Size hints for copy regions and viewport dimensions to avoid data loss (#1686)

* Size hints for copy regions and viewport dimensions to avoid data loss

* Reword comment.

* Use info for the rule rather than calculating aligned size.

* Reorder min/max, remove spaces

Ryujinx.Graphics.Gpu/Image/TexturePool.cs

@@ -67,6 +67,22 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
             else
             {
+                if (texture.ChangedSize)
+                {
+                    // Texture changed size at one point - it may be a different size than the sampler expects.
+                    // This can be triggered when the size is changed by a size hint on copy or draw, but the texture has been sampled before.
+
+                    TextureDescriptor descriptor = GetDescriptor(id);
+
+                    int width = descriptor.UnpackWidth();
+                    int height = descriptor.UnpackHeight();
+
+                    if (texture.Info.Width != width || texture.Info.Height != height)
+                    {
+                        texture.ChangeSize(width, height, texture.Info.DepthOrLayers);
+                    }
+                }
+
                 // Memory is automatically synchronized on texture creation.
                 texture.SynchronizeMemory();
             }