shader: Implement SR_Y_DIRECTION

2 files changed, 8 insertions, 0 deletions

diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.h b/src/shader_recompiler/backend/spirv/emit_spirv.h
index d43c72f6e..7949d08d0 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.h
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.h
@@ -72,6 +72,7 @@ Id EmitLocalInvocationId(EmitContext& ctx);
 Id EmitInvocationId(EmitContext& ctx);
 Id EmitSampleId(EmitContext& ctx);
 Id EmitIsHelperInvocation(EmitContext& ctx);
+Id EmitYDirection(EmitContext& ctx);
 Id EmitLoadLocal(EmitContext& ctx, Id word_offset);
 void EmitWriteLocal(EmitContext& ctx, Id word_offset, Id value);
 Id EmitUndefU1(EmitContext& ctx);
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
index e5e4c352b..1030404c0 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
@@ -403,6 +403,13 @@ Id EmitIsHelperInvocation(EmitContext& ctx) {
     return ctx.OpLoad(ctx.U1, ctx.is_helper_invocation);
 }
 
+Id EmitYDirection(EmitContext& ctx) {
+    if (ctx.profile.y_negate) {
+        return ctx.Constant(ctx.F32[1], -1.0f);
+    }
+    return ctx.Constant(ctx.F32[1], 1.0f);
+}
+
 Id EmitLoadLocal(EmitContext& ctx, Id word_offset) {
     const Id pointer{ctx.OpAccessChain(ctx.private_u32, ctx.local_memory, word_offset)};
     return ctx.OpLoad(ctx.U32[1], pointer);