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make
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10012   -c -o pdf_document.o pdf_document.cpp
pdf_document.cpp: In member function ‘virtual void PDFDocument::Render(Document::PixelWriter*, int, float, int)’:
pdf_document.cpp:162:56: error: invalid conversion from ‘int’ to ‘fz_separations* {aka fz_separations_s*}’ [-fpermissive]
       _fz_context, fz_device_rgb(_fz_context), &bbox, 1);
                                                        ^
pdf_document.cpp:162:56: error: too few arguments to function ‘fz_pixmap* fz_new_pixmap_with_bbox(fz_context*, fz_colorspace*, const fz_irect*, fz_separations*, int)’
In file included from /usr/include/mupdf/fitz.h:35:0,
                 from /usr/include/mupdf/pdf.h:4,
                 from pdf_document.cpp:29:
/usr/include/mupdf/fitz/pixmap.h:86:12: note: declared here
 fz_pixmap *fz_new_pixmap_with_bbox(fz_context *ctx, fz_colorspace *colorspace, const fz_irect *bbox, fz_separations *seps, int alpha);
            ^~~~~~~~~~~~~~~~~~~~~~~
pdf_document.cpp: In member function ‘std::__cxx11::string PDFDocument::GetPageText(int, int)’:
pdf_document.cpp:231:3: error: ‘fz_stext_sheet’ was not declared in this scope
   fz_stext_sheet* text_sheet = fz_new_stext_sheet(_fz_context);
   ^~~~~~~~~~~~~~
pdf_document.cpp:231:3: note: suggested alternative: ‘fz_stext_page’
   fz_stext_sheet* text_sheet = fz_new_stext_sheet(_fz_context);
   ^~~~~~~~~~~~~~
   fz_stext_page
pdf_document.cpp:231:19: error: ‘text_sheet’ was not declared in this scope
   fz_stext_sheet* text_sheet = fz_new_stext_sheet(_fz_context);
                   ^~~~~~~~~~
pdf_document.cpp:231:32: error: ‘fz_new_stext_sheet’ was not declared in this scope
   fz_stext_sheet* text_sheet = fz_new_stext_sheet(_fz_context);
                                ^~~~~~~~~~~~~~~~~~
pdf_document.cpp:231:32: note: suggested alternative: ‘fz_new_stext_page’
   fz_stext_sheet* text_sheet = fz_new_stext_sheet(_fz_context);
                                ^~~~~~~~~~~~~~~~~~
                                fz_new_stext_page
pdf_document.cpp:258:8: error: ‘fz_page_block’ was not declared in this scope
   for (fz_page_block* page_block = text_page->blocks;
        ^~~~~~~~~~~~~
pdf_document.cpp:258:8: note: suggested alternative: ‘fz_page_s’
   for (fz_page_block* page_block = text_page->blocks;
        ^~~~~~~~~~~~~
        fz_page_s
pdf_document.cpp:258:23: error: ‘page_block’ was not declared in this scope
   for (fz_page_block* page_block = text_page->blocks;
                       ^~~~~~~~~~
pdf_document.cpp:258:23: note: suggested alternative: ‘page_struct’
   for (fz_page_block* page_block = text_page->blocks;
                       ^~~~~~~~~~
                       page_struct
pdf_document.cpp:258:47: error: ‘fz_stext_page {aka struct fz_stext_page_s}’ has no member named ‘blocks’
   for (fz_page_block* page_block = text_page->blocks;
