Handle predication PM4 commands

src/video_core/amdgpu/liverpool.cpp

@@ -394,7 +394,24 @@ Liverpool::Task Liverpool::ProcessGraphics(std::span<const u32> dcb, std::span<c
                 break;
             }
             case PM4ItOpcode::SetPredication: {
-                LOG_WARNING(Render_Vulkan, "Unimplemented IT_SET_PREDICATION");
+                const auto* predication = reinterpret_cast<const PM4CmdSetPredication*>(header);
+                if (predication->continue_bit.Value()) {
+                    LOG_WARNING(Render_Vulkan, "unhandled continue bit in predication command");
+                }
+                if (predication->pred_op.Value() == PredicateOperation::Clear) {
+                    if (rasterizer) {
+                        rasterizer->EndPredication();
+                    }
+                }
+                else if (predication->pred_op.Value() == PredicateOperation::Zpass) {
+                    if (rasterizer) {
+                        rasterizer->StartPredication();
+                    }
+                }
+                else {
+                    LOG_WARNING(Render_Vulkan, "unhandled predicate operation {}",
+                        magic_enum::enum_name(predication->pred_op.Value()));
+                }
                 break;
             }
             case PM4ItOpcode::IndexType: {

src/video_core/renderer_vulkan/vk_rasterizer.cpp

@@ -1263,4 +1263,13 @@ void Rasterizer::ScopedMarkerInsertColor(const std::string_view& str, const u32
              (f32)(color & 0xff) / 255.0f, (f32)((color >> 24) & 0xff) / 255.0f})});
 }
 
+void Rasterizer::StartPredication() {
+
+}
+
+void Rasterizer::EndPredication() {
+    
+}
+
+
 } // namespace Vulkan

src/video_core/renderer_vulkan/vk_rasterizer.h

@@ -55,6 +55,9 @@ public:
     void ScopedMarkerInsertColor(const std::string_view& str, const u32 color,
                                  bool from_guest = false);
 
+    void StartPredication();
+    void EndPredication();
+
     void InlineData(VAddr address, const void* value, u32 num_bytes, bool is_gds);
     u32 ReadDataFromGds(u32 gsd_offset);
     bool InvalidateMemory(VAddr addr, u64 size);