Adding support for FFmpeg in UWP.

Adding support to download gas-preprocessor as an acquire_program.
Update all packages for msys2
Download perl and gcc for ARM assembly in ffmpeg.

docs/maintainers/vcpkg_find_acquire_program.md

@@ -24,6 +24,7 @@ The current list of programs includes:
 - NASM
 - NINJA
 - YASM
+- GASPREPROCESSOR
 
 Note that msys2 has a dedicated helper function: [`vcpkg_acquire_msys`](vcpkg_acquire_msys.md).
 

ports/ffmpeg/portfile.cmake

@@ -25,16 +25,55 @@ file(REMOVE_RECURSE ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg ${CURRENT_BU
 
 set(OPTIONS "--disable-ffmpeg --disable-ffprobe --disable-doc --enable-debug")
 set(OPTIONS "${OPTIONS} --enable-runtime-cpudetect")
+
+if(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
+    SET(UWP TRUE)
+    set(OPTIONS "${OPTIONS} --disable-programs --enable-cross-compile --target-os=win32 --arch=${VCPKG_TARGET_ARCHITECTURE}")
+    set(OPTIONS "${OPTIONS} --extra-cflags=-DWINAPI_FAMILY=WINAPI_FAMILY_APP --extra-cflags=-D_WIN32_WINNT=0x0A00")
+
+    if (VCPKG_TARGET_ARCHITECTURE STREQUAL "arm")
+        set(UWP_PLATFORM  "arm")
+        vcpkg_find_acquire_program(GASPREPROCESSOR)
+        foreach(GAS_PATH ${GASPREPROCESSOR})
+            get_filename_component(GAS_ITEM_PATH ${GAS_PATH} DIRECTORY)
+            set(ENV{PATH} "$ENV{PATH};${GAS_ITEM_PATH}")
+        endforeach(GAS_PATH)
+
+        ## Get Perl and GCC for MSYS2
+        execute_process(
+            COMMAND ${BASH} --noprofile --norc -c "PATH=/usr/bin:\$PATH;pacman -Sy --noconfirm --needed perl gcc"
+        )
+
+    elseif (VCPKG_TARGET_ARCHITECTURE STREQUAL "x64")
+        set(UWP_PLATFORM  "x64")
+    elseif (VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
+        set(UWP_PLATFORM  "Win32")
+    else ()
+        message(FATAL_ERROR "Unsupported architecture")
+    endif()
+endif()
+
 set(OPTIONS_DEBUG "") # Note: --disable-optimizations can't be used due to http://ffmpeg.org/pipermail/libav-user/2013-March/003945.html
 
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
     set(OPTIONS "${OPTIONS} --disable-static --enable-shared")
+    if (UWP)
+        set(OPTIONS "${OPTIONS} --extra-ldflags=-APPCONTAINER --extra-ldflags=WindowsApp.lib")
+    endif()
 endif()
 
 if(VCPKG_CRT_LINKAGE STREQUAL "dynamic")
-    set(OPTIONS_DEBUG "${OPTIONS_DEBUG} --extra-cflags=-MDd --extra-cxxflags=-MDd --extra-ldflags=-NODEFAULTLIB:libcmt")
+    set(OPTIONS_DEBUG "${OPTIONS_DEBUG} --extra-cflags=-MDd --extra-cxxflags=-MDd")
+    if (NOT UWP)
+        set(OPTIONS_DEBUG "${OPTIONS_DEBUG} --extra-ldflags=-NODEFAULTLIB:libcmt")
+    endif()
+    set(OPTIONS "${OPTIONS} --extra-cflags=-MD --extra-cxxflags=-MD")
 else()
-    set(OPTIONS_DEBUG "${OPTIONS_DEBUG} --extra-cflags=-MTd --extra-cxxflags=-MTd --extra-ldflags=-NODEFAULTLIB:libcmt")
+    set(OPTIONS_DEBUG "${OPTIONS_DEBUG} --extra-cflags=-MTd --extra-cxxflags=-MTd")
+    if (NOT UWP)
+        set(OPTIONS_DEBUG "${OPTIONS_DEBUG} --extra-ldflags=-NODEFAULTLIB:libcmt")
+    endif()
+    set(OPTIONS "${OPTIONS} --extra-cflags=-MT --extra-cxxflags=-MT")
 endif()
 
 message(STATUS "Building ${_csc_PROJECT_PATH} for Release")

scripts/cmake/vcpkg_acquire_msys.cmake

@@ -84,6 +84,10 @@ function(vcpkg_acquire_msys PATH_TO_ROOT_OUT)
       COMMAND ${PATH_TO_ROOT}/usr/bin/bash.exe --noprofile --norc -c "PATH=/usr/bin:\$PATH;pacman-key --init;pacman-key --populate"
       WORKING_DIRECTORY ${TOOLPATH}
     )
+    execute_process(
+      COMMAND ${PATH_TO_ROOT}/usr/bin/bash.exe --noprofile --norc -c "PATH=/usr/bin:\$PATH;pacman -Syu --noconfirm"
+      WORKING_DIRECTORY ${TOOLPATH}
+    )
     file(WRITE "${TOOLPATH}/${STAMP}" "0")
     message(STATUS "Acquiring MSYS2... OK")
   endif()

scripts/cmake/vcpkg_find_acquire_program.cmake

@@ -16,6 +16,7 @@
 ## - 7Z
 ## - BISON
 ## - FLEX
+## - GASPREPROCESSOR
 ## - PERL
 ## - PYTHON2
 ## - PYTHON3
@@ -142,6 +143,15 @@ function(vcpkg_find_acquire_program VAR)
     set(URL "https://sourceforge.net/projects/gnuwin32/files/gperf/3.0.1/gperf-3.0.1-bin.zip/download")
     set(ARCHIVE "gperf-3.0.1-bin.zip")
     set(HASH 3f2d3418304390ecd729b85f65240a9e4d204b218345f82ea466ca3d7467789f43d0d2129fcffc18eaad3513f49963e79775b10cc223979540fa2e502fe7d4d9)
+  elseif(VAR MATCHES "GASPREPROCESSOR")
+    set(NOEXTRACT true)
+    set(PROGNAME gas-preprocessor)
+    set(REQUIRED_INTERPRETER PERL)
+    set(SCRIPTNAME "gas-preprocessor.pl")
+    set(PATHS ${DOWNLOADS}/tools/gas-preprocessor)
+    set(URL "https://raw.githubusercontent.com/FFmpeg/gas-preprocessor/36bacb4cba27003c572e5bf7a9c4dfe3c9a8d40d/gas-preprocessor.pl")
+    set(ARCHIVE "gas-preprocessor.pl")
+    set(HASH a25caadccd1457a0fd2abb5a0da9aca1713b2c351d76daf87a4141e52021f51aa09e95a62942c6f0764f79cc1fa65bf71584955b09e62ee7da067b5c82baf6b3)
   else()
     message(FATAL "unknown tool ${VAR} -- unable to acquire.")
   endif()
@@ -151,8 +161,8 @@ function(vcpkg_find_acquire_program VAR)
       find_program(${VAR} ${PROGNAME} PATHS ${PATHS})
     else()
       vcpkg_find_acquire_program(${REQUIRED_INTERPRETER})
-      find_file(SCIRPT ${SCRIPTNAME} PATHS ${PATHS})
-      set(${VAR} ${${REQUIRED_INTERPRETER}} ${SCIRPT})
+      find_file(SCRIPT ${SCRIPTNAME} PATHS ${PATHS})
+      set(${VAR} ${${REQUIRED_INTERPRETER}} ${SCRIPT})
     endif()
   endmacro()