mirror of
https://github.com/GreemDev/Ryujinx.git
synced 2024-12-25 02:05:47 +00:00
6b23a2c125
* 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
206 lines
No EOL
6.5 KiB
C#
206 lines
No EOL
6.5 KiB
C#
using Ryujinx.Graphics.Gal;
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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.StructuredIr;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
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{
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static class Declarations
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{
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public static void Declare(CodeGenContext context, StructuredProgramInfo info)
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{
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context.AppendLine("#version 420 core");
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context.AppendLine();
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context.AppendLine($"const int {DefaultNames.UndefinedName} = 0;");
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context.AppendLine();
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if (context.Config.Type == GalShaderType.Geometry)
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{
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context.AppendLine("layout (points) in;");
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context.AppendLine("layout (triangle_strip, max_vertices = 4) out;");
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context.AppendLine();
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}
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context.AppendLine("layout (std140) uniform Extra");
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context.EnterScope();
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context.AppendLine("vec2 flip;");
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context.AppendLine("int instance;");
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context.LeaveScope(";");
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context.AppendLine();
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if (info.CBuffers.Count != 0)
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{
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DeclareUniforms(context, info);
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context.AppendLine();
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}
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if (info.Samplers.Count != 0)
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{
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DeclareSamplers(context, info);
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context.AppendLine();
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}
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if (info.IAttributes.Count != 0)
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{
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DeclareInputAttributes(context, info);
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context.AppendLine();
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}
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if (info.OAttributes.Count != 0)
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{
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DeclareOutputAttributes(context, info);
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context.AppendLine();
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}
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}
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public static void DeclareLocals(CodeGenContext context, StructuredProgramInfo info)
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{
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foreach (AstOperand decl in info.Locals)
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{
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string name = context.OperandManager.DeclareLocal(decl);
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context.AppendLine(GetVarTypeName(decl.VarType) + " " + name + ";");
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}
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}
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private static string GetVarTypeName(VariableType type)
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{
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switch (type)
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{
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case VariableType.Bool: return "bool";
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case VariableType.F32: return "float";
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case VariableType.S32: return "int";
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case VariableType.U32: return "uint";
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}
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throw new ArgumentException($"Invalid variable type \"{type}\".");
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}
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private static void DeclareUniforms(CodeGenContext context, StructuredProgramInfo info)
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{
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foreach (int cbufSlot in info.CBuffers.OrderBy(x => x))
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{
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string ubName = OperandManager.GetShaderStagePrefix(context.Config.Type);
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ubName += "_" + DefaultNames.UniformNamePrefix + cbufSlot;
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context.CBufferDescriptors.Add(new CBufferDescriptor(ubName, cbufSlot));
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context.AppendLine("layout (std140) uniform " + ubName);
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context.EnterScope();
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string ubSize = "[" + NumberFormatter.FormatInt(context.Config.MaxCBufferSize / 16) + "]";
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context.AppendLine("vec4 " + OperandManager.GetUbName(context.Config.Type, cbufSlot) + ubSize + ";");
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context.LeaveScope(";");
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}
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}
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private static void DeclareSamplers(CodeGenContext context, StructuredProgramInfo info)
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{
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Dictionary<string, AstTextureOperation> samplers = new Dictionary<string, AstTextureOperation>();
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foreach (AstTextureOperation texOp in info.Samplers.OrderBy(x => x.Handle))
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{
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string samplerName = OperandManager.GetSamplerName(context.Config.Type, texOp);
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if (!samplers.TryAdd(samplerName, texOp))
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{
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continue;
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}
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string samplerTypeName = GetSamplerTypeName(texOp.Type);
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context.AppendLine("uniform " + samplerTypeName + " " + samplerName + ";");
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}
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foreach (KeyValuePair<string, AstTextureOperation> kv in samplers)
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{
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string samplerName = kv.Key;
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AstTextureOperation texOp = kv.Value;
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TextureDescriptor desc;
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if ((texOp.Flags & TextureFlags.Bindless) != 0)
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{
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AstOperand operand = texOp.GetSource(0) as AstOperand;
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desc = new TextureDescriptor(samplerName, operand.CbufSlot, operand.CbufOffset);
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}
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else
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{
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desc = new TextureDescriptor(samplerName, texOp.Handle);
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}
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context.TextureDescriptors.Add(desc);
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}
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}
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private static void DeclareInputAttributes(CodeGenContext context, StructuredProgramInfo info)
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{
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string suffix = context.Config.Type == GalShaderType.Geometry ? "[]" : string.Empty;
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foreach (int attr in info.IAttributes.OrderBy(x => x))
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{
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context.AppendLine($"layout (location = {attr}) in vec4 {DefaultNames.IAttributePrefix}{attr}{suffix};");
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}
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}
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private static void DeclareOutputAttributes(CodeGenContext context, StructuredProgramInfo info)
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{
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foreach (int attr in info.OAttributes.OrderBy(x => x))
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{
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context.AppendLine($"layout (location = {attr}) out vec4 {DefaultNames.OAttributePrefix}{attr};");
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}
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}
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private static string GetSamplerTypeName(TextureType type)
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{
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string typeName;
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switch (type & TextureType.Mask)
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{
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case TextureType.Texture1D: typeName = "sampler1D"; break;
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case TextureType.Texture2D: typeName = "sampler2D"; break;
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case TextureType.Texture3D: typeName = "sampler3D"; break;
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case TextureType.TextureCube: typeName = "samplerCube"; break;
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default: throw new ArgumentException($"Invalid sampler type \"{type}\".");
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}
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if ((type & TextureType.Multisample) != 0)
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{
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typeName += "MS";
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}
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if ((type & TextureType.Array) != 0)
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{
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typeName += "Array";
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}
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if ((type & TextureType.Shadow) != 0)
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{
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typeName += "Shadow";
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}
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return typeName;
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}
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}
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} |