Port of Duke Nukem 3D

This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.

Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9

apps/plugins/sdl/sdl.make

@@ -0,0 +1,56 @@
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
+# $Id$
+#
+
+SDL_SRCDIR := $(APPSDIR)/plugins/sdl
+SDL_OBJDIR := $(BUILDDIR)/apps/plugins/sdl
+
+SDL_SRC := $(call preprocess, $(SDL_SRCDIR)/SOURCES)
+DUKE3D_SRC := $(call preprocess, $(SDL_SRCDIR)/SOURCES.duke)
+
+SDL_OBJ := $(call c2obj, $(SDL_SRC))
+DUKE3D_OBJ = $(call c2obj, $(DUKE3D_SRC))
+
+# add source files to OTHER_SRC to get automatic dependencies
+OTHER_SRC += $(SDL_SRC) $(DUKE3D_SRC)
+OTHER_INC += -I$(SDL_SRCDIR)/include
+
+# include comes first because of possible system SDL headers taking
+# precedence
+SDLFLAGS = -I$(SDL_SRCDIR)/include $(filter-out -O%,$(PLUGINFLAGS))	\
+-O3 -Wno-unused-parameter -Xpreprocessor -Wno-undef -Wcast-align
+
+ifndef APP_TYPE
+    ### no target has a big enough plugin buffer
+    ROCKS += $(SDL_OBJDIR)/duke3d.ovl
+    DUKE3D_OUTLDS = $(SDL_OBJDIR)/duke3d.link
+    SDL_OVLFLAGS = -T$(DUKE3D_OUTLDS) -Wl,--gc-sections -Wl,-Map,$(basename $@).map
+else
+    ### simulator
+    ROCKS += $(SDL_OBJDIR)/duke3d.rock
+endif
+
+$(SDL_OBJDIR)/duke3d.rock: $(SDL_OBJ) $(DUKE3D_OBJ) $(TLSFLIB)
+
+$(SDL_OBJDIR)/duke3d.refmap: $(SDL_OBJ) $(DUKE3D_OBJ) $(TLSFLIB)
+
+$(DUKE3D_OUTLDS): $(PLUGIN_LDS) $(SDL_OBJDIR)/duke3d.refmap
+	$(call PRINTS,PP $(@F))$(call preprocess2file,$<,$@,-DOVERLAY_OFFSET=$(shell \
+		$(TOOLSDIR)/ovl_offset.pl $(SDL_OBJDIR)/duke3d.refmap))
+
+$(SDL_OBJDIR)/duke3d.ovl: $(SDL_OBJ) $(DUKE3D_OBJ) $(TLSFLIB) $(DUKE3D_OUTLDS)
+	$(SILENT)$(CC) $(PLUGINFLAGS) -o $(basename $@).elf \
+		$(filter %.o, $^) \
+		$(filter %.a, $+) \
+		-lgcc $(SDL_OVLFLAGS)
+	$(call PRINTS,LD $(@F))$(call objcopy,$(basename $@).elf,$@)
+
+$(SDL_OBJDIR)/%.o: $(SDL_SRCDIR)/%.c $(SDL_SRCDIR)/sdl.make
+	$(SILENT)mkdir -p $(dir $@)
+	$(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) -I$(dir $<) $(SDLFLAGS) -c $< -o $@
+	$(SILENT)$(OC) --redefine-syms=$(SDL_SRCDIR)/redefines.txt $@