Value InterpretedVM::TextureSample(Value sampler, Value coord, Value bias, uint32 resultTypeId) {
STypeSampler* samplerType =(STypeSampler*)GetType(sampler.TypeId).Memory;
assert(samplerType->Content == 2);
assert(ElementCount(coord.TypeId) >= samplerType->Dim + samplerType->Arrayed);
Sampler* s = ((Sampler*)sampler.Memory);
uint32 index = 0;
uint32 acc = 1;
for (int d = 0; d < s->DimCount; d++) {
uint32 dd = s->Dims[d];
uint32 add = (uint32)(*(float*)IndexMemberValue(coord, d).Memory * (dd - 1) + 0.5f);
switch (s->WrapMode) {
case WrapMode::WMClamp: add = add < 0 ? 0 : add > dd - 1 ? dd - 1 : add; break;
case WrapMode::WMRepeat: add = add % dd; break;
}
index += add * acc;
acc *= dd;
}
return VmInit(resultTypeId, ((float*)s->Data) + index * 4);
}
int
start5(char *arg)
{
int pid;
int status;
Tconsole("start5(): Running %s\n", TEST);
Tconsole("start5(): Pagers: %d, Mappings : %d, Pages: %d, Frames: %d, Children %d, Iterations %d, Priority %d.\n", PAGERS, MAPPINGS, PAGES, FRAMES, CHILDREN, ITERATIONS, PRIORITY);
vmRegion = VmInit( MAPPINGS, PAGES, FRAMES, PAGERS );
Spawn("Child", Child, 0,USLOSS_MIN_STACK*7,PRIORITY, &pid);
SemP( sem);
Wait(&pid, &status);
verify(status == 117);
Tconsole("start5 done\n");
//PrintStats();
VmDestroy();
Terminate(1);
return 0;
} /* start5 */
int
start5(char *arg)
{
int pid;
int status;
Tconsole("start5(): Running: %s\n", TEST);
Tconsole("start5(): Pagers: %d\n", PAGERS);
Tconsole(" Mappings: %d\n", MAPPINGS);
Tconsole(" Pages: %d\n", PAGES);
Tconsole(" Frames: %d\n", FRAMES);
Tconsole(" Children: %d\n", CHILDREN);
Tconsole(" Iterations: %d\n", ITERATIONS);
Tconsole(" Priority: %d\n", PRIORITY);
status = VmInit( MAPPINGS, PAGES, FRAMES, PAGERS, &vmRegion );
Tconsole("start5(): after call to VmInit, status = %d\n\n", status);
assert(status == 0);
assert(vmRegion != NULL);
SemCreate(0, &sem);
Spawn("Child", Child, NULL, USLOSS_MIN_STACK * 7, PRIORITY, &pid);
SemP( sem);
Wait(&pid, &status);
assert(status == 117);
Tconsole("start5(): done\n");
//PrintStats();
VmDestroy();
Terminate(1);
return 0;
} /* start5 */
uint32 InterpretedVM::Execute(Function* func) {
prog.CurrentFunction = func;
int pc = 0;
for (;;) {
auto op = func->Ops[pc];
switch (op.Op) {
case Op::OpBranch: {
auto branch = (SBranch*)op.Memory;
pc = func->Labels.at(branch->TargetLabelId);
break;
}
case Op::OpBranchConditional: {
auto branch = (SBranchConditional*)op.Memory;
uint32 labelID;
Value val = Dereference(env.Values[branch->ConditionId]);
if (*(bool*)val.Memory) {
labelID = branch->TrueLabelId;
} else {
labelID = branch->FalseLabelId;
}
pc = func->Labels.at(labelID);
break;
}
case Op::OpFunctionCall: {
auto call = (SFunctionCall*)op.Memory;
Function toCall = prog.FunctionDefinitions.at(call->FunctionId);
for (int i = 0; i < call->ArgumentIdsCount; i++) {
env.Values[toCall.Parameters[i].ResultId] = Dereference(env.Values.at(call->ArgumentIds[i]));
}
uint32 resultId = Execute(&toCall);
if (resultId == -1) {
return -1;
}
prog.CurrentFunction = func;
env.Values[call->ResultId] = env.Values[resultId];
break;
}
case Op::OpExtInst: {
auto extInst = (SExtInst*)op.Memory;
Value* ops = new Value[extInst->OperandIdsCount];
for (int i = 0; i < extInst->OperandIdsCount; i++) {
ops[i] = Dereference(env.Values.at(extInst->OperandIds[i]));
}
ExtInstFunc* func = env.Extensions[extInst->SetId][extInst->Instruction];
env.Values[extInst->ResultId] = func(this, extInst->ResultTypeId, extInst->OperandIdsCount, ops);
break;
}
