| |
| # CMakeLists.txt - CMake lists for libpng |
| # |
| # Copyright (c) 2018-2024 Cosmin Truta. |
| # Copyright (c) 2007-2018 Glenn Randers-Pehrson. |
| # Originally written by Christian Ehrlicher, 2007. |
| # |
| # Use, modification and distribution are subject to |
| # the same licensing terms and conditions as libpng. |
| # Please see the copyright notice in png.h or visit |
| # http://libpng.org/pub/png/src/libpng-LICENSE.txt |
| # |
| # For copyright and licensing purposes, please see |
| # the accompanying file scripts/cmake/AUTHORS.md |
| # |
| # SPDX-License-Identifier: libpng-2.0 |
| |
| cmake_minimum_required(VERSION 3.6) |
| |
| set(PNGLIB_MAJOR 1) |
| set(PNGLIB_MINOR 6) |
| set(PNGLIB_REVISION 41) |
| #set(PNGLIB_SUBREVISION 0) |
| set(PNGLIB_SUBREVISION "git") |
| set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_REVISION}) |
| set(PNGLIB_ABI_VERSION ${PNGLIB_MAJOR}${PNGLIB_MINOR}) |
| set(PNGLIB_SHARED_VERSION ${PNGLIB_ABI_VERSION}.${PNGLIB_REVISION}.${PNGLIB_SUBREVISION}) |
| |
| project(libpng |
| VERSION ${PNGLIB_VERSION} |
| LANGUAGES C ASM) |
| |
| if(POLICY CMP0074) |
| # Allow find_package() to use the ZLIB_ROOT variable, if available. |
| cmake_policy(SET CMP0074 NEW) |
| endif() |
| |
| include(CheckCSourceCompiles) |
| include(GNUInstallDirs) |
| |
| # Allow the users to specify an application-specific API prefix for libpng |
| # vendoring purposes. A standard libpng build should have no such prefix. |
| set(PNG_PREFIX "" |
| CACHE STRING "Prefix to prepend to the API function names") |
| |
| # Allow the users to override the postfix appended to debug library file names. |
| # Previously, we used to set CMAKE_DEBUG_POSTFIX globally. That variable should |
| # not be cached, however, because doing so would affect all projects processed |
| # after libpng, in unexpected and undesirable ways. |
| set(PNG_DEBUG_POSTFIX "d" |
| CACHE STRING "Postfix to append to library file names under the Debug configuration") |
| |
| # Allow the users to import their own extra configuration settings. |
| set(DFA_XTRA "" |
| CACHE FILEPATH "File containing extra configuration settings") |
| |
| # Allow the users to switch on/off various library build types. |
| option(PNG_SHARED "Build libpng as a shared library" ON) |
| option(PNG_STATIC "Build libpng as a static library" ON) |
| if(APPLE) |
| option(PNG_FRAMEWORK "Build libpng as a framework bundle" ON) |
| endif() |
| |
| # Allow the users to switch on/off the auxiliary build and test artifacts. |
| # NOTE: These artifacts are NOT part of libpng proper, and are subject to change at any time. |
| option(PNG_TESTS "Build the libpng tests" ON) |
| option(PNG_TOOLS "Build the libpng tools" ON) |
| |
| # Maintain backwards compatibility with the deprecated option PNG_EXECUTABLES. |
| option(PNG_EXECUTABLES "[Deprecated; please use PNG_TOOLS]" ON) |
| if(NOT PNG_EXECUTABLES) |
| message(DEPRECATION "The option PNG_EXECUTABLES has been deprecated in favour of PNG_TOOLS") |
| if(PNG_TOOLS) |
| message(AUTHOR_WARNING |
| "Setting PNG_TOOLS to ${PNG_EXECUTABLES}, to stay compatible with PNG_EXECUTABLES") |
| set(PNG_TOOLS "${PNG_EXECUTABLES}") |
| endif() |
| endif() |
| |
| # Allow the users to configure various compilation options. |
| option(PNG_DEBUG "Enable debug output" OFF) |
| option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON) |
| |
| # Allow the users to specify a custom location of zlib. |
| # This option is deprecated, and no longer needed with CMake 3.12 and newer. |
| # Under the CMake policy CMP0074, if zlib is being built alongside libpng as a |
| # subproject, its location can be passed on to CMake via the ZLIB_ROOT variable. |
| option(PNG_BUILD_ZLIB "Custom zlib location, else find_package is used" OFF) |
| if(NOT PNG_BUILD_ZLIB) |
| find_package(ZLIB REQUIRED) |
| elseif(POLICY CMP0074) |
| # TODO: Remove the policy check if CMake version 3.12 or greater becomes the minimum required. |
| if("x${ZLIB_ROOT}" STREQUAL "x") |
| message(DEPRECATION |
| "The option PNG_BUILD_ZLIB has been deprecated; please use ZLIB_ROOT instead") |
| else() |
| message(SEND_ERROR |
| "The option PNG_BUILD_ZLIB=${PNG_BUILD_ZLIB} and " |
| "the variable ZLIB_ROOT=\"${ZLIB_ROOT}\" are mutually exclusive") |
| endif() |
| endif() |
| |
| if(UNIX AND NOT APPLE AND NOT BEOS AND NOT HAIKU AND NOT EMSCRIPTEN) |
| find_library(M_LIBRARY m) |
| if(M_LIBRARY) |
| set(M_LIBRARY m) |
| else() |
| set(M_LIBRARY "") |
| endif() |
| else() |
| # libm is not available or not needed. |
| endif() |
| |
| # CMake currently sets CMAKE_SYSTEM_PROCESSOR to one of x86_64 or arm64 on macOS, |
| # based upon the OS architecture, not the target architecture. As such, we need |
| # to check CMAKE_OSX_ARCHITECTURES to identify which hardware-specific flags to |
| # enable. Note that this will fail if you attempt to build a universal binary in |
