Add NuttX support for running DirectFB apps on MCU devices

INSTALL

@@ -1,3 +1,6 @@
+Installation Instructions
+=========================
+
 DirectFB2 is built using Meson.
 
 You will also need a C compiler and fluxcomp for converting .flux interface description files to .c files.
@@ -19,10 +22,23 @@ or with Fusion based on the linux-fusion kernel module:
 
   $ meson setup -Dmulti=true -Dmulti-kernel=true build/
 
+Linux
+=====
+
 On Linux, start the DirectFB2 build with:
 
   $ meson compile -C build/
 
 And install it using:
 
   $ meson install -C build/
+
+NuttX
+=====
+
+On NuttX, copy the DirectFB2 directory to your NuttX apps/graphics/ directory.
+
+Verify that the following Pthread options are enabled in your NuttX configuration:
+
+	[*] Enable mutex types
+	[*] pthread cleanup stack

Kconfig

@@ -0,0 +1,21 @@
+#  This file is part of DirectFB.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+menuconfig GRAPHICS_DIRECTFB2
+	bool "DirectFB2"
+	default y
+	---help---
+		Enable support for DirectFB2.

Make.defs

@@ -0,0 +1,22 @@
+#  This file is part of DirectFB.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+ifneq ($(CONFIG_GRAPHICS_DIRECTFB2),)
+CONFIGURED_APPS += $(APPDIR)/graphics/DirectFB2
+
+CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/graphics/DirectFB2/include
+CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/graphics/DirectFB2/lib
+endif

