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|
macro(simd_fail message)
if(REQUIRE_SIMD)
message(FATAL_ERROR "${message}.")
else()
message(WARNING "${message}. Performance will suffer.")
set(WITH_SIMD 0 PARENT_SCOPE)
endif()
endmacro()
###############################################################################
# x86[-64] (NASM)
###############################################################################
if(CPU_TYPE STREQUAL "x86_64" OR CPU_TYPE STREQUAL "i386")
set(CMAKE_ASM_NASM_FLAGS_DEBUG_INIT "-g")
set(CMAKE_ASM_NASM_FLAGS_RELWITHDEBINFO_INIT "-g")
# Allow the location of the NASM executable to be specified using the ASM_NASM
# environment variable. This should happen automatically, but unfortunately
# enable_language(ASM_NASM) doesn't parse the ASM_NASM environment variable
# until after CMAKE_ASM_NASM_COMPILER has been populated with the results of
# searching for NASM or YASM in the PATH.
if(NOT DEFINED CMAKE_ASM_NASM_COMPILER AND DEFINED ENV{ASM_NASM})
set(CMAKE_ASM_NASM_COMPILER $ENV{ASM_NASM})
endif()
if(CPU_TYPE STREQUAL "x86_64")
if(CYGWIN)
set(CMAKE_ASM_NASM_OBJECT_FORMAT win64)
endif()
elseif(CPU_TYPE STREQUAL "i386")
if(BORLAND)
set(CMAKE_ASM_NASM_OBJECT_FORMAT obj)
elseif(CYGWIN)
set(CMAKE_ASM_NASM_OBJECT_FORMAT win32)
endif()
endif()
enable_language(ASM_NASM)
message(STATUS "CMAKE_ASM_NASM_COMPILER = ${CMAKE_ASM_NASM_COMPILER}")
if(CMAKE_ASM_NASM_OBJECT_FORMAT MATCHES "macho*")
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DMACHO")
elseif(CMAKE_ASM_NASM_OBJECT_FORMAT MATCHES "elf*")
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DELF")
set(CMAKE_ASM_NASM_DEBUG_FORMAT "dwarf2")
endif()
if(CPU_TYPE STREQUAL "x86_64")
if(WIN32 OR CYGWIN)
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DWIN64")
endif()
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -D__x86_64__")
elseif(CPU_TYPE STREQUAL "i386")
if(BORLAND)
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DOBJ32")
elseif(WIN32 OR CYGWIN)
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DWIN32")
endif()
endif()
message(STATUS "CMAKE_ASM_NASM_OBJECT_FORMAT = ${CMAKE_ASM_NASM_OBJECT_FORMAT}")
if(NOT CMAKE_ASM_NASM_OBJECT_FORMAT)
simd_fail("SIMD extensions disabled: could not determine NASM object format")
return()
endif()
get_filename_component(CMAKE_ASM_NASM_COMPILER_TYPE
"${CMAKE_ASM_NASM_COMPILER}" NAME_WE)
if(CMAKE_ASM_NASM_COMPILER_TYPE MATCHES "yasm")
foreach(var CMAKE_ASM_NASM_FLAGS_DEBUG CMAKE_ASM_NASM_FLAGS_RELWITHDEBINFO)
if(${var} STREQUAL "-g")
if(CMAKE_ASM_NASM_DEBUG_FORMAT)
set_property(CACHE ${var} PROPERTY VALUE "-g ${CMAKE_ASM_NASM_DEBUG_FORMAT}")
else()
set_property(CACHE ${var} PROPERTY VALUE "")
endif()
endif()
endforeach()
endif()
if(NOT WIN32 AND (CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED))
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -DPIC")
endif()
string(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE_UC)
set(EFFECTIVE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} ${CMAKE_ASM_NASM_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
message(STATUS "CMAKE_ASM_NASM_FLAGS = ${EFFECTIVE_ASM_NASM_FLAGS}")
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -I\"${CMAKE_CURRENT_SOURCE_DIR}/nasm/\" -I\"${CMAKE_CURRENT_SOURCE_DIR}/${CPU_TYPE}/\"")
