axmol/thirdparty/astc/CMakeLists.txt

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CMake
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set(lib_name astc)
set(target_name ${lib_name})
project(${lib_name})
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include(CheckIncludeFile)
include(CheckCCompilerFlag)
include(CheckCSourceCompiles)
include(CheckCXXSourceCompiles)
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set(${target_name}_src
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astcenc_averages_and_directions.cpp
astcenc_block_sizes.cpp
astcenc_color_quantize.cpp
astcenc_color_unquantize.cpp
astcenc_compress_symbolic.cpp
astcenc_compute_variance.cpp
astcenc_decompress_symbolic.cpp
astcenc_diagnostic_trace.cpp
astcenc_entry.cpp
astcenc_find_best_partitioning.cpp
astcenc_ideal_endpoints_and_weights.cpp
astcenc_image.cpp
astcenc_integer_sequence.cpp
astcenc_mathlib.cpp
astcenc_mathlib_softfloat.cpp
astcenc_partition_tables.cpp
astcenc_percentile_tables.cpp
astcenc_pick_best_endpoint_format.cpp
astcenc_platform_isa_detection.cpp
astcenc_quantization.cpp
astcenc_symbolic_physical.cpp
astcenc_weight_align.cpp
astcenc_weight_quant_xfer_tables.cpp
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)
add_library(${target_name} STATIC
${${target_name}_src}
)
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target_compile_definitions(${target_name}
PRIVATE ASTCENC_DECOMPRESS_ONLY)
if (NOT DEFINED ISA_SIMD)
### check -msse2 flag
set(ASTC_SSE2_SWITCH "")
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set(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
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if(MSVC)
set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} /WX")
check_c_compiler_flag("/arch:SSE2" ASTC_HAVE_MSSE2_SWITCH)
else()
set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Werror")
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check_c_compiler_flag(-msse2 ASTC_HAVE_MSSE2_SWITCH)
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endif()
### end check -msse2 flag
### check SSE4.1
check_include_file(smmintrin.h ASTC_HAVE_SMMINTRIN_H)
if(ASTC_HAVE_SMMINTRIN_H)
if(APPLE)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -mpopcnt")
endif()
check_c_source_compiles("#include <immintrin.h>
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#include <stdint.h>
int main()
{
uint64_t v = 0;
return (int)_mm_popcnt_u64(v);
}" ASTC_HAVE_SSE4_INTRINSICS)
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endif()
### check neon
check_include_file(arm_neon.h ASTC_HAVE_ARM_NEON_H)
if(ASTC_HAVE_ARM_NEON_H)
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set(CMAKE_REQUIRED_FLAGS "-std=c++11")
check_cxx_source_compiles("#include <arm_neon.h>
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int main()
{
int32x4_t ret4 = vdupq_n_s32(0);
uint32x4_t v{};
float16x4_t f16 = vcvt_f16_f32(v);
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return vgetq_lane_s32(ret4, 0);
}" ASTC_HAVE_NEON_INTRINSICS)
endif()
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### restore CMAKE_REQUIRED_FLAGS
set(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
unset(OLD_REQUIRED_FLAGS)
### set ISA_SIMD
if(ASTC_HAVE_MSSE2_SWITCH)
set(ISA_SIMD "sse2")
if(ASTC_HAVE_SSE4_INTRINSICS)
set(ISA_SIMD "sse4.1")
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endif()
elseif(ASTC_HAVE_NEON_INTRINSICS)
set(ISA_SIMD "neon")
else()
set(ISA_SIMD "none")
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endif()
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message(AUTHOR_WARNING "ISA_SIMD=${ISA_SIMD},ASTC_HAVE_MSSE2_SWITCH=${ASTC_HAVE_MSSE2_SWITCH},ASTC_HAVE_SSE4_INTRINSICS=${ASTC_HAVE_SSE4_INTRINSICS},ASTC_HAVE_NEON_INTRINSICS=${ASTC_HAVE_NEON_INTRINSICS}")
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endif()
# Set up configuration for SIMD ISA builds
if(${ISA_SIMD} MATCHES "none")
target_compile_definitions(${target_name}
PUBLIC
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ASTCENC_NEON=0
ASTCENC_SSE=0
ASTCENC_AVX=0
ASTCENC_POPCNT=0
ASTCENC_F16C=0)
elseif(${ISA_SIMD} MATCHES "neon")
target_compile_definitions(${target_name}
PUBLIC
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ASTCENC_NEON=1
ASTCENC_SSE=0
ASTCENC_AVX=0
ASTCENC_POPCNT=0
ASTCENC_F16C=0)
elseif(${ISA_SIMD} MATCHES "sse2")
target_compile_definitions(${target_name}
PUBLIC
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ASTCENC_NEON=0
ASTCENC_SSE=20
ASTCENC_AVX=0
ASTCENC_POPCNT=0
ASTCENC_F16C=0)
elseif(${ISA_SIMD} MATCHES "sse4.1")
target_compile_definitions(${target_name}
PUBLIC
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ASTCENC_NEON=0
ASTCENC_SSE=41
ASTCENC_AVX=0
ASTCENC_POPCNT=1
ASTCENC_F16C=0)
target_compile_options(${target_name}
PRIVATE
$<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-msse4.1 -mpopcnt>)
elseif(${ISA_SIMD} MATCHES "avx2")
target_compile_definitions(${target_name}
PUBLIC
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ASTCENC_NEON=0
ASTCENC_SSE=41
ASTCENC_AVX=2
ASTCENC_POPCNT=1
ASTCENC_F16C=1)
target_compile_options(${target_name}
PRIVATE
$<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-mavx2 -mpopcnt -mf16c>
$<$<CXX_COMPILER_ID:MSVC>:/arch:AVX2>)
endif()
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target_include_directories(${target_name} PUBLIC ..)