loongarch: Add cmake support
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8831df5..9cf62ba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -249,6 +249,35 @@
endif()
endif()
+# Set definitions and sources for LoongArch.
+if(TARGET_ARCH MATCHES "^(loongarch)")
+ include(CheckCCompilerFlag)
+ set(PNG_LOONGARCH_LSX_POSSIBLE_VALUES on off)
+ set(PNG_LOONGARCH_LSX "on"
+ CACHE STRING "Enable LOONGARCH_LSX optimizations: on|off; on is default")
+ set_property(CACHE PNG_LOONGARCH_LSX
+ PROPERTY STRINGS ${PNG_LOONGARCH_LSX_POSSIBLE_VALUES})
+ list(FIND PNG_LOONGARCH_LSX_POSSIBLE_VALUES ${PNG_LOONGARCH_LSX} index)
+ if(index EQUAL -1)
+ message(FATAL_ERROR "PNG_LOONGARCH_LSX must be one of [${PNG_LOONGARCH_LSX_POSSIBLE_VALUES}]")
+ elseif(NOT PNG_LOONGARCH_LSX STREQUAL "off")
+ CHECK_C_COMPILER_FLAG("-mlsx" COMPILER_SUPPORTS_LSX)
+ if(COMPILER_SUPPORTS_LSX)
+ set(libpng_loongarch_sources
+ loongarch/loongarch_lsx_init.c
+ loongarch/filter_lsx_intrinsics.c)
+ set_source_files_properties(${libpng_loongarch_sources}
+ PROPERTIES
+ COMPILE_FLAGS "-mlsx")
+ add_definitions(-DPNG_LOONGARCH_LSX_OPT=1)
+ else()
+ message(FATAL_ERROR "Compiler does not support -mlsx option")
+ endif()
+ else()
+ add_definitions(-DPNG_LOONGARCH_LSX_OPT=0)
+ endif()
+endif()
+
else(PNG_HARDWARE_OPTIMIZATIONS)
# Set definitions and sources for ARM.
@@ -271,6 +300,11 @@
add_definitions(-DPNG_MIPS_MSA_OPT=0)
endif()
+# Set definitions and sources for LoongArch.
+if(TARGET_ARCH MATCHES "^(loongarch)")
+ add_definitions(-DPNG_LOONGARCH_LSX_OPT=0)
+endif()
+
endif(PNG_HARDWARE_OPTIMIZATIONS)
option(ld-version-script "Enable linker version script" ON)
@@ -581,6 +615,7 @@
${libpng_intel_sources}
${libpng_mips_sources}
${libpng_powerpc_sources}
+ ${libpng_loongarch_sources}
)
set(pngtest_sources
pngtest.c
