# Linux makefile for Glide3 and Texus2
#
#  Copyright (c) 2003 - Borca Daniel
#  Email : dborca@users.sourceforge.net
#  Web   : http://www.geocities.com/dborca
#
# $Header$
#


#
#  Available options:
#
#    Environment variables:
#	FX_GLIDE_HW	build for the given ASIC (cvg, h3, h5).
#			default = h5
#	DRI=1		Build DRI version.
#			target  = h3, h5
#			default = no
#	DGA=1		Build DGA version (experimental).
#			target  = h3, h5
#			default = no
#	XPATH		specify X libraries path; needed by DRI and DGA.
#			target  = h3, h5
#			default = /usr/X11/lib
#	H4=1		Avenger/Napalm.
#			target  = h3, h5
#			default = no
#	CPU		optimize for the given processor.
#			target  = cvg, h3, h5
#			default = pentium
#	DEBUG=1		disable optimizations and build for debug.
#			target  = cvg, h3, h5
#			default = no
#	USE_X86=1	use assembler triangle specializations; req by CVG
#			target  = cvg, h3, h5
#			default = no
#	USE_3DNOW=1	allow 3DNow! specializations. However, the true CPU
#			capabilities are still checked at run-time to avoid
#			crashes.
#			target  = cvg, h3, h5
#			default = no
#	USE_MMX=1	(see USE_3DNOW)
#			target  = h5
#			default = no
#	USE_SSE=1	(see USE_3DNOW)
#			target  = h5
#			default = no
#	USE_SSE2=1	(see USE_3DNOW)
#			target  = h5
#			default = no
#	TEXUS2=1	embed Texus2 functions into Glide3.
#			target  = cvg, h3, h5
#			default = no
#
#    Targets:
#	all:		build everything
#	glide3x:	build Glide3x lib
#	clean:		remove object files
#	realclean:	remove all generated files
#



.PHONY: all glide3x clean realclean
.INTERMEDIATE: fxgasm gendate fxbldno
.SUFFIXES: .lo

export PATH := $(PATH):.

###############################################################################
#	general defines (user settable?)
###############################################################################

GLIDE_LIB = libglide3.a
GLIDE_SO  = libglide3.so
TEXUS_EXE = texus2

FX_GLIDE_HW ?= h5
FX_GLIDE_SW = swlibs
GLIDE_LIBDIR = $(FX_GLIDE_HW)/lib
TEXUS_EXEDIR = $(FX_GLIDE_SW)/bin

###############################################################################
#	tools
###############################################################################

CC = gcc
AS = nasm
AR = ar

LD = gcc
CP = cp

###############################################################################
#	defines
###############################################################################

# platform
CDEFS = -D__linux__
ifneq ($(FX_GLIDE_HW),cvg)
XPATH ?= /usr/X11/lib
ifeq ($(DRI),1)
CDEFS += -DDRI_BUILD
LDFLAGS = -L$(XPATH)
LDLIBS = -lX11
endif
ifeq ($(DGA),1)
CDEFS += -DUSE_XDGA_SWITCH=1
LDFLAGS = -L$(XPATH)
LDLIBS = -lX11 -lXext -lXxf86dga
endif
endif

# general
CDEFS += -DGLIDE3 -DGLIDE3_ALPHA -DGLIDE_HW_TRI_SETUP=1 -DGLIDE_INIT_HWC -DGLIDE_PACKED_RGB=0 -DGLIDE_PACKET3_TRI_SETUP=1 -DGLIDE_TRI_CULLING=1 -DUSE_PACKET_FIFO=1

# subsystem
ifeq ($(FX_GLIDE_HW),cvg)
CDEFS += -DCVG
else
CDEFS += -DH3
ifdef H4
CDEFS += -DH4
endif
ifeq ($(FX_GLIDE_HW),h5)
CDEFS += -DFX_GLIDE_H5_CSIM=1 -DFX_GLIDE_NAPALM=1
endif
endif

