sdl.go

gistfile1.go

package sdl

// #include "SDL/SDL.h"
// #include "SDL/SDL_image.h"
import "C"

import (
	"unsafe"
)

type Surface struct {
	surface *C.SDL_Surface
}

type Event struct {
	event *C.SDL_Event
}

func Init(flags uint32) int {
	return int(C.SDL_Init(C.Uint32(flags)))
}

func Quit() {
	C.SDL_Quit()
}

func SetVideoMode(width, height, bpp int, flags uint32) *Surface {
	surface := new(Surface)
	surface.surface = C.SDL_SetVideoMode(C.int(width), C.int(height), C.int(bpp), C.Uint32(flags))
	return surface
}

func (surface *Surface) LoadBMP(filename string) uintptr {
	if surface.surface != nil {
		surface.FreeSurface()
	}
	surface.surface = C.SDL_LoadBMP_RW(C.SDL_RWFromFile(C.CString(filename), C.CString("rb")), C.int(1))
	return uintptr(unsafe.Pointer(surface.surface))
}

func (surface *Surface) IMGLoad(filename string) uintptr {
	surface.surface = C.IMG_Load(C.CString(filename))
	return uintptr(unsafe.Pointer(surface.surface))
}

func (surface *Surface) FreeSurface() {
	C.SDL_FreeSurface(surface.surface)
}

func (surface *Surface) Blit(source *Surface, srcrect, dstrect *Rect) int {
	var _srcrect *C.SDL_Rect
	var _dstrect *C.SDL_Rect
	if srcrect != nil {
		_srcrect = new(C.SDL_Rect)
		_srcrect.x = C.Sint16(srcrect.X)
		_srcrect.y = C.Sint16(srcrect.Y)
		_srcrect.w = C.Uint16(srcrect.W)
		_srcrect.h = C.Uint16(srcrect.H)
	}
	if dstrect != nil {
		_dstrect = new(C.SDL_Rect)
		_dstrect.x = C.Sint16(dstrect.X)
		_dstrect.y = C.Sint16(dstrect.Y)
		_dstrect.w = C.Uint16(dstrect.W)
		_dstrect.h = C.Uint16(dstrect.H)
	}
	return int(C.SDL_BlitSurface(source.surface, _srcrect, surface.surface, _dstrect))
}

func Delay(ms uint32) {
	C.SDL_Delay(C.Uint32(ms))
}

func (surface *Surface) Flip() int {
	return int(C.SDL_Flip(surface.surface))
}

func (surface *Surface) DisplayFormat() {
	defer C.SDL_FreeSurface(surface.surface)
	surface.surface = C.SDL_DisplayFormat(surface.surface)
}

func (event *Event) PollEvent() int {
	return 1
}

sdl_constants.c

#include "SDL/SDL.h"

//SDL_Init flags
enum {
  $INIT_TIMER = SDL_INIT_TIMER,
  $INIT_AUDIO = SDL_INIT_AUDIO,
  $INIT_VIDEO = SDL_INIT_VIDEO,
  $INIT_CDROM = SDL_INIT_CDROM,
  $INIT_JOYSTICK = SDL_INIT_JOYSTICK,
  $INIT_NOPARACHUTE = SDL_INIT_NOPARACHUTE,
  $INIT_EVENTTHREAD = SDL_INIT_EVENTTHREAD,
  $INIT_EVERYTHING = SDL_INIT_EVERYTHING
};

//SDL_Surface flags
enum {
  // Available for SDL_CreateRGBSurface() or SDL_SetVideoMode()
  $SWSURFACE = SDL_SWSURFACE,
  $HWSURFACE = SDL_HWSURFACE,
  $ASYNCBLIT = SDL_ASYNCBLIT,
  // Available for SDL_SetVideoMode()
  $ANYFORMAT = SDL_ANYFORMAT,
  $HWPALETTE = SDL_HWPALETTE,
  $DOUBLEBUF = SDL_DOUBLEBUF,
  $FULLSCREEN = SDL_FULLSCREEN,
  $OPENGL = SDL_OPENGL,
  $OPENGLBLIT = SDL_OPENGLBLIT,
  $RESIZABLE = SDL_RESIZABLE,
  $NOFRAME = SDL_NOFRAME,
  // Used internally (read-only)
  $HWACCEL = SDL_HWACCEL,
  $SRCCOLORKEY = SDL_SRCCOLORKEY,
  $RLEACCELOK = SDL_RLEACCELOK,
  $RLEACCEL = SDL_RLEACCEL,
  $SRCALPHA = SDL_SRCALPHA,
  $PREALLOC = SDL_PREALLOC
};

//SDL_Event constants
enum {
  $QUIT = SDL_QUIT
};

sdl_constants.go

// godefs -g sdl sdl_constants.c

// MACHINE GENERATED - DO NOT EDIT.

package sdl

// Constants
const (
	INIT_TIMER       = 0x1
	INIT_AUDIO       = 0x10
	INIT_VIDEO       = 0x20
	INIT_CDROM       = 0x100
	INIT_JOYSTICK    = 0x200
	INIT_NOPARACHUTE = 0x100000
	INIT_EVENTTHREAD = 0x1000000
	INIT_EVERYTHING  = 0xffff
	SWSURFACE        = 0
	HWSURFACE        = 0x1
	ASYNCBLIT        = 0x4
	ANYFORMAT        = 0x10000000
	HWPALETTE        = 0x20000000
	DOUBLEBUF        = 0x40000000
	FULLSCREEN       = 0x80000000
	OPENGL           = 0x2
	OPENGLBLIT       = 0xa
	RESIZABLE        = 0x10
	NOFRAME          = 0x20
	HWACCEL          = 0x100
	SRCCOLORKEY      = 0x1000
	RLEACCELOK       = 0x2000
	RLEACCEL         = 0x4000
	SRCALPHA         = 0x10000
	PREALLOC         = 0x1000000
	QUIT             = 0xc
)

// Types

sdl_rect.go

package sdl

type Rect struct {
	X int16
	Y int16
	W uint16
	H uint16
}