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Applied the PIC patches from David Schleef.
Original commit message from CVS: Applied the PIC patches from David Schleef.
This commit is contained in:
Wim Taymans
parent
ab50b3af8b
commit
5e29e07c62
1 changed files with 49 additions and 34 deletions
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@ -4,8 +4,18 @@
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* for example in 11...1110000 format
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* If the iDCT is of I macroblock then 0.5 needs to be added to the;DC Component
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* (element[0][0] of the matrix)
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*
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* Notes:
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* - the scratchN variables should be put on the stack to avoid
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* reentrancy problems
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*/
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#ifdef PIC
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#define pic_offset(a) a@GOTOFF(%ebx)
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#else
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#define pic_offset(a) a
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#endif
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/* extrn re_matrix */
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.data
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@ -95,9 +105,14 @@ gst_idct_mmx_idct:
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pushl %edx
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pushl %esi
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pushl %edi
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#ifdef PIC
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call here
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here: popl %ebx
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addl $_GLOBAL_OFFSET_TABLE_+[.-here],%ebx
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#endif
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movl 8(%ebp),%esi /* source matrix */
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movq (%esi), %mm0
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paddw x0000000000000004, %mm0
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paddw pic_offset(x0000000000000004), %mm0
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movq 8(%esi), %mm1
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psllw $4, %mm0
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movq 16(%esi), %mm2
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@ -145,7 +160,7 @@ gst_idct_mmx_idct:
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movq %mm5,104(%esi)
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movq %mm6,112(%esi)
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movq %mm7,120(%esi)
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leal preSC, %ecx
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leal pic_offset(preSC), %ecx
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/* column 0: even part
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* use V4, V12, V0, V8 to produce V22..V25
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*/
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@ -161,7 +176,7 @@ gst_idct_mmx_idct:
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movq %mm1, %mm2 /* added 11/1/96 */
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pmulhw 8*8(%esi),%mm5 /* V8 */
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psubsw %mm0, %mm1 /* V16 */
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pmulhw x5a825a825a825a82, %mm1 /* 23170 ->V18 */
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pmulhw pic_offset(x5a825a825a825a82), %mm1 /* 23170 ->V18 */
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paddsw %mm0, %mm2 /* V17 */
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movq %mm2, %mm0 /* duplicate V17 */
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psraw $1, %mm2 /* t75=t82 */
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@ -202,7 +217,7 @@ gst_idct_mmx_idct:
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paddsw %mm0, %mm3 /* V29 ; free mm0 */
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movq %mm7, %mm1 /* duplicate V26 */
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psraw $1, %mm3 /* t91=t94 */
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pmulhw x539f539f539f539f,%mm7 /* V33 */
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pmulhw pic_offset(x539f539f539f539f),%mm7 /* V33 */
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psraw $1, %mm1 /* t96 */
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movq %mm5, %mm0 /* duplicate V2 */
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psraw $2, %mm4 /* t85=t87 */
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@ -210,15 +225,15 @@ gst_idct_mmx_idct:
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psubsw %mm4, %mm0 /* V28 ; free mm4 */
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movq %mm0, %mm2 /* duplicate V28 */
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psraw $1, %mm5 /* t90=t93 */
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pmulhw x4546454645464546,%mm0 /* V35 */
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pmulhw pic_offset(x4546454645464546),%mm0 /* V35 */
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psraw $1, %mm2 /* t97 */
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movq %mm5, %mm4 /* duplicate t90=t93 */
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psubsw %mm2, %mm1 /* V32 ; free mm2 */
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pmulhw x61f861f861f861f8,%mm1 /* V36 */
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pmulhw pic_offset(x61f861f861f861f8),%mm1 /* V36 */
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psllw $1, %mm7 /* t107 */
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paddsw %mm3, %mm5 /* V31 */
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psubsw %mm3, %mm4 /* V30 ; free mm3 */
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pmulhw x5a825a825a825a82,%mm4 /* V34 */
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pmulhw pic_offset(x5a825a825a825a82),%mm4 /* V34 */
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nop
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psubsw %mm1, %mm0 /* V38 */
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psubsw %mm7, %mm1 /* V37 ; free mm7 */
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@ -285,7 +300,7 @@ gst_idct_mmx_idct:
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psubsw %mm7, %mm1 /* V50 */
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pmulhw 8*9(%esi), %mm5 /* V9 */
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paddsw %mm7, %mm2 /* V51 */
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pmulhw x5a825a825a825a82, %mm1 /* 23170 ->V52 */
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pmulhw pic_offset(x5a825a825a825a82), %mm1 /* 23170 ->V52 */
