917 lines
37 KiB
C#
917 lines
37 KiB
C#
// -----------------------------------------------------------------------------
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// file="OpenGlGenerator"
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// Project: StgSharp
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// Copyright (c) Nitload.
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// SPDX-License-Identifier: MIT
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// -----------------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Numerics;
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using System.Text;
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using StgSharp.GenerateGL.Analysis;
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using StgSharp.GenerateGL.Registry;
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namespace StgSharp.GenerateGL.Generation
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{
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/// <summary>
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/// Produces the first in-memory desktop OpenGL binding files.
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/// </summary>
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internal static class OpenGlGenerator
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{
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private static readonly HashSet<string> _csharpKeywords = new HashSet<string>(
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new[]
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{
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"abstract", "as", "base", "bool", "break", "byte", "case", "catch",
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"char", "checked", "class", "const", "continue", "decimal", "default",
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"delegate", "do", "double", "else", "enum", "event", "explicit", "extern",
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"false", "finally", "fixed", "float", "for", "foreach", "goto", "if",
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"implicit", "in", "int", "interface", "internal", "is", "lock", "long",
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"namespace", "new", "null", "object", "operator", "out", "override",
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"params", "private", "protected", "public", "readonly", "ref", "return",
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"sbyte", "sealed", "short", "sizeof", "stackalloc", "static", "string",
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"struct", "switch", "this", "throw", "true", "try", "typeof", "uint",
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"ulong", "unchecked", "unsafe", "ushort", "using", "virtual", "void",
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"volatile", "while",
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},
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StringComparer.Ordinal);
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public static GeneratedFileSet Generate(
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GlRegistryProjection projection,
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GlGenerationTarget target = GlGenerationTarget.All
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)
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{
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ArgumentNullException.ThrowIfNull(projection);
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if (target == GlGenerationTarget.None || (target & ~GlGenerationTarget.All) != 0)
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{
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throw new ArgumentOutOfRangeException(nameof(target));
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}
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IReadOnlyList<ManagedEnumDefinition> enums = GlEnumProjector.Project(projection);
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GlEnumTypeMap enumTypeMap = new GlEnumTypeMap(enums);
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List<GeneratedFile> files = new List<GeneratedFile>();
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if ((target & GlGenerationTarget.Enum) != 0)
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{
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files.Add(new GeneratedFile("glconst.cs", GenerateConstants(projection.Enums)));
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files.Add(new GeneratedFile("GlEnums.g.cs", GenerateEnums(enums)));
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}
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if ((target & GlGenerationTarget.Api) != 0)
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{
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IReadOnlyList<GlCommandGroup> commandGroups = ReadCoreCommandGroups(projection);
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IReadOnlyList<GlCommandDefinition> commands = Array.AsReadOnly(
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commandGroups.SelectMany(value => value.Commands).ToArray());
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GlEquivalentTypeMapper typeMapper = new GlEquivalentTypeMapper(projection.Source);
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GlFunctionFamilyAnalysis familyAnalysis = GlFunctionFamilyAnalyzer.Analyze(projection);
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ManagedApiPlanner apiPlanner = new ManagedApiPlanner(
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typeMapper,
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familyAnalysis,
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enumTypeMap);
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IReadOnlyList<ManagedMethodDefinition> managedMethods = apiPlanner.Plan(commands);
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Dictionary<string, IReadOnlyList<ManagedMethodDefinition>> methodsByCommand =
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managedMethods.GroupBy(value => value.NativeCommand.Name, StringComparer.Ordinal)
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.ToDictionary(
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value => value.Key,
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value => (IReadOnlyList<ManagedMethodDefinition>)Array.AsReadOnly(
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value.ToArray()),
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StringComparer.Ordinal);
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List<ManagedCommandGroup> managedGroups = commandGroups.Select(
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group => new ManagedCommandGroup(
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group,
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Array.AsReadOnly(
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group.Commands.SelectMany(
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command => methodsByCommand.TryGetValue(
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command.Name,
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out IReadOnlyList<ManagedMethodDefinition>? methods)
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? methods
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: Array.Empty<ManagedMethodDefinition>())
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.ToArray()))).ToList();
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ManagedApiPlanner.Validate(
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managedGroups.SelectMany(value => value.Methods));
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files.Add(new GeneratedFile(
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"OpenglContext.g.cs",
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GenerateContext(commands, typeMapper)));
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files.Add(new GeneratedFile(
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"glContextShadow.g.cs",
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GenerateContextShadow(commands)));
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for (int index = 0; index < managedGroups.Count; index++)
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{
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ManagedCommandGroup managedGroup = managedGroups[index];
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GlCommandGroup group = managedGroup.Source;
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files.Add(
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new GeneratedFile(
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group.FileName,
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GenerateFunctions(
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managedGroup.Methods,
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group.FileName,
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group.Description,
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index == 0)));
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}
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}
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return new GeneratedFileSet(files);
