fix(dxmt): populate correct render target array length for RT/DS zero-init

Author: 3Shain

src/dxmt/dxmt_resource_initializer.cpp

@@ -89,7 +89,22 @@ ResourceInitializer::initDepthStencilWithZero(
     RETAIN(allocation);
     ALLOC_CLEAR(info);
 
-    info->render_target_array_length = 0;
+    switch (texture->textureType()) {
+    case WMTTextureType1DArray:
+    case WMTTextureType2DArray:
+    case WMTTextureType2DMultisampleArray:
+    case WMTTextureTypeCube:
+    case WMTTextureTypeCubeArray:
+      info->render_target_array_length = texture->arrayLength();
+      break;
+    case WMTTextureType3D:
+      // should be unreachable since depth stencil texture cannot be 3d or cube
+      info->render_target_array_length = std::max(1u, texture->depth() >> level);
+      break;
+    default:
+      info->render_target_array_length = 0;
+      break;
+    }
     info->render_target_width = width_sub;
     info->render_target_height = height_sub;
     if (dsv_planar & 1) {
@@ -126,7 +141,21 @@ ResourceInitializer::initRenderTargetWithZero(
     RETAIN(allocation);
     ALLOC_CLEAR(info);
 
-    info->render_target_array_length = texture->textureType() == WMTTextureType3D ? texture->depth() : 0;
+    switch (texture->textureType()) {
+    case WMTTextureType1DArray:
+    case WMTTextureType2DArray:
+    case WMTTextureType2DMultisampleArray:
+    case WMTTextureTypeCube:
+    case WMTTextureTypeCubeArray:
+      info->render_target_array_length = texture->arrayLength();
+      break;
+    case WMTTextureType3D:
+      info->render_target_array_length = std::max(1u, texture->depth() >> level);
+      break;
+    default:
+      info->render_target_array_length = 0;
+      break;
+    }
     info->render_target_width = width_sub;
     info->render_target_height = height_sub;
     info->colors[0].texture = allocation->texture();