# CMakeLists.txt
-# Copyright (C) 2007-2014 Glenn Randers-Pehrson
+# Copyright (c) 2018-2022 Cosmin Truta
+# Copyright (c) 2007,2009-2018 Glenn Randers-Pehrson
+# Written by Christian Ehrlicher, 2007
+# Revised by Roger Lowman, 2009-2010
+# Revised by Clifford Yapp, 2011-2012,2017
+# Revised by Roger Leigh, 2016
+# Revised by Andreas Franek, 2016
+# Revised by Sam Serrels, 2017
+# Revised by Vadim Barkov, 2017
+# Revised by Vicky Pfau, 2018
+# Revised by Cameron Cawley, 2018,2021
+# Revised by Kyle Bentley, 2018
+# Revised by David Callu, 2020
+# Revised by Steve Robinson, 2020
+# Revised by Simon Hausmann, 2020
+# Revised by Alex Gaynor, 2020
+# Revised by Owen Rudge, 2020
+# Revised by Gleb Mazovetskiy, 2021
+# Revised by Christopher Sean Morrison, 2022
+# Revised by Martin Storsjo, 2022
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
-cmake_minimum_required(VERSION 2.4.4)
-set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
+cmake_minimum_required(VERSION 3.1)
+cmake_policy(VERSION 3.1)
-set(CMAKE_CONFIGURATION_TYPES "Release;Debug;MinSizeRel;RelWithDebInfo")
-
-project(libpng C)
+project(libpng C ASM)
enable_testing()
set(PNGLIB_MAJOR 1)
set(PNGLIB_MINOR 6)
-set(PNGLIB_RELEASE 13)
+set(PNGLIB_REVISION 39)
+set(PNGLIB_SUBREVISION 0)
+#set(PNGLIB_SUBREVISION "git")
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
-set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
+set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_REVISION})
+set(PNGLIB_SHARED_SOVERSION ${PNGLIB_MAJOR}${PNGLIB_MINOR})
+set(PNGLIB_SHARED_VERSION ${PNGLIB_SHARED_SOVERSION}.${PNGLIB_REVISION}.${PNGLIB_SUBREVISION})
+
+include(GNUInstallDirs)
-# needed packages
-find_package(ZLIB REQUIRED)
-include_directories(${ZLIB_INCLUDE_DIR})
+# Allow users to specify location of zlib.
+# Useful if zlib is being built alongside this as a sub-project.
+option(PNG_BUILD_ZLIB "Custom zlib Location, else find_package is used" OFF)
-if(NOT WIN32)
- find_library(M_LIBRARY
- NAMES m
- PATHS /usr/lib /usr/local/lib
- )
+if(NOT PNG_BUILD_ZLIB)
+ find_package(ZLIB REQUIRED)
+ include_directories(${ZLIB_INCLUDE_DIRS})
+endif()
+
+if(UNIX AND NOT APPLE AND NOT BEOS AND NOT HAIKU AND NOT EMSCRIPTEN)
+ find_library(M_LIBRARY m)
if(NOT M_LIBRARY)
- message(STATUS
- "math library 'libm' not found - floating point support disabled")
+ set(M_LIBRARY "")
endif()
else()
- # not needed on windows
+ # libm is not needed and/or not available.
set(M_LIBRARY "")
endif()
-# COMMAND LINE OPTIONS
-if(DEFINED PNG_SHARED)
- option(PNG_SHARED "Build shared lib" ${PNG_SHARED})
+# Public CMake configuration variables.
+option(PNG_SHARED "Build shared lib" ON)
+option(PNG_STATIC "Build static lib" ON)
+option(PNG_EXECUTABLES "Build libpng executables" ON)
+option(PNG_TESTS "Build libpng tests" ON)
+
+# Many more configuration options could be added here.
