/// <summary>
/// Creates an effect parameter collection from the specified collection of techniques.
/// </summary>
/// <param name="techniques">The collection of techniques from which to create an effect parameter collection.</param>
/// <param name="parameters">The collection of expected parameter names, or <see langword="null"/> to query
/// effect parameters from shader uniforms.</param>
/// <returns>The effect parameter collection that was created.</returns>
private OpenGLEffectParameterCollection CreateEffectParameters(
IEnumerable <OpenGLEffectTechnique> techniques, IEnumerable <String> parameters)
{
var paramlist = new Dictionary <String, OpenGLEffectParameter>();
var uniforms =
from tech in techniques
from pass in tech.Passes
from prog in ((OpenGLEffectPass)pass).Programs
from unif in prog.Uniforms
let name = unif.Name
let nameSanitized = name.EndsWith("[0]") ? name.Substring(0, name.Length - "[0]".Length) : name
where parameters == null || parameters.Contains(nameSanitized)
group unif by nameSanitized into g
select g;
var mismatches = uniforms.Where(x => x.Select(y => y.Type).Distinct().Count() > 1);
if (mismatches.Any())
{
throw new InvalidOperationException(OpenGLStrings.EffectUniformTypeMismatch.Format(mismatches.First().Key));
}
foreach (var kvp in uniforms)
{
var name = kvp.Key;
var type = kvp.Select(x => x.Type).First();
var parameter = new OpenGLEffectParameter(Ultraviolet, name, type);
paramlist[name] = parameter;
foreach (var uniform in kvp)
{
uniform.SetDataSource(parameter.Data);
}
}
if (parameters != null)
{
foreach (var p in parameters)
{
if (!paramlist.ContainsKey(p))
{
throw new InvalidOperationException(OpenGLStrings.EffectParameterCannotFindUniform.Format(p));
}
}
}
return(new OpenGLEffectParameterCollection(paramlist.Values));
}
/// <summary>
/// Creates an effect parameter collection from the specified collection of techniques.
/// </summary>
/// <param name="techniques">The collection of techniques from which to create an effect parameter collection.</param>
/// <param name="parameters">The collection of expected parameter names, or <see langword="null"/> to query
/// effect parameters from shader uniforms.</param>
/// <returns>The effect parameter collection that was created.</returns>
private OpenGLEffectParameterCollection CreateEffectParameters(
IEnumerable<OpenGLEffectTechnique> techniques, IEnumerable<String> parameters)
{
var paramlist = new Dictionary<String, OpenGLEffectParameter>();
var uniforms =
from tech in techniques
from pass in tech.Passes
from prog in ((OpenGLEffectPass)pass).Programs
from unif in prog.Uniforms
let name = unif.Name
let nameSanitized = name.EndsWith("[0]") ? name.Substring(0, name.Length - "[0]".Length) : name
where parameters == null || parameters.Contains(nameSanitized)
group unif by nameSanitized into g
select g;
var mismatches = uniforms.Where(x => x.Select(y => y.Type).Distinct().Count() > 1);
if (mismatches.Any())
throw new InvalidOperationException(OpenGLStrings.EffectUniformTypeMismatch.Format(mismatches.First().Key));
foreach (var kvp in uniforms)
{
var name = kvp.Key;
var type = kvp.Select(x => x.Type).First();
var parameter = new OpenGLEffectParameter(Ultraviolet, name, type);
paramlist[name] = parameter;
foreach (var uniform in kvp)
{
uniform.SetDataSource(parameter.Data);
}
}
if (parameters != null)
{
foreach (var p in parameters)
{
if (!paramlist.ContainsKey(p))
throw new InvalidOperationException(OpenGLStrings.EffectParameterCannotFindUniform.Format(p));
}
}
return new OpenGLEffectParameterCollection(paramlist.Values);
}