Makefile

@@ -0,0 +1,244 @@
+#  This file is part of DirectFB.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+include $(APPDIR)/Make.defs
+
+CFLAGS += -I.
+CFLAGS += -Isrc
+
+CFLAGS += -DBUILDTIME=\"$(shell date -u "+%Y-%m-%d\ %H:%M")\"
+CFLAGS += -DSYSCONFDIR=\"/etc\"
+
+DIRECT_CSRCS  = lib/direct/clock.c
+DIRECT_CSRCS += lib/direct/conf.c
+DIRECT_CSRCS += lib/direct/debug.c
+DIRECT_CSRCS += lib/direct/direct.c
+DIRECT_CSRCS += lib/direct/direct_result.c
+DIRECT_CSRCS += lib/direct/hash.c
+DIRECT_CSRCS += lib/direct/init.c
+DIRECT_CSRCS += lib/direct/interface.c
+DIRECT_CSRCS += lib/direct/log.c
+DIRECT_CSRCS += lib/direct/log_domain.c
+DIRECT_CSRCS += lib/direct/map.c
+DIRECT_CSRCS += lib/direct/mem.c
+DIRECT_CSRCS += lib/direct/memcpy.c
+DIRECT_CSRCS += lib/direct/messages.c
+DIRECT_CSRCS += lib/direct/modules.c
+DIRECT_CSRCS += lib/direct/result.c
+DIRECT_CSRCS += lib/direct/stream.c
+DIRECT_CSRCS += lib/direct/system.c
+DIRECT_CSRCS += lib/direct/thread.c
+DIRECT_CSRCS += lib/direct/trace.c
+DIRECT_CSRCS += lib/direct/util.c
+DIRECT_CSRCS += lib/direct/os/nuttx/clock.c
+DIRECT_CSRCS += lib/direct/os/nuttx/filesystem.c
+DIRECT_CSRCS += lib/direct/os/nuttx/log.c
+DIRECT_CSRCS += lib/direct/os/nuttx/mem.c
+DIRECT_CSRCS += lib/direct/os/nuttx/mutex.c
+DIRECT_CSRCS += lib/direct/os/nuttx/signals.c
+DIRECT_CSRCS += lib/direct/os/nuttx/system.c
+DIRECT_CSRCS += lib/direct/os/nuttx/thread.c
+
+FUSION_CSRCS  = lib/fusion/arena.c
+FUSION_CSRCS += lib/fusion/call.c
+FUSION_CSRCS += lib/fusion/conf.c
+FUSION_CSRCS += lib/fusion/fusion.c
+FUSION_CSRCS += lib/fusion/hash.c
+FUSION_CSRCS += lib/fusion/init.c
+FUSION_CSRCS += lib/fusion/lock.c
+FUSION_CSRCS += lib/fusion/object.c
+FUSION_CSRCS += lib/fusion/reactor.c
+FUSION_CSRCS += lib/fusion/ref.c
+FUSION_CSRCS += lib/fusion/shmalloc.c
+FUSION_CSRCS += lib/fusion/vector.c
+FUSION_CSRCS += lib/fusion/shm/fake.c
+
+DIRECTFB_CSRCS  = src/directfb.c
+DIRECTFB_CSRCS += src/directfb_result.c
+DIRECTFB_CSRCS += src/idirectfb.c
+DIRECTFB_CSRCS += src/init.c
+DIRECTFB_CSRCS += src/core/CoreDFB_real.c
+DIRECTFB_CSRCS += src/core/CoreGraphicsState_real.c
+DIRECTFB_CSRCS += src/core/CoreGraphicsStateClient.c
+DIRECTFB_CSRCS += src/core/CoreInputDevice_real.c
+DIRECTFB_CSRCS += src/core/CoreLayer_real.c
+DIRECTFB_CSRCS += src/core/CoreLayerContext_real.c
+DIRECTFB_CSRCS += src/core/CoreLayerRegion_real.c
+DIRECTFB_CSRCS += src/core/CorePalette_real.c
+DIRECTFB_CSRCS += src/core/CoreScreen_real.c
+DIRECTFB_CSRCS += src/core/CoreSlave_real.c
+DIRECTFB_CSRCS += src/core/CoreSurface_real.c
+DIRECTFB_CSRCS += src/core/CoreSurfaceAllocation_real.c
+DIRECTFB_CSRCS += src/core/CoreSurfaceClient_real.c
+DIRECTFB_CSRCS += src/core/CoreWindow_real.c
+DIRECTFB_CSRCS += src/core/CoreWindowStack_real.c
+DIRECTFB_CSRCS += src/core/clipboard.c
+DIRECTFB_CSRCS += src/core/colorhash.c
+DIRECTFB_CSRCS += src/core/core.c
+DIRECTFB_CSRCS += src/core/core_parts.c
+DIRECTFB_CSRCS += src/core/fonts.c
+DIRECTFB_CSRCS += src/core/gfxcard.c
+DIRECTFB_CSRCS += src/core/graphics_state.c
+DIRECTFB_CSRCS += src/core/input.c
