/*************************************************************************** Copyright 2007 SiS Corporation. All Rights Reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sub license, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice (including the next paragraph) shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL INTEL, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. **************************************************************************/ /*************************************************************************** * SiSXvMC.h: MC Driver SiS includes * * Authors: * Chaoyu Chen * Ming-Ru Li * * ***************************************************************************/ #define XVMC_DEBUG(x) #include "xf86drm.h" #include #define CMD_BUFFER_MAX 8 typedef struct { drm_context_t drmcontext; drm_context_t AGPHandle; unsigned long AGPSize; drm_handle_t MMIOHandle; unsigned long MMIOSize; unsigned long FBhandle; unsigned long FBSize; unsigned long ChipID; unsigned long HDisplay; unsigned long VDisplay; char busIdString[10]; char pad[2]; } SiSXvMCCreateContextRec; typedef struct { unsigned int offsets[3]; unsigned int MyNum; } SiSXvMCCreateSurfaceRec; /*************************************************************************** // SiSOverlayRec: Structure that is used to reference the overlay // register memory. A SiSOverlayRecPtr is set to the address of the // allocated overlay registers. ***************************************************************************/ typedef struct _SiSOverlayRec { int x, x2, y,y2; uint window_width,window_height; unsigned long HDisplay, VDisplay; /* current mode (resolution) */ unsigned int startx, starty; CARD16 HUSF, VUSF; CARD8 IntBit, wHPre; void* privContext; float tap_scale, tap_scale_old; short srcx, srcy; unsigned short srcw, srch; /* values differing from chips nature*/ int PitchAlignmentMask; int AdddressHighestBits; int AddressShiftNum; int havetapscaler; int SubpShift; int SubPitchShiftMask; } SiSOverlayRec, *SiSOverlayRecPtr; /*************************************************************************** // SiSXvMCDrmMap: Holds the data about the DRM maps ***************************************************************************/ typedef struct _SiSXvMCDrmMap { drm_handle_t offset; /* handle */ drmAddress address; unsigned long size; } SiSXvMCDrmMap, *SiSXvMCDrmMapPtr; /*************************************************************************** // SiSXvMCContext: Private Context data referenced via the privData // pointer in the XvMCContext structure. ***************************************************************************/ typedef struct _SiSXvMCContext { int fd; /* File descriptor for /dev/dri */ int ref; /* reference number = surface num + subpicture num*/ int lock; /* for drmlock */ int ChipID; /* infomation from X-server */ SiSXvMCDrmMap agp_map; SiSXvMCDrmMap mmio_map; SiSXvMCDrmMap fb_map; drm_context_t drmcontext; char busIdString[10]; /* PCI:0:1:0 or PCI:0:2:0 */ /* attributions about MPEG */ int DecodeMode; /* slice or mc only. */ int CmdBufSize; int AGPHeap; /* AGP or video-ram */ int SurfaceNum; unsigned long CmdBuf[CMD_BUFFER_MAX]; int FrameBufShift; /* attrbutions about overlay(displaying) */ SiSOverlayRec *pOverlay; Atom xv_colorkey; Atom xv_brightness; Atom xv_contrast; Atom xv_saturation; int brightness; int saturation; int contrast; int colorkey; /* flags */ unsigned int last_render; } SiSXvMCContext; /*************************************************************************** // SiSXvMCSurface: Private data structure for each XvMCSurface. This // structure is referenced by the privData pointer in the XvMCSurface // structure. ***************************************************************************/ typedef struct _SiSXvMCSurface { unsigned int MyNum; unsigned long MyBuff;/* AGP Cmd Buff */ unsigned long MyOffset; /*AGP offset */ unsigned short FrameType; /* I, P, or B Frame*/ unsigned int offsets[3];/* Y, U, V offsets of AGP */ unsigned long CurrentEntry;/* Cmd buffer pointer */ unsigned short pict_struct; int forRefer, BackRefer; void* xvmcsurface; /* XvMCSurface* */ /* other structure */ SiSXvMCContext *privContext; void *Subp; /* flags */ unsigned int last_render; unsigned short status; int DisplayingAskCounter; /* count the times showing displaying */ } SiSXvMCSurface; /* Surface Status */ #define SurfaceIdle 0 #define SurfaceRendering 1 #define SurfaceDisplaying 2 /*************************************************************************** // i810XvMCSubpicture: Private data structure for each XvMCSubpicture. This // structure is referenced by the privData pointer in the XvMCSubpicture // structure. ***************************************************************************/ typedef struct _SiSXvMCSubpicture { /* infomation from X-server */ drmAddress data; unsigned int pitch; unsigned long offset; CARD8 palette[16][2]; XID formatID; int status; SiSXvMCContext *privContext; } SiSXvMCSubpicture; /*************************************************************************** // drm_i810_mc_t: Structure used by mc dispatch ioctl. // NOTE: If you change this structure you will have to change the equiv. // structure in the kernel. ***************************************************************************/ typedef struct _drm_sis_mc { int idx; /* buffer index */ int used; /* nr bytes in use */ int num_blocks; /* number of GFXBlocks */ int *length; /* List of lengths for GFXBlocks */ unsigned int last_render; /* Last render request */ } drm_sis_mc_t; /* decode mode */ #define HWMODE_MCONLY 0x001l #define HWMODE_ADVANCED 0x002l #define HWMODE_H264 0x004l /* Subpicture fourcc */ #define FOURCC_IA44 0x34344149 /* SR */ #define Index_SR_Module_Enable 0x1e /* CR */ /*select MPEG data source From AGP or FLB */ #define Index_CR_MPEG_Data_Source 0x46 /************************************************/ /* MMIO */ /************************************************/ /* mmio registers for video */ #define REG_PRIM_CRT_COUNTER 0x8514 /* Clcok Static and Dynamic Control and Fire Command enable */ #define REG_CLK_CMD 0x8704 /* starting address od the system buffer in 128-bit unit*/ #define REG_BUFFER_CMD 0x8708 /* motion compensation enable/disable flag */ #define REG_VIDEO_FLIP_CMD 0x870C /* mode selection and module off/on flag */ #define REG_MODE_SELECT 0x8710 /* Frame Buffer Indicator Set Register */ #define REG_BUF_DEC_MASK 0x8714 /* Frame Buffer Indicator Register */ #define REG_BUF_DEC_FLAG 0x8718 /* Video Playback Status checking On/Off flag */ #define REG_VID_CHKC_FLAG 0x871c /* line pitch of luminance and chrominance buffer */ #define REG_MPEG_PITCH 0x8720 /* starting address of each frame buffer in 128-bit unit */ #define REG_BUFFER_Y0 0x8724 #define REG_BUFFER_CB0 0x8728 #define REG_BUFFER_CR0 0x872C #define REG_BUFFER_Y1 0x8730 #define REG_BUFFER_CB1 0x8734 #define REG_BUFFER_CR1 0x8738 #define REG_BUFFER_Y2 0x873C #define REG_BUFFER_CB2 0x8740 #define REG_BUFFER_CR2 0x8744 #define REG_BUFFER_Y3 0x8748 #define REG_BUFFER_CB3 0x874C #define REG_BUFFER_CR3 0x8750 #define REG_BUFFER_Y4 0x877c #define REG_BUFFER_CB4 0x8780 #define REG_BUFFER_CR4 