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gallium/rtasm: properly detect SSE and SSE2

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This should fix crashes on ancient processors.
This commit is contained in:
Marek Olšák 2012-02-24 19:29:48 +01:00
parent e6fa2d89e1
commit 74d303521e
1 changed files with 27 additions and 27 deletions
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54
src/gallium/auxiliary/rtasm/rtasm_cpu.c
View file

@ -25,43 +25,43 @@
*
**************************************************************************/
#include "util/u_debug.h"
#include "pipe/p_config.h"
#include "rtasm_cpu.h"
#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
static boolean rtasm_sse_enabled(void)
#include "util/u_debug.h"
#include "util/u_cpu_detect.h"
DEBUG_GET_ONCE_BOOL_OPTION(nosse, "GALLIUM_NOSSE", FALSE);
static struct util_cpu_caps *get_cpu_caps(void)
{
static boolean firsttime = 1;
static boolean enabled;
/* This gets called quite often at the moment:
*/
if (firsttime) {
enabled = !debug_get_bool_option("GALLIUM_NOSSE", FALSE);
firsttime = FALSE;
}
return enabled;
util_cpu_detect();
return &util_cpu_caps;
}
#endif
int rtasm_cpu_has_sse(void)
{
/* FIXME: actually detect this at run-time */
#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
return rtasm_sse_enabled();
#else
return 0;
#endif
return !debug_get_option_nosse() && get_cpu_caps()->has_sse;
}
int rtasm_cpu_has_sse2(void)
{
/* FIXME: actually detect this at run-time */
#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
return rtasm_sse_enabled();
#else
return 0;
#endif
return !debug_get_option_nosse() && get_cpu_caps()->has_sse2;
}
#else
int rtasm_cpu_has_sse(void)
{
return 0;
}
int rtasm_cpu_has_sse2(void)
{
return 0;
}
#endif