build: Support cmake to build and install

CMakeLists.txt

@@ -0,0 +1,30 @@
+project(lv_lib_png
+  HOMEPAGE_URL https://github.com/lvgl/lv_lib_png
+  )
+
+file(GLOB_RECURSE SOURCES *.c)
+add_library(${CMAKE_PROJECT_NAME} STATIC ${SOURCES})
+
+if("${LIB_INSTALL_DIR}" STREQUAL "")
+  set(LIB_INSTALL_DIR "lib")
+endif()
+
+if("${INC_INSTALL_DIR}" STREQUAL "")
+  set(INC_INSTALL_DIR "include/lvgl/${CMAKE_PROJECT_NAME}")
+endif()
+
+file(GLOB LV_DRIVERS_PUBLIC_HEADERS
+  "${CMAKE_SOURCE_DIR}/lv_png.h"
+  "${CMAKE_SOURCE_DIR}/lodepng.h"
+  )
+
+set_target_properties(${CMAKE_PROJECT_NAME} PROPERTIES
+  OUTPUT_NAME ${CMAKE_PROJECT_NAME}
+  ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
+  PUBLIC_HEADER "${LV_DRIVERS_PUBLIC_HEADERS}"
+)
+
+install(TARGETS ${CMAKE_PROJECT_NAME}
+  ARCHIVE DESTINATION "${LIB_INSTALL_DIR}"
+  PUBLIC_HEADER DESTINATION "${INC_INSTALL_DIR}"
+)