# debug
ifdef DEBUG
CDEFS += -DGDBG_INFO_ON -DGLIDE_DEBUG -DGLIDE_SANITY_ASSERT -DGLIDE_SANITY_SIZE
endif

# other
CDEFS += -DGLIDE_PLUG -DGLIDE_SPLASH
#CDEFS += -DGLIDE_LIB
ifeq ($(FX_GLIDE_HW),cvg)
#CDEFS += -DGLIDE3_SCALER
CDEFS += -DGLIDE_DISPATCH_SETUP -DGLIDE_DISPATCH_DOWNLOAD
CDEFS += -DINIT_LINUX
CDEFS += -D__3Dfx_PCI_CFG__
else
#CDEFS += -DGLIDE_CHECK_CONTEXT
endif

###############################################################################
#	flags
###############################################################################

# librarian
ARFLAGS = rus

# assembler
ASFLAGS = -O2 -felf -D__linux__
ASFLAGS += -I$(FX_GLIDE_HW)/glide3/src
ASFLAGS += $(CDEFS)

# compiler
CFLAGS = -Wall -W

ifdef DEBUG
CFLAGS += -O0 -g
else
CPU ?= pentium
CFLAGS += -O2 -ffast-math -mcpu=$(CPU)
endif

CFLAGS += -I$(FX_GLIDE_HW)/glide3/src -I$(FX_GLIDE_HW)/incsrc -I$(FX_GLIDE_HW)/minihwc -I$(FX_GLIDE_HW)/cinit -I$(FX_GLIDE_HW)/init
CFLAGS += -I$(FX_GLIDE_SW)/fxmisc -I$(FX_GLIDE_SW)/newpci/pcilib -I$(FX_GLIDE_SW)/fxmemmap
CFLAGS += -I$(FX_GLIDE_SW)/texus2/lib
CFLAGS += $(CDEFS)

ifeq ($(FX_GLIDE_HW),cvg)
override USE_X86 = 1
else
ifeq ($(FX_GLIDE_HW),h3)
override USE_MMX = 0
override USE_SSE = 0
override USE_SSE2 = 0
endif
endif

ifeq ($(USE_3DNOW),1)
CFLAGS += -DGL_AMD3D
override USE_X86 = 1
endif
ifeq ($(USE_MMX),1)
CFLAGS += -DGL_MMX
override USE_X86 = 1
endif
ifeq ($(USE_SSE),1)
CFLAGS += -DGL_SSE
override USE_X86 = 1
endif
ifeq ($(USE_SSE2),1)
CFLAGS += -DGL_SSE2
override USE_X86 = 1
endif

ifneq ($(USE_X86),1)
CFLAGS += -DGLIDE_USE_C_TRISETUP
endif

###############################################################################
#	objects
###############################################################################

GLIDE_OBJECTS = \
	$(FX_GLIDE_HW)/glide3/src/fifo.o \
	$(FX_GLIDE_HW)/glide3/src/distate.o \
	$(FX_GLIDE_HW)/glide3/src/gstrip.o \
	$(FX_GLIDE_HW)/glide3/src/distrip.o \
	$(FX_GLIDE_HW)/glide3/src/diget.o \
	$(FX_GLIDE_HW)/glide3/src/gsplash.o \
	$(FX_GLIDE_HW)/glide3/src/g3df.o \
	$(FX_GLIDE_HW)/glide3/src/gu.o \
	$(FX_GLIDE_HW)/glide3/src/gpci.o \
	$(FX_GLIDE_HW)/glide3/src/diglide.o \
	$(FX_GLIDE_HW)/glide3/src/disst.o \
	$(FX_GLIDE_HW)/glide3/src/ditex.o \
	$(FX_GLIDE_HW)/glide3/src/gbanner.o \
	$(FX_GLIDE_HW)/glide3/src/gerror.o \
	$(FX_GLIDE_HW)/glide3/src/gaa.o \
	$(FX_GLIDE_HW)/glide3/src/gdraw.o \
	$(FX_GLIDE_HW)/glide3/src/gglide.o \
	$(FX_GLIDE_HW)/glide3/src/glfb.o \
	$(FX_GLIDE_HW)/glide3/src/gsst.o \
	$(FX_GLIDE_HW)/glide3/src/gtex.o \
	$(FX_GLIDE_HW)/glide3/src/gtexdl.o \
	$(FX_GLIDE_HW)/glide3/src/cpuid.o \
	$(FX_GLIDE_SW)/newpci/pcilib/fxpci.o \
	$(FX_GLIDE_SW)/newpci/pcilib/fxlinux.o \
	$(FX_GLIDE_SW)/fxmisc/linutil.o \
	$(FX_GLIDE_HW)/glide3/src/xtexdl_def.o

