C++ (Cpp) _mesa_check_os_sse_support Examples

Example #1

void _mesa_init_all_x86_transform_asm( void )
{
    _mesa_get_x86_features();

#ifdef USE_X86_ASM
    if ( _mesa_x86_cpu_features ) {
        _mesa_init_x86_transform_asm();
    }

#ifdef USE_MMX_ASM
    if ( cpu_has_mmx ) {
        if ( _mesa_getenv( "MESA_NO_MMX" ) == 0 ) {
            _mesa_debug(NULL, "MMX cpu detected.\n");
        } else {
            _mesa_x86_cpu_features &= ~(X86_FEATURE_MMX);
        }
    }
#endif

#ifdef USE_3DNOW_ASM
    if ( cpu_has_3dnow ) {
        if ( _mesa_getenv( "MESA_NO_3DNOW" ) == 0 ) {
            _mesa_debug(NULL, "3DNow! cpu detected.\n");
            _mesa_init_3dnow_transform_asm();
        } else {
            _mesa_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
        }
    }
#endif

#ifdef USE_SSE_ASM
    if ( cpu_has_xmm ) {
        if ( _mesa_getenv( "MESA_NO_SSE" ) == 0 ) {
            _mesa_debug(NULL, "SSE cpu detected.\n");
            if ( _mesa_getenv( "MESA_FORCE_SSE" ) == 0 ) {
                _mesa_check_os_sse_support();
            }
            if ( cpu_has_xmm ) {
                _mesa_init_sse_transform_asm();
            }
        } else {
            _mesa_debug(NULL, "SSE cpu detected, but switched off by user.\n");
            _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
        }
    }
#endif
#endif
}

Example #2

File: common_x86.c Project: austriancoder/mesa-1

/**
 * Initialize the _mesa_x86_cpu_features bitfield.
 * This is a no-op if called more than once.
 */
void
_mesa_get_x86_features(void)
{
   static int called = 0;

   if (called)
      return;

   called = 1;

#ifdef USE_X86_ASM
   _mesa_x86_cpu_features = 0x0;

   if (_mesa_getenv( "MESA_NO_ASM")) {
      return;
   }

   if (!_mesa_x86_has_cpuid()) {
       _mesa_debug(NULL, "CPUID not detected\n");
   }
   else {
       GLuint cpu_features, cpu_features_ecx;
       GLuint cpu_ext_features;
       GLuint cpu_ext_info;
       char cpu_vendor[13];
       GLuint result;

       /* get vendor name */
       _mesa_x86_cpuid(0, &result, (GLuint *)(cpu_vendor + 0), (GLuint *)(cpu_vendor + 8), (GLuint *)(cpu_vendor + 4));
       cpu_vendor[12] = '\0';

       if (detection_debug)
	  _mesa_debug(NULL, "CPU vendor: %s\n", cpu_vendor);

       /* get cpu features */
       cpu_features = _mesa_x86_cpuid_edx(1);
       cpu_features_ecx = _mesa_x86_cpuid_ecx(1);

       if (cpu_features & X86_CPU_FPU)
	   _mesa_x86_cpu_features |= X86_FEATURE_FPU;
       if (cpu_features & X86_CPU_CMOV)
	   _mesa_x86_cpu_features |= X86_FEATURE_CMOV;

#ifdef USE_MMX_ASM
       if (cpu_features & X86_CPU_MMX)
	   _mesa_x86_cpu_features |= X86_FEATURE_MMX;
#endif

#ifdef USE_SSE_ASM
       if (cpu_features & X86_CPU_XMM)
	   _mesa_x86_cpu_features |= X86_FEATURE_XMM;
       if (cpu_features & X86_CPU_XMM2)
	   _mesa_x86_cpu_features |= X86_FEATURE_XMM2;
       if (cpu_features_ecx & X86_CPU_SSE4_1)
	   _mesa_x86_cpu_features |= X86_FEATURE_SSE4_1;
#endif

       /* query extended cpu features */
       if ((cpu_ext_info = _mesa_x86_cpuid_eax(0x80000000)) > 0x80000000) {
	   if (cpu_ext_info >= 0x80000001) {

	       cpu_ext_features = _mesa_x86_cpuid_edx(0x80000001);

	       if (cpu_features & X86_CPU_MMX) {

#ifdef USE_3DNOW_ASM
		   if (cpu_ext_features & X86_CPUEXT_3DNOW)
		       _mesa_x86_cpu_features |= X86_FEATURE_3DNOW;
		   if (cpu_ext_features & X86_CPUEXT_3DNOW_EXT)
		       _mesa_x86_cpu_features |= X86_FEATURE_3DNOWEXT;
#endif

#ifdef USE_MMX_ASM
		   if (cpu_ext_features & X86_CPUEXT_MMX_EXT)
		       _mesa_x86_cpu_features |= X86_FEATURE_MMXEXT;
#endif
	       }
	   }

	   /* query cpu name */
	   if (cpu_ext_info >= 0x80000002) {
	       GLuint ofs;
	       char cpu_name[49];
	       for (ofs = 0; ofs < 3; ofs++)
		   _mesa_x86_cpuid(0x80000002+ofs, (GLuint *)(cpu_name + (16*ofs)+0), (GLuint *)(cpu_name + (16*ofs)+4), (GLuint *)(cpu_name + (16*ofs)+8), (GLuint *)(cpu_name + (16*ofs)+12));
	       cpu_name[48] = '\0'; /* the name should be NULL terminated, but just to be sure */

	       if (detection_debug)
		  _mesa_debug(NULL, "CPU name: %s\n", cpu_name);
	   }
       }

   }

#ifdef USE_MMX_ASM
   if ( cpu_has_mmx ) {
      if ( _mesa_getenv( "MESA_NO_MMX" ) == 0 ) {
	 if (detection_debug)
	    _mesa_debug(NULL, "MMX cpu detected.\n");
      } else {
         _mesa_x86_cpu_features &= ~(X86_FEATURE_MMX);
      }
   }
#endif

#ifdef USE_3DNOW_ASM
   if ( cpu_has_3dnow ) {
      if ( _mesa_getenv( "MESA_NO_3DNOW" ) == 0 ) {
	 if (detection_debug)
	    _mesa_debug(NULL, "3DNow! cpu detected.\n");
      } else {
         _mesa_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
      }
   }
#endif

#ifdef USE_SSE_ASM
   if ( cpu_has_xmm ) {
      if ( _mesa_getenv( "MESA_NO_SSE" ) == 0 ) {
	 if (detection_debug)
	    _mesa_debug(NULL, "SSE cpu detected.\n");
         if ( _mesa_getenv( "MESA_FORCE_SSE" ) == 0 ) {
            _mesa_check_os_sse_support();
         }
      } else {
         _mesa_debug(NULL, "SSE cpu detected, but switched off by user.\n");
         _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
      }
   }
#endif

#elif defined(USE_X86_64_ASM)
   {
      unsigned int uninitialized_var(eax), uninitialized_var(ebx),
                   uninitialized_var(ecx), uninitialized_var(edx);

      /* Always available on x86-64. */
      _mesa_x86_cpu_features |= X86_FEATURE_XMM | X86_FEATURE_XMM2;

      __get_cpuid(1, &eax, &ebx, &ecx, &edx);

      if (ecx & bit_SSE4_1)
         _mesa_x86_cpu_features |= X86_FEATURE_SSE4_1;
   }
#endif /* USE_X86_64_ASM */

   (void) detection_debug;
}