From a36e68512346ba2516c4affceba8571b906e2b6a Mon Sep 17 00:00:00 2001
From: Thomas Debesse <dev@illwieckz.net>
Date: Fri, 6 Jul 2018 21:22:25 +0200
Subject: [PATCH] webp: add cmake support

---
 README.md                        |  1 +
 cmake/FindWebP.cmake             | 73 ++++++++++++++++++++++++++++++++
 plugins/CMakeLists.txt           |  1 +
 plugins/imagewebp/CMakeLists.txt |  7 +++
 tools/quake3/CMakeLists.txt      |  4 ++
 5 files changed, 86 insertions(+)
 create mode 100644 cmake/FindWebP.cmake
 create mode 100644 plugins/imagewebp/CMakeLists.txt

diff --git a/README.md b/README.md
index eb6bf975..428c172b 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ See also https://gitlab.com/xonotic/netradiant/ for a source browser, issues and
  * GtkGLExt
  * LibJpeg
  * LibPng
+ * LibWebp
  * Minizip
  * ZLib
 
diff --git a/cmake/FindWebP.cmake b/cmake/FindWebP.cmake
new file mode 100644
index 00000000..08682557
--- /dev/null
+++ b/cmake/FindWebP.cmake
@@ -0,0 +1,73 @@
+# - Find WebP library
+# Find the native WebP headers and libraries.
+#
+#  WEBP_INCLUDE_DIRS - where to find webp/decode.h, etc.
+#  WEBP_LIBRARIES    - List of libraries when using webp.
+#  WEBP_FOUND        - True if webp is found.
+
+#=============================================================================
+#Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+#All rights reserved.
+#
+#Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#* Redistributions of source code must retain the above copyright notice,
+#this list of conditions and the following disclaimer.
+#
+#* Redistributions in binary form must reproduce the above copyright notice,
+#this list of conditions and the following disclaimer in the documentation
+#and/or other materials provided with the distribution.
+#
+#* Neither the names of Kitware, Inc., the Insight Software Consortium, nor
+#the names of their contributors may be used to endorse or promote products
+#derived from this software without specific prior written  permission.
+#
+#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+#ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+#LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+#CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+#SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+#INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+#CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+#ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+#POSSIBILITY OF SUCH DAMAGE.
+#=============================================================================
+
+# Look for the header file.
+FIND_PATH(WEBP_INCLUDE_DIR NAMES webp/decode.h)
+MARK_AS_ADVANCED(WEBP_INCLUDE_DIR)
+
+# Look for the library.
+FIND_LIBRARY(WEBP_LIBRARY NAMES webp)
+MARK_AS_ADVANCED(WEBP_LIBRARY)
+
+# handle the QUIETLY and REQUIRED arguments and set WEBFOUND_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(WebP DEFAULT_MSG WEBP_LIBRARY WEBP_INCLUDE_DIR)
+
+SET(WEBP_LIBRARIES ${WEBP_LIBRARY})
+SET(WEBP_INCLUDE_DIRS ${WEBP_INCLUDE_DIR})
+
+SET(_WEBP_RQ_INCLUDES ${CMAKE_REQUIRED_INCLUDES})
+
+if(NOT DEFINED _WEBP_COMPILATION_TEST)
+  INCLUDE (CheckCSourceCompiles)
+  SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${WEBP_INCLUDE_DIRS})
+  CHECK_C_SOURCE_COMPILES("#include <webp/decode.h>
+  int main(void) {
+  #if WEBP_DECODER_ABI_VERSION < 0x0200
+  error; // Deliberate compile-time error
+  #endif
+  return 0;
+  }"
+   _WEBP_COMPILATION_TEST)
+  SET(CMAKE_REQUIRED_INCLUDES ${_WEBP_RQ_INCLUDES})
+endif()
+
+if(NOT _WEBP_COMPILATION_TEST)
+  set( USE_INTERNAL_WEBP 1 )
+endif()
diff --git a/plugins/CMakeLists.txt b/plugins/CMakeLists.txt
index d6c7f075..80f45f1f 100644
--- a/plugins/CMakeLists.txt
+++ b/plugins/CMakeLists.txt
@@ -25,6 +25,7 @@ endif()
 add_subdirectory(imagehl)
 add_subdirectory(imagepng)
 add_subdirectory(imageq2)
+add_subdirectory(imagewebp)
 add_subdirectory(iqmmodel)
 add_subdirectory(mapq3)
 add_subdirectory(mapxml)
diff --git a/plugins/imagewebp/CMakeLists.txt b/plugins/imagewebp/CMakeLists.txt
new file mode 100644
index 00000000..baac0cae
--- /dev/null
+++ b/plugins/imagewebp/CMakeLists.txt
@@ -0,0 +1,7 @@
+radiant_plugin(imagewebp
+        plugin.cpp
+        )
+
+find_package(WebP REQUIRED)
+target_include_directories(imagewebp PRIVATE ${WEBP_INCLUDE_DIR})
+target_link_libraries(imagewebp PRIVATE ${WEBP_LIBRARIES})
diff --git a/tools/quake3/CMakeLists.txt b/tools/quake3/CMakeLists.txt
index 2dfc9ef9..b1e8e67b 100644
--- a/tools/quake3/CMakeLists.txt
+++ b/tools/quake3/CMakeLists.txt
@@ -22,6 +22,9 @@ include_directories(${JPEG_INCLUDE_DIR})
 find_package(PNG REQUIRED)
 include_directories(${PNG_INCLUDE_DIR})
 
+find_package(WebP REQUIRED)
+include_directories(${WEBP_INCLUDE_DIR})
+
 find_package(LibXml2 REQUIRED)
 include_directories(${LIBXML2_INCLUDE_DIR})
 
@@ -135,6 +138,7 @@ target_link_libraries(q3map2
         ${GLIB_LIBRARIES}
         ${JPEG_LIBRARIES}
         ${PNG_LIBRARIES}
+        ${WEBP_LIBRARIES}
         ${LIBXML2_LIBRARIES}
         ${Minizip_LIBRARIES}
         ${ZLIB_LIBRARIES}
-- 
2.39.2