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movq %mm2, %mm6 /* duplicate V51 */
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psraw $1, %mm2 /* t138=t144 */
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movq %mm3, %mm4 /* duplicate V1 */
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@ -326,11 +341,11 @@ gst_idct_mmx_idct:
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* even more by doing the correction step in a later stage when the number
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* is actually multiplied by 16
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*/
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paddw x0005000200010001, %mm4
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paddw pic_offset(x0005000200010001), %mm4
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psubsw %mm6, %mm3 /* V60 ; free mm6 */
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psraw $1, %mm0 /* t154=t156 */
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movq %mm3, %mm1 /* duplicate V60 */
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pmulhw x539f539f539f539f, %mm1 /* V67 */
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pmulhw pic_offset(x539f539f539f539f), %mm1 /* V67 */
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movq %mm5, %mm6 /* duplicate V3 */
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psraw $2, %mm4 /* t148=t150 */
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paddsw %mm4, %mm5 /* V61 */
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@ -339,13 +354,13 @@ gst_idct_mmx_idct:
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psllw $1, %mm1 /* t169 */
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paddsw %mm0, %mm5 /* V65 -> result */
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psubsw %mm0, %mm4 /* V64 ; free mm0 */
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pmulhw x5a825a825a825a82, %mm4 /* V68 */
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pmulhw pic_offset(x5a825a825a825a82), %mm4 /* V68 */
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psraw $1, %mm3 /* t158 */
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psubsw %mm6, %mm3 /* V66 */
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movq %mm5, %mm2 /* duplicate V65 */
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pmulhw x61f861f861f861f8, %mm3 /* V70 */
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pmulhw pic_offset(x61f861f861f861f8), %mm3 /* V70 */
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psllw $1, %mm6 /* t165 */
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pmulhw x4546454645464546, %mm6 /* V69 */
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pmulhw pic_offset(x4546454645464546), %mm6 /* V69 */
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psraw $1, %mm2 /* t172 */
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/* moved from next block */
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movq 8*5(%esi), %mm0 /* V56 */
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@ -470,7 +485,7 @@ gst_idct_mmx_idct:
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* movq 8*13(%esi), %mm4 tmt13
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*/
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psubsw %mm4, %mm3 /* V134 */
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pmulhw x5a825a825a825a82, %mm3 /* 23170 ->V136 */
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pmulhw pic_offset(x5a825a825a825a82), %mm3 /* 23170 ->V136 */
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movq 8*9(%esi), %mm6 /* tmt9 */
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paddsw %mm4, %mm5 /* V135 ; mm4 free */
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movq %mm0, %mm4 /* duplicate tmt1 */
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@ -499,17 +514,17 @@ gst_idct_mmx_idct:
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psubsw %mm7, %mm0 /* V144 */
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movq %mm0, %mm3 /* duplicate V144 */
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paddsw %mm7, %mm2 /* V147 ; free mm7 */
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pmulhw x539f539f539f539f, %mm0 /* 21407-> V151 */
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pmulhw pic_offset(x539f539f539f539f), %mm0 /* 21407-> V151 */
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movq %mm1, %mm7 /* duplicate tmt3 */
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paddsw %mm5, %mm7 /* V145 */
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psubsw %mm5, %mm1 /* V146 ; free mm5 */
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psubsw %mm1, %mm3 /* V150 */
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movq %mm7, %mm5 /* duplicate V145 */
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pmulhw x4546454645464546, %mm1 /* 17734-> V153 */
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pmulhw pic_offset(x4546454645464546), %mm1 /* 17734-> V153 */
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psubsw %mm2, %mm5 /* V148 */
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pmulhw x61f861f861f861f8, %mm3 /* 25080-> V154 */
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pmulhw pic_offset(x61f861f861f861f8), %mm3 /* 25080-> V154 */
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psllw $2, %mm0 /* t311 */
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pmulhw x5a825a825a825a82, %mm5 /* 23170-> V152 */
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pmulhw pic_offset(x5a825a825a825a82), %mm5 /* 23170-> V152 */
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paddsw %mm2, %mm7 /* V149 ; free mm2 */
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psllw $1, %mm1 /* t313 */
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nop /* without the nop - freeze here for one clock */
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@ -535,7 +550,7 @@ gst_idct_mmx_idct:
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paddsw %mm3, %mm6 /* V164 ; free mm3 */
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movq %mm4, %mm3 /* duplicate V142 */
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psubsw %mm5, %mm4 /* V165 ; free mm5 */
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movq %mm2, scratch7 /* out7 */
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movq %mm2, pic_offset(scratch7) /* out7 */
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psraw $4, %mm6
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psraw $4, %mm4
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paddsw %mm5, %mm3 /* V162 */
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@ -546,11 +561,11 @@ gst_idct_mmx_idct:
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*/
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movq %mm6, 8*9(%esi) /* out9 */
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paddsw %mm1, %mm0 /* V161 */
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movq %mm3, scratch5 /* out5 */
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movq %mm3, pic_offset(scratch5) /* out5 */
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psubsw %mm1, %mm5 /* V166 ; free mm1 */
