Fix one error of VME shader for MPEG2 encoding on BDW

Otherwise the MPEG2 encoding will use the incorrect prediction result for the
macroblocks in the first row if the MVP is used

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>

diff --git a/src/shaders/vme/mpeg2_inter_gen8.asm b/src/shaders/vme/mpeg2_inter_gen8.asm
index d7cb52d..6dd8599 100644 (file)
--- a/src/shaders/vme/mpeg2_inter_gen8.asm
+++ b/src/shaders/vme/mpeg2_inter_gen8.asm
@@ -294,7 +294,7 @@ mb_mvp_start:
 add    (1)     tmp_reg0.0<1>:d         mbb_result.0<0,1,0>:d   mbc_result.0<0,1,0>:d   {align1};
 cmp.z.f0.0 (1) null:d                  tmp_reg0.0<0,1,0>:d     0:d     {align1};
 (-f0.0)        jmpi (1)        mb_median_start;
-cmp.nz.f0.0 (1)        null:d  mba_result.0<0,1,0>:d           1:d             {align1};
+cmp.nz.f0.0 (1)        null:d  mba_result.0<0,1,0>:d           0:d             {align1};
 (f0.0) mov     (1)     mbb_result.4<1>:ud              mba_result.4<0,1,0>:ud  {align1};       
 (f0.0) mov     (1)     mbc_result.4<1>:ud              mba_result.4<0,1,0>:ud  {align1};       
 (f0.0) mov     (1)     mbb_result.20<1>:uw             mba_result.20<0,1,0>:uw {align1};       

diff --git a/src/shaders/vme/mpeg2_inter_gen8.g8b b/src/shaders/vme/mpeg2_inter_gen8.g8b
index 7cee07e..6686c9f 100644 (file)
--- a/src/shaders/vme/mpeg2_inter_gen8.g8b
+++ b/src/shaders/vme/mpeg2_inter_gen8.g8b
@@ -98,7 +98,7 @@
    { 0x00000040, 0x24000a28, 0x0a000b00, 0x00000b20 },
    { 0x01000010, 0x20000a20, 0x0e000400, 0x00000000 },
    { 0x00110020, 0x34000000, 0x0e001400, 0x00000080 },
-   { 0x02000010, 0x20000a20, 0x0e000ae0, 0x00000001 },
+   { 0x02000010, 0x20000a20, 0x0e000ae0, 0x00000000 },
    { 0x00010001, 0x2b040208, 0x00000ae4, 0x00000000 },
    { 0x00010001, 0x2b240208, 0x00000ae4, 0x00000000 },
    { 0x00010001, 0x2b141248, 0x00000af4, 0x00000000 },