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How do i use poppler lib in Qt quick application.

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  • J jsulm
    1 Apr 2021, 11:34

    @NIvil-Wilson Then do

    file /usr/local/lib//libpoppler-qt5.so.1
    
    N Offline
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    NIvil Wilson
    wrote on 3 Apr 2021, 05:40 last edited by
    #14

    @jsulm
    sir,
    the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
    /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

    S 1 Reply Last reply 3 Apr 2021, 06:49
    0
    • S SGaist
      29 Mar 2021, 18:13

      Hi,

      I would avoid putting a library like that built for a different architecture/OS in such a generic path. You should store in an explicit dedicated folder.

      N Offline
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      NIvil Wilson
      wrote on 3 Apr 2021, 05:43 last edited by
      #15

      @SGaist
      sir, i tried that too but the same problem occurs

      1 Reply Last reply
      0
      • N NIvil Wilson
        3 Apr 2021, 05:40

        @jsulm
        sir,
        the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
        /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

        S Offline
        S Offline
        SGaist
        Lifetime Qt Champion
        wrote on 3 Apr 2021, 06:49 last edited by
        #16

        @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

        @jsulm
        sir,
        the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
        /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

        Check that file then.

        Did you ensure that cmake is finding your cross-compiled version and not the one from your system ?

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        N 1 Reply Last reply 15 Apr 2021, 14:58
        0
        • S SGaist
          3 Apr 2021, 06:49

          @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

          @jsulm
          sir,
          the result for the command file /usr/local/lib//libpoppler-qt5.so.1 is
          /usr/local/lib//libpoppler-qt5.so.1: symbolic link to libpoppler-qt5.so.1.27.0

          Check that file then.

          Did you ensure that cmake is finding your cross-compiled version and not the one from your system ?

          N Offline
          N Offline
          NIvil Wilson
          wrote on 15 Apr 2021, 14:58 last edited by
          #17

          @SGaist
          sir,
          yes i ensured that the cmake is finding cross-compiled version and not the one from the system .
          i stored the cross-compiled version in an explicit dedicated folder and the same message appears.
          please help

          1 Reply Last reply
          0
          • S Offline
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            SGaist
            Lifetime Qt Champion
            wrote on 15 Apr 2021, 18:26 last edited by
            #18

            Did you check the architecture of your cross-compiled library ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            N 1 Reply Last reply 18 Apr 2021, 04:50
            0
            • S SGaist
              15 Apr 2021, 18:26

              Did you check the architecture of your cross-compiled library ?

              N Offline
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              NIvil Wilson
              wrote on 18 Apr 2021, 04:50 last edited by
              #19

              @SGaist
              sir ,
              the architecture of cross-compiled library is given below.

              readelf -h libpoppler-qt5.so.1.27.0
              ELF Header:
              Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
              Class: ELF64
              Data: 2's complement, little endian
              Version: 1 (current)
              OS/ABI: UNIX - System V
              ABI Version: 0
              Type: DYN (Shared object file)
              Machine: Advanced Micro Devices X86-64
              Version: 0x1
              Entry point address: 0x334f0
              Start of program headers: 64 (bytes into file)
              Start of section headers: 14323992 (bytes into file)
              Flags: 0x0
              Size of this header: 64 (bytes)
              Size of program headers: 56 (bytes)
              Number of program headers: 11
              Size of section headers: 64 (bytes)
              Number of section headers: 39
              Section header string table index: 38

              1 Reply Last reply
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              • S Offline
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                SGaist
                Lifetime Qt Champion
                wrote on 18 Apr 2021, 07:05 last edited by
                #20

                @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

                Machine: Advanced Micro Devices X86-64

                Is your device running on a x86_64 machine ?

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                N 1 Reply Last reply 18 Apr 2021, 16:09
                0
                • S SGaist
                  18 Apr 2021, 07:05

                  @NIvil-Wilson said in How do i use poppler lib in Qt quick application.:

                  Machine: Advanced Micro Devices X86-64

                  Is your device running on a x86_64 machine ?

