Module ffi.mupdf

MuPDF API

This is a FFI wrapper for what was a Lua-based API in the past Some kind of C wrapper is needed for muPDF since muPDF uses a setjmp/longjmp based approach to error/exception handling.

That's one of the very few things we can't deal with using LuaJIT's FFI.

Functions

openDocument (filename, cache_size) Opens a document.
renderImage (data, size, width, height) Renders image data.
renderImageFile (filename, width, height) Renders image file.
scaleBlitBuffer (bb, width, height) Scales a blitbuffer.


Functions

openDocument (filename, cache_size)
Opens a document.

Parameters:

  • filename
  • cache_size
renderImage (data, size, width, height)
Renders image data.

Parameters:

  • data
  • size
  • width
  • height
renderImageFile (filename, width, height)
Renders image file.

Parameters:

  • filename
  • width
  • height
scaleBlitBuffer (bb, width, height)
Scales a blitbuffer.

Quality of scaling done by MuPDF is better than the one done in blitbuffer.lua (see fzscalepixmap_cached() in mupdf/source/fitz/draw-scale-simple.c). Same arguments as BlitBuffer:scale() for easy replacement.

Parameters:

  • bb
  • width
  • height We need first to convert our BlitBuffer to a pixmap
generated by LDoc 1.4.6 Last updated 2017-10-08 14:57:40