| # a single CMake invocation. |
| if (APPLE AND CMAKE_OSX_ARCHITECTURES) |
| set(TARGET_ARCH ${CMAKE_OSX_ARCHITECTURES}) |
| else() |
| set(TARGET_ARCH ${CMAKE_SYSTEM_PROCESSOR}) |
| endif() |
| |
| if(PNG_HARDWARE_OPTIMIZATIONS) |
| |
| # Set definitions and sources for ARM. |
| if(TARGET_ARCH MATCHES "^(ARM|arm|aarch)") |
| if(TARGET_ARCH MATCHES "^(ARM64|arm64|aarch64)") |
| set(PNG_ARM_NEON_POSSIBLE_VALUES on off) |
| set(PNG_ARM_NEON "on" |
| CACHE STRING "Enable ARM NEON optimizations: on|off; on is default") |
| else() |
| set(PNG_ARM_NEON_POSSIBLE_VALUES check on off) |
| set(PNG_ARM_NEON "off" |
| CACHE STRING "Enable ARM NEON optimizations: check|on|off; off is default") |
| endif() |
| set_property(CACHE PNG_ARM_NEON |
| PROPERTY STRINGS ${PNG_ARM_NEON_POSSIBLE_VALUES}) |
| list(FIND PNG_ARM_NEON_POSSIBLE_VALUES ${PNG_ARM_NEON} index) |
| if(index EQUAL -1) |
| message(FATAL_ERROR "PNG_ARM_NEON must be one of [${PNG_ARM_NEON_POSSIBLE_VALUES}]") |
| elseif(NOT PNG_ARM_NEON STREQUAL "off") |
| set(libpng_arm_sources |
| arm/arm_init.c |
| arm/filter_neon_intrinsics.c |
| arm/palette_neon_intrinsics.c) |
| if(NOT MSVC) |
| list(APPEND libpng_arm_sources arm/filter_neon.S) |
| endif() |
| if(PNG_ARM_NEON STREQUAL "on") |
| add_definitions(-DPNG_ARM_NEON_OPT=2) |
| elseif(PNG_ARM_NEON STREQUAL "check") |
| add_definitions(-DPNG_ARM_NEON_CHECK_SUPPORTED) |
| endif() |
| else() |
| add_definitions(-DPNG_ARM_NEON_OPT=0) |
| endif() |
| endif() |
| |
| # Set definitions and sources for PowerPC. |
| if(TARGET_ARCH MATCHES "^(powerpc|ppc64)") |
| set(PNG_POWERPC_VSX_POSSIBLE_VALUES on off) |
| set(PNG_POWERPC_VSX "on" |
| CACHE STRING "Enable POWERPC VSX optimizations: on|off; on is default") |
| set_property(CACHE PNG_POWERPC_VSX |
| PROPERTY STRINGS ${PNG_POWERPC_VSX_POSSIBLE_VALUES}) |
| list(FIND PNG_POWERPC_VSX_POSSIBLE_VALUES ${PNG_POWERPC_VSX} index) |
| if(index EQUAL -1) |
| message(FATAL_ERROR "PNG_POWERPC_VSX must be one of [${PNG_POWERPC_VSX_POSSIBLE_VALUES}]") |
| elseif(NOT PNG_POWERPC_VSX STREQUAL "off") |
| set(libpng_powerpc_sources |
| powerpc/powerpc_init.c |
| powerpc/filter_vsx_intrinsics.c) |
| if(PNG_POWERPC_VSX STREQUAL "on") |
| add_definitions(-DPNG_POWERPC_VSX_OPT=2) |
| endif() |
| else() |
| add_definitions(-DPNG_POWERPC_VSX_OPT=0) |
| endif() |
| endif() |
| |
| # Set definitions and sources for Intel. |
| if(TARGET_ARCH MATCHES "^(i[3-6]86|x86|AMD64)") |
| set(PNG_INTEL_SSE_POSSIBLE_VALUES on off) |
| set(PNG_INTEL_SSE "on" |
| CACHE STRING "Enable INTEL_SSE optimizations: on|off; on is default") |
| set_property(CACHE PNG_INTEL_SSE |
| PROPERTY STRINGS ${PNG_INTEL_SSE_POSSIBLE_VALUES}) |
| list(FIND PNG_INTEL_SSE_POSSIBLE_VALUES ${PNG_INTEL_SSE} index) |
| if(index EQUAL -1) |
| message(FATAL_ERROR "PNG_INTEL_SSE must be one of [${PNG_INTEL_SSE_POSSIBLE_VALUES}]") |
| elseif(NOT PNG_INTEL_SSE STREQUAL "off") |
| set(libpng_intel_sources |
| intel/intel_init.c |
| intel/filter_sse2_intrinsics.c) |
| if(PNG_INTEL_SSE STREQUAL "on") |
| add_definitions(-DPNG_INTEL_SSE_OPT=1) |
| endif() |
| else() |
| add_definitions(-DPNG_INTEL_SSE_OPT=0) |
| endif() |
| endif() |
| |
| # Set definitions and sources for MIPS. |
| if(TARGET_ARCH MATCHES "^(mipsel|mips64el)") |
| set(PNG_MIPS_MSA_POSSIBLE_VALUES on off) |
| set(PNG_MIPS_MSA "on" |
| CACHE STRING "Enable MIPS_MSA optimizations: on|off; on is default") |
| set_property(CACHE PNG_MIPS_MSA |
| PROPERTY STRINGS ${PNG_MIPS_MSA_POSSIBLE_VALUES}) |
| list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index_msa) |
| if(index_msa EQUAL -1) |
| message(FATAL_ERROR "PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]") |
| endif() |
| |
| set(PNG_MIPS_MMI_POSSIBLE_VALUES on off) |
| set(PNG_MIPS_MMI "on" |
| CACHE STRING "Enable MIPS_MMI optimizations: on|off; on is default") |
| set_property(CACHE PNG_MIPS_MMI |
| PROPERTY STRINGS ${PNG_MIPS_MMI_POSSIBLE_VALUES}) |
| list(FIND PNG_MIPS_MMI_POSSIBLE_VALUES ${PNG_MIPS_MMI} index_mmi) |
| if(index_mmi EQUAL -1) |
| message(FATAL_ERROR "PNG_MIPS_MMI must be one of [${PNG_MIPS_MMI_POSSIBLE_VALUES}]") |
| endif() |
| |
| if(PNG_MIPS_MSA STREQUAL "on" AND PNG_MIPS_MMI STREQUAL "on") |
| set(libpng_mips_sources |
| mips/mips_init.c |
| mips/filter_msa_intrinsics.c |
| mips/filter_mmi_inline_assembly.c) |
| add_definitions(-DPNG_MIPS_MSA_OPT=2) |
| add_definitions(-DPNG_MIPS_MMI_OPT=1) |
| elseif(PNG_MIPS_MSA STREQUAL "on") |
| set(libpng_mips_sources |
| mips/mips_init.c |
| mips/filter_msa_intrinsics.c) |
| add_definitions(-DPNG_MIPS_MSA_OPT=2) |
| add_definitions(-DPNG_MIPS_MMI_OPT=0) |
| elseif(PNG_MIPS_MMI STREQUAL "on") |
| set(libpng_mips_sources |
| mips/mips_init.c |
| mips/filter_mmi_inline_assembly.c) |
| add_definitions(-DPNG_MIPS_MSA_OPT=0) |
| add_definitions(-DPNG_MIPS_MMI_OPT=1) |
| else() |
| add_definitions(-DPNG_MIPS_MSA_OPT=0) |
| add_definitions(-DPNG_MIPS_MMI_OPT=0) |