ifeq ($(USE_X86),1)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/xdraw2_def.o \
	$(FX_GLIDE_HW)/glide3/src/xdraw3_def.o
ifeq ($(USE_3DNOW),1)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/xdraw2_3dnow.o \
	$(FX_GLIDE_HW)/glide3/src/xdraw3_3dnow.o \
	$(FX_GLIDE_HW)/glide3/src/xtexdl_3dnow.o
endif
ifeq ($(USE_MMX),1)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/xtexdl_mmx.o
endif
ifeq ($(USE_SSE),1)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/xdraw2_sse.o \
	$(FX_GLIDE_HW)/glide3/src/xdraw3_sse.o
endif
ifeq ($(USE_SSE2),1)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/xtexdl_sse2.o
endif
else
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/gxdraw.o
endif

ifeq ($(FX_GLIDE_HW),cvg)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/digutex.o \
	$(FX_GLIDE_SW)/newpci/pcilib/fxmsr.o \
	$(FX_GLIDE_HW)/init/canopus.o \
	$(FX_GLIDE_HW)/init/dac.o \
	$(FX_GLIDE_HW)/init/gamma.o \
	$(FX_GLIDE_HW)/init/gdebug.o \
	$(FX_GLIDE_HW)/init/info.o \
	$(FX_GLIDE_HW)/init/parse.o \
	$(FX_GLIDE_HW)/init/print.o \
	$(FX_GLIDE_HW)/init/sli.o \
	$(FX_GLIDE_HW)/init/sst1init.o \
	$(FX_GLIDE_HW)/init/util.o \
	$(FX_GLIDE_HW)/init/video.o \
	$(FX_GLIDE_HW)/init/fxremap.o
else
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/glide3/src/gthread.o \
	$(FX_GLIDE_HW)/minihwc/hwcio.o \
	$(FX_GLIDE_HW)/minihwc/gdebug.o
ifeq ($(DRI),1)
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/minihwc/linhwc.o
else
GLIDE_OBJECTS += \
	$(FX_GLIDE_HW)/minihwc/minihwc.o \
	$(FX_GLIDE_HW)/minihwc/lin_mode.o \
	h5/cinit/h3cinit.o
endif
endif

TEXUS_SOURCES = \
	$(FX_GLIDE_SW)/texus2/lib/texuslib.c \
	$(FX_GLIDE_SW)/texus2/lib/clamp.c \
	$(FX_GLIDE_SW)/texus2/lib/read.c \
	$(FX_GLIDE_SW)/texus2/lib/resample.c \
	$(FX_GLIDE_SW)/texus2/lib/mipmap.c \
	$(FX_GLIDE_SW)/texus2/lib/quantize.c \
	$(FX_GLIDE_SW)/texus2/lib/ncc.c \
	$(FX_GLIDE_SW)/texus2/lib/nccnnet.c \
	$(FX_GLIDE_SW)/texus2/lib/pal256.c \
	$(FX_GLIDE_SW)/texus2/lib/pal6666.c \
	$(FX_GLIDE_SW)/texus2/lib/dequant.c \
	$(FX_GLIDE_SW)/texus2/lib/view.c \
	$(FX_GLIDE_SW)/texus2/lib/util.c \
	$(FX_GLIDE_SW)/texus2/lib/diffuse.c \
	$(FX_GLIDE_SW)/texus2/lib/write.c \
	$(FX_GLIDE_SW)/texus2/lib/tga.c \
	$(FX_GLIDE_SW)/texus2/lib/3df.c \
	$(FX_GLIDE_SW)/texus2/lib/ppm.c \
	$(FX_GLIDE_SW)/texus2/lib/rgt.c \
	$(FX_GLIDE_SW)/texus2/lib/txs.c \
	$(FX_GLIDE_SW)/texus2/lib/codec.c \
	$(FX_GLIDE_SW)/texus2/lib/eigen.c \
	$(FX_GLIDE_SW)/texus2/lib/bitcoder.c

ifeq ($(TEXUS2),1)
GLIDE_OBJECTS += $(TEXUS_SOURCES:.c=.o)
endif

###############################################################################
#	rules
###############################################################################

