public void DestroyShaderModule(IMgDevice device, IMgAllocationCallbacks allocator)
{
if (mIsDisposed)
{
return;
}
if (ShaderId.HasValue)
{
mEntrypoint.DeleteShaderModule(ShaderId.Value);
//GL.DeleteShader(ShaderId.Value);
ShaderId = null;
}
mIsDisposed = true;
}
internal static int CompileShader(IGLShaderModuleEntrypoint entrypoint, MgShaderStageFlagBits stage, string fileContents, string shaderPrefix, string functionName)
{
int retVal = entrypoint.CreateShaderModule(stage);
// GL.CreateShader(type);
//string includePath = ".";
// GLSL has this annoying feature that the #version directive must appear first. But we
// want to inject some #define shenanigans into the shader.
// So to do that, we need to split for the part of the shader up to the end of the #version line,
// and everything after that. We can then inject our defines right there.
var strTuple = VersionSplit(fileContents);
string versionStr = strTuple.Item1;
string shaderContents = strTuple.Item2;
var builder = new StringBuilder();
builder.AppendLine(versionStr);
builder.AppendLine(shaderPrefix);
builder.Append(shaderContents);
// APPEND custom function name to replicate custom function name
builder.Append("void main() { ");
builder.Append(functionName);
builder.Append("(); }");
entrypoint.CompileShaderModule(retVal, builder.ToString());
//GL.ShaderSource(retVal, builder.ToString());
//GL.CompileShader(retVal);
bool isCompiled = entrypoint.IsCompiled(retVal);
//int compileStatus = 0;
//GL.GetShader(retVal, ShaderParameter.CompileStatus, out compileStatus);
//// if (compileStatus != (int)All.True)
//int glinfoLogLength = 0;
//GL.GetShader(retVal, ShaderParameter.InfoLogLength, out glinfoLogLength);
//if (glinfoLogLength > 1)
bool hasMessages = entrypoint.HasCompilerMessages(retVal);
if (hasMessages)
{
string buffer = entrypoint.GetCompilerMessages(retVal);
// GL.GetShaderInfoLog(retVal);
if (!isCompiled)
{
throw new Exception("Shader Compilation failed for shader with the following errors: " + buffer);
}
// else {
// Console.WriteLine("Shader Compilation succeeded for shader '{0}', with the following log:", _shaderFilename);
// }
//
// Console.WriteLine(buffer);
}
if (!isCompiled)
{
entrypoint.DeleteShaderModule(retVal);
retVal = 0;
}
return(retVal);
}