                                               ^~~~~~
pdf_document.cpp:259:32: error: ‘fz_stext_page {aka struct fz_stext_page_s}’ has no member named ‘blocks’
        page_block < text_page->blocks + text_page->len;
                                ^~~~~~
pdf_document.cpp:259:52: error: ‘fz_stext_page {aka struct fz_stext_page_s}’ has no member named ‘len’
        page_block < text_page->blocks + text_page->len;
                                                    ^~~
pdf_document.cpp:262:29: error: ‘FZ_PAGE_BLOCK_TEXT’ was not declared in this scope
     if (page_block->type != FZ_PAGE_BLOCK_TEXT) {
                             ^~~~~~~~~~~~~~~~~~
pdf_document.cpp:262:29: note: suggested alternative: ‘FZ_STEXT_BLOCK_TEXT’
     if (page_block->type != FZ_PAGE_BLOCK_TEXT) {
                             ^~~~~~~~~~~~~~~~~~
                             FZ_STEXT_BLOCK_TEXT
pdf_document.cpp:267:49: error: ‘fz_stext_block {aka struct fz_stext_block_s}’ has no member named ‘lines’
     for (fz_stext_line* text_line = text_block->lines;
                                                 ^~~~~
pdf_document.cpp:268:34: error: ‘fz_stext_block {aka struct fz_stext_block_s}’ has no member named ‘lines’
          text_line < text_block->lines + text_block->len;
                                  ^~~~~
pdf_document.cpp:268:54: error: ‘fz_stext_block {aka struct fz_stext_block_s}’ has no member named ‘len’
          text_line < text_block->lines + text_block->len;
                                                      ^~~
pdf_document.cpp:271:12: error: ‘fz_stext_span’ was not declared in this scope
       for (fz_stext_span* text_span = text_line->first_span;
            ^~~~~~~~~~~~~
pdf_document.cpp:271:12: note: suggested alternative: ‘fz_text_span’
       for (fz_stext_span* text_span = text_line->first_span;
            ^~~~~~~~~~~~~
            fz_text_span
pdf_document.cpp:271:27: error: ‘text_span’ was not declared in this scope
       for (fz_stext_span* text_span = text_line->first_span;
                           ^~~~~~~~~
pdf_document.cpp:271:27: note: suggested alternative: ‘fz_text_span’
       for (fz_stext_span* text_span = text_line->first_span;
                           ^~~~~~~~~
                           fz_text_span
pdf_document.cpp:271:50: error: ‘fz_stext_line {aka struct fz_stext_line_s}’ has no member named ‘first_span’; did you mean ‘first_char’?
       for (fz_stext_span* text_span = text_line->first_span;
                                                  ^~~~~~~~~~
                                                  first_char
pdf_document.cpp:293:3: error: ‘fz_drop_stext_sheet’ was not declared in this scope
   fz_drop_stext_sheet(_fz_context, text_sheet);
   ^~~~~~~~~~~~~~~~~~~
pdf_document.cpp:293:3: note: suggested alternative: ‘fz_drop_stext_page’
   fz_drop_stext_sheet(_fz_context, text_sheet);
   ^~~~~~~~~~~~~~~~~~~
   fz_drop_stext_page
make: *** [<builtin>: pdf_document.o] Error 1

