Resolve scalar image tables during resource planning

This commit is contained in:
nmzik 2026-09-23 11:30:09 +04:00
parent eb8a5504a3
commit 66f1a82365
4 changed files with 365 additions and 124 deletions

View File

@ -459,11 +459,13 @@ struct BlockInfo {
struct DescriptorSource {
struct IndirectImage {
uint32_t material_source = 0;
uint32_t heap_source = 0;
uint32_t material_source = UINT32_MAX;
uint32_t table_source = 0;
uint32_t selector_stride = 0;
uint32_t selector_offset = 0;
uint32_t key_arg = 0;
uint32_t table_offset = 0;
uint32_t key_count = 0;
bool operator==(const IndirectImage& other) const = default;
};

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@ -166,16 +166,15 @@ bool ReadSpecializationWord(const SrtRuntime& runtime, uint64_t address, uint32_
runtime.read_specialization_memory(runtime.userdata, address, &word);
}
bool ReadScalarBufferWord(const ShaderBufferResource& descriptor, uint32_t dynamic_offset,
uint32_t immediate_offset, const SrtRuntime& runtime, uint32_t& word) {
bool ReadScalarTableWord(uint64_t base, uint64_t size, uint32_t dynamic_offset,
uint32_t immediate_offset, const SrtRuntime& runtime, uint32_t& word) {
const auto byte_offset = static_cast<uint64_t>(dynamic_offset) + immediate_offset;
const auto aligned = byte_offset & ~uint64_t {3};
const auto size = descriptor.GetSize();
if (aligned > size || size - aligned < sizeof(uint32_t)) {
word = 0;
return true;
}
const auto base = descriptor.Base48() & ~uint64_t {3};
base &= AddressMask & ~uint64_t {3};
if (aligned > AddressMask - base) {
return false;
}
@ -189,39 +188,59 @@ bool ReadScalarBufferWord(const ShaderBufferResource& descriptor, uint32_t dynam
bool MaterializeIndirectImage(const ResourcePlan& program,
const DescriptorSource::IndirectImage& indirect,
const DescriptorValue& material_value,
const DescriptorValue& heap_value, uint32_t image_index,
const DescriptorValue& table_value, uint32_t image_index,
const SrtRuntime& runtime, ResourceSnapshot& snapshot,
ResourceSpecialization& specialization) {
ShaderBufferResource material;
ShaderBufferResource heap;
if (!DecodeBufferDescriptor(material_value, material) ||
!DecodeBufferDescriptor(heap_value, heap) || material.Stride() != indirect.selector_stride) {
return false;
}
// Enumerate every wrapped scalar-buffer offset that can pass the descriptor bounds.
const auto step = std::gcd<uint64_t>(indirect.selector_stride, uint64_t {1} << 32u);
const auto residue = static_cast<uint64_t>(indirect.selector_offset) % step;
const auto limit = std::min<uint64_t>(UINT32_MAX, material.GetSize() + 3u);
const auto probe_count = residue <= limit ? (limit - residue) / step + 1u : 0u;
if (probe_count > MaxIndirectImageProbes) {
uint64_t table_base = 0;
uint64_t table_size = UINT64_MAX; // Scalar addresses have no buffer descriptor bounds.
ShaderBufferResource table;
if (table_value.dword_count == 2u) {
table_base = (static_cast<uint64_t>(table_value.dwords[1]) << 32u) | table_value.dwords[0];
} else if (DecodeBufferDescriptor(table_value, table)) {
table_base = table.Base48();
table_size = table.GetSize();
} else {
return false;
}
auto& keys = program.material_keys;
keys.clear();
keys.reserve(static_cast<size_t>(probe_count) + 1u);
keys.push_back(0u);
for (uint64_t offset = residue; offset <= limit && probe_count != 0u; offset += step) {
uint32_t key = 0;
if (!ReadScalarBufferWord(material, static_cast<uint32_t>(offset), 0u, runtime, key)) {
if (indirect.material_source == UINT32_MAX) {
if (table_value.dword_count != 2u || indirect.key_count == 0u ||
indirect.key_count > MaxIndirectImageProbes) {
return false;
}
keys.push_back(key);
if (limit - offset < step) {
break;
keys.resize(indirect.key_count);
std::iota(keys.begin(), keys.end(), 0u);
} else {
ShaderBufferResource material;
if (!DecodeBufferDescriptor(material_value, material) || table_value.dword_count != 4u ||
material.Stride() != indirect.selector_stride) {
return false;
}
// Enumerate every wrapped scalar-buffer offset that can pass the descriptor bounds.
