1 # cmake file for libpng 2 3 if (NOT DE_DEFS) 4 message(FATAL_ERROR "Include Defs.cmake") 5 endif () 6 7 if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/png.h") 8 set(DEFAULT_PNG_SRC_PATH ${CMAKE_CURRENT_SOURCE_DIR}) 9 else () 10 # Assume build inside Android source tree 11 set(DEFAULT_PNG_SRC_PATH "../libpng") 12 endif () 13 14 set(PNG_SRC_PATH ${DEFAULT_PNG_SRC_PATH} CACHE STRING "Path to libpng source tree") 15 16 if (IS_ABSOLUTE ${PNG_SRC_PATH}) 17 set(PNG_ABS_PATH ${PNG_SRC_PATH}) 18 else () 19 set(PNG_ABS_PATH "${CMAKE_SOURCE_DIR}/${PNG_SRC_PATH}") 20 endif () 21 22 set(PNG_SRCS 23 ${PNG_ABS_PATH}/png.h 24 ${PNG_ABS_PATH}/pngconf.h 25 ${PNG_ABS_PATH}/png.c 26 ${PNG_ABS_PATH}/pngset.c 27 ${PNG_ABS_PATH}/pngget.c 28 ${PNG_ABS_PATH}/pngrutil.c 29 ${PNG_ABS_PATH}/pngtrans.c 30 ${PNG_ABS_PATH}/pngwutil.c 31 ${PNG_ABS_PATH}/pngread.c 32 ${PNG_ABS_PATH}/pngrio.c 33 ${PNG_ABS_PATH}/pngwio.c 34 ${PNG_ABS_PATH}/pngwrite.c 35 ${PNG_ABS_PATH}/pngrtran.c 36 ${PNG_ABS_PATH}/pngwtran.c 37 ${PNG_ABS_PATH}/pngmem.c 38 ${PNG_ABS_PATH}/pngerror.c 39 ${PNG_ABS_PATH}/pngpread.c 40 ) 41 42 if (DE_CPU_IS_ARM_64) 43 # armv8-a has always neon 44 set(PNG_SRCS 45 ${PNG_SRCS} 46 ${PNG_ABS_PATH}/arm/arm_init.c 47 ${PNG_ABS_PATH}/arm/filter_neon_intrinsics.c 48 ${PNG_ABS_PATH}/arm/filter_neon.S 49 ) 50 endif () 51 52 if (DE_DEBUG EQUAL 1) 53 add_definitions(-DPNG_DEBUG) 54 endif () 55 56 if (DE_OS_IS_UNIX) 57 # for snprintf() 58 add_definitions(-D_XOPEN_SOURCE=600) 59 endif () 60 61 set(CMAKE_C_FLAGS ${DE_3RD_PARTY_C_FLAGS}) 62 63 add_library(png STATIC ${PNG_SRCS}) 64 target_link_libraries(png ${ZLIB_LIBRARY}) 65 66 set(PNG_INCLUDE_PATH ${PNG_ABS_PATH} PARENT_SCOPE) 67 set(PNG_LIBRARY png PARENT_SCOPE) 68
