diff cmake/packages/FindSDL2_image.cmake @ 182:3107ce017c3a

Misc: switch back to SDL Qt Quick and QML was an exciting experiment but it's definitely not enough flexible and easy to use for game development. Using SDL2 will let us focusing on our own drawing functions without any kind of overhead. While here, start massive cleanup.
author David Demelier <markand@malikania.fr>
date Fri, 19 Oct 2018 20:18:19 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmake/packages/FindSDL2_image.cmake	Fri Oct 19 20:18:19 2018 +0200
@@ -0,0 +1,70 @@
+# - Locate SDL_image library
+# This module defines:
+#  SDL2_IMAGE_LIBRARIES, the name of the library to link against
+#  SDL2_IMAGE_INCLUDE_DIRS, where to find the headers
+#  SDL2_IMAGE_FOUND, if false, do not try to link against
+#  SDL2_IMAGE_VERSION_STRING - human-readable string containing the version of SDL_image
+#
+# $SDLDIR is an environment variable that would
+# correspond to the ./configure --prefix=$SDLDIR
+# used in building SDL.
+#
+# Created by Eric Wing. This was influenced by the FindSDL.cmake
+# module, but with modifications to recognize OS X frameworks and
+# additional Unix paths (FreeBSD, etc).
+
+#=============================================================================
+# Copyright 2005-2009 Kitware, Inc.
+# Copyright 2012 Benjamin Eikel
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+find_path(SDL2_IMAGE_INCLUDE_DIR SDL_image.h
+  HINTS
+    ENV SDLIMAGEDIR
+    ENV SDLDIR
+  PATH_SUFFIXES include/SDL2 include/SDL2.0 include
+)
+
+find_library(SDL2_IMAGE_LIBRARY
+  NAMES SDL2_image SDL2_image-2.0
+  HINTS
+    ENV SDLIMAGEDIR
+    ENV SDLDIR
+  PATH_SUFFIXES lib
+)
+
+if(SDL2_IMAGE_INCLUDE_DIR AND EXISTS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h")
+  file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$")
+  file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$")
+  file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+[0-9]+$")
+  string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MAJOR "${SDL2_IMAGE_VERSION_MAJOR_LINE}")
+  string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MINOR "${SDL2_IMAGE_VERSION_MINOR_LINE}")
+  string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_PATCH "${SDL2_IMAGE_VERSION_PATCH_LINE}")
+  set(SDL2_IMAGE_VERSION_STRING ${SDL2_IMAGE_VERSION_MAJOR}.${SDL2_IMAGE_VERSION_MINOR}.${SDL2_IMAGE_VERSION_PATCH})
+  unset(SDL2_IMAGE_VERSION_MAJOR_LINE)
+  unset(SDL2_IMAGE_VERSION_MINOR_LINE)
+  unset(SDL2_IMAGE_VERSION_PATCH_LINE)
+  unset(SDL2_IMAGE_VERSION_MAJOR)
+  unset(SDL2_IMAGE_VERSION_MINOR)
+  unset(SDL2_IMAGE_VERSION_PATCH)
+endif()
+
+set(SDL2_IMAGE_LIBRARIES ${SDL2_IMAGE_LIBRARY})
+set(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_image
+                                  REQUIRED_VARS SDL2_IMAGE_LIBRARIES SDL2_IMAGE_INCLUDE_DIRS
+                                  VERSION_VAR SDL2_IMAGE_VERSION_STRING)
+
+mark_as_advanced(SDL2_IMAGE_LIBRARY SDL2_IMAGE_INCLUDE_DIR)