/usr/lib/python2.7/dist-packages/pyglet/image/codecs/gdkpixbuf2.py is in python-pyglet 1.1.4.dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | # ----------------------------------------------------------------------------
# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: gdkpixbuf2.py 2496 2009-08-19 01:17:30Z benjamin.coder.smith $'
from ctypes import *
from pyglet.gl import *
from pyglet.image import *
from pyglet.image.codecs import *
from pyglet.image.codecs import gif
import pyglet.lib
import pyglet.window
gdk = pyglet.lib.load_library('gdk-x11-2.0')
gdkpixbuf = pyglet.lib.load_library('gdk_pixbuf-2.0')
GdkPixbufLoader = c_void_p
GdkPixbuf = c_void_p
gdkpixbuf.gdk_pixbuf_loader_new.restype = GdkPixbufLoader
gdkpixbuf.gdk_pixbuf_loader_get_pixbuf.restype = GdkPixbuf
gdkpixbuf.gdk_pixbuf_get_pixels.restype = c_void_p
gdkpixbuf.gdk_pixbuf_loader_get_animation.restype = c_void_p
gdkpixbuf.gdk_pixbuf_animation_get_iter.restype = c_void_p
gdkpixbuf.gdk_pixbuf_animation_iter_get_pixbuf.restype = GdkPixbuf
class GTimeVal(Structure):
_fields_ = [
('tv_sec', c_long),
('tv_usec', c_long)
]
class GdkPixbuf2ImageDecoder(ImageDecoder):
def get_file_extensions(self):
return ['.png', '.xpm', '.jpg', '.jpeg', '.tif', '.tiff', '.pnm',
'.ras', '.bmp', '.gif']
def get_animation_file_extensions(self):
return ['.gif', '.ani']
def _load(self, file, filename, load_func):
data = file.read()
err = c_int()
loader = gdkpixbuf.gdk_pixbuf_loader_new()
gdkpixbuf.gdk_pixbuf_loader_write(loader, data, len(data), byref(err))
result = load_func(loader)
if not gdkpixbuf.gdk_pixbuf_loader_close(loader, byref(err)):
raise ImageDecodeException(filename)
if not result:
raise ImageDecodeException('Unable to load: %s' % filename)
return result
def _pixbuf_to_image(self, pixbuf):
# Get format and dimensions
width = gdkpixbuf.gdk_pixbuf_get_width(pixbuf)
height = gdkpixbuf.gdk_pixbuf_get_height(pixbuf)
channels = gdkpixbuf.gdk_pixbuf_get_n_channels(pixbuf)
rowstride = gdkpixbuf.gdk_pixbuf_get_rowstride(pixbuf)
pixels = gdkpixbuf.gdk_pixbuf_get_pixels(pixbuf)
# Copy pixel data.
buffer = (c_ubyte * (rowstride * height))()
memmove(buffer, pixels, rowstride * (height - 1) + width * channels)
# Release pixbuf
gdk.g_object_unref(pixbuf)
# Determine appropriate GL type
if channels == 3:
format = 'RGB'
else:
format = 'RGBA'
return ImageData(width, height, format, buffer, -rowstride)
def decode(self, file, filename):
pixbuf = self._load(file, filename,
gdkpixbuf.gdk_pixbuf_loader_get_pixbuf)
return self._pixbuf_to_image(pixbuf)
def decode_animation(self, file, filename):
# Extract GIF control data. If it's not a GIF, this method will
# raise.
gif_stream = gif.read(file)
delays = [image.delay for image in gif_stream.images]
# Get GDK animation iterator
file.seek(0)
anim = self._load(file, filename,
gdkpixbuf.gdk_pixbuf_loader_get_animation)
time = GTimeVal(0, 0)
iter = gdkpixbuf.gdk_pixbuf_animation_get_iter(anim, byref(time))
frames = []
# Extract each image
for control_delay in delays:
pixbuf = gdkpixbuf.gdk_pixbuf_animation_iter_get_pixbuf(iter)
image = self._pixbuf_to_image(pixbuf)
frames.append(AnimationFrame(image, control_delay))
gdk_delay = gdkpixbuf.gdk_pixbuf_animation_iter_get_delay_time(iter)
gdk_delay *= 1000 # milliseconds to microseconds
# Compare gdk_delay to control_delay for interest only.
#print control_delay, gdk_delay / 1000000.
if gdk_delay == -1:
break
us = time.tv_usec + gdk_delay
time.tv_sec += us // 1000000
time.tv_usec = us % 1000000
gdkpixbuf.gdk_pixbuf_animation_iter_advance(iter, byref(time))
return Animation(frames)
def get_decoders():
return [GdkPixbuf2ImageDecoder()]
def get_encoders():
return []
def init():
gdk.g_type_init()
init()
|