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Provide support for CMake on Android studio 2.2.

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Change-Id: Ib3508c20a220b29d42f963cf154cd9ab5236ed6e
(cherry picked from commit a80e8cfdf2)
This commit is contained in:
Vincent Rabaud 2016-07-08 01:57:02 +02:00 committed by James Zern
parent 004d569086
commit eec5fa3a95
1 changed files with 60 additions and 27 deletions
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81
cmake/cpu.cmake
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@ -1,27 +1,7 @@
## Check for SIMD extensions.
set(WEBP_SIMD_FLAGS "SSE2;SSE41;AVX2")
set(WEBP_SIMD_FILE_EXTENSIONS "_sse2.c;_sse41.c;_avx2.c")
if(MSVC)
# MSVC does not have a SSE4 flag but AVX2 support implies
# SSE4 support.
set(SIMD_ENABLE_FLAGS "/arch:SSE2;/arch:AVX2;/arch:AVX2")
set(SIMD_DISABLE_FLAGS)
else()
set(SIMD_ENABLE_FLAGS "-msse2;-msse4.1;-mavx2")
set(SIMD_DISABLE_FLAGS "-mno-sse2;-mno-sse4.1;-mno-avx2")
endif()
set(WEBP_SIMD_FILES_TO_NOT_INCLUDE)
set(WEBP_SIMD_FILES_TO_INCLUDE)
set(WEBP_SIMD_FLAGS_TO_INCLUDE)
list(LENGTH WEBP_SIMD_FLAGS WEBP_SIMD_FLAGS_LENGTH)
math(EXPR WEBP_SIMD_FLAGS_RANGE "${WEBP_SIMD_FLAGS_LENGTH} - 1")
foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
list(GET WEBP_SIMD_FLAGS ${I_SIMD} WEBP_SIMD_FLAG)
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
function(webp_check_compiler_flag WEBP_SIMD_FLAG)
unset(WEBP_HAVE_FLAG_LOCAL CACHE)
check_c_source_compiles("
#include \"${CMAKE_CURRENT_LIST_DIR}/../src/dsp/dsp.h\"
int main(void) {
@ -30,10 +10,60 @@ foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
#endif
return 0;
}
"
WEBP_HAVE_${WEBP_SIMD_FLAG}
" WEBP_HAVE_FLAG_LOCAL
)
if(WEBP_HAVE_FLAG_LOCAL)
set(WEBP_HAVE_${WEBP_SIMD_FLAG} 1 PARENT_SCOPE)
else()
set(WEBP_HAVE_${WEBP_SIMD_FLAG} 0 PARENT_SCOPE)
endif()
endfunction()
# those are included in the names of WEBP_USE_* in c++ code.
set(WEBP_SIMD_FLAGS "SSE2;SSE41;AVX2;MIPS32;MIPS_DSP_R2;NEON;MSA")
set(WEBP_SIMD_FILE_EXTENSIONS "_sse2.c;_sse41.c;_avx2.c;_mips32.c;_mips_dsp_r2.c;_neon.c;_msa.c")
if(MSVC)
# MSVC does not have a SSE4 flag but AVX2 support implies
# SSE4 support.
set(SIMD_ENABLE_FLAGS "/arch:SSE2;/arch:AVX2;/arch:AVX2;;;;")
set(SIMD_DISABLE_FLAGS)
else()
set(SIMD_ENABLE_FLAGS "-msse2;-msse4.1;-mavx2;-mips32;-mdspr2;-mfpu=neon;-mmsa")
set(SIMD_DISABLE_FLAGS "-mno-sse2;-mno-sse4.1;-mno-avx2;;-mno-dspr2;;-mno-msa")
endif()
set(WEBP_SIMD_FILES_TO_NOT_INCLUDE)
set(WEBP_SIMD_FILES_TO_INCLUDE)
set(WEBP_SIMD_FLAGS_TO_INCLUDE)
if(${ANDROID})
if(${ANDROID_ABI} STREQUAL "armeabi-v7a")
# This is because Android studio uses the configuration
# "-march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16"
# that does not trigger neon optimizations but should
# (as this configuration does not exist anymore).
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=neon ")
endif()
endif()
list(LENGTH WEBP_SIMD_FLAGS WEBP_SIMD_FLAGS_LENGTH)
math(EXPR WEBP_SIMD_FLAGS_RANGE "${WEBP_SIMD_FLAGS_LENGTH} - 1")
foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
list(GET WEBP_SIMD_FLAGS ${I_SIMD} WEBP_SIMD_FLAG)
# First try with no extra flag added as the compiler might have default flags
# (especially on Android).
unset(WEBP_HAVE_${WEBP_SIMD_FLAG} CACHE)
set(CMAKE_REQUIRED_FLAGS)
webp_check_compiler_flag(${WEBP_SIMD_FLAG})
if(NOT WEBP_HAVE_${WEBP_SIMD_FLAG})
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
webp_check_compiler_flag(${WEBP_SIMD_FLAG})
else()
set(SIMD_COMPILE_FLAG " ")
endif()
# Check which files we should include or not.
list(GET WEBP_SIMD_FILE_EXTENSIONS ${I_SIMD} WEBP_SIMD_FILE_EXTENSION)
file(GLOB SIMD_FILES "${CMAKE_CURRENT_LIST_DIR}/../"
@ -54,10 +84,13 @@ foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
if(SIMD_DISABLE_FLAGS)
list(GET SIMD_DISABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
include(CheckCCompilerFlag)
if(SIMD_COMPILE_FLAG)
unset(HAS_COMPILE_FLAG CACHE)
check_c_compiler_flag(${SIMD_COMPILE_FLAG} HAS_COMPILE_FLAG)
if(HAS_COMPILE_FLAG)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SIMD_COMPILE_FLAG}")
endif()
endif()
endif()
endif()
endforeach()