set(GREP grep)
if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
set(GREP ggrep)
endif()
add_custom_target(jsimdcfg COMMAND
${CMAKE_C_COMPILER} -E -I${CMAKE_BINARY_DIR} -I${CMAKE_CURRENT_BINARY_DIR}
-I${CMAKE_CURRENT_SOURCE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/nasm/jsimdcfg.inc.h |
${GREP} -E '^[\;%]|^\ %' | sed 's%_cpp_protection_%%' |
sed 's@% define@%define@g' >${CMAKE_CURRENT_SOURCE_DIR}/nasm/jsimdcfg.inc)
if(CPU_TYPE STREQUAL "x86_64")
set(SIMD_SOURCES x86_64/jsimdcpu.asm x86_64/jfdctflt-sse.asm
x86_64/jccolor-sse2.asm x86_64/jcgray-sse2.asm x86_64/jchuff-sse2.asm
x86_64/jcphuff-sse2.asm x86_64/jcsample-sse2.asm x86_64/jdcolor-sse2.asm
x86_64/jdmerge-sse2.asm x86_64/jdsample-sse2.asm x86_64/jfdctfst-sse2.asm
x86_64/jfdctint-sse2.asm x86_64/jidctflt-sse2.asm x86_64/jidctfst-sse2.asm
x86_64/jidctint-sse2.asm x86_64/jidctred-sse2.asm x86_64/jquantf-sse2.asm
x86_64/jquanti-sse2.asm
x86_64/jccolor-avx2.asm x86_64/jcgray-avx2.asm x86_64/jcsample-avx2.asm
x86_64/jdcolor-avx2.asm x86_64/jdmerge-avx2.asm x86_64/jdsample-avx2.asm
x86_64/jfdctint-avx2.asm x86_64/jidctint-avx2.asm x86_64/jquanti-avx2.asm)
else()
set(SIMD_SOURCES i386/jsimdcpu.asm i386/jfdctflt-3dn.asm
i386/jidctflt-3dn.asm i386/jquant-3dn.asm
i386/jccolor-mmx.asm i386/jcgray-mmx.asm i386/jcsample-mmx.asm
i386/jdcolor-mmx.asm i386/jdmerge-mmx.asm i386/jdsample-mmx.asm
i386/jfdctfst-mmx.asm i386/jfdctint-mmx.asm i386/jidctfst-mmx.asm
i386/jidctint-mmx.asm i386/jidctred-mmx.asm i386/jquant-mmx.asm
i386/jfdctflt-sse.asm i386/jidctflt-sse.asm i386/jquant-sse.asm
i386/jccolor-sse2.asm i386/jcgray-sse2.asm i386/jchuff-sse2.asm
i386/jcphuff-sse2.asm i386/jcsample-sse2.asm i386/jdcolor-sse2.asm
i386/jdmerge-sse2.asm i386/jdsample-sse2.asm i386/jfdctfst-sse2.asm
i386/jfdctint-sse2.asm i386/jidctflt-sse2.asm i386/jidctfst-sse2.asm
i386/jidctint-sse2.asm i386/jidctred-sse2.asm i386/jquantf-sse2.asm
i386/jquanti-sse2.asm
i386/jccolor-avx2.asm i386/jcgray-avx2.asm i386/jcsample-avx2.asm
i386/jdcolor-avx2.asm i386/jdmerge-avx2.asm i386/jdsample-avx2.asm
i386/jfdctint-avx2.asm i386/jidctint-avx2.asm i386/jquanti-avx2.asm)
endif()
if(MSVC_IDE)
set(OBJDIR "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}")
string(REGEX REPLACE " " ";" CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS}")
endif()
file(GLOB INC_FILES nasm/*.inc)
foreach(file ${SIMD_SOURCES})
set(OBJECT_DEPENDS "")
if(${file} MATCHES jccolor)
string(REGEX REPLACE "jccolor" "jccolext" DEPFILE ${file})
set(OBJECT_DEPENDS ${OBJECT_DEPENDS}
${CMAKE_CURRENT_SOURCE_DIR}/${DEPFILE})
endif()
if(${file} MATCHES jcgray)
string(REGEX REPLACE "jcgray" "jcgryext" DEPFILE ${file})
set(OBJECT_DEPENDS ${OBJECT_DEPENDS}
${CMAKE_CURRENT_SOURCE_DIR}/${DEPFILE})
endif()
if(${file} MATCHES jdcolor)
string(REGEX REPLACE "jdcolor" "jdcolext" DEPFILE ${file})
set(OBJECT_DEPENDS ${OBJECT_DEPENDS}
${CMAKE_CURRENT_SOURCE_DIR}/${DEPFILE})
endif()
if(${file} MATCHES jdmerge)
string(REGEX REPLACE "jdmerge" "jdmrgext" DEPFILE ${file})
set(OBJECT_DEPENDS ${OBJECT_DEPENDS}
${CMAKE_CURRENT_SOURCE_DIR}/${DEPFILE})
endif()
set(OBJECT_DEPENDS ${OBJECT_DEPENDS} ${INC_FILES})
if(MSVC_IDE)
