external/libpng/CMakeLists.txt

   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}/src/png.h")
   8         set(DEFAULT_PNG_SRC_PATH ${CMAKE_CURRENT_SOURCE_DIR}/src)
   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 OR DE_OS_IS_QNX)
  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)