Add multi quality levels encoding support for GEN7

Two encoding quality levels are support on GEN7.
Default quality level is set to be 1, which has better quality,
but higher gpu usage.
The second quality level is set to be 2, which has worse quality but
it has lower gpu usage.

Other platforms support for multi-quality-level will be added later.

v1->v2: 1. follow haihao's comments to init and check quality_level.
        2. remove CBR limitation for low quality level.

(Zhao Yakui helps to merge several patches on staging so that it can
be cherry-picked to master)

Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>

3 files changed, 40 insertions, 6 deletions

diff --git a/src/shaders/vme/inter_frame_ivb.asm b/src/shaders/vme/inter_frame_ivb.asm
index 3c08851..46f2b4b 100644
--- a/src/shaders/vme/inter_frame_ivb.asm
+++ b/src/shaders/vme/inter_frame_ivb.asm
@@ -391,12 +391,14 @@ mov (1) mb_intra_struct_ub<1>:UB input_mb_intra_ub<0,1,0>:UB {align1};
 
 /* M0 */
 /* IME search */
+cmp.z.f0.0 (1)		null<1>:uw	quality_level_ub<0,1,0>:ub		LOW_QUALITY_LEVEL:uw   {align1};
+(f0.0) jmpi (1) __low_quality_search;
+
+__high_quality_search:
 mov  (1) vme_m0.12<1>:UD   SEARCH_CTRL_SINGLE + INTER_PART_MASK + INTER_SAD_HAAR + SUB_PEL_MODE_QUARTER:UD {align1};  
 /* 16x16 Source, 1/4 pixel, harr */
 mov  (1) vme_m0.22<1>:UW        REF_REGION_SIZE {align1};         /* Reference Width&Height, 48x40 */
 
-mov  (1) vme_m0.0<1>:UD		vme_m0.8<0,1,0>:UD      {align1};
-
 mov  (1) vme_m0.0<1>:W		-16:W			{align1};
 mov  (1) vme_m0.2<1>:W		-12:W			{align1};
 
@@ -405,6 +407,22 @@ and.z.f0.0 (1)		null:uw	input_mb_intra_ub<0,1,0>:ub	INTRA_PRED_AVAIL_FLAG_AE:uw
 and.z.f0.0 (1)		null:uw	input_mb_intra_ub<0,1,0>:ub	INTRA_PRED_AVAIL_FLAG_B:uw   {align1};
 (f0.0)	add 	(1)	vme_m0.2<1>:w	vme_m0.2<0,1,0>:w	8:w	{align1};
 