  $ jfbview *.jpg
Please specify exactly one input file. Try "-h" for help.

    $ jfbview *.pdf
Please specify exactly one input file. Try "-h" for help.

    $ ls ./some_folder/
some_picture.jpg

    $ jfbview some_folder/
error: read error: Is a directory
error: cannot recognize version marker
error: read error: Is a directory
error: read error: Is a directory
error: cannot tell in file
Failed to open document "some_folder/".

    $ ls ./some_folder/
some_picture.jpg  another_picture.jpg

    $ jfbview some_folder/*.jpg
Please specify exactly one input file. Try "-h" for help.

    $ jfbview some_folder/
error: read error: Is a directory
error: cannot recognize version marker
error: read error: Is a directory
error: read error: Is a directory
error: cannot tell in file
Failed to open document "some_folder/".

pictures/
├── 2020
│   ├── family
│   ├── vacation
│   └── work
├── 2021
│   ├── family
│   ├── vacation
│   └── work
└── 2022
    ├── family
    ├── vacation
    └── work

   -r     Search the given directories recursively for images to view.

-r, --recursive
         Recursively expand any directories in the command line arguments to the content of those directo‐
         ries, all the way down to the bottom level.

g++ -std=c++1y -Wall -O2   -c -o pdf_document.o pdf_document.cpp
pdf_document.cpp: In static member function ‘static PDFDocument* PDFDocument::Open(const string&, int)’:
pdf_document.cpp:54:51: error: ‘pdf_close_document’ was not declared in this scope
       pdf_close_document(context, raw_pdf_document);
                                                   ^
pdf_document.cpp: In destructor ‘virtual PDFDocument::~PDFDocument()’:
pdf_document.cpp:76:48: error: ‘pdf_close_document’ was not declared in this scope
   pdf_close_document(_fz_context, _pdf_document);
                                                ^
pdf_document.cpp: In member function ‘std::__cxx11::string PDFDocument::GetPageText(int, int)’:
pdf_document.cpp:172:3: error: ‘fz_text_sheet’ was not declared in this scope
   fz_text_sheet* text_sheet = fz_new_text_sheet(_fz_context);
   ^
pdf_document.cpp:172:18: error: ‘text_sheet’ was not declared in this scope
   fz_text_sheet* text_sheet = fz_new_text_sheet(_fz_context);
                  ^
pdf_document.cpp:172:60: error: ‘fz_new_text_sheet’ was not declared in this scope
   fz_text_sheet* text_sheet = fz_new_text_sheet(_fz_context);
                                                            ^
pdf_document.cpp:173:3: error: ‘fz_text_page’ was not declared in this scope
   fz_text_page* text_page = fz_new_text_page(_fz_context);
   ^
pdf_document.cpp:173:17: error: ‘text_page’ was not declared in this scope
   fz_text_page* text_page = fz_new_text_page(_fz_context);
                 ^
pdf_document.cpp:173:57: error: ‘fz_new_text_page’ was not declared in this scope
   fz_text_page* text_page = fz_new_text_page(_fz_context);
                                                         ^
pdf_document.cpp:174:73: error: ‘fz_new_text_device’ was not declared in this scope
   fz_device* dev = fz_new_text_device(_fz_context, text_sheet, text_page);
                                                                         ^
pdf_document.cpp:180:66: error: ‘fz_begin_page’ was not declared in this scope
   fz_begin_page(_fz_context, dev, &fz_infinite_rect, &fz_identity);
                                                                  ^
pdf_document.cpp:183:31: error: ‘fz_end_page’ was not declared in this scope
   fz_end_page(_fz_context, dev);
                               ^
pdf_document.cpp:194:5: error: ‘fz_text_block’ was not declared in this scope
     fz_text_block* const text_block = page_block->u.text;
     ^
pdf_document.cpp:194:20: error: expected primary-expression before ‘const’
     fz_text_block* const text_block = page_block->u.text;
                    ^
In file included from /usr/include/c++/5.3.0/cassert:43:0,
                 from cache.hpp:27,
                 from pdf_document.hpp:29,
                 from pdf_document.cpp:31:
pdf_document.cpp:195:12: error: ‘text_block’ was not declared in this scope
     assert(text_block != nullptr);
            ^
pdf_document.cpp:196:10: error: ‘fz_text_line’ was not declared in this scope
     for (fz_text_line* text_line = text_block->lines;
          ^
pdf_document.cpp:196:24: error: ‘text_line’ was not declared in this scope
     for (fz_text_line* text_line = text_block->lines;
                        ^
pdf_document.cpp:204:36: error: ‘fz_text_span {aka struct fz_text_span_s}’ has no member named ‘text’
           const int c = text_span->text[i].c;
                                    ^
pdf_document.cpp:222:43: error: ‘fz_drop_text_page’ was not declared in this scope
   fz_drop_text_page(_fz_context, text_page);
                                           ^
pdf_document.cpp:223:45: error: ‘fz_drop_text_sheet’ was not declared in this scope
   fz_drop_text_sheet(_fz_context, text_sheet);
                                             ^
<builtin>: recipe for target 'pdf_document.o' failed
make: *** [pdf_document.o] Error 1

