video_core: Add depth buffer support and fix some bugs (#172)

* memory: Avoid crash when alignment is zero

* Also remove unused file

* shader_recompiler: Add more instructions

* Also fix some minor issues with a few existing instructions

* control_flow: Don't emit discard for null exports

* renderer_vulkan: Add depth buffer support

* liverpool: Fix wrong color buffer number type and viewport zscale

* Also add some more formats

src/video_core/amdgpu/resource.h

@@ -148,10 +148,20 @@ struct Image {
     }
 
     u32 NumLayers() const {
-        return last_array - base_array + 1;
+        u32 slices = type == ImageType::Color3D ? 1 : depth.Value() + 1;
+        if (type == ImageType::Cube) {
+            slices *= 6;
+        }
+        if (pow2pad) {
+            slices = std::bit_ceil(slices);
+        }
+        return slices;
     }
 
     u32 NumLevels() const {
+        if (type == ImageType::Color2DMsaa || type == ImageType::Color2DMsaaArray) {
+            return 1;
+        }
         return last_level + 1;
     }