forked from Mirror/Ryujinx
731 lines
No EOL
30 KiB
C#
731 lines
No EOL
30 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Graphics.Shader.StructuredIr;
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using Ryujinx.Graphics.Shader.Translation;
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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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using System.Numerics;
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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(context.Config.Options.TargetApi == TargetApi.Vulkan ? "#version 460 core" : "#version 450 core");
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context.AppendLine("#extension GL_ARB_gpu_shader_int64 : enable");
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if (context.Config.GpuAccessor.QueryHostSupportsShaderBallot())
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{
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context.AppendLine("#extension GL_ARB_shader_ballot : enable");
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}
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else
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{
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context.AppendLine("#extension GL_KHR_shader_subgroup_basic : enable");
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context.AppendLine("#extension GL_KHR_shader_subgroup_ballot : enable");
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}
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context.AppendLine("#extension GL_ARB_shader_group_vote : enable");
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context.AppendLine("#extension GL_EXT_shader_image_load_formatted : enable");
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context.AppendLine("#extension GL_EXT_texture_shadow_lod : enable");
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if (context.Config.Stage == ShaderStage.Compute)
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{
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context.AppendLine("#extension GL_ARB_compute_shader : enable");
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}
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else if (context.Config.Stage == ShaderStage.Fragment)
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{
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if (context.Config.GpuAccessor.QueryHostSupportsFragmentShaderInterlock())
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{
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context.AppendLine("#extension GL_ARB_fragment_shader_interlock : enable");
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}
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else if (context.Config.GpuAccessor.QueryHostSupportsFragmentShaderOrderingIntel())
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{
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context.AppendLine("#extension GL_INTEL_fragment_shader_ordering : enable");
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}
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}
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else
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{
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if (context.Config.Stage == ShaderStage.Vertex)
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{
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context.AppendLine("#extension GL_ARB_shader_draw_parameters : enable");
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}
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context.AppendLine("#extension GL_ARB_shader_viewport_layer_array : enable");
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}
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if (context.Config.GpPassthrough && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
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{
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context.AppendLine("#extension GL_NV_geometry_shader_passthrough : enable");
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}
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context.AppendLine("#pragma optionNV(fastmath off)");
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context.AppendLine();
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context.AppendLine($"const int {DefaultNames.UndefinedName} = 0;");
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context.AppendLine();
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if (context.Config.Stage == ShaderStage.Compute)
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{
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int localMemorySize = BitUtils.DivRoundUp(context.Config.GpuAccessor.QueryComputeLocalMemorySize(), 4);
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if (localMemorySize != 0)
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{
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string localMemorySizeStr = NumberFormatter.FormatInt(localMemorySize);
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context.AppendLine($"uint {DefaultNames.LocalMemoryName}[{localMemorySizeStr}];");
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context.AppendLine();
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}
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int sharedMemorySize = BitUtils.DivRoundUp(context.Config.GpuAccessor.QueryComputeSharedMemorySize(), 4);
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if (sharedMemorySize != 0)
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{
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string sharedMemorySizeStr = NumberFormatter.FormatInt(sharedMemorySize);
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context.AppendLine($"shared uint {DefaultNames.SharedMemoryName}[{sharedMemorySizeStr}];");
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context.AppendLine();
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}
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}
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else if (context.Config.LocalMemorySize != 0)
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{
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int localMemorySize = BitUtils.DivRoundUp(context.Config.LocalMemorySize, 4);
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string localMemorySizeStr = NumberFormatter.FormatInt(localMemorySize);
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context.AppendLine($"uint {DefaultNames.LocalMemoryName}[{localMemorySizeStr}];");
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context.AppendLine();
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}
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var cBufferDescriptors = context.Config.GetConstantBufferDescriptors();
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if (cBufferDescriptors.Length != 0)
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{
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DeclareUniforms(context, cBufferDescriptors);
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context.AppendLine();
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}
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var sBufferDescriptors = context.Config.GetStorageBufferDescriptors();
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if (sBufferDescriptors.Length != 0)
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{
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DeclareStorages(context, sBufferDescriptors);
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context.AppendLine();
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}
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var textureDescriptors = context.Config.GetTextureDescriptors();
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if (textureDescriptors.Length != 0)
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{
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DeclareSamplers(context, textureDescriptors);
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context.AppendLine();
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}
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var imageDescriptors = context.Config.GetImageDescriptors();
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if (imageDescriptors.Length != 0)
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{
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DeclareImages(context, imageDescriptors);
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context.AppendLine();
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}
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if (context.Config.Stage != ShaderStage.Compute)
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{
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if (context.Config.Stage == ShaderStage.Geometry)
