surface_view: Add constructor for ViewParams

src/video_core/renderer_opengl/gl_texture_cache.cpp

@@ -226,13 +226,8 @@ CachedSurface::CachedSurface(const GPUVAddr gpu_addr, const SurfaceParams& param
     target = GetTextureTarget(params.target);
     texture = CreateTexture(params, target, internal_format);
     DecorateSurfaceName();
-    ViewParams main{};
+    main_view = CreateView(
-    main.num_levels = params.num_levels;
+        ViewParams(params.target, 0, params.is_layered ? params.depth : 1, 0, params.num_levels));
-    main.base_level = 0;
-    main.base_layer = 0;
-    main.num_layers = params.is_layered ? params.depth : 1;
-    main.target = params.target;
-    main_view = CreateView(main);
     main_view->DecorateViewName(gpu_addr,
                                 params.TargetName() + "V:" + std::to_string(view_count++));
 }
@@ -378,13 +373,11 @@ void CachedSurfaceView::Attach(GLenum attachment) const {
     switch (owner_params.target) {
     case SurfaceTarget::Texture1D:
         glFramebufferTexture1D(GL_DRAW_FRAMEBUFFER, attachment, surface.GetTarget(),
-                               surface.GetTexture(),
+                               surface.GetTexture(), params.base_level);
-                               params.base_level);
         break;
     case SurfaceTarget::Texture2D:
         glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, attachment, surface.GetTarget(),
-                               surface.GetTexture(),
+                               surface.GetTexture(), params.base_level);
-                               params.base_level);
         break;
     case SurfaceTarget::Texture1DArray:
     case SurfaceTarget::Texture2DArray:

src/video_core/texture_cache/surface_base.h

@@ -253,45 +253,30 @@ public:
     }
 
     TView EmplaceOverview(const SurfaceParams& overview_params) {
-        ViewParams vp{};
+        const u32 num_layers{params.is_layered && !overview_params.is_layered ? 1 : params.depth};
-        vp.base_level = 0;
+        const ViewParams view_params(overview_params.target, 0, num_layers, 0, params.num_levels);
-        vp.num_levels = params.num_levels;
+        return GetView(view_params);
-        vp.target = overview_params.target;
-        if (params.is_layered && !overview_params.is_layered) {
-            vp.base_layer = 0;
-            vp.num_layers = 1;
-        } else {
-            vp.base_layer = 0;
-            vp.num_layers = params.depth;
-        }
-        return GetView(vp);
     }
 
     std::optional<TView> EmplaceView(const SurfaceParams& view_params, const GPUVAddr view_addr) {
-        if (view_addr < gpu_addr)
+        if (view_addr < gpu_addr || params.target == SurfaceTarget::Texture3D ||
-            return {};
-        if (params.target == SurfaceTarget::Texture3D ||
             view_params.target == SurfaceTarget::Texture3D) {
             return {};
         }
-        const std::size_t size = view_params.GetGuestSizeInBytes();
+        const std::size_t size{view_params.GetGuestSizeInBytes()};
-        auto layer_mipmap = GetLayerMipmap(view_addr);
+        const auto layer_mipmap{GetLayerMipmap(view_addr)};
         if (!layer_mipmap) {
             return {};
         }
-        const u32 layer = (*layer_mipmap).first;
+        const u32 layer{layer_mipmap->first};
-        const u32 mipmap = (*layer_mipmap).second;
+        const u32 mipmap{layer_mipmap->second};
         if (GetMipmapSize(mipmap) != size) {
-            // TODO: the view may cover many mimaps, this case can still go on
+            // TODO: The view may cover many mimaps, this case can still go on.
+            // This edge-case can be safely be ignored since it will just result in worse
+            // performance.
             return {};
         }
-        ViewParams vp{};
+        return GetView(ViewParams(params.target, layer, 1, mipmap, 1));
-        vp.base_layer = layer;
-        vp.num_layers = 1;
-        vp.base_level = mipmap;
-        vp.num_levels = 1;
-        vp.target = view_params.target;
-        return {GetView(vp)};
     }
 
     TView GetMainView() const {

src/video_core/texture_cache/surface_view.h

@@ -13,15 +13,21 @@
 namespace VideoCommon {
 
 struct ViewParams {
+    ViewParams(VideoCore::Surface::SurfaceTarget target, u32 base_layer, u32 num_layers,
+               u32 base_level, u32 num_levels)
+        : target{target}, base_layer{base_layer}, num_layers{num_layers}, base_level{base_level},
+          num_levels{num_levels} {}
+
     std::size_t Hash() const;
 
     bool operator==(const ViewParams& rhs) const;
 
+    VideoCore::Surface::SurfaceTarget target{};
     u32 base_layer{};
     u32 num_layers{};
     u32 base_level{};
     u32 num_levels{};
-    VideoCore::Surface::SurfaceTarget target;
+
     bool IsLayered() const {
         switch (target) {
         case VideoCore::Surface::SurfaceTarget::Texture1DArray: