Exemple #1
0
func stop() {
	gl.DeleteProgram(glimage.program)
	gl.DeleteBuffer(glimage.quadXY)
	gl.DeleteBuffer(glimage.quadUV)

	texmap.Lock()
	for _, t := range texmap.texs {
		if t.gltex.Value != 0 {
			gl.DeleteTexture(t.gltex)
		}
		t.gltex = gl.Texture{}
	}
	texmap.Unlock()
}
Exemple #2
0
// init creates an underlying GL texture for a key.
// Must be called with a valid GL context.
// Must hold tm.Mutex before calling.
func (tm *texmapCache) init(key texmapKey) {
	tex := tm.texs[key]
	if tex.gltex.Value != 0 {
		panic(fmt.Sprintf("attempting to init key (%v) with valid texture", key))
	}
	tex.gltex = gl.CreateTexture()

	gl.BindTexture(gl.TEXTURE_2D, tex.gltex)
	gl.TexImage2D(gl.TEXTURE_2D, 0, tex.width, tex.height, gl.RGBA, gl.UNSIGNED_BYTE, nil)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)

	for _, t := range tm.toDelete {
		gl.DeleteTexture(t)
	}
	tm.toDelete = nil
}