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shader: track buffer liveness and offsets by resource count

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Co-authored-by: fxpw <fxpw@outlook.com>
This commit is contained in:
nmzik
2026-10-14 21:11:14 +02:00
parent 2f6ee0e91d
commit b24ce3440d
7 changed files with 28 additions and 21 deletions
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src/graphics/shader/recompiler/backend/spirv/SpirvEmitter.cpp
+6 -5
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@@ -18,7 +18,7 @@ namespace {
}
void ValidateNativeProgram(const IR::Program& program, bool lds_storage) {
uint64_t live_buffers = 0;
std::vector<bool> live_buffers(program.info.buffers.size());
bool uses_lds = false;
bool uses_gds = false;
const auto uses_mapping = [](const auto& resource) {
@@ -85,12 +85,12 @@ void ValidateNativeProgram(const IR::Program& program, bool lds_storage) {
if (memory.resource >= program.info.buffers.size()) {
Fail(program, "typed shader contains an invalid buffer resource");
}
live_buffers |= uint64_t{1} << memory.resource;
live_buffers[memory.resource] = true;
for (const auto child: program.info.buffers[memory.resource].indirect_resources) {
if (child >= program.info.buffers.size()) {
Fail(program, "typed shader contains an invalid indirect buffer resource");
}
live_buffers |= uint64_t{1} << child;
live_buffers[child] = true;
}
}
}
@@ -149,8 +149,9 @@ void ValidateNativeProgram(const IR::Program& program, bool lds_storage) {
std::array<uint32_t, static_cast<size_t>(Kind::Count)> expected {};
auto& buffer_count = expected[static_cast<size_t>(Kind::Buffers)];
for (uint32_t index = 0; index < program.info.buffers.size(); ++index) {
const auto slot = (live_buffers & (uint64_t{1} << index)) != 0 ? buffer_count++ : UINT32_MAX;
if (program.info.buffers[index].descriptor_index != slot) {
const auto slot = live_buffers[index] ? buffer_count++ : UINT32_MAX;
if (program.info.buffers[index].live != live_buffers[index] ||
program.info.buffers[index].descriptor_index != slot) {
Fail(program, "native buffer descriptor index does not match shader topology");
}
}