+DIRECTFB_CSRCS += src/core/layer_context.c
+DIRECTFB_CSRCS += src/core/layer_control.c
+DIRECTFB_CSRCS += src/core/layer_region.c
+DIRECTFB_CSRCS += src/core/layers.c
+DIRECTFB_CSRCS += src/core/local_surface_pool.c
+DIRECTFB_CSRCS += src/core/palette.c
+DIRECTFB_CSRCS += src/core/prealloc_surface_pool_bridge.c
+DIRECTFB_CSRCS += src/core/prealloc_surface_pool.c
+DIRECTFB_CSRCS += src/core/screen.c
+DIRECTFB_CSRCS += src/core/screens.c
+DIRECTFB_CSRCS += src/core/state.c
+DIRECTFB_CSRCS += src/core/surface.c
+DIRECTFB_CSRCS += src/core/surface_allocation.c
+DIRECTFB_CSRCS += src/core/surface_buffer.c
+DIRECTFB_CSRCS += src/core/surface_client.c
+DIRECTFB_CSRCS += src/core/surface_core.c
+DIRECTFB_CSRCS += src/core/surface_pool.c
+DIRECTFB_CSRCS += src/core/surface_pool_bridge.c
+DIRECTFB_CSRCS += src/core/system.c
+DIRECTFB_CSRCS += src/core/windows.c
+DIRECTFB_CSRCS += src/core/windowstack.c
+DIRECTFB_CSRCS += src/core/wm.c
+DIRECTFB_CSRCS += src/display/idirectfbdisplaylayer.c
+DIRECTFB_CSRCS += src/display/idirectfbpalette.c
+DIRECTFB_CSRCS += src/display/idirectfbscreen.c
+DIRECTFB_CSRCS += src/display/idirectfbsurface.c
+DIRECTFB_CSRCS += src/display/idirectfbsurfaceallocation.c
+DIRECTFB_CSRCS += src/display/idirectfbsurface_layer.c
+DIRECTFB_CSRCS += src/display/idirectfbsurface_window.c
+DIRECTFB_CSRCS += src/gfx/clip.c
+DIRECTFB_CSRCS += src/gfx/convert.c
+DIRECTFB_CSRCS += src/gfx/util.c
+DIRECTFB_CSRCS += src/gfx/generic/generic.c
+DIRECTFB_CSRCS += src/gfx/generic/generic_blit.c
+DIRECTFB_CSRCS += src/gfx/generic/generic_draw_line.c
+DIRECTFB_CSRCS += src/gfx/generic/generic_fill_rectangle.c
+DIRECTFB_CSRCS += src/gfx/generic/generic_stretch_blit.c
+DIRECTFB_CSRCS += src/gfx/generic/generic_texture_triangles.c
+DIRECTFB_CSRCS += src/gfx/generic/generic_util.c
+DIRECTFB_CSRCS += src/input/idirectfbeventbuffer.c
+DIRECTFB_CSRCS += src/input/idirectfbinputdevice.c
+DIRECTFB_CSRCS += src/media/idirectfbdatabuffer.c
+DIRECTFB_CSRCS += src/media/idirectfbdatabuffer_file.c
+DIRECTFB_CSRCS += src/media/idirectfbdatabuffer_memory.c
+DIRECTFB_CSRCS += src/media/idirectfbdatabuffer_streamed.c
+DIRECTFB_CSRCS += src/media/idirectfbfont.c
+DIRECTFB_CSRCS += src/media/idirectfbimageprovider.c
+DIRECTFB_CSRCS += src/media/idirectfbvideoprovider.c
+DIRECTFB_CSRCS += src/misc/conf.c
+DIRECTFB_CSRCS += src/misc/gfx_util.c
+DIRECTFB_CSRCS += src/misc/util.c
+DIRECTFB_CSRCS += src/windows/idirectfbwindow.c
+
+FLUX_CSRCS  = src/core/CoreDFB.c
+FLUX_CSRCS += src/core/CoreGraphicsState.c
+FLUX_CSRCS += src/core/CoreInputDevice.c
+FLUX_CSRCS += src/core/CoreLayer.c
+FLUX_CSRCS += src/core/CoreLayerContext.c
+FLUX_CSRCS += src/core/CoreLayerRegion.c
+FLUX_CSRCS += src/core/CorePalette.c
+FLUX_CSRCS += src/core/CoreSlave.c
+FLUX_CSRCS += src/core/CoreScreen.c
+FLUX_CSRCS += src/core/CoreSurface.c
+FLUX_CSRCS += src/core/CoreSurfaceAllocation.c
+FLUX_CSRCS += src/core/CoreSurfaceClient.c
+FLUX_CSRCS += src/core/CoreWindow.c
+FLUX_CSRCS += src/core/CoreWindowStack.c
+FLUX_HDRS = $(patsubst %.c,%.h,$(FLUX_CSRCS))
+
+CSRCS = $(DIRECT_CSRCS) $(FUSION_CSRCS) $(DIRECTFB_CSRCS) $(FLUX_CSRCS)