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{
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InputTopology inputTopology = context.Config.GpuAccessor.QueryPrimitiveTopology();
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string inPrimitive = inputTopology.ToGlslString();
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context.AppendLine($"layout (invocations = {context.Config.ThreadsPerInputPrimitive}, {inPrimitive}) in;");
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if (context.Config.GpPassthrough && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
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{
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context.AppendLine($"layout (passthrough) in gl_PerVertex");
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context.EnterScope();
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context.AppendLine("vec4 gl_Position;");
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context.AppendLine("float gl_PointSize;");
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context.AppendLine("float gl_ClipDistance[];");
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context.LeaveScope(";");
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}
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else
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{
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string outPrimitive = context.Config.OutputTopology.ToGlslString();
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int maxOutputVertices = context.Config.GpPassthrough
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? inputTopology.ToInputVertices()
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: context.Config.MaxOutputVertices;
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context.AppendLine($"layout ({outPrimitive}, max_vertices = {maxOutputVertices}) out;");
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}
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context.AppendLine();
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}
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else if (context.Config.Stage == ShaderStage.TessellationControl)
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{
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int threadsPerInputPrimitive = context.Config.ThreadsPerInputPrimitive;
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context.AppendLine($"layout (vertices = {threadsPerInputPrimitive}) out;");
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context.AppendLine();
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}
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else if (context.Config.Stage == ShaderStage.TessellationEvaluation)
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{
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bool tessCw = context.Config.GpuAccessor.QueryTessCw();
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if (context.Config.Options.TargetApi == TargetApi.Vulkan)
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{
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// We invert the front face on Vulkan backend, so we need to do that here aswell.
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tessCw = !tessCw;
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}
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string patchType = context.Config.GpuAccessor.QueryTessPatchType().ToGlsl();
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string spacing = context.Config.GpuAccessor.QueryTessSpacing().ToGlsl();
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string windingOrder = tessCw ? "cw" : "ccw";
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context.AppendLine($"layout ({patchType}, {spacing}, {windingOrder}) in;");
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context.AppendLine();
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}
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if (context.Config.UsedInputAttributes != 0 || context.Config.GpPassthrough)
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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 (context.Config.UsedOutputAttributes != 0 || context.Config.Stage != ShaderStage.Fragment)
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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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if (context.Config.UsedInputAttributesPerPatch.Count != 0)
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{
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DeclareInputAttributesPerPatch(context, context.Config.UsedInputAttributesPerPatch);
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context.AppendLine();
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}
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if (context.Config.UsedOutputAttributesPerPatch.Count != 0)
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{
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DeclareUsedOutputAttributesPerPatch(context, context.Config.UsedOutputAttributesPerPatch);
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context.AppendLine();
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}
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if (context.Config.TransformFeedbackEnabled && context.Config.LastInVertexPipeline)
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{
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var tfOutput = context.Info.GetTransformFeedbackOutput(AttributeConsts.PositionX);
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if (tfOutput.Valid)
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{
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context.AppendLine($"layout (xfb_buffer = {tfOutput.Buffer}, xfb_offset = {tfOutput.Offset}, xfb_stride = {tfOutput.Stride}) out gl_PerVertex");
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context.EnterScope();
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context.AppendLine("vec4 gl_Position;");
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context.LeaveScope(context.Config.Stage == ShaderStage.TessellationControl ? " gl_out[];" : ";");
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}
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}
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}
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else
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{
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string localSizeX = NumberFormatter.FormatInt(context.Config.GpuAccessor.QueryComputeLocalSizeX());
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string localSizeY = NumberFormatter.FormatInt(context.Config.GpuAccessor.QueryComputeLocalSizeY());
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string localSizeZ = NumberFormatter.FormatInt(context.Config.GpuAccessor.QueryComputeLocalSizeZ());
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context.AppendLine(
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"layout (" +
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$"local_size_x = {localSizeX}, " +
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$"local_size_y = {localSizeY}, " +
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$"local_size_z = {localSizeZ}) in;");
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context.AppendLine();
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}
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bool isFragment = context.Config.Stage == ShaderStage.Fragment;
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if (isFragment || context.Config.Stage == ShaderStage.Compute || context.Config.Stage == ShaderStage.Vertex)
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{
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if (isFragment && context.Config.GpuAccessor.QueryEarlyZForce())
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{
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context.AppendLine("layout(early_fragment_tests) in;");
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context.AppendLine();
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}
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if ((context.Config.UsedFeatures & (FeatureFlags.FragCoordXY | FeatureFlags.IntegerSampling)) != 0)
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{
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string stage = OperandManager.GetShaderStagePrefix(context.Config.Stage);
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int scaleElements = context.Config.GetTextureDescriptors().Length + context.Config.GetImageDescriptors().Length;
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if (isFragment)
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{
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scaleElements++; // Also includes render target scale, for gl_FragCoord.
