initial commit, can make a window and draw a line, good enough for now
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1e57d7bcdc
198
csdl/__init__.py
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198
csdl/__init__.py
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import ctypes
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_SDL = ctypes.cdll.LoadLibrary('/usr/local/lib/libSDL-1.3.so.0.0.0')
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def get_power_info():
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seconds = ctypes.c_int()
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percent = ctypes.c_int()
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_SDL.SDL_GetPowerInfo(ctypes.byref(seconds),
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ctypes.byref(percent))
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return seconds.value, percent.value
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# Constants
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SDL_INIT_TIMER = 0x00000001
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SDL_INIT_AUDIO = 0x00000010
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SDL_INIT_VIDEO = 0x00000020
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SDL_INIT_JOYSTICK = 0x00000200
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SDL_INIT_HAPTIC = 0x00001000
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SDL_INIT_NOPARACHUTE = 0x00100000
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SDL_INIT_EVERYTHING = 0x0000FFFF
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##### Error Handling
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class SDLError(Exception):
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""" Exception representing an error in an SDL call """
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_SDL.SDL_GetError.restype = ctypes.c_char_p
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def get_error():
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return _SDL.SDL_GetError()
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def set_error(msg):
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_SDL.SDL_SetError(msg)
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def clear_error():
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_SDL.SDL_ClearError()
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def errcheck(result):
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if result < 0:
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msg = _SDL.SDL_GetError()
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_SDL.SDL_ClearError()
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raise SDLError(msg)
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return result
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##### Initialization
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def init(flags):
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errcheck(_SDL.SDL_Init(flags))
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def init_sub_system(flags):
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errcheck(_SDL.SDL_InitSubSystem(flags))
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def quit_sub_system(flags):
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errcheck(_SDL.SDL_QuitSubSystem(flags))
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def was_init(flags=0):
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errcheck(_SDL.SDL_WasInit(flags))
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def quit():
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_SDL.SDL_Quit()
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##### Version Info
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class Version(ctypes.Structure):
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_fields_ = (
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("major", ctypes.c_uint8),
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("minor", ctypes.c_uint8),
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("patch", ctypes.c_uint8)
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)
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def __str__(self):
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return '{0}.{1}.{2}'.format(self.major,
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self.minor,
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self.patch)
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def get_version():
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v = Version()
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_SDL.SDL_GetVersion(ctypes.byref(v))
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return v
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_SDL.SDL_GetRevision.restype = ctypes.c_char_p
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def get_revision():
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return _SDL.SDL_GetRevision()
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#### video
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class DisplayMode(ctypes.Structure):
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_fields_ = (
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('format', ctypes.c_uint32),
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('width', ctypes.c_int),
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('height', ctypes.c_int),
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('refresh_rate', ctypes.c_int),
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('driver_data', ctypes.c_void_p)
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)
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def __repr__(self):
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return '{0}x{1} @{2}Hz ({3})'.format(self.width,
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self.height,
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self.refresh_rate,
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get_pixel_format_name(self.format)
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)
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class RendererInfo(ctypes.Structure):
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_fields_ = (
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('name', ctypes.c_char_p),
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('flags', ctypes.c_uint32),
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('mod_modes', ctypes.c_uint32),
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('blend_modes', ctypes.c_uint32),
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('scale_modes', ctypes.c_uint32),
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('num_texture_formats', ctypes.c_uint32),
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('texture_formats', ctypes.c_uint32*50),
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('max_texture_width', ctypes.c_int),
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('max_texture_height', ctypes.c_int)
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)
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class Renderer(object):
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def __init__(self, window, index=-1, flags=0):
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self._renderer = errcheck(_SDL.SDL_CreateRenderer(window, index, flags))
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def get_info(self):
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rinfo = RendererInfo()
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errcheck(_SDL.SDL_GetRendererInfo(self._renderer, ctypes.byref(rinfo)))
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return rinfo
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def set_draw_color(self, r, g, b, a=255):
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errcheck(_SDL.SDL_SetRenderDrawColor(self._renderer, r, g, b, a))
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def clear(self):
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errcheck(_SDL.SDL_RenderClear(self._renderer))
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def present(self):
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errcheck(_SDL.SDL_RenderPresent(self._renderer))
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def draw_line(self, x1, y1, x2, y2):
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errcheck(_SDL.SDL_RenderDrawLine(self._renderer, x1, y1, x2, y2))
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class Window(object):
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def __init__(self, title, x, y, w, h, flags=0):
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self._handle = errcheck(_SDL.SDL_CreateWindow(title, x, y, w, h,
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flags))
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self.renderer = Renderer(self._handle)
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def destroy(self):
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_SDL.SDL_DestroyWindow(self._handle)
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def disable_screensaver():
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_SDL.SDL_DisableScreenSaver()
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def enable_screensaver():
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_SDL.SDL_EnableScreenSaver()
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def is_screensaver_enabled():
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return _SDL.SDL_IsScreenSaverEnabled() == 1
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def get_current_display_mode(display):
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mode = DisplayMode()
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result = _SDL.SDL_GetCurrentDisplayMode(display, ctypes.byref(mode))
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if result == 0:
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return mode
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_SDL.SDL_GetPixelFormatName.restype = ctypes.c_char_p
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def get_pixel_format_name(format):
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return _SDL.SDL_GetPixelFormatName(format)
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_SDL.SDL_GetCurrentVideoDriver.restype = ctypes.c_char_p
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def get_current_video_driver():
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return _SDL.SDL_GetCurrentVideoDriver()
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def get_num_video_displays():
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return _SDL.SDL_GetNumVideoDisplays()
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_video_driver_list = []
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_SDL.SDL_GetVideoDriver.restype = ctypes.c_char_p
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def get_video_drivers():
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if not _video_driver_list:
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num = _SDL.SDL_GetNumVideoDrivers()
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for i in xrange(num):
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_video_driver_list.append(_SDL.SDL_GetVideoDriver(i))
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return _video_driver_list
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_display_mode_list = {}
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def get_display_modes(display_index):
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if not display_index in _display_mode_list:
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_display_mode_list[display_index] = []
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num = _SDL.SDL_GetNumDisplayModes(display_index)
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for i in xrange(num):
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mode = DisplayMode()
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_SDL.SDL_GetDisplayMode(display_index, i, ctypes.byref(mode))
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_display_mode_list[display_index].append(mode)
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return _display_mode_list[display_index]
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def get_desktop_display_mode(display_index):
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mode = DisplayMode()
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_SDL.SDL_GetDesktopDisplayMode(display_index, ctypes.byref(mode))
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return mode
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