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path: root/source/fitz/filter-dct.c
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2016-09-14Add scripts to remove/replace 'static' from functions.Robin Watts
Getting a backtrace out with missing functions makes the backtrace much less useful. Some backtrace routines (such as that used by Memento on Android) are incapable of resolving static functions. We therefore provide 2 scripts (scripts/destatic.sh and scripts/restatic.sh) that respectively remove and replace the 'static' from function definitions. The scripts do not affect "static inline" or "static const" definitions, and they are are restricted to working in the source directory (excluding source/tools), thirdparty/mujs and the platform/{java,android} directories. The transformed source should NOT be checked in. To avoid problems with clashing symbols, some functions are renamed or tweaked slightly in this patch.
2016-06-17Use 'size_t' instead of int as appropriate.Robin Watts
This silences the many warnings we get when building for x64 in windows. This does not address any of the warnings we get in thirdparty libraries - in particular harfbuzz. These look (at a quick glance) harmless though.
2016-02-15Drop UNUSED macro -- it dirties the namespace and is not needed.Tor Andersson
We compile with -Wno-unused-parameters instead.
2015-08-20Remove duplicate inclusions of headers.Sebastian Rasmussen
These headers are already included by mupdf/fitz/system.h.
2015-02-17Add ctx parameter and remove embedded contexts for API regularity.Tor Andersson
Purge several embedded contexts: Remove embedded context in fz_output. Remove embedded context in fz_stream. Remove embedded context in fz_device. Remove fz_rebind_stream (since it is no longer necessary). Remove embedded context in svg_device. Remove embedded context in XML parser. Add ctx argument to fz_document functions. Remove embedded context in fz_document. Remove embedded context in pdf_document. Remove embedded context in pdf_obj. Make fz_page independent of fz_document in the interface. We shouldn't need to pass the document to all functions handling a page. If a page is tied to the source document, it's redundant; otherwise it's just pointless. Fix reference counting oddity in fz_new_image_from_pixmap.
2015-02-17Rename fz_close_* and fz_free_* to fz_drop_*.Tor Andersson
Rename fz_close to fz_drop_stream. Rename fz_close_archive to fz_drop_archive. Rename fz_close_output to fz_drop_output. Rename fz_free_* to fz_drop_*. Rename pdf_free_* to pdf_drop_*. Rename xps_free_* to xps_drop_*.
2014-09-08Update test-device to check images piecemeal.Robin Watts
Rather than decoding entire image only to give up after we find the very first pixel is color, add code so that the test-device can treat the image as a stream. This means that (for most image types at least) we can bale out without decoding everything. This reduces the runtime of 3001Pages.pdf from 14 minutes to 18 seconds.
2014-08-19Only include jmemcust.h when building our own libjpeg.Tor Andersson
2014-05-19Add an application agnostic memory handler for libjpegChris Liddell
This adds a custom memory management layer between libjpeg and the calling app - in such a way that the code can be shared between mupdf and Ghostscript/PDL.
2014-03-17Rework fz_streams.Robin Watts
Currently fz_streams have a 4K buffer within their header. The call to read from a stream fills this buffer, resulting in more data being pulled from any underlying stream than we might like. This causes problems with the forthcoming 'leech' filter. Here we simplify the fields available in the public stream header. No specific buffer is given; simply the read and write pointers. The underlying 'read' function is replaced by a 'next' function that makes the next block of data available and returns the first character of it (or EOF). A caller to the 'next' function should supply the maximum number of bytes that it knows it will need (possibly not now, but eventually). This enables the underlying stream to efficiently decode just enough. The underlying stream is free to return fewer, or a greater number if it wants to. The exact size of the 'block' of data returned will depend on the filter in use and (possibly) the data therein. Callers can get the currently available amount of data by calling fz_available (but again should pass the maximum amount of data they know they will need). The only time this will ever return 0 is if we have hit EOF.
2014-01-16disable JPEG decoding speed-ups to prevent artifactsSimon Bünzli
Using JDCT_FASTEST as rendering method can produce visible artifacts (e.g. in 1960_-_DCT_image_wrongly_decoded_regression_from_1.2_.pdf).
2014-01-02Add rebinding for fz_streams.Robin Watts
2013-09-10support jpegtables for TIFF imagesSimon Bünzli
This is required e.g. for 2314 - jpeg tables in tiff.xps. This folds fz_open_resized_dct back into fz_open_dct instead of adding further variations for calls with and without the jpegtables argument.
2013-07-19Initial work on progressive loadingRobin Watts
We are testing this using a new -p flag to mupdf that sets a bitrate at which data will appear to arrive progressively as time goes on. For example: mupdf -p 102400 pdf_reference17.pdf Details of the scheme used here are presented in docs/progressive.txt
2013-06-20Rearrange source files.Tor Andersson