| endif() |
| endif() |
| |
| else(PNG_HARDWARE_OPTIMIZATIONS) |
| |
| # Set definitions and sources for ARM. |
| if(TARGET_ARCH MATCHES "^(ARM|arm|aarch)") |
| add_definitions(-DPNG_ARM_NEON_OPT=0) |
| endif() |
| |
| # Set definitions and sources for PowerPC. |
| if(TARGET_ARCH MATCHES "^(powerpc|ppc64)") |
| add_definitions(-DPNG_POWERPC_VSX_OPT=0) |
| endif() |
| |
| # Set definitions and sources for Intel. |
| if(TARGET_ARCH MATCHES "^(i[3-6]86|x86|AMD64)") |
| add_definitions(-DPNG_INTEL_SSE_OPT=0) |
| endif() |
| |
| # Set definitions and sources for MIPS. |
| if(TARGET_ARCH MATCHES "^(mipsel|mips64el)") |
| add_definitions(-DPNG_MIPS_MSA_OPT=0) |
| endif() |
| |
| endif(PNG_HARDWARE_OPTIMIZATIONS) |
| |
| option(ld-version-script "Enable linker version script" ON) |
| if(ld-version-script AND NOT ANDROID AND NOT APPLE) |
| # Check if LD supports linker scripts. |
| file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" " |
| VERS_1 { global: sym1; local: *; }; |
| VERS_2 { global: sym2; main; } VERS_1; |
| ") |
| set(_SAVED_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) |
| if(NOT CMAKE_HOST_SOLARIS) |
| # Avoid using CMAKE_SHARED_LIBRARY_C_FLAGS in version script checks on |
| # Solaris, because of an incompatibility with the Solaris link editor. |
| list(APPEND CMAKE_REQUIRED_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS}) |
| endif() |
| list(APPEND CMAKE_REQUIRED_FLAGS "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/conftest.map'") |
| check_c_source_compiles(" |
| void sym1(void) {} |
| void sym2(void) {} |
| int main(void) { return 0; } |
| " HAVE_LD_VERSION_SCRIPT) |
| if(NOT HAVE_LD_VERSION_SCRIPT) |
| set(CMAKE_REQUIRED_FLAGS ${_SAVED_CMAKE_REQUIRED_FLAGS}) |
| if(NOT CMAKE_HOST_SOLARIS) |
| # Again, avoid using CMAKE_SHARED_LIBRARY_C_FLAGS in version script |
| # checks on Solaris. |
| list(APPEND CMAKE_REQUIRED_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS}) |
| endif() |
| list(APPEND CMAKE_REQUIRED_FLAGS "-Wl,-M -Wl,${CMAKE_CURRENT_BINARY_DIR}/conftest.map") |
| check_c_source_compiles(" |
| void sym1(void) {} |
| void sym2(void) {} |
| int main(void) { return 0; } |
| " HAVE_SOLARIS_LD_VERSION_SCRIPT) |
| endif() |
| set(CMAKE_REQUIRED_FLAGS ${_SAVED_CMAKE_REQUIRED_FLAGS}) |
| file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map") |
| endif() |
| |
| find_program(AWK NAMES gawk awk) |
| |
| include_directories(${CMAKE_CURRENT_BINARY_DIR}) |
| |
| if(NOT AWK OR ANDROID OR IOS) |
| # No awk available to generate sources; use pre-built pnglibconf.h |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt |
| ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h) |
| add_custom_target(png_genfiles) |
| else() |
| # Copy the awk scripts, converting their line endings to Unix (LF) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/checksym.awk |
| ${CMAKE_CURRENT_BINARY_DIR}/scripts/checksym.awk |
| @ONLY |
| NEWLINE_STYLE LF) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk |
| ${CMAKE_CURRENT_BINARY_DIR}/scripts/options.awk |
| @ONLY |
| NEWLINE_STYLE LF) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/dfn.awk |
| ${CMAKE_CURRENT_BINARY_DIR}/scripts/dfn.awk |
| @ONLY |
| NEWLINE_STYLE LF) |
| |
| # Generate .chk from .out with awk: |
| # generate_chk(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_chk) |
| set(options) |
| set(oneValueArgs INPUT OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GC "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if(NOT _GC_INPUT) |
| message(FATAL_ERROR "generate_chk: Missing INPUT argument") |
| endif() |
| if(NOT _GC_OUTPUT) |
| message(FATAL_ERROR "generate_chk: Missing OUTPUT argument") |
| endif() |
| |
| add_custom_command(OUTPUT "${_GC_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DINPUT=${_GC_INPUT}" |
| "-DOUTPUT=${_GC_OUTPUT}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/genchk.cmake" |
| DEPENDS "${_GC_INPUT}" ${_GC_DEPENDS} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endfunction() |
| |
| # Generate .out from .c with awk |
| # generate_out(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_out) |
| set(options) |
| set(oneValueArgs INPUT OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if(NOT _GO_INPUT) |
| message(FATAL_ERROR "generate_out: Missing INPUT argument") |
| endif() |
| if(NOT _GO_OUTPUT) |
| message(FATAL_ERROR "generate_out: Missing OUTPUT argument") |
| endif() |
| |
| add_custom_command(OUTPUT "${_GO_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DINPUT=${_GO_INPUT}" |
| "-DOUTPUT=${_GO_OUTPUT}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/genout.cmake" |
| DEPENDS "${_GO_INPUT}" ${_GO_DEPENDS} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endfunction() |
| |
| # Generate specific source file with awk |
| # generate_source(OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_source) |
| set(options) |
