lv_conf_common.h

/*
 * Copyright (C) 2026 Kamil Lulko <kamil.lulko@gmail.com>
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * This file is part of oveRTOS.
 */
 
/*
 * Shared LVGL v9 configuration fragment for all oveRTOS boards.
 *
 * Board-specific lv_conf.h files set board-only knobs (color depth, memory
 * pool, OS, rendering buffers, default font, NuttX device flag) and then
 * #include <ove/lv_conf_common.h> to pick up the widgets, themes, layouts,
 * features, and other bits that are uniform across targets.
 *
 * Widget and layout enables live HERE so flipping a feature for one target
 * automatically flips it for all eight boards, removing the 8× drift that
 * otherwise happens every time a new binding wrapper lands.
 *
 * This file must not be included directly outside an lv_conf.h.
 */
 
#ifndef OVE_LV_CONF_COMMON_H
#define OVE_LV_CONF_COMMON_H
 
/*=========================
 * STDLIB WRAPPER SETTINGS
 *=========================*/
 
#define LV_USE_STDLIB_MALLOC LV_STDLIB_BUILTIN
#define LV_USE_STDLIB_STRING LV_STDLIB_BUILTIN
#define LV_USE_STDLIB_SPRINTF LV_STDLIB_BUILTIN
 
#define LV_STDINT_INCLUDE <stdint.h>
#define LV_STDDEF_INCLUDE <stddef.h>
#define LV_STDBOOL_INCLUDE <stdbool.h>
#define LV_INTTYPES_INCLUDE <inttypes.h>
#define LV_LIMITS_INCLUDE <limits.h>
#define LV_STDARG_INCLUDE <stdarg.h>
 
/*====================
 * HAL SETTINGS
 *====================*/
 
#define LV_DEF_REFR_PERIOD 33 /* 30 FPS */
#define LV_DPI_DEF 130
 
/*=======================
 * FEATURE CONFIGURATION
 *=======================*/
 
#define LV_USE_LOG 0
#define LV_USE_ASSERT_NULL 1
#define LV_USE_ASSERT_MALLOC 1
#define LV_USE_ASSERT_STYLE 0
#define LV_USE_ASSERT_MEM_INTEGRITY 0
#define LV_USE_ASSERT_OBJ 0
 
#define LV_ASSERT_HANDLER_INCLUDE <stdint.h>
#define LV_ASSERT_HANDLER \
    while (1)         \
        ;
 
#define LV_USE_REFR_DEBUG 0
#define LV_USE_LAYER_DEBUG 0
#define LV_USE_PARALLEL_DRAW_DEBUG 0
 
#define LV_ENABLE_GLOBAL_CUSTOM 0
 
#define LV_CACHE_DEF_SIZE 0
#define LV_IMAGE_HEADER_CACHE_DEF_CNT 0
 
#define LV_GRADIENT_MAX_STOPS 2
 
#define LV_COLOR_MIX_ROUND_OFS 0
#define LV_OBJ_STYLE_CACHE 0
#define LV_USE_OBJ_ID 0
#define LV_OBJ_ID_AUTO_ASSIGN 0
#define LV_USE_OBJ_ID_BUILTIN 1
#define LV_USE_OBJ_NAME 0
#define LV_USE_OBJ_PROPERTY 0
#define LV_USE_OBJ_PROPERTY_NAME 0
#define LV_USE_GESTURE_RECOGNITION 0
 
/*========================
 * RENDERING (common bits)
 *========================*/
 
/* SW renderer and its support flags live in the board file; these two are
 * identical across every target. */
#define LV_DRAW_BUF_STRIDE_ALIGN 1
#define LV_DRAW_TRANSFORM_USE_MATRIX 0
 
/* GPU drivers — all disabled; boards that want one can override after
 * the include. */
#define LV_USE_DRAW_SDL 0
#define LV_USE_NEMA_GFX 0
#define LV_USE_PXP 0
#define LV_USE_G2D 0
#define LV_USE_DRAW_DAVE2D 0
#define LV_USE_DRAW_VG_LITE 0
#define LV_USE_DRAW_DMA2D 0
#define LV_USE_DRAW_OPENGLES 0
#define LV_USE_PPA 0
#define LV_USE_DRAW_EVE 0
 
/*=====================
 *  COMPILER SETTINGS
 *====================*/
 
#define LV_BIG_ENDIAN_SYSTEM 0
#define LV_ATTRIBUTE_TICK_INC
#define LV_ATTRIBUTE_TIMER_HANDLER
#define LV_ATTRIBUTE_FLUSH_READY
#define LV_ATTRIBUTE_MEM_ALIGN_SIZE 1
#define LV_ATTRIBUTE_MEM_ALIGN
#define LV_ATTRIBUTE_LARGE_CONST
#define LV_ATTRIBUTE_LARGE_RAM_ARRAY
#define LV_ATTRIBUTE_FAST_MEM
#define LV_EXPORT_CONST_INT(int_value) struct _silence_gcc_warning
#define LV_ATTRIBUTE_EXTERN_DATA
#define LV_USE_FLOAT 0
#define LV_USE_MATRIX 0
 
