Allow copy destination to have a different scale from source (#1711)

* Allow copy destination to have a different scale from source

Will result in more scaled copy destinations, but allows scaling in some games that copy textures to the output framebuffer.

* Support copying multiple levels/layers

Uses glFramebufferTextureLayer to copy multiple layers, copies levels individually (and scales the regions).

Remove CopyArrayScaled, since the backend copy handles it now.

2 files changed, 9 insertions, 51 deletions

diff --git a/Ryujinx.Graphics.Gpu/Image/Texture.cs b/Ryujinx.Graphics.Gpu/Image/Texture.cs
index 21418a4b..7fb41572 100644
--- a/Ryujinx.Graphics.Gpu/Image/Texture.cs
+++ b/Ryujinx.Graphics.Gpu/Image/Texture.cs
@@ -431,48 +431,6 @@ namespace Ryujinx.Graphics.Gpu.Image
         }
 
         /// <summary>
-        /// Helper method for copying our Texture2DArray texture to the given target, with scaling.
-        /// This creates temporary views for each array layer on both textures, copying each one at a time.
-        /// </summary>
-        /// <param name="target">The texture array to copy to</param>
-        private void CopyArrayScaled(ITexture target)
-        {
-            TextureInfo viewInfo = new TextureInfo(
-                Info.Address,
-                Info.Width,
-                Info.Height,
-                1,
-                Info.Levels,
-                Info.SamplesInX,
-                Info.SamplesInY,
-                Info.Stride,
-                Info.IsLinear,
-                Info.GobBlocksInY,
-                Info.GobBlocksInZ,
-                Info.GobBlocksInTileX,
-                Target.Texture2D,
-                Info.FormatInfo,
-                Info.DepthStencilMode,
-                Info.SwizzleR,
-                Info.SwizzleG,
-                Info.SwizzleB,
-                Info.SwizzleA);
-
-            TextureCreateInfo createInfo = TextureManager.GetCreateInfo(viewInfo, _context.Capabilities, ScaleFactor);
-
-            for (int i = 0; i < Info.DepthOrLayers; i++)
-            {
-                ITexture from = HostTexture.CreateView(createInfo, i, 0);
-                ITexture to = target.CreateView(createInfo, i, 0);
-
-                from.CopyTo(to, new Extents2D(0, 0, from.Width, from.Height), new Extents2D(0, 0, to.Width, to.Height), true);
-
-                from.Release();
-                to.Release();
-            }
-        }
-
-        /// <summary>
         /// Copy the host texture to a scaled one. If a texture is not provided, create it with the given scale.
         /// </summary>
         /// <param name="scale">Scale factor</param>
@@ -486,14 +444,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                 storage = _context.Renderer.CreateTexture(createInfo, scale);
             }
 
-            if (Info.Target == Target.Texture2DArray)
-            {
-                CopyArrayScaled(storage);
-            }
-            else
-            {
-                HostTexture.CopyTo(storage, new Extents2D(0, 0, HostTexture.Width, HostTexture.Height), new Extents2D(0, 0, storage.Width, storage.Height), true);
-            }
+            HostTexture.CopyTo(storage, new Extents2D(0, 0, HostTexture.Width, HostTexture.Height), new Extents2D(0, 0, storage.Width, storage.Height), true);
 
             return storage;
         }
diff --git a/Ryujinx.Graphics.Gpu/Image/TextureManager.cs b/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
index f1d31f4f..8e64ca61 100644
--- a/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
+++ b/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
@@ -387,7 +387,7 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <returns>True if eligible</returns>
         public bool IsUpscaleCompatible(TextureInfo info)
         {
-            return (info.Target == Target.Texture2D || info.Target == Target.Texture2DArray) && info.Levels == 1 && !info.FormatInfo.IsCompressed && UpscaleSafeMode(info);
+            return (info.Target == Target.Texture2D || info.Target == Target.Texture2DArray) && !info.FormatInfo.IsCompressed && UpscaleSafeMode(info);
         }
 
         /// <summary>
@@ -401,6 +401,13 @@ namespace Ryujinx.Graphics.Gpu.Image
             // While upscaling works for all targets defined by IsUpscaleCompatible, we additionally blacklist targets here that
             // may have undesirable results (upscaling blur textures) or simply waste GPU resources (upscaling texture atlas).
 
+            if (info.Levels > 3)
+            {
+                // Textures with more than 3 levels are likely to be game textures, rather than render textures.
+                // Small textures with full mips are likely to be removed by the next check.
+                return false;
+            }
+
             if (!(info.FormatInfo.Format.IsDepthOrStencil() || info.FormatInfo.Components == 1))
             {
                 // Discount square textures that aren't depth-stencil like. (excludes game textures, cubemap faces, most 3D texture LUT, texture atlas)