                  N Offline
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                  NIvil Wilson
                  wrote on 18 Apr 2021, 16:09 last edited by NIvil Wilson
                  #21

                  @SGaist said in How do i use poppler lib in Qt quick application.:

                  x86_64

                  uname -a
                  Linux nivilwilsonp-desktop 5.8.0-48-generic #54~20.04.1-Ubuntu SMP Sat Mar 20 13:40:25 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

                  1 Reply Last reply
                  0
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                    SGaist
                    Lifetime Qt Champion
                    wrote on 18 Apr 2021, 16:45 last edited by
                    #22

                    Your desktop machine is.

                    I meant the target that runs Android. In any case, if it's ARM, libpoppler was not cross-compiled.

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                    N 1 Reply Last reply 19 Apr 2021, 06:38
                    1
                    • S SGaist
                      18 Apr 2021, 16:45

                      Your desktop machine is.

                      I meant the target that runs Android. In any case, if it's ARM, libpoppler was not cross-compiled.

                      N Offline
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                      NIvil Wilson
                      wrote on 19 Apr 2021, 06:38 last edited by
                      #23

                      @SGaist
                      sir,
                      the target device is ARM.could you give me instructions to cross compile libpoppler for ARM.

                      1 Reply Last reply
                      0
                      • S Offline
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                        SGaist
                        Lifetime Qt Champion
                        wrote on 19 Apr 2021, 19:55 last edited by
                        #24

                        What did you do to build poppler until now ?

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                        N 1 Reply Last reply 20 Apr 2021, 07:52
                        0
                        • S SGaist
                          19 Apr 2021, 19:55

                          What did you do to build poppler until now ?

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                          NIvil Wilson
                          wrote on 20 Apr 2021, 07:52 last edited by
                          #25

                          @SGaist
                          sir,
                          i used the settings given below to cross compile poppler library

                          if(NOT DEFINED CMAKE_CROSSCOMPILING)
                          set(CMAKE_CROSSCOMPILING "TRUE")
                          endif()

                          set(CMAKE_SYSTEM_NAME Android)
                          set(CMAKE_SYSTEM_VERSION 21) # API level
                          set(CMAKE_ANDROID_ARCH_ABI arm64-v8a)
                          set(CMAKE_ANDROID_NDK /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147)
                          set(CMAKE_ANDROID_STL_TYPE c++_shared)

                          1 Reply Last reply
                          0
                          • S Offline
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                            SGaist
                            Lifetime Qt Champion
                            wrote on 20 Apr 2021, 19:00 last edited by
                            #26

                            You might want to check here for how they build it for Androïd.

                            Interested in AI ? www.idiap.ch
                            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                            N 1 Reply Last reply 8 May 2021, 11:44
                            1
                            • S SGaist
                              20 Apr 2021, 19:00

                              You might want to check here for how they build it for Androïd.

                              N Offline
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                              NIvil Wilson
                              wrote on 8 May 2021, 11:44 last edited by NIvil Wilson 5 Aug 2021, 11:47
                              #27

                              @SGaist
                              sir, i tried to compile poppler for android arm64-v8a but it always compiled to "x86_64".

                              1 Reply Last reply
                              0
                              • S Offline
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                                SGaist
                                Lifetime Qt Champion
                                wrote on 8 May 2021, 18:53 last edited by
                                #28

                                Did you follow the example I linked ?

                                Interested in AI ? www.idiap.ch
                                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                N 1 Reply Last reply 10 May 2021, 10:24
                                0
                                • S SGaist
                                  8 May 2021, 18:53

                                  Did you follow the example I linked ?

                                  N Offline
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                                  NIvil Wilson
                                  wrote on 10 May 2021, 10:24 last edited by
                                  #29

                                  @SGaist
                                  sir, i tried it many times .i changed the architecture and tried many times but it only compile to x86_64 architecture only.I think this is related to configuration mistake that i made cmake compilation process. sorry for my bad english .google translate help me very much these days.

