mirror of
https://github.com/koreader/koreader
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87 lines
2.6 KiB
Markdown
87 lines
2.6 KiB
Markdown
KindlePDFViewer
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===============
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This is a PDF viewer application, created for usage on the Kindle e-ink reader.
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It is currently restricted to 4bpp inverse grayscale displays. It's using the
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muPDF library (see http://mupdf.com/) and its UI is scripted using Lua (see
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http://www.lua.org/).
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The application is licensed under the GPLv3 (see COPYING file).
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Building
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========
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Follow these steps:
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* fetch thirdparty sources
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* manually fetch all the thirdparty sources:
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* install muPDF sources into subfolder "mupdf"
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* install muPDF third-party sources (see muPDF homepage) into a new
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subfolder "mupdf/thirdparty"
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* install libDjvuLibre sources into subfolder "djvulibre"
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* install CREngine sources into subfolder "kpvcrlib/crengine"
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* install LuaJit sources into subfolder "luajit-2.0"
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* install popen_noshell sources into subfolder "popen-noshell"
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* automatically fetch thirdparty sources with Makefile:
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* make sure you have patch, wget, unzip, git and svn installed
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* run `make fetchthirdparty`.
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* adapt Makefile to your needs
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* run `make thirdparty`. This will build MuPDF (plus the libraries it depends
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on), libDjvuLibre, CREngine and Lua.
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* run `make`. This will build the kpdfview application
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Running
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=======
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The user interface (or what's there yet) is scripted in Lua. See "reader.lua".
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It uses the Linux feature to run scripts by using a corresponding line at its
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start.
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So you might just call that script. Note that the script and the kpdfview
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binary currently must be in the same directory.
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You would then just call reader.lua, giving the document file path, or any
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directory path, as its first argument. Run reader.lua without arguments to see
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usage notes. The reader.lua script can also show a file chooser: it will do
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this when you call it with a directory (instead of a file) as first argument.
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Device emulation
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================
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The code also features a device emulation. You need SDL headers and library
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for this. It allows to develop on a standard PC and saves precious development
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time. It might also compose the most unfriendly desktop PDF reader, depending
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on your view.
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If you are using Ubuntu, simply install `libsdl-dev1.2` package.
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To build in "emulation mode", you need to run make like this:
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make clean cleanthirdparty
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EMULATE_READER=1 make thirdparty kpdfview
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And run the emulator like this:
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```
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./reader.lua /PATH/TO/PDF.pdf
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```
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or:
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```
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./reader.lua /ANY/PATH
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```
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By default emulation will provide DXG resolution of 824*1200. It can be
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specified at compile time, this is example for Kindle 3:
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```
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EMULATE_READER_W=600 EMULATE_READER_H=800 EMULATE_READER=1 make kpdfview
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```
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