# The CMake Visual Studio generators do not work properly with the ASM_NASM
# language, so we have to go rogue here and use a custom command like we
# did in prior versions of libjpeg-turbo. (This is why we can't have nice
# things.)
string(REGEX REPLACE "${CPU_TYPE}/" "" filename ${file})
set(SIMD_OBJ ${OBJDIR}/${filename}.obj)
add_custom_command(OUTPUT ${SIMD_OBJ} DEPENDS ${file} ${OBJECT_DEPENDS}
COMMAND ${CMAKE_ASM_NASM_COMPILER} -f${CMAKE_ASM_NASM_OBJECT_FORMAT}
${CMAKE_ASM_NASM_FLAGS} ${CMAKE_CURRENT_SOURCE_DIR}/${file}
-o${SIMD_OBJ})
set(SIMD_OBJS ${SIMD_OBJS} ${SIMD_OBJ})
else()
set_source_files_properties(${file} PROPERTIES OBJECT_DEPENDS
"${OBJECT_DEPENDS}")
endif()
endforeach()
if(MSVC_IDE)
set(SIMD_OBJS ${SIMD_OBJS} PARENT_SCOPE)
add_library(simd OBJECT ${CPU_TYPE}/jsimd.c)
add_custom_target(simd-objs DEPENDS ${SIMD_OBJS})
add_dependencies(simd simd-objs)
else()
add_library(simd OBJECT ${SIMD_SOURCES} ${CPU_TYPE}/jsimd.c)
endif()
if(NOT WIN32 AND (CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED))
set_target_properties(simd PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
###############################################################################
# ARM (GAS)
###############################################################################
elseif(CPU_TYPE STREQUAL "arm64" OR CPU_TYPE STREQUAL "arm")
enable_language(ASM)
set(CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS} ${CMAKE_ASM_FLAGS}")
string(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE_UC)
set(EFFECTIVE_ASM_FLAGS "${CMAKE_ASM_FLAGS} ${CMAKE_ASM_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
message(STATUS "CMAKE_ASM_FLAGS = ${EFFECTIVE_ASM_FLAGS}")
# Test whether we need gas-preprocessor.pl
if(CPU_TYPE STREQUAL "arm")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/gastest.S "
.text
.fpu neon
.arch armv7a
.object_arch armv4
.arm
pld [r0]
vmovn.u16 d0, q0")
else()
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/gastest.S "
.text
MYVAR .req x0
movi v0.16b, #100
mov MYVAR, #100
.unreq MYVAR")
endif()
separate_arguments(CMAKE_ASM_FLAGS_SEP UNIX_COMMAND "${CMAKE_ASM_FLAGS}")
execute_process(COMMAND ${CMAKE_ASM_COMPILER} ${CMAKE_ASM_FLAGS_SEP}
-x assembler-with-cpp -c ${CMAKE_CURRENT_BINARY_DIR}/gastest.S
RESULT_VARIABLE RESULT OUTPUT_VARIABLE OUTPUT ERROR_VARIABLE ERROR)
if(NOT RESULT EQUAL 0)
message(STATUS "GAS appears to be broken. Trying gas-preprocessor.pl ...")
execute_process(COMMAND gas-preprocessor.pl ${CMAKE_ASM_COMPILER}
${CMAKE_ASM_FLAGS_SEP} -x assembler-with-cpp -c
${CMAKE_CURRENT_BINARY_DIR}/gastest.S
RESULT_VARIABLE RESULT OUTPUT_VARIABLE OUTPUT ERROR_VARIABLE ERROR)
if(NOT RESULT EQUAL 0)
simd_fail("SIMD extensions disabled: GAS is not working properly")
return()
else()
message(STATUS "Using gas-preprocessor.pl")
configure_file(gas-preprocessor.in gas-preprocessor @ONLY)
set(CMAKE_ASM_COMPILER ${CMAKE_CURRENT_BINARY_DIR}/gas-preprocessor)
endif()
else()
message(STATUS "GAS is working properly")
endif()
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/gastest.S)
add_library(simd OBJECT ${CPU_TYPE}/jsimd_neon.S ${CPU_TYPE}/jsimd.c)
if(CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED)
set_target_properties(simd PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
###############################################################################
# MIPS (GAS)
###############################################################################
elseif(CPU_TYPE STREQUAL "mips" OR CPU_TYPE STREQUAL "mipsel")
enable_language(ASM)
string(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE_UC)
set(EFFECTIVE_ASM_FLAGS "${CMAKE_ASM_FLAGS} ${CMAKE_ASM_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
message(STATUS "CMAKE_ASM_FLAGS = ${EFFECTIVE_ASM_FLAGS}")
set(CMAKE_REQUIRED_FLAGS -mdspr2)
check_c_source_compiles("
#if !(defined(__mips__) && __mips_isa_rev >= 2)
#error MIPS DSPr2 is currently only available on MIPS32r2 platforms.
#endif
int main(void) {
int c = 0, a = 0, b = 0;
__asm__ __volatile__ (
\"precr.qb.ph %[c], %[a], %[b]\"
: [c] \"=r\" (c)
: [a] \"r\" (a), [b] \"r\" (b)
);
return c;
}" HAVE_DSPR2)
unset(CMAKE_REQUIRED_FLAGS)
if(NOT HAVE_DSPR2)
simd_fail("SIMD extensions not available for this CPU")
return()
endif()
add_library(simd OBJECT mips/jsimd_dspr2.S mips/jsimd.c)
if(CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED)
set_target_properties(simd PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
###############################################################################
# Loongson (Intrinsics)
###############################################################################
elseif(CPU_TYPE STREQUAL "loongson")
set(SIMD_SOURCES loongson/jccolor-mmi.c loongson/jcsample-mmi.c
loongson/jdcolor-mmi.c loongson/jdsample-mmi.c loongson/jfdctint-mmi.c
loongson/jidctint-mmi.c loongson/jquanti-mmi.c)
if(CMAKE_COMPILER_IS_GNUCC)
foreach(file ${SIMD_SOURCES})
set_property(SOURCE ${file} APPEND_STRING PROPERTY COMPILE_FLAGS
" -fno-strict-aliasing")
endforeach()
endif()
add_library(simd OBJECT ${SIMD_SOURCES} loongson/jsimd.c)
if(CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED)
set_target_properties(simd PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
###############################################################################
# PowerPC (Intrinsics)
###############################################################################
elseif(CPU_TYPE STREQUAL "powerpc")
set(CMAKE_REQUIRED_FLAGS -maltivec)
check_c_source_compiles("
#include <altivec.h>
int main(void) {
__vector int vi = { 0, 0, 0, 0 };
int i[4];
vec_st(vi, 0, i);
return i[0];
}" HAVE_ALTIVEC)
unset(CMAKE_REQUIRED_FLAGS)
if(NOT HAVE_ALTIVEC)
simd_fail("SIMD extensions not available for this CPU (PowerPC SPE)")
return()
endif()
set(SIMD_SOURCES powerpc/jccolor-altivec.c powerpc/jcgray-altivec.c
powerpc/jcsample-altivec.c powerpc/jdcolor-altivec.c
powerpc/jdmerge-altivec.c powerpc/jdsample-altivec.c
powerpc/jfdctfst-altivec.c powerpc/jfdctint-altivec.c
powerpc/jidctfst-altivec.c powerpc/jidctint-altivec.c
powerpc/jquanti-altivec.c)
set_source_files_properties(${SIMD_SOURCES} PROPERTIES
COMPILE_FLAGS -maltivec)
add_library(simd OBJECT ${SIMD_SOURCES} powerpc/jsimd.c)
if(CMAKE_POSITION_INDEPENDENT_CODE OR ENABLE_SHARED)
set_target_properties(simd PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
###############################################################################
# None
###############################################################################
else()
simd_fail("SIMD extensions not available for this CPU (${CMAKE_SYSTEM_PROCESSOR})")
endif() # CPU_TYPE
|
