From 14ac0c2923c41df9c6fc4833d2a8e46a6efe5b59 Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Fri, 24 Dec 2021 20:00:28 -0500 Subject: shader: Add integer attribute get optimization pass Works around an nvidia driver bug, where casting the integer attributes to float and back to an integer always returned 0. --- .../backend/glasm/emit_glasm_context_get_set.cpp | 16 ++++++++++++++++ .../backend/glasm/emit_glasm_instructions.h | 1 + 2 files changed, 17 insertions(+) (limited to 'src/shader_recompiler/backend/glasm') diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp index 081b2c8e0..c0f5fc402 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp @@ -126,6 +126,22 @@ void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, Scal } } +void EmitGetAttributeU32(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, ScalarU32) { + switch (attr) { + case IR::Attribute::PrimitiveId: + ctx.Add("MOV.S {}.x,primitive.id;", inst); + break; + case IR::Attribute::InstanceId: + ctx.Add("MOV.S {}.x,{}.instance;", inst, ctx.attrib_name); + break; + case IR::Attribute::VertexId: + ctx.Add("MOV.S {}.x,{}.id;", inst, ctx.attrib_name); + break; + default: + throw NotImplementedException("Get U32 attribute {}", attr); + } +} + void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, ScalarF32 value, [[maybe_unused]] ScalarU32 vertex) { const u32 element{static_cast(attr) % 4}; diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h index 1f343bff5..b48007856 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h +++ b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h @@ -50,6 +50,7 @@ void EmitGetCbufU32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, void EmitGetCbufF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, ScalarU32 offset); void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, ScalarU32 offset); void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, ScalarU32 vertex); +void EmitGetAttributeU32(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, ScalarU32 vertex); void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, ScalarF32 value, ScalarU32 vertex); void EmitGetAttributeIndexed(EmitContext& ctx, IR::Inst& inst, ScalarS32 offset, ScalarU32 vertex); void EmitSetAttributeIndexed(EmitContext& ctx, ScalarU32 offset, ScalarF32 value, ScalarU32 vertex); -- cgit v1.2.3