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}
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private static ReadOnlyCollection<GlCommandGroup> ReadCoreCommandGroups(
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GlRegistryProjection projection
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)
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{
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List<GlCommandDefinition> foundation = new List<GlCommandDefinition>();
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Dictionary<string, List<GlCommandDefinition>> versionGroups = new Dictionary<string, List<GlCommandDefinition>>(
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StringComparer.Ordinal);
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List<string> versionOrder = new List<string>();
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foreach (GlCommandDefinition command in projection.Commands)
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{
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if (!projection.CommandIntroducedVersions.TryGetValue(
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command.Name,
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out string? version))
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{
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throw new InvalidDataException(
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$"Command '{command.Name}' has no introduction version.");
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}
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if (IsFoundationVersion(version))
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{
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foundation.Add(command);
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continue;
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}
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if (!versionGroups.TryGetValue(
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version,
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out List<GlCommandDefinition>? commands))
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{
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commands = new List<GlCommandDefinition>();
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versionGroups.Add(version, commands);
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versionOrder.Add(version);
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}
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commands.Add(command);
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}
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List<GlCommandGroup> groups = new List<GlCommandGroup>
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{
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new GlCommandGroup(
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"OpenGLFunction.Base.g.cs",
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"Desktop OpenGL forwarding methods introduced through 3.2 and retained by the target core profile",
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Array.AsReadOnly(foundation.ToArray())),
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};
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foreach (string version in versionOrder)
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{
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groups.Add(
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new GlCommandGroup(
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$"OpenGLFunction.v{version.Replace('.', '_')}.g.cs",
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$"Desktop OpenGL {version} core-profile forwarding methods",
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Array.AsReadOnly(versionGroups[version].ToArray())));
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}
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return Array.AsReadOnly(groups.ToArray());
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}
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private static bool IsFoundationVersion(
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string version
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)
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{
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string[] components = version.Split('.');
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if (components.Length != 2 ||
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!int.TryParse(
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components[0],
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NumberStyles.None,
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CultureInfo.InvariantCulture,
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out int major) ||
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!int.TryParse(
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components[1],
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NumberStyles.None,
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CultureInfo.InvariantCulture,
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out int minor))
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{
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throw new InvalidDataException(
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$"OpenGL feature version '{version}' is not a major.minor number.");
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}
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return major < 3 || major == 3 && minor <= 2;
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}
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private static string GenerateConstants(
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IReadOnlyList<GlEnumDefinition> enums
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)
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{
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StringBuilder builder = new StringBuilder(512 * 1024);
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AppendGeneratedHeader(builder, "glconst.cs", "Desktop OpenGL constants");
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builder.Append("namespace StgSharp.Graphics.OpenGL\n");
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builder.Append("{\n");
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builder.Append(" public static class glConst\n");
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builder.Append(" {\n\n");
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Dictionary<string, GlEnumDefinition> emitted = new Dictionary<string, GlEnumDefinition>(
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StringComparer.Ordinal);
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foreach (GlEnumDefinition value in enums)
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{
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if (value.Value is null)
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{
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continue;
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}
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if (emitted.TryGetValue(value.Name, out GlEnumDefinition? previous))
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{
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if (!string.Equals(previous.Value, value.Value, StringComparison.Ordinal))
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{
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throw new InvalidDataException(
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$"Desktop enum '{value.Name}' has conflicting values " +
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$"'{previous.Value}' and '{value.Value}'.");
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}
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continue;
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}
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emitted.Add(value.Name, value);
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ConstantExpression expression = ReadConstantExpression(value);
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builder.Append(" public const ");
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builder.Append(expression.Type);
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builder.Append(' ');
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builder.Append(ReadConstantName(value.Name));
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builder.Append(" = ");
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builder.Append(expression.Literal);
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builder.Append(";\n");
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}
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builder.Append("\n }\n");
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builder.Append("}\n");
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return builder.ToString();
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}
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private static string GenerateEnums(
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IReadOnlyList<ManagedEnumDefinition> enums
