diff options
Diffstat (limited to 'src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp')
-rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp index bc4363824..500e5c290 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp @@ -9,6 +9,18 @@ #include "shader_recompiler/frontend/ir/value.h" namespace Shader::Backend::GLSL { +namespace { +constexpr char cas_loop[]{"for(;;){{uint old_value={};uint " + "cas_result=atomicCompSwap({},old_value,bitfieldInsert({},{},{},{}));" + "if(cas_result==old_value){{break;}}}}"}; + +void SsboWriteCas(EmitContext& ctx, const IR::Value& binding, std::string_view offset_var, + std::string_view value, std::string_view bit_offset, u32 num_bits) { + const auto ssbo{fmt::format("{}_ssbo{}[{}>>2]", ctx.stage_name, binding.U32(), offset_var)}; + ctx.Add(cas_loop, ssbo, ssbo, ssbo, value, bit_offset, num_bits); +} +} // Anonymous namespace + void EmitLoadGlobalU8([[maybe_unused]] EmitContext& ctx) { NotImplemented(); } @@ -125,9 +137,8 @@ void EmitWriteStorageU8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] const IR::Value& offset, [[maybe_unused]] std::string_view value) { const auto offset_var{ctx.var_alloc.Consume(offset)}; - ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int({}%4)*8,8);", ctx.stage_name, - binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var, value, - offset_var); + const auto bit_offset{fmt::format("int({}%4)*8", offset_var)}; + SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 8); } void EmitWriteStorageS8([[maybe_unused]] EmitContext& ctx, @@ -135,9 +146,8 @@ void EmitWriteStorageS8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] const IR::Value& offset, [[maybe_unused]] std::string_view value) { const auto offset_var{ctx.var_alloc.Consume(offset)}; - ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int({}%4)*8,8);", ctx.stage_name, - binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var, value, - offset_var); + const auto bit_offset{fmt::format("int({}%4)*8", offset_var)}; + SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 8); } void EmitWriteStorageU16([[maybe_unused]] EmitContext& ctx, @@ -145,9 +155,8 @@ void EmitWriteStorageU16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] const IR::Value& offset, [[maybe_unused]] std::string_view value) { const auto offset_var{ctx.var_alloc.Consume(offset)}; - ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int(({}>>1)%2)*16,16);", - ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var, - value, offset_var); + const auto bit_offset{fmt::format("int(({}>>1)%2)*16", offset_var)}; + SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 16); } void EmitWriteStorageS16([[maybe_unused]] EmitContext& ctx, @@ -155,9 +164,8 @@ void EmitWriteStorageS16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] const IR::Value& offset, [[maybe_unused]] std::string_view value) { const auto offset_var{ctx.var_alloc.Consume(offset)}; - ctx.Add("{}_ssbo{}[{}>>2]=bitfieldInsert({}_ssbo{}[{}>>2],{},int(({}>>1)%2)*16,16);", - ctx.stage_name, binding.U32(), offset_var, ctx.stage_name, binding.U32(), offset_var, - value, offset_var); + const auto bit_offset{fmt::format("int(({}>>1)%2)*16", offset_var)}; + SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 16); } void EmitWriteStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset, |