g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10014   -c -o pdf_document.o pdf_document.cpp                                                pdf_document.cpp: In member function ‘virtual void PDFDocument::Render(Document::PixelWriter*, int, float, int)’:
pdf_document.cpp:169:48: error: could not convert ‘& bbox’ from ‘const fz_irect*’ {aka ‘const fz_irect_s*’} to ‘fz_irect’ {aka ‘fz_irect_s’}
       _fz_context, fz_device_rgb(_fz_context), &bbox, nullptr, 1);                                                                                                                   ^~~~~
pdf_document.cpp:170:52: error: could not convert ‘& fz_identity’ from ‘const fz_matrix*’ {aka ‘const fz_matrix_s*’} to ‘fz_matrix’ {aka ‘fz_matrix_s’}
   fz_device* dev = fz_new_draw_device(_fz_context, &fz_identity, pixmap);                                                                                                                ^~~~~~~~~~~~
pdf_document.cpp:174:62: error: could not convert ‘& m’ from ‘const fz_matrix*’ {aka ‘const fz_matrix_s*’} to ‘fz_matrix’ {aka ‘fz_matrix_s’}
pdf_document.cpp:51:47:
        pdf_run_page((context), (page), (dev), (matrix), (cookie))
                                               ~~~~~~~~
pdf_document.cpp:174:62:
   pdf_run_page(_fz_context, _pdf_document, page_struct, dev, &m, nullptr);
pdf_document.cpp:51:48: note: in definition of macro ‘pdf_run_page’
        pdf_run_page((context), (page), (dev), (matrix), (cookie))
                                                ^~~~~~
pdf_document.cpp: In member function ‘fz_matrix PDFDocument::Transform(float, int)’:
pdf_document.cpp:410:12: error: cannot convert ‘fz_matrix*’ {aka ‘fz_matrix_s*’} to ‘float’
   fz_scale(&scale_matrix, zoom, zoom);
            ^~~~~~~~~~~~~
In file included from /usr/include/mupdf/fitz/context.h:6,
                 from /usr/include/mupdf/fitz.h:11,
                 from /usr/include/mupdf/pdf.h:4,
                 from pdf_document.cpp:29:
/usr/include/mupdf/fitz/geometry.h:305:26: note:   initializing argument 1 of ‘fz_matrix fz_scale(float, float)’
 fz_matrix fz_scale(float sx, float sy);
                    ~~~~~~^~
pdf_document.cpp:411:13: error: cannot convert ‘fz_matrix*’ {aka ‘fz_matrix_s*’} to ‘float’
   fz_rotate(&rotate_matrix, rotation);
             ^~~~~~~~~~~~~~
In file included from /usr/include/mupdf/fitz/context.h:6,
                 from /usr/include/mupdf/fitz.h:11,
                 from /usr/include/mupdf/pdf.h:4,
                 from pdf_document.cpp:29:
/usr/include/mupdf/fitz/geometry.h:374:27: note:   initializing argument 1 of ‘fz_matrix fz_rotate(float)’
 fz_matrix fz_rotate(float degrees);                                                                                                                       ~~~~~~^~~~~~~
pdf_document.cpp:412:13: error: could not convert ‘& transformation_matrix’ from ‘fz_matrix*’ {aka ‘fz_matrix_s*’} to ‘fz_matrix’ {aka ‘fz_matrix_s’}
   fz_concat(&transformation_matrix, &scale_matrix, & rotate_matrix);
             ^~~~~~~~~~~~~~~~~~~~~~
pdf_document.cpp: In member function ‘fz_irect PDFDocument::GetBoundingBox(pdf_page*, const fz_matrix&)’:
pdf_document.cpp:53:48: error: too many arguments to function ‘fz_rect pdf_bound_page(fz_context*, pdf_page*)’
        pdf_bound_page((context), (page), (bbox))
                                                ^
pdf_document.cpp:422:7: note: in expansion of macro ‘pdf_bound_page’
       pdf_bound_page(_fz_context, _pdf_document, page_struct, &bbox), &m));
       ^~~~~~~~~~~~~~
In file included from /usr/include/mupdf/pdf.h:16,
                 from pdf_document.cpp:29:
/usr/include/mupdf/pdf/page.h:61:9: note: declared here
 fz_rect pdf_bound_page(fz_context *ctx, pdf_page *page);                                                                                      ^~~~~~~~~~~~~~
pdf_document.cpp:422:71: error: could not convert ‘& m’ from ‘const fz_matrix*’ {aka ‘const fz_matrix_s*’} to ‘fz_matrix’ {aka ‘fz_matrix_s’}
       pdf_bound_page(_fz_context, _pdf_document, page_struct, &bbox), &m));
                                                                       ^~
make: *** [<builtin>: pdf_document.o] Error 1