const auto step = std::gcd<uint64_t>(indirect.selector_stride, uint64_t {1} << 32u);
const auto residue = static_cast<uint64_t>(indirect.selector_offset) % step;
const auto limit = std::min<uint64_t>(UINT32_MAX, material.GetSize() + 3u);
const auto probe_count = residue <= limit ? (limit - residue) / step + 1u : 0u;
if (probe_count > MaxIndirectImageProbes) {
return false;
}
keys.reserve(static_cast<size_t>(probe_count) + 1u);
keys.push_back(0u);
for (uint64_t offset = residue; offset <= limit && probe_count != 0u; offset += step) {
uint32_t key = 0;
if (!ReadScalarTableWord(material.Base48(), material.GetSize(),
static_cast<uint32_t>(offset), 0u, runtime, key)) {
return false;
}
keys.push_back(key);
if (limit - offset < step) {
break;
}
}
std::ranges::sort(keys);
keys.erase(std::unique(keys.begin(), keys.end()), keys.end());
}
std::ranges::sort(keys);
keys.erase(std::unique(keys.begin(), keys.end()), keys.end());
const auto children_begin = snapshot.images.size();
const auto mapping_offset = snapshot.flattened_srt.size();
@ -232,10 +251,10 @@ bool MaterializeIndirectImage(const ResourcePlan& program,
const auto key = keys[entry];
DescriptorValue candidate;
candidate.dword_count = 8u;
const auto heap_offset = key << 5u;
const auto table_offset = (key << 5u) + indirect.table_offset;
for (uint32_t dword = 0; dword < candidate.dword_count; ++dword) {
if (!ReadScalarBufferWord(heap, heap_offset, dword * sizeof(uint32_t), runtime,
candidate.dwords[dword])) {
if (!ReadScalarTableWord(table_base, table_size, table_offset, dword * sizeof(uint32_t),
runtime, candidate.dwords[dword])) {
return false;
}
}
@ -816,7 +835,7 @@ ResourcePlan ExtractResourcePlan(const Program& program) {
plan.requires_specialization_memory = true;
MarkCleanFlatSlots(plan, Source(plan, source->indirect_image->material_source),
plan.clean_flat_slots);
MarkCleanFlatSlots(plan, Source(plan, source->indirect_image->heap_source),
MarkCleanFlatSlots(plan, Source(plan, source->indirect_image->table_source),
plan.clean_flat_slots);
}
return plan;
@ -892,10 +911,11 @@ bool MaterializeResources(const ResourcePlan& program, const SrtRuntime& runtime
}
const auto& indirect = *source->indirect_image;
DescriptorValue material;
DescriptorValue heap;
if (!clean.EvaluateDescriptor(indirect.material_source, material) ||
!clean.EvaluateDescriptor(indirect.heap_source, heap) ||
!MaterializeIndirectImage(program, indirect, material, heap, i, runtime, snapshot,
DescriptorValue table;
if ((indirect.material_source != UINT32_MAX &&
!clean.EvaluateDescriptor(indirect.material_source, material)) ||
!clean.EvaluateDescriptor(indirect.table_source, table) ||
!MaterializeIndirectImage(program, indirect, material, table, i, runtime, snapshot,
specialization)) {
return false;
}

View File

@ -344,16 +344,26 @@ private:
}
const MemoryInfo* ScalarReadMemory(const Inst& read, uint32_t& index) const {
if (read.GetOpcode() != ValueOpcode::ReadConstBuffer || read.NumArgs() != 2u) {
const bool address = read.GetOpcode() == ValueOpcode::LoadAddressU32;
if (!(address ? read.NumArgs() == 4u
: read.GetOpcode() == ValueOpcode::ReadConstBuffer && read.NumArgs() == 2u)) {
return nullptr;
}
if (address) {
const auto high = read.Arg(2).Resolve();
const auto enabled = read.Arg(3).Resolve();
if (!high.IsImmediate() || high.GetType() != Type::U32 || high.U32() != 0u ||
!enabled.IsImmediate() || enabled.GetType() != Type::U1 || !enabled.U1()) {
return nullptr;
}
}
index = read.Flags<MemoryFlags>().index;
if (index >= m_program.memory_info.size()) {
return nullptr;
}
const auto& memory = m_program.memory_info[index];
return memory.kind == ResourceKind::ScalarBuffer && memory.data_bits == 32u &&
memory.data_dwords == 1u
return memory.kind == (address ? ResourceKind::ScalarAddress : ResourceKind::ScalarBuffer) &&
memory.data_bits == 32u && memory.data_dwords == 1u
? &memory
: nullptr;
}
@ -376,18 +386,16 @@ private:
return true;
}
bool MakeRuntimeBufferSource(const Inst& handle, uint32_t pc, uint32_t& source,
DescriptorSource& descriptor) {
if (handle.GetOpcode() != ValueOpcode::GetBufferResource) {
bool MakeRuntimeTableSource(const Inst& handle, uint32_t pc,
DescriptorSource& descriptor) {
const auto width = handle.GetOpcode() == ValueOpcode::GetBufferResource ? 4u
: handle.GetOpcode() == ValueOpcode::GetAddressResource ? 2u : 0u;
if (width == 0u) {
return false;
}
MakeSource(handle, 4u, false, false, descriptor, pc);
MakeSource(handle, width, false, false, descriptor, pc);
uint32_t bad_dword = 0;
if (!ValidateSource(descriptor, bad_dword)) {
return false;
}
source = InternSource(descriptor);
return true;
return ValidateSource(descriptor, bad_dword);
}
bool MatchMaterialOffset(Value value, Value& selector, uint32_t& stride,
@ -424,106 +432,183 @@ private:
selector_inst->GetOpcode() == ValueOpcode::ReadFirstLane;
}
bool NonzeroOnEntry(Value value, const Block* block) const {
if (m_program.blocks.size() != m_program.block_info.size()) {
return false;
}
// Each unique predecessor must execute before this use. Stop at joins: an
// unrelated comparison is not a bound on FindILsb's zero-input sentinel.
for (size_t depth = 0; block != nullptr && depth < m_program.blocks.size(); ++depth) {
if (block->ImmPredecessors().size() != 1u) {
return false;
}
const auto* previous = block->ImmPredecessors()[0];
const auto current_it = std::ranges::find(m_program.blocks, block);
const auto previous_it = std::ranges::find(m_program.blocks, previous);
if (current_it == m_program.blocks.end() || previous_it == m_program.blocks.end()) {
return false;
}
const auto& info = m_program.block_info[previous_it - m_program.blocks.begin()];
const auto id = m_program.block_info[current_it - m_program.blocks.begin()].id;
const auto& term = info.terminator;
if (term.kind == CFG::TerminatorKind::ConditionalBranch &&
(term.true_block == id) != (term.false_block == id)) {
bool positive = term.true_block == id;
const auto* test = info.condition.Resolve().TryInstruction();
while (test != nullptr && test->GetOpcode() == ValueOpcode::LogicalNot) {
positive = !positive;
test = test->Arg(0).Resolve().TryInstruction();
}
if (test != nullptr && test->NumArgs() == 2u &&
((test->GetOpcode() == ValueOpcode::INotEqual32 && positive) ||
(test->GetOpcode() == ValueOpcode::IEqual32 && !positive))) {
for (uint32_t arg = 0; arg < 2u; ++arg) {
uint32_t immediate;
if (ImmediateU32(test->Arg(arg), immediate) && immediate == 0u &&
EquivalentValue(m_program, test->Arg(arg ^ 1u), value)) {
return true;
}
}
}
}
block = previous;
}
return false;
}
bool MatchTableOffset(Value value, Value& key, uint32_t& offset) const {
offset = 0;
for (;;) {
const auto* inst = value.Resolve().TryInstruction();
if (inst == nullptr || inst->NumArgs() != 2u) {
return false;
}
uint32_t immediate;
if (inst->GetOpcode() == ValueOpcode::ShiftLeftLogical32 &&
ImmediateU32(inst->Arg(1), immediate) && immediate == 5u) {
key = inst->Arg(0).Resolve();
return key.GetType() == Type::U32;
}
if (inst->GetOpcode() != ValueOpcode::IAdd32) {
return false;
}
if (ImmediateU32(inst->Arg(0), immediate)) {
value = inst->Arg(1);
} else if (ImmediateU32(inst->Arg(1), immediate)) {
value = inst->Arg(0);
} else {
return false;
}
// These additions are shader U32 arithmetic, before the scalar memory offset.