                                  1 Reply Last reply
                                  0
                                  • S Offline
                                    S Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on 10 May 2021, 20:18 last edited by
                                    #30

                                    What did you do exactly for your latest try ?

                                    Interested in AI ? www.idiap.ch
                                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    N 1 Reply Last reply 11 Jun 2021, 12:52
                                    0
                                    • S SGaist
                                      10 May 2021, 20:18

                                      What did you do exactly for your latest try ?

                                      N Offline
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                                      NIvil Wilson
                                      wrote on 11 Jun 2021, 12:52 last edited by
                                      #31

                                      @SGaist
                                      sir, i couldnt understant this line " CFLAGS=-std=gnu99 STANDALONE_EXTRA="--arch arm64" /opt/helpers/build-standalone " which is in the link you given click here

                                      Screenshot from 2021-06-11 18-01-59.png

                                      1 Reply Last reply
                                      0
                                      • S Offline
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                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on 11 Jun 2021, 19:05 last edited by
                                        #32

                                        The line contains the instructions to configure, build and install freetype for Android..

                                        Interested in AI ? www.idiap.ch
                                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                        N 1 Reply Last reply 12 Jun 2021, 08:42
                                        0
                                        • S SGaist
                                          11 Jun 2021, 19:05

                                          The line contains the instructions to configure, build and install freetype for Android..

                                          N Offline
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                                          NIvil Wilson
                                          wrote on 12 Jun 2021, 08:42 last edited by NIvil Wilson 6 Dec 2021, 10:42
                                          #33

                                          @SGaist
                                          sir,

                                          Screenshot from 2021-06-12 14-10-50.png

                                          cmake -G Ninja .. -DCMAKE_TOOLCHAIN_FILE=~/Desktop/c++/poppler-21.06.1/build.cmake

                                          contents of CMakeError.log

                                          Determining if the function fseek64 exists failed with the following output:
                                          Change Dir: /home/nivilwilsonp/Desktop/c++/poppler-21.06.1/build/CMakeFiles/CMakeTmp

                                          Run Build Command(s):/usr/bin/ninja cmTC_8bd25 && [1/2] Building C object CMakeFiles/cmTC_8bd25.dir/CheckFunctionExists.c.o
                                          [2/2] Linking C executable cmTC_8bd25
                                          FAILED: cmTC_8bd25
                                          : && /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --target=aarch64-none-linux-android21 -Wall -std=c99 -D_DEFAULT_SOURCE -DCHECK_FUNCTION_EXISTS=fseek64 -g -funwind-tables -no-canonical-prefixes -fexceptions -fPIE -pie -Wl,--gc-sections CMakeFiles/cmTC_8bd25.dir/CheckFunctionExists.c.o -o cmTC_8bd25 -latomic -lm && :
                                          CMakeFiles/cmTC_8bd25.dir/CheckFunctionExists.c.o: In function main': /usr/share/cmake-3.16/Modules/CheckFunctionExists.c:17: undefined reference to fseek64'
                                          clang: error: linker command failed with exit code 1 (use -v to see invocation)
                                          ninja: build stopped: subcommand failed.

                                          Determining if the function ftell64 exists failed with the following output:
                                          Change Dir: /home/nivilwilsonp/Desktop/c++/poppler-21.06.1/build/CMakeFiles/CMakeTmp

                                          Run Build Command(s):/usr/bin/ninja cmTC_5f037 && [1/2] Building C object CMakeFiles/cmTC_5f037.dir/CheckFunctionExists.c.o
                                          [2/2] Linking C executable cmTC_5f037
                                          FAILED: cmTC_5f037
                                          : && /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --target=aarch64-none-linux-android21 -Wall -std=c99 -D_DEFAULT_SOURCE -DCHECK_FUNCTION_EXISTS=ftell64 -g -funwind-tables -no-canonical-prefixes -fexceptions -fPIE -pie -Wl,--gc-sections CMakeFiles/cmTC_5f037.dir/CheckFunctionExists.c.o -o cmTC_5f037 -latomic -lm && :
                                          CMakeFiles/cmTC_5f037.dir/CheckFunctionExists.c.o: In function main': /usr/share/cmake-3.16/Modules/CheckFunctionExists.c:17: undefined reference to ftell64'
                                          clang: error: linker command failed with exit code 1 (use -v to see invocation)
                                          ninja: build stopped: subcommand failed.

