#
# Kmscon - Global Makefile
# Copyright (c) 2012 David Herrmann <dh.herrmann@googlemail.com>
#

ACLOCAL_AMFLAGS = -I m4
SUBDIRS = \
	. \
	docs/reference
include_HEADERS =
EXTRA_DIST = \
	README \
	COPYING \
	NEWS
CLEANFILES =

#
# Build targets
#
# kmscon: Main kmscon program
# test_output: Test program for the display graphics subsystem
# test_vt: Test program for the VT subsystem
# test_input: Test program for the input subsystem
# libkmscon-core: Static core library for kmscon and test programs
# libkmscon-static: Static library for all subsystems
# genshader: Program used to convert shaders into C-source files
#

bin_PROGRAMS = \
	kmscon \
	fakevt
check_PROGRAMS = \
	test_output \
	test_vt \
	test_input
noinst_PROGRAMS = \
	genshader
noinst_LTLIBRARIES = \
	libkmscon-core.la \
	libkmscon-static.la
lib_LTLIBRARIES = \
	libeloop.la \
	libuterm.la

#
# Default CFlags
# Make all files include "config.h" by default. This shouldn't cause any
# problems and we cannot forget to include it anymore.
#
# Also make the linker discard all unused symbols as we are not building a
# shared library.
#
# When compiling in debug mode, we enable debug symbols so debugging with gdb
# is easier. If optimizations are disabled, we pass -O0 to the compiler.
# Otherwise, we use standard optimizations -O2.
#

AM_CFLAGS = \
	-Wall
AM_CPPFLAGS = \
	-include $(top_builddir)/config.h \
	-I $(srcdir)/src \
	-I $(srcdir)/external
AM_LDFLAGS = \
	-Wl,--as-needed

if DEBUG
AM_CFLAGS += -g
endif

if OPTIMIZATIONS
AM_CFLAGS += -O2
else
AM_CFLAGS += -O0
endif

#
# Shaders
# As there is no need to modify shaders at run-time, we statically compile them
# into object files. As autotools would ignore them, we need to add them to
# EXTRA_DIST.
# The program that converts the shaders into C-source files is "genshader". It's
# pretty simple and just creates a string with the shader source as content.
#

SHADERS = \
	src/static_fill.vert \
	src/static_fill.frag \
	src/static_blend.vert \
	src/static_blend.frag \
	src/static_blit.vert \
	src/static_blit.frag \
	src/static_gltex.vert \
	src/static_gltex.frag

EXTRA_DIST += \
	$(SHADERS)
CLEANFILES += \
	src/static_shaders.c

nodist_genshader_SOURCES = \
	src/genshader.c

src/static_shaders.c: $(SHADERS) genshader$(EXEEXT)
	./genshader$(EXEEXT) src/static_shaders.c $(SHADERS)

#
# libkmscon-core
# This static library contains all the source files used in kmscon. We build
# them as separate library to allow linking them to the test programs.
# Only "main.c" is not included here as it contains the main() function.
#

libkmscon_core_la_SOURCES = \
	src/main.h \
	src/conf.c src/conf.h \
	src/ui.c src/ui.h \
	src/console.c src/console.h \
	src/unicode.c src/unicode.h \
	src/log.c src/log.h \
	src/vte.c src/vte.h \
	src/vte_charsets.c \
	src/terminal.c src/terminal.h \
	src/pty.c src/pty.h \
	src/text.h \
	src/text.c \
	src/text_font.c

if KMSCON_HAVE_8X16
libkmscon_core_la_SOURCES += \
	src/text_font_8x16.c
endif

if KMSCON_HAVE_FREETYPE2
libkmscon_core_la_SOURCES += \
	src/text_font_freetype2.c
endif

if KMSCON_HAVE_PANGO
libkmscon_core_la_SOURCES += \
	src/text_font_pango.c
endif

if KMSCON_HAVE_BBLIT
libkmscon_core_la_SOURCES += \
	src/text_bblit.c
endif

if KMSCON_HAVE_GLES2
libkmscon_core_la_SOURCES += \
	src/text_gltex.c
endif

libkmscon_core_la_CPPFLAGS = \
	$(AM_CPPFLAGS) \
	$(GLES2_CFLAGS) \
	$(PANGO_CFLAGS) \
	$(FREETYPE2_CFLAGS)
libkmscon_core_la_LIBADD = \
	$(GLES2_LIBS) \
	$(PANGO_LIBS) \
	$(FREETYPE2_LIBS) \
	-lpthread \
	libeloop.la \
	libuterm.la