offset += immediate;
}
}
bool TryMakeIndirectImage(Inst& handle, uint32_t pc, IndirectImagePlan& plan) {
if (handle.GetOpcode() != ValueOpcode::GetImageResource || handle.NumArgs() != 8u) {
return false;
}
std::array<Inst*, 8> heap_reads {};
Inst* heap_handle = nullptr;
Value heap_offset;
for (uint32_t dword = 0; dword < heap_reads.size(); dword++) {
heap_reads[dword] = handle.Arg(dword).Resolve().TryInstruction();
if (heap_reads[dword] == nullptr) {
Inst* table_handle = nullptr;
Value key;
uint32_t table_offset = 0;
for (uint32_t dword = 0; dword < plan.reads.size(); ++dword) {
auto* read = handle.Arg(dword).Resolve().TryInstruction();
if (read == nullptr) {
return false;
}
uint32_t memory_index = 0;
const auto* memory = ScalarReadMemory(*heap_reads[dword], memory_index);
if (memory == nullptr || memory->offset != dword * sizeof(uint32_t) ||
!MemoryIndexBelongsTo(memory_index, *heap_reads[dword])) {
uint32_t memory_index = 0;
const auto* memory = ScalarReadMemory(*read, memory_index);
if (memory == nullptr || memory->offset > INT32_MAX || (memory->offset & 3u) != 0u ||
!MemoryIndexBelongsTo(memory_index, *read)) {
return false;
}
auto* current_handle = heap_reads[dword]->Arg(0).Resolve().TryInstruction();
auto* current_handle = read->Arg(0).Resolve().TryInstruction();
Value current_key;
uint32_t offset = 0;
if (current_handle == nullptr ||
(heap_handle != nullptr && current_handle != heap_handle)) {
current_handle->GetOpcode() != (memory->kind == ResourceKind::ScalarAddress
? ValueOpcode::GetAddressResource
: ValueOpcode::GetBufferResource) ||
(memory->kind == ResourceKind::ScalarAddress && read->Parent() != handle.Parent()) ||
(table_handle != nullptr &&
!EquivalentValue(m_program, Value(table_handle), Value(current_handle))) ||
!MatchTableOffset(read->Arg(1), current_key, offset) ||
memory->offset > UINT32_MAX - offset) {
return false;
}
heap_handle = current_handle;
offset += memory->offset;
if (dword == 0u) {
heap_offset = heap_reads[dword]->Arg(1).Resolve();
} else if (!EquivalentValue(m_program, heap_offset, heap_reads[dword]->Arg(1))) {
key = current_key;
table_offset = offset;
} else if (!EquivalentValue(m_program, key, current_key) ||
static_cast<uint64_t>(table_offset) + dword * sizeof(uint32_t) != offset) {
return false;
}
plan.memory[dword] = memory_index;
plan.reads[dword] = heap_reads[dword];
}
const auto* shift = heap_offset.TryInstruction();
uint32_t shift_amount = 0;
if (shift == nullptr || shift->GetOpcode() != ValueOpcode::ShiftLeftLogical32 ||
shift->NumArgs() != 2u || !ImmediateU32(shift->Arg(1), shift_amount) ||
shift_amount != 5u) {
return false;
}
auto* material_read = shift->Arg(0).Resolve().TryInstruction();
if (material_read == nullptr) {
return false;
}
uint32_t material_memory_index = 0;
const auto* material_memory = ScalarReadMemory(*material_read, material_memory_index);
if (material_memory == nullptr || material_memory->offset != 0u ||
!MemoryIndexBelongsTo(material_memory_index, *material_read)) {
return false;
}
auto* material_handle = material_read->Arg(0).Resolve().TryInstruction();
