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Wolfenstein 3-D!

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This is a port of Wolf4SDL, which is derived from the original id
software source release. The port runs on top of the SDL plugin
runtime and is loaded as an overlay.

Licensing of the game code is not an issue, as discussed below
(essentially, the Debian project treats Wolf4SDL as GPLv2, with an
email from John Carmack backing it up):

  http://forums.rockbox.org/index.php?topic=52872

Included is a copy of MAME's Yamaha OPL sound chip emulator
(fmopl_gpl.c).  This file was not part of the original Wolf4SDL source
(which includes a non-GPL'd version), but was rather rebased from from
a later MAME source which had been relicensed to GPLv2.

Change-Id: I64c2ba035e0be7e2f49252f40640641416613439
This commit is contained in:
Franklin Wei 2019-07-07 22:00:20 -04:00
parent 439a0d1d91
commit 3f59fc8b77
68 changed files with 44163 additions and 4 deletions
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29
apps/plugins/sdl/sdl.make
View file

@ -12,12 +12,14 @@ SDL_OBJDIR := $(BUILDDIR)/apps/plugins/sdl
SDL_SRC := $(call preprocess, $(SDL_SRCDIR)/SOURCES)
DUKE3D_SRC := $(call preprocess, $(SDL_SRCDIR)/SOURCES.duke)
WOLF3D_SRC := $(call preprocess, $(SDL_SRCDIR)/SOURCES.wolf)
SDL_OBJ := $(call c2obj, $(SDL_SRC))
DUKE3D_OBJ = $(call c2obj, $(DUKE3D_SRC))
WOLF3D_OBJ = $(call c2obj, $(WOLF3D_SRC))
# add source files to OTHER_SRC to get automatic dependencies
OTHER_SRC += $(SDL_SRC) $(DUKE3D_SRC)
OTHER_SRC += $(SDL_SRC) $(DUKE3D_SRC) $(WOLF3D_SRC)
OTHER_INC += -I$(SDL_SRCDIR)/include
# include comes first because of possible system SDL headers taking
@ -31,14 +33,18 @@ endif
ifndef APP_TYPE
### no target has a big enough plugin buffer
ROCKS += $(SDL_OBJDIR)/duke3d.ovl
ROCKS += $(SDL_OBJDIR)/duke3d.ovl $(SDL_OBJDIR)/wolf3d.ovl
DUKE3D_OUTLDS = $(SDL_OBJDIR)/duke3d.link
WOLF3D_OUTLDS = $(SDL_OBJDIR)/wolf3d.link
SDL_OVLFLAGS = -T$(DUKE3D_OUTLDS) -Wl,--gc-sections -Wl,-Map,$(basename $@).map
else
### simulator
ROCKS += $(SDL_OBJDIR)/duke3d.rock
ROCKS += $(SDL_OBJDIR)/wolf3d.rock
endif
# Duke3D
$(SDL_OBJDIR)/duke3d.rock: $(SDL_OBJ) $(DUKE3D_OBJ) $(TLSFLIB)
$(SDL_OBJDIR)/duke3d.refmap: $(SDL_OBJ) $(DUKE3D_OBJ) $(TLSFLIB)
@ -54,6 +60,25 @@ $(SDL_OBJDIR)/duke3d.ovl: $(SDL_OBJ) $(DUKE3D_OBJ) $(TLSFLIB) $(DUKE3D_OUTLDS)
-lgcc $(SDL_OVLFLAGS)
$(call PRINTS,LD $(@F))$(call objcopy,$(basename $@).elf,$@)
# Wolf3D
$(SDL_OBJDIR)/wolf3d.rock: $(SDL_OBJ) $(WOLF3D_OBJ) $(TLSFLIB)
$(SDL_OBJDIR)/wolf3d.refmap: $(SDL_OBJ) $(WOLF3D_OBJ) $(TLSFLIB)
$(WOLF3D_OUTLDS): $(PLUGIN_LDS) $(SDL_OBJDIR)/wolf3d.refmap
$(call PRINTS,PP $(@F))$(call preprocess2file,$<,$@,-DOVERLAY_OFFSET=$(shell \
$(TOOLSDIR)/ovl_offset.pl $(SDL_OBJDIR)/wolf3d.refmap))
$(SDL_OBJDIR)/wolf3d.ovl: $(SDL_OBJ) $(WOLF3D_OBJ) $(TLSFLIB) $(WOLF3D_OUTLDS)
$(SILENT)$(CC) $(PLUGINFLAGS) -o $(basename $@).elf \
$(filter %.o, $^) \
$(filter %.a, $+) \
-lgcc $(SDL_OVLFLAGS)
$(call PRINTS,LD $(@F))$(call objcopy,$(basename $@).elf,$@)
# common
$(SDL_OBJDIR)/%.o: $(SDL_SRCDIR)/%.c $(SDL_SRCDIR)/sdl.make $(BUILDDIR)/sysfont.h
$(SILENT)mkdir -p $(dir $@)
$(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) -I$(dir $<) $(SDLFLAGS) -c $< -o $@