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CMake: better handling of per-config options, esp. in single-config
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@ -79,6 +79,7 @@ include(GNUInstallDirs) # Defines CMAKE_INSTALL_<dir> variables
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# Include global modules needed for configure scripts
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include(PackageConfig) # Defines package_option
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include(PerConfigOption) # Defines per_config_option
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# Configure Panda3D
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include(dtool/CompilerFlags.cmake)
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50
cmake/macros/PerConfigOption.cmake
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50
cmake/macros/PerConfigOption.cmake
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@ -0,0 +1,50 @@
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# Filename: PerConfigOption.cmake
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#
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# This contains a convenience function for defining per-config options.
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# In single-config generators, it will set the option based on the defined
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# CMAKE_BUILD_TYPE. In multi-config generators, it will create separate
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# options, one per config.
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#
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# Function: per_config_option
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# Usage:
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# option(name "help string" [Config1] [Config2] [...ConfigN])
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#
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# Example:
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# per_config_option(DO_DEBUGGING "Enables debugging." Debug Standard)
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set(_PER_CONFIG_OPTIONS CACHE INTERNAL "Internal variable")
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function(per_config_option name help)
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set(_configs ${ARGN})
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# In single-config generatotrs, we simply create one config.
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if(NOT IS_MULTICONFIG)
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list(FIND _configs "${CMAKE_BUILD_TYPE}" _index)
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if(${_index} GREATER -1)
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option("${name}" "${help}" ON)
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else()
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option("${name}" "${help}" OFF)
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endif()
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elseif(DEFINED "${name}")
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# It's been explicitly defined, so that makes it not a multi-configuration
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# variable anymore.
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option("${name}" "${help}")
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return()
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else()
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foreach(_config ${CMAKE_CONFIGURATION_TYPES})
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string(TOUPPER "${_config}" _config_upper)
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list(FIND _configs "${_config}" _index)
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if(${_index} GREATER -1)
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option("${name}_${_config_upper}" "${help}" ON)
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else()
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option("${name}_${_config_upper}" "${help}" OFF)
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endif()
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endforeach()
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endif()
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list(APPEND _PER_CONFIG_OPTIONS "${name}")
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set(_PER_CONFIG_OPTIONS "${_PER_CONFIG_OPTIONS}" CACHE INTERNAL "Internal variable")
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endfunction(per_config_option)
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@ -33,8 +33,6 @@ if(IS_MULTICONFIG)
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set(CMAKE_CONFIGURATION_TYPES ${_configs})
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endif()
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set(PER_CONFIG_OPTIONS)
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# Are we building with static or dynamic linking?
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option(BUILD_SHARED_LIBS
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"Causes subpackages to be built separately -- setup for dynamic linking.
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@ -204,10 +202,9 @@ set(PRC_INC_TRUST_LEVEL "0" CACHE STRING
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# Similarly, the descriptions are normally saved only in a
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# development build, not in a release build. Set this value true to
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# explicitly save them anyway.
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#XXX only for release-release builds
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option(PRC_SAVE_DESCRIPTIONS
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per_config_option(PRC_SAVE_DESCRIPTIONS
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"Define if you want to save the descriptions for ConfigVariables."
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ON)
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Debug Standard)
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mark_as_advanced(DEFAULT_PRC_DIR PRC_DIR_ENVVARS PRC_PATH_ENVVARS
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PRC_PATTERNS PRC_ENCRYPTED_PATTERNS PRC_ENCRYPTION_KEY
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@ -254,49 +251,46 @@ debugging information." OFF)
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mark_as_advanced(INTERROGATE_OPTIONS)
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#
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# The following options have to do with the memory allocation system
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# that will be used by Panda3D.
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# The following options have to do with optional debugging features.
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#
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option(DO_MEMORY_USAGE
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per_config_option(DO_MEMORY_USAGE
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"Do you want to compile in support for tracking memory usage? This
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enables you to define the variable 'track-memory-usage' at runtime
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to help track memory leaks, and also report total memory usage on
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PStats. There is some small overhead for having this ability
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available, even if it is unused." OFF)
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list(APPEND PER_CONFIG_OPTIONS DO_MEMORY_USAGE)
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set(DO_MEMORY_USAGE_Debug ON CACHE BOOL "")
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available, even if it is unused." Debug Standard)
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option(SIMULATE_NETWORK_DELAY
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per_config_option(DO_COLLISION_RECORDING
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"Do you want to enable debugging features for the collision system?"
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Debug Standard)
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per_config_option(DO_PSTATS
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"Enable support for performance profiling using PStats?"
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Debug Standard)
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per_config_option(DO_DCAST
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"Add safe typecast checking? This adds significant overhead."
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Debug Standard)
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per_config_option(SIMULATE_NETWORK_DELAY
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"This option compiles in support for simulating network delay via
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the min-lag and max-lag prc variables. It adds a tiny bit of
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overhead even when it is not activated, so it is typically enabled
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only in a development build." OFF)
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list(APPEND PER_CONFIG_OPTIONS SIMULATE_NETWORK_DELAY)
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set(SIMULATE_NETWORK_DELAY_Debug ON CACHE BOOL "")
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only in a development build."
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Debug)
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option(SUPPORT_IMMEDIATE_MODE
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"This option compiles in support for immediate-mode OpenGL
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rendering. Since this is normally useful only for researching
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buggy drivers, and since there is a tiny bit of per-primitive
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overhead to have this option available even if it is unused, it is
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by default enabled only in a development build. This has no effect
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on DirectX rendering." OFF)
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list(APPEND PER_CONFIG_OPTIONS SUPPORT_IMMEDIATE_MODE)
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set(SUPPORT_IMMEDIATE_MODE_Debug ON CACHE BOOL "")
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option(NOTIFY_DEBUG
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per_config_option(NOTIFY_DEBUG
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"Do you want to include the 'debug' and 'spam' Notify messages?
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Normally, these are stripped out when we build for release, but sometimes it's
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useful to keep them around. Turn this setting on to achieve that." OFF)
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list(APPEND PER_CONFIG_OPTIONS NOTIFY_DEBUG)
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set(NOTIFY_DEBUG_Debug ON CACHE BOOL "")
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set(NOTIFY_DEBUG_Standard ON CACHE BOOL "")
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useful to keep them around. Turn this setting on to achieve that."
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Debug Standard)
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option(SUPPORT_FIXED_FUNCTION
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"This option compiles in support for the fixed-function OpenGL
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pipeline. It is only really useful to turn this off if you are targeting
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an OpenGL ES 2 system." ON)
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mark_as_advanced(SIMULATE_NETWORK_DELAY DO_MEMORY_USAGE DO_DCAST)
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#
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# The following options have to do with the memory allocation system.
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#
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option(USE_MEMORY_DLMALLOC
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"This is an optional alternative memory-allocation scheme
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@ -324,8 +318,7 @@ calls to malloc() and free() for frequently-created and -deleted
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objects. There's usually no reason to set this false, unless you
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suspect a bug in Panda's memory management code." ON)
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mark_as_advanced(DO_MEMORY_USAGE SIMULATE_NETWORK_DELAY
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SUPPORT_IMMEDIATE_MODE USE_MEMORY_DLMALLOC USE_MEMORY_PTMALLOC2
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mark_as_advanced(USE_MEMORY_DLMALLOC USE_MEMORY_PTMALLOC2
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MEMORY_HOOK_DO_ALIGN USE_DELETED_CHAIN)
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@ -379,11 +372,11 @@ mark_as_advanced(ANDROID_NDK_HOME ANDROID_ABI ANDROID_STL
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# By default, we'll assume the user only wants to run with Debug
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# python if he has to--that is, on Windows when building a debug build.
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set(USE_DEBUG_PYTHON OFF)
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if(WIN32)
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set(USE_DEBUG_PYTHON_Debug ON)
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per_config_option(USE_DEBUG_PYTHON "" Debug)
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else()
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option(USE_DEBUG_PYTHON "" OFF)
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endif()
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list(APPEND PER_CONFIG_OPTIONS USE_DEBUG_PYTHON)
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cmake_dependent_option(HAVE_VIDEO4LINUX
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"Set this to enable webcam support on Linux." ON
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@ -405,15 +398,27 @@ version and below, which may reduce runtime portability to other
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systems, but it will avoid issues with getting extension function
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pointers.")
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option(SUPPORT_FIXED_FUNCTION
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"This option compiles in support for the fixed-function OpenGL pipeline.
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It is only really useful to turn this off to save space if you are building
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an application that only needs to use an OpenGL 3.2+ context and only uses
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custom GLSL shaders." ON)
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option(SUPPORT_IMMEDIATE_MODE
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"This option compiles in support for immediate-mode OpenGL
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rendering. Since this is normally useful only for researching
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buggy drivers, and since there is a tiny bit of per-primitive
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overhead to have this option available even if it is unused, it is
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by default enabled only in a development build. This has no effect
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on DirectX rendering." OFF)
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mark_as_advanced(SUPPORT_FIXED_FUNCTION)
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# Should build tinydisplay?
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#option(HAVE_TINYDISPLAY
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# "Builds TinyDisplay, a light software renderer based on TinyGL,
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#that is built into Panda. TinyDisplay is not as full-featured as Mesa
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#but is many times faster." ON)
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#option(HAVE_TINYDISPLAY_MinSizeRel "" OFF)
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#list(APPEND PER_CONFIG_OPTIONS HAVE_TINYDISPLAY)
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# Is SDL installed, and where?