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}
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DeclareSupportUniformBlock(context, context.Config.Stage, scaleElements);
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if (context.Config.UsedFeatures.HasFlag(FeatureFlags.IntegerSampling) && scaleElements != 0)
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{
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AppendHelperFunction(context, $"Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/TexelFetchScale_{stage}.glsl");
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context.AppendLine();
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}
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}
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else if (isFragment || context.Config.Stage == ShaderStage.Vertex)
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{
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DeclareSupportUniformBlock(context, context.Config.Stage, 0);
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}
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.AtomicMinMaxS32Shared) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/AtomicMinMaxS32Shared.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.AtomicMinMaxS32Storage) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/AtomicMinMaxS32Storage.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.MultiplyHighS32) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/MultiplyHighS32.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.MultiplyHighU32) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/MultiplyHighU32.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.Shuffle) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/Shuffle.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.ShuffleDown) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleDown.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.ShuffleUp) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleUp.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.ShuffleXor) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleXor.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.StoreSharedSmallInt) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/StoreSharedSmallInt.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.StoreStorageSmallInt) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/StoreStorageSmallInt.glsl");
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}
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if ((info.HelperFunctionsMask & HelperFunctionsMask.SwizzleAdd) != 0)
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{
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AppendHelperFunction(context, "Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/SwizzleAdd.glsl");
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}
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}
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private static string GetTfLayout(TransformFeedbackOutput tfOutput)
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{
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if (tfOutput.Valid)
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{
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return $"layout (xfb_buffer = {tfOutput.Buffer}, xfb_offset = {tfOutput.Offset}, xfb_stride = {tfOutput.Stride}) ";
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}
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return string.Empty;
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}
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public static void DeclareLocals(CodeGenContext context, StructuredFunction function)
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{
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foreach (AstOperand decl in function.Locals)
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{
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string name = context.OperandManager.DeclareLocal(decl);
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context.AppendLine(GetVarTypeName(decl.VarType) + " " + name + ";");
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}
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}
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public static string GetVarTypeName(VariableType type)
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{
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switch (type)
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{
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case VariableType.Bool: return "bool";
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case VariableType.F32: return "precise float";
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case VariableType.F64: return "double";
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case VariableType.None: return "void";
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case VariableType.S32: return "int";
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case VariableType.U32: return "uint";
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}
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throw new ArgumentException($"Invalid variable type \"{type}\".");
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}
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private static void DeclareUniforms(CodeGenContext context, BufferDescriptor[] descriptors)
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{
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string ubSize = "[" + NumberFormatter.FormatInt(Constants.ConstantBufferSize / 16) + "]";