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)
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{
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StringBuilder builder = new StringBuilder(512 * 1024);
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AppendGeneratedHeader(
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builder,
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"GlEnums.g.cs",
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"Strongly typed desktop OpenGL enum groups");
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builder.Append("namespace StgSharp.Graphics.OpenGL\n");
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builder.Append("{\n");
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foreach (ManagedEnumDefinition value in enums)
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{
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builder.Append(" /// <summary>Native OpenGL group");
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builder.Append(value.NativeGroups.Count == 1 ? " " : "s ");
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builder.Append(string.Join(", ", value.NativeGroups));
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builder.Append(".</summary>\n");
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if (value.IsFlags)
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{
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builder.Append(" [System.Flags]\n");
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}
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builder.Append(" public enum ");
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builder.Append(value.Name);
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builder.Append(" : uint\n");
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builder.Append(" {\n");
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foreach (ManagedEnumMemberDefinition member in value.Members)
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{
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builder.Append(" ");
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builder.Append(member.Name);
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builder.Append(" = ");
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if (member.NativeValue.Name == "GL_NONE" &&
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member.NativeValue.Comment ==
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"Synthetic zero value for a generated flags enum.")
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{
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builder.Append("0u");
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}
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else
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{
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builder.Append("unchecked((uint)glConst.");
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builder.Append(ReadConstantName(member.NativeValue.Name));
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builder.Append(')');
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}
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builder.Append(",\n");
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}
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builder.Append(" }\n\n");
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}
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builder.Append("}\n");
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return builder.ToString();
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}
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private static ConstantExpression ReadConstantExpression(
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GlEnumDefinition value
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)
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{
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string source = value.Value!;
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bool isHex = source.StartsWith("0x", StringComparison.OrdinalIgnoreCase);
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BigInteger number = isHex
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? BigInteger.Parse(
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$"0{source[2..]}",
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NumberStyles.AllowHexSpecifier,
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CultureInfo.InvariantCulture)
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: BigInteger.Parse(source, NumberStyles.Integer, CultureInfo.InvariantCulture);
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if (string.Equals(value.TypeSuffix, "ull", StringComparison.OrdinalIgnoreCase))
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{
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EnsureRange(number, BigInteger.Zero, ulong.MaxValue, value);
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return new ConstantExpression("ulong", ReadLiteral(source, isHex, "UL"));
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}
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if (string.Equals(value.TypeSuffix, "u", StringComparison.OrdinalIgnoreCase))
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{
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EnsureRange(number, BigInteger.Zero, uint.MaxValue, value);
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return new ConstantExpression("uint", ReadLiteral(source, isHex, "u"));
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}
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if (number >= int.MinValue && number <= int.MaxValue)
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{
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return new ConstantExpression("int", source);
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}
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if (number >= BigInteger.Zero && number <= uint.MaxValue)
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{
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return new ConstantExpression("uint", ReadLiteral(source, isHex, "u"));
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}
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if (number >= long.MinValue && number <= long.MaxValue)
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{
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return new ConstantExpression("long", ReadLiteral(source, isHex, "L"));
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}
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if (number >= BigInteger.Zero && number <= ulong.MaxValue)
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{
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return new ConstantExpression("ulong", ReadLiteral(source, isHex, "UL"));
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}
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throw new InvalidDataException(
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$"Enum '{value.Name}' value '{source}' does not fit a C# integral type.");
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}
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private static void EnsureRange(
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BigInteger value,
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BigInteger minimum,
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BigInteger maximum,
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GlEnumDefinition definition
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)
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{
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if (value < minimum || value > maximum)
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{
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throw new InvalidDataException(
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$"Enum '{definition.Name}' value '{definition.Value}' is outside its " +
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"declared numeric suffix range.");
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}
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}
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private static string ReadLiteral(
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string source,
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bool isHex,
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string suffix
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)
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{
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return isHex ? $"{source}{suffix}" : $"{source}{suffix}";
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}
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private static string ReadConstantName(
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string name
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)
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{
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string value = name.StartsWith("GL_", StringComparison.Ordinal)
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? name[3..]
