eden-emu/eden
14
3
Fork 4
Code Issues 3 Pull requests 4 Projects Releases 2 Packages Wiki Activity Actions

shader: add support for const buffer indirect addressing

Browse source
This commit is contained in:
Liam 2022-03-14 19:35:48 -04:00
parent 1077f95f7c
commit 8515dba789
2 changed files with 69 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

35
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
View file

@ -29,6 +29,20 @@ void AddConstantBufferDescriptor(Info& info, u32 index, u32 count) {
});
}
void AddRegisterIndexedLdc(Info& info) {
// The shader can use any possible constant buffer
info.constant_buffer_mask = (1 << Info::MAX_CBUFS) - 1;
auto& cbufs{info.constant_buffer_descriptors};
cbufs.clear();
for (u32 i = 0; i < Info::MAX_CBUFS; i++) {
cbufs.push_back(ConstantBufferDescriptor{.index = i, .count = 1});
// The shader can use any possible access size
info.constant_buffer_used_sizes[i] = 0x10'000;
}
}
void GetPatch(Info& info, IR::Patch patch) {
if (!IR::IsGeneric(patch)) {
throw NotImplementedException("Reading non-generic patch {}", patch);
@ -463,10 +477,12 @@ void VisitUsages(Info& info, IR::Inst& inst) {
case IR::Opcode::GetCbufU32x2: {
const IR::Value index{inst.Arg(0)};
const IR::Value offset{inst.Arg(1)};
if (!index.IsImmediate()) {
throw NotImplementedException("Constant buffer with non-immediate index");
if (index.IsImmediate()) {
AddConstantBufferDescriptor(info, index.U32(), 1);
} else {
AddRegisterIndexedLdc(info);
}
AddConstantBufferDescriptor(info, index.U32(), 1);
u32 element_size{};
switch (inst.GetOpcode()) {
case IR::Opcode::GetCbufU8:
@ -494,11 +510,14 @@ void VisitUsages(Info& info, IR::Inst& inst) {
default:
break;
}
u32& size{info.constant_buffer_used_sizes[index.U32()]};
if (offset.IsImmediate()) {
size = Common::AlignUp(std::max(size, offset.U32() + element_size), 16u);
} else {
size = 0x10'000;
if (index.IsImmediate()) {
u32& size{info.constant_buffer_used_sizes[index.U32()]};
if (offset.IsImmediate()) {
size = Common::AlignUp(std::max(size, offset.U32() + element_size), 16u);
} else {
size = 0x10'000;
}
}
break;
}