.c.o:
	$(CC) -o $@ $(CFLAGS) -c $<
.S.o:
	$(CC) -o $@ $(CFLAGS) -c $<
.s.o:
	$(CC) -o $@ $(CFLAGS) -x assembler-with-cpp -c $<
.c.lo:
	$(CC) -o $@ $(CFLAGS) -DPIC -fPIC -c $<

###############################################################################
#	main
###############################################################################
all: glide3x $(TEXUS_EXEDIR)/$(TEXUS_EXE)

glide3x: $(GLIDE_LIBDIR)/$(GLIDE_LIB) $(GLIDE_LIBDIR)/$(GLIDE_SO)

$(GLIDE_LIBDIR)/$(GLIDE_LIB): $(GLIDE_OBJECTS)
	$(AR) $(ARFLAGS) $@ $^

$(GLIDE_LIBDIR)/$(GLIDE_SO): $(GLIDE_OBJECTS:.o=.lo)
	$(CC) -o $@ -shared $^ $(LDFLAGS) $(LDLIBS)

$(TEXUS_EXEDIR)/$(TEXUS_EXE): $(FX_GLIDE_SW)/texus2/cmd/cmd.c $(GLIDE_LIBDIR)/$(GLIDE_LIB)
ifeq ($(TEXUS2),1)
	$(CC) -o $@ -s $(CFLAGS) -L$(GLIDE_LIBDIR) $< -lglide3 -lm
else
	$(warning Texus2 not enabled... Skipping $(TEXUS_EXE))
endif

###############################################################################
#	rules(2)
###############################################################################

cvg/glide3/src/xtexdl_def.o: cvg/glide3/src/xtexdl.c
	$(CC) -o $@ $(CFLAGS) -c $<
cvg/glide3/src/cpuid.o: cvg/glide3/src/cpudtect.asm
	$(AS) -o $@ $(ASFLAGS) $<
h3/glide3/src/cpuid.o: h3/glide3/src/cpudtect.asm
	$(AS) -o $@ $(ASFLAGS) $<

$(FX_GLIDE_HW)/glide3/src/xdraw2_def.o: $(FX_GLIDE_HW)/glide3/src/xdraw2.asm
	$(AS) -o $@ $(ASFLAGS) $<
$(FX_GLIDE_HW)/glide3/src/xdraw3_def.o: $(FX_GLIDE_HW)/glide3/src/xdraw3.asm
	$(AS) -o $@ $(ASFLAGS) $<
$(FX_GLIDE_HW)/glide3/src/xdraw2_3dnow.o: $(FX_GLIDE_HW)/glide3/src/xdraw2.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_AMD3D=1 $<
$(FX_GLIDE_HW)/glide3/src/xdraw3_3dnow.o: $(FX_GLIDE_HW)/glide3/src/xdraw3.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_AMD3D=1 $<
$(FX_GLIDE_HW)/glide3/src/xtexdl_3dnow.o: $(FX_GLIDE_HW)/glide3/src/xtexdl.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_AMD3D=1 $<
$(FX_GLIDE_HW)/glide3/src/xtexdl_mmx.o: $(FX_GLIDE_HW)/glide3/src/xtexdl.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_MMX=1 $<
$(FX_GLIDE_HW)/glide3/src/xdraw2_sse.o: $(FX_GLIDE_HW)/glide3/src/xdraw2.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_SSE=1 $<
$(FX_GLIDE_HW)/glide3/src/xdraw3_sse.o: $(FX_GLIDE_HW)/glide3/src/xdraw3.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_SSE=1 $<
$(FX_GLIDE_HW)/glide3/src/xtexdl_sse2.o: $(FX_GLIDE_HW)/glide3/src/xtexdl.asm
	$(AS) -o $@ $(ASFLAGS) -DGL_SSE2=1 $<

cvg/glide3/src/xtexdl_def.lo: cvg/glide3/src/xtexdl.c
	$(CC) -o $@ $(CFLAGS) -DPIC -fPIC -c $<
cvg/glide3/src/cpuid.lo: cvg/glide3/src/cpuid.o
	$(CP) $< $@
h3/glide3/src/cpuid.lo: h3/glide3/src/cpuid.o
	$(CP) $< $@