| set(oneValueArgs OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GSO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if(NOT _GSO_OUTPUT) |
| message(FATAL_ERROR "generate_source: Missing OUTPUT argument") |
| endif() |
| |
| add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_GSO_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DOUTPUT=${_GSO_OUTPUT}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/gensrc.cmake" |
| DEPENDS ${_GSO_DEPENDS} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endfunction() |
| |
| # Copy file |
| # generate_copy(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_copy) |
| set(options) |
| set(oneValueArgs INPUT OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GCO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if(NOT _GCO_INPUT) |
| message(FATAL_ERROR "generate_copy: Missing INPUT argument") |
| endif() |
| if(NOT _GCO_OUTPUT) |
| message(FATAL_ERROR "generate_copy: Missing OUTPUT argument") |
| endif() |
| |
| add_custom_command(OUTPUT "${_GCO_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| -E remove "${_GCO_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| -E copy "${_GCO_INPUT}" "${_GCO_OUTPUT}" |
| DEPENDS "${source}" ${_GCO_DEPENDS}) |
| endfunction() |
| |
| # Generate scripts/pnglibconf.h |
| generate_source(OUTPUT "scripts/pnglibconf.c" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/options.awk" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h") |
| add_custom_target(png_scripts_pnglibconf_c |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c") |
| |
| # Generate pnglibconf.c |
| generate_source(OUTPUT "pnglibconf.c" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/options.awk" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h") |
| add_custom_target(pnglibconf_c |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c") |
| |
| if(PNG_PREFIX) |
| set(PNGLIBCONF_H_EXTRA_DEPENDS |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/macro.lst") |
| set(PNGPREFIX_H_EXTRA_DEPENDS |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out") |
| endif() |
| |
| generate_out(INPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" |
| DEPENDS pnglibconf_c) |
| add_custom_target(pnglibconf_out |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out") |
| |
| # Generate pnglibconf.h |
| generate_source(OUTPUT "pnglibconf.h" |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" pnglibconf_out |
| ${PNGLIBCONF_H_EXTRA_DEPENDS}) |
| add_custom_target(pnglibconf_h |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/intprefix.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out" |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h) |
| add_custom_target(png_scripts_intprefix_out |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/prefix.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" pnglibconf_out) |
| add_custom_target(png_scripts_prefix_out |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out") |
| |
| # Generate pngprefix.h |
| generate_source(OUTPUT "pngprefix.h" |
| DEPENDS ${PNGPREFIX_H_EXTRA_DEPENDS}) |
| add_custom_target(pngprefix_h |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/sym.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h) |
| add_custom_target(png_scripts_sym_out |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt") |
| add_custom_target(png_scripts_symbols_out |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/vers.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h) |
| add_custom_target(png_scripts_vers_out |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out") |
| |
| generate_chk(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk" |
| DEPENDS png_scripts_symbols_out |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/checksym.awk" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.def") |
| |
| add_custom_target(png_scripts_symbols_chk |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk") |
| |
| generate_copy(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym" |
| DEPENDS png_scripts_sym_out) |
| generate_copy(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers" |
| DEPENDS png_scripts_vers_out) |
| |
| add_custom_target(png_genvers |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers") |
| add_custom_target(png_gensym |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym") |
| |
| add_custom_target(png_genprebuilt |
| COMMAND "${CMAKE_COMMAND}" |
| "-DOUTPUT=scripts/pnglibconf.h.prebuilt" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/gensrc.cmake" |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| |
| # A single target handles generation of all generated files. |
| add_custom_target(png_genfiles |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym" png_gensym |
| "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers" png_genvers |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c" pnglibconf_c |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" pnglibconf_out |