+
+CORE_SYSTEM_CSRCS = systems/dummy/dummy.c
+CSRCS += $(CORE_SYSTEM_CSRCS)
+
+FONT_PROVIDER_CSRCS = interfaces/IDirectFBFont/idirectfbfont_dgiff.c
+CSRCS += $(FONT_PROVIDER_CSRCS)
+
+IMAGE_PROVIDER_CSRCS = interfaces/IDirectFBImageProvider/idirectfbimageprovider_dfiff.c
+CSRCS += $(IMAGE_PROVIDER_CSRCS)
+
+VIDEO_PROVIDER_CSRCS = interfaces/IDirectFBVideoProvider/idirectfbvideoprovider_dfvff.c
+CSRCS += $(VIDEO_PROVIDER_CSRCS)
+
+WINDOW_MANAGER_CSRCS = wm/default/default.c
+CSRCS += $(WINDOW_MANAGER_CSRCS)
+
+config.h:
+	$(Q) echo "#pragma once" > $@; \
+		echo "#define SIZEOF_LONG 8" >> $@
+
+include/directfb_build.h:
+	$(Q) echo "#pragma once" > $@; \
+		echo "#define FLUXED_ARGS_BYTES 1024" >> $@
+
+include/directfb_keynames.h: include/directfb_keyboard.h
+	$(Q) ./include/gen_directfb_keynames.sh $^ > $@
+
+include/directfb_strings.h: include/directfb.h
+	$(Q) ./include/gen_directfb_strings.sh $^ > $@
+
+include/directfb_version.h:
+	$(Q) echo "#pragma once" > $@; \
+		echo "#define DIRECTFB_MAJOR_VERSION 2" >> $@; \
+		echo "#define DIRECTFB_MICRO_VERSION 0" >> $@; \
+		echo "#define DIRECTFB_MINOR_VERSION 0" >> $@
+
+lib/direct/build.h:
+	$(Q) echo "#pragma once" > $@; \
+		echo "#define DIRECT_BUILD_CTORS 0" >> $@; \
+		echo "#define DIRECT_BUILD_DEBUG 0" >> $@; \
+		echo "#define DIRECT_BUILD_DEBUGS 0" >> $@; \
+		echo "#define DIRECT_BUILD_DYNLOAD 0" >> $@; \
+		echo "#define DIRECT_BUILD_MEMCPY_PROBING 0" >> $@; \
+		echo "#define DIRECT_BUILD_NETWORK 0" >> $@; \
+		echo "#define DIRECT_BUILD_OS_NUTTX 1" >> $@; \
+		echo "#define DIRECT_BUILD_SENTINELS 0" >> $@; \
+		echo "#define DIRECT_BUILD_TEXT 0" >> $@; \
+		echo "#define DIRECT_BUILD_TRACE 0" >> $@
+
+lib/fusion/build.h:
+	$(Q) echo "#pragma once" > $@; \
+		echo "#define FUSION_BUILD_MULTI 0" >> $@
+
+src/build.h:
+	$(Q) echo "#pragma once" > $@; \
+		echo "#define DFB_SMOOTH_SCALING 1" >> $@; \
+		echo "#define DIRECTFB_VERSION_VENDOR \"\"" >> $@
+
+FLUXCOMP ?= fluxcomp
+FLUX_ARGS = --call-mode --dispatch-error-abort --identity --include-prefix=core --object-ptrs --static-args-bytes=FLUXED_ARGS_BYTES
+
+src/core/%.c: src/core/%.flux
+	$(FLUXCOMP) $(FLUX_ARGS) -c $^ -o=src/core
+
+context:: config.h include/directfb_build.h include/directfb_keynames.h include/directfb_strings.h include/directfb_version.h lib/direct/build.h lib/fusion/build.h src/build.h $(FLUX_CSRCS)
+
+distclean::
+	$(call DELFILE, config.h)
+	$(call DELFILE, include/directfb_build.h)
+	$(call DELFILE, include/directfb_keynames.h)
+	$(call DELFILE, include/directfb_strings.h)
+	$(call DELFILE, include/directfb_version.h)
+	$(call DELFILE, lib/direct/build.h)
+	$(call DELFILE, lib/fusion/build.h)
+	$(call DELFILE, src/build.h)
+	$(call DELFILE, $(FLUX_CSRCS))
+	$(call DELFILE, $(FLUX_HDRS))
+
+include $(APPDIR)/Application.mk

README

@@ -3,6 +3,8 @@ DirectFB2
 
 DirectFB2 is a fork of DirectFB, a graphics library which was designed with embedded systems in mind.
 
+Linux and NuttX operating systems are supported.
+
 See the file INSTALL for installation instructions.
 
 Enjoy!