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SBSPSS/source/system/vid.cpp
Daveo 74f055d6d9
2001-07-05 20:07:15 +00:00

444 lines
11 KiB
C++
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/******************/
/*** GFx System ***/
/******************/
#include "system/global.h"
#include "system\vid.h"
#include "gfx\prim.h"
#include "fileio\fileio.h"
/*****************************************************************************/
#define MaxVBFuncs 4
/*****************************************************************************/
static void (*VbFunc)(void);
static VbFuncType VbFuncList[MaxVBFuncs];
static u32 FrameCounter=0,TickCount=0,TickBuffer[2];
static u32 s_lastFrameCounter=0,s_vblsThisFrame=0;
static sVidScreen Screen[2];
static int ScreenXOfs=0,ScreenYOfs=0;
static int ScreenW, ScreenH;
static RECT ScreenRect;
/*static*/ int FrameFlipFlag=0;
static int ClearScreen=0;
static u8 *ScreenImage=0;
static const CVECTOR s_defClearCol = {0, 0, 0};
/*****************************************************************************/
/*** Loading Icon Cack *******************************************************/
/*****************************************************************************/
POLY_FT4 LoadPoly;
static int LoadX=430;
static int LoadY=161;
static int LoadHalfWidth;
static int LoadIconSide;
static int DrawLoadIcon=0;
static RECT LoadBackRect;
static int LoadBackY;
static int LoadTime=0;
/*****************************************************************************/
// Altered to keep aspect ratio
s8 LoadTab[]=
{
21,21,21,21,20,20,20,20,19,19,19,18,18,17,17,16,15,14,13,12,11,10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,17,18,18,19,19,19,20,20,20,20,20,21
};
const int LoadTabSize=sizeof(LoadTab)/sizeof(s8);
/*****************************************************************************/
void LoadingIcon()
{
int Dst;
int rgb;
POLY_FT4 *PolyPtr=&LoadPoly;
Dst=LoadTab[LoadTime];
PolyPtr->x0=PolyPtr->x2=LoadX-Dst+LoadHalfWidth+2;
PolyPtr->x1=PolyPtr->x3=LoadX+Dst+LoadHalfWidth+2;
rgb=128-(LoadTab[(LoadTime+LoadTabSize/2)%LoadTabSize]*3);
setRGB0(PolyPtr,rgb,rgb,rgb);
MoveImage(&LoadBackRect,LoadX,LoadY+LoadBackY);
PutDrawEnv(&Screen[FrameFlipFlag^1].Draw);
DrawPrim(PolyPtr);
LoadTime++;
if (LoadTime>=LoadTabSize) LoadTime=0;
// if(LoadTime==LoadTabSize/2) LoadIconSide^=1;
}
/*****************************************************************************/
void SetUpLoadIcon(void *_fh)
{
sFrameHdr *fh=(sFrameHdr*)_fh;
setPolyFT4(&LoadPoly);
setXYWH(&LoadPoly,LoadX,LoadY,fh->W,fh->H);
setUVWH(&LoadPoly,fh->U,fh->V,fh->W,fh->H);
LoadPoly.tpage=fh->TPage;
LoadPoly.clut=fh->Clut;
LoadHalfWidth=fh->W/2;
setRECT(&LoadBackRect,LoadX,LoadY+(LoadBackY^256),fh->W+4,fh->H+4);
}
/*****************************************************************************/
void StartLoad(int _loadX,int _loadY)
{
LoadX=_loadX;
LoadY=_loadY;
Screen[0].Draw.isbg=Screen[1].Draw.isbg=0;
PutDrawEnv(&Screen[FrameFlipFlag^1].Draw);
PutDispEnv(&Screen[FrameFlipFlag].Disp);
LoadBackY=Screen[FrameFlipFlag^1].Disp.disp.y;
LoadTime=0;
DrawLoadIcon=1;
LoadIconSide=0;
}
/*****************************************************************************/
void StopLoad()
{
while(LoadTime)
{
VSync(0);
}
Screen[0].Draw.isbg=Screen[1].Draw.isbg=1;
DrawLoadIcon=0;
}
/*****************************************************************************/
/*** VSync *******************************************************************/
/*****************************************************************************/
extern "C"
{
static void VidVSyncCallback()
{
int i;
FrameCounter++;
TickCount++;
if (DrawLoadIcon) LoadingIcon();
if (VbFunc)
{
