New shader translator implementation (#654)

* Start implementing a new shader translator * Fix shift instructions and a typo * Small refactoring on StructuredProgram, move RemovePhis method to a separate class * Initial geometry shader support * Implement TLD4 * Fix -- There's no negation on FMUL32I * Add constant folding and algebraic simplification optimizations, nits * Some leftovers from constant folding * Avoid cast for constant assignments * Add a branch elimination pass, and misc small fixes * Remove redundant branches, add expression propagation and other improvements on the code * Small leftovers -- add missing break and continue, remove unused properties, other improvements * Add null check to handle empty block cases on block visitor * Add HADD2 and HMUL2 half float shader instructions * Optimize pack/unpack sequences, some fixes related to half float instructions * Add TXQ, TLD, TLDS and TLD4S shader texture instructions, and some support for bindless textures, some refactoring on codegen * Fix copy paste mistake that caused RZ to be ignored on the AST instruction * Add workaround for conditional exit, and fix half float instruction with constant buffer * Add missing 0.0 source for TLDS.LZ variants * Simplify the switch for TLDS.LZ * Texture instructions related fixes * Implement the HFMA instruction, and some misc. fixes * Enable constant folding on UnpackHalf2x16 instructions * Refactor HFMA to use OpCode* for opcode decoding rather than on the helper methods * Remove the old shader translator * Remove ShaderDeclInfo and other unused things * Add dual vertex shader support * Add ShaderConfig, used to pass shader type and maximum cbuffer size * Move and rename some instruction enums * Move texture instructions into a separate file * Move operand GetExpression and locals management to OperandManager * Optimize opcode decoding using a simple list and binary search * Add missing condition for do-while on goto elimination * Misc. fixes on texture instructions * Simplify TLDS switch * Address PR feedback, and a nit
2019-04-17 20:57:08 -03:00 · 2019-04-17 20:57:08 -03:00 · 6b23a2c125
commit 6b23a2c125
parent b2e88b04a8
207 changed files with 11514 additions and 6311 deletions
--- a/Ryujinx.Graphics/Shader/CodeGen/Glsl/CodeGenContext.cs
+++ b/Ryujinx.Graphics/Shader/CodeGen/Glsl/CodeGenContext.cs
@ -0,0 +1,90 @@
+using System.Collections.Generic;
+using System.Text;
+
+namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
+{
+    class CodeGenContext
+    {
+        private const string Tab = "    ";
+
+        public ShaderConfig Config { get; }
+
+        public List<CBufferDescriptor> CBufferDescriptors { get; }
+        public List<TextureDescriptor> TextureDescriptors { get; }
+
+        public OperandManager OperandManager { get; }
+
+        private StringBuilder _sb;
+
+        private int _level;
+
+        private string _identation;
+
+        public CodeGenContext(ShaderConfig config)
+        {
+            Config = config;
+
+            CBufferDescriptors = new List<CBufferDescriptor>();
+            TextureDescriptors = new List<TextureDescriptor>();
+
+            OperandManager = new OperandManager();
+
+            _sb = new StringBuilder();
+        }
+
+        public void AppendLine()
+        {
+            _sb.AppendLine();
+        }
+
+        public void AppendLine(string str)
+        {
+            _sb.AppendLine(_identation + str);
+        }
+
+        public string GetCode()
+        {
+            return _sb.ToString();
+        }
+
+        public void EnterScope()
+        {
+            AppendLine("{");
+
+            _level++;
+
+            UpdateIdentation();
+        }
+
+        public void LeaveScope(string suffix = "")
+        {
+            if (_level == 0)
+            {
+                return;
+            }
+
+            _level--;
+
+            UpdateIdentation();
+
+            AppendLine("}" + suffix);
+        }
+
+        private void UpdateIdentation()
+        {
+            _identation = GetIdentation(_level);
+        }
+
+        private static string GetIdentation(int level)
+        {
+            string identation = string.Empty;
+
+            for (int index = 0; index < level; index++)
+            {
+                identation += Tab;
+            }
+
+            return identation;
+        }
+    }
+}