case Op::OpConvertSToF: {
auto convert = (SConvertSToF*)op.Memory;
Value op1 = Dereference(env.Values[convert->SignedValueId]);
env.Values[convert->ResultId] = DoOp(convert->ResultTypeId, Convert<int32, float>, op1);
break;
}
case Op::OpFAdd: {
auto add = (SFAdd*)op.Memory;
Value op1 = Dereference(env.Values[add->Operand1Id]);
Value op2 = Dereference(env.Values[add->Operand2Id]);
env.Values[add->ResultId] = DoOp(add->ResultTypeId, Add<float>, op1, op2);
break;
}
case Op::OpIAdd: {
auto add = (SIAdd*)op.Memory;
Value op1 = Dereference(env.Values[add->Operand1Id]);
Value op2 = Dereference(env.Values[add->Operand2Id]);
env.Values[add->ResultId] = DoOp(add->ResultTypeId, Add<int>, op1, op2);
break;
}
case Op::OpFSub: {
auto sub = (SFSub*)op.Memory;
Value op1 = Dereference(env.Values[sub->Operand1Id]);
Value op2 = Dereference(env.Values[sub->Operand2Id]);
env.Values[sub->ResultId] = DoOp(sub->ResultTypeId, Sub<float>, op1, op2);
break;
}
case Op::OpISub: {
auto sub = (SISub*)op.Memory;
Value op1 = Dereference(env.Values[sub->Operand1Id]);
Value op2 = Dereference(env.Values[sub->Operand2Id]);
env.Values[sub->ResultId] = DoOp(sub->ResultTypeId, Sub<int>, op1, op2);
break;
}
case Op::OpFDiv: {
auto div = (SFDiv*)op.Memory;
Value op1 = Dereference(env.Values[div->Operand1Id]);
Value op2 = Dereference(env.Values[div->Operand2Id]);
env.Values[div->ResultId] = DoOp(div->ResultTypeId, Div<float>, op1, op2);
break;
}
case Op::OpFMul: {
auto mul = (SFMul*)op.Memory;
Value op1 = Dereference(env.Values[mul->Operand1Id]);
Value op2 = Dereference(env.Values[mul->Operand2Id]);
env.Values[mul->ResultId] = DoOp(mul->ResultTypeId, Mul<float>, op1, op2);
break;
}
case Op::OpIMul: {
auto mul = (SFMul*)op.Memory;
Value op1 = Dereference(env.Values[mul->Operand1Id]);
Value op2 = Dereference(env.Values[mul->Operand2Id]);
env.Values[mul->ResultId] = DoOp(mul->ResultTypeId, Mul<int>, op1, op2);
break;
}
case Op::OpVectorTimesScalar: {
auto vts = (SVectorTimesScalar*)op.Memory;
Value scalar = Dereference(env.Values[vts->ScalarId]);
Value vector = Dereference(env.Values[vts->VectorId]);
env.Values[vts->ResultId] = DoOp(vts->ResultTypeId, [scalar](Value comp) {return Mul<float>(scalar, comp);}, vector);
break;
}
case Op::OpSLessThan: {
auto lessThan = (SSLessThan*)op.Memory;
Value op1 = Dereference(env.Values[lessThan->Operand1Id]);
Value op2 = Dereference(env.Values[lessThan->Operand2Id]);
env.Values[lessThan->ResultId] = DoOp(lessThan->ResultTypeId, [](Value a, Value b) { return Cmp<int32>(a, b) == -1; }, op1, op2);
break;
}
case Op::OpSGreaterThan: {
auto greaterThan = (SSLessThan*)op.Memory;
Value op1 = Dereference(env.Values[greaterThan->Operand1Id]);
Value op2 = Dereference(env.Values[greaterThan->Operand2Id]);
env.Values[greaterThan->ResultId] = DoOp(greaterThan->ResultTypeId, [](Value a, Value b) { return Cmp<int32>(a, b) == 1; }, op1, op2);
break;
}
case Op::OpLoad: {
auto load = (SLoad*)op.Memory;
auto valueToLoad = env.Values.at(load->PointerId);
env.Values[load->ResultId] = valueToLoad;
break;
}
case Op::OpStore: {
auto store = (SStore*)op.Memory;
auto val = env.Values[store->ObjectId];
auto var = GetType(val.TypeId);
if (var.Op == Op::OpTypePointer) {
SetVariable(store->PointerId, val.Memory);
} else {
SetVariable(store->PointerId, &val.Memory);
}
break;
}
case Op::OpTextureSample: {
auto sample = (STextureSample*)op.Memory;
auto sampler = Dereference(env.Values.at(sample->SamplerId));
auto coord = Dereference(env.Values.at(sample->CoordinateId));
