github.com/as/shiny@v0.8.2/driver/gldriver/context.go (about)

     1  // Copyright 2016 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build darwin
     6  
     7  package gldriver
     8  
     9  import (
    10  	"runtime"
    11  
    12  	"github.com/as/shiny/gl"
    13  )
    14  
    15  // NewContext creates an OpenGL ES context with a dedicated processing thread.
    16  func NewContext() (gl.Context, error) {
    17  	glctx, worker := gl.NewContext()
    18  
    19  	errCh := make(chan error)
    20  	workAvailable := worker.WorkAvailable()
    21  	go func() {
    22  		runtime.LockOSThread()
    23  		err := surfaceCreate()
    24  		errCh <- err
    25  		if err != nil {
    26  			return
    27  		}
    28  
    29  		for range workAvailable {
    30  			worker.DoWork()
    31  		}
    32  	}()
    33  	if err := <-errCh; err != nil {
    34  		return nil, err
    35  	}
    36  	return glctx, nil
    37  }