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fix(CMakeLists): add options to select backend #52

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fix(CMakeLists): add options to select backend #52

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bd4545c
fix(CMakeLists): add options to select backend
js214 Jul 26, 2024
0edf736
fix(CMakeLists): link SDL2 libraries when USE_SDL2
js214 Jul 26, 2024
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46 changes: 35 additions & 11 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,24 +1,48 @@
cmake_minimum_required(VERSION 3.10)
project(lvgl)
project(lvgl LANGUAGES C)

set(CMAKE_C_STANDARD 99)#C99 # lvgl officially support C99 and above
set(CMAKE_CXX_STANDARD 17)#C17
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

add_subdirectory(lvgl)
target_include_directories(lvgl PUBLIC ${PROJECT_SOURCE_DIR})

add_executable(main main.c mouse_cursor_icon.c)

include(${CMAKE_CURRENT_LIST_DIR}/lvgl/tests/FindLibDRM.cmake)
include_directories(${Libdrm_INCLUDE_DIRS})

find_package(SDL2)
find_package(SDL2_image)
include_directories(${SDL2_INCLUDE_DIRS} ${SDL2_IMAGE_INCLUDE_DIRS})
option(USE_FBDEV "Use the framebuffer backend" ON)
option(USE_DRM "Use the DRM backend" OFF)
option(USE_SDL2 "Use the SDL2 backend" OFF)
option(USE_THOR "Link with the ThorVG vector grapics library" OFF)

if(USE_FBDEV)
add_compile_definitions(LV_USE_LINUX_FBDEV=1)
elseif(USE_DRM)
add_compile_definitions(LV_USE_LINUX_FBDEV=0)
add_compile_definitions(LV_USE_LINUX_DRM=1)
include(${CMAKE_CURRENT_LIST_DIR}/lvgl/tests/FindLibDRM.cmake)
include_directories(${Libdrm_INCLUDE_DIRS})
target_link_libraries(main ${Libdrm_LIBRARIES})
elseif(USE_SDL2)
add_compile_definitions(LV_USE_LINUX_FBDEV=0)
add_compile_definitions(LV_USE_SDL=1)
find_package(SDL2)
target_link_libraries(main ${SDL2_LIBRARIES} ${SDL2_IMAGE_LIBRARIES})
include_directories(${SDL2_INCLUDE_DIRS} ${SDL2_IMAGE_INCLUDE_DIRS})
endif()

if(USE_THOR)
enable_language(CXX)
target_link_libraries(main lvgl::thorvg)
add_compile_definitions(LV_USE_THORVG_INTERNAL=1)
else()
add_compile_definitions(LV_USE_THORVG_INTERNAL=0)
endif()

add_subdirectory(lvgl EXCLUDE_FROM_ALL)
target_include_directories(lvgl PUBLIC ${PROJECT_SOURCE_DIR})

target_link_libraries(main lvgl lvgl::examples lvgl::demos lvgl::thorvg ${SDL2_LIBRARIES} ${SDL2_IMAGE_LIBRARIES} ${Libdrm_LIBRARIES} m pthread)
target_link_libraries(main lvgl lvgl::examples lvgl::demos m pthread)
add_custom_target (run COMMAND ${EXECUTABLE_OUTPUT_PATH}/main DEPENDS main)

set_target_properties(main PROPERTIES OUTPUT_NAME lv_port_linux)
install(TARGETS main DESTINATION local/bin)
10 changes: 9 additions & 1 deletion lv_conf.h
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Original file line number Diff line number Diff line change
Expand Up @@ -693,7 +693,9 @@
#define LV_USE_VECTOR_GRAPHIC 1

/* Enable ThorVG (vector graphics library) from the src/libs folder */
#define LV_USE_THORVG_INTERNAL 1
#ifndef LV_USE_THORVG_INTERNAL
#define LV_USE_THORVG_INTERNAL 0
#endif // LV_USE_THORVG_INTERNAL

/* Enable ThorVG by assuming that its installed and linked to the project */
#define LV_USE_THORVG_EXTERNAL 0
Expand Down Expand Up @@ -829,7 +831,9 @@
*==================*/

/*Use SDL to open window on PC and handle mouse and keyboard*/
#ifndef LV_USE_SDL
#define LV_USE_SDL 0
#endif // LV_USE_SDL
#if LV_USE_SDL
#define LV_SDL_INCLUDE_PATH <SDL2/SDL.h>
#define LV_SDL_RENDER_MODE LV_DISPLAY_RENDER_MODE_DIRECT /*LV_DISPLAY_RENDER_MODE_DIRECT is recommended for best performance*/
Expand All @@ -850,7 +854,9 @@
#endif

/*Driver for /dev/fb*/
#ifndef LV_USE_LINUX_FBDEV
#define LV_USE_LINUX_FBDEV 1
#endif // LV_USE_LINUX_FBDEV
#if LV_USE_LINUX_FBDEV
#define LV_LINUX_FBDEV_BSD 0
#define LV_LINUX_FBDEV_RENDER_MODE LV_DISPLAY_RENDER_MODE_DIRECT
Expand Down Expand Up @@ -880,7 +886,9 @@
#endif

/*Driver for /dev/dri/card*/
#ifndef LV_USE_LINUX_DRM
#define LV_USE_LINUX_DRM 0
#endif // LV_USE_LINUX_DRM

/*Interface for TFT_eSPI*/
#define LV_USE_TFT_ESPI 0
Expand Down