maxwell3d: HLE multi-layer clear macro

src/video_core/engines/maxwell_3d.h

@@ -1129,6 +1129,7 @@ public:
             Tegra::RenderTargetFormat format;
             TileMode tile_mode;
             union {
+                u32 depth_volume;
                 BitField<0, 16, u32> depth;
                 BitField<16, 1, u32> volume;
             };

src/video_core/macro/macro_hle.cpp

@@ -126,11 +126,31 @@ void HLE_3F5E74B9C9A50164(Engines::Maxwell3D& maxwell3d, const std::vector<u32>&
     }
 }
 
-constexpr std::array<std::pair<u64, HLEFunction>, 4> hle_funcs{{
+// Multi-layer Clear
+void HLE_EAD26C3E2109B06B(Engines::Maxwell3D& maxwell3d, const std::vector<u32>& parameters) {
+    ASSERT(parameters.size() == 1);
+
+    Engines::Maxwell3D::Regs::ClearSurface clear_params{parameters[0]};
+
+    const u32 rt_index = clear_params.RT;
+    const u32 num_layers = maxwell3d.regs.rt[rt_index].depth_volume;
+
+    for (u32 i = 0; i < num_layers; i++) {
+        // 0x674 = regs.clear_surface
+        maxwell3d.CallMethod(0x674, clear_params.raw, true);
+        clear_params.layer.Assign(clear_params.layer + 1);
+
+        // FIXME: remove this when amdvlk can clear multiple layers without crashing
+        break;
+    }
+}
+
+constexpr std::array<std::pair<u64, HLEFunction>, 5> hle_funcs{{
     {0x771BB18C62444DA0, &HLE_771BB18C62444DA0},
     {0x0D61FC9FAAC9FCAD, &HLE_0D61FC9FAAC9FCAD},
     {0x0217920100488FF7, &HLE_0217920100488FF7},
     {0x3F5E74B9C9A50164, &HLE_3F5E74B9C9A50164},
+    {0xEAD26C3E2109B06B, &HLE_EAD26C3E2109B06B},
 }};
 
 class HLEMacroImpl final : public CachedMacro {