+jmpi __vme_msg;
+
+__low_quality_search:
+mov  (1) vme_m0.12<1>:UD   SEARCH_CTRL_SINGLE + INTER_PART_MASK + INTER_SAD_HAAR + SUB_PEL_MODE_HALF:UD {align1};  
+/* 16x16 Source, 1/2 pixel, harr */
+mov  (1) vme_m0.22<1>:UW        MIN_REF_REGION_SIZE {align1};         /* Reference Width&Height, 32x32 */
+
+mov  (1) vme_m0.0<1>:W		-8:W			{align1};
+mov  (1) vme_m0.2<1>:W		-8:W			{align1};
+
+and.z.f0.0 (1)		null:uw	input_mb_intra_ub<0,1,0>:ub	INTRA_PRED_AVAIL_FLAG_AE:uw   {align1};
+(f0.0)	add 	(1)	vme_m0.0<1>:w	vme_m0.0<0,1,0>:w	4:w	{align1};
+and.z.f0.0 (1)		null:uw	input_mb_intra_ub<0,1,0>:ub	INTRA_PRED_AVAIL_FLAG_B:uw   {align1};
+(f0.0)	add 	(1)	vme_m0.2<1>:w	vme_m0.2<0,1,0>:w	4:w	{align1};
+
+__vme_msg:
 mov  (1) vme_m0.4<1>:UD		vme_m0.0<0,1,0>:UD	{align1};
 add  (2) vme_m0.0<1>:w		vme_m0.0<2,2,1>:w	mb_ref_win.16<2,2,1>:w	{align1};
 add  (2) vme_m0.4<1>:w		vme_m0.4<2,2,1>:w	mb_ref_win.16<2,2,1>:w	{align1};
diff --git a/src/shaders/vme/inter_frame_ivb.g7b b/src/shaders/vme/inter_frame_ivb.g7b
index e4db6ea..7ed38c5 100644
--- a/src/shaders/vme/inter_frame_ivb.g7b
+++ b/src/shaders/vme/inter_frame_ivb.g7b
@@ -141,13 +141,13 @@
    { 0x00000001, 0x2fa401ad, 0x00000b04, 0x00000000 },
    { 0x00000001, 0x2fa801ad, 0x00000b24, 0x00000000 },
    { 0x00000040, 0x2fe00c01, 0x00001400, 0x00000020 },
-   { 0x00000020, 0x34001c00, 0x00001400, 0x000000bc },
+   { 0x00000020, 0x34001c00, 0x00001400, 0x000000d0 },
    { 0x00000001, 0x2ac001ad, 0x00000fe4, 0x00000000 },
    { 0x00000001, 0x2fa001ad, 0x00000ae6, 0x00000000 },
    { 0x00000001, 0x2fa401ad, 0x00000b06, 0x00000000 },
    { 0x00000001, 0x2fa801ad, 0x00000b26, 0x00000000 },
    { 0x00000040, 0x2fe00c01, 0x00001400, 0x00000020 },
-   { 0x00000020, 0x34001c00, 0x00001400, 0x000000b0 },
+   { 0x00000020, 0x34001c00, 0x00001400, 0x000000c4 },
    { 0x00000001, 0x2ac201ad, 0x00000fe4, 0x00000000 },
    { 0x0020000c, 0x2a803dad, 0x00450ac0, 0x00020002 },
    { 0x00200040, 0x2a883dad, 0x00450a80, 0x00030003 },
@@ -163,15 +163,25 @@
    { 0x01000005, 0x20002e28, 0x000000a4, 0x00010001 },
    { 0x00010001, 0x247c0171, 0x00000000, 0x00020002 },
    { 0x00000001, 0x247d0231, 0x000000a5, 0x00000000 },
+   { 0x01000010, 0x20002e28, 0x000000a7, 0x00020002 },
+   { 0x00010020, 0x34001c00, 0x00001400, 0x00000012 },
    { 0x00000001, 0x244c0061, 0x00000000, 0x00203000 },
    { 0x00000001, 0x24560169, 0x00000000, 0x28302830 },
-   { 0x00000001, 0x24400021, 0x00000448, 0x00000000 },
    { 0x00000001, 0x244001ed, 0x00000000, 0xfff0fff0 },
    { 0x00000001, 0x244201ed, 0x00000000, 0xfff4fff4 },
    { 0x01000005, 0x20002e28, 0x000000a5, 0x00600060 },
    { 0x00010040, 0x24403dad, 0x00000440, 0x000c000c },
    { 0x01000005, 0x20002e28, 0x000000a5, 0x00100010 },
    { 0x00010040, 0x24423dad, 0x00000442, 0x00080008 },
+   { 0x00000020, 0x34001c00, 0x00001400, 0x00000010 },
+   { 0x00000001, 0x244c0061, 0x00000000, 0x00201000 },
+   { 0x00000001, 0x24560169, 0x00000000, 0x20202020 },
+   { 0x00000001, 0x244001ed, 0x00000000, 0xfff8fff8 },
+   { 0x00000001, 0x244201ed, 0x00000000, 0xfff8fff8 },
+   { 0x01000005, 0x20002e28, 0x000000a5, 0x00600060 },
+   { 0x00010040, 0x24403dad, 0x00000440, 0x00040004 },
+   { 0x01000005, 0x20002e28, 0x000000a5, 0x00100010 },
+   { 0x00010040, 0x24423dad, 0x00000442, 0x00040004 },
    { 0x00000001, 0x24440021, 0x00000440, 0x00000000 },
    { 0x00200040, 0x244035ad, 0x00450440, 0x00450a90 },
    { 0x00200040, 0x244435ad, 0x00450444, 0x00450a90 },
diff --git a/src/shaders/vme/vme7.inc b/src/shaders/vme/vme7.inc
index 3fa99b7..e9d5864 100644
--- a/src/shaders/vme/vme7.inc
+++ b/src/shaders/vme/vme7.inc
@@ -54,6 +54,8 @@ define(`SEARCH_CTRL_DUAL_RECORD',       `0x00000300')
 define(`SEARCH_CTRL_DUAL_REFERENCE',    `0x00000700')
 
 define(`REF_REGION_SIZE',               `0x2830:UW')
+define(`MIN_REF_REGION_SIZE',           `0x2020:UW')
+define(`DREF_REGION_SIZE',              `0x2020:UW')
 
 define(`BI_SUB_MB_PART_MASK',           `0x0c000000')
 define(`MAX_NUM_MV',                    `0x00000020')
@@ -132,6 +134,7 @@ define(`orig_y_ub',             `inline_reg0.1')
 define(`transform_8x8_ub',      `inline_reg0.4')
 define(`input_mb_intra_ub',     `inline_reg0.5')
 define(`num_macroblocks',       `inline_reg0.6')
+define(`quality_level_ub',      `inline_reg0.7')
 
 /*
  * GRF 6~11 -- reserved
@@ -291,7 +294,6 @@ define(`mb_mv3',		`r96')
 define(`mb_ref',		`r97')
 define(`mb_ref_win',		`r84')
 
-define(`DREF_REGION_SIZE',               `0x2020:UW')
 define(`PRED_L0',               `0x0':uw)
 define(`PRED_L1',               `0x1':uw)
 define(`PRED_BI',               `0x2':uw)
@@ -317,3 +319,7 @@ define(`INTER_8X16MODE',		`0x02')
 define(`OBR_MESSAGE_FENCE',              `7')
 define(`OBR_MF_NOCOMMIT',		 `0')
 define(`OBR_MF_COMMIT',			 `0x20')
+
+define(`DEFAULT_QUALITY_LEVEL',           `0x01')
+define(`HIGH_QUALITY_LEVEL',              `DEFAULT_QUALITY_LEVEL')
+define(`LOW_QUALITY_LEVEL',               `0x02')