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cmake/Modules/FindSDL_gfx.cmake

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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindSDL_gfx
-----------
.. versionadded:: 3.25
Locate SDL_gfx library
This module defines:
::
SDL::SDL_gfx, the name of the target to use with target_*() commands
SDL_GFX_LIBRARIES, the name of the library to link against
SDL_GFX_INCLUDE_DIRS, where to find the headers
SDL_GFX_FOUND, if false, do not try to link against
SDL_GFX_VERSION_STRING - human-readable string containing the
version of SDL_gfx
``$SDLDIR`` is an environment variable that would correspond to the
``./configure --prefix=$SDLDIR`` used in building SDL.
#]=======================================================================]
cmake_policy(PUSH)
cmake_policy(SET CMP0159 NEW) # file(STRINGS) with REGEX updates CMAKE_MATCH_<n>
find_path(SDL_GFX_INCLUDE_DIRS
NAMES
SDL_framerate.h
SDL_gfxBlitFunc.h
SDL_gfxPrimitives.h
SDL_gfxPrimitives_font.h
SDL_imageFilter.h
SDL_rotozoom.h
HINTS
ENV SDLGFXDIR
ENV SDLDIR
PATH_SUFFIXES SDL
# path suffixes to search inside ENV{SDLDIR}
include/SDL include/SDL12 include/SDL11 include
)
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(VC_LIB_PATH_SUFFIX lib/x64)
else()
set(VC_LIB_PATH_SUFFIX lib/x86)
endif()
find_library(SDL_GFX_LIBRARIES
NAMES SDL_gfx
HINTS
ENV SDLGFXDIR
ENV SDLDIR
PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
)
if(SDL_GFX_INCLUDE_DIRS AND EXISTS "${SDL_GFX_INCLUDE_DIRS}/SDL_gfxPrimitives.h")
file(STRINGS "${SDL_GFX_INCLUDE_DIRS}/SDL_gfxPrimitives.h" SDL_GFX_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_GFXPRIMITIVES_MAJOR[ \t]+[0-9]+$")
file(STRINGS "${SDL_GFX_INCLUDE_DIRS}/SDL_gfxPrimitives.h" SDL_GFX_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_GFXPRIMITIVES_MINOR[ \t]+[0-9]+$")
file(STRINGS "${SDL_GFX_INCLUDE_DIRS}/SDL_gfxPrimitives.h" SDL_GFX_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_GFXPRIMITIVES_MICRO[ \t]+[0-9]+$")
string(REGEX REPLACE "^#define[ \t]+SDL_GFXPRIMITIVES_MAJOR[ \t]+([0-9]+)$" "\\1" SDL_GFX_VERSION_MAJOR "${SDL_GFX_VERSION_MAJOR_LINE}")
string(REGEX REPLACE "^#define[ \t]+SDL_GFXPRIMITIVES_MINOR[ \t]+([0-9]+)$" "\\1" SDL_GFX_VERSION_MINOR "${SDL_GFX_VERSION_MINOR_LINE}")
string(REGEX REPLACE "^#define[ \t]+SDL_GFXPRIMITIVES_MICRO[ \t]+([0-9]+)$" "\\1" SDL_GFX_VERSION_PATCH "${SDL_GFX_VERSION_PATCH_LINE}")
set(SDL_GFX_VERSION_STRING ${SDL_GFX_VERSION_MAJOR}.${SDL_GFX_VERSION_MINOR}.${SDL_GFX_VERSION_PATCH})
unset(SDL_GFX_VERSION_MAJOR_LINE)
unset(SDL_GFX_VERSION_MINOR_LINE)
unset(SDL_GFX_VERSION_PATCH_LINE)
unset(SDL_GFX_VERSION_MAJOR)
unset(SDL_GFX_VERSION_MINOR)
unset(SDL_GFX_VERSION_PATCH)
endif()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL_gfx
REQUIRED_VARS SDL_GFX_LIBRARIES SDL_GFX_INCLUDE_DIRS
VERSION_VAR SDL_GFX_VERSION_STRING)
if(SDL_gfx_FOUND)
if(NOT TARGET SDL::SDL_gfx)
add_library(SDL::SDL_gfx INTERFACE IMPORTED)
set_target_properties(SDL::SDL_gfx PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${SDL_GFX_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${SDL_GFX_LIBRARIES}")
endif()
endif()
cmake_policy(POP)