172 lines
4.3 KiB
C++
172 lines
4.3 KiB
C++
///**********************/
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/*** Psx Prim Stuff ***/
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/**********************/
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#include "system\global.h"
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#include "gfx\TPage.h"
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#include "gfx\AnimTex.h"
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#include "gfx\Prim.h"
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#include "system\vid.h"
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/*****************************************************************************/
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sOT *OtList[2],*OtPtr;
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u32 DmaStart[2];
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u8 *PrimBuffer[2],*PrimListStart,*PrimListEnd;
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u8 *CurrPrim,*EndPrim;
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int PrimFlipFlag;
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/*****************************************************************************/
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void PrimInit()
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{
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// Alloc Lists
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OtList[0]=(sOT*)MemAlloc(OTLIST_SIZE*2, "-Ot-");
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OtList[1]=OtList[0]+MAX_OT;
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PrimBuffer[0]=(u8*)MemAlloc(PRIMPOOL_SIZE*2, "Prim");
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PrimBuffer[1]=PrimBuffer[0]+(PRIMPOOL_SIZE);
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PrimFlipFlag=0;
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OtPtr=(sOT*)OtList[PrimFlipFlag];
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CurrPrim=(u8*)PrimBuffer[PrimFlipFlag];
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EndPrim=CurrPrim+PRIMPOOL_SIZE;
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PrimListStart=PrimBuffer[0];
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PrimListEnd=PrimListStart+(PRIMPOOL_SIZE*2);
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InitOTagR(OtList[0],MAX_OT);
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InitOTagR(OtList[1],MAX_OT);
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}
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/*****************************************************************************/
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void PrimDisplay()
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{
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while(DrawSync(1));
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if ((int)CurrPrim>=(int)EndPrim)
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{
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ASSERT(!"PRIM OVERFLOW");
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}
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CAnimTex::AnimateTex();
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CPakTex::DMAPakTex();
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UnlinkOTagR(OtPtr, MAX_OT, &DmaStart[PrimFlipFlag]);
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#ifdef USE_NTAGS
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DrawOTag((u32*)&DmaStart[PrimFlipFlag]);
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#else
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DrawOTag(OtPtr+(MAX_OT-1));
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#endif
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PrimFlipFlag^=1;
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OtPtr=(sOT*)OtList[PrimFlipFlag];
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CurrPrim=(u8*)PrimBuffer[PrimFlipFlag];
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EndPrim=CurrPrim+(PRIMPOOL_SIZE);
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ResetOTagR(OtPtr,MAX_OT);
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}
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/*****************************************************************************/
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void FlushPrimPool()
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{
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OtPtr=(sOT*)OtList[PrimFlipFlag];
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CurrPrim=(u8*)PrimBuffer[PrimFlipFlag];
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EndPrim=CurrPrim+(PRIMPOOL_SIZE);
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ResetOTagR(OtPtr,MAX_OT);
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}
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/*** Clipping ****************************************************************/
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void PrimClip(RECT *R, u32 Depth)
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{
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DR_AREA *CPtr=(DR_AREA*)CurrPrim;
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RECT Real;
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sVidScreen *Scr=VidGetDrawScreen();
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Real=*R;
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CurrPrim+=sizeof(DR_AREA);
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Real.x+=Scr->Draw.clip.x;
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Real.y+=Scr->Draw.clip.y;
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int xLimit=VidGetScrW();
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int yLimit=((FrameFlipFlag^1)+1)*VidGetScrH();
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if(Real.x+Real.w>xLimit)Real.w=xLimit-Real.x;
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if(Real.y+Real.h>yLimit)Real.h=yLimit-Real.y;
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SetDrawArea(CPtr,&Real);
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AddPrimToList(CPtr,Depth);
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};
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/*---------------------------------------------------------------------------*/
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void PrimFullScreen(int Depth)
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{
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RECT FullScreenRect={0,0,VidGetScrW(),VidGetScrH()};
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PrimClip(&FullScreenRect,Depth);
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}
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/*****************************************************************************/
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/*** NTag Functions **********************************************************/
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/*****************************************************************************/
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#ifdef USE_NTAGS
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void ClearNTag(sOT *Ptr, long Count)
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{
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for (; Count; Ptr++,Count--) Ptr->FirstPrim = NULL;
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}
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/*****************************************************************************/
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void UnlinkNTag(sOT *Ptr, long Count, u32 *StartOt)
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{
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u32 *Tag;
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for (; Count; Ptr++,Count--)
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{
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if ((Tag = Ptr->FirstPrim) == NULL) continue;
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setaddr(StartOt, Tag);
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StartOt = Ptr->LastPrim;
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Ptr->FirstPrim = NULL; // Reset while Im at it!
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}
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termPrim(StartOt);
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}
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/*****************************************************************************/
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void UnlinkNTagR(sOT *Ptr, long Count, u32 *StartOt)
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{
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u32 *Tag;
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Ptr+=Count-1;
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for (; Count; Ptr--,Count--)
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{
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if ((Tag = Ptr->FirstPrim) == NULL) continue;
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setaddr(StartOt, Tag);
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StartOt = Ptr->LastPrim;
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Ptr->FirstPrim = NULL; // Reset while Im at it!
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}
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termPrim(StartOt);
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}
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#endif
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/*****************************************************************************/
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LINE_F2 *DrawLine(int _x0,int _y0,int _x1,int _y1,int _r,int _g,int _b,int _ot)
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{
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LINE_F2 *lf2=GetPrimLF2();
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lf2->x0=_x0;
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lf2->y0=_y0;
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lf2->x1=_x1;
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lf2->y1=_y1;
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setRGB0(lf2,_r,_g,_b);
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AddPrimToList(lf2,_ot);
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return lf2;
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}
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/*****************************************************************************/
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LINE_G2 *DrawGLine(int _x0,int _y0,int _x1,int _y1,int _r1,int _g1,int _b1,int _r2,int _g2,int _b2,int _ot)
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{
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LINE_G2 *lg2=GetPrimLG2();
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lg2->x0=_x0;
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lg2->y0=_y0;
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lg2->x1=_x1;
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lg2->y1=_y1;
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setRGB0(lg2,_r1,_g1,_b1);
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setRGB1(lg2,_r2,_g2,_b2);
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AddPrimToList(lg2,_ot);
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return lg2;
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}
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/*****************************************************************************/
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