| "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h" pngprefix_h |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out" png_scripts_intprefix_out |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c" png_scripts_pnglibconf_c |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" png_scripts_prefix_out |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" png_scripts_sym_out |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk" png_scripts_symbols_chk |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" png_scripts_symbols_out |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out" png_scripts_vers_out) |
| endif(NOT AWK OR ANDROID OR IOS) |
| |
| # List the source code files. |
| set(libpng_public_hdrs |
| png.h |
| pngconf.h |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" |
| ) |
| set(libpng_private_hdrs |
| pngpriv.h |
| pngdebug.h |
| pnginfo.h |
| pngstruct.h |
| ) |
| if(AWK AND NOT ANDROID AND NOT IOS) |
| list(APPEND libpng_private_hdrs "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h") |
| endif() |
| set(libpng_sources |
| ${libpng_public_hdrs} |
| ${libpng_private_hdrs} |
| png.c |
| pngerror.c |
| pngget.c |
| pngmem.c |
| pngpread.c |
| pngread.c |
| pngrio.c |
| pngrtran.c |
| pngrutil.c |
| pngset.c |
| pngtrans.c |
| pngwio.c |
| pngwrite.c |
| pngwtran.c |
| pngwutil.c |
| ${libpng_arm_sources} |
| ${libpng_intel_sources} |
| ${libpng_mips_sources} |
| ${libpng_powerpc_sources} |
| ) |
| set(pngtest_sources |
| pngtest.c |
| ) |
| set(pngvalid_sources |
| contrib/libtests/pngvalid.c |
| ) |
| set(pngstest_sources |
| contrib/libtests/pngstest.c |
| ) |
| set(pngunknown_sources |
| contrib/libtests/pngunknown.c |
| ) |
| set(pngimage_sources |
| contrib/libtests/pngimage.c |
| ) |
| set(pngfix_sources |
| contrib/tools/pngfix.c |
| ) |
| set(png_fix_itxt_sources |
| contrib/tools/png-fix-itxt.c |
| ) |
| |
| if(MSVC OR (WIN32 AND (CMAKE_C_COMPILER_ID MATCHES "Clang"))) |
| add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE) |
| add_definitions(-D_CRT_SECURE_NO_DEPRECATE) |
| endif() |
| |
| if(PNG_DEBUG) |
| add_definitions(-DPNG_DEBUG) |
| endif() |
| |
| # Now build our targets. |
| |
| # Initialize the list of libpng library targets. |
| set(PNG_LIBRARY_TARGETS "") |
| |
| # Initialize the libpng library file names. |
| if(UNIX |
| OR (WIN32 AND NOT CMAKE_SHARED_LIBRARY_PREFIX STREQUAL "") |
| OR (WIN32 AND NOT CMAKE_STATIC_LIBRARY_PREFIX STREQUAL "")) |
| # We are on a Unix or Unix-like toolchain like the GNU toolchain on Windows. |
| # Library file names are expected to have an implicit prefix such as "lib". |
| # Let CMake prepend and append its usual prefixes and suffixes by default. |
| set(PNG_SHARED_OUTPUT_NAME "png${PNGLIB_ABI_VERSION}") |
| set(PNG_STATIC_OUTPUT_NAME "png${PNGLIB_ABI_VERSION}") |
| else() |
| # We are, most likely, on a Windows toolchain like MSVC, Clang on Windows, |
| # Borland/Embarcadero, etc. We need to specify the "libpng" name explicitly. |
| # We also need to use a custom suffix, in order to distinguish between the |
| # shared import library name and the static library name. |
| set(PNG_SHARED_OUTPUT_NAME "libpng${PNGLIB_ABI_VERSION}") |
| set(PNG_STATIC_OUTPUT_NAME "libpng${PNGLIB_ABI_VERSION}_static") |
| endif() |
| |
| if(PNG_SHARED) |
| add_library(png_shared SHARED ${libpng_sources}) |
| add_dependencies(png_shared png_genfiles) |
| list(APPEND PNG_LIBRARY_TARGETS png_shared) |
| set_target_properties(png_shared PROPERTIES |
| OUTPUT_NAME "${PNG_SHARED_OUTPUT_NAME}" |
| DEBUG_POSTFIX "${PNG_DEBUG_POSTFIX}" |
| VERSION "${PNGLIB_SHARED_VERSION}" |
| SOVERSION "${PNGLIB_ABI_VERSION}") |
| if(UNIX AND AWK) |
| if(HAVE_LD_VERSION_SCRIPT) |
| set_target_properties(png_shared PROPERTIES |
| LINK_FLAGS "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'") |
| elseif(HAVE_SOLARIS_LD_VERSION_SCRIPT) |
| set_target_properties(png_shared PROPERTIES |
| LINK_FLAGS "-Wl,-M -Wl,'${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'") |
| endif() |
| endif() |
| if(APPLE) |
| # Avoid CMake's implicit compile definition "png_shared_EXPORTS". |
| set_target_properties(png_shared PROPERTIES DEFINE_SYMBOL "") |
| elseif(WIN32) |
| # Use the explicit compile definition "PNG_BUILD_DLL" for Windows DLLs. |
| set_target_properties(png_shared PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL) |
| endif() |
| target_include_directories(png_shared |
| PUBLIC |
| $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/libpng${PNGLIB_ABI_VERSION}> |
| $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> |
| PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}) |
| target_link_libraries(png_shared PUBLIC ZLIB::ZLIB ${M_LIBRARY}) |
| endif() |
| |
| if(PNG_STATIC) |
| add_library(png_static STATIC ${libpng_sources}) |