VbFunc();
VbFunc = NULL;
}
for (i=0; i< MaxVBFuncs; i++) if (VbFuncList[i]) VbFuncList[i]();
}
}
/*****************************************************************************/
void VidAddVSyncFunc(VbFuncType v)
{
int i;
for (i=0; i<MaxVBFuncs; i++)
{
if (!VbFuncList[i])
{
VbFuncList[i] = v;
return;
}
}
ASSERT(!"Number of Vsync Funcs == MaxVBFuncs");
}
/*****************************************************************************/
void VidRemoveVSyncFunc(VbFuncType v)
{
int i;
for (i=0; i<MaxVBFuncs; i++)
{
if (VbFuncList[i] == v)
{
VbFuncList[i] = NULL;
return;
}
}
ASSERT(!"VSYNC Func Not Found");
}
/*****************************************************************************/
/*****************************************************************************/
/*****************************************************************************/
int VidGetXOfs() {return(ScreenXOfs);}
int VidGetYOfs() {return(ScreenYOfs);}
void VidSetXYOfs(int x,int y) {ScreenXOfs = x; ScreenYOfs = y;}
int VidGetScrW() {return(ScreenW);}
int VidGetScrH() {return(ScreenH);}
sVidScreen *VidGetScreen() {return &Screen[FrameFlipFlag];}
sVidScreen *VidGetDispScreen() {return (VidGetScreen());}
sVidScreen *VidGetDrawScreen() {return &Screen[FrameFlipFlag^1];}
u32 VidGetFrameCount() {return(FrameCounter);}
u32 VidGetTickCount() {return(TickBuffer[FrameFlipFlag^1]);}
int VidGetVblsThisFrame() {return s_vblsThisFrame;}
void SetScreenImage(u8 *Ptr) {ScreenImage=Ptr;}
u8 *GetScreenImage() {return ScreenImage;}
void ClearScreenImage() {ScreenImage=0;}
/*****************************************************************************/
void ClearVRam()
{
#if defined(__VERSION_DEBUG__) && !defined(__USER_CDBUILD__)
RECT Rect;
//Clear All Videoram
setRECT(&Rect,INGAME_SCREENW,0,1024-INGAME_SCREENW,512);
ClearImage(&Rect,0,0,0);
int X;
for (X=0;X<16;X++)
{
u8 C0=0xff*(X&1);
DrawSync(0); setRECT(&Rect,X*64, 0,1024/16,256); ClearImage(&Rect,C0,0,0xff-C0);
DrawSync(0); setRECT(&Rect,X*64,256,1024/16,256); ClearImage(&Rect,0xff-C0,0,C0);
}
#endif
}
/*****************************************************************************/
void VidScrOn()
{
Screen[0].Draw.isbg = ClearScreen;
Screen[1].Draw.isbg = ClearScreen;
VSync(0); // wait for V-BLANK
SetDispMask(1); // display on
}
/*****************************************************************************/
void VidSetDrawEnv()
{
int x = VidGetScrW();
int y = VidGetScrH();
SetDefDrawEnv( &Screen[0].Draw, 0, 0, x, y );
SetDefDispEnv( &Screen[0].Disp, 0, y, x, y );
SetDefDrawEnv( &Screen[1].Draw, 0, y, x, y );
SetDefDispEnv( &Screen[1].Disp, 0, 0, x, y );
Screen[0].Draw.isbg = ClearScreen;
Screen[1].Draw.isbg = ClearScreen;
Screen[0].Draw.dtd = 1;
Screen[1].Draw.dtd = 1;
VidSetClearColor( s_defClearCol );
SetDrawEnv( &Screen[0].Draw.dr_env, &Screen[0].Draw );
SetDrawEnv( &Screen[1].Draw.dr_env, &Screen[1].Draw );
}
/*****************************************************************************/
void VidSetClearColor( const CVECTOR & col )
{
Screen[0].Draw.r0 = Screen[1].Draw.r0 = col.r;
Screen[0].Draw.g0 = Screen[1].Draw.g0 = col.g;
Screen[0].Draw.b0 = Screen[1].Draw.b0 = col.b;
}
/*****************************************************************************/
void VidSetClearScreen(int Flag)
{
ClearScreen = Flag;
VidSetDrawEnv();
}
/*****************************************************************************/
void VidSetRes(int x, int y)
{
ASSERT( y == 256 );
if ((VidGetScrW() != x) || (VidGetScrH() != y))
{
RECT clrRect;
ScreenW=x;
ScreenH=y;
VidSetDrawEnv();
SetGeomOffset( (x / 2), (y / 2) );
}
}
/*****************************************************************************/