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if (context.Config.UsedFeatures.HasFlag(FeatureFlags.CbIndexing))
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{
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string ubName = OperandManager.GetShaderStagePrefix(context.Config.Stage);
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ubName += "_" + DefaultNames.UniformNamePrefix;
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string blockName = $"{ubName}_{DefaultNames.BlockSuffix}";
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context.AppendLine($"layout (binding = {context.Config.FirstConstantBufferBinding}, std140) uniform {blockName}");
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context.EnterScope();
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context.AppendLine("vec4 " + DefaultNames.DataName + ubSize + ";");
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context.LeaveScope($" {ubName}[{NumberFormatter.FormatInt(descriptors.Max(x => x.Slot) + 1)}];");
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}
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else
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{
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foreach (var descriptor in descriptors)
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{
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string ubName = OperandManager.GetShaderStagePrefix(context.Config.Stage);
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ubName += "_" + DefaultNames.UniformNamePrefix + descriptor.Slot;
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context.AppendLine($"layout (binding = {descriptor.Binding}, std140) uniform {ubName}");
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context.EnterScope();
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context.AppendLine("vec4 " + OperandManager.GetUbName(context.Config.Stage, descriptor.Slot, false) + ubSize + ";");
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context.LeaveScope(";");
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}
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}
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}
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private static void DeclareStorages(CodeGenContext context, BufferDescriptor[] descriptors)
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{
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string sbName = OperandManager.GetShaderStagePrefix(context.Config.Stage);
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sbName += "_" + DefaultNames.StorageNamePrefix;
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string blockName = $"{sbName}_{DefaultNames.BlockSuffix}";
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string layout = context.Config.Options.TargetApi == TargetApi.Vulkan ? ", set = 1" : string.Empty;
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context.AppendLine($"layout (binding = {context.Config.FirstStorageBufferBinding}{layout}, std430) buffer {blockName}");
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context.EnterScope();
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context.AppendLine("uint " + DefaultNames.DataName + "[];");
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context.LeaveScope($" {sbName}[{NumberFormatter.FormatInt(descriptors.Max(x => x.Slot) + 1)}];");
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}
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private static void DeclareSamplers(CodeGenContext context, TextureDescriptor[] descriptors)
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{
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int arraySize = 0;
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foreach (var descriptor in descriptors)
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{
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if (descriptor.Type.HasFlag(SamplerType.Indexed))
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{
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if (arraySize == 0)
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{
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arraySize = ShaderConfig.SamplerArraySize;
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}
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else if (--arraySize != 0)
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{
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continue;
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}
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}
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string indexExpr = NumberFormatter.FormatInt(arraySize);
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string samplerName = OperandManager.GetSamplerName(
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context.Config.Stage,
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descriptor.CbufSlot,
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descriptor.HandleIndex,
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descriptor.Type.HasFlag(SamplerType.Indexed),
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indexExpr);
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string samplerTypeName = descriptor.Type.ToGlslSamplerType();
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string layout = string.Empty;
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if (context.Config.Options.TargetApi == TargetApi.Vulkan)
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{
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layout = ", set = 2";
