From 6d90c7ebca9723cd9c75351d50ff548f60d7da27 Mon Sep 17 00:00:00 2001
From: Gabriel Lima <gabrielmartinslima@gmail.com>
Date: Thu, 9 Apr 2026 16:07:34 -0300
Subject: [PATCH] Add GfxCanvas as buildroot package

---
 Config.in                            |  1 +
 configs/raspberrypi_common_defconfig |  1 +
 package/gfxcanvas/Config.in          | 14 +++++++
 package/gfxcanvas/S99gfxcanvas       | 60 ++++++++++++++++++++++++++++
 package/gfxcanvas/gfxcanvas.mk       | 20 ++++++++++
 5 files changed, 96 insertions(+)
 create mode 100644 package/gfxcanvas/Config.in
 create mode 100644 package/gfxcanvas/S99gfxcanvas
 create mode 100644 package/gfxcanvas/gfxcanvas.mk

diff --git a/Config.in b/Config.in
index f83650c..20a7faf 100644
--- a/Config.in
+++ b/Config.in
@@ -2,5 +2,6 @@ menu "RPI Common packages"
 
 source "$BR2_EXTERNAL_RPI_COMMON_PATH/package/my-shared-lib/Config.in"
 source "$BR2_EXTERNAL_RPI_COMMON_PATH/package/my-common-tool/Config.in"
+source "$BR2_EXTERNAL_RPI_COMMON_PATH/package/gfxcanvas/Config.in"
 
 endmenu
diff --git a/configs/raspberrypi_common_defconfig b/configs/raspberrypi_common_defconfig
index f4497b7..7b96383 100644
--- a/configs/raspberrypi_common_defconfig
+++ b/configs/raspberrypi_common_defconfig
@@ -56,3 +56,4 @@ BR2_PACKAGE_HOST_DOSFSTOOLS=y
 BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_KMOD_XZ=y
 BR2_PACKAGE_HOST_MTOOLS=y
+BR2_PACKAGE_GFXCANVAS=y
diff --git a/package/gfxcanvas/Config.in b/package/gfxcanvas/Config.in
new file mode 100644
index 0000000..9e554ba
--- /dev/null
+++ b/package/gfxcanvas/Config.in
@@ -0,0 +1,14 @@
+config BR2_PACKAGE_GFXCANVAS
+	bool "gfxcanvas"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_13
+	help
+	  Small C++ framebuffer graphics application that draws an
+	  info screen (date/time, hostname, network addresses) on a
+	  Linux framebuffer device. Intended for SSD1306-class OLEDs
+	  exposed as /dev/fbN via fbtft.
+
+	  https://git.gmlima.com/Gabriel/GfxCanvas
+
+comment "gfxcanvas needs a toolchain w/ C++, gcc >= 13"
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_13
diff --git a/package/gfxcanvas/S99gfxcanvas b/package/gfxcanvas/S99gfxcanvas
new file mode 100644
index 0000000..bf38ef8
--- /dev/null
+++ b/package/gfxcanvas/S99gfxcanvas
@@ -0,0 +1,60 @@
+#!/bin/sh
+#
+# Start gfxcanvas info display
+#
+
+DAEMON="gfxcanvas"
+DAEMON_PATH="/usr/bin/$DAEMON"
+DAEMON_ARGS="/dev/fb1"
+PIDFILE="/var/run/$DAEMON.pid"
+
+start() {
+	printf 'Starting %s: ' "$DAEMON"
+	# shellcheck disable=SC2086
+	start-stop-daemon -S -q -m -b -p "$PIDFILE" \
+		-x "$DAEMON_PATH" -- $DAEMON_ARGS
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+stop() {
+	printf 'Stopping %s: ' "$DAEMON"
+	start-stop-daemon -K -q -p "$PIDFILE"
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		rm -f "$PIDFILE"
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+restart() {
+	stop
+	sleep 1
+	start
+}
+
+case "$1" in
+	start)
+		start
+		;;
+	stop)
+		stop
+		;;
+	restart|reload)
+		restart
+		;;
+	*)
+		echo "Usage: $0 {start|stop|restart}"
+		exit 1
+		;;
+esac
+
+exit $?
diff --git a/package/gfxcanvas/gfxcanvas.mk b/package/gfxcanvas/gfxcanvas.mk
new file mode 100644
index 0000000..d213834
--- /dev/null
+++ b/package/gfxcanvas/gfxcanvas.mk
@@ -0,0 +1,20 @@
+################################################################################
+#
+# gfxcanvas
+#
+################################################################################
+
+GFXCANVAS_VERSION = 0.1
+GFXCANVAS_SITE = https://git.gmlima.com/Gabriel/GfxCanvas.git
+GFXCANVAS_SITE_METHOD = git
+GFXCANVAS_LICENSE = GPL-3.0
+GFXCANVAS_LICENSE_FILES = LICENSE
+
+GFXCANVAS_CONF_OPTS = -DPROJECT_NAME=gfxcanvas
+
+define GFXCANVAS_INSTALL_INIT_SYSV
+	$(INSTALL) -D -m 0755 $(GFXCANVAS_PKGDIR)/S99gfxcanvas \
+		$(TARGET_DIR)/etc/init.d/S99gfxcanvas
+endef
+
+$(eval $(cmake-package))