libvpx: Pull from upstream

source/libvpx/vp9/common/x86/vp9_idct_ssse3.asm

Index: source/libvpx/vp9/common/x86/vp9_idct_ssse3.asm
===================================================================
--- source/libvpx/vp9/common/x86/vp9_idct_ssse3.asm	(revision 271012)
+++ source/libvpx/vp9/common/x86/vp9_idct_ssse3.asm	(working copy)
@@ -28,6 +28,29 @@
 TRANSFORM_COEFFS    3196, 16069
 TRANSFORM_COEFFS   13623,  9102
 
+%macro PAIR_PP_COEFFS 2
+dpw_%1_%2:   dw  %1,  %1,  %1,  %1,  %2,  %2,  %2,  %2
+%endmacro
+
+%macro PAIR_MP_COEFFS 2
+dpw_m%1_%2:  dw -%1, -%1, -%1, -%1,  %2,  %2,  %2,  %2
+%endmacro
+
+%macro PAIR_MM_COEFFS 2
+dpw_m%1_m%2: dw -%1, -%1, -%1, -%1, -%2, -%2, -%2, -%2
+%endmacro
+
+PAIR_PP_COEFFS     30274, 12540
+PAIR_PP_COEFFS      6392, 32138
+PAIR_MP_COEFFS     18204, 27246
+
+PAIR_PP_COEFFS     12540, 12540
+PAIR_PP_COEFFS     30274, 30274
+PAIR_PP_COEFFS      6392,  6392
+PAIR_PP_COEFFS     32138, 32138
+PAIR_MM_COEFFS     18204, 18204
+PAIR_PP_COEFFS     27246, 27246
+
 SECTION .text
 
 %if ARCH_X86_64
@@ -128,6 +151,7 @@
 %endmacro
 
 INIT_XMM ssse3
+; full inverse 8x8 2D-DCT transform
 cglobal idct8x8_64_add, 3, 5, 13, input, output, stride
   mova     m8, [pd_8192]
   mova    m11, [pw_16]
@@ -159,4 +183,118 @@
   ADD_STORE_8P_2X  6, 7, 9, 10, 12
 
   RET
+
+; inverse 8x8 2D-DCT transform with only first 10 coeffs non-zero
+cglobal idct8x8_12_add, 3, 5, 13, input, output, stride
+  mova       m8, [pd_8192]
+  mova      m11, [pw_16]
+  mova      m12, [pw_11585x2]
+
+  lea        r3, [2 * strideq]
+
+  mova       m0, [inputq +  0]
+  mova       m1, [inputq + 16]
+  mova       m2, [inputq + 32]
+  mova       m3, [inputq + 48]
+
+  punpcklwd  m0, m1
+  punpcklwd  m2, m3
+  punpckhdq  m9, m0, m2
+  punpckldq  m0, m2
+  SWAP       2, 9
+
+  ; m0 -> [0], [0]
+  ; m1 -> [1], [1]
+  ; m2 -> [2], [2]
+  ; m3 -> [3], [3]
+  punpckhqdq m10, m0, m0
+  punpcklqdq m0,  m0
+  punpckhqdq m9,  m2, m2
+  punpcklqdq m2,  m2
+  SWAP       1, 10
+  SWAP       3,  9
+
+  pmulhrsw   m0, m12
+  pmulhrsw   m2, [dpw_30274_12540]
+  pmulhrsw   m1, [dpw_6392_32138]
+  pmulhrsw   m3, [dpw_m18204_27246]
+
+  SUM_SUB    0, 2, 9
+  SUM_SUB    1, 3, 9
+
+  punpcklqdq m9, m3, m3
+  punpckhqdq m5, m3, m9
+
+  SUM_SUB    3, 5, 9
+  punpckhqdq m5, m3
+  pmulhrsw   m5, m12
+
+  punpckhqdq m9, m1, m5
+  punpcklqdq m1, m5
+  SWAP       5, 9
+
+  SUM_SUB    0, 5, 9
+  SUM_SUB    2, 1, 9
+
+  punpckhqdq m3, m0, m0
+  punpckhqdq m4, m1, m1
+  punpckhqdq m6, m5, m5
+  punpckhqdq m7, m2, m2
+
+  punpcklwd  m0, m3
+  punpcklwd  m7, m2
+  punpcklwd  m1, m4
+  punpcklwd  m6, m5
+
+  punpckhdq  m4, m0, m7
+  punpckldq  m0, m7
+  punpckhdq  m10, m1, m6
+  punpckldq  m5, m1, m6
+
+  punpckhqdq m1, m0, m5
+  punpcklqdq m0, m5
+  punpckhqdq m3, m4, m10
+  punpcklqdq m2, m4, m10
+
+
+  pmulhrsw   m0, m12
+  pmulhrsw   m6, m2, [dpw_30274_30274]
+  pmulhrsw   m4, m2, [dpw_12540_12540]
+
+  pmulhrsw   m7, m1, [dpw_32138_32138]
+  pmulhrsw   m1, [dpw_6392_6392]
+  pmulhrsw   m5, m3, [dpw_m18204_m18204]
+  pmulhrsw   m3, [dpw_27246_27246]
+
+  mova       m2, m0
+  SUM_SUB    0, 6, 9
+  SUM_SUB    2, 4, 9
+  SUM_SUB    1, 5, 9
+  SUM_SUB    7, 3, 9
+
+  SUM_SUB    3, 5, 9
+  pmulhrsw   m3, m12
+  pmulhrsw   m5, m12
+
+  SUM_SUB    0, 7, 9
+  SUM_SUB    2, 3, 9
+  SUM_SUB    4, 5, 9
+  SUM_SUB    6, 1, 9
+
+  SWAP       3, 6
+  SWAP       1, 2
+  SWAP       2, 4
+
+
+  pxor    m12, m12
+  ADD_STORE_8P_2X  0, 1, 9, 10, 12
+  lea              outputq, [outputq + r3]
+  ADD_STORE_8P_2X  2, 3, 9, 10, 12
+  lea              outputq, [outputq + r3]
+  ADD_STORE_8P_2X  4, 5, 9, 10, 12
+  lea              outputq, [outputq + r3]
+  ADD_STORE_8P_2X  6, 7, 9, 10, 12
+
+  RET
+
 %endif