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: name;
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StringBuilder result = new StringBuilder(value.Length + 1);
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if (value.Length == 0 || char.IsDigit(value[0]))
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{
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result.Append('_');
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}
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foreach (char character in value)
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{
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result.Append(char.IsLetterOrDigit(character) || character == '_'
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? character
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: '_');
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}
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return result.ToString();
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}
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private static string GenerateContext(
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IReadOnlyList<GlCommandDefinition> commands,
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GlEquivalentTypeMapper typeMapper
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)
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{
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StringBuilder builder = new StringBuilder(128 * 1024);
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AppendGeneratedHeader(
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builder,
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"OpenglContext.g.cs",
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"Desktop OpenGL core function pointer table");
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builder.Append("namespace StgSharp.Graphics.OpenGL\n");
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builder.Append("{\n");
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builder.Append(" [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]\n");
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builder.Append(" public unsafe partial struct OpenglContext\n");
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builder.Append(" {\n");
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foreach (GlCommandDefinition command in OrderCommands(commands))
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{
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builder.Append(" internal delegate* unmanaged<");
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foreach (GlParameterDefinition parameter in command.Parameters)
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{
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builder.Append(typeMapper.ReadParameterType(parameter));
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builder.Append(", ");
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}
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builder.Append(typeMapper.ReadReturnType(command));
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builder.Append("> ");
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builder.Append(command.Name);
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builder.Append(";\n");
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}
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builder.Append(" }\n");
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builder.Append("}\n");
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return builder.ToString();
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}
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private static string GenerateContextShadow(
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IReadOnlyList<GlCommandDefinition> commands
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)
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{
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StringBuilder builder = new StringBuilder(64 * 1024);
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AppendGeneratedHeader(
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builder,
