12)
{
runTestImpl(linkTimeTypeMultiUseTestImpl, unitTestContext, DeviceType::D3D12);
}
SLANG_UNIT_TEST(linkTimeTypeMultiUseVulkan)
{
runTestImpl(linkTimeTypeMultiUseTestImpl, unitTestContext, DeviceType::Vulkan);
}
} // namespace gfx_test
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