if (material_handle == nullptr) {
return false;
}
Value selector;
uint32_t selector_stride = 0;
uint32_t selector_offset = 0;
if (!MatchMaterialOffset(material_read->Arg(1), selector, selector_stride,
selector_offset)) {
return false;
}
const std::array<const Inst*, 1> material_users {shift};
std::array<const Inst*, 8> heap_users {};
std::copy(heap_reads.begin(), heap_reads.end(), heap_users.begin());
const std::array<const Inst*, 1> image_users {&handle};
if (!UsesOnly(*material_read, material_users) || !UsesOnly(*shift, heap_users)) {
return false;
}
for (const auto* read: heap_reads) {
table_handle = current_handle;
const std::array<const Inst*, 1> image_users {&handle};
if (!UsesOnly(*read, image_users)) {
return false;
}
plan.memory[dword] = memory_index;
plan.reads[dword] = read;
}
DescriptorSource material_source;
DescriptorSource heap_source;
uint32_t material_source_index = 0;
uint32_t heap_source_index = 0;
if (!MakeRuntimeBufferSource(*material_handle, pc, material_source_index,
material_source) ||
!MakeRuntimeBufferSource(*heap_handle, pc, heap_source_index, heap_source)) {
DescriptorSource table_source;
if (!MakeRuntimeTableSource(*table_handle, pc, table_source)) {
return false;
}
DescriptorSource material_source;
DescriptorSource::IndirectImage indirect;
indirect.table_offset = table_offset;
if (table_source.dword_count == 2u) {
const auto* selector = key.Resolve().TryInstruction();
if (m_shader_writes || selector == nullptr ||
selector->GetOpcode() != ValueOpcode::FindILsb32 || selector->NumArgs() != 1u ||
!NonzeroOnEntry(selector->Arg(0), handle.Parent()) ||
(table_offset & 3u) != 0u || table_offset > UINT32_MAX - (32u * 32u - 1u)) {
return false;
}
indirect.key_count = 32u;
} else {
auto* material_read = key.Resolve().TryInstruction();
uint32_t material_memory_index = 0;
const auto* memory = material_read != nullptr
? ScalarReadMemory(*material_read, material_memory_index) : nullptr;
if (table_offset != 0u || memory == nullptr || memory->kind != ResourceKind::ScalarBuffer ||
memory->offset != 0u || !MemoryIndexBelongsTo(material_memory_index, *material_read)) {
return false;
}
Value selector;
if (!MatchMaterialOffset(material_read->Arg(1), selector, indirect.selector_stride,
indirect.selector_offset)) {
return false;
}
const auto* shift = plan.reads[0]->Arg(1).Resolve().TryInstruction();
const std::array<const Inst*, 1> material_users {shift};
if (!UsesOnly(*material_read, material_users) || !UsesOnly(*shift, plan.reads)) {
return false;
}
const auto* material_handle = material_read->Arg(0).Resolve().TryInstruction();
if (material_handle == nullptr ||
material_handle->GetOpcode() != ValueOpcode::GetBufferResource ||
!MakeRuntimeTableSource(*material_handle, pc, material_source)) {
return false;
}
indirect.material_source = InternSource(material_source);
}
indirect.table_source = InternSource(table_source);
DescriptorSource image_source;
image_source.dword_count = 8u;
std::copy(material_source.dwords.begin(), material_source.dwords.begin() + 4u,
image_source.dwords.begin());
std::copy(heap_source.dwords.begin(), heap_source.dwords.begin() + 4u,