+option(PNG_FRAMEWORK "Build OS X framework" OFF)
+option(PNG_DEBUG "Build with debug output" OFF)
+option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON)
+
+set(PNG_PREFIX "" CACHE STRING "Prefix to add to the API function names")
+set(DFA_XTRA "" CACHE FILEPATH "File containing extra configuration settings")
+
+# 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()
- option(PNG_SHARED "Build shared lib" ON)
+ set(TARGET_ARCH ${CMAKE_SYSTEM_PROCESSOR})
endif()
-if(DEFINED PNG_STATIC)
- option(PNG_STATIC "Build static lib" ${PNG_STATIC})
-else()
- option(PNG_STATIC "Build static lib" ON)
+
+if(PNG_HARDWARE_OPTIMIZATIONS)
+
+# Set definitions and sources for ARM.
+if(TARGET_ARCH MATCHES "^arm" OR
+ TARGET_ARCH MATCHES "^aarch64")
+ if(TARGET_ARCH MATCHES "^arm64" OR
+ TARGET_ARCH MATCHES "^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 ${PNG_ARM_NEON} STREQUAL "off")
+ set(libpng_arm_sources
+ arm/arm_init.c
+ arm/filter_neon.S
+ arm/filter_neon_intrinsics.c
+ arm/palette_neon_intrinsics.c)
+ if(${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()
-option(PNG_TESTS "Build libpng tests" YES)
+# Set definitions and sources for PowerPC.
+if(TARGET_ARCH MATCHES "^powerpc*" OR
+ TARGET_ARCH MATCHES "^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()
-# Many more configuration options could be added here
-option(PNG_DEBUG "Build with debug output" NO)
-option(PNGARG "Disable ANSI-C prototypes" NO)
+# Set definitions and sources for Intel.
+if(TARGET_ARCH MATCHES "^i?86" OR
+ TARGET_ARCH MATCHES "^x86_64*")
+ 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*" OR
+ TARGET_ARCH MATCHES "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 ${PNG_MIPS_MSA} index)
+ if(index EQUAL -1)
+ message(FATAL_ERROR "PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]")
+ elseif(NOT ${PNG_MIPS_MSA} STREQUAL "off")
+ set(libpng_mips_sources
+ mips/mips_init.c
+ mips/filter_msa_intrinsics.c)
+ if(${PNG_MIPS_MSA} STREQUAL "on")
+ add_definitions(-DPNG_MIPS_MSA_OPT=2)
+ endif()
+ else()
+ add_definitions(-DPNG_MIPS_MSA_OPT=0)
+ endif()
+endif()
-# SET LIBNAME
+else(PNG_HARDWARE_OPTIMIZATIONS)
+
+# Set definitions and sources for ARM.
+if(TARGET_ARCH MATCHES "^arm" OR
+ TARGET_ARCH MATCHES "^aarch64")
+ add_definitions(-DPNG_ARM_NEON_OPT=0)
+endif()
+
+# Set definitions and sources for PowerPC.
+if(TARGET_ARCH MATCHES "^powerpc*" OR
+ TARGET_ARCH MATCHES "^ppc64*")
+ add_definitions(-DPNG_POWERPC_VSX_OPT=0)
+endif()
+
+# Set definitions and sources for Intel.
+if(TARGET_ARCH MATCHES "^i?86" OR
+ TARGET_ARCH MATCHES "^x86_64*")
+ add_definitions(-DPNG_INTEL_SSE_OPT=0)
+endif()
+
+# Set definitions and sources for MIPS.
+if(TARGET_ARCH MATCHES "mipsel*" OR
+ TARGET_ARCH MATCHES "mips64el*")
+ add_definitions(-DPNG_MIPS_MSA_OPT=0)
+endif()
+
+endif(PNG_HARDWARE_OPTIMIZATIONS)
+
+# Set PNG_LIB_NAME.
set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
-# to distinguish between debug and release lib
+# Distinguish between debug and release builds.
set(CMAKE_DEBUG_POSTFIX "d")
-# Use the prebuilt pnglibconf.h file from the scripts folder
-# TODO: fix this by building with awk; without this no cmake build can be
-# configured directly (to do so indirectly use your local awk to build a
-# pnglibconf.h in the build directory.)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
- ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
+include(CheckCSourceCompiles)
+option(ld-version-script "Enable linker version script" ON)
+if(ld-version-script AND NOT ANDROID AND NOT APPLE)
+ # Check if LD supports linker scripts.