/*==================
 *   FONT USAGE
 *===================*/
 
/* Only the sizes referenced by oveRTOS framework apps (apps/c/example,
 * apps/c/lvgl_benchmark) and external apps (overtos_apps/hiroic): 14, 24, 32.
 * The linker dead-strips unreferenced fonts already, but keeping the enable
 * list honest avoids confusion when reading the config or running stripped-
 * down builds where -Wl,--gc-sections is disabled. */
#define LV_FONT_MONTSERRAT_8 0
#define LV_FONT_MONTSERRAT_10 0
#define LV_FONT_MONTSERRAT_12 0
#define LV_FONT_MONTSERRAT_14 1
#define LV_FONT_MONTSERRAT_16 0
#define LV_FONT_MONTSERRAT_18 0
#define LV_FONT_MONTSERRAT_20 0
#define LV_FONT_MONTSERRAT_22 0
#define LV_FONT_MONTSERRAT_24 1
#define LV_FONT_MONTSERRAT_26 0
#define LV_FONT_MONTSERRAT_28 0
#define LV_FONT_MONTSERRAT_30 0
#define LV_FONT_MONTSERRAT_32 1
#define LV_FONT_MONTSERRAT_34 0
#define LV_FONT_MONTSERRAT_36 0
#define LV_FONT_MONTSERRAT_38 0
#define LV_FONT_MONTSERRAT_40 0
#define LV_FONT_MONTSERRAT_42 0
#define LV_FONT_MONTSERRAT_44 0
#define LV_FONT_MONTSERRAT_46 0
#define LV_FONT_MONTSERRAT_48 0
 
#define LV_FONT_MONTSERRAT_28_COMPRESSED 0
#define LV_FONT_DEJAVU_16_PERSIAN_HEBREW 0
#define LV_FONT_SOURCE_HAN_SANS_SC_14_CJK 0
#define LV_FONT_SOURCE_HAN_SANS_SC_16_CJK 0
#define LV_FONT_UNSCII_8 0
#define LV_FONT_UNSCII_16 0
 
#define LV_FONT_CUSTOM_DECLARE
 
/* LV_FONT_DEFAULT is board-specific: desktop boards pick montserrat_32,
 * embedded boards pick montserrat_14. Define it in the including file
 * before this fragment (either order works — no conflict). */
 
#define LV_FONT_FMT_TXT_LARGE 0
#define LV_USE_FONT_COMPRESSED 0
#define LV_USE_FONT_PLACEHOLDER 1
 
/*=================
 *  TEXT SETTINGS
 *=================*/
 
#define LV_TXT_ENC LV_TXT_ENC_UTF8
#define LV_TXT_BREAK_CHARS " ,.;:-_)]}"
#define LV_TXT_LINE_BREAK_LONG_LEN 0
#define LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN 3
#define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3
#define LV_USE_BIDI 0
#define LV_USE_ARABIC_PERSIAN_CHARS 0
 
/*==================
 * WIDGETS
 *==================*/
 
#define LV_WIDGETS_HAS_DEFAULT_VALUE 1
 
#define LV_USE_ANIMIMG 0
#define LV_USE_ARC 1
#define LV_USE_BAR 1
#define LV_USE_BUTTON 1
#define LV_USE_BUTTONMATRIX 1
#define LV_USE_CALENDAR 1
#define LV_USE_CANVAS 1
#define LV_USE_CHART 1
#define LV_USE_CHECKBOX 1
#define LV_USE_DROPDOWN 1
#define LV_USE_IMAGE 1
#define LV_USE_IMAGEBUTTON 0
#define LV_USE_KEYBOARD 1
#define LV_USE_LED 1
#define LV_USE_LINE 1
#define LV_USE_LIST 1
#define LV_USE_LOTTIE 0
#define LV_USE_MENU 0
#define LV_USE_MSGBOX 1
#define LV_USE_ROLLER 1
#define LV_USE_SCALE 1
#define LV_USE_SLIDER 1
#define LV_USE_SPAN 0
#define LV_USE_SPINBOX 1
#define LV_USE_SPINNER 1
#define LV_USE_SWITCH 1
#define LV_USE_TEXTAREA 1
#define LV_USE_TABLE 1
#define LV_USE_TABVIEW 1
#define LV_USE_TILEVIEW 0
#define LV_USE_WIN 0
 