/*****************************************************************************/
/*****************************************************************************/
void VidInit()
{
// Wap up a loading screen
//u8 *screenData=CFileIO::loadFile(SCREENS_LOADING_GFX,"Loading Screen");
// SetScreenImage(screenData);
// VidSetXYOfs( ScreenXOfs, ScreenYOfs );
SetDispMask(0);
#if defined(__TERRITORY_USA__) || defined(__TERRITORY_JAP__)
SetVideoMode( MODE_NTSC );
#else
SetVideoMode( MODE_PAL );
#endif
VSync(0);
VSync(0);
ResetGraph(0);
SetGraphDebug(0);
ClearVRam();
InitGeom();
SetGeomScreen(GEOM_SCREEN_H);
VidSetRes( INGAME_SCREENW, INGAME_SCREENH);
DrawSync(0);
VidSwapDraw();
DrawSync(0);
VidSwapDraw();
DrawSync(0);
SetScreenImage(0);
// MemFree(screenData);
VidScrOn();
// Init VBL
VbFunc = NULL;
for (int i=0; i<MaxVBFuncs; i++) VbFuncList[i] = NULL;
VSyncCallback( VidVSyncCallback );
}
/*****************************************************************************/
#ifdef __USER_paul__
int ScreenClipBox=1;
#else
int ScreenClipBox=0;
#endif
void VidSwapDraw()
{
DRAWENV *Draw;
DISPENV *Disp;
int LastFrame=FrameFlipFlag;
int ScrH=VidGetScrH()*FrameFlipFlag;
FrameFlipFlag^=1;
TickBuffer[FrameFlipFlag]=TickCount; TickCount=0;
Draw=&Screen[FrameFlipFlag].Draw;
Disp=&Screen[FrameFlipFlag].Disp;
Disp->disp.x=0;
Disp->disp.y=ScrH;
Disp->disp.w=ScreenW;
Disp->disp.h=ScreenH;
Disp->screen.x=ScreenXOfs;
Disp->screen.y=ScreenYOfs;
Disp->screen.w=256;
Disp->screen.h=256;
PutDispEnv(Disp);
PutDrawEnv(Draw);
// If set, load background screen
if (ScreenImage)
{
LoadImage(&Screen[LastFrame].Disp.disp ,(u_long*)ScreenImage);
DrawSync(0);
}
if(ScreenClipBox==1)
{
DrawLine(15,25,ScreenW-15,25,255,0,0,0);
DrawLine(15,ScreenH-25,ScreenW-15,ScreenH-25,255,0,0,0);
DrawLine(15,25,15,ScreenH-25,255,0,0,0);
DrawLine(ScreenW-15,25,ScreenW-15,ScreenH-25,255,0,0,0);
DrawLine(0,0,511,0,0,255,0,0);
DrawLine(0,255,511,255,0,255,0,0);
DrawLine(0,0,0,255,0,255,0,0);
DrawLine(511,0,511,255,0,255,0,0);
}
if(ScreenClipBox==2)
{
POLY_F4 *f4;
f4=GetPrimF4();
setXYWH(f4,0,0,ScreenW,20);
setRGB0(f4,50,50,50);
AddPrimToList(f4,0);
f4=GetPrimF4();
setXYWH(f4,0,ScreenH-20,ScreenW,20);
setRGB0(f4,50,50,50);
AddPrimToList(f4,0);
f4=GetPrimF4();
setXYWH(f4,ScreenW-10,20,10,ScreenH-40);
setRGB0(f4,50,50,50);
AddPrimToList(f4,0);
f4=GetPrimF4();
setXYWH(f4,0,20,10,ScreenH-40);
setRGB0(f4,50,50,50);
AddPrimToList(f4,0);
}
// How many frames since we last flipped the display?
int fc=FrameCounter;
s_vblsThisFrame=fc-s_lastFrameCounter;
s_lastFrameCounter=fc;
// Can get 0 vbls during start up, and it breaks things
if(s_vblsThisFrame==0)
{
s_vblsThisFrame=1;
}
}
/*****************************************************************************/
/*** VRAM VIEWER *************************************************************/
/*****************************************************************************/
#define UseVRamViewer
#ifdef UseVRamViewer
#include "pad\pads.H"
void VRamViewer()
{
bool Done=0;
sVidScreen *Scr=VidGetScreen();
u16 Pad;
int OldX=Scr->Disp.disp.x,OldY=Scr->Disp.disp.y;
while(!Done)
{
PadUpdate();
DbgPollHost();
Pad=PadGetHeld(0);
#ifdef __USER_paul__
// my finger was hurting..
if((PadGetDown(0) & PAD_SELECT)) Done=1;
#else
if(!(Pad & PAD_SELECT)) Done=1;
#endif
if(Pad&PAD_LEFT) if(Scr->Disp.disp.x) Scr->Disp.disp.x--;
if(Pad&PAD_RIGHT) if(Scr->Disp.disp.x<1024-ScreenW) Scr->Disp.disp.x++;
if(Pad&PAD_UP) if(Scr->Disp.disp.y) Scr->Disp.disp.y--;
if(Pad&PAD_DOWN) if(Scr->Disp.disp.y<512-ScreenH) Scr->Disp.disp.y++;
PutDispEnv(&Scr->Disp);
PutDrawEnv(&Scr->Draw);
}
Scr->Disp.disp.x=OldX;
Scr->Disp.disp.y=OldY;
}
#endif
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