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set(Threads_FIND_QUIETLY TRUE) # Fix for builtin FindSDL
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@ -477,9 +482,6 @@ build (such as, for instance, for the iPhone)." ON)
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option(HAVE_AUDIO
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"Do you want to build the audio interface?" ON)
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option(DO_PSTATS
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"Enable the pstats client?" ON)
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option(USE_PANDAFILESTREAM
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"Enable the PandaFileStream implementation of pfstream etc.?" ON)
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@ -492,16 +494,12 @@ option(HAVE_IMG "Enable support for loading IMG images." ON)
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option(HAVE_SOFTIMAGE_PIC "Enable support for loading SOFTIMAGE PIC images." ON)
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option(HAVE_BMP "Enable support for loading BMP images." ON)
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option(HAVE_PNM "Enable support for loading PNM images." ON)
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foreach(adv_image_format
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HAVE_SGI_RGB HAVE_TGA HAVE_IMG HAVE_SOFTIMAGE_PIC HAVE_BMP HAVE_PNM)
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option(${adv_image_format}_MinSizeRel "" OFF)
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list(APPEND PER_CONFIG_OPTIONS ${adv_image_format})
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mark_as_advanced(${adv_image_format} ${adv_image_format}_MinSizeRel)
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endforeach(adv_image_format)
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option(HAVE_SGI_RGB "" ON)
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option(HAVE_TGA "" ON)
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option(HAVE_IMG "" ON)
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option(HAVE_SOFTIMAGE_PIC "" ON)
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option(HAVE_BMP "" ON)
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option(HAVE_PNM "" ON)
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# How to invoke bison and flex. Panda takes advantage of some
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# bison/flex features, and therefore specifically requires bison and
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@ -539,9 +537,9 @@ slightly slow down Panda for the single CPU case."
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IMPORTED_AS Threads::Threads)
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# Configure debug threads
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option(DEBUG_THREADS "If on, enables debugging of thread and sync operations (i.e. mutexes, deadlocks)" OFF)
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list(APPEND PER_CONFIG_OPTIONS DEBUG_THREADS)
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set(DEBUG_THREADS_Debug ON CACHE BOOL "")
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option(DEBUG_THREADS
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"If on, enables debugging of thread and sync operations (i.e. mutexes,
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deadlocks). Very slow, disabled by default." OFF)
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option(SIMPLE_THREADS
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"If on, compile with simulated threads. Threads, by default, use
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@ -551,7 +549,6 @@ On the other hand, compiling in this full OS-provided support can
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impose some substantial runtime overhead, making the application
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run slower on a single-CPU machine. This settings avoid the overhead,
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but still gain some of the basic functionality of threads." OFF)
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list(APPEND PER_CONFIG_OPTIONS SIMPLE_THREADS)
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option(OS_SIMPLE_THREADS
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"If on, OS threading constructs will be used to perform context switches.
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@ -560,7 +557,6 @@ normal SIMPLE_THREADS optimizations still apply, and the normal
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SIMPLE_THREADS scheduler is used to switch between threads (instead
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of the OS scheduler). This may be more portable and more reliable,
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but it is a hybrid between user-space threads and os-provided threads." ON)
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list(APPEND PER_CONFIG_OPTIONS OS_SIMPLE_THREADS)
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### Configure pipelining ###
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option(DO_PIPELINING "If on, compile with pipelined rendering." ON)
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@ -570,8 +566,6 @@ option(COMPILE_IN_DEFAULT_FONT
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"If on, compiles in a default font, so that every TextNode will always
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have a font available without requiring the user to specify one.
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When turned off, the generated library will save a few kilobytes." ON)
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list(APPEND PER_CONFIG_OPTIONS COMPILE_IN_DEFAULT_FONT)
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set(COMPILE_IN_DEFAULT_FONT_MinSizeRel OFF CACHE BOOL "")
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option(STDFLOAT_DOUBLE
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"Define this true to compile a special version of Panda to use a
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@ -186,11 +186,14 @@ message("")
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# Generate dtool_config.h
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if(IS_MULTICONFIG)
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foreach(config ${CMAKE_CONFIGURATION_TYPES})
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foreach(option ${PER_CONFIG_OPTIONS})
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string(TOUPPER "${config}" config_upper)
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foreach(option ${_PER_CONFIG_OPTIONS})
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# Check for the presence of a config-specific option, and override what's
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# in the cache if there is.
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if(DEFINED ${option}_${config})
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set(${option} ${${option}_${config}})
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if(DEFINED "${option}_${config_upper}")
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set(${option} ${${option}_${config_upper}})
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else()
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message(FATAL_ERROR "${option}_${config_upper} is not defined")
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endif()
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endforeach(option)
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@ -199,7 +202,7 @@ if(IS_MULTICONFIG)
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# unset() does not unset CACHE variables by default, just normal variables.
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# By doing this we're reverting back to what was in the cache.
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foreach(option ${PER_CONFIG_OPTIONS})
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foreach(option ${_PER_CONFIG_OPTIONS})
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unset(${option})
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endforeach(option)
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endforeach(config)
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