// CreateProgram creates, compiles, and links a gl.Program.
func CreateProgram(vertexSrc, fragmentSrc string) (gl.Program, error) {
program := gl.CreateProgram()
if program.Value == 0 {
return gl.Program{}, fmt.Errorf("glutil: no programs available")
}
vertexShader, err := loadShader(gl.VERTEX_SHADER, vertexSrc)
if err != nil {
return gl.Program{}, err
}
fragmentShader, err := loadShader(gl.FRAGMENT_SHADER, fragmentSrc)
if err != nil {
gl.DeleteShader(vertexShader)
return gl.Program{}, err
}
gl.AttachShader(program, vertexShader)
gl.AttachShader(program, fragmentShader)
gl.LinkProgram(program)
// Flag shaders for deletion when program is unlinked.
gl.DeleteShader(vertexShader)
gl.DeleteShader(fragmentShader)
if gl.GetProgrami(program, gl.LINK_STATUS) == 0 {
defer gl.DeleteProgram(program)
return gl.Program{}, fmt.Errorf("glutil: %s", gl.GetProgramInfoLog(program))
}
return program, nil
}
func stop() {
stopAudio()
gl.DeleteProgram(program)
gl.DeleteBuffer(positionbuf)
gl.DeleteBuffer(pointsizebuf)
}
func (e *Engine) Stop() {
gl.DeleteProgram(e.shader.program)
for _, buf := range e.shape.Objs {
gl.DeleteBuffer(buf.coord)
gl.DeleteBuffer(buf.uvcoord)
gl.DeleteBuffer(buf.normal)
}
}
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()
}
func onStop() {
gl.DeleteProgram(program)
gl.DeleteBuffer(swasBuffer)
}
func (e *Engine) Stop() {
gl.DeleteProgram(e.shader.program)
gl.DeleteBuffer(e.shape.buf)
}
func (e *Engine) Stop() {
gl.DeleteProgram(e.shader.program)
for _, buf := range e.shape.bufs {
gl.DeleteBuffer(buf.coord)
}
}
func onStop() {
gl.DeleteProgram(program)
gl.DeleteBuffer(buf)
}
//停止时触发,清理
func onStop() {
gl.DeleteProgram(program)
gl.DeleteBuffer(positionbuf)
gl.DeleteBuffer(colorbuf)
}
func (shader *shader) Close() error {
gl.DeleteProgram(shader.program)
return nil
}