Merge pull request #225 from HecaiYuan/master

loongarch: add loongarch support

Author: adamjw24

CMakeLists.txt

@@ -31,9 +31,14 @@ if( VVDEC_TARGET_ARCH STREQUAL "ARM" )
   set( VVDEC_ARM_SIMD_DEFAULT TRUE )
 endif()
 
+if( VVDEC_TARGET_ARCH MATCHES "LOONGARCH64" )
+  set( VVDEC_LOONGARCH64_SIMD_DEFAULT TRUE )
+endif()
+
 # we enable x86 intrinsics for all target architectures, because they are implemented through simd-everywhere on non-x86
 set( VVDEC_ENABLE_X86_SIMD   TRUE                      CACHE BOOL "enable x86 intrinsics" )
 set( VVDEC_ENABLE_ARM_SIMD   ${VVDEC_ARM_SIMD_DEFAULT} CACHE BOOL "enable ARM intrinsics" )
+set( VVDEC_ENABLE_LOONGARCH64_LSX_SIMD  ${VVDEC_LOONGARCH64_SIMD_DEFAULT} CACHE BOOL "enable loongarch64 LSX intrinsics" )
 
 set( VVDEC_ENABLE_TRACING    FALSE                     CACHE BOOL "Compile in tracing functionality" )
 
@@ -63,6 +68,17 @@ if( VVDEC_ENABLE_X86_SIMD )
     set_if_compiler_supports_flag( FLAG_mfloat_abi_hard -mfloat-abi=hard  )
     add_compile_options( ${FLAG_mfpu_neon} ${FLAG_mfloat_abi_hard} )
   endif()
+
+  if( VVDEC_TARGET_ARCH STREQUAL "LOONGARCH64" )
+    if( VVDEC_ENABLE_LOONGARCH64_LSX_SIMD )
+      set_if_compiler_supports_flag( FLAG_mlsx -mlsx )
+      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${FLAG_mlsx}")
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${FLAG_mlsx}")
+      message( STATUS "LoongArch64 lsx intrinsics enabled" )
+    else()
+      message( STATUS "LoongArch64 lsx intrinsics disabled" )
+    endif()
+  endif()
 endif()
 
 if( VVDEC_ENABLE_ARM_SIMD )

cmake/modules/vvdecCompilerSupport.cmake

@@ -112,6 +112,8 @@ function( _append_cpu_type_guess output_list input_str )
     list( APPEND ret "X86" )
   elseif( ${input_lower} MATCHES "aarch64\|arm")
     list( APPEND ret "ARM" )
+  elseif( ${input_lower} MATCHES "loongarch64")
+    list( APPEND ret "LOONGARCH64" )
   endif()
 
   set( ${output_list} ${ret} PARENT_SCOPE )

include/vvdec/vvdec.h

@@ -64,6 +64,8 @@ VVDEC_NAMESPACE_BEGIN
 # define VVDEC_ARCH_ARM 1
 #elif defined( __wasm__ ) || defined( __wasm32__ )
 # define VVDEC_ARCH_WASM 1
+#elif defined( __loongarch__ )
+# define VVDEC_ARCH_LOONGARCH 1
 #endif
 
 /* vvdecDecoder:
@@ -149,6 +151,9 @@ typedef enum
 #elif defined( VVDEC_ARCH_WASM )
   VVDEC_SIMD_WASM     = 3,
   VVDEC_SIMD_MAX      = VVDEC_SIMD_WASM
+#elif defined( VVDEC_ARCH_LOONGARCH )
+  VVDEC_SIMD_LSX      = 3,
+  VVDEC_SIMD_MAX      = VVDEC_SIMD_LSX
 #else
   VVDEC_SIMD_SIMDE_ANY= 3,
   VVDEC_SIMD_MAX      = VVDEC_SIMD_SIMDE_ANY

source/App/vvdecapp/CmdLineParser.h

@@ -400,6 +400,8 @@ class CmdLineParser
             case VVDEC_SIMD_NEON:      cll = "NEON";      break;
 #elif defined (VVDEC_ARCH_WASM)
             case VVDEC_SIMD_WASM:      cll = "WASM-SIMD"; break;
+#elif defined (VVDEC_ARCH_LOONGARCH)
+            case VVDEC_SIMD_LSX:       cll = "LSX";       break;
 #else
             case VVDEC_SIMD_SIMDE_ANY: cll = "SIMDE-ANY"; break;
 #endif

source/Lib/CommonLib/CommonDef.h

@@ -61,6 +61,8 @@ POSSIBILITY OF SUCH DAMAGE.
 # define REAL_TARGET_ARM 1
 #elif defined( __wasm__ ) || defined( __wasm32__ )
 # define REAL_TARGET_WASM 1
+#elif defined( __loongarch__ )
+# define REAL_TARGET_LOONGARCH 1
 #endif
 
 #ifdef _WIN32

source/Lib/CommonLib/x86/CommonDefX86.cpp

@@ -270,6 +270,8 @@ std::string read_x86_extension_name()
     return std::string( "NEON/SIMDE(" ) + vext_names[vext] + ")";
 #  elif defined( REAL_TARGET_WASM )
     return std::string( "WASM/Emscripten(" ) + vext_names[vext] + ")";
+#  elif defined( REAL_TARGET_LOONGARCH )
+    return std::string( "LSX/SIMDE(" ) + vext_names[vext] + ")";
 #  else
     return std::string( "SIMDE(" ) + vext_names[vext] + ")" ;
 #  endif

source/Lib/vvdec/vvdecimpl.cpp

@@ -92,7 +92,7 @@ int VVDecImpl::init( const vvdecParams& params, vvdecCreateBufferCallback create
     case VVDEC_SIMD_SSE42 : read_x86_extension_flags( x86_simd::SSE42  ); break;
     case VVDEC_SIMD_AVX   : read_x86_extension_flags( x86_simd::AVX    ); break;
     case VVDEC_SIMD_AVX2  : read_x86_extension_flags( x86_simd::AVX2   ); break;
-#  elif defined( VVDEC_ARCH_ARM ) || defined( VVDEC_ARCH_WASM )
+#  elif defined( VVDEC_ARCH_ARM ) || defined( VVDEC_ARCH_WASM ) || defined( VVDEC_ARCH_LOONGARCH )
     case VVDEC_SIMD_MAX   : read_x86_extension_flags( SIMD_EVERYWHERE_EXTENSION_LEVEL ); break;
 #  endif
     case VVDEC_SIMD_DEFAULT: