Implement clear buffer (fast path) (#1902)

* Implement clear buffer (fast path) * Remove blank line
2021-01-12 18:50:54 -03:00 · 2021-01-12 18:50:54 -03:00 · df820a72de
commit df820a72de
parent 68f6b79fd3
8 changed files with 125 additions and 5 deletions
--- a/Ryujinx.Graphics.OpenGL/Buffer.cs
+++ b/Ryujinx.Graphics.OpenGL/Buffer.cs
@ -6,6 +6,27 @@ namespace Ryujinx.Graphics.OpenGL
 {
    static class Buffer
    {
+        public static void Clear(BufferHandle destination, int offset, int size, uint value)
+        {
+            GL.BindBuffer(BufferTarget.CopyWriteBuffer, destination.ToInt32());
+
+            unsafe
+            {
+                uint* valueArr = stackalloc uint[1];
+
+                valueArr[0] = value;
+
+                GL.ClearBufferSubData(
+                    BufferTarget.CopyWriteBuffer,
+                    PixelInternalFormat.Rgba8ui,
+                    (IntPtr)offset,
+                    (IntPtr)size,
+                    PixelFormat.RgbaInteger,
+                    PixelType.UnsignedByte,
+                    (IntPtr)valueArr);
+            }
+        }
+
        public static BufferHandle Create()
        {
            return Handle.FromInt32<BufferHandle>(GL.GenBuffer());