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}
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context.AppendLine($"layout (binding = {descriptor.Binding}{layout}) uniform {samplerTypeName} {samplerName};");
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}
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}
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private static void DeclareImages(CodeGenContext context, TextureDescriptor[] descriptors)
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{
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int arraySize = 0;
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foreach (var descriptor in descriptors)
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{
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if (descriptor.Type.HasFlag(SamplerType.Indexed))
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{
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if (arraySize == 0)
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{
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arraySize = ShaderConfig.SamplerArraySize;
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}
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else if (--arraySize != 0)
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{
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continue;
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}
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}
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string indexExpr = NumberFormatter.FormatInt(arraySize);
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string imageName = OperandManager.GetImageName(
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context.Config.Stage,
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descriptor.CbufSlot,
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descriptor.HandleIndex,
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descriptor.Format,
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descriptor.Type.HasFlag(SamplerType.Indexed),
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indexExpr);
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string imageTypeName = descriptor.Type.ToGlslImageType(descriptor.Format.GetComponentType());
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if (descriptor.Flags.HasFlag(TextureUsageFlags.ImageCoherent))
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{
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imageTypeName = "coherent " + imageTypeName;
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}
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string layout = descriptor.Format.ToGlslFormat();
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if (!string.IsNullOrEmpty(layout))
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{
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layout = ", " + layout;
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}
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if (context.Config.Options.TargetApi == TargetApi.Vulkan)
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{
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layout = $", set = 3{layout}";
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}
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context.AppendLine($"layout (binding = {descriptor.Binding}{layout}) uniform {imageTypeName} {imageName};");
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}
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}
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private static void DeclareInputAttributes(CodeGenContext context, StructuredProgramInfo info)
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{
|
|
if (context.Config.UsedFeatures.HasFlag(FeatureFlags.IaIndexing))
|
|
{
|
|
string suffix = context.Config.Stage == ShaderStage.Geometry ? "[]" : string.Empty;
|
|
|
|
context.AppendLine($"layout (location = 0) in vec4 {DefaultNames.IAttributePrefix}{suffix}[{Constants.MaxAttributes}];");
|
|
}
|
|
else
|
|
{
|
|
int usedAttributes = context.Config.UsedInputAttributes | context.Config.PassthroughAttributes;
|
|
while (usedAttributes != 0)
|
|
{
|
|
int index = BitOperations.TrailingZeroCount(usedAttributes);
|
|
DeclareInputAttribute(context, info, index);
|
|
usedAttributes &= ~(1 << index);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void DeclareInputAttributesPerPatch(CodeGenContext context, HashSet<int> attrs)
|
|
{
|
|
foreach (int attr in attrs.Order())
|
|
{
|
|
DeclareInputAttributePerPatch(context, attr);
|
|
}
|
|
}
|
|
|
|
private static void DeclareInputAttribute(CodeGenContext context, StructuredProgramInfo info, int attr)
|
|
{
|
|
string suffix = AttributeInfo.IsArrayAttributeGlsl(context.Config.Stage, isOutAttr: false) ? "[]" : string.Empty;
|
|
string iq = string.Empty;
|
|
|
|
if (context.Config.Stage == ShaderStage.Fragment)
|
|
{
|
|
iq = context.Config.ImapTypes[attr].GetFirstUsedType() switch
|
|
{
|
|
PixelImap.Constant => "flat ",
|
|
PixelImap.ScreenLinear => "noperspective ",
|
|
_ => string.Empty
|
|
};
|
|
}
|
|
|
|
string name = $"{DefaultNames.IAttributePrefix}{attr}";
|
|
|
|
if (context.Config.TransformFeedbackEnabled && context.Config.Stage == ShaderStage.Fragment)
|
|
{
|
|
for (int c = 0; c < 4; c++)
|
|
{
|
|
char swzMask = "xyzw"[c];
|
|
|
|
context.AppendLine($"layout (location = {attr}, component = {c}) {iq}in float {name}_{swzMask}{suffix};");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bool passthrough = (context.Config.PassthroughAttributes & (1 << attr)) != 0;
|
|
string pass = passthrough && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough() ? "passthrough, " : string.Empty;