image_source.dwords.begin() + 4u);
image_source.indirect_image = DescriptorSource::IndirectImage {
material_source_index, heap_source_index, selector_stride, selector_offset, 0u};
image_source.dwords.fill(Value(0u));
std::copy_n(material_source.dwords.begin(), material_source.dword_count,
image_source.dwords.begin());
std::copy_n(table_source.dwords.begin(), table_source.dword_count,
image_source.dwords.begin() + 4u);
image_source.indirect_image = indirect;
plan.handle = &handle;
plan.source = InternSource(image_source);
plan.key = Value(material_read);
plan.roots = image_source.dwords;
plan.key = key;
plan.roots = image_source.dwords;
return true;
}

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@ -506,6 +506,139 @@ void TestInvariantIndirectImageMaterialization() {
"wrapped scalar immediate entered the invariant image proof");
}
void TestGuardedDirectImageTable() {
namespace CFG = Libs::Graphics::ShaderRecompiler::CFG;
enum class Guard { Nonzero, Zero, Unrelated, Bypass };
const auto make_plan = [](Guard guard) {
Fixture fixture(ShaderType::Pixel);
auto *entry = fixture.block;
auto *middle = fixture.AddBlock();
auto *before_sample = fixture.AddBlock();
auto *sample = fixture.AddBlock();
auto *exit = fixture.AddBlock();
entry->AddBranch(middle);
entry->AddBranch(exit);
middle->AddBranch(before_sample);
before_sample->AddBranch(sample);
sample->AddBranch(exit);
if (guard == Guard::Bypass) exit->AddBranch(sample);
const auto mask = fixture.Emit(ValueOpcode::ReadFirstLane,
{fixture.Emit(ValueOpcode::GetAttribute, {Value(0u), Value(0u)}), Value(true)});
const auto nonzero = fixture.Emit(
ValueOpcode::INotEqual32,
{Value(0u), guard == Guard::Unrelated ? fixture.UserData(2) : mask});
fixture.program.block_info[0].condition =
fixture.Emit(ValueOpcode::LogicalNot, {nonzero});
fixture.program.block_info[0].terminator = {
.kind = CFG::TerminatorKind::ConditionalBranch,
.true_block = guard == Guard::Zero ? 1u : 4u,
.false_block = guard == Guard::Zero ? 4u : 1u};
for (uint32_t block = 1; block < 4; ++block) {
fixture.program.block_info[block].terminator = {
.kind = CFG::TerminatorKind::Branch, .true_block = block + 1u};
}
fixture.program.block_info[4].terminator = {
.kind = guard == Guard::Bypass ? CFG::TerminatorKind::Branch
: CFG::TerminatorKind::Return,
.true_block = 3u};
const auto srt = fixture.Address(fixture.UserData(0), fixture.UserData(1));
std::array<Value, 2> pointer;
for (uint32_t word = 0; word < pointer.size(); ++word) {
MemoryInfo memory;
memory.kind = ResourceKind::ScalarAddress;
memory.offset = word * 4u;
pointer[word] = fixture.Emit(
ValueOpcode::LoadAddressU32, {srt, Value(0u), Value(0u), Value(true)},
fixture.AddMemory(memory, 0x20));
}
fixture.block = sample;
const auto key = fixture.Emit(ValueOpcode::FindILsb32, {mask});
const auto offset = fixture.Emit(ValueOpcode::IAdd32,
{fixture.Emit(ValueOpcode::ShiftLeftLogical32, {key, Value(5u)}),
Value(344u)});
std::array<Value, 8> words;
for (uint32_t group = 0; group < 2u; ++group) {
// Separate equivalent pointer handles mirror the two scalar x4 loads.