#
# libuterm
# The uterm library provides helpers to creater terminals in user-space. They
# are not limited to text-based terminals but rather provide graphics contexts
# so arbitrary output can be displayed. Additionally, they provide VT
# abstractions and an input layer
#

libuterm_la_SOURCES = \
	src/uterm.h \
	src/uterm_internal.h \
	src/uterm_video.c \
	src/uterm_monitor.c \
	src/uterm_vt.c \
	src/uterm_input.c \
	src/uterm_input_plain.c \
	external/imKStoUCS.h \
	external/imKStoUCS.c

libuterm_la_CPPFLAGS = \
	$(AM_CPPFLAGS) \
	$(SYSTEMD_CFLAGS) \
	$(DRM_CFLAGS) \
	$(EGL_CFLAGS) \
	$(GBM_CFLAGS) \
	$(GLES2_CFLAGS) \
	$(UDEV_CFLAGS) \
	$(XKBCOMMON_CFLAGS)
libuterm_la_LIBADD = \
	$(SYSTEMD_LIBS) \
	$(DRM_LIBS) \
	$(EGL_LIBS) \
	$(GBM_LIBS) \
	$(GLES2_LIBS) \
	$(UDEV_LIBS) \
	$(XKBCOMMON_LIBS) \
	libkmscon-static.la \
	libeloop.la
libuterm_la_LDFLAGS = \
	-version-info 1:0:0

if UTERM_HAVE_FBDEV
libuterm_la_SOURCES += \
	src/uterm_video_fbdev.c
endif

if UTERM_HAVE_DRM
libuterm_la_SOURCES += \
	src/uterm_video_drm.c
endif

if UTERM_HAVE_DUMB
libuterm_la_SOURCES += \
	src/uterm_video_dumb.c
endif

if UTERM_HAVE_XKBCOMMON
libuterm_la_SOURCES += \
	src/uterm_input_uxkb.c
endif

include_HEADERS += \
	src/uterm.h

#
# libeloop
# This library contains the whole event-loop implementation of kmscon. It is
# compiled into a separate object to allow using it in several other programs.
#

libeloop_la_SOURCES = \
	src/eloop.h \
	src/eloop.c

if EV_HAVE_DBUS
libeloop_la_SOURCES += \
	external/dbus-loop.h \
	external/dbus-loop.c
endif

libeloop_la_CPPFLAGS = \
	$(AM_CPPFLAGS) \
	$(DBUS_CFLAGS)
libeloop_la_LIBADD = \
	libkmscon-static.la \
	$(DBUS_LIBS)
libeloop_la_LDFLAGS = \
	-version-info 1:0:0

include_HEADERS += \
	src/eloop.h

#
# libkmscon-static
# This static library contains all small helpers that are used in several other
# libraries and programs that are part of kmscon. To avoid putting these small
# pieces into a library and thus having to keep backwards compatibility, we
# simply link them statically into all other libraries/programs.
#

libkmscon_static_la_SOURCES = \
	src/static_llog.h \
	src/static_misc.h \
	src/static_misc.c \
	external/htable.h \
	external/htable.c

if KMSCON_HAVE_GLES2
nodist_libkmscon_static_la_SOURCES = \
	src/static_gl.h \
	src/static_gl_math.c \
	src/static_gl_shader.c \
	src/static_shaders.c

libkmscon_static_la_CPPFLAGS = \
	$(AM_CPPFLAGS) \
	$(GLES2_CFLAGS)
endif

#
# Binaries
# These are the sources for the main binaries and test programs. They mostly
# consists of a single source file only and include all the libraries that are
# built as part of kmscon.
#

kmscon_SOURCES = src/main.c
kmscon_LDADD = \
	libuterm.la \
	libeloop.la \
	libkmscon-core.la \
	libkmscon-static.la

test_output_SOURCES = tests/test_output.c tests/test_include.h
test_output_LDADD = libkmscon-core.la

test_vt_SOURCES = tests/test_vt.c
test_vt_LDADD = libkmscon-core.la

test_input_SOURCES = tests/test_input.c
test_input_LDADD = libkmscon-core.la

fakevt_SOURCES = tools/fakevt.c
fakevt_LDADD = libkmscon-core.la