diff options
| author | Liam <byteslice@airmail.cc> | 2022-03-17 13:30:21 -0400 |
|---|---|---|
| committer | Liam <byteslice@airmail.cc> | 2022-03-17 13:30:21 -0400 |
| commit | e228a40db807c20a2484169bd0a1447a081ea1ce (patch) | |
| tree | cd69df019ebf505189e5ee897ae042f9bc131119 /src/shader_recompiler/backend/spirv/spirv_emit_context.cpp | |
| parent | 3ac522ba41d10a254bc24bcdce8b0b2535f2b358 (diff) | |
shader_recompiler: Use functions for indirect const buffer accesses
Diffstat (limited to 'src/shader_recompiler/backend/spirv/spirv_emit_context.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/spirv/spirv_emit_context.cpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp index cd90c084aa..f85541a2e2 100644 --- a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp +++ b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp @@ -464,6 +464,7 @@ EmitContext::EmitContext(const Profile& profile_, const RuntimeInfo& runtime_inf DefineSharedMemory(program); DefineSharedMemoryFunctions(program); DefineConstantBuffers(program.info, uniform_binding); + DefineConstantBufferIndirectFunctions(program.info); DefineStorageBuffers(program.info, storage_binding); DefineTextureBuffers(program.info, texture_binding); DefineImageBuffers(program.info, image_binding); @@ -1027,6 +1028,69 @@ void EmitContext::DefineConstantBuffers(const Info& info, u32& binding) { binding += static_cast<u32>(info.constant_buffer_descriptors.size()); } +void EmitContext::DefineConstantBufferIndirectFunctions(const Info& info) { + if (!info.uses_cbuf_indirect) { + return; + } + + const auto make_accessor{[&](Id buffer_type, Id UniformDefinitions::*member_ptr) { + const Id func_type{TypeFunction(buffer_type, U32[1], U32[1])}; + const Id func{OpFunction(buffer_type, spv::FunctionControlMask::MaskNone, func_type)}; + const Id binding{OpFunctionParameter(U32[1])}; + const Id offset{OpFunctionParameter(U32[1])}; + + AddLabel(); + + const Id merge_label{OpLabel()}; + const Id uniform_type{uniform_types.*member_ptr}; + + std::array<Id, Info::MAX_CBUFS> buf_labels; + std::array<Sirit::Literal, Info::MAX_CBUFS> buf_literals; + for (u32 i = 0; i < Info::MAX_CBUFS; i++) { + buf_labels[i] = OpLabel(); + buf_literals[i] = Sirit::Literal{i}; + } + + OpSelectionMerge(merge_label, spv::SelectionControlMask::MaskNone); + OpSwitch(binding, buf_labels[0], buf_literals, buf_labels); + + for (u32 i = 0; i < Info::MAX_CBUFS; i++) { + AddLabel(buf_labels[i]); + const Id cbuf{cbufs[i].*member_ptr}; + const Id access_chain{OpAccessChain(uniform_type, cbuf, u32_zero_value, offset)}; + const Id result{OpLoad(buffer_type, access_chain)}; + OpReturnValue(result); + } + + AddLabel(merge_label); + OpUnreachable(); + OpFunctionEnd(); + + return func; + }}; + + IR::Type types{info.used_constant_buffer_types}; + + if (True(types & IR::Type::U8)) { + load_const_func_u8 = make_accessor(U8, &UniformDefinitions::U8); + } + if (True(types & IR::Type::U16)) { + load_const_func_u16 = make_accessor(U16, &UniformDefinitions::U16); + } + if (True(types & IR::Type::F32)) { + load_const_func_f32 = make_accessor(F32[1], &UniformDefinitions::F32); + } + if (True(types & IR::Type::U32)) { + load_const_func_u32 = make_accessor(U32[1], &UniformDefinitions::U32); + } + if (True(types & IR::Type::U32x2)) { + load_const_func_u32x2 = make_accessor(U32[2], &UniformDefinitions::U32x2); + } + if (True(types & IR::Type::U32x4)) { + load_const_func_u32x4 = make_accessor(U32[4], &UniformDefinitions::U32x4); + } +} + void EmitContext::DefineStorageBuffers(const Info& info, u32& binding) { if (info.storage_buffers_descriptors.empty()) { return; |