Building on FreeBSD

[peterhil]

These instructions and changes allow to build the project on FreeBSD 13.0-RELEASE-p11.

I tested a few games, and everything seemed to work, including audio.
I could not find where the path to swrast_dri.so is defined, so I just added a note to the README.md about it.

[remi6397]

TIC-80 builds out-of-the-box for me on 13.1-RELEASE without SDLGPU. I have a port for it:

PORTNAME=	tic-80
PORTVERSION=	1.0.2164
DISTVERSIONPREFIX=	v
CATEGORIES=	games

LICENSE=    MIT
COMMENT?=	A fantasy computer for making, playing and sharing tiny games

USES=	cmake

CMAKE_ARGS=	-DBUILD_LIBRETRO:BOOL=false \
	-DBUILD_SDL:BOOL=true \
	-DEXTRA_LDFLAGS=-L/usr/local/lib \
	-DCMAKE_C_FLAGS=-I/usr/local/include

PLIST_FILES=	bin/tic80 share/applications/tic80.desktop share/applications/tic80.xml share/icons/tic80.png

USE_GITHUB=	yes
GH_TUPLE=   cofyc:argparse:0d5f5d0:argparse/vendor/argparse \
	nesbox:blip-buf:330226d:blip_buf/vendor/blip-buf \
	smuehlst:circle-stdlib:fdb3c4a:circle_stdlib/vendor/circle-stdlib \
	tronkko:dirent:c885633:dirent/vendor/dirent \
	svaarala:duktape-releases:28f915a:duktape/vendor/duktape \
	nesbox:giflib:1aa11b0:giflib/vendor/giflib \
	nodejs:http-parser:ec8b5ee:http_parser/vendor/http-parser \
	glennrp:libpng:dbe3e0c:libpng/vendor/libpng \
	libuv:libuv:9c3d692:libuv/vendor/libuv \
	nesbox:lpeg:73d8614:lpeg/vendor/lpeg \
	lua:lua:75ea9cc:lua/vendor/lua \
	nesbox:moonscript:1717928:moonscript/vendor/moonscript \
	mruby:mruby:0f45836:mruby/vendor/mruby \
	grimfang4:sdl-gpu:e3d350b:sdl_gpu/vendor/sdl-gpu \
	libsdl-org:SDL:b424665:sdl2/vendor/sdl2 \
	floooh:sokol:487822d:sokol/vendor/sokol \
	albertodemichelis:squirrel:9dcf74f:squirrel/vendor/squirrel \
	wasm3:wasm3:a3abb3f:wasm3/vendor/wasm3 \
	wren-lang:wren:4a18fc4:wren/vendor/wren \
	kuba--:zip:d7df626:zip/vendor/zip \
	madler:zlib:cacf7f1:zlib/vendor/zlib
GH_ACCOUNT=	nesbox
GH_PROJECT=	TIC-80

OPTIONS_DEFINE=	PRO SDLGPU
OPTIONS_DEFAULT?=	PRO

PRO_DESC=	Build the Pro version
PRO_CMAKE_BOOL=	BUILD_PRO

SDLGPU_DESC=	Build SDLGPU and the CRT shader
SDLGPU_CMAKE_BOOL=	BUILD_SDLGPU

.include <bsd.port.options.mk>

.include <bsd.port.mk>

# Any copyright is dedicated to the Public Domain.
# https://creativecommons.org/publicdomain/zero/1.0/
# vim: set ts=12 sts=12 sw=12 :

As for the DRI, I have no such problems with nVidia drivers, so unless it's something with SDLGPU, something might be wrong with your system.

[peterhil]

As for the DRI, I have no such problems with nVidia drivers, so unless it's something with SDLGPU, something might be wrong with your system.

Well, you add the FreeBSD libs with the port definition, I add them in the CMakeLists.txt. Either approach makes the build work.

Without symlinking the swrast_dri.so from /usr/local/lib/dri/ directory to /usr/local/lib/dri-devel/, I get the error below. So it just uses the wrong directory.

I built Tic-80 with:
cmake .. -DBUILD_PRO=On -DBUILD_PLAYER=On -DBUILD_SDL=On

/usr/home/peterhil/code/games/tic80/src/TIC-80/build/ ./bin/tic80 

 TIC-80 tiny computer
 version 1.0.2159-dev Pro (a611ded)
 https://tic80.com (C) 2017-2022
libGL error: MESA-LOADER: failed to open swrast: Cannot open "/usr/local/lib/dri-devel/swrast_dri.so" (search paths /usr/local/lib/dri-devel, suffix _dri)
libGL error: failed to load driver: swrast
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  151 (GLX)
  Minor opcode of failed request:  3 (X_GLXCreateContext)
  Value in failed request:  0x0
  Serial number of failed request:  163
  Current serial number in output stream:  164

[peterhil]

unless it's something with SDLGPU

Building with:
cmake .. -DBUILD_PRO=On -DBUILD_PLAYER=On -DBUILD_SDL=On -DBUILD_SDLGPU=On

Fails with:

Consolidate compiler generated dependencies of target sdlgpu
[ 48%] Building C object CMakeFiles/sdlgpu.dir/vendor/sdl-gpu/src/renderer_OpenGL_1.c.o
In file included from /usr/home/peterhil/code/games/tic80/src/TIC-80/vendor/sdl-gpu/src/renderer_OpenGL_1.c:1:
In file included from /usr/home/peterhil/code/games/tic80/src/TIC-80/vendor/sdl-gpu/include/SDL_gpu_OpenGL_1.h:14:
/usr/home/peterhil/code/games/tic80/src/TIC-80/vendor/sdl-gpu/src/externals/glew/GL/glew.h:1202:14: fatal error: 'GL/glu.h' file not found
#    include <GL/glu.h>
             ^~~~~~~~~~
1 error generated.
*** [CMakeFiles/sdlgpu.dir/vendor/sdl-gpu/src/renderer_OpenGL_1.c.o] Error code 1

So probably sdl-gpu's CMakeLists.txt would need to be modified in the similar way as I have done here in this pull request...

[peterhil]

Without symlinking the swrast_dri.so from /usr/local/lib/dri/ directory to /usr/local/lib/dri-devel/, I get the error below. So it just uses the wrong directory.

Somebody else on FreeBSD also wondered why swrast_dri.so is missing from dir-devel directory on this Mesa bug #5610.

[joshgoebel]

I have no way to test this but these changes look reasonable.

[remi6397]

In my opinion, it makes no sense to forcefully inject include and link paths, we're not doing this for /usr. That's just not TIC's business. As for the DRI perplexities, I also don't really think that belongs here either.

I'd love to be able to export carts for FreeBSD though, that'd be really welcome. :)