# Open Watcom makefile to build SDL2img.dll for OS/2
# wmake -f Makefile.os2
#
# Remember to edit DEPS_INC and DEPS_LIB below to meet
# your own environment!.

LIBNAME = SDL2img
MAJOR_VERSION = 2
MINOR_VERSION = 7
MICRO_VERSION = 0
VERSION = $(MAJOR_VERSION).$(MINOR_VERSION).$(MICRO_VERSION)

TITLENAME = $(LIBNAME) $(VERSION)

LIBFILE = $(LIBNAME).lib
DLLFILE = $(LIBNAME).dll
LNKFILE = $(LIBNAME).lnk
# change DEPS_INC in order to point to the dependency headers.
DEPS_INC=-IC:\SDL2DEV\h\SDL2 -IC:\SDL2DEV\h
# change DEPS_LIB in order to point to the dependency libraries.
DEPS_LIB=C:\SDL2DEV\lib

SRCS = IMG.c IMG_bmp.c IMG_gif.c IMG_jpg.c IMG_lbm.c IMG_pcx.c IMG_png.c &
       IMG_pnm.c IMG_svg.c IMG_tga.c IMG_tif.c IMG_xcf.c IMG_xpm.c IMG_xv.c &
       IMG_webp.c IMG_qoi.c IMG_avif.c IMG_jxl.c IMG_stb.c

LIBS = libpng.lib libtiff.lib zlib.lib jpeg.lib webpdec.lib webpdemux.lib SDL2.lib

CFLAGS_BASE = -bt=os2 -ei -d0 -q -5s -fp5 -fpi87 -sg -oeatxh
# warnings:
CFLAGS_BASE+= -wx -wcd=202
# newer OpenWatcom versions enable W303 by default
CFLAGS_BASE+= -wcd=303
# include paths:
CFLAGS_BASE+= -I"$(%WATCOM)/h/os2" -I"$(%WATCOM)/h"
CFLAGS_BASE+= -Iinclude $(DEPS_INC)
CFLAGS =$(CFLAGS_BASE)
# to build a dll:
CFLAGS+= -bd
# for DECLSPEC:
CFLAGS+= -DBUILD_SDL

# wanted formats:
CFLAGS+= -DLOAD_JPG -DLOAD_PNG -DLOAD_BMP -DLOAD_GIF -DLOAD_LBM &
         -DLOAD_PCX -DLOAD_PNM -DLOAD_TGA -DLOAD_XCF -DLOAD_XPM &
         -DLOAD_XV -DLOAD_SVG -DLOAD_TIF -DLOAD_WEBP -DLOAD_QOI

#CFLAGS+= -DLOAD_AVIF
#CFLAGS+= -DLOAD_JXL
#CFLAGS+= -DUSE_STBIMAGE -DSTBI_NO_SIMD

CFLAGS+= -DSDL_IMAGE_SAVE_JPG=1
CFLAGS+= -DSDL_IMAGE_SAVE_PNG=1

CFLAGS+= -DSDL_BUILD_MAJOR_VERSION=$(MAJOR_VERSION)
CFLAGS+= -DSDL_BUILD_MINOR_VERSION=$(MINOR_VERSION)
CFLAGS+= -DSDL_BUILD_MICRO_VERSION=$(MICRO_VERSION)

.extensions:
.extensions: .lib .dll .obj .c

OBJS = $(SRCS:.c=.obj)

all: $(LIBFILE) showimage.exe showanim.exe

$(LIBFILE): $(DLLFILE)
  @echo * Create library: $@...
  wlib -b -n -q -c -pa -s -t -zld -ii -io $@ $(DLLFILE)

$(DLLFILE): $(OBJS) $(LNKFILE)
  @echo * Link: $@
  wlink @$(LNKFILE)

$(LNKFILE):
  @%create $@
  @%append $@ SYSTEM os2v2_dll INITINSTANCE TERMINSTANCE
  @%append $@ NAME $(LIBNAME)
  @for %i in ($(OBJS)) do @%append $@ FILE %i
  @%append $@ OPTION QUIET
  @%append $@ OPTION DESCRIPTION '@$#libsdl org:$(VERSION)$#@Simple DirectMedia Layer Image Library'
  @%append $@ LIBPATH $(DEPS_LIB)
  @for %i in ($(LIBS)) do @%append $@ LIB %i
  @%append $@ OPTION MAP=$*
  @%append $@ OPTION ELIMINATE
  @%append $@ OPTION MANYAUTODATA
  @%append $@ OPTION OSNAME='OS/2 and eComStation'
  @%append $@ OPTION SHOWDEAD

.c: ./src
.c.obj:
  wcc386 $(CFLAGS) -fo=$^@ $<

showimage.obj: examples/showimage.c
  wcc386 $(CFLAGS_BASE) -fo=$^@ $<

showanim.obj: examples/showanim.c
  wcc386 $(CFLAGS_BASE) -fo=$^@ $<

showimage.exe: $(LIBFILE) showimage.obj
  wlink SYS os2v2 OP q LIBPATH $(DEPS_LIB) LIBR {$(LIBFILE) SDL2.lib} F {showimage.obj}  N showimage.exe

showanim.exe: $(LIBFILE) showanim.obj
  wlink SYS os2v2 OP q LIBPATH $(DEPS_LIB) LIBR {$(LIBFILE) SDL2.lib} F {showanim.obj}  N showanim.exe

clean: .SYMBOLIC
  @echo * Clean: $(TITLENAME)
  @if exist *.obj rm *.obj
  @if exist *.err rm *.err
  @if exist $(LNKFILE) rm $(LNKFILE)

distclean: .SYMBOLIC clean
  @if exist $(DLLFILE) rm $(DLLFILE)
  @if exist $(LIBFILE) rm $(LIBFILE)
  @if exist *.exe rm *.exe
  @if exist *.map rm *.map