Package: impressive
Version: 0.10.2r-2
Severity: normal
Tags: patch
impressive uses RGB textures with 3 bytes per texel. Unfortunately
impressive does not call glPixelStorei(GL_UNPACK_ALIGNMENT, 1) so opengl
skips bytes at the end of each row when width*3 is not a multiple of 4,
causing a slanted display and sometimes a segfault due to a short read.
A fix is attached.
The bug and fix have been reported upstream.
-- System Information:
Debian Release: 5.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-1-686 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash
Versions of packages impressive depends on:
ii perl 5.10.0-18 Larry Wall's Practical Extraction
ii poppler-utils 0.8.7-1 PDF utilitites (based on libpopple
ii python 2.5.2-3 An interactive high-level object-o
ii python-imaging 1.1.6-3 Python Imaging Library
ii python-opengl 3.0.0~b6-3 Python bindings to OpenGL
ii python-pygame 1.7.1release-4.2 SDL bindings for games development
ii python-support 0.8.4 automated rebuilding support for P
ii xpdf-reader 3.02-1.4 Portable Document Format (PDF) sui
Versions of packages impressive recommends:
ii ghostscript-x 8.62.dfsg.1-3.1 The GPL Ghostscript PostScript/PDF
ii pdftk 1.41-3 useful tool for manipulating PDF d
Versions of packages impressive suggests:
ii latex-beamer 3.07-1 LaTeX class to produce presentatio
-- no debconf information
--- /usr/share/impressive/impressive.py 2008-12-05 21:30:51.000000000 +0100
+++ impressive.py 2009-01-03 20:00:18.000000000 +0100
@@ -3402,6 +3402,7 @@
TexMaxS = ScreenWidth * 1.0 / TexWidth
TexMaxT = ScreenHeight * 1.0 / TexHeight
TexSize = TexWidth * TexHeight * 3
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
# set up some variables
if DAR is not None:
