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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;
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
{
static const int offset;
[mutating] void setValue(float v);
float getValue();
property float val2{get;set;}
}
struct FooImpl : IFoo
{
float val;
static const int offset = -1;
[mutating] void setValue(float v) { val = v; }
float getValue() { return val + 1.0; }
property float val2 {
get { return val + 2.0; }
set { val = newValue; }
}
};
struct BarImpl : IFoo
{
float val;
static const int offset = 2;
[mutating] void setValue(float v) { val = v; }
float getValue() { return val + 1.0; }
property float val2 {
get { return val; }
set { val = newValue; }
}
};
)";
const char* module0Src = R"(
import ifoo;
extern struct Foo : IFoo = FooImpl;
extern static const float c = 0.0;
[numthreads(1,1,1)]
void computeMain(uniform RWStructuredBuffer<float> buffer)
{
Foo foo;
foo.setValue(3.0);
buffer[0] = foo.getValue() + foo.val2 + Foo.offset + c;
}
)";
const char* module1Src = R"(
import ifoo;
export struct Foo : IFoo = BarImpl;
export static const float c = 1.0;
)";
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 linkTimeDefaultTestImpl(IDevice* device, UnitTestContext* context)
{
// Create pipeline without linking a specialization override module, so we should
// see the default value of `extern Foo`.
ComPtr<IShaderProgram> shaderProgram;
slang::ProgramLayout* slangReflection;
GFX_CHECK_CALL_ABORT(loadProgram(device, shaderProgram, slangReflection, false));
ComputePipelineDesc pipelineDesc = {};
pipelineDesc.program = shaderProgram.get();
ComPtr<IComputePipeline> pipelineState;
GFX_CHECK_CALL_ABORT(device->createComputePipeline(pipelineDesc, pipelineState.writeRef()));
// Create pipeline with a specialization override module linked in, so we should
// see the result of using `Bar` for `extern Foo`.
ComPtr<IShaderProgram> shaderProgram1;
GFX_CHECK_CALL_ABORT(loadProgram(device, shaderProgram1, slangReflection, true));
ComputePipelineDesc pipelineDesc1 = {};
pipelineDesc1.program = shaderProgram1.get();
ComPtr<IComputePipeline> pipelineState1;
GFX_CHECK_CALL_ABORT(device->createComputePipeline(pipelineDesc1, pipelineState1.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{8.0f});
// Now run again with the overrided program.
{
auto commandEncoder = queue->createCommandEncoder();
auto computePassEncoder = commandEncoder->beginComputePass();
auto rootObject = computePassEncoder->bindPipeline(pipelineState1);
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{10.0f});
}
SLANG_UNIT_TEST(linkTimeDefaultD3D12)
{
runTestImpl(linkTimeDefaultTestImpl, unitTestContext, DeviceType::D3D12);
}
SLANG_UNIT_TEST(linkTimeDefaultVulkan)
{
runTestImpl(linkTimeDefaultTestImpl, unitTestContext, DeviceType::Vulkan);
}
} // namespace gfx_test
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