internal void Parse(ShaderRepository repository, string source)
{
// Parse include statements
// TODO: regex match includes all leading new line chars
var versionMatches = Regex.Matches(source, @"^\s*\#version\s+(.*?)\s*$", RegexOptions.Multiline);
if (versionMatches.Count > 0)
{
VersionString = versionMatches[0].Groups[1].Value;
if (versionMatches.Count > 1)
{
_device.TextOutput.Print(OutputTypeGlob.Warning, "Shader source " + Filename + " contains multiple #version statements!");
}
}
else
{
VersionString = repository.DefaultVersionString;
_device.TextOutput.Print(OutputTypeGlob.Debug, "Shader source " + Filename + " contains no #version statement!");
}
var matches = Regex.Matches(source, @"^\s*\#include\s+(.*?)\s*$", RegexOptions.Multiline);
foreach (Match m in matches)
{
var dependency = repository.GetShaderSource(m.Groups[1].Value.Trim());
repository.AddDependency(this, dependency);
}
// TODO: version handling
// Remove include statements from source
ParsedCode = source;
ParsedCode = ParsedCode.Replace("\r\n", "\n");
ParsedCode = Regex.Replace(ParsedCode, @"^\s*\#include\s+(.*?)\s*\r?$", match =>
{
return("/* " + match.Value + " */");
}, RegexOptions.Multiline);
ParsedCode = Regex.Replace(ParsedCode, @"^\s*\#version\s+(.*?)\s*$", match =>
{
return("/* " + match.Value + " */");
}, RegexOptions.Multiline);
}
/// <summary>
/// Returns GLSL code with resolved dependencies that is ready to compile.
/// </summary>
internal ResolvedShader GetResolvedGlsl(ShaderRepository repository, Shader shader)
{
Dictionary <ShaderSource, int> dependencyOrder = new Dictionary <ShaderSource, int>();
GetDependencyOrder(new HashSet <ShaderSource>(), dependencyOrder, 0);
var ordered = dependencyOrder.OrderByDescending(x => x.Value).ToList();
StringBuilder sb = new StringBuilder();
sb.AppendLine("#version " + VersionString);
sb.AppendLine(repository.ShaderHeader);
// Not needed when compiling to Spirv since macros can be specified with args in glsLang
foreach (var macro in shader.Macros)
{
sb.AppendLine("#define " + macro.Item1 + " " + macro.Item2);
}
List <Tuple <int, string> > blocks = new List <Tuple <int, string> >();
blocks.Add(new Tuple <int, string>(0, "Shader version, header and macros"));
int lines = CountLines(repository.ShaderHeader) + 1;
for (int i = 0; i < ordered.Count; i++)
{
var dependency = ordered[i].Key;
sb.AppendLine("/* File: " + dependency.Filename + " */");
lines += 1;
blocks.Add(new Tuple <int, string>(lines, dependency.Filename));
sb.AppendLine(dependency.ParsedCode);
lines += CountLines(dependency.ParsedCode);
}
return(new ResolvedShader()
{
Code = sb.ToString(),
Blocks = blocks,
});
}
/// <summary>
/// Creates a new Glob Device. Can only be called once the OpenGL context is already created, for example by creating an OpenTK GameWindow.
/// </summary>
/// <param name="textOutput">Text output that will be used by Glob</param>
/// <param name="fileManager">File manager that will be used by Glob</param>
public Device(ITextOutputGlob textOutput, IFileManagerGlob fileManager)
{
TextOutput = textOutput;
FileManager = fileManager;
DeviceInfo = new DeviceInfo();
// TODO: move these to DeviceInfo.ToString()
TextOutput.Print(OutputTypeGlob.Notify, "OpenGL: " + DeviceInfo.OpenGLVersion + " GLSL: " + DeviceInfo.GLSLVersion);
TextOutput.Print(OutputTypeGlob.Notify, "Renderer: " + DeviceInfo.DeviceRenderer + ", " + DeviceInfo.DeviceVendor);
// Print extensions
StringBuilder allExtensionsStr = new StringBuilder();
foreach (string extension in DeviceInfo.Extensions)
{
allExtensionsStr.Append(extension);
allExtensionsStr.Append(" ");
}
TextOutput.Print(OutputTypeGlob.Notify, DeviceInfo.Extensions.Count.ToString() + " GL extensions found");
TextOutput.Print(OutputTypeGlob.LogOnly, allExtensionsStr.ToString());
ShaderRepository = new ShaderRepository(this, "#extension GL_ARB_separate_shader_objects : enable\n");
ShaderRepository.StartFileWatcher(FileManager.GetPathShaderSource(""));
_bufferBindingManager = new BufferBindingManager();
DebugMessageManager = new DebugMessageManager(true);
_textureUnit = new TextureUnitState();
_currentRasterizerState = new RasterizerState();
_currentDepthState = new DepthState();
_currentBlendState = new BlendState();
// Create and bind a global vertex array object
_vaoGlobal = GL.GenVertexArray();
GL.BindVertexArray(_vaoGlobal);
}