+ file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "
+VERS_1 {
+ global: sym;
+ local: *;
+};
+
+VERS_2 {
+ global: sym2;
+ main;
+} VERS_1;
+")
+ set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/conftest.map'")
+ check_c_source_compiles("void sym(void) {}
+void sym2(void) {}
+int main(void) {return 0;}
+" HAVE_LD_VERSION_SCRIPT)
+ if(NOT HAVE_LD_VERSION_SCRIPT)
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE} "-Wl,-M -Wl,${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
+ check_c_source_compiles("void sym(void) {}
+void sym2(void) {}
+int main(void) {return 0;}
+" HAVE_SOLARIS_LD_VERSION_SCRIPT)
+ endif()
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})
+ file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
+endif()
+
+# Find symbol prefix. Likely obsolete and unnecessary with recent
+# toolchains (it's not done in many other projects).
+function(symbol_prefix)
+ set(SYMBOL_PREFIX)
+
+ execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E" "-"
+ INPUT_FILE /dev/null
+ OUTPUT_VARIABLE OUT
+ RESULT_VARIABLE STATUS)
+
+ if(CPP_FAIL)
+ message(WARNING "Failed to run the C preprocessor")
+ endif()
+
+ string(REPLACE "\n" ";" OUT "${OUT}")
+ foreach(line ${OUT})
+ string(REGEX MATCH "^PREFIX=" found_match "${line}")
+ if(found_match)
+ string(REGEX REPLACE "^PREFIX=(.*\)" "\\1" prefix "${line}")
+ string(REGEX MATCH "__USER_LABEL_PREFIX__" found_match "${prefix}")
+ if(found_match)
+ string(REGEX REPLACE "(.*)__USER_LABEL_PREFIX__(.*)" "\\1\\2" prefix "${prefix}")
+ endif()
+ set(SYMBOL_PREFIX "${prefix}")
+ endif()
+ endforeach()
+
+ message(STATUS "Symbol prefix: ${SYMBOL_PREFIX}")
+ set(SYMBOL_PREFIX "${SYMBOL_PREFIX}" PARENT_SCOPE)
+endfunction()
+
+if(UNIX)
+ symbol_prefix()
+endif()
+
+find_program(AWK NAMES gawk awk)
+
include_directories(${CMAKE_CURRENT_BINARY_DIR})
-# OUR SOURCES
+if(NOT AWK OR ANDROID OR IOS)
+ # No awk available to generate sources; use pre-built pnglibconf.h
+ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
+ ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
+ add_custom_target(genfiles) # Dummy
+else()
+ # Copy the awk scripts, converting their line endings to Unix (LF)
+ configure_file(${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
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/dfn.awk
+ @ONLY
+ NEWLINE_STYLE LF)
+
+ # Generate .chk from .out with awk:
+ # generate_chk(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
+ include(CMakeParseArguments)
+ function(generate_chk)
+ set(options)
+ set(oneValueArgs INPUT OUTPUT)
+ set(multiValueArgs DEPENDS)
+ cmake_parse_arguments(_GC "${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}/scripts/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}/scripts/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}/scripts/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}" ${ARGN})
+ add_custom_command(OUTPUT "${_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(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 "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h)
+ add_custom_target(scripts_intprefix_out DEPENDS "${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"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" pnglibconf_out)
+ add_custom_target(scripts_prefix_out DEPENDS "${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 "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h)
+ add_custom_target(scripts_sym_out DEPENDS "${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"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt")
+ add_custom_target(scripts_symbols_out DEPENDS "${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"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" pnglibconf_h)
+ add_custom_target(scripts_vers_out DEPENDS "${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 scripts_symbols_out
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/checksym.awk"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.def")
+
+ add_custom_target(scripts_symbols_chk
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk")
+
+ generate_copy(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym"
+ DEPENDS scripts_sym_out)
+ generate_copy(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers"
+ DEPENDS scripts_vers_out)
+
+ add_custom_target(genvers
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
+ add_custom_target(gensym
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
+
+ add_custom_target("genprebuilt"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DOUTPUT=scripts/pnglibconf.h.prebuilt"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+
+ # A single target handles generation of all generated files.