|
|
string type;
|
|
|
|
if (context.Config.Stage == ShaderStage.Vertex)
|
|
{
|
|
type = context.Config.GpuAccessor.QueryAttributeType(attr).ToVec4Type();
|
|
}
|
|
else
|
|
{
|
|
type = AttributeType.Float.ToVec4Type();
|
|
}
|
|
|
|
context.AppendLine($"layout ({pass}location = {attr}) {iq}in {type} {name}{suffix};");
|
|
}
|
|
}
|
|
|
|
private static void DeclareInputAttributePerPatch(CodeGenContext context, int attr)
|
|
{
|
|
int location = context.Config.GetPerPatchAttributeLocation(attr);
|
|
string name = $"{DefaultNames.PerPatchAttributePrefix}{attr}";
|
|
|
|
context.AppendLine($"layout (location = {location}) patch in vec4 {name};");
|
|
}
|
|
|
|
private static void DeclareOutputAttributes(CodeGenContext context, StructuredProgramInfo info)
|
|
{
|
|
if (context.Config.UsedFeatures.HasFlag(FeatureFlags.OaIndexing))
|
|
{
|
|
context.AppendLine($"layout (location = 0) out vec4 {DefaultNames.OAttributePrefix}[{Constants.MaxAttributes}];");
|
|
}
|
|
else
|
|
{
|
|
int usedAttributes = context.Config.UsedOutputAttributes;
|
|
while (usedAttributes != 0)
|
|
{
|
|
int index = BitOperations.TrailingZeroCount(usedAttributes);
|
|
DeclareOutputAttribute(context, index);
|
|
usedAttributes &= ~(1 << index);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void DeclareOutputAttribute(CodeGenContext context, int attr)
|
|
{
|
|
string suffix = AttributeInfo.IsArrayAttributeGlsl(context.Config.Stage, isOutAttr: true) ? "[]" : string.Empty;
|
|
string name = $"{DefaultNames.OAttributePrefix}{attr}{suffix}";
|
|
|
|
if (context.Config.TransformFeedbackEnabled && context.Config.LastInVertexPipeline)
|
|
{
|
|
int attrOffset = AttributeConsts.UserAttributeBase + attr * 16;
|
|
int components = context.Config.LastInPipeline ? context.Info.GetTransformFeedbackOutputComponents(attrOffset) : 1;
|
|
|
|
if (components > 1)
|
|
{
|
|
string type = components switch
|
|
{
|
|
2 => "vec2",
|
|
3 => "vec3",
|
|
4 => "vec4",
|
|
_ => "float"
|
|
};
|
|
|
|
string xfb = string.Empty;
|
|
|
|
var tfOutput = context.Info.GetTransformFeedbackOutput(attrOffset);
|
|
if (tfOutput.Valid)
|
|
{
|
|
xfb = $", xfb_buffer = {tfOutput.Buffer}, xfb_offset = {tfOutput.Offset}, xfb_stride = {tfOutput.Stride}";
|
|
}
|
|
|
|
context.AppendLine($"layout (location = {attr}{xfb}) out {type} {name};");
|
|
}
|
|
else
|
|
{
|
|
for (int c = 0; c < 4; c++)
|
|
{
|
|
char swzMask = "xyzw"[c];
|
|
|
|
string xfb = string.Empty;
|
|
|
|
var tfOutput = context.Info.GetTransformFeedbackOutput(attrOffset + c * 4);
|
|
if (tfOutput.Valid)
|
|
{
|
|
xfb = $", xfb_buffer = {tfOutput.Buffer}, xfb_offset = {tfOutput.Offset}, xfb_stride = {tfOutput.Stride}";
|
|
}
|
|
|
|
context.AppendLine($"layout (location = {attr}, component = {c}{xfb}) out float {name}_{swzMask};");
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
context.AppendLine($"layout (location = {attr}) out vec4 {name};");
|
|
}
|
|
}
|
|
|
|
private static void DeclareUsedOutputAttributesPerPatch(CodeGenContext context, HashSet<int> attrs)
|
|
{
|
|
foreach (int attr in attrs.Order())
|
|
{
|
|
DeclareOutputAttributePerPatch(context, attr);
|
|
}
|
|
}
|
|
|
|
private static void DeclareOutputAttributePerPatch(CodeGenContext context, int attr)
|
|
{
|
|
int location = context.Config.GetPerPatchAttributeLocation(attr);
|
|
string name = $"{DefaultNames.PerPatchAttributePrefix}{attr}";
|
|
|
|
context.AppendLine($"layout (location = {location}) patch out vec4 {name};");
|
|
}
|
|
|
|
private static void DeclareSupportUniformBlock(CodeGenContext context, ShaderStage stage, int scaleElements)
|
|
{
|
|
bool needsSupportBlock = stage == ShaderStage.Fragment ||
|
|
(context.Config.LastInVertexPipeline && context.Config.GpuAccessor.QueryViewportTransformDisable());
|
|
|
|
if (!needsSupportBlock && scaleElements == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
context.AppendLine($"layout (binding = 0, std140) uniform {DefaultNames.SupportBlockName}");
|
|
context.EnterScope();
|
|
|
|
switch (stage)
|
|
{
|
|
case ShaderStage.Fragment:
|
|
case ShaderStage.Vertex:
|
|
context.AppendLine($"uint {DefaultNames.SupportBlockAlphaTestName};");
|
|
context.AppendLine($"bool {DefaultNames.SupportBlockIsBgraName}[{SupportBuffer.FragmentIsBgraCount}];");
|
|
context.AppendLine($"vec4 {DefaultNames.SupportBlockViewportInverse};");
|
|
context.AppendLine($"int {DefaultNames.SupportBlockFragmentScaleCount};");
|
|
break;
|
|
case ShaderStage.Compute:
|
|
context.AppendLine($"uint s_reserved[{SupportBuffer.ComputeRenderScaleOffset / SupportBuffer.FieldSize}];");
|
|
break;
|
|
}
|
|
|
|
context.AppendLine($"float {DefaultNames.SupportBlockRenderScaleName}[{SupportBuffer.RenderScaleMaxCount}];");
|
|
|
|
context.LeaveScope(";");
|
|
context.AppendLine();
|
|
}
|
|
|
|
private static void AppendHelperFunction(CodeGenContext context, string filename)
|
|
{
|
|
string code = EmbeddedResources.ReadAllText(filename);
|
|
|
|
code = code.Replace("\t", CodeGenContext.Tab);
|
|
code = code.Replace("$SHARED_MEM$", DefaultNames.SharedMemoryName);
|
|
code = code.Replace("$STORAGE_MEM$", OperandManager.GetShaderStagePrefix(context.Config.Stage) + "_" + DefaultNames.StorageNamePrefix);
|
|
|
|
if (context.Config.GpuAccessor.QueryHostSupportsShaderBallot())
|
|
{
|
|
code = code.Replace("$SUBGROUP_INVOCATION$", "gl_SubGroupInvocationARB");
|
|
code = code.Replace("$SUBGROUP_BROADCAST$", "readInvocationARB");
|
|
}
|
|
else
|
|
{
|
|
code = code.Replace("$SUBGROUP_INVOCATION$", "gl_SubgroupInvocationID");
|
|
code = code.Replace("$SUBGROUP_BROADCAST$", "subgroupBroadcast");
|
|
}
|
|
|
|
context.AppendLine(code);
|
|
context.AppendLine();
|
|
}
|
|
}
|
|
} |