Value bias = { 0, 0 };
if (sample->BiasId != 0) {
bias = Dereference(env.Values.at(sample->BiasId));
}
env.Values[sample->ResultId] = TextureSample(sampler, coord, bias, sample->ResultTypeId);
break;
}
case Op::OpLabel:
case Op::OpSelectionMerge:
case Op::OpLoopMerge:
break;
case Op::OpAccessChain: {
auto access = (SAccessChain*)op.Memory;
auto val = Dereference(env.Values.at(access->BaseId));
uint32* indices = new uint32[access->IndexesIdsCount];
for (int i = 0; i < access->IndexesIdsCount; i++) {
indices[i] = *(uint32*)Dereference(env.Values[access->IndexesIds[i]]).Memory;
}
byte* mem = GetPointerInComposite(val.TypeId, val.Memory, access->IndexesIdsCount, indices);
delete indices;
Value res = VmInit(access->ResultTypeId, &mem);
env.Values[access->ResultId] = res;
break;
}
case Op::OpVectorShuffle: {
auto vecShuffle = (SVectorShuffle*)op.Memory;
auto vec1 = Dereference(env.Values.at(vecShuffle->Vector1Id));
auto vec2 = Dereference(env.Values.at(vecShuffle->Vector2Id));
auto result = VmInit(vecShuffle->ResultTypeId, nullptr);
int v1ElCount = ElementCount(vec1.TypeId);
for (int i = 0; i < vecShuffle->ComponentsCount; i++) {
int index = vecShuffle->Components[i];
Value toCopy;
if (index < v1ElCount) {
toCopy = vec1;
} else {
index -= v1ElCount;
toCopy = vec2;
}
Value elToCopy = IndexMemberValue(toCopy, index);
memcpy(IndexMemberValue(result, i).Memory, elToCopy.Memory, GetTypeByteSize(elToCopy.TypeId));
}
env.Values[vecShuffle->ResultId] = result;
break;
}
//TODO: FIX INDICES (NOT HIERARCHY!)
case Op::OpCompositeExtract: {
auto extract = (SCompositeExtract*)op.Memory;
auto composite = env.Values[extract->CompositeId];
byte* mem = GetPointerInComposite(composite.TypeId, composite.Memory, extract->IndexesCount, extract->Indexes);
Value val = { extract->ResultTypeId, VmAlloc(extract->ResultTypeId) };
memcpy(val.Memory, mem, GetTypeByteSize(val.TypeId));
env.Values[extract->ResultId] = val;
break;
}
case Op::OpCompositeInsert: {
auto insert = (SCompositeInsert*)op.Memory;
auto composite = Dereference(env.Values[insert->CompositeId]);
Value val = Dereference(env.Values.at(insert->ObjectId));
byte* mem = GetPointerInComposite(composite.TypeId, composite.Memory, insert->IndexesCount, insert->Indexes);
memcpy(mem, val.Memory, GetTypeByteSize(val.TypeId));
env.Values[insert->ResultId] = VmInit(composite.TypeId, composite.Memory);
break;
}
case Op::OpCompositeConstruct: {
auto construct = (SCompositeConstruct*)op.Memory;
Value val = { construct->ResultTypeId, VmAlloc(construct->ResultTypeId) };
env.Values[construct->ResultId] = val;
byte* memPtr = val.Memory;
for (int i = 0; i < construct->ConstituentsIdsCount; i++) {
auto memVal = env.Values[construct->ConstituentsIds[i]];
uint32 memSize = GetTypeByteSize(memVal.TypeId);
memcpy(memPtr, memVal.Memory, memSize);
memPtr += memSize;
}
assert(memPtr - val.Memory == GetTypeByteSize(construct->ResultTypeId));
break;
}
case Op::OpVariable: {
auto var = (SVariable*)op.Memory;
Value val = { var->ResultTypeId, VmAlloc(var->ResultTypeId) };
if (var->InitializerId) {
memcpy(val.Memory, env.Values[var->InitializerId].Memory, GetTypeByteSize(val.TypeId));
}
else {
memset(val.Memory, 0, GetTypeByteSize(val.TypeId));
}
env.Values[var->ResultId] = val;
break;
}
case Op::OpReturnValue: {
auto ret = (SReturnValue*)op.Memory;
return ret->ValueId;
}
case Op::OpReturn:
return 0;
default:
std::cout << "Unimplemented operation: " << writeOp(op);
return -1;
}
pc++;
}
return 0;
}