+ add_custom_target(genfiles
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym" gensym
+ "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers" 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
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out" scripts_intprefix_out
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c" scripts_pnglibconf_c
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" scripts_prefix_out
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" scripts_sym_out
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk" scripts_symbols_chk
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" scripts_symbols_out
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out" scripts_vers_out)
+endif(NOT AWK OR ANDROID OR IOS)
+
+# List the source code files.
set(libpng_public_hdrs
- png.h
- pngconf.h
- ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h
+ png.h
+ pngconf.h
+ "${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}
- pngdebug.h
- pnginfo.h
- pngpriv.h
- pngstruct.h
- 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_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}
+ ${libpng_powerpc_sources}
)
set(pngtest_sources
- pngtest.c
+ pngtest.c
)
set(pngvalid_sources
- contrib/libtests/pngvalid.c
+ contrib/libtests/pngvalid.c
)
set(pngstest_sources
- contrib/libtests/pngstest.c
+ contrib/libtests/pngstest.c
+)
+set(pngunknown_sources
+ contrib/libtests/pngunknown.c
+)
+set(pngimage_sources
+ contrib/libtests/pngimage.c
+)
+set(pngfix_sources
+ contrib/tools/pngfix.c
+)
+set(png_fix_itxt_sources
+ contrib/tools/png-fix-itxt.c
)
-# SOME NEEDED DEFINITIONS
if(MSVC)
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
-endif(MSVC)
+endif()
if(PNG_DEBUG)
add_definitions(-DPNG_DEBUG)
endif()
-# NOW BUILD OUR TARGET
-include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
+# Now build our target.
+include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIRS})
unset(PNG_LIB_TARGETS)
if(PNG_SHARED)
- add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
- set(PNG_LIB_TARGETS ${PNG_LIB_NAME})
+ add_library(png SHARED ${libpng_sources})
+ set(PNG_LIB_TARGETS png)
+ set_target_properties(png PROPERTIES OUTPUT_NAME ${PNG_LIB_NAME})
+ add_dependencies(png genfiles)
if(MSVC)
- # msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
- set_target_properties(${PNG_LIB_NAME} PROPERTIES IMPORT_PREFIX "lib")
+ # MVC does not append 'lib'. Do it here, to have consistent name.
+ set_target_properties(png PROPERTIES PREFIX "lib")
+ set_target_properties(png PROPERTIES IMPORT_PREFIX "lib")
+ endif()
+ target_link_libraries(png ${ZLIB_LIBRARIES} ${M_LIBRARY})
+
+ if(UNIX AND AWK)
+ if(HAVE_LD_VERSION_SCRIPT)
+ set_target_properties(png PROPERTIES
+ LINK_FLAGS "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
+ elseif(HAVE_SOLARIS_LD_VERSION_SCRIPT)
+ set_target_properties(png PROPERTIES
+ LINK_FLAGS "-Wl,-M -Wl,'${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
+ endif()
endif()
- target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
if(PNG_STATIC)
-# does not work without changing name
- set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
- add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
- list(APPEND PNG_LIB_TARGETS ${PNG_LIB_NAME_STATIC})
+ # does not work without changing name
+ set(PNG_LIB_NAME_STATIC png_static)
+ add_library(png_static STATIC ${libpng_sources})
+ add_dependencies(png_static genfiles)
+ # MSVC doesn't use a different file extension for shared vs. static
+ # libs. We are able to change OUTPUT_NAME to remove the _static
+ # for all other platforms.