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"glContextShadow.g.cs",
|
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"Native-address shadow of the OpenGL function pointer table");
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builder.Append("namespace StgSharp.Graphics.OpenGL\n");
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builder.Append("{\n");
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builder.Append(" [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]\n");
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builder.Append(" internal struct glContextShadow\n");
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builder.Append(" {\n");
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foreach (GlCommandDefinition command in OrderCommands(commands))
|
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{
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builder.Append(" internal nint ");
|
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builder.Append(command.Name);
|
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builder.Append(";\n");
|
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}
|
|
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builder.Append(" }\n");
|
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builder.Append("}\n");
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return builder.ToString();
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}
|
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|
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private static IEnumerable<GlCommandDefinition> OrderCommands(
|
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IReadOnlyList<GlCommandDefinition> commands
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)
|
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{
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return commands.OrderBy(
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value => value.Name,
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StringComparer.Ordinal);
|
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}
|
|
|
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private static string GenerateFunctions(
|
|
IReadOnlyList<ManagedMethodDefinition> methods,
|
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string outputFileName,
|
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string description,
|
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bool includeContextState
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)
|
|
{
|
|
StringBuilder builder = new StringBuilder(512 * 1024);
|
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AppendGeneratedHeader(builder, outputFileName, description);
|
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builder.Append("using StgSharp.Mathematics.Numeric.Graphics;\n\n");
|
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builder.Append("using System;\n");
|
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builder.Append("using System.Runtime.CompilerServices;\n\n");
|
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builder.Append("namespace StgSharp.Graphics.OpenGL\n");
|
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builder.Append("{\n");
|
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builder.Append(" public unsafe partial class OpenGLFunction\n");
|
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builder.Append(" {\n");
|
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if (includeContextState)
|
|
{
|
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builder.Append("\n private readonly OpenglContext* __context;\n");
|
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builder.Append("\n internal OpenGLFunction(OpenglContext* context)\n");
|
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builder.Append(" {\n");
|
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builder.Append(" __context = context;\n");
|
|
builder.Append(" }\n");
|
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}
|
|
|
|
foreach (ManagedMethodDefinition method in methods)
|
|
{
|
|
AppendMethodDocumentation(builder, method);
|
|
builder.Append("\n [MethodImpl(MethodImplOptions.AggressiveInlining)]\n");
|
|
