/// <summary>
/// Creates the effect pass' collection of uniforms.
/// </summary>
/// <returns>The collection of uniforms that was created.</returns>
private OpenGLShaderUniformCollection CreateUniformCollection()
{
return(Ultraviolet.QueueWorkItemAndWait((state) =>
{
var programObject = ((OpenGLShaderProgram)state);
var program = programObject.program;
var uniforms = new List <OpenGLShaderUniform>();
var sampler = 0;
var count = gl.GetProgrami(program, gl.GL_ACTIVE_UNIFORMS);
gl.ThrowIfError();
for (uint i = 0; i < count; i++)
{
var type = 0u;
var name = gl.GetActiveUniform(program, i, out type);
gl.ThrowIfError();
var location = gl.GetUniformLocation(program, name);
gl.ThrowIfError();
uniforms.Add(new OpenGLShaderUniform(programObject.Ultraviolet, name, type, program, location, sampler));
if (type == gl.GL_SAMPLER_2D)
{
sampler++;
}
}
return new OpenGLShaderUniformCollection(uniforms);
}, this));
}
/// <inheritdoc/>
public override void Attach(RenderBuffer2D buffer)
{
Contract.Require(buffer, nameof(buffer));
Contract.Ensure <ArgumentException>(
buffer.Width == width &&
buffer.Height == height, OpenGLStrings.RenderBufferIsWrongSize);
Contract.EnsureNotDisposed(this, Disposed);
Ultraviolet.ValidateResource(buffer);
var sdlBuffer = (OpenGLRenderBuffer2D)buffer;
Ultraviolet.QueueWorkItemAndWait(() =>
{
using (OpenGLState.ScopedBindFramebuffer(framebuffer))
{
AttachRenderBuffer(sdlBuffer);
framebufferStatus = gl.CheckNamedFramebufferStatus(framebuffer, gl.GL_FRAMEBUFFER);
gl.ThrowIfError();
}
});
sdlBuffer.MarkAttached();
buffers.Add(sdlBuffer);
}