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movq %mm4, 8*11(%esi) /* out11 */
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psraw $4, %mm5
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movq %mm0, scratch3 /* out3 */
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movq %mm0, pic_offset(scratch3) /* out3 */
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movq %mm2, %mm4 /* duplicate V140 */
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movq %mm5, 8*13(%esi) /* out13 */
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paddsw %mm7, %mm2 /* V160 */
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@ -560,7 +575,7 @@ gst_idct_mmx_idct:
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/* moved from the next block */
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movq 8*3(%esi), %mm7
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psraw $4, %mm4
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movq %mm2, scratch1 /* out1 */
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movq %mm2, pic_offset(scratch1) /* out1 */
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/* moved from the next block */
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movq %mm0, %mm1
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movq %mm4, 8*15(%esi) /* out15 */
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@ -617,15 +632,15 @@ gst_idct_mmx_idct:
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paddsw %mm4, %mm3 /* V113 ; free mm4 */
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movq %mm0, %mm4 /* duplicate V110 */
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paddsw %mm1, %mm2 /* V111 */
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pmulhw x539f539f539f539f, %mm0 /* 21407-> V117 */
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pmulhw pic_offset(x539f539f539f539f), %mm0 /* 21407-> V117 */
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psubsw %mm1, %mm5 /* V112 ; free mm1 */
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psubsw %mm5, %mm4 /* V116 */
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movq %mm2, %mm1 /* duplicate V111 */
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pmulhw x4546454645464546, %mm5 /* 17734-> V119 */
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pmulhw pic_offset(x4546454645464546), %mm5 /* 17734-> V119 */
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psubsw %mm3, %mm2 /* V114 */
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pmulhw x61f861f861f861f8, %mm4 /* 25080-> V120 */
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pmulhw pic_offset(x61f861f861f861f8), %mm4 /* 25080-> V120 */
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paddsw %mm3, %mm1 /* V115 ; free mm3 */
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pmulhw x5a825a825a825a82, %mm2 /* 23170-> V118 */
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pmulhw pic_offset(x5a825a825a825a82), %mm2 /* 23170-> V118 */
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psllw $2, %mm0 /* t266 */
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movq %mm1, (%esi) /* save V115 */
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psllw $1, %mm5 /* t268 */
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@ -643,7 +658,7 @@ gst_idct_mmx_idct:
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movq %mm6, %mm3 /* duplicate tmt4 */
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psubsw %mm0, %mm6 /* V100 */
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paddsw %mm0, %mm3 /* V101 ; free mm0 */
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pmulhw x5a825a825a825a82, %mm6 /* 23170 ->V102 */
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pmulhw pic_offset(x5a825a825a825a82), %mm6 /* 23170 ->V102 */
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movq %mm7, %mm5 /* duplicate tmt0 */
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movq 8*8(%esi), %mm1 /* tmt8 */
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paddsw %mm1, %mm7 /* V103 */
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@ -677,10 +692,10 @@ gst_idct_mmx_idct:
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movq 8*2(%esi), %mm3 /* V123 */
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paddsw %mm4, %mm7 /* out0 */
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/* moved up from next block */
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movq scratch3, %mm0
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movq pic_offset(scratch3), %mm0
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psraw $4, %mm7
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/* moved up from next block */
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movq scratch5, %mm6
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movq pic_offset(scratch5), %mm6
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psubsw %mm4, %mm1 /* out14 ; free mm4 */
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paddsw %mm3, %mm5 /* out2 */
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psraw $4, %mm1
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@ -691,7 +706,7 @@ gst_idct_mmx_idct:
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movq %mm5, 8*2(%esi) /* out2 ; free mm5 */
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psraw $4, %mm2
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/* moved up to the prev block */
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movq scratch7, %mm4
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movq pic_offset(scratch7), %mm4
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/* moved up to the prev block */
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psraw $4, %mm0
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movq %mm2, 8*12(%esi) /* out12 ; free mm2 */
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@ -699,13 +714,13 @@ gst_idct_mmx_idct:
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psraw $4, %mm6
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/* move back the data to its correct place
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* moved up to the prev block
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* movq scratch3, %mm0
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* movq scratch5, %mm6
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* movq scratch7, %mm4
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* movq pic_offset(scratch3), %mm0
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* movq pic_offset(scratch5), %mm6
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* movq pic_offset(scratch7), %mm4
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* psraw $4, %mm0
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* psraw $4, %mm6
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*/
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movq scratch1, %mm1
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movq pic_offset(scratch1), %mm1
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psraw $4, %mm4
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movq %mm0, 8*3(%esi) /* out3 */
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psraw $4, %mm1
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