| add_dependencies(png_static png_genfiles) |
| list(APPEND PNG_LIBRARY_TARGETS png_static) |
| set_target_properties(png_static PROPERTIES |
| OUTPUT_NAME "${PNG_STATIC_OUTPUT_NAME}" |
| DEBUG_POSTFIX "${PNG_DEBUG_POSTFIX}") |
| target_include_directories(png_static |
| PUBLIC |
| $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/libpng${PNGLIB_ABI_VERSION}> |
| $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> |
| PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}) |
| target_link_libraries(png_static PUBLIC ZLIB::ZLIB ${M_LIBRARY}) |
| endif() |
| |
| if(PNG_FRAMEWORK AND APPLE) |
| add_library(png_framework SHARED ${libpng_sources}) |
| add_dependencies(png_framework png_genfiles) |
| list(APPEND PNG_LIBRARY_TARGETS png_framework) |
| set_target_properties(png_framework PROPERTIES |
| FRAMEWORK TRUE |
| FRAMEWORK_VERSION "${PNGLIB_VERSION}" |
| MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${PNGLIB_MAJOR}.${PNGLIB_MINOR}" |
| MACOSX_FRAMEWORK_BUNDLE_VERSION "${PNGLIB_VERSION}" |
| MACOSX_FRAMEWORK_IDENTIFIER "org.libpng.libpng" |
| XCODE_ATTRIBUTE_INSTALL_PATH "@rpath" |
| PUBLIC_HEADER "${libpng_public_hdrs}" |
| OUTPUT_NAME "png" |
| DEBUG_POSTFIX "${PNG_DEBUG_POSTFIX}") |
| # Avoid CMake's implicit compile definition "-Dpng_framework_EXPORTS". |
| set_target_properties(png_framework PROPERTIES DEFINE_SYMBOL "") |
| target_include_directories(png_framework |
| PUBLIC |
| $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/libpng${PNGLIB_ABI_VERSION}> |
| $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> |
| PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}) |
| target_link_libraries(png_framework PUBLIC ZLIB::ZLIB ${M_LIBRARY}) |
| endif() |
| |
| if(NOT PNG_LIBRARY_TARGETS) |
| message(SEND_ERROR "No library variant selected to build. " |
| "Please enable at least one of the following options: " |
| "PNG_SHARED, PNG_STATIC, PNG_FRAMEWORK") |
| endif() |
| |
| if(PNG_TESTS AND PNG_SHARED) |
| enable_testing() |
| |
| function(png_add_test) |
| set(options) |
| set(oneValueArgs NAME COMMAND) |
| set(multiValueArgs OPTIONS FILES) |
| cmake_parse_arguments(_PAT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if(NOT _PAT_NAME) |
| message(FATAL_ERROR "png_add_test: Missing NAME argument") |
| endif() |
| if(NOT _PAT_COMMAND) |
| message(FATAL_ERROR "png_add_test: Missing COMMAND argument") |
| endif() |
| |
| set(TEST_OPTIONS "${_PAT_OPTIONS}") |
| set(TEST_FILES "${_PAT_FILES}") |
| |
| configure_file("${CMAKE_CURRENT_SOURCE_DIR}/scripts/cmake/test.cmake.in" |
| "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake" |
| @ONLY) |
| add_test(NAME "${_PAT_NAME}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DLIBPNG=$<TARGET_FILE:png_shared>" |
| "-DTEST_COMMAND=$<TARGET_FILE:${_PAT_COMMAND}>" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake") |
| endfunction() |
| |
| # Find test PNG files by globbing, but sort lists to ensure |
| # consistency between different filesystems. |
| file(GLOB PNGSUITE_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/*.png") |
| list(SORT PNGSUITE_PNGS) |
| file(GLOB TEST_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/testpngs/*.png") |
| list(SORT TEST_PNGS) |
| |
| set(PNGTEST_PNG "${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png") |
| |
| add_executable(pngtest ${pngtest_sources}) |
| target_link_libraries(pngtest PRIVATE png_shared) |
| |
| png_add_test(NAME pngtest |
| COMMAND pngtest |
| FILES "${PNGTEST_PNG}") |
| |
| add_executable(pngvalid ${pngvalid_sources}) |
| target_link_libraries(pngvalid PRIVATE png_shared) |
| |
| png_add_test(NAME pngvalid-gamma-16-to-8 |
| COMMAND pngvalid |
| OPTIONS --gamma-16-to-8) |
| png_add_test(NAME pngvalid-gamma-alpha-mode |
| COMMAND pngvalid |
| OPTIONS --gamma-alpha-mode) |
| png_add_test(NAME pngvalid-gamma-background |
| COMMAND pngvalid |
| OPTIONS --gamma-background) |
| png_add_test(NAME pngvalid-gamma-expand16-alpha-mode |
| COMMAND pngvalid |
| OPTIONS --gamma-alpha-mode --expand16) |
| png_add_test(NAME pngvalid-gamma-expand16-background |
| COMMAND pngvalid |
| OPTIONS --gamma-background --expand16) |
| png_add_test(NAME pngvalid-gamma-expand16-transform |
| COMMAND pngvalid |
| OPTIONS --gamma-transform --expand16) |
| png_add_test(NAME pngvalid-gamma-sbit |
| COMMAND pngvalid |
| OPTIONS --gamma-sbit) |
| png_add_test(NAME pngvalid-gamma-threshold |
| COMMAND pngvalid |
| OPTIONS --gamma-threshold) |
| png_add_test(NAME pngvalid-gamma-transform |
| COMMAND pngvalid |
| OPTIONS --gamma-transform) |
| png_add_test(NAME pngvalid-progressive-interlace-standard |
| COMMAND pngvalid |
| OPTIONS --standard --progressive-read --interlace) |
| png_add_test(NAME pngvalid-progressive-size |
| COMMAND pngvalid |
| OPTIONS --size --progressive-read) |
| png_add_test(NAME pngvalid-progressive-standard |
| COMMAND pngvalid |
