Emulation/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch.git synced 2025-04-02 10:51:52 -04:00
Code Issues Projects Releases Packages Wiki Activity

(RJPEG) Use features_cpu

Browse source
This commit is contained in:
twinaphex 2016-05-10 20:36:05 +02:00
parent 9aed52ac65
commit eec4218ebb
1 changed files with 9 additions and 40 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

49
libretro-common/formats/jpeg/rjpeg.c
View file

@ -11,6 +11,7 @@
#include <retro_inline.h>
#include <boolean.h>
#include <formats/image.h>
#include <features/features_cpu.h>
enum
{
@ -88,51 +89,19 @@ typedef struct
#include <emmintrin.h>
#ifdef _MSC_VER
#if _MSC_VER >= 1400 /* not VC6 */
#include <intrin.h> /* __cpuid */
static int rjpeg__cpuid3(void)
{
int info[4];
__cpuid(info,1);
return info[3];
}
#else
static int rjpeg__cpuid3(void)
{
int res;
__asm {
mov eax,1
cpuid
mov res,edx
}
return res;
}
#endif
#define RJPEG_SIMD_ALIGN(type, name) __declspec(align(16)) type name
static int rjpeg__sse2_available(void)
{
int info3 = rjpeg__cpuid3();
return ((info3 >> 26) & 1) != 0;
}
#else /* assume GCC-style if not VC++ */
#define RJPEG_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
static int rjpeg__sse2_available(void)
{
#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 /* GCC 4.8 or later */
/* GCC 4.8+ has a nice way to do this */
return __builtin_cpu_supports("sse2");
#else
/* portable way to do this, preferably without using GCC inline ASM?
* just bail for now. */
#define RJPEG_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
#endif
static int rjpeg__sse2_available(void)
{
uint64_t mask = cpu_features_get();
if (mask & RETRO_SIMD_SSE2)
return 1;
return 0;
#endif
}
#endif
#endif
/* ARM NEON */
#if defined(RJPEG_NO_SIMD) && defined(RJPEG_NEON)