+ if(NOT MSVC)
+ set_target_properties(png_static PROPERTIES
+ OUTPUT_NAME "${PNG_LIB_NAME}"
+ CLEAN_DIRECT_OUTPUT 1)
+ else()
+ set_target_properties(png_static PROPERTIES
+ OUTPUT_NAME "${PNG_LIB_NAME}_static"
+ CLEAN_DIRECT_OUTPUT 1)
+ endif()
+ list(APPEND PNG_LIB_TARGETS png_static)
if(MSVC)
- # msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
+ # MSVC does not append 'lib'. Do it here, to have consistent name.
+ set_target_properties(png_static PROPERTIES PREFIX "lib")
endif()
- target_link_libraries(${PNG_LIB_NAME_STATIC} ${ZLIB_LIBRARY} ${M_LIBRARY})
+ target_link_libraries(png_static ${ZLIB_LIBRARIES} ${M_LIBRARY})
+endif()
+
+if(PNG_FRAMEWORK)
+ set(PNG_LIB_NAME_FRAMEWORK png_framework)
+ add_library(png_framework SHARED ${libpng_sources})
+ add_dependencies(png_framework genfiles)
+ list(APPEND PNG_LIB_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)
+ target_link_libraries(png_framework ${ZLIB_LIBRARIES} ${M_LIBRARY})
endif()
if(NOT PNG_LIB_TARGETS)
- message(SEND_ERROR
- "No library variant selected to build. "
- "Please enable at least one of the following options: PNG_STATIC, PNG_SHARED")
+ message(SEND_ERROR "No library variant selected to build. "
+ "Please enable at least one of the following options: "
+ "PNG_STATIC, PNG_SHARED, PNG_FRAMEWORK")
endif()
if(PNG_SHARED AND WIN32)
- set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
+ set_target_properties(png PROPERTIES
+ DEFINE_SYMBOL PNG_BUILD_DLL)
endif()
+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/test.cmake.in"
+ "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake"
+ @ONLY)
+ add_test(NAME "${_PAT_NAME}"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DLIBPNG=$<TARGET_FILE:png>"
+ "-DTEST_COMMAND=$<TARGET_FILE:${_PAT_COMMAND}>"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake")
+endfunction()
+
if(PNG_TESTS AND PNG_SHARED)
- # does not work with msvc due to png_lib_ver issue
+ # Find test PNG files by globbing, but sort lists to ensure
+ # consistency between different filesystems.
+ file(GLOB PNGSUITE_PNGS "${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 ${PNG_LIB_NAME})
- add_test(pngtest ./pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png)
- #
+ target_link_libraries(pngtest png)
+
+ png_add_test(NAME pngtest
+ COMMAND pngtest
+ FILES "${PNGTEST_PNG}")
+
add_executable(pngvalid ${pngvalid_sources})
- target_link_libraries(pngvalid ${PNG_LIB_NAME})
- add_test(pngvalid ./pngvalid)
+ target_link_libraries(pngvalid png)
+
+ 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 ${PNG_LIB_NAME})
- add_test(pngstest ./pngstest
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g01.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g02.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g04.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p01.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p02.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p04.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g01.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g02.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g04.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn2c16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn3p08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn2c16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn3p08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbrn2c08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn0g16.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn3p08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbyn3p08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n0g08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n2c08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n3p08.png
- ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp1n3p08.png
- )
-endif()
-
-# Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set
-IF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
- SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
-ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY)
-
-# Set a variable with CMake code which:
-# Creates a symlink from src to dest (if possible) or alternatively
-# copies if different.
-macro(CREATE_SYMLINK SRC_FILE DEST_FILE)
- FILE(REMOVE ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE})
- if(WIN32 AND NOT CYGWIN AND NOT MSYS)
- ADD_CUSTOM_COMMAND(
- OUTPUT ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE}
- COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}
- COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE}
- DEPENDS ${PNG_LIB_TARGETS}
- )
- ADD_CUSTOM_TARGET(${DEST_FILE}_COPY ALL DEPENDS ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE})
- else(WIN32 AND NOT CYGWIN AND NOT MSYS)
- get_filename_component(LINK_TARGET "${SRC_FILE}" NAME)
- execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
- execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
- execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
- endif(WIN32 AND NOT CYGWIN AND NOT MSYS)
-endmacro()
+ target_link_libraries(pngstest png)
+
+ 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 ${pngunknown_sources})
+ target_link_libraries(pngunknown png)
+
+ png_add_test(NAME pngunknown-discard
+ COMMAND pngunknown
+ OPTIONS --strict default=discard
+ FILES "${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 png)
+
+ 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_EXECUTABLES)
+ add_executable(pngfix ${pngfix_sources})
+ target_link_libraries(pngfix png)
+ set(PNG_BIN_TARGETS pngfix)
+
+ add_executable(png-fix-itxt ${png_fix_itxt_sources})
+ target_link_libraries(png-fix-itxt ${ZLIB_LIBRARIES} ${M_LIBRARY})
+ list(APPEND PNG_BIN_TARGETS png-fix-itxt)
+endif()
+
+# Creates a symlink from src to dest (if possible), or, alternatively,
+# copies src to dest if different.
+include(CMakeParseArguments)
+function(create_symlink DEST_FILE)
+ cmake_parse_arguments(S "" "FILE;TARGET" "" ${ARGN})
+
+ if(NOT S_TARGET AND NOT S_FILE)
+ message(FATAL_ERROR "create_symlink: Missing TARGET or FILE argument")
+ endif()
+
+ if(S_TARGET AND S_FILE)
+ message(FATAL_ERROR "create_symlink: "
+ "Both source file ${S_FILE} and build target ${S_TARGET} arguments are present; "
+ "can only have one")
+ endif()
+
+ if(S_FILE)
+ # If we don't need to symlink something that's coming from a build target,
+ # we can go ahead and symlink/copy at configure time.
+ if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
+ execute_process(COMMAND "${CMAKE_COMMAND}"
+ -E copy_if_different
+ ${S_FILE} ${DEST_FILE}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ else()
+ execute_process(COMMAND "${CMAKE_COMMAND}"
+ -E create_symlink
+ ${S_FILE} ${DEST_FILE}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ endif()
+ endif()
+
+ if(S_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 ${S_TARGET}
+ POST_BUILD
+ COMMAND "${CMAKE_COMMAND}"
+ -E copy_if_different
+ $<TARGET_LINKER_FILE_NAME:${S_TARGET}>
+ $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
+ else()
+ add_custom_command(TARGET ${S_TARGET}
+ POST_BUILD
+ COMMAND "${CMAKE_COMMAND}"
+ -E create_symlink
+ $<TARGET_LINKER_FILE_NAME:${S_TARGET}>
+ $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
+ endif()
+ endif()
+endfunction()
+
+# Create source generation scripts.
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genchk.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake
+ @ONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genout.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake
+ @ONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/gensrc.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake
+ @ONLY)
# libpng is a library so default to 'lib'
if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
set(CMAKE_INSTALL_LIBDIR lib)
-endif(NOT DEFINED CMAKE_INSTALL_LIBDIR)
+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
-# a UNIX look alike
+# 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 ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
- set(includedir ${CMAKE_INSTALL_PREFIX}/include)
+ 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
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
- CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc)
-
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
+ @ONLY)
+ create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
- CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config)
-endif(NOT WIN32 OR CYGWIN OR MINGW)
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+ @ONLY)
+ create_symlink(libpng-config FILE ${PNGLIB_NAME}-config)
+endif()
-# SET UP LINKS
+# Set up links.
if(PNG_SHARED)
- set_target_properties(${PNG_LIB_NAME} PROPERTIES
-# VERSION 16.${PNGLIB_RELEASE}.1.6.13
- VERSION 16.${PNGLIB_RELEASE}.0
- SOVERSION 16
+ set_target_properties(png PROPERTIES
+ VERSION ${PNGLIB_SHARED_VERSION}
+ SOVERSION ${PNGLIB_SHARED_SOVERSION}
CLEAN_DIRECT_OUTPUT 1)
endif()
-if(PNG_STATIC)
- # MSVC doesn't use a different file extension for shared vs. static
- # libs. We are able to change OUTPUT_NAME to remove the _static
- # for all other platforms.
- if(NOT MSVC)
- set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
- OUTPUT_NAME ${PNG_LIB_NAME}
- CLEAN_DIRECT_OUTPUT 1)
- endif()
-endif()
-# If CMake > 2.4.x, we set a variable used below to export
-# targets to an export file.
-# TODO: Use VERSION_GREATER after our cmake_minimum_required >= 2.6.2
-if(CMAKE_MAJOR_VERSION GREATER 1 AND CMAKE_MINOR_VERSION GREATER 4)
- set(PNG_EXPORT_RULE EXPORT libpng)
-elseif(CMAKE_MAJOR_VERSION GREATER 2) # future proof
- set(PNG_EXPORT_RULE EXPORT libpng)
-endif()
-
-# INSTALL
-if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
+# Install.
+if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
install(TARGETS ${PNG_LIB_TARGETS}
- ${PNG_EXPORT_RULE}
- RUNTIME DESTINATION bin
- LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
- ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ EXPORT libpng
+ RUNTIME DESTINATION bin
+ 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(CYGWIN OR MINGW)
- get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE})
- CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_IMPORT_LIBRARY_SUFFIX})
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif(CYGWIN OR MINGW)
+ create_symlink(libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} TARGET png)
+ install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
if(NOT WIN32)
- get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE})
- CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_SHARED_LIBRARY_SUFFIX})
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif(NOT WIN32)
- endif(PNG_SHARED)
+ create_symlink(libpng${CMAKE_SHARED_LIBRARY_SUFFIX} TARGET png)
+ install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
+ endif()
if(PNG_STATIC)
if(NOT WIN32 OR CYGWIN OR MINGW)
- get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME_STATIC} LOCATION_${CMAKE_BUILD_TYPE})
- CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_STATIC_LIBRARY_SUFFIX})
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif(NOT WIN32 OR CYGWIN OR MINGW)
- endif()
+ create_symlink(libpng${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 include)
- install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME})
+if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL)
+ install(FILES ${libpng_public_hdrs}
+ DESTINATION include)
+ install(FILES ${libpng_public_hdrs}
+ DESTINATION include/${PNGLIB_NAME})
endif()
-if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL )
+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 bin)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
+ DESTINATION bin)
install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
DESTINATION bin)
- endif(NOT WIN32 OR CYGWIN OR MINGW)
+ endif()
endif()
-if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
- # Install man pages
- if(NOT PNG_MAN_DIR)
- set(PNG_MAN_DIR "share/man")
- endif()
- install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3)
- install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5)
- # Install pkg-config files
- if(NOT WIN32 OR CYGWIN OR MINGW)
+if(NOT SKIP_INSTALL_PROGRAMS AND NOT SKIP_INSTALL_ALL)
+ install(TARGETS ${PNG_BIN_TARGETS}
+ RUNTIME DESTINATION bin)
+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 bin)
+ DESTINATION ${CMAKE_INSTALL_BINDIR})
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
- DESTINATION bin)
- endif(NOT WIN32 OR CYGWIN OR MINGW)
+ DESTINATION ${CMAKE_INSTALL_BINDIR})
+ endif()
endif()
-# On versions of CMake that support it, create an export file CMake
-# users can include() to import our targets
-if(PNG_EXPORT_RULE AND NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL )
- install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake)
+# 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 lib/libpng
+ FILE lib${PNG_LIB_NAME}.cmake)
endif()
-# what's with libpng-manual.txt and all the extra files?
-
-# UNINSTALL
-# do we need this?
-
-# DIST
-# do we need this?
-
-# to create msvc import lib for mingw compiled shared lib
+# TODO: Create MSVC import lib for MinGW-compiled shared lib.
# pexports libpng.dll > libpng.def
# lib /def:libpng.def /machine:x86
-
projects / platform / upstream / libpng.git / blobdiff