Class: Rugl::CommandCompiler

Inherits:
Object
  • Object
show all
Defined in:
lib/rugl/command_compiler.rb

Constant Summary collapse

STATE_KEYS = 
%i[
  depth blend stencil scissor cull polygon_offset color_mask
  front_face line_width dither sample viewport
].freeze

Instance Method Summary collapse

Constructor Details

#initialize(context) ⇒ CommandCompiler

Returns a new instance of CommandCompiler.



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# File 'lib/rugl/command_compiler.rb', line 10

def initialize(context)
  @context = context
end

Instance Method Details

#compile(opts) ⇒ Object 



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# File 'lib/rugl/command_compiler.rb', line 14

def compile(opts)
  validate_command_opts!(opts)

  program = get_or_create_program(opts.fetch(:vert), opts.fetch(:frag))
  attributes = compile_attributes(opts[:attributes] || {}, program)
  uniforms = compile_uniforms(opts[:uniforms] || {}, program)
  elements = opts[:elements]
  state = compile_state(opts)

  draw_params = {
    count: opts[:count],
    primitive: opts.fetch(:primitive, :triangles),
    offset: opts.fetch(:offset, 0),
    instances: opts[:instances]
  }

  vao = create_vao(attributes, elements)

  Command.new(
    context: @context,
    program: program,
    vao: vao,
    attributes: attributes,
    uniforms: uniforms,
    elements: elements,
    state: state,
    draw_params: draw_params,
    framebuffer: opts[:framebuffer]
  )
end