[Rendering] Remove unnecessary vertex/index buffer check;

Author: LittleCodingFox

Engine/Staple.Core/Rendering/RenderSystem/Backend/Impls/SDLGPU/Commands/SDLGPURenderCommand.cs

@@ -89,21 +89,11 @@ binding.buffer is not SDLGPUVertexBuffer v ||
 
         indexBinding.Buffer = indexBuffer.buffer;
 
-        if (SDLGPURendererBackend.lastVertexBuffer != vertexBuffer.buffer)
-        {
-            SDLGPURendererBackend.lastVertexBuffer = vertexBuffer.buffer;
-
-            SDL.BindGPUVertexBuffers(renderPass, 0, vertexBinding, 1);
-        }
+        SDL.BindGPUVertexBuffers(renderPass, 0, vertexBinding, 1);
 
-        if (SDLGPURendererBackend.lastIndexBuffer != indexBuffer.buffer)
-        {
-            SDLGPURendererBackend.lastIndexBuffer = indexBuffer.buffer;
-
-            SDL.BindGPUIndexBuffer(renderPass, in indexBinding, index.Is32Bit ?
-                SDL.GPUIndexElementSize.IndexElementSize32Bit :
-                SDL.GPUIndexElementSize.IndexElementSize16Bit);
-        }
+        SDL.BindGPUIndexBuffer(renderPass, in indexBinding, index.Is32Bit ?
+            SDL.GPUIndexElementSize.IndexElementSize32Bit :
+            SDL.GPUIndexElementSize.IndexElementSize16Bit);
 
         if (vertexSamplers != null)
         {

Engine/Staple.Core/Rendering/RenderSystem/Backend/Impls/SDLGPU/Commands/SDLGPURenderTransientCommand.cs

@@ -103,19 +103,9 @@ binding.buffer is not SDLGPUVertexBuffer v ||
 
         indexBinding.Buffer = entry.indexBuffer;
 
-        if (SDLGPURendererBackend.lastVertexBuffer != entry.vertexBuffer)
-        {
-            SDLGPURendererBackend.lastVertexBuffer = entry.vertexBuffer;
-
-            SDL.BindGPUVertexBuffers(renderPass, 0, vertexBinding, 1);
-        }
+        SDL.BindGPUVertexBuffers(renderPass, 0, vertexBinding, 1);
 
-        if (SDLGPURendererBackend.lastIndexBuffer != entry.indexBuffer)
-        {
-            SDLGPURendererBackend.lastIndexBuffer = entry.indexBuffer;
-
-            SDL.BindGPUIndexBuffer(renderPass, in indexBinding, SDL.GPUIndexElementSize.IndexElementSize16Bit);
-        }
+        SDL.BindGPUIndexBuffer(renderPass, in indexBinding, SDL.GPUIndexElementSize.IndexElementSize16Bit);
 
         if (vertexSamplers != null)
         {

Engine/Staple.Core/Rendering/RenderSystem/Backend/Impls/SDLGPU/Commands/SDLGPURenderTransientUIntCommand.cs

@@ -103,19 +103,9 @@ binding.buffer is not SDLGPUVertexBuffer v ||
 
         indexBinding.Buffer = entry.indexBuffer;
 
-        if (SDLGPURendererBackend.lastVertexBuffer != entry.vertexBuffer)
-        {
-            SDLGPURendererBackend.lastVertexBuffer = entry.vertexBuffer;
-
-            SDL.BindGPUVertexBuffers(renderPass, 0, vertexBinding, 1);
-        }
+        SDL.BindGPUVertexBuffers(renderPass, 0, vertexBinding, 1);
 
-        if (SDLGPURendererBackend.lastIndexBuffer != entry.indexBuffer)
-        {
-            SDLGPURendererBackend.lastIndexBuffer = entry.indexBuffer;
-
-            SDL.BindGPUIndexBuffer(renderPass, in indexBinding, SDL.GPUIndexElementSize.IndexElementSize32Bit);
-        }
+        SDL.BindGPUIndexBuffer(renderPass, in indexBinding, SDL.GPUIndexElementSize.IndexElementSize32Bit);
 
         if (vertexSamplers != null)
         {

Engine/Staple.Core/Rendering/RenderSystem/Backend/Impls/SDLGPU/SDLGPURendererBackend.cs

@@ -497,8 +497,6 @@ public void Clear()
     #endregion
 
     #region Command Support Fields
-    internal static nint lastVertexBuffer;
-    internal static nint lastIndexBuffer;
     internal static nint lastGraphicsPipeline;
     internal static nint lastQueuedGraphicsPipeline;
     internal static nint[] singleBuffer = new nint[1];
@@ -852,8 +850,6 @@ public void EndFrame()
         commands.Clear();
         frameAllocator.Clear();
 
-        lastVertexBuffer = nint.Zero;
-        lastIndexBuffer = nint.Zero;
         lastGraphicsPipeline = nint.Zero;
         lastQueuedGraphicsPipeline = nint.Zero;
 
@@ -1028,8 +1024,6 @@ public void FinishPasses()
 
             renderPass = nint.Zero;
             lastGraphicsPipeline = nint.Zero;
-            lastVertexBuffer = nint.Zero;
-            lastIndexBuffer = nint.Zero;
             lastQueuedGraphicsPipeline = nint.Zero;
         }
     }