func LoadShaders(glctx gl.Context, program gl.Program, vertexAsset, fragmentAsset string) error {
vertexShader, err := loadShader(glctx, gl.VERTEX_SHADER, vertexAsset)
if err != nil {
return err
}
fragmentShader, err := loadShader(glctx, gl.FRAGMENT_SHADER, fragmentAsset)
if err != nil {
glctx.DeleteShader(vertexShader)
return err
}
if glctx.GetProgrami(program, gl.ATTACHED_SHADERS) > 0 {
for _, shader := range glctx.GetAttachedShaders(program) {
glctx.DetachShader(program, shader)
}
}
glctx.AttachShader(program, vertexShader)
glctx.AttachShader(program, fragmentShader)
glctx.LinkProgram(program)
// Flag shaders for deletion when program is unlinked.
glctx.DeleteShader(vertexShader)
glctx.DeleteShader(fragmentShader)
if glctx.GetProgrami(program, gl.LINK_STATUS) == 0 {
defer glctx.DeleteProgram(program)
return fmt.Errorf("LoadShaders: %s", glctx.GetProgramInfoLog(program))
}
return nil
}