| OPTIONS --standard --progressive-read) |
| png_add_test(NAME pngvalid-standard |
| COMMAND pngvalid |
| OPTIONS --standard) |
| png_add_test(NAME pngvalid-transform |
| COMMAND pngvalid |
| OPTIONS --transform) |
| |
| add_executable(pngstest ${pngstest_sources}) |
| target_link_libraries(pngstest PRIVATE png_shared) |
| |
| foreach(gamma_type 1.8 linear none sRGB) |
| foreach(alpha_type none alpha) |
| set(PNGSTEST_FILES) |
| foreach(test_png ${TEST_PNGS}) |
| string(REGEX MATCH "-linear[-.]" TEST_PNG_LINEAR "${test_png}") |
| string(REGEX MATCH "-sRGB[-.]" TEST_PNG_SRGB "${test_png}") |
| string(REGEX MATCH "-1.8[-.]" TEST_PNG_G18 "${test_png}") |
| string(REGEX MATCH "-alpha-" TEST_PNG_ALPHA "${test_png}") |
| |
| set(TEST_PNG_VALID TRUE) |
| |
| if(TEST_PNG_ALPHA) |
| if(NOT alpha_type STREQUAL "alpha") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| else() |
| if(alpha_type STREQUAL "alpha") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| endif() |
| |
| if(TEST_PNG_LINEAR) |
| if(NOT gamma_type STREQUAL "linear") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| elseif(TEST_PNG_SRGB) |
| if(NOT gamma_type STREQUAL "sRGB") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| elseif(TEST_PNG_G18) |
| if(NOT gamma_type STREQUAL "1.8") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| else() |
| if(NOT gamma_type STREQUAL "none") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| endif() |
| |
| if(TEST_PNG_VALID) |
| list(APPEND PNGSTEST_FILES "${test_png}") |
| endif() |
| endforeach() |
| # Should already be sorted, but sort anyway to be certain. |
| list(SORT PNGSTEST_FILES) |
| png_add_test(NAME pngstest-${gamma_type}-${alpha_type} |
| COMMAND pngstest |
| OPTIONS --tmpfile "${gamma_type}-${alpha_type}-" --log |
| FILES ${PNGSTEST_FILES}) |
| endforeach() |
| endforeach() |
| |
| add_executable(pngunknown ${pngunknown_sources}) |
| target_link_libraries(pngunknown PRIVATE png_shared) |
| |
| png_add_test(NAME pngunknown-discard |
| COMMAND pngunknown |
| OPTIONS --strict default=discard |
| FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-IDAT |
| COMMAND pngunknown |
| OPTIONS --strict default=discard IDAT=save |
| FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-if-safe |
| COMMAND pngunknown |
| OPTIONS --strict default=if-safe |
| FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-sAPI |
| COMMAND pngunknown |
| OPTIONS --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save |
| FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-save |
| COMMAND pngunknown |
| OPTIONS --strict default=save |
| FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-sTER |
| COMMAND pngunknown |
| OPTIONS --strict sTER=if-safe |
| FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-vpAg |
| COMMAND pngunknown |
| OPTIONS --strict vpAg=if-safe |
| FILES "${PNGTEST_PNG}") |
| |
| add_executable(pngimage ${pngimage_sources}) |
| target_link_libraries(pngimage PRIVATE png_shared) |
| |
| png_add_test(NAME pngimage-quick |
| COMMAND pngimage |
| OPTIONS --list-combos --log |
| FILES ${PNGSUITE_PNGS}) |
| png_add_test(NAME pngimage-full |
| COMMAND pngimage |
| OPTIONS --exhaustive --list-combos --log |
| FILES ${PNGSUITE_PNGS}) |
| endif() |
| |
| if(PNG_SHARED AND PNG_TOOLS) |
| add_executable(pngfix ${pngfix_sources}) |
| target_link_libraries(pngfix PRIVATE png_shared) |
| set(PNG_BIN_TARGETS pngfix) |
| |
| add_executable(png-fix-itxt ${png_fix_itxt_sources}) |
| target_link_libraries(png-fix-itxt PRIVATE ZLIB::ZLIB ${M_LIBRARY}) |
| list(APPEND PNG_BIN_TARGETS png-fix-itxt) |
| endif() |
| |
| # Create a symlink from src to dest (if possible), or, alternatively, |
| # copy src to dest if different. |
| function(create_symlink DEST_FILE) |
| cmake_parse_arguments(_SYM "" "FILE;TARGET" "" ${ARGN}) |
| if(NOT _SYM_FILE AND NOT _SYM_TARGET) |
| message(FATAL_ERROR "create_symlink: Missing FILE or TARGET argument") |
| endif() |
| if(_SYM_FILE AND _SYM_TARGET) |
| message(FATAL_ERROR "create_symlink: " |
| "The arguments FILE (${_SYM_FILE}) and TARGET (${_SYM_TARGET}) " |
| "are mutually-exclusive") |
| endif() |
| |
| if(_SYM_FILE) |
| # If we don't need to symlink something that's coming from a build target, |
| # we can go ahead and symlink/copy at configure time. |
| if(CMAKE_HOST_WIN32 AND NOT CYGWIN) |
| execute_process(COMMAND "${CMAKE_COMMAND}" |
| -E copy_if_different |
| ${_SYM_FILE} ${DEST_FILE} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| else() |
| execute_process(COMMAND "${CMAKE_COMMAND}" |
| -E create_symlink |
| ${_SYM_FILE} ${DEST_FILE} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endif() |
| endif() |
| |
| if(_SYM_TARGET) |
| # We need to use generator expressions, which can be a bit tricky. |
| # For simplicity, make the symlink a POST_BUILD step, and use the TARGET |
| # signature of add_custom_command. |
| if(CMAKE_HOST_WIN32 AND NOT CYGWIN) |
| add_custom_command(TARGET ${_SYM_TARGET} |
| POST_BUILD |
| COMMAND "${CMAKE_COMMAND}" |
| -E copy_if_different |
| $<TARGET_LINKER_FILE_DIR:${_SYM_TARGET}>/$<TARGET_LINKER_FILE_NAME:${_SYM_TARGET}> |
| $<TARGET_LINKER_FILE_DIR:${_SYM_TARGET}>/${DEST_FILE}) |
| else() |
| add_custom_command(TARGET ${_SYM_TARGET} |
| POST_BUILD |
| COMMAND "${CMAKE_COMMAND}" |
| -E create_symlink |
| $<TARGET_LINKER_FILE_NAME:${_SYM_TARGET}> |
| $<TARGET_LINKER_FILE_DIR:${_SYM_TARGET}>/${DEST_FILE}) |
| endif() |
| endif() |
| endfunction() |
| |
| # Create source generation scripts. |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/cmake/genchk.cmake.in |
| ${CMAKE_CURRENT_BINARY_DIR}/genchk.cmake |
| @ONLY) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/cmake/genout.cmake.in |
| ${CMAKE_CURRENT_BINARY_DIR}/genout.cmake |
| @ONLY) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/cmake/gensrc.cmake.in |
| ${CMAKE_CURRENT_BINARY_DIR}/gensrc.cmake |
| @ONLY) |
| |
| # libpng is a library so default to 'lib' |
| if(NOT DEFINED CMAKE_INSTALL_LIBDIR) |
| set(CMAKE_INSTALL_LIBDIR lib) |
| endif() |
| |
| # Create pkgconfig files. |
| # We use the same files like ./configure, so we have to set its vars. |
| # Only do this on Windows for Cygwin - the files don't make much sense |
| # outside of a UNIX look-alike. |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| set(prefix ${CMAKE_INSTALL_PREFIX}) |
| set(exec_prefix ${CMAKE_INSTALL_PREFIX}) |
| set(libdir ${CMAKE_INSTALL_FULL_LIBDIR}) |
| set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR}) |
| set(LIBS "-lz -lm") |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in |
| ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}.pc |
| @ONLY) |
| create_symlink(libpng.pc FILE libpng${PNGLIB_ABI_VERSION}.pc) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in |
| ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config |
| @ONLY) |
| create_symlink(libpng-config FILE libpng${PNGLIB_ABI_VERSION}-config) |
| endif() |
| |
| # Install. |
| if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL) |
| install(TARGETS ${PNG_LIBRARY_TARGETS} |
| EXPORT libpng |
| RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} |
| LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} |
| ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} |
| FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| |
| if(PNG_SHARED) |
| # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| create_symlink(libpng${CMAKE_SHARED_LIBRARY_SUFFIX} TARGET png_shared) |
| install(FILES $<TARGET_LINKER_FILE_DIR:png_shared>/libpng${CMAKE_SHARED_LIBRARY_SUFFIX} |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| endif() |
| endif() |
| |
| if(PNG_STATIC) |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| create_symlink(libpng${CMAKE_STATIC_LIBRARY_SUFFIX} TARGET png_static) |
| install(FILES $<TARGET_LINKER_FILE_DIR:png_static>/libpng${CMAKE_STATIC_LIBRARY_SUFFIX} |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| endif() |
| endif() |
| endif() |
| |
| if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL) |
| install(FILES ${libpng_public_hdrs} |
| DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) |
| install(FILES ${libpng_public_hdrs} |
| DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libpng${PNGLIB_ABI_VERSION}) |
| endif() |
| if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL) |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config |
| DESTINATION ${CMAKE_INSTALL_BINDIR}) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config |
| DESTINATION ${CMAKE_INSTALL_BINDIR}) |
| endif() |
| endif() |
| |
| if(NOT SKIP_INSTALL_PROGRAMS AND NOT SKIP_INSTALL_ALL) |
| install(TARGETS ${PNG_BIN_TARGETS} |
| RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) |
| endif() |
| |
| if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL) |
| # Install the man pages. |
| install(FILES libpng.3 libpngpf.3 |
| DESTINATION ${CMAKE_INSTALL_MANDIR}/man3) |
| install(FILES png.5 |
| DESTINATION ${CMAKE_INSTALL_MANDIR}/man5) |
| # Install the pkg-config files. |
| if(NOT CMAKE_HOST_WIN32 OR CYGWIN OR MINGW) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config |
| DESTINATION ${CMAKE_INSTALL_BINDIR}) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}.pc |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config |
| DESTINATION ${CMAKE_INSTALL_BINDIR}) |
| endif() |
| endif() |
| |
| # Create an export file that CMake users can include() to import our targets. |
| if(NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL) |
| install(EXPORT libpng |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}/libpng |
| FILE libpng${PNGLIB_ABI_VERSION}.cmake) |
| endif() |
| |
| # TODO: Create MSVC import lib for MinGW-compiled shared lib. |
| # pexports libpng.dll > libpng.def |
| # lib /def:libpng.def /machine:x86 |
