cmake_modules/FindSDL2_ttf.cmake
author Wuzzy <Wuzzy2@mail.ru>
Thu, 11 Jul 2019 16:24:09 +0200
changeset 15252 c10e9261ab9c
parent 12383 e3d9abcc427a
permissions -rw-r--r--
Make lowest line of Splash image frames transparent to work around scaling issues The Splash image is scaled. Sometimes, the lowest line is repeated on the top, which caused some weird lines to appear above big splashes (e.g. piano). This has been done fully automated with a script. Only the alpha channel was changed. The color information is preserved.
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# - Locate SDL2_ttf library
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# This module defines:
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#  SDL2_TTF_LIBRARIES, the name of the library to link against
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#  SDL2_TTF_INCLUDE_DIRS, where to find the headers
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#  SDL2_TTF_FOUND, if false, do not try to link against
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#  SDL2_TTF_VERSION_STRING - human-readable string containing the version of SDL2_ttf
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#
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# For backward compatiblity the following variables are also set:
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#  SDL2TTF_LIBRARY (same value as SDL2_TTF_LIBRARIES)
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#  SDL2TTF_INCLUDE_DIR (same value as SDL2_TTF_INCLUDE_DIRS)
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#  SDL2TTF_FOUND (same value as SDL2_TTF_FOUND)
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#
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# $SDL2DIR is an environment variable that would
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# correspond to the ./configure --prefix=$SDL2DIR
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# used in building SDL2.
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#
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# Created by Eric Wing. This was influenced by the FindSDL2.cmake
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# module, but with modifications to recognize OS X frameworks and
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# additional Unix paths (FreeBSD, etc).
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#=============================================================================
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# Copyright 2005-2009 Kitware, Inc.
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# Copyright 2012 Benjamin Eikel
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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#  License text for the above reference.)
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if(NOT SDL2_TTF_INCLUDE_DIR AND SDL2TTF_INCLUDE_DIR)
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  set(SDL2_TTF_INCLUDE_DIR ${SDL2TTF_INCLUDE_DIR} CACHE PATH "directory cache
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entry initialized from old variable name")
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endif()
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find_path(SDL2_TTF_INCLUDE_DIR SDL_ttf.h
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  HINTS
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    ENV SDL2TTFDIR
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    ENV SDL2DIR
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  PATH_SUFFIXES include/SDL2 include
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)
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if(NOT SDL2_TTF_LIBRARY AND SDL2TTF_LIBRARY)
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  set(SDL2_TTF_LIBRARY ${SDL2TTF_LIBRARY} CACHE FILEPATH "file cache entry
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initialized from old variable name")
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endif()
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find_library(SDL2_TTF_LIBRARY
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  NAMES SDL2_ttf
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  HINTS
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    ENV SDL2TTFDIR
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    ENV SDL2DIR
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  PATH_SUFFIXES lib
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)
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if(SDL2_TTF_INCLUDE_DIR AND EXISTS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h")
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  file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_TTF_MAJOR_VERSION[ \t]+[0-9]+$")
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  file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_TTF_MINOR_VERSION[ \t]+[0-9]+$")
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  file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_TTF_PATCHLEVEL[ \t]+[0-9]+$")
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  string(REGEX REPLACE "^#define[ \t]+SDL_TTF_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_MAJOR "${SDL2_TTF_VERSION_MAJOR_LINE}")
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  string(REGEX REPLACE "^#define[ \t]+SDL_TTF_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_MINOR "${SDL2_TTF_VERSION_MINOR_LINE}")
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  string(REGEX REPLACE "^#define[ \t]+SDL_TTF_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_PATCH "${SDL2_TTF_VERSION_PATCH_LINE}")
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  set(SDL2_TTF_VERSION_STRING ${SDL2_TTF_VERSION_MAJOR}.${SDL2_TTF_VERSION_MINOR}.${SDL2_TTF_VERSION_PATCH})
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  unset(SDL2_TTF_VERSION_MAJOR_LINE)
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  unset(SDL2_TTF_VERSION_MINOR_LINE)
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  unset(SDL2_TTF_VERSION_PATCH_LINE)
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  unset(SDL2_TTF_VERSION_MAJOR)
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  unset(SDL2_TTF_VERSION_MINOR)
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  unset(SDL2_TTF_VERSION_PATCH)
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endif()
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set(SDL2_TTF_LIBRARIES ${SDL2_TTF_LIBRARY})
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set(SDL2_TTF_INCLUDE_DIRS ${SDL2_TTF_INCLUDE_DIR})
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if(BUILD_ENGINE_JS)
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    set(SDL2_TTF_LIBRARY "sdl2_ttf_emscripten_internal")
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    set(SDL2_TTF_LIBRARIES "sdl2_ttf_emscripten_internal")
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    set(SDL2_TTF_INCLUDE_DIRS "${CMAKE_SYSTEM_INCLUDE_PATH}/SDL")
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endif()
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include(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_ttf
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                                  REQUIRED_VARS SDL2_TTF_LIBRARIES SDL2_TTF_INCLUDE_DIRS
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                                  VERSION_VAR SDL2_TTF_VERSION_STRING)
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# for backward compatiblity
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set(SDLTTF_LIBRARY ${SDL2_TTF_LIBRARIES})
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set(SDLTTF_INCLUDE_DIR ${SDL2_TTF_INCLUDE_DIRS})
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set(SDLTTF_FOUND ${SDL2_TTF_FOUND})
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mark_as_advanced(SDL2_TTF_LIBRARY SDL2_TTF_INCLUDE_DIR)