nano-x user program

[Altera_Forum]

Hello all, 

i tryed the nano-x, nanowm, nxview and i would like to write some user programs for nano-x windows. But when i wanted to compile the program from http://www.microwindows.org/programmingintro1.html (sample.c)   #define MWINCLUDECOLORS# include <stdio.h># include "nano-X.h"  int main(int ac,char **av) {  GR_WINDOW_ID w;  GR_EVENT event;   if (GrOpen() < 0) {  printf("Can't open graphics\n");  exit(1);  }   w = GrNewWindow(GR_ROOT_WINDOW_ID, 20, 20, 100, 60,  4, WHITE, BLUE);  GrMapWindow(w);   for (;;) {  GrGetNextEvent(&event);  }  GrClose();  return 0; } ---------------------------------   it finished with error that the compiler dont know the "nano-X.h" and it is true, in ...nios2/toolchain-build/build/nios2/include is not exist. I tryed to copy from /user/microwin/src/include, but this header need some next headers and c. source code.   How is possible to use nano-x api for user programming ? Could you advice me ? I was surprised and i would like to try it :)   Thank you for your answer.   Jan Naceradsky, Czech republic

[Altera_Forum]

I included the program in the uiCLinux/user/ directory tree and did the necessary settings to have it shown in "make menuconfig" (see the Wiki on how to do this.) 

 I successfully used this Makefile:  # Makefile for displaytext application  EXEC = displaytext OBJS = $(EXEC).o SOURCE = $(EXEC).c# LIBADD = -L $(STAGEDIR)/usr/lib INCLUDEDIRS = -I $(STAGEDIR)/usr/include/microwin LDLIBS += -l nano-X LDLIBS += -l pthread  all: $(EXEC) # $(EXEC): $(OBJS) $(EXEC):  @echo ------ "@:" $@  @echo ------ INCLUDEDIRS: $(INCLUDEDIRS)  @echo ------ EXEC: $(EXEC)  @echo ------ OBJS: $(OBJS)  @echo ------ LDFLAGS: $(LDFLAGS)  @echo ------ LDLIBS: $(LDLIBS)  @echo ------ CC: $(CC)  @echo ------ LIBADD: $(LIBADD)  @echo ------ STAGEDIR: $(STAGEDIR)  $(CC) $(LDFLAGS) -o $@ $(SOURCE) $(INCLUDEDIRS) $(LIBADD) $(LDLIBS)  romfs:  $(ROMFSINST) /usr/bin/$(EXEC)  clean:  -rm -f $(EXEC) *.elf *.gdb *.o   -Michael

[Altera_Forum]

Hello, 

thank you for reply, but i am not just familier with make file etc... so i tryed to change some source code in /user/microwin/src/demos/nanox for example i copy the tutorial sample to demo.c and run MAKE, but the demo in romfs/bin was the same ... i found that demo is in  microwin/src/bin and obj file in microwin/src/obj   and the final file in romfs/bin is the same.   How can i force to make again demo from demo.c ? (or any other file - demo2.c, dashdemo.c etc. -  when i set  [*] other demo in menuconfig, i can test in niosII embedded evaluation kit and they run okay :)) )   Thank you very much.   Jan

[Altera_Forum]

Hi Michael, 

i tryed your way ... make new directory /user/displaytext, created displaytext.c and insert to makefile in /user and to Kconfig new lines according to description for add new user application  and use your makefile, but no object file displaytext.o and no displaytext for running in uclinux was created. For me it was be best to change only for example demo2.c and it compile and use in my application.   How can i compile only one file with gcc in /user/microwin/src/demos/nanox/demo2.c ?   Thankyou.   Jan

[Altera_Forum]

I supose "user" is located within your ucLinux-dist directory (besides vendors) and the "Makefile" is in uClinux-dist/user/microwin/src/demos/nanox 

 AFAIR: if the make system is set up correctly:   "make user/microwin/src/demos/nanox"  -Michael

[Altera_Forum]

Hi, 

it looks very simple, but it works for example for cpu />make user/cpu/cpu   it compile cpu okay, but   />make user/microwin/src/demos/nanox make:Nothing to be done for 'user/microwin/src/demos/nanox'.   />make user/microwin/src/demos/nanowm make:Nothing to be done for 'user/microwin/src/demos/nanowm'.   />make user/microwin/src/demos/nanox/demo2 nano-X.h: No such file or directory error ...... ..... Make: Error1   I would need to run or create makefile, where would be set directories well or how to run the all compilation again :(.   Could you advise me ?   Thank you.   Jan

[Altera_Forum]

You do need to create an appropriate Makefile. I did post an example. More examples can be found in the very many subdirectories of "user". 

 For my app I created a directory right below user copntaining the source code and the Makefile.  I updated the main make configuration to make this director<y knwn to include this directory and show it in menuconfig.  Of course you need to have the make system create the nono-X libs by checking the appropriate options with menuconfig.  -Michael

[Altera_Forum]

Hi, 

 finally I created user/displaytext and added it in menuconfig, i run compiler in this directory:   />nios2-linux-uclibc-gcc displaytext.c -o displaytext -I/home/uclinux/nios2-linux/uClinux-dist/user/microwin/src/include -L/home/uclinux/nios2-linux/uClinux-dist/user/microwin/src/lib -lnano-X -lpthread   and it compiled okay to file for running *displaytext   but when i run in altera nios ii embedded evaluation kit (http://www.terasic.com.tw/cgi-bin/page/archive.pl?language=english&categoryno=56&no=372) after  />nano-X & />nanowm & />displaytext &   it made crash system - uclinux finished and i am back from nios-terminal.   When i see to make process, i see that make run nios2-linux-uclibc-gcc .....with -lmwengine -lmwdrivers -lmwfonts -ljpeg -lpthread -lm -lz   and when i try:   />nios2-linux-uclibc-gcc displaytext.c -o displaytext -I/home/uclinux/nios2-linux/uClinux-dist/user/microwin/src/include -L/home/uclinux/nios2-linux/uClinux-dist/user/microwin/src/lib -lmwengine -lmwdrivers -lmwfonts -lphtread -lm -lz  It reports:   /home/uclinux/nios2-linux/toolchain-build/build/nios2/lib/gcc/nios2-linux-uclibc/3.4.6/../../../../nios2-linux-uclibc/bin/ld.real: cannot find -lphtread collect2: ld returned 1 exit status   Now i am not able to continue. I tryed to make all again with this error.   I compiled user/microwin/demos first time only random way, i think. Maybe i with make clean and make erase something important.   I can try again install uclinux and compile again.   I wanted only use nano-x with nxview example.jpg  and after this draw and erase some lines in real time.....   Is any other way to draw/erase lines except use nano-x (lib) ?   Thank you.   Jan     I tryed this links, but it doesnt exist:   http://www.nioswiki.com/operatingsystems/uclinux/framebuffer   -------------------------------- doesnt exist: -------------------- drunken79 (http://forum.niosforum.com/forum/index.php?showuser=6042) posted SDL sources at sdl for nios2 (http://drunken.inter****.com/sdl.tar.gz) look in the file CONFIGURE.NIOS for ./configure options. After compiling, the library is in /src/.libs/ or in the directory you specified with --prefix. Some small example programms from : example sdl programms (http://drunken.inter****.com/examples.tar.gz) And a thread at gmane about uclinux and libsdl : gmane sdl on uclinux (http://comments.gmane.org/gmane.comp.lib.sdl/4795)

[Altera_Forum]

--- Quote Start ---  It reports: /home/uclinux/nios2-linux/toolchain-build/build/nios2/lib/gcc/nios2-linux-uclibc/3.4.6/../../../../nios2-linux-uclibc/bin/ld.real: cannot find -lphtread  --- Quote End ---   If you need a threadded application you can activate the pthread support in menuconfig and/or define your application in the config files to be depending not only on nano-x, but on pthreadlib, too.    --- Quote Start ---  Is any other way to draw/erase lines except use nano-x (lib) ?  --- Quote End ---   (nano-) X is the Linux way to use a graphical display. Everything else would be very non-standard and thus not supported by anybody..    --- Quote Start ---  I tryed this links, but it doesnt exist: http://www.nioswiki.com/operatingsys...ux/framebuffer (http://www.nioswiki.com/operatingsystems/uclinux/framebuffer)  --- Quote End ---  No problem here.  -Michael

[Altera_Forum]

I thought these links:-) 

-------------------------------- doesnt exist: -------------------- drunken79 (http://forum.niosforum.com/forum/index.php?showuser=6042) posted SDL sources at sdl for nios2 (http://drunken.inter****.com/sdl.tar.gz) look in the file CONFIGURE.NIOS for ./configure options. After compiling, the library is in /src/.libs/ or in the directory you specified with --prefix. Some small example programms from : example sdl programms (http://drunken.inter****.com/examples.tar.gz) And a thread at gmane about uclinux and libsdl : gmane sdl on uclinux (http://comments.gmane.org/gmane.comp.lib.sdl/4795) -------------------------------   Jan