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shader: separate exact descriptor row bounds from pointer offsets

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This commit is contained in:
nmzik
2026-10-14 16:55:47 +02:00
parent 487bbf95fd
commit 04cb4c6553
4 changed files with 15 additions and 19 deletions
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src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+5 -6
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@@ -367,13 +367,12 @@ bool MaterializeIndirectDescriptor(const ResourcePlan& p
(table.Stride() & 3u) != 0u || table.Stride() < indirect.table_record_bytes)))
return false;
const bool affine = indirect.table_stride != 0u;
const auto* pointer = indirect.pointer_table ? &*indirect.pointer_table : nullptr;
const uint64_t step = pointer != nullptr ? indirect.table_stride
const uint64_t step = indirect.table_maximum ? indirect.table_stride
: affine ? uint64_t {1} << std::countr_zero(indirect.table_stride) : 4u;
const uint64_t first = ((pointer != nullptr ? indirect.table_offset
const uint64_t first = ((indirect.table_maximum ? indirect.table_offset
: indirect.table_offset % step) & ~uint64_t {3}) +
(indirect.table_immediate & ~3u);
const uint64_t domain = pointer != nullptr ? uint64_t {pointer->maximum} + 1u
const uint64_t domain = indirect.table_maximum ? uint64_t {*indirect.table_maximum} + 1u
: (uint64_t {1} << 32u) / step;
const auto count = table_size >= first + 4u
? std::min((table_size - first - 4u) / step + 1u, domain)
@@ -390,11 +389,11 @@ bool MaterializeIndirectDescriptor(const ResourcePlan& p
snapshot.flattened_srt.resize(mapping_offset + 2u, 0u);
for (uint32_t word = 0; word < count; ++word) {
DescriptorValue candidate {.dword_count = dword_count};
if (pointer != nullptr) {
if (indirect.pointer_offset) {
std::array<uint32_t, 2> address {};
if (!ReadScalarTable(table_base, table_size, first + word * step, runtime, address) ||
!ReadScalarTable((uint64_t {address[1]} << 32u) | address[0], UINT64_MAX,
pointer->offset, runtime,
*indirect.pointer_offset, runtime,
std::span(candidate.dwords).first(dword_count))) return false;
} else if (affine) {
if (!ReadScalarTable(table_base, table_size, first + word * step, runtime,