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more sms wip, better ROM detect, line callback change

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@762 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-08-27 21:44:52 +00:00
parent 200772b790
commit 87b0845f37
19 changed files with 414 additions and 186 deletions
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82
pico/draw.c
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@ -40,7 +40,7 @@ unsigned char *HighCol=DefHighCol;
#else
unsigned char HighCol[8+320+8];
#endif
unsigned short DefOutBuff[320*2];
static unsigned int DefOutBuff[320*2/2];
void *DrawLineDest=DefOutBuff; // pointer to dest buffer where to draw this line to
static int HighCacheA[41+1]; // caches for high layers
@ -1269,7 +1269,7 @@ static void FinalizeLine8bit(int sh)
int len, rs = rendstatus;
static int dirty_count;
if (!sh && Pico.m.dirtyPal == 1 && DrawScanline < 222)
if (!sh && Pico.m.dirtyPal == 1)
{
// a hack for mid-frame palette changes
if (!(rs & PDRAW_SONIC_MODE))
@ -1306,22 +1306,6 @@ static void (*FinalizeLine)(int sh);
// --------------------------------------------
static void DrawBlankedLine(void)
{
int sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?
if (PicoScanBegin != NULL)
PicoScanBegin(DrawScanline);
BackFill(Pico.video.reg[7], sh);
if (FinalizeLine != NULL)
FinalizeLine(sh);
if (PicoScanEnd != NULL)
PicoScanEnd(DrawScanline);
}
static int DrawDisplay(int sh)
{
unsigned char *sprited = &HighLnSpr[DrawScanline][0];
@ -1420,23 +1404,46 @@ PICO_INTERNAL void PicoFrameStart(void)
rendstatus = 0;
if ((Pico.video.reg[12]&6) == 6)
rendstatus |= PDRAW_INTERLACE; // interlace mode
if (Pico.video.reg[1] & 8)
rendstatus |= PDRAW_240LINES;
if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed
if (Pico.m.dirtyPal)
Pico.m.dirtyPal = 2; // reset dirty if needed
DrawScanline=0;
PrepareSprites(1);
skip_next_line=0;
}
static void PicoLine(void)
static void DrawBlankedLine(int line, int offs)
{
int sh = (Pico.video.reg[0xC]&8)>>3; // shadow/hilight?
if (PicoScanBegin != NULL)
PicoScanBegin(line + offs);
BackFill(Pico.video.reg[7], sh);
if (FinalizeLine != NULL)
FinalizeLine(sh);
if (PicoScanEnd != NULL)
PicoScanEnd(line + offs);
}
static void PicoLine(int line, int offs)
{
int sh;
if (skip_next_line>0) { skip_next_line--; return; } // skip rendering lines
if (skip_next_line > 0) {
skip_next_line--;
return;
}
sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?
DrawScanline = line;
if (PicoScanBegin != NULL)
skip_next_line = PicoScanBegin(DrawScanline);
skip_next_line = PicoScanBegin(line + offs);
// Draw screen:
BackFill(Pico.video.reg[7], sh);
@ -1447,31 +1454,40 @@ static void PicoLine(void)
FinalizeLine(sh);
if (PicoScanEnd != NULL)
skip_next_line = PicoScanEnd(DