func CreateCtx(flags createFlags) (*Context, error) {
ctx := C.nvgCreateGL3((C.int)(flags))
if ctx == nil {
return nil, errors.New("cannot create nanovg context")
}
return &Context{ctx}, nil
}
func Init() {
if vg != nil {
panic("blendish: already initialized")
}
C.glewExperimental = C.GL_TRUE
if C.glewInit() != C.GLEW_OK {
log.Fatalln("blendish: could not init glew (GL extensions)")
}
// GLEW generates GL error because it calls
// glGetString(GL_EXTENSIONS), we'll consume it here.
C.glGetError()
vg = C.nvgCreateGL3(C.NVG_ANTIALIAS | C.NVG_STENCIL_STROKES)
fontPath := C.CString(filepath.Join(dirs[0], "DejaVuSans.ttf"))
iconsPath := C.CString(filepath.Join(dirs[0], "blender_icons16.png"))
sys := C.CString("system")
defer C.free(unsafe.Pointer(fontPath))
defer C.free(unsafe.Pointer(iconsPath))
defer C.free(unsafe.Pointer(sys))
C.bndSetFont(C.nvgCreateFont(vg, sys, fontPath))
C.bndSetIconImage(C.nvgCreateImage(vg, iconsPath, 0))
}