0x8784 #define REG_BUFFER_Y5 0x8788 #define REG_BUFFER_CB5 0x878c #define REG_BUFFER_CR5 0x8790 /* MPEG decode status register (read only) */ #define REG_MPEG_STATUS 0x8754 /* Picture Layer Parameter (read only) */ #define REG_MPEG_PLP0 0x8758 #define REG_MPEG_PLP1 0x875C #define REG_MPEG_PLP2 0x8760 /* Macroblock Header (read only) */ #define REG_MPEG_MBT 0x8764 #define REG_MPEG_FORXY 0x8768 #define REG_MPEG_BACKXY 0x876C #define REG_MPEG_FORBXY 0x8770 #define REG_MPEG_BACKBXY 0x8774 /* system buffer status (read only) */ #define REG_MPEG_CMDBUFFG 0x8778 /* Video registers (300/315/330/340 series only) --------------- */ #define Index_VI_Passwd 0x00 /* Video overlay horizontal start/end, unit=screen pixels */ #define Index_VI_Win_Hor_Disp_Start_Low 0x01 #define Index_VI_Win_Hor_Disp_End_Low 0x02 #define Index_VI_Win_Hor_Over 0x03 /* Overflow */ /* Video overlay vertical start/end, unit=screen pixels */ #define Index_VI_Win_Ver_Disp_Start_Low 0x04 #define Index_VI_Win_Ver_Disp_End_Low 0x05 #define Index_VI_Win_Ver_Over 0x06 /* Overflow */ /* Y Plane (4:2:0) or YUV (4:2:2) buffer start address, unit=word */ #define Index_VI_Disp_Y_Buf_Start_Low 0x07 #define Index_VI_Disp_Y_Buf_Start_Middle 0x08 #define Index_VI_Disp_Y_Buf_Start_High 0x09 /* U Plane (4:2:0) buffer start address, unit=word */ #define Index_VI_U_Buf_Start_Low 0x0A #define Index_VI_U_Buf_Start_Middle 0x0B #define Index_VI_U_Buf_Start_High 0x0C /* V Plane (4:2:0) buffer start address, unit=word */ #define Index_VI_V_Buf_Start_Low 0x0D #define Index_VI_V_Buf_Start_Middle 0x0E #define Index_VI_V_Buf_Start_High 0x0F /* Pitch for Y, UV Planes, unit=word */ #define Index_VI_Disp_Y_Buf_Pitch_Low 0x10 #define Index_VI_Disp_UV_Buf_Pitch_Low 0x11 #define Index_VI_Disp_Y_UV_Buf_Pitch_Middle 0x12 /* What is this ? */ #define Index_VI_Disp_Y_Buf_Preset_Low 0x13 #define Index_VI_Disp_Y_Buf_Preset_Middle 0x14 #define Index_VI_UV_Buf_Preset_Low 0x15 #define Index_VI_UV_Buf_Preset_Middle 0x16 #define Index_VI_Disp_Y_UV_Buf_Preset_High 0x17 /* Scaling control registers */ #define Index_VI_Hor_Post_Up_Scale_Low 0x18 #define Index_VI_Hor_Post_Up_Scale_High 0x19 #define Index_VI_Ver_Up_Scale_Low 0x1A #define Index_VI_Ver_Up_Scale_High 0x1B #define Index_VI_Scale_Control 0x1C /* Playback line buffer control */ #define Index_VI_Play_Threshold_Low 0x1D #define Index_VI_Play_Threshold_High 0x1E #define Index_VI_Line_Buffer_Size 0x1F /* Destination color key */ #define Index_VI_Overlay_ColorKey_Red_Min 0x20 #define Index_VI_Overlay_ColorKey_Green_Min 0x21 #define Index_VI_Overlay_ColorKey_Blue_Min 0x22 #define Index_VI_Overlay_ColorKey_Red_Max 0x23 #define Index_VI_Overlay_ColorKey_Green_Max 0x24 #define Index_VI_Overlay_ColorKey_Blue_Max 0x25 /* Source color key, YUV color space */ #define Index_VI_Overlay_ChromaKey_Red_Y_Min 0x26 #define Index_VI_Overlay_ChromaKey_Green_U_Min 0x27 #define Index_VI_Overlay_ChromaKey_Blue_V_Min 0x28 #define Index_VI_Overlay_ChromaKey_Red_Y_Max 0x29 #define Index_VI_Overlay_ChromaKey_Green_U_Max 0x2A #define Index_VI_Overlay_ChromaKey_Blue_V_Max 0x2B /* Contrast enhancement and brightness control */ #define Index_VI_Contrast_Factor 0x2C #define Index_VI_Brightness 0x2D #define Index_VI_Contrast_Enh_Ctrl 0x2E #define Index_VI_Key_Overlay_OP 0x2F #define Index_VI_Control_Misc0 0x30 #define Index_VI_Control_Misc1 0x31 #define Index_VI_Control_Misc2 0x32 /* Subpicture registers */ #define Index_VI_SubPict_Buf_Start_Low 0x33 #define Index_VI_SubPict_Buf_Start_Middle 0x34 #define Index_VI_SubPict_Buf_Start_High 0x35 /* What is this ? */ #define