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gcc2.95.x has no support for mvi instructions

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10489 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2003-07-27 22:55:25 +00:00
parent 1c7f242c96
commit b4547c12fc
4 changed files with 22 additions and 1 deletions
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12
configure vendored
View File

@ -919,6 +919,15 @@ EOF
fi
_mcpu="-mcpu=$proc"
echores "$proc"
echocheck "MVI instruction support in GCC"
if test "$_cc_major" -ge "3"; then
_def_gcc_mvi_support="#define CAN_COMPILE_ALPHA_MVI 1"
echores "yes"
else
_def_gcc_mvi_support="#undef CAN_COMPILE_ALPHA_MVI"
echores "no"
fi
;;
mips)
@ -5788,6 +5797,9 @@ $_def_arch
#define ARCH_ARM 1
#endif
/* only gcc3 can compile mvi instructions */
$_def_gcc_mvi_support
/* Define this for Cygwin build for win32 */
$_def_confwin32

4
libmpeg2/cpu_accel.c
View File

@ -154,6 +154,7 @@ static inline uint32_t arch_accel (void)
#ifdef ARCH_ALPHA
static inline uint32_t arch_accel (void)
{
#ifdef CAN_COMPILE_ALPHA_MVI
uint64_t no_mvi;
asm volatile ("amask %1, %0"
@ -161,6 +162,9 @@ static inline uint32_t arch_accel (void)
: "rI" (256)); /* AMASK_MVI */
return no_mvi ? MPEG2_ACCEL_ALPHA : (MPEG2_ACCEL_ALPHA |
MPEG2_ACCEL_ALPHA_MVI);
#else
return MPEG2_ACCEL_ALPHA;
#endif
}
#endif /* ARCH_ALPHA */
#endif

5
libmpeg2/idct.c
View File

@ -250,11 +250,14 @@ void mpeg2_idct_init (uint32_t accel)
#endif
#endif
#ifdef ARCH_ALPHA
#ifdef CAN_COMPILE_ALPHA_MVI
if (accel & MPEG2_ACCEL_ALPHA_MVI) {
mpeg2_idct_copy = mpeg2_idct_copy_mvi;
mpeg2_idct_add = mpeg2_idct_add_mvi;
mpeg2_idct_alpha_init (0);
} else if (accel & MPEG2_ACCEL_ALPHA) {
} else
#endif
if (accel & MPEG2_ACCEL_ALPHA) {
mpeg2_idct_copy = mpeg2_idct_copy_alpha;
mpeg2_idct_add = mpeg2_idct_add_alpha;
mpeg2_idct_alpha_init (1);

2
libmpeg2/idct_alpha.c
View File

@ -155,6 +155,7 @@ static inline void idct_col (int16_t * const block)
block[8*7] = (a0 - b0) >> 17;
}
#ifdef CAN_COMPILE_ALPHA_MVI
void mpeg2_idct_copy_mvi (int16_t * block, uint8_t * dest, const int stride)
{
uint64_t clampmask;
@ -287,6 +288,7 @@ void mpeg2_idct_add_mvi (const int last, int16_t * block,
stq (p7, dest + 7 * stride);
}
}
#endif
void mpeg2_idct_copy_alpha (int16_t * block, uint8_t * dest, const int stride)
{