I need some help here, I get "Error loading image" and here is the Image

hi

Where can we download executable for windows?
I only find source code zip file

Hi,
is it possible to export the tile map in the Format of the used color patette? The Images are always saved in 24 bit rgb Format (png, bmp). But if I import an image based on the genesis palette with 16 Colors (4 bit indexed Color) in the way:

File -> Tile Map -> Import Images to Tile Map
Patete Actions -> Generate optimal Palette.. -> dont Change Anything ..
Tile Map Actions -> Toggle True Color Viewing) 24 bit are not nessesary.

the additional Tile Map Export supports only 24 bit rgb mode (png, bmp). Is it possible to Export images in 4 bit indexed Color mode, when 16 Colors are used?

The advantage is you can direct import the Images in sgdk and draw with the optimal color palette.

Maybe ist's easy for you to implement this.

Welcome to Retro graphics Toolkit
Written by Sega16/Nintendo8
Built on Apr 24 2021 15:12:01
Image depth 3
Center 1 0 55
w: 54 h: 95 wt: 56 ht: 96 new tiles: 84
/usr/bin/RetroGraphicsToolkit, line 2: 16716 Segmentation Fault  (core dumped)./RetroGraphicsToolkit

Segmentation fault when try to import png spritesheet.
Spritesheet source: https://www.spriters-resource.com/fullview/118267/

I am trying to use the imageConverter.lua script in the headless examples folder. However, whenever I run the script I get an error "ImageConverter.lua:33: attempt to call a nil value (field 'loadImage')

(I realize this is a support question moreso than an issue, but I can find no other places to contact you about this project. My contact email is in my profile. Please let me know if you are still actively developing this project. Thank you!)

Hi,
I got this error when I try to compile:
make: *** No rules to generate «mdcomp/src/lib/comper.o», needed by «RetroGraphicsToolkit». Stop.

I'm on linux (ubuntu 20.04).

I've modified the makefiles according to the issue about the lua.hpp
#11

What I'm missing?

That is, one colour in every row must be the same (the "background colour"). Is this a currently implemented thing in the quantizer logic? If so, how do I enable it?

Hi,
I'm getting the following issue when compiling on macosx high sierra:

classtilemap.cpp:498:12: error: use of undeclared identifier 'htobe16'
                                                tile=htobe16(tile);//needs to be big endian
                                                     ^
..
2 warnings and 1 error generated.
make: *** [Makefile:22: classtilemap.o] Error 1

More details about my system:

$ xcode-select -v    
xcode-select version 2349.
 
$ g++ --version
Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 9.0.0 (clang-900.0.38)
Target: x86_64-apple-darwin17.3.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

Best regards,

Hello and first of all thanks for this project! I am really looking forward to try it out, however I have issues in compiling it.

I am trying to compile on Linux Mint 20.

I have installed the required dependencies, and at first I tried to run make but I had a fatal error: lua.hpp: No such file or directory error.

I tried modifying the Makefile.common as suggested here #11 (comment) like so (luajit-2.0 -> luajit-2.1):

CFLAGS := -isystem /usr/include/fltk/ -Imdcomp/include/ -IautogeneratedBindings/ -Iluaposix/ext/include -Iluaposix_headers -Iiqa/include -I. -I/usr/include/luajit-2.1 -Ilua-compat-53/c-api -DCOMPAT53_PREFIX=luacompat -c

However I am getting many (.text+0x0): multiple definition of `luaL_prepbuffsize_52'; luaposix/ext/posix/ctype.o (symbol from plugin):(.text+0x0): first defined here type of errors, which I guess ends up in the final collect2: error: ld returned 1 exit status error.

What could be the cause of the issue?

After fixing up all files to use the system Lua 5.2 development files, compilation still fails with FLTK errors. Several enumeration constants are used in several files are not present in the respective files (here is an error log).

While this is likely a packaging issue in Ubuntu, it would be good to not have Retro Graphics Toolkit depend on those as it prevents successful builds.

After compiling successfully on Ubuntu 20.04 and trying to run the executable:

config.lua:35: module 'compat53' not found:
	no field package.preload['compat53']
	no file '/usr/local/share/lua/5.3/compat53.lua'
	no file '/usr/local/share/lua/5.3/compat53/init.lua'
	no file '/usr/local/lib/lua/5.3/compat53.lua'
	no file '/usr/local/lib/lua/5.3/compat53/init.lua'
	no file '/usr/share/lua/5.3/compat53.lua'
	no file '/usr/share/lua/5.3/compat53/init.lua'
	no file './compat53.lua'
	no file './compat53/init.lua'
	no file '/usr/local/lib/lua/5.3/compat53.so'
	no file '/usr/lib/x86_64-linux-gnu/lua/5.3/compat53.so'
	no file '/usr/lib/lua/5.3/compat53.so'
	no file '/usr/local/lib/lua/5.3/loadall.so'
	no file './compat53.so'Lua error while running script
throw was called and the exception is unknown
lua_tostring(): error: attempt to call a nil value
terminate called after throwing an instance of 'int'
Aborted (core dumped)

CFLAGS := -isystem /usr/include/fltk/ -Imdcomp/include/ -IautogeneratedBindings/ -Iluaposix/ext/include -Iluaposix_headers -Iiqa/include -I. -I/usr/include/lua5.3 -Ilua-compat-53/c-api -c

LDFLAGS := -flto=8 -O3 -march=native -fuse-linker-plugin -s -fno-rtti -std=gnu++14 -L/usr/lib/fltk/ -lfltk_images -lfltk -lpng -ljpeg -lXft -lXext -lXinerama -lX11 -lz -s -llua5.3 -ldl

Hallo ComputerNerd,

1. If you dissable the dither function in the Palette Generation Settings or you set the dither power to one the Image conversion leads to black pictures or other artifacts.
2. If you lock a color in the Palette (force first one for transparency) then the same Color appers on a other Position again and the transparence mode of gens Emulator work not correct.
3. Imported Images to use as Tilemap with transperency are not supported

Trying to compile under Ubuntu 18.04

libfltk1.3:
  Installed: 1.3.4-6
  Candidate: 1.3.4-6
  Version table:
 *** 1.3.4-6 500
        500 http://ubuntu.mirrors.tds.net/pub/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status

libboost-all-dev:
  Installed: 1.65.1.0ubuntu1
  Candidate: 1.65.1.0ubuntu1
  Version table:
 *** 1.65.1.0ubuntu1 500
        500 http://ubuntu.mirrors.tds.net/pub/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status

liblua5.3-0:
  Installed: 5.3.3-1ubuntu0.18.04.1
  Candidate: 5.3.3-1ubuntu0.18.04.1
  Version table:
 *** 5.3.3-1ubuntu0.18.04.1 500
        500 http://ubuntu.mirrors.tds.net/pub/ubuntu bionic-security/main amd64 Packages
        500 http://ubuntu.mirrors.tds.net/pub/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     5.3.3-1 500
        500 http://ubuntu.mirrors.tds.net/pub/ubuntu bionic/main amd64 Packages

$ make
g++  -DPACKAGE='"luaposix"' -DVERSION='"RGT"' -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200809L -DHAVE_NET_IF_H=1 -D_DEFAULT_SOURCE -DUSE_IMAGES=1 -isystem /usr/include/fltk/ -Ilua/src -Imdcomp/include/ -IautogeneratedBindings/ -Iluaposix/ext/include -Iluaposix_headers -I. -c -march=native -flto -fuse-linker-plugin -s -O3 -pipe -march=native -fomit-frame-pointer -fno-rtti -std=gnu++14 project.cpp -o project.o
In file included from project.cpp:29:0:
luaconfig.h:18:10: fatal error: lua.hpp: No such file or directory
 #include "lua.hpp"
          ^~~~~~~~~
compilation terminated.
Makefile:22: recipe for target 'project.o' failed
make: *** [project.o] Error 1

Are you sure you want the license to be GPL version 3, and not version 3 or later? Look what happened to Linux for not explicitly including the "or later" part, now it's stuck with version 2 since it's impossible to gather all the copyright holders to update it to version 3.

Hi,
When compiling in macosx high sierra I got:

In file included from project.cpp:17:
./includes.h:25:10: fatal error: 'endian.h' file not found
#include <endian.h>
         ^~~~~~~~~~
1 error generated.
make: *** [Makefile:22: project.o] Error 1

This is solved by doing:

diff --git a/includes.h b/includes.h
index 875ae59..f26c8ab 100644
--- a/includes.h
+++ b/includes.h
@@ -22,7 +22,7 @@
 #include <inttypes.h>
 #include <cmath>
 #ifndef _WIN32
-#include <endian.h>
+#include <machine/endian.h>
 #endif
 #include <FL/Fl.H>
 #include <FL/Fl_Shared_Image.H>

Best regards,

First off, thank you for this program, even if it's not working for me yet. Most similar programs are closed-source Windows one-offs, that are not expandable or supportable; I can't even attempt to compile them or am forced to use a VM for a dinky pixel art program. I am new to development on a mac and I have no desire to use xcode (which may be an issue here?). I use a mac because of the battery life and they're pretty much the standard at my office, but I shy away from apple otherwise.

Trying to build on Mac OSX 10.11.6

• copy lua 5.3.4 into lua directory
• edit makefile src/lua for "CC=clang++" and "-DLUA_COMPAT_5_2" removal
• fltk 1.3.4 is installed via homebrew

make

	clang: warning: optimization flag '-fuse-linker-plugin' is not supported
	clang: warning: argument unused during compilation: '-s'
	In file included from project.cpp:17:
	./includes.h:25:10: fatal error: 'endian.h' file not found

I found a portable endian.h file online that takes care of some errors, like htobe16 definition. It allows further compilation with many warnings...

main.cpp:59:24: error: use of undeclared identifier 'get_current_dir_name'
    const char*olddirname=get_current_dir_name();

I barely know what I'm doing here, just trying to get a successful compilation. After a few minutes research, I find that PATH_MAX & getcwd might work, but it is probably not really correct or at least not recommended.

edit main.cpp

	#ifdef _WIN32
		char olddirname[MAX_PATH];
		getcwd(olddirname,sizeof(olddirname));
	#elif __APPLE__
		char olddirname[PATH_MAX];
		getcwd(olddirname,sizeof(olddirname));
	#else
		const char*olddirname=get_current_dir_name();

Progress though.

runlua.cpp:80:10: fatal error: 'posix.h' file not found

Any suggestions? I feel like I could just be missing something fundamental...