Index_VI_SubPict_Buf_Preset_Low 0x36 #define Index_VI_SubPict_Buf_Preset_Middle 0x37 /* Subpicture pitch, unit=16 bytes */ #define Index_VI_SubPict_Buf_Pitch 0x38 /* Subpicture scaling control */ #define Index_VI_SubPict_Hor_Scale_Low 0x39 #define Index_VI_SubPict_Hor_Scale_High 0x3A #define Index_VI_SubPict_Vert_Scale_Low 0x3B #define Index_VI_SubPict_Vert_Scale_High 0x3C #define Index_VI_SubPict_Scale_Control 0x3D /* (0x40 = enable/disable subpicture) */ /* Subpicture line buffer control */ #define Index_VI_SubPict_Threshold 0x3E /* What is this? */ #define Index_VI_FIFO_Max 0x3F /* Subpicture palette; 16 colors, total 32 bytes address space */ #define Index_VI_SubPict_Pal_Base_Low 0x40 #define Index_VI_SubPict_Pal_Base_High 0x41 /* I wish I knew how to use these ... */ #define Index_MPEG_Read_Ctrl0 0x60 /* MPEG auto flip */ #define Index_MPEG_Read_Ctrl1 0x61 /* MPEG auto flip */ #define Index_MPEG_Read_Ctrl2 0x62 /* MPEG auto flip */ #define Index_MPEG_Read_Ctrl3 0x63 /* MPEG auto flip */ /* MPEG AutoFlip scale */ #define Index_MPEG_Ver_Up_Scale_Low 0x64 #define Index_MPEG_Ver_Up_Scale_High 0x65 #define Index_MPEG_Y_Buf_Preset_Low 0x66 #define Index_MPEG_Y_Buf_Preset_Middle 0x67 #define Index_MPEG_UV_Buf_Preset_Low 0x68 #define Index_MPEG_UV_Buf_Preset_Middle 0x69 #define Index_MPEG_Y_UV_Buf_Preset_High 0x6A /* The following registers only exist on the 315/330/340 series */ /* Bit 16:24 of Y_U_V buf start address */ #define Index_VI_Y_Buf_Start_Over 0x6B #define Index_VI_U_Buf_Start_Over 0x6C #define Index_VI_V_Buf_Start_Over 0x6D #define Index_VI_Disp_Y_Buf_Pitch_High 0x6E #define Index_VI_Disp_UV_Buf_Pitch_High 0x6F /* Hue and saturation */ #define Index_VI_Hue 0x70 #define Index_VI_Saturation 0x71 #define Index_VI_SubPict_Start_Over 0x72 #define Index_VI_SubPict_Buf_Pitch_High 0x73 #define Index_VI_Control_Misc3 0x74 /* 340 and later: */ /* DDA registers 0x75 - 0xb4 */ #define Horizontal_6Tap_DDA_WeightingMatrix_Index 0x75 #define Horizontal_6Tap_DDA_WeightingMatrix_Value 0x76 #define Vertical_4Tap_DDA_WeightingMatrix_Index 0x77 #define Vertical_4Tap_DDA_WeightingMatrix_Value 0x78 #define Index_VI_Control_Misc4 0x79 #define Index_VI_SubPict_Start_Pitch_Ext 0x7a #define Index_VI_SubPict_Buf_Preset_Ext 0x7b /*MCE misc regist*/ #define Index_VI_MCE_Control_Misc1 0x8d /* threshold high 0xb5, 0xb6 */ #define Index_VI_Threshold_Ext_Low 0xb5 #define Index_VI_Threshold_Ext_High 0xb6 #define Index_VI_Line_Buffer_Size_High 0xb7 #define Index_VI_SubPict_Threshold_Ext 0xb8 #define Source_VertLine_Number_Low 0xb9 #define Source_VertLine_Number_High 0xba #define Index_VI_SubPict_Format 0xbc /* Locking Macros lightweight lock used to prevent relocking */ #define SIS_LOCK(c,f) \ if(!c->lock) { \ drmGetLock(c->fd, c->drmcontext, f); \ } \ c->lock++; #define SIS_UNLOCK(c) \ c->lock--; \ if(!c->lock) { \ drmUnlock(c->fd, c->drmcontext); \ } /* Definitions for temporary wire protocol hooks to be replaced when a HW independent libXvMC is created. */ extern Status _xvmc_create_context(Display *dpy, XvMCContext *context, int *priv_count, uint **priv_data); extern Status _xvmc_destroy_context(Display *dpy, XvMCContext *context); extern Status _xvmc_create_surface(Display *dpy, XvMCContext *context, XvMCSurface *surface, int *priv_count, uint **priv_data); extern Status _xvmc_destroy_surface(Display *dpy, XvMCSurface *surface); extern Status _xvmc_create_subpicture(Display *dpy, XvMCContext *context, XvMCSubpicture *subpicture, int *priv_count, uint **priv_data); extern Status _xvmc_destroy_subpicture(Display *dpy, XvMCSubpicture *subpicture); /* Prototypes */ void sis_free_privContext(SiSXvMCContext *pSiSXvMC); #define OverlayMapSiZe 4096 /* IO port seeting */ #define VIDEOOFFSET 0x02 #define SROFFSET 0x44 #define CROFFSET 0x54 #define outSISREG32(base,val) outl(val,base) #define inSISREG32(base) inl(base) #define outSISVidReg(base, idx, val) do { \ outb(idx,base); outb(val,(base)+1); \ } while (0) #define setreg(base,idx,data) \ do { \ outb(idx,base); \ outb(data, (base)+1); \ } while(0) #define setregmask(base,idx,data,mask) \ do { \ unsigned char __Temp; \ outb(idx,base); \ __Temp = (inb((base)+1)) & (~(mask));\ __Temp |= ((data) & (mask)); \ outb( __Temp, (base)+1); \ } while(0) #define getreg(base,idx,var) \ do { \ outb(idx, base); \ var = inb((base)+1); \ } while (0) #define outMMIO32(base,addr,val) \ *(volatile CARD32 *)(base + (addr))= (val) #define inMMIO32(base,addr)\ *(volatile CARD32 *)(base + (addr)) #if 0 typedef struct { int pixelFormat; CARD16 pitch; CARD16 origPitch; int srcOffsetX, srcOffsetY; CARD8 keyOP; CARD16 HUSF; CARD16 VUSF; CARD8 IntBit; CARD8 wHPre; float tap_scale, tap_scale_old; CARD16 srcW; CARD16 srcH; //BoxRec dstBox; CARD32 PSY; CARD32 PSV; CARD32 PSU; CARD16 SCREENheight; CARD16 lineBufSize; //DisplayModePtr currentmode; #ifdef SISMERGED CARD16 pitch2; CARD16 HUSF2; CARD16 VUSF2; CARD8 IntBit2; CARD8 wHPre2; float tap_scale2, tap_scale2_old; CARD16 srcW2; CARD16 srcH2; int srcOffsetX2, srcOffsetY2; BoxRec dstBox2; CARD32 PSY2; CARD32 PSV2; CARD32 PSU2; CARD16 SCREENheight2; CARD16 lineBufSize2; DisplayModePtr currentmode2; Bool DoFirst, DoSecond; #endif CARD8 bobEnable; CARD8 planar; CARD8 planar_shiftpitch; CARD8 contrastCtrl; CARD8 contrastFactor; CARD16 oldLine, oldtop; CARD8 (*VBlankActiveFunc)(SISPtr, SISPortPrivPtr); #if 0 CARD32 (*GetScanLineFunc)(SISPtr pSiS); #endif } SISOverlayRec, *SISOverlayPtr; #endif typedef struct { int context; unsigned long offset; unsigned long size; void *free; } drm_sis_mem_t; #define DRM_SIS_FB_ALLOC 0x04 #define DRM_SIS_FB_FREE 0x05 #define DRM_SIS_FLIP 0x08 #define DRM_SIS_FLIP_INIT 0x09 #define DRM_SIS_FLIP_FINAL 0x10 #define DRM_SIS_AGP_INIT 0x13 #define DRM_SIS_AGP_ALLOC 0x14 #define DRM_SIS_AGP_FREE 0x15 #define DRM_SIS_FB_INIT 0x16 /*******************************************************************************/ /* Motion Compensation data structure */ /*******************************************************************************/ typedef unsigned char BYTE, *LPBYTE; typedef unsigned short WORD, *LPWORD; /* * MC Only Mode structure */ /* // structure for picture layer parameter */ typedef struct { BYTE pict_type; /* D[2:0] picture coding type */ BYTE pict_struct; /* D[1:0] picture structure */ union { BYTE fix_buf; /* D0 the reference frame of the second field in P-frame when field picture */ BYTE secondfield; /* D0 second field flag, for slice layer mode */ }; BYTE decframe; /* D[2:0] current decoding buffer */ BYTE forframe; /* D[2:0] forward reference buffer */ BYTE backframe; /* D[2:0] backward reference buffer */ BYTE mb_width; /* D[6:0] mb_width - 1 */ union { BYTE mb_height; /* D[6:0] mb_height - 1 */ BYTE hreserved; /* D[7:0] reserved, for slice layer mode */ }; BYTE pfframe; /* D[2:0] page flip buffer */ BYTE showframe; /* D0 show frame or field */ BYTE topfirst; /* D0 top first or not */ BYTE top_no; /* D[3:0] frame/top field display number */ BYTE bottom_no; /* D[2:0] bottom field display number */ BYTE pic_no; /* D[3:0] picture serial number in a GOP */ BYTE Reserved; /* D[7:0] Reserved byte in 315 */ BYTE mode; /* D0 page flipping only flag */ /* D1 decoding only flag */ /* D2 check page flip buffer selection before decoding */ } PICTUREPARA, *LPPICTUREPARA; /* // structure for macroblocks in I_TYPE picture */ typedef struct _IMBHEADER { WORD cbp; /* D[5:0] coded block pattern */ WORD mc_flag; /* D0 intra macroblock */ /* D3 forward MC */ /* D2 backward MC */ BYTE mcmode; /* D[1:0] prediction type */ BYTE dcttype; /* D0 frame/field DCT type */ WORD reserved; WORD filflga; /* D[3:0] subpixel flag of the 1st MV */ WORD filflgb; /* D[3:0] subpixel flag of the 2nd MV */ WORD filflgc; /* D[3:0] subpixel flag of the 3rd MV */ WORD filflgd; /* D[3:0] subpixel flag of the 4th MV */ } IMBHEADER, *LPIMBHEADER; /* // structure for macroblocks in PB_TYPE picture */ typedef struct _MBHEADER { WORD cbp; /* D[5:0] coded block pattern */ WORD mc_flag; /* D0 intra macroblock */ /* D3 forward MC */ /* D2 backward MC */ BYTE mcmode; /* D[1:0] prediction type */ BYTE dcttype; /* D0 frame/field DCT type */ WORD reserved; WORD filflga; /* D[3:0] subpixel flag of the 1st MV */ WORD filflgb; /* D[3:0] subpixel flag of the 2nd MV */ WORD filflgc; /* D[3:0] subpixel flag of the 3rd MV */ WORD filflgd; /* D[3:0] subpixel flag of the 4th MV */ /* the 1st motion vector */ WORD forvx; /* D[10:0] x-direction vector of the 1st MV */ /* D[12:11] buffer selection of the 1st MV */ /* D15 x-direction chrominance vector /* add one flag of the 1st MV */ WORD forvy; /* D[10:0] y-direction vector of the 1st MV */ /* D15 y-direction chronminance vector add one flag of the 1st MV */ /* the 2nd motion vector */ WORD backvx; /* D[10:0] x-direction vector of the 2nd MV */ /* D[12:11] buffer selection of the 2nd MV */ /* D15 x-direction chrominance vector /* add one flag of the 2nd MV */ WORD backvy; /* D[10:0] y-direction vector of the 2nd MV */ /* D15 y-direction chronminance vector add one flag of the 2nd MV */ /* the 3rd motion vector */ WORD forbvx; /* D[10:0] x-direction vector of the 3rd MV */ /* D[12:11] buffer selection of the 3rd MV */ /* D15 x-direction chrominance vector /* add one flag of the 3rd MV */ WORD forbvy; /* D[10:0] y-direction vector of the 3rd MV */ /* D15 y-direction chronminance vector add one flag of the 3rd MV */ /* the 4th motion vector */ WORD backbvx;/* D[10:0] x-direction vector of the 4th MV */ /* D[12:11] buffer selection of the 4th MV */ /* D15 x-direction chrominance vector /* add one flag of the 4th MV */ WORD backbvy;/* D[10:0] y-direction vector of the 4th MV */ /* D15 y-direction chronminance vector add one flag of the 4th MV */ } MBHEADER, *LPMBHEADER; /*****************************************************************************\ * MPEG-releated definition * \*****************************************************************************/ /* picture coding type */ #define I_TYPE 0x1 #define P_TYPE 0x2 #define B_TYPE 0x3 /* picture structure */ #define TOP_FIELD 0x1 #define BOTTOM_FIELD 0x2 #define FRAME_PICTURE 0x3 /* macroblock type */ #define MB_INTRA 1 #define MB_PATTERN 2 #define MB_BACKWARD 4 #define MB_FORWARD 8 #define MB_QUANT 16 #define MB_WEIGHT 32 #define MB_CLASS4 64 /* motion_type */ #define MC_FIELD 1 #define MC_FRAME 2 #define MC_16X8 2 #define MC_DMV 3 #define FrameBufferNum 6 #define I_BlockSize 64 /* 64 bytes */ #define BlockSize 64*2 /* 64 shorts = 128 bytes */ /*****************************************************************************\ * SiS HW-releated definition * \*****************************************************************************/ #define ADD_ONE_FLAG 0x8000 #define REFERENCE_TOP_FIELD 0x0000 #define REFERENCE_BOTTOM_FIELD 0x0001