Implement DrawTexture functionality (#2747)

* Implement DrawTexture functionality

* Non-NVIDIA support

* Disable some features that should not affect draw texture (slow path)

* Remove space from shader source

* Match 2D engine names

* Fix resolution scale and add missing XML docs

* Disable transform feedback for draw texture fallback

2 files changed, 26 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Gpu/Image/TextureBindingsManager.cs b/Ryujinx.Graphics.Gpu/Image/TextureBindingsManager.cs
index 5862ea71..621dc2e7 100644
--- a/Ryujinx.Graphics.Gpu/Image/TextureBindingsManager.cs
+++ b/Ryujinx.Graphics.Gpu/Image/TextureBindingsManager.cs
@@ -202,6 +202,22 @@ namespace Ryujinx.Graphics.Gpu.Image
         }
 
         /// <summary>
+        /// Gets a texture and a sampler from their respective pools from a texture ID and a sampler ID.
+        /// </summary>
+        /// <param name="textureId">ID of the texture</param>
+        /// <param name="samplerId">ID of the sampler</param>
+        public (Texture, Sampler) GetTextureAndSampler(int textureId, int samplerId)
+        {
+            ulong texturePoolAddress = _texturePoolAddress;
+
+            TexturePool texturePool = texturePoolAddress != 0
+                ? _texturePoolCache.FindOrCreate(_channel, texturePoolAddress, _texturePoolMaximumId)
+                : null;
+
+            return (texturePool.Get(textureId), _samplerPool.Get(samplerId));
+        }
+
+        /// <summary>
         /// Updates the texture scale for a given texture or image.
         /// </summary>
         /// <param name="texture">Start GPU virtual address of the pool</param>
diff --git a/Ryujinx.Graphics.Gpu/Image/TextureManager.cs b/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
index a6373872..70cb57d0 100644
--- a/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
+++ b/Ryujinx.Graphics.Gpu/Image/TextureManager.cs
@@ -309,6 +309,16 @@ namespace Ryujinx.Graphics.Gpu.Image
         }
 
         /// <summary>
+        /// Gets a texture and a sampler from their respective pools from a texture ID and a sampler ID.
+        /// </summary>
+        /// <param name="textureId">ID of the texture</param>
+        /// <param name="samplerId">ID of the sampler</param>
+        public (Texture, Sampler) GetGraphicsTextureAndSampler(int textureId, int samplerId)
+        {
+            return _gpBindingsManager.GetTextureAndSampler(textureId, samplerId);
+        }
+
+        /// <summary>
         /// Commits bindings on the compute pipeline.
         /// </summary>
         public void CommitComputeBindings()