diff options
Diffstat (limited to 'src/shader_recompiler/backend/spirv')
4 files changed, 27 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_context.cpp b/src/shader_recompiler/backend/spirv/emit_context.cpp index 96d0e9b4d..7531f8b21 100644 --- a/src/shader_recompiler/backend/spirv/emit_context.cpp +++ b/src/shader_recompiler/backend/spirv/emit_context.cpp @@ -393,6 +393,14 @@ void EmitContext::DefineInputs(const Info& info) { subgroup_local_invocation_id = DefineInput(*this, U32[1], spv::BuiltIn::SubgroupLocalInvocationId); } + if (info.uses_fswzadd) { + const Id f32_one{Constant(F32[1], 1.0f)}; + const Id f32_minus_one{Constant(F32[1], -1.0f)}; + const Id f32_zero{Constant(F32[1], 0.0f)}; + fswzadd_lut_a = ConstantComposite(F32[4], f32_minus_one, f32_one, f32_minus_one, f32_zero); + fswzadd_lut_b = + ConstantComposite(F32[4], f32_minus_one, f32_minus_one, f32_one, f32_minus_one); + } if (info.loads_position) { const bool is_fragment{stage != Stage::Fragment}; const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::Position : spv::BuiltIn::FragCoord}; diff --git a/src/shader_recompiler/backend/spirv/emit_context.h b/src/shader_recompiler/backend/spirv/emit_context.h index 1a4e8221a..ffac39c4f 100644 --- a/src/shader_recompiler/backend/spirv/emit_context.h +++ b/src/shader_recompiler/backend/spirv/emit_context.h @@ -103,6 +103,8 @@ public: Id vertex_index{}; Id base_vertex{}; Id front_face{}; + Id fswzadd_lut_a{}; + Id fswzadd_lut_b{}; Id local_memory{}; diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.h b/src/shader_recompiler/backend/spirv/emit_spirv.h index 02648d769..3d0c6f7ba 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv.h +++ b/src/shader_recompiler/backend/spirv/emit_spirv.h @@ -397,5 +397,6 @@ Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clam Id segmentation_mask); Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask); +Id EmitFSwizzleAdd(EmitContext& ctx, Id op_a, Id op_b, Id swizzle); } // namespace Shader::Backend::SPIRV diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp index 44d8a347f..cbc5b1c96 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp @@ -132,4 +132,20 @@ Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id return SelectValue(ctx, in_range, value, src_thread_id); } +Id EmitFSwizzleAdd(EmitContext& ctx, Id op_a, Id op_b, Id swizzle) { + const Id three{ctx.Constant(ctx.U32[1], 3)}; + Id mask{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; + mask = ctx.OpBitwiseAnd(ctx.U32[1], mask, three); + mask = ctx.OpShiftLeftLogical(ctx.U32[1], mask, ctx.Constant(ctx.U32[1], 1)); + mask = ctx.OpShiftRightLogical(ctx.U32[1], swizzle, mask); + mask = ctx.OpBitwiseAnd(ctx.U32[1], mask, three); + + const Id modifier_a{ctx.OpVectorExtractDynamic(ctx.F32[1], ctx.fswzadd_lut_a, mask)}; + const Id modifier_b{ctx.OpVectorExtractDynamic(ctx.F32[1], ctx.fswzadd_lut_b, mask)}; + + const Id result_a{ctx.OpFMul(ctx.F32[1], op_a, modifier_a)}; + const Id result_b{ctx.OpFMul(ctx.F32[1], op_b, modifier_b)}; + return ctx.OpFAdd(ctx.F32[1], result_a, result_b); +} + } // namespace Shader::Backend::SPIRV |