#!/bin/bash

#
# fbdjview --- View DjVu files on Linux framebuffer console
# By Tigran Aivazian, v1.0, 29 December 2017
# License: GPLv3
#
# Pre-requisites:  fbi and ddjvu (Run "sudo apt install fbi djvulibre-bin" to install on Ubuntu)
#

if [ $# -ne 1 ] ; then
    echo "Usage: fbdjview file.djvu"
    exit 1
fi

if [ ! -f "$1" ] ; then
    echo "fbdjview: No such file \"$1\""
    exit 2
fi

md5=$(md5sum "$1" | cut -d' ' -f1)

cachedir=~/.cache/fbdjview/$md5

function cleanup() {
   echo "Cleaning up $cachedir"
   rm -rf $cachedir
   exit
}

trap cleanup SIGINT

if [ ! -d $cachedir ] ; then
    mkdir -p $cachedir
    echo -n "Please wait, generating cache in $cachedir ..."
    ddjvu -eachpage -scale=150 -format=tiff "$1" $cachedir/page%04d.tif || cleanup
fi

fbi -a $cachedir/page*.tif

make
g++ -Wall -O2 -std=c++1y -o mupdf_version mupdf_version.cpp  -lmupdf

=============================
Detected configuration:

MUPDF_VERSION = 10011
OPENJP2 = openjp2
=============================

make[1]: Entering directory '/home/colin/src/JFBView'
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o command.o command.cpp
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o document.o document.cpp
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o framebuffer.o framebuffer.cpp
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o image_document.o image_document.cpp
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o multithreading.o multithreading.cpp
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o outline_view.o outline_view.cpp
g++ -Wall -O2 -std=c++1y -DMUPDF_VERSION=10011   -c -o pdf_document.o pdf_document.cpp
pdf_document.cpp: In member function ‘virtual void PDFDocument::PDFPageCache::Discard(const int&, pdf_page* const&)’:
pdf_document.cpp:55:8: error: ‘pdf_drop_page’ was not declared in this scope
        pdf_drop_page((context), (page))
        ^
pdf_document.cpp:360:3: note: in expansion of macro ‘pdf_drop_page’
   pdf_drop_page(_parent->_fz_context, _parent->_pdf_document, page_struct);
   ^~~~~~~~~~~~~
pdf_document.cpp:55:8: note: suggested alternative: ‘pdf_run_page’
        pdf_drop_page((context), (page))
        ^
pdf_document.cpp:360:3: note: in expansion of macro ‘pdf_drop_page’
   pdf_drop_page(_parent->_fz_context, _parent->_pdf_document, page_struct);
   ^~~~~~~~~~~~~
make[1]: *** [<builtin>: pdf_document.o] Error 1
make[1]: Leaving directory '/home/colin/src/JFBView'
make: *** [Makefile:119: all] Error 2