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samples/modules: Add LVGL demo sample
Adds a sample which allows to build the LVGL upstream demo applications (music, benchmark, stress). Resolves issue #62744. Signed-off-by: Fabian Blatz <[email protected]>
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‎samples/modules/lvgl/demos/CMakeLists.txt

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# Copyright (c) 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(lvgl_sample)
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set(LVGL_DIR ${ZEPHYR_LVGL_MODULE_DIR})
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FILE(GLOB app_sources src/*.c)
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target_sources(app PRIVATE ${app_sources})
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target_include_directories(app PRIVATE
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${LVGL_DIR}/demos/
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)
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target_sources_ifdef(CONFIG_LV_USE_DEMO_MUSIC app PRIVATE
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${LVGL_DIR}/demos/music/lv_demo_music_list.c
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${LVGL_DIR}/demos/music/lv_demo_music.c
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${LVGL_DIR}/demos/music/lv_demo_music_main.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_next.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_wave_top_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_4_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_4.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_corner_right.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_cover_1.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_slider_knob_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_3.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_pause.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_pause_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_wave_bottom_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_2_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_list_play_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_wave_top.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_play_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_cover_1_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_wave_bottom.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_corner_left_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_play.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_list_border.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_2.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_next_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_list_play.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_list_border_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_rnd.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_cover_3.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_prev_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_loop.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_1.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_slider_knob.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_corner_right_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_corner_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_corner_left.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_cover_2_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_3_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_icon_1_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_cover_2.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_prev.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_rnd_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_list_pause_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_cover_3_large.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_list_pause.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_logo.c
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${LVGL_DIR}/demos/music/assets/img_lv_demo_music_btn_loop_large.c
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)
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target_sources_ifdef(CONFIG_LV_USE_DEMO_BENCHMARK app PRIVATE
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${LVGL_DIR}/demos/benchmark/lv_demo_benchmark.c
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${LVGL_DIR}/demos/benchmark/assets/img_benchmark_cogwheel_indexed16.c
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${LVGL_DIR}/demos/benchmark/assets/lv_font_bechmark_montserrat_28_compr_az.c.c
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${LVGL_DIR}/demos/benchmark/assets/lv_font_bechmark_montserrat_16_compr_az.c.c
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${LVGL_DIR}/demos/benchmark/assets/img_benchmark_cogwheel_argb.c
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${LVGL_DIR}/demos/benchmark/assets/img_benchmark_cogwheel_alpha16.c
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${LVGL_DIR}/demos/benchmark/assets/img_benchmark_cogwheel_rgb.c
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${LVGL_DIR}/demos/benchmark/assets/lv_font_bechmark_montserrat_12_compr_az.c.c
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${LVGL_DIR}/demos/benchmark/assets/img_benchmark_cogwheel_chroma_keyed.c
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${LVGL_DIR}/demos/benchmark/assets/img_benchmark_cogwheel_rgb565a8.c
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)
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target_sources_ifdef(CONFIG_LV_USE_DEMO_STRESS app PRIVATE
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${LVGL_DIR}/demos/stress/lv_demo_stress.c
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)

‎samples/modules/lvgl/demos/Kconfig

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# Copyright (c) 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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choice LV_Z_DEMO
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prompt "LVGL demo to build"
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default LV_Z_DEMO_MUSIC
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help
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Demo application to build.
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config LV_Z_DEMO_MUSIC
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bool "LVGL music demo"
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select LV_USE_DEMO_MUSIC
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help
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Build music player demo application.
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config LV_Z_DEMO_BENCHMARK
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bool "LVGL benchmark demo"
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select LV_USE_DEMO_BENCHMARK
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help
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Build benchmarking demo application.
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config LV_Z_DEMO_STRESS
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bool "LVGL stress demo"
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select LV_USE_DEMO_STRESS
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help
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Build stress testing demo application.
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endchoice
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source "Kconfig.zephyr"

‎samples/modules/lvgl/demos/README.rst

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.. zephyr:code-sample:: lvgl-demos
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:name: LVGL demos
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:relevant-api: display_interface
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Run LVGL built-in demos.
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Overview
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********
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A sample showcasing upstream LVGL demos.
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* Music
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The music player demo shows what kind of modern, smartphone-like user interfaces can be created on LVGL.
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* Benchmark
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The benchmark demo tests the performance in various cases. For example rectangle, border, shadow, text, image blending, image transformation, blending modes, etc.
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* Stress
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A stress test for LVGL. It contains a lot of object creation, deletion, animations, styles usage, and so on. It can be used if there is any memory corruption during heavy usage or any memory leaks.
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Requirements
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************
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* A board with display, ideally with 480x272 resolution or higher.
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Building and Running
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********************
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These demos can be built as follows:
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.. zephyr-app-commands::
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:zephyr-app: samples/modules/lvgl/demos
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:host-os: unix
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:board: native_posix
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:gen-args: -DCONFIG_LV_Z_DEMO_MUSIC=y
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:goals: run
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:compact:
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.. zephyr-app-commands::
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:zephyr-app: samples/modules/lvgl/demos
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:host-os: unix
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:board: native_posix
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:gen-args: -DCONFIG_LV_Z_DEMO_BENCHMARK=y
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:goals: run
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:compact:
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.. zephyr-app-commands::
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:zephyr-app: samples/modules/lvgl/demos
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:host-os: unix
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:board: native_posix
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:gen-args: -DCONFIG_LV_Z_DEMO_STRESS=y
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:goals: run
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:compact:

‎samples/modules/lvgl/demos/boards/m5stack_core2.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_MAIN_STACK_SIZE=4096

‎samples/modules/lvgl/demos/boards/mimxrt1060_evk.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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# Enable PXP DMA engine and set rotation angle to 0 degrees.
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# This allows us to verify the DMA driver functions without altering
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# the output image
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CONFIG_DMA=y
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CONFIG_MCUX_ELCDIF_PXP=y

‎samples/modules/lvgl/demos/boards/mimxrt1170_evk_cm7.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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# Enable PXP DMA engine and set rotation angle to 0 degrees.
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# This allows us to verify the DMA driver functions without altering
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# the output image
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CONFIG_DMA=y
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CONFIG_MCUX_ELCDIF_PXP=y

‎samples/modules/lvgl/demos/boards/native_posix.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_LV_COLOR_DEPTH_32=y

‎samples/modules/lvgl/demos/boards/native_posix.overlay

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/*
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* Copyright (c) 2023, Fabian Blatz <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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&sdl_dc {
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compatible = "zephyr,sdl-dc";
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height = <272>;
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width = <480>;
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};

‎samples/modules/lvgl/demos/boards/native_posix_64.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_LV_COLOR_DEPTH_32=y

‎samples/modules/lvgl/demos/boards/native_posix_64.overlay

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/*
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* Copyright (c) 2023, Fabian Blatz <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "native_posix.overlay"

‎samples/modules/lvgl/demos/boards/native_sim.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_LV_COLOR_DEPTH_32=y

‎samples/modules/lvgl/demos/boards/native_sim.overlay

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/*
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* Copyright (c) 2023, Fabian Blatz <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "native_posix.overlay"

‎samples/modules/lvgl/demos/boards/native_sim_64.conf

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# Copyright 2023 Fabian Blatz <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_LV_COLOR_DEPTH_32=y

‎samples/modules/lvgl/demos/boards/native_sim_64.overlay

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/*
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* Copyright (c) 2023, Fabian Blatz <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "native_sim.overlay"

‎samples/modules/lvgl/demos/prj.conf

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CONFIG_MAIN_STACK_SIZE=2048
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CONFIG_LOG=y
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CONFIG_SHELL=y
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CONFIG_LVGL=y
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CONFIG_LV_Z_MEM_POOL_NUMBER_BLOCKS=8
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CONFIG_LV_Z_SHELL=y
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CONFIG_LV_USE_MONKEY=y
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CONFIG_DISPLAY=y
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CONFIG_INPUT=y
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CONFIG_LV_FONT_MONTSERRAT_12=y
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CONFIG_LV_FONT_MONTSERRAT_14=y
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CONFIG_LV_FONT_MONTSERRAT_16=y
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# Benchmark Demo
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CONFIG_LV_USE_FONT_COMPRESSED=y

‎samples/modules/lvgl/demos/sample.yaml

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sample:
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description: LVGL sample, containing all upstream demos
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name: LVGL demos
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common:
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modules:
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- lvgl
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harness: none
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filter: dt_chosen_enabled("zephyr,display")
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tags: samples lvgl display gui
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tests:
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sample.modules.lvgl.demo_music:
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extra_configs:
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- CONFIG_LV_Z_DEMO_MUSIC=y
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sample.modules.lvgl.demo_benchmark:
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extra_configs:
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- CONFIG_LV_Z_DEMO_BENCHMARK=y
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sample.modules.lvgl.demo_stress:
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extra_configs:
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- CONFIG_LV_Z_DEMO_STRESS=y

‎samples/modules/lvgl/demos/src/main.c

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/*
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* Copyright (c) 2023 Fabian Blatz <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/drivers/display.h>
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#include <lvgl.h>
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#include <lv_demos.h>
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#define LOG_LEVEL CONFIG_LOG_DEFAULT_LEVEL
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(app);
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int main(void)
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{
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const struct device *display_dev;
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display_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));
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if (!device_is_ready(display_dev)) {
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LOG_ERR("Device not ready, aborting test");
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return 0;
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}
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#if defined(CONFIG_LV_USE_DEMO_MUSIC)
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lv_demo_music();
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#elif defined(CONFIG_LV_USE_DEMO_BENCHMARK)
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lv_demo_benchmark();
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#elif defined(CONFIG_LV_USE_DEMO_STRESS)
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lv_demo_stress();
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#else
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#error Enable one of the demos CONFIG_LV_USE_DEMO_MUSIC, CONFIG_LV_USE_DEMO_BENCHMARK \
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or CONFIG_LV_USE_DEMO_STRESS.
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#endif
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lv_task_handler();
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display_blanking_off(display_dev);
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while (1) {
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k_msleep(lv_task_handler());
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}
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return 0;
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}

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