Пример #1
0
func (c *Context) DeleteTexture(t Texture) {
	gl := c.gl
	if !gl.IsTexture(mgl.Texture(t)) {
		return
	}
	if c.lastTexture == t {
		c.lastTexture = invalidTexture
	}
	gl.DeleteTexture(mgl.Texture(t))
}
Пример #2
0
func (c *Context) NewFramebuffer(texture Texture) (Framebuffer, error) {
	gl := c.gl
	f := gl.CreateFramebuffer()
	if f.Value <= 0 {
		return Framebuffer{}, errors.New("opengl: creating framebuffer failed: gl.IsFramebuffer returns false")
	}
	c.bindFramebuffer(Framebuffer(f))

	gl.FramebufferTexture2D(mgl.FRAMEBUFFER, mgl.COLOR_ATTACHMENT0, mgl.TEXTURE_2D, mgl.Texture(texture), 0)
	s := gl.CheckFramebufferStatus(mgl.FRAMEBUFFER)
	if s != mgl.FRAMEBUFFER_COMPLETE {
		if s != 0 {
			return Framebuffer{}, fmt.Errorf("opengl: creating framebuffer failed: %v", s)
		}
		if e := gl.GetError(); e != mgl.NO_ERROR {
			return Framebuffer{}, fmt.Errorf("opengl: creating framebuffer failed: (glGetError) %d", e)
		}
		return Framebuffer{}, fmt.Errorf("opengl: creating framebuffer failed: unknown error")
	}
	return Framebuffer(f), nil
}
Пример #3
0
func (c *Context) IsTexture(t Texture) bool {
	gl := c.gl
	return gl.IsTexture(mgl.Texture(t))
}
Пример #4
0
func (c *Context) bindTextureImpl(t Texture) error {
	gl := c.gl
	gl.BindTexture(mgl.TEXTURE_2D, mgl.Texture(t))
	return nil
}