#define LV_USE_LABEL 1
#if LV_USE_LABEL
#define LV_LABEL_TEXT_SELECTION 0
#define LV_LABEL_LONG_TXT_HINT 0
#define LV_LABEL_WAIT_CHAR_COUNT 3
#endif
 
/*==================
 * THEMES
 *==================*/
 
#define LV_USE_THEME_DEFAULT 1
#define LV_USE_THEME_SIMPLE 0
#define LV_USE_THEME_MONO 0
 
/*==================
 * LAYOUTS
 *==================*/
 
#define LV_USE_FLEX 1
#define LV_USE_GRID 1
 
/*====================
 * 3RD PARTY LIBRARIES
 *====================*/
 
#define LV_FS_DEFAULT_DRIVER_LETTER '\0'
 
#define LV_USE_FS_STDIO 0
#define LV_USE_FS_POSIX 0
#define LV_USE_FS_WIN32 0
#define LV_USE_FS_FATFS 0
#define LV_USE_FS_MEMFS 0
#define LV_USE_FS_LITTLEFS 0
#define LV_USE_FS_ARDUINO_ESP_LITTLEFS 0
#define LV_USE_FS_ARDUINO_SD 0
 
#define LV_USE_LODEPNG 0
#define LV_USE_LIBPNG 0
#define LV_USE_BMP 0
#define LV_USE_TJPGD 0
#define LV_USE_LIBJPEG_TURBO 0
#define LV_USE_GIF 0
#define LV_BIN_DECODER_RAM_LOAD 0
#define LV_USE_RLE 0
#define LV_USE_QRCODE 0
#define LV_USE_BARCODE 0
#define LV_USE_FREETYPE 0
#define LV_USE_TINY_TTF 0
#define LV_USE_RLOTTIE 0
#define LV_USE_VECTOR_GRAPHIC 0
#define LV_USE_THORVG_INTERNAL 0
#define LV_USE_THORVG_EXTERNAL 0
#define LV_USE_LZ4_INTERNAL 0
#define LV_USE_LZ4_EXTERNAL 0
#define LV_USE_FFMPEG 0
 
/*==================
 * DEVICES (common — NuttX flag is board-specific)
 *==================*/
 
#define LV_USE_SDL 0
#define LV_USE_X11 0
#define LV_USE_WAYLAND 0
#define LV_USE_LINUX_FBDEV 0
#define LV_USE_LINUX_DRM 0
#define LV_USE_TFT_ESPI 0
#define LV_USE_EVDEV 0
#define LV_USE_LIBINPUT 0
#define LV_USE_ST7735 0
#define LV_USE_ST7789 0
#define LV_USE_ST7796 0
#define LV_USE_ILI9341 0
#define LV_USE_GENERIC_MIPI 0
#define LV_USE_RENESAS_GLCDC 0
#define LV_USE_WINDOWS 0
#define LV_USE_OPENGLES 0
#define LV_USE_QNX 0
 
/* Boards that embed LVGL via the NuttX driver set LV_USE_NUTTX 1 before
 * including this fragment; guard the default so the override sticks. */
#ifndef LV_USE_NUTTX
#define LV_USE_NUTTX 0
#endif
 
/*==================
 * OTHERS
 *==================*/
 
#define LV_USE_SNAPSHOT 0
#define LV_USE_SYSMON 1
#if LV_USE_SYSMON
#define LV_USE_PERF_MONITOR 1
#if LV_USE_PERF_MONITOR
#define LV_USE_PERF_MONITOR_POS LV_ALIGN_BOTTOM_RIGHT
#define LV_USE_PERF_MONITOR_LOG_MODE 1
#endif
#endif
#define LV_USE_PROFILER 0
#define LV_USE_MONKEY 0
#define LV_USE_GRIDNAV 0
#define LV_USE_FRAGMENT 0
#define LV_USE_IMGFONT 0
#define LV_USE_OBSERVER 1
#define LV_USE_IME_PINYIN 0
#define LV_USE_FILE_EXPLORER 0
 
/*==================
 * EXAMPLES / DEMOS
 *==================*/
 
#define LV_BUILD_EXAMPLES 0
#define LV_USE_DEMO_WIDGETS 0
#define LV_USE_DEMO_KEYPAD_AND_ENCODER 0
#ifndef LV_USE_DEMO_BENCHMARK
#define LV_USE_DEMO_BENCHMARK 0
#endif
#define LV_USE_DEMO_RENDER 0
#define LV_USE_DEMO_STRESS 0
#define LV_USE_DEMO_MUSIC 0
#define LV_USE_DEMO_FLEX_LAYOUT 0
#define LV_USE_DEMO_MULTILANG 0
#define LV_USE_DEMO_TRANSFORM 0
#define LV_USE_DEMO_SCROLL 0
#define LV_USE_DEMO_VECTOR_GRAPHIC 0
 
#endif /* OVE_LV_CONF_COMMON_H */