builder.Append(" public ");
|
|
builder.Append(method.ReturnType);
|
|
builder.Append(' ');
|
|
builder.Append(method.Name);
|
|
builder.Append('(');
|
|
for (int index = 0; index < method.Parameters.Count; index++)
|
|
{
|
|
if (index != 0)
|
|
{
|
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builder.Append(", ");
|
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}
|
|
|
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ManagedParameterDefinition parameter = method.Parameters[index];
|
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builder.Append(parameter.Type);
|
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builder.Append(' ');
|
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builder.Append(EscapeIdentifier(parameter.Name));
|
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}
|
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|
|
builder.Append(")\n");
|
|
builder.Append(" {\n");
|
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AppendInvocation(builder, method);
|
|
builder.Append(" }\n");
|
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}
|
|
|
|
builder.Append("\n }\n");
|
|
builder.Append("}\n");
|
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return builder.ToString();
|
|
}
|
|
|
|
private static void AppendMethodDocumentation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method
|
|
)
|
|
{
|
|
string declaration = ReadNativeDeclaration(method.NativeCommand);
|
|
string page = method.DocumentationPage ?? method.NativeCommand.Name;
|
|
builder.Append("\n /// <summary>\n");
|
|
builder.Append(" /// <para>Forwards to the native OpenGL entry point.</para>\n");
|
|
builder.Append(" /// <para><c>");
|
|
builder.Append(EscapeXml(declaration));
|
|
builder.Append("</c></para>\n");
|
|
builder.Append(" /// <para>See <see href=\"https://docs.gl/gl4/");
|
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builder.Append(page);
|
|
builder.Append("\">docs.gl</see>.</para>\n");
|
|
builder.Append(" /// </summary>");
|
|
}
|
|
|
|
private static string ReadNativeDeclaration(
|
|
GlCommandDefinition command
|
|
)
|
|
{
|
|
return $"{command.Return.DeclarationText}(" +
|
|
string.Join(", ", command.Parameters.Select(value => value.DeclarationText)) +
|
|
");";
|
|
}
|
|
|
|
private static string EscapeXml(
|
|
string value
|
|
)
|
|
{
|
|
return value.Replace("&", "&", StringComparison.Ordinal)
|
|
.Replace("<", "<", StringComparison.Ordinal)
|
|
.Replace(">", ">", StringComparison.Ordinal)
|
|
.Replace("\"", """, StringComparison.Ordinal)
|
|
.Replace("'", "'", StringComparison.Ordinal);
|
|
}
|
|
|
|
private static void AppendInvocation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method
|
|
)
|
|
{
|
|
switch (method.Invocation)
|
|
{
|
|
case DirectInvocation direct:
|
|
AppendDirectInvocation(builder, method, direct);
|
|
break;
|
|
case PinnedSpanInvocation pinned:
|
|
AppendPinnedSpanInvocation(builder, method, pinned);
|
|
break;
|
|
case PinnedVectorSpanInvocation pinnedVector:
|
|
AppendPinnedVectorSpanInvocation(builder, method, pinnedVector);
|
|
break;
|
|
case Matrix4Invocation matrix:
|
|
AppendMatrix4Invocation(builder, method, matrix);
|
|
break;
|
|
case QuerySpanInvocation query:
|
|
AppendQuerySpanInvocation(builder, method, query);
|
|
break;
|
|
default:
|
|
throw new InvalidOperationException(
|
|
$"Unsupported managed invocation '{method.Invocation.GetType().Name}'.");
|
|
}
|
|
}
|
|
|
|
private static void AppendQuerySpanInvocation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
QuerySpanInvocation invocation
|
|
)
|
|
{
|
|
ManagedParameterDefinition span = method.Parameters[invocation.SpanParameterIndex];
|
|
string spanName = EscapeIdentifier(span.Name);
|
|
builder.Append(" fixed (");
|
|
builder.Append(invocation.ElementType);
|
|
builder.Append("* __value = ");
|
|
builder.Append(spanName);
|
|
builder.Append(")\n");
|
|
builder.Append(" {\n");
|
|
builder.Append(" __context->");
|
|
builder.Append(method.NativeCommand.Name);
|
|
builder.Append('(');
|
|
AppendArguments(builder, method, invocation.PrefixArguments);
|
|
if (invocation.PrefixArguments.Count != 0)
|
|
{
|
|
builder.Append(", ");
|
|
}
|
|
|
|
builder.Append("__value);\n");
|
|
builder.Append(" }\n");
|
|
}
|
|
|
|
