func InitGL(width, height, msaa int, fullscreen bool) {
C.SDL_Init(C.SDL_INIT_VIDEO)
C.SDL_VideoInit( /*nil*/ C.SDL_GetVideoDriver(0))
C.SDL_GL_SetAttribute(C.SDL_GL_CONTEXT_MAJOR_VERSION, 3)
C.SDL_GL_SetAttribute(C.SDL_GL_CONTEXT_MINOR_VERSION, 2)
if msaa != 0 {
C.SDL_GL_SetAttribute(C.SDL_GL_MULTISAMPLEBUFFERS, 1)
C.SDL_GL_SetAttribute(C.SDL_GL_MULTISAMPLESAMPLES, C.int(msaa))
}
C.SDL_GL_SetAttribute(C.SDL_GL_DEPTH_SIZE, 16)
//win = C.SDL_CreateWindow(nil, C.SDL_WINDOWPOS_CENTERED, C.SDL_WINDOWPOS_CENTERED,C.int(width), C.int(height), C.SDL_WINDOW_OPENGL)
if fullscreen {
win = C.SDL_CreateWindow(nil, C.SDL_WINDOWPOS_CENTERED, C.SDL_WINDOWPOS_CENTERED, C.int(width), C.int(height), C.SDL_WINDOW_OPENGL|C.SDL_WINDOW_FULLSCREEN_DESKTOP)
} else {
win = C.SDL_CreateWindow(nil, C.SDL_WINDOWPOS_CENTERED, C.SDL_WINDOWPOS_CENTERED, C.int(width), C.int(height), C.SDL_WINDOW_OPENGL)
}
C.SDL_ShowWindow(win)
wat := C.SDL_GL_CreateContext(win)
fmt.Println(C.GoString(C.SDL_GetVideoDriver(0)))
C.SDL_GL_MakeCurrent(win, wat)
//C.SDL_GL_SetSwapInterval(1)
C.glEnable(C.GL_DEPTH_TEST)
C.glDepthFunc(C.GL_LEQUAL)
C.glClearColor(0.3, 0.5, 1, 0)
C.glClear(C.GL_COLOR_BUFFER_BIT | C.GL_DEPTH_BUFFER_BIT)
printerr("failed to initialize openGL")
}
func VideoInit(driver string, flags InitFlags) error {
c_str := C.CString(driver)
defer C.free(unsafe.Pointer(c_str))
c_flags := C.Uint32(flags)
ret := C.SDL_VideoInit(c_str, c_flags)
if ret == 0 {
return nil
}
return GetError()
}
func VideoInit(driver string) error {
cdriver := C.CString(driver)
defer C.free(unsafe.Pointer(cdriver))
if C.SDL_VideoInit(cdriver) != 0 {
return getError()
}
return nil
}
func VideoInit(driverName string) int {
_driverName := C.CString(driverName)
defer C.free(unsafe.Pointer(_driverName))
return (int)(C.SDL_VideoInit(_driverName))
}
// VideoInit (https://wiki.libsdl.org/SDL_VideoInit)
func VideoInit(driverName string) error {
if C.SDL_VideoInit(C.CString(driverName)) != 0 {
return GetError()
}
return nil
}
func VideoInit(driverName string) int {
return (int)(C.SDL_VideoInit(C.CString(driverName)))
}
// Function prototypes
// These functions are used internally, and should not be used unless you
// have a specific need to specify the video driver you want to use.
// You should normally use SDL_Init() or SDL_InitSubSystem().
//
// SDL_VideoInit() initializes the video subsystem -- sets up a connection
// to the window manager, etc, and determines the current video mode and
// pixel format, but does not initialize a window or graphics mode.
// Note that event handling is activated by this routine.
//
// If you use both sound and video in your application, you need to call
// SDL_Init() before opening the sound device, otherwise under Win32 DirectX,
// you won't be able to set full-screen display modes.
func VideoInit(driver string, flags uint32) int {
cdrv := cstr(driver)
return int(C.SDL_VideoInit(cdrv, C.Uint32(flags)))
}