                                          Performing C SOURCE FILE Test HAVE_NDIR_H failed with the following output:
                                          Change Dir: /home/nivilwilsonp/Desktop/c++/poppler-21.06.1/build/CMakeFiles/CMakeTmp

                                          Run Build Command(s):/usr/bin/ninja cmTC_53db5 && [1/2] Building C object CMakeFiles/cmTC_53db5.dir/src.c.o
                                          FAILED: CMakeFiles/cmTC_53db5.dir/src.c.o
                                          /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --target=aarch64-none-linux-android21 -Wall -std=c99 -D_DEFAULT_SOURCE -DHAVE_NDIR_H -g -funwind-tables -no-canonical-prefixes -fexceptions -o CMakeFiles/cmTC_53db5.dir/src.c.o -c src.c
                                          src.c:1:10: fatal error: 'ndir.h' file not found
                                          #include <ndir.h>
                                          ^~~~~~~~
                                          1 error generated.
                                          ninja: build stopped: subcommand failed.

                                          Source file was:
                                          #include <ndir.h>

                                          int main(int argc, char argv[])
                                          {
                                          DIR
                                          d = 0;
                                          return 0;
                                          }

                                          Performing C SOURCE FILE Test HAVE_SYS_DIR_H failed with the following output:
                                          Change Dir: /home/nivilwilsonp/Desktop/c++/poppler-21.06.1/build/CMakeFiles/CMakeTmp

                                          Run Build Command(s):/usr/bin/ninja cmTC_4a64d && [1/2] Building C object CMakeFiles/cmTC_4a64d.dir/src.c.o
                                          FAILED: CMakeFiles/cmTC_4a64d.dir/src.c.o
                                          /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --target=aarch64-none-linux-android21 -Wall -std=c99 -D_DEFAULT_SOURCE -DHAVE_SYS_DIR_H -g -funwind-tables -no-canonical-prefixes -fexceptions -o CMakeFiles/cmTC_4a64d.dir/src.c.o -c src.c
                                          src.c:1:10: fatal error: 'sys/dir.h' file not found
                                          #include <sys/dir.h>
                                          ^~~~~~~~~~~
                                          1 error generated.
                                          ninja: build stopped: subcommand failed.

                                          Source file was:
                                          #include <sys/dir.h>

                                          int main(int argc, char argv[])
                                          {
                                          DIR
                                          d = 0;
                                          return 0;
                                          }

                                          Performing C SOURCE FILE Test HAVE_SYS_NDIR_H failed with the following output:
                                          Change Dir: /home/nivilwilsonp/Desktop/c++/poppler-21.06.1/build/CMakeFiles/CMakeTmp

                                          Run Build Command(s):/usr/bin/ninja cmTC_5a9f7 && [1/2] Building C object CMakeFiles/cmTC_5a9f7.dir/src.c.o
                                          FAILED: CMakeFiles/cmTC_5a9f7.dir/src.c.o
                                          /home/nivilwilsonp/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --target=aarch64-none-linux-android21 -Wall -std=c99 -D_DEFAULT_SOURCE -DHAVE_SYS_NDIR_H -g -funwind-tables -no-canonical-prefixes -fexceptions -o CMakeFiles/cmTC_5a9f7.dir/src.c.o -c src.c
                                          src.c:1:10: fatal error: 'sys/ndir.h' file not found
                                          #include <sys/ndir.h>
                                          ^~~~~~~~~~~~
                                          1 error generated.
                                          ninja: build stopped: subcommand failed.

                                          Source file was:
                                          #include <sys/ndir.h>

                                          int main(int argc, char argv[])
                                          {
                                          DIR
                                          d = 0;
                                          return 0;
                                          }

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