Shitty Clears + Inline Buffer Improvements?

src/Ryujinx.Graphics.Metal/Shaders/DepthStencilClear.metal

@@ -0,0 +1,37 @@
+#include <metal_stdlib>
+
+using namespace metal;
+
+struct VertexOut {
+    float4 position [[position]];
+};
+
+struct FragmentOut {
+    float4 color [[color(0)]];
+    float depth [[depth(any)]];
+};
+
+vertex VertexOut vertexMain(ushort vid [[vertex_id]])
+{
+    int low = vid & 1;
+    int high = vid >> 1;
+
+    VertexOut out;
+
+    out.position.x = (float(low) - 0.5f) * 2.0f;
+    out.position.y = (float(high) - 0.5f) * 2.0f;
+    out.position.z = 0.0f;
+    out.position.w = 1.0f;
+
+    return out;
+}
+
+fragment float4 fragmentMain(VertexOut in [[stage_in]],
+                             constant float clear_color [[buffer(0)]])
+{
+    Fragment out;
+
+    out.depth = clear_color;
+
+    return out;
+}