[vulkan] Adjustment VK_EXT_transform_feedback

src/shader_recompiler/backend/spirv/spirv_emit_context.cpp

@@ -178,6 +178,9 @@ void DefineGenericOutput(EmitContext& ctx, size_t index, std::optional<u32> invo
             ctx.Decorate(id, spv::Decoration::XfbBuffer, xfb_varying->buffer);
             ctx.Decorate(id, spv::Decoration::XfbStride, xfb_varying->stride);
             ctx.Decorate(id, spv::Decoration::Offset, xfb_varying->offset);
+            if (ctx.stage == Stage::Geometry && xfb_varying->stream != 0) {
+                ctx.Decorate(id, spv::Decoration::Stream, xfb_varying->stream);
+            }
         }
         if (num_components < 4 || element > 0) {
             const std::string_view subswizzle{swizzle.substr(element, num_components)};

src/shader_recompiler/runtime_info.h

@@ -76,6 +76,7 @@ enum class TessSpacing {
 
 struct TransformFeedbackVarying {
     u32 buffer{};
+    u32 stream{};
     u32 stride{};
     u32 offset{};
     u32 components{};