$(FX_GLIDE_HW)/glide3/src/xdraw2_def.lo: $(FX_GLIDE_HW)/glide3/src/xdraw2_def.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xdraw3_def.lo: $(FX_GLIDE_HW)/glide3/src/xdraw3_def.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xdraw2_3dnow.lo: $(FX_GLIDE_HW)/glide3/src/xdraw2_3dnow.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xdraw3_3dnow.lo: $(FX_GLIDE_HW)/glide3/src/xdraw3_3dnow.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xtexdl_3dnow.lo: $(FX_GLIDE_HW)/glide3/src/xtexdl_3dnow.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xtexdl_mmx.lo: $(FX_GLIDE_HW)/glide3/src/xtexdl_mmx.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xdraw2_sse.lo: $(FX_GLIDE_HW)/glide3/src/xdraw2_sse.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xdraw3_sse.lo: $(FX_GLIDE_HW)/glide3/src/xdraw3_sse.o
	$(CP) $< $@
$(FX_GLIDE_HW)/glide3/src/xtexdl_sse2.lo: $(FX_GLIDE_HW)/glide3/src/xtexdl_sse2.o
	$(CP) $< $@

ifeq ($(FX_GLIDE_HW),h5)
GENDATE = $(FX_GLIDE_HW)/incsrc/gendate.h
FXBLDNO = $(FX_GLIDE_HW)/glide3/src/fxbldno.h
endif

$(GLIDE_OBJECTS): $(FX_GLIDE_HW)/glide3/src/fxinline.h $(FX_GLIDE_HW)/glide3/src/fxgasm.h $(FXBLDNO)

$(FX_GLIDE_HW)/glide3/src/fxinline.h: fxgasm
	$< -inline > $@

$(FX_GLIDE_HW)/glide3/src/fxgasm.h: fxgasm
	$< -hex > $@

fxgasm: $(FX_GLIDE_HW)/glide3/src/fxgasm.c $(GENDATE)
	$(CC) -o $@ $(CFLAGS) $<

$(GENDATE): gendate
	$< > $@

$(FXBLDNO): fxbldno
	$< > $@

gendate: $(GENDATE:.h=.c)
	$(CC) -o $@ $(CFLAGS) $<

fxbldno: $(FXBLDNO:.h=.c)
	$(CC) -o $@ $(CFLAGS) $<

###############################################################################
#	clean, realclean
###############################################################################

clean:
	-$(RM) cvg/init/*.[l]o
	-$(RM) h5/cinit/*.[l]o
	-$(RM) $(FX_GLIDE_HW)/glide3/src/*.[l]o
	-$(RM) $(FX_GLIDE_HW)/minihwc/*.[l]o
	-$(RM) $(FX_GLIDE_SW)/newpci/pcilib/*.[l]o
	-$(RM) $(FX_GLIDE_HW)/glide3/src/fxinline.h
	-$(RM) $(FX_GLIDE_HW)/glide3/src/fxgasm.h
	-$(RM) $(GENDATE)
	-$(RM) $(FXBLDNO)
	-$(RM) $(FX_GLIDE_SW)/fxmisc/*.[l]o
	-$(RM) $(FX_GLIDE_SW)/texus2/lib/*.[l]o)

realclean: clean
	-$(RM) $(GLIDE_LIBDIR)/$(GLIDE_LIB)
	-$(RM) $(GLIDE_LIBDIR)/$(GLIDE_SO)
	-$(RM) $(TEXUS_EXEDIR)/$(TEXUS_EXE))