/// <inheritdoc/>
public override EffectImplementation Process(ContentManager manager, IContentProcessorMetadata metadata, String input)
{
var isFragShader = (metadata.Extension == ".frag");
var isVertShader = (metadata.Extension == ".vert");
if (!isFragShader && !isVertShader)
{
throw new InvalidDataException(OpenGLStrings.ImplicitEffectsMustLoadFromShaders.Format(metadata.AssetPath));
}
var vertShaderFilePath = isFragShader ? Path.ChangeExtension(metadata.AssetPath, "vert") : metadata.AssetPath;
var fragShaderFilePath = isFragShader ? metadata.AssetPath : Path.ChangeExtension(metadata.AssetPath, "frag");
metadata.AddAssetDependency(isFragShader ? vertShaderFilePath : fragShaderFilePath);
var vertShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(vertShaderFilePath), Externs);
var vertShader = new OpenGLVertexShader(manager.Ultraviolet, new[] { vertShaderSource });
var fragShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(fragShaderFilePath), Externs);
var fragShader = new OpenGLFragmentShader(manager.Ultraviolet, new[] { fragShaderSource });
var program = new OpenGLShaderProgram(manager.Ultraviolet, vertShader, fragShader, false);
var pass = new OpenGLEffectPass(manager.Ultraviolet, "Default", new[] { program });
var technique = new OpenGLEffectTechnique(manager.Ultraviolet, "Default", new[] { pass });
return(new OpenGLEffectImplementation(manager.Ultraviolet, new[] { technique }));
}
/// <inheritdoc/>
public override EffectImplementation Process(ContentManager manager, IContentProcessorMetadata metadata, XDocument input)
{
var techniques = new List <OpenGLEffectTechnique>();
var techniqueElements = input.Root.Elements("Technique");
if (!techniqueElements.Any())
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveTechniques);
}
foreach (var techniqueElement in techniqueElements)
{
var techniqueName = (String)techniqueElement.Attribute("Name");
var techniquePasses = new List <OpenGLEffectPass>();
var passElements = techniqueElement.Elements("Pass");
if (!passElements.Any())
{
throw new ContentLoadException(OpenGLStrings.EffectTechniqueMustHavePasses);
}
foreach (var passElement in passElements)
{
var passName = (String)passElement.Attribute("Name");
var vertPath = GetShader(passElement, "VertexShader");
if (String.IsNullOrEmpty(vertPath))
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveVertexAndFragmentShader);
}
vertPath = ResolveDependencyAssetPath(metadata, vertPath);
metadata.AddAssetDependency(vertPath);
var fragPath = GetShader(passElement, "FragmentShader");
if (String.IsNullOrEmpty(fragPath))
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveVertexAndFragmentShader);
}
fragPath = ResolveDependencyAssetPath(metadata, fragPath);
metadata.AddAssetDependency(fragPath);
var vertShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(vertPath), Externs);
var vertShader = new OpenGLVertexShader(manager.Ultraviolet, new[] { vertShaderSource });
var fragShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(fragPath), Externs);
var fragShader = new OpenGLFragmentShader(manager.Ultraviolet, new[] { fragShaderSource });
var programs = new[] { new OpenGLShaderProgram(manager.Ultraviolet, vertShader, fragShader, false) };
techniquePasses.Add(new OpenGLEffectPass(manager.Ultraviolet, passName, programs));
}
techniques.Add(new OpenGLEffectTechnique(manager.Ultraviolet, techniqueName, techniquePasses));
}
return(new OpenGLEffectImplementation(manager.Ultraviolet, techniques));
}
/// <inheritdoc/>
public override EffectImplementation ImportPreprocessed(ContentManager manager, IContentProcessorMetadata metadata, BinaryReader reader)
{
var techniques = new List <OpenGLEffectTechnique>();
var techniqueCount = reader.ReadInt32();
if (techniqueCount == 0)
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveTechniques);
}
for (int i = 0; i < techniqueCount; i++)
{
var techniqueName = reader.ReadString();
var passes = new List <OpenGLEffectPass>();
var passCount = reader.ReadInt32();
if (passCount == 0)
{
throw new ContentLoadException(OpenGLStrings.EffectTechniqueMustHavePasses);
}
for (int j = 0; j < passCount; j++)
{
var passName = reader.ReadString();
var vertPathGL = reader.ReadString();
var vertPathES = reader.ReadString();
var vertPath = GetShaderForCurrentPlatform(vertPathGL, vertPathES);
if (String.IsNullOrEmpty(vertPath))
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveVertexAndFragmentShader);
}
vertPath = ResolveDependencyAssetPath(metadata, vertPath);
metadata.AddAssetDependency(vertPath);
var fragPathGL = reader.ReadString();
var fragPathES = reader.ReadString();
var fragPath = GetShaderForCurrentPlatform(fragPathGL, fragPathES);
if (String.IsNullOrEmpty(fragPath))
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveVertexAndFragmentShader);
}
fragPath = ResolveDependencyAssetPath(metadata, fragPath);
metadata.AddAssetDependency(fragPath);
var vertShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(vertPath), Externs);
var vertShader = new OpenGLVertexShader(manager.Ultraviolet, new[] { vertShaderSource });
var fragShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(fragPath), Externs);
var fragShader = new OpenGLFragmentShader(manager.Ultraviolet, new[] { fragShaderSource });
var programs = new[] { new OpenGLShaderProgram(manager.Ultraviolet, vertShader, fragShader, false) };
passes.Add(new OpenGLEffectPass(manager.Ultraviolet, passName, programs));
}
techniques.Add(new OpenGLEffectTechnique(manager.Ultraviolet, techniqueName, passes));
}
return(new OpenGLEffectImplementation(manager.Ultraviolet, techniques));
}
/// <inheritdoc/>
public override EffectImplementation Process(ContentManager manager, IContentProcessorMetadata metadata, XDocument input)
{
var desc = DeserializeDescription(input);
var parameters = new HashSet <String>(desc.Parameters);
var techniques = new List <OpenGLEffectTechnique>();
if (!desc.Techniques?.Any() ?? false)
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveTechniques);
}
foreach (var technique in desc.Techniques)
{
var techniqueName = technique.Name;
var techniquePasses = new List <OpenGLEffectPass>();
if (!technique.Passes?.Any() ?? false)
{
throw new ContentLoadException(OpenGLStrings.EffectTechniqueMustHavePasses);
}
foreach (var pass in technique.Passes)
{
var passName = pass.Name;
var vertPath = GetShaderForCurrentPlatform(pass.Stages.VertexShader, pass.Stages.VertexShaderES);
if (String.IsNullOrEmpty(vertPath))
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveVertexAndFragmentShader);
}
vertPath = ResolveDependencyAssetPath(metadata, vertPath);
metadata.AddAssetDependency(vertPath);
var fragPath = GetShaderForCurrentPlatform(pass.Stages.FragmentShader, pass.Stages.FragmentShaderES);
if (String.IsNullOrEmpty(fragPath))
{
throw new ContentLoadException(OpenGLStrings.EffectMustHaveVertexAndFragmentShader);
}
fragPath = ResolveDependencyAssetPath(metadata, fragPath);
metadata.AddAssetDependency(fragPath);
var vertShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(vertPath), Externs);
var vertShader = new OpenGLVertexShader(manager.Ultraviolet, new[] { vertShaderSource });
var fragShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(fragPath), Externs);
var fragShader = new OpenGLFragmentShader(manager.Ultraviolet, new[] { fragShaderSource });
foreach (var hint in vertShader.ShaderSourceMetadata.ParameterHints)
{
parameters.Add(hint);
}
foreach (var hint in fragShader.ShaderSourceMetadata.ParameterHints)
{
parameters.Add(hint);
}
var programs = new[] { new OpenGLShaderProgram(manager.Ultraviolet, vertShader, fragShader, false) };
techniquePasses.Add(new OpenGLEffectPass(manager.Ultraviolet, passName, programs));
}
techniques.Add(new OpenGLEffectTechnique(manager.Ultraviolet, techniqueName, techniquePasses));
}
return(new OpenGLEffectImplementation(manager.Ultraviolet, techniques, parameters));
}
/// <summary>
/// Initializes a new instance of the OpenGLShaderProgram class.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="vertexShader">The program's vertex shader.</param>
/// <param name="fragmentShader">The program's fragment shader.</param>
/// <param name="programOwnsShaders">A value indicating whether the program owns the shader objects.</param>
public OpenGLShaderProgram(UltravioletContext uv, OpenGLVertexShader vertexShader, OpenGLFragmentShader fragmentShader, Boolean programOwnsShaders)
: base(uv)
{
Contract.Require(vertexShader, nameof(vertexShader));
Contract.Require(fragmentShader, nameof(fragmentShader));
Ultraviolet.ValidateResource(vertexShader);
Ultraviolet.ValidateResource(fragmentShader);
this.vertexShader = vertexShader;
this.fragmentShader = fragmentShader;
this.programOwnsShaders = programOwnsShaders;
var concatenatedSourceMetadata = new ShaderSourceMetadata();
concatenatedSourceMetadata.Concat(vertexShader.ShaderSourceMetadata);
concatenatedSourceMetadata.Concat(fragmentShader.ShaderSourceMetadata);
var program = 0u;
uv.QueueWorkItem(state =>
{
program = gl.CreateProgram();
gl.ThrowIfError();
gl.AttachShader(program, vertexShader.OpenGLName);
gl.ThrowIfError();
gl.AttachShader(program, fragmentShader.OpenGLName);
gl.ThrowIfError();
gl.LinkProgram(program);
gl.ThrowIfError();
var log = gl.GetProgramInfoLog(program);
gl.ThrowIfError();
var status = gl.GetProgrami(program, gl.GL_LINK_STATUS);
gl.ThrowIfError();
var attributeCount = gl.GetProgrami(program, gl.GL_ACTIVE_ATTRIBUTES);
gl.ThrowIfError();
unsafe
{
var namebuf = Marshal.AllocHGlobal(256);
try
{
for (int i = 0; i < attributeCount; i++)
{
var attrNameLen = 0;
var attrName = default(String);
var attrSize = 0;
var attrType = 0u;
gl.GetActiveAttrib(program, (uint)i, 256, &attrNameLen, &attrSize, &attrType, (sbyte *)namebuf);
gl.ThrowIfError();
attrName = Marshal.PtrToStringAnsi(namebuf);
var location = gl.GetAttribLocation(program, attrName);
gl.ThrowIfError();
attributeLocations[attrName] = location;
attributeTypes[attrName] = attrType;
}
}
finally { Marshal.FreeHGlobal(namebuf); }
}
if (status == 0)
{
throw new InvalidOperationException(log);
}
}).Wait();
this.program = program;
this.uniforms = CreateUniformCollection(concatenatedSourceMetadata);
}