const auto table = fixture.Address(pointer[0], pointer[1]);
const auto group_offset = group == 0u ? offset : fixture.Emit(
ValueOpcode::IAdd32, {offset, Value(16u)});
for (uint32_t word = 0; word < 4u; ++word) {
MemoryInfo memory;
memory.kind = ResourceKind::ScalarAddress;
memory.offset = word * 4u;
words[group * 4u + word] = fixture.Emit(
ValueOpcode::LoadAddressU32,
{table, group_offset, Value(0u), Value(true)},
fixture.AddMemory(memory, 0x100 + group * 8u));
}
}
const auto image = fixture.Image(words, 0x128);
const auto sampler = fixture.Sampler({Value(0u), Value(0u), Value(0u), Value(0u)});
MemoryInfo memory;
memory.kind = ResourceKind::Image;
memory.image_dimension = Decoder::ImageDimension::Dim2D;
fixture.Emit(ValueOpcode::ImageSampleRaw, {image, sampler, fixture.ImageAddress()},
fixture.AddMemory(memory, 0x128));
fixture.PlanAndTrack();
const auto source = fixture.program.info.images[0].source;
const auto &indirect = fixture.program.descriptor_sources[source].indirect_image;
Check(indirect && indirect->material_source == UINT32_MAX &&
indirect->selector_stride == 0u && indirect->table_offset == 344u &&
indirect->key_count == 32u &&
fixture.program.descriptor_sources[indirect->table_source].dword_count == 2u,
"guarded direct image table lost its pointer or proven selector range");
return ExtractResourcePlan(fixture.program);
};
auto plan = make_plan(Guard::Nonzero);
for (const auto guard : {Guard::Zero, Guard::Unrelated, Guard::Bypass}) {
CheckFatal([&] { make_plan(guard); }, "not a valid runtime value",
"direct table accepted a selector without a dominating nonzero guard");
}
LinearTestMemory memory;
constexpr uint64_t table = 0x1800u + 344u;
memory.words[0] = 0x1800u;
const auto fill_table = [](LinearTestMemory &memory, uint64_t base) {
for (uint32_t key = 0; key < 32u; ++key) {
const auto word = (base - memory.base) / 4u + key * 8u;
memory.words[word] = 0x100u + key;
memory.words[word + 1u] = static_cast<uint32_t>(
Libs::Graphics::Prospero::BufferFormat::k32_32_32_32Float) << 20u;
memory.words[word + 3u] = Libs::Graphics::DstSel(4, 5, 6, 7) |
(static_cast<uint32_t>(Libs::Graphics::Prospero::ImageType::kColor2D) << 28u);
}
};
fill_table(memory, table);
const std::array<uint32_t, 2> user_data{0x1000u, 0u};
SrtRuntime runtime{.user_data = user_data, .read_memory = ReadLinearTestMemory,
.userdata = &memory,
.read_specialization_memory = ReadLinearTestMemory};
ResourceSnapshot snapshot;
ResourceSpecialization specialization;
Check(MaterializeResources(plan, runtime, snapshot, specialization) &&
snapshot.images.size() == 32u && specialization.images.size() == 32u &&
snapshot.flattened_srt[specialization.images[0].indirect_mapping_offset] == 32u,
"direct table did not retain all 32 reachable descriptors");
memory.words[(table - memory.base) / 4u + 31u * 8u] = 0x987u;
Check(MaterializeResources(plan, runtime, snapshot, specialization) &&
snapshot.images[31].dwords[0] == 0x987u,
"direct table refresh reused stale descriptor contents");
memory.fail_address = table + 31u * 32u + 28u;
Check(!MaterializeResources(plan, runtime, snapshot, specialization),
"direct table accepted an unreadable final descriptor word");
LinearTestMemory wrapping;
wrapping.base = 0u;
wrapping.words[0x1000u / 4u] = 0xffffff00u;
wrapping.words[0x1000u / 4u + 1u] = 0xffffu;
wrapping.watched_address = 88u;
fill_table(wrapping, 88u);
runtime.userdata = &wrapping;
Check(!MaterializeResources(plan, runtime, snapshot, specialization) &&
wrapping.watched_reads == 0u,
"direct table wrapped its descriptor address at the 48-bit boundary");
}
void TestUniformScalarBufferImage() {
Fixture fixture(ShaderType::Pixel);
std::array<Value, 4> material_words;
@ -2232,6 +2365,7 @@ int main() {
Run("FMASK load specialization", TestFmaskLoadSpecialization);
Run("dynamic storage mips", TestDynamicStorageMipTracking);
Run("invariant indirect images", TestInvariantIndirectImageMaterialization);
Run("guarded direct image table", TestGuardedDirectImageTable);
Run("draw-uniform scalar image", TestUniformScalarBufferImage);
Run("SRT runtime", TestSrtFlatteningAndRuntimeMemoization);
Run("dynamic SRT", TestDynamicSrtReadRemainsExplicit);