RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-25 00:32:31 +00:00
Code Issues Projects Releases Wiki Activity

remove unused table entries

Browse Source 
change non portable table access

Originally committed as revision 4574 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-09-10 19:03:37 +00:00
parent ddabdfefa8
commit 9f211bc6d7
1 changed files with 10 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
libavcodec/i386/idct_mmx_xvid.c
View File

@ -72,28 +72,11 @@
//-----------------------------------------------------------------------------
static const int16_t one_corr[4] attribute_used __attribute__ ((aligned(8))) = {
1,1,1,1};
static const int32_t round_inv_row[2] attribute_used __attribute__ ((aligned(8))) = {
RND_INV_ROW, RND_INV_ROW};
static const int16_t round_inv_col[4] attribute_used __attribute__ ((aligned(8))) = {
RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL};
static const int16_t round_inv_corr[4] attribute_used __attribute__ ((aligned(8))) = {
RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR};
static const int32_t round_frw_row[2] attribute_used __attribute__ ((aligned(8))) = {
RND_FRW_ROW, RND_FRW_ROW};
static const int16_t tg_1_16[4] attribute_used __attribute__ ((aligned(8))) = {
13036,13036,13036,13036}; // tg * (2<<16) + 0.5
static const int16_t tg_2_16[4] attribute_used __attribute__ ((aligned(8))) = {
27146,27146,27146,27146}; // tg * (2<<16) + 0.5
static const int16_t tg_3_16[4] attribute_used __attribute__ ((aligned(8))) = {
-21746,-21746,-21746,-21746}; // tg * (2<<16) + 0.5
static const int16_t cos_4_16[4] attribute_used __attribute__ ((aligned(8))) = {
-19195,-19195,-19195,-19195}; // cos * (2<<16) + 0.5
static const int16_t ocos_4_16[4] attribute_used __attribute__ ((aligned(8))) = {
static const int16_t tg_1_16[4*4] attribute_used __attribute__ ((aligned(8))) = {
13036,13036,13036,13036, // tg * (2<<16) + 0.5
27146,27146,27146,27146, // tg * (2<<16) + 0.5
-21746,-21746,-21746,-21746, // tg * (2<<16) + 0.5
23170,23170,23170,23170}; // cos * (2<<15) + 0.5
static const int16_t otg_3_16[4] attribute_used __attribute__ ((aligned(8))) = {
21895,21895,21895,21895}; // tg * (2<<16) + 0.5
static const int32_t rounder_0[2*8] attribute_used __attribute__ ((aligned(8))) = {
65536,65536,
@ -414,12 +397,12 @@ static const int16_t tab_i_04_xmm[32*4] attribute_used __attribute__ ((aligned(8
//-----------------------------------------------------------------------------
#define DCT_8_INV_COL(A1,A2)\
"movq tg_3_16,%%mm0\n\t"\
"movq 2*8(%3),%%mm0\n\t"\
"movq 16*3+" #A1 ",%%mm3\n\t"\
"movq %%mm0,%%mm1 \n\t"/* tg_3_16*/\
"movq 16*5+" #A1 ",%%mm5\n\t"\
"pmulhw %%mm3,%%mm0 \n\t"/* x3*(tg_3_16-1)*/\
"movq tg_1_16,%%mm4\n\t"\
"movq (%3),%%mm4\n\t"\
"pmulhw %%mm5,%%mm1 \n\t"/* x5*(tg_3_16-1)*/\
"movq 16*7+" #A1 ",%%mm7\n\t"\
"movq %%mm4,%%mm2 \n\t"/* tg_1_16*/\
@ -429,7 +412,7 @@ static const int16_t tab_i_04_xmm[32*4] attribute_used __attribute__ ((aligned(8
"pmulhw %%mm6,%%mm2 \n\t"/* x1*tg_1_16*/\
"paddsw %%mm3,%%mm1 \n\t"/* x3+x5*(tg_3_16-1)*/\
"psubsw %%mm5,%%mm0 \n\t"/* x3*tg_3_16-x5 = tm35*/\
"movq ocos_4_16,%%mm3\n\t"\
"movq 3*8(%3),%%mm3\n\t"\
"paddsw %%mm5,%%mm1 \n\t"/* x3+x5*tg_3_16 = tp35*/\
"paddsw %%mm6,%%mm4 \n\t"/* x1+tg_1_16*x7 = tp17*/\
"psubsw %%mm7,%%mm2 \n\t"/* x1*tg_1_16-x7 = tm17*/\
@ -439,7 +422,7 @@ static const int16_t tab_i_04_xmm[32*4] attribute_used __attribute__ ((aligned(8
"psubsw %%mm0,%%mm6 \n\t"/* tm17-tm35 = b3*/\
"psubsw %%mm1,%%mm4 \n\t"/* tp17-tp35 = t1*/\
"paddsw %%mm0,%%mm2 \n\t"/* tm17+tm35 = t2*/\
"movq tg_2_16,%%mm7\n\t"\
"movq 1*8(%3),%%mm7\n\t"\
"movq %%mm4,%%mm1 \n\t"/* t1*/\
"movq %%mm5,3*16 +" #A2 "\n\t"/* save b0*/\
"paddsw %%mm2,%%mm1 \n\t"/* t1+t2*/\
@ -522,7 +505,7 @@ asm volatile(
//# Process the columns (4 at a time)
DCT_8_INV_COL(0(%0), 0(%0))
DCT_8_INV_COL(8(%0), 8(%0))
:: "r"(block), "r"(rounder_0), "r"(tab_i_04_mmx));
:: "r"(block), "r"(rounder_0), "r"(tab_i_04_mmx), "r"(tg_1_16));
}
//-----------------------------------------------------------------------------
@ -545,6 +528,6 @@ asm volatile(
//# Process the columns (4 at a time)
DCT_8_INV_COL(0(%0), 0(%0))
DCT_8_INV_COL(8(%0), 8(%0))
:: "r"(block), "r"(rounder_0), "r"(tab_i_04_xmm));
:: "r"(block), "r"(rounder_0), "r"(tab_i_04_xmm), "r"(tg_1_16));
}