private static void AppendDirectInvocation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
DirectInvocation invocation
|
|
)
|
|
{
|
|
List<int> fixedParameters = new List<int>();
|
|
for (int index = 0; index < method.Parameters.Count; index++)
|
|
{
|
|
if (method.Parameters[index].IsHandleSpan)
|
|
{
|
|
fixedParameters.Add(index);
|
|
}
|
|
}
|
|
|
|
int indentation = 12;
|
|
foreach (int parameterIndex in fixedParameters)
|
|
{
|
|
ManagedParameterDefinition parameter = method.Parameters[parameterIndex];
|
|
builder.Append(' ', indentation);
|
|
builder.Append("fixed (GlHandle* __");
|
|
builder.Append(parameter.Name);
|
|
builder.Append(" = ");
|
|
builder.Append(EscapeIdentifier(parameter.Name));
|
|
builder.Append(")\n");
|
|
builder.Append(' ', indentation);
|
|
builder.Append("{\n");
|
|
indentation += 4;
|
|
}
|
|
|
|
builder.Append(' ', indentation);
|
|
if (method.WrapHandleReturn)
|
|
{
|
|
builder.Append("return GlHandle.Create(");
|
|
}
|
|
else if (method.IsEnumReturn)
|
|
{
|
|
builder.Append("return (");
|
|
builder.Append(method.ReturnType);
|
|
builder.Append(')');
|
|
}
|
|
else if (method.ReturnType != "void")
|
|
{
|
|
builder.Append("return ");
|
|
}
|
|
|
|
AppendNativeCall(builder, method, invocation.Arguments);
|
|
builder.Append(method.WrapHandleReturn ? ");\n" : ";\n");
|
|
for (int index = fixedParameters.Count - 1; index >= 0; index--)
|
|
{
|
|
indentation -= 4;
|
|
builder.Append(' ', indentation);
|
|
builder.Append("}\n");
|
|
}
|
|
}
|
|
|
|
private static void AppendPinnedSpanInvocation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
PinnedSpanInvocation invocation
|
|
)
|
|
{
|
|
ManagedParameterDefinition span = method.Parameters[invocation.SpanParameterIndex];
|
|
builder.Append(" fixed (");
|
|
builder.Append(invocation.ElementType);
|
|
builder.Append("* __value = ");
|
|
builder.Append(EscapeIdentifier(span.Name));
|
|
builder.Append(")\n");
|
|
builder.Append(" {\n");
|
|
builder.Append(" __context->");
|
|
builder.Append(method.NativeCommand.Name);
|
|
builder.Append('(');
|
|
AppendArguments(builder, method, invocation.PrefixArguments);
|
|
if (invocation.PrefixArguments.Count != 0)
|
|
{
|
|
builder.Append(", ");
|
|
}
|
|
|
|
builder.Append(EscapeIdentifier(span.Name));
|
|
builder.Append(".Length, __value);\n");
|
|
builder.Append(" }\n");
|
|
}
|
|
|
|
private static void AppendPinnedVectorSpanInvocation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
PinnedVectorSpanInvocation invocation
|
|
)
|
|
{
|
|
ManagedParameterDefinition span = method.Parameters[invocation.SpanParameterIndex];
|
|
string spanName = EscapeIdentifier(span.Name);
|
|
builder.Append(" fixed (");
|
|
builder.Append(invocation.VectorType);
|
|
builder.Append("* __vector = ");
|
|
builder.Append(spanName);
|
|
builder.Append(")\n");
|
|
builder.Append(" {\n");
|
|
builder.Append(" __context->");
|
|
builder.Append(method.NativeCommand.Name);
|
|
builder.Append('(');
|
|
AppendArguments(builder, method, invocation.PrefixArguments);
|
|
if (invocation.PrefixArguments.Count != 0)
|
|
{
|
|
builder.Append(", ");
|
|
}
|
|
|
|
builder.Append(spanName);
|
|
builder.Append(".Length, (");
|
|
builder.Append(invocation.ComponentType);
|
|
builder.Append("*)__vector);\n");
|
|
builder.Append(" }\n");
|
|
}
|
|
|
|
private static void AppendMatrix4Invocation(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
Matrix4Invocation invocation
|
|
)
|
|
{
|
|
ManagedParameterDefinition transpose = method.Parameters[invocation.TransposeParameterIndex];
|
|
ManagedParameterDefinition matrix = method.Parameters[invocation.MatrixParameterIndex];
|
|
string transposeName = EscapeIdentifier(transpose.Name);
|
|
string matrixName = EscapeIdentifier(matrix.Name);
|
|
if (invocation.IsSpan)
|
|
{
|
|
builder.Append(" fixed (GMatrix44<float>* __value = ");
|
|
builder.Append(matrixName);
|
|
builder.Append(")\n");
|
|
builder.Append(" {\n");
|
|
builder.Append(" __context->");
|
|
}
|
|
else
|
|
{
|
|
builder.Append(" __context->");
|
|
}
|
|
|
|
builder.Append(method.NativeCommand.Name);
|
|
builder.Append('(');
|
|
AppendArguments(builder, method, invocation.PrefixArguments);
|
|
if (invocation.PrefixArguments.Count != 0)
|
|
{
|
|
builder.Append(", ");
|
|
}
|
|
|
|
builder.Append(invocation.IsSpan ? $"{matrixName}.Length" : "1");
|
|
builder.Append(", ");
|
|
builder.Append(transposeName);
|
|
builder.Append(" ? (byte)1 : (byte)0, (float*)");
|
|
builder.Append(invocation.IsSpan ? "__value" : $"&{matrixName}");
|
|
builder.Append(");\n");
|
|
if (invocation.IsSpan)
|
|
{
|
|
builder.Append(" }\n");
|
|
}
|
|
}
|
|
|
|
private static void AppendNativeCall(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
IReadOnlyList<ManagedArgument> arguments
|
|
)
|
|
{
|
|
builder.Append("__context->");
|
|
builder.Append(method.NativeCommand.Name);
|
|
builder.Append('(');
|
|
AppendArguments(builder, method, arguments);
|
|
builder.Append(')');
|
|
}
|
|
|
|
private static void AppendArguments(
|
|
StringBuilder builder,
|
|
ManagedMethodDefinition method,
|
|
IReadOnlyList<ManagedArgument> arguments
|
|
)
|
|
{
|
|
for (int index = 0; index < arguments.Count; index++)
|
|
{
|
|
if (index != 0)
|
|
{
|
|
builder.Append(", ");
|
|
}
|
|
|
|
switch (arguments[index])
|
|
{
|
|
case ParameterArgument parameterArgument:
|
|
ManagedParameterDefinition parameter = method.Parameters[
|
|
parameterArgument.ParameterIndex];
|
|
string parameterName = EscapeIdentifier(parameter.Name);
|
|
if (parameter.IsEnum)
|
|
{
|
|
builder.Append("(uint");
|
|
builder.Append('*', parameter.Type.Count(value => value == '*'));
|
|
builder.Append(')');
|
|
builder.Append(parameterName);
|
|
}
|
|
else if (!parameter.IsHandle)
|
|
{
|
|
builder.Append(parameterName);
|
|
}
|
|
else if (parameter.Type.EndsWith('*'))
|
|
{
|
|
builder.Append("(uint*)");
|
|
builder.Append(parameterName);
|
|
}
|
|
else if (parameter.IsHandleSpan)
|
|
{
|
|
builder.Append("(uint*)__");
|
|
builder.Append(parameter.Name);
|
|
}
|
|
else
|
|
{
|
|
builder.Append(parameterName);
|
|
builder.Append(".Value");
|
|
}
|
|
|
|
break;
|
|
case SpanLengthArgument spanLengthArgument:
|
|
builder.Append(
|
|
EscapeIdentifier(
|
|
method.Parameters[spanLengthArgument.ParameterIndex].Name));
|
|
builder.Append(".Length");
|
|
break;
|
|
case VectorComponentArgument componentArgument:
|
|
builder.Append(
|
|
EscapeIdentifier(
|
|
method.Parameters[componentArgument.ParameterIndex].Name));
|
|
builder.Append('.');
|
|
builder.Append(componentArgument.Component);
|
|
break;
|
|
default:
|
|
throw new InvalidOperationException(
|
|
$"Unsupported managed argument '{arguments[index].GetType().Name}'.");
|
|
}
|
|
}
|
|
}
|
|
|
|
private static string EscapeIdentifier(
|
|
string value
|
|
)
|
|
{
|
|
return _csharpKeywords.Contains(value) ? $"@{value}" : value;
|
|
}
|
|
|
|
private static void AppendGeneratedHeader(
|
|
StringBuilder builder,
|
|
string outputFileName,
|
|
string description
|
|
)
|
|
{
|
|
builder.Append("// -----------------------------------------------------------------------------\n");
|
|
builder.Append("// file=\"");
|
|
builder.Append(ReadGeneratedFileName(outputFileName));
|
|
builder.Append("\"\n");
|
|
builder.Append("// Project: StgSharp\n");
|
|
builder.Append("// Copyright (c) Nitload.\n");
|
|
builder.Append("// SPDX-License-Identifier: MIT\n");
|
|
builder.Append("// -----------------------------------------------------------------------------\n\n");
|
|
builder.Append("// <auto-generated>\n");
|
|
builder.Append("// Generated by StgSharp.GenerateGL.\n");
|
|
builder.Append("// ");
|
|
builder.Append(description);
|
|
builder.Append(".\n");
|
|
builder.Append("// </auto-generated>\n\n");
|
|
}
|
|
|
|
private static string ReadGeneratedFileName(
|
|
string outputFileName
|
|
)
|
|
{
|
|
const string generatedExtension = ".g.cs";
|
|
const string sourceExtension = ".cs";
|
|
if (outputFileName.EndsWith(generatedExtension, StringComparison.Ordinal))
|
|
{
|
|
return outputFileName[..^generatedExtension.Length];
|
|
}
|
|
|
|
return outputFileName.EndsWith(sourceExtension, StringComparison.Ordinal)
|
|
? outputFileName[..^sourceExtension.Length]
|
|
: outputFileName;
|
|
}
|
|
|
|
private sealed record ConstantExpression(
|
|
string Type,
|
|
string Literal
|
|
);
|
|
|
|
private sealed record GlCommandGroup(
|
|
string FileName,
|
|
string Description,
|
|
IReadOnlyList<GlCommandDefinition> Commands
|
|
);
|
|
|
|
private sealed record ManagedCommandGroup(
|
|
GlCommandGroup Source,
|
|
IReadOnlyList<ManagedMethodDefinition> Methods
|
|
);
|
|
|
|
}
|
|
}
|