Use a new approach for shader BRX targets (#2532)

* Use a new approach for shader BRX targets

* Make shader cache actually work

* Improve the shader pattern matching a bit

* Extend LDC search to predecessor blocks, catches more cases

* Nit

* Only save the amount of constant buffer data actually used. Avoids crashes on partially mapped buffers

* Ignore Rd on predicate instructions, as they do not have a Rd register (catches more cases)

1 files changed, 6 insertions, 4 deletions

diff --git a/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestShaderCacheEntryHeader.cs b/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestShaderCacheEntryHeader.cs
index 6d5bb28d..9b22cac5 100644
--- a/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestShaderCacheEntryHeader.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/Cache/Definition/GuestShaderCacheEntryHeader.cs
@@ -40,9 +40,9 @@ namespace Ryujinx.Graphics.Gpu.Shader.Cache.Definition
         public int SizeA;
 
         /// <summary>
-        /// Unused/reserved.
+        /// Constant buffer 1 data size.
         /// </summary>
-        public int Reserved4;
+        public int Cb1DataSize;
 
         /// <summary>
         /// The header of the cached gpu accessor.
@@ -55,12 +55,14 @@ namespace Ryujinx.Graphics.Gpu.Shader.Cache.Definition
         /// <param name="stage">The stage of this shader</param>
         /// <param name="size">The size of the code section</param>
         /// <param name="sizeA">The size of the code2 section if present (Vertex A)</param>
+        /// <param name="cb1DataSize">Constant buffer 1 data size</param>
         /// <param name="gpuAccessorHeader">The header of the cached gpu accessor</param>
-        public GuestShaderCacheEntryHeader(ShaderStage stage, int size, int sizeA, GuestGpuAccessorHeader gpuAccessorHeader) : this()
+        public GuestShaderCacheEntryHeader(ShaderStage stage, int size, int sizeA, int cb1DataSize, GuestGpuAccessorHeader gpuAccessorHeader) : this()
         {
             Stage = stage;
-            Size  = size;
+            Size = size;
             SizeA = sizeA;
+            Cb1DataSize = cb1DataSize;
             GpuAccessorHeader = gpuAccessorHeader;
         }
     }