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fixing alignment problems -> SSE2 support enabled again in libavcodec (from ffdshow / milan_cutka)

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Originally committed as revision 2990 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-04-09 16:32:49 +00:00
parent 1c0e205fab
commit 19f82bc824
1 changed files with 17 additions and 4 deletions
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21
libavcodec/i386/fdct_mmx.c
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@ -50,7 +50,14 @@ static const long long fdct_one_corr ATTR_ALIGN(8) = 0x0001000100010001LL;
static const long fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW };
static const long fdct_r_row_sse2[4] ATTR_ALIGN(16) = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
struct
{
const long fdct_r_row_sse2[4] ATTR_ALIGN(16);
} fdct_r_row_sse2 ATTR_ALIGN(16)=
{{
RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW
}};
//static const long fdct_r_row_sse2[4] ATTR_ALIGN(16) = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff table
16384, 16384, -8867, -21407,
@ -126,7 +133,12 @@ static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff
6270, 26722, 6270, -17855,
};
static const int16_t tab_frw_01234567_sse2[] ATTR_ALIGN(16) = { // forward_dct coeff table
struct
{
const int16_t tab_frw_01234567_sse2[256] ATTR_ALIGN(16);
} tab_frw_01234567_sse2 ATTR_ALIGN(16) =
{{
//static const int16_t tab_frw_01234567_sse2[] ATTR_ALIGN(16) = { // forward_dct coeff table
#define TABLE_SSE2 C4, C4, C1, C3, -C6, -C2, -C1, -C5, \
C4, C4, C5, C7, C2, C6, C3, -C7, \
-C4, C4, C7, C3, C6, -C2, C7, -C5, \
@ -252,7 +264,8 @@ TABLE_SSE2
#define C6 12299
#define C7 6270
TABLE_SSE2
};
}};
static always_inline void fdct_col(const int16_t *in, int16_t *out, int offset)
{
@ -392,7 +405,7 @@ static always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
"FDCT_ROW_SSE2_H2 80 192 \n\t"
"FDCT_ROW_SSE2 80 \n\t"
:
: "r" (in), "r" (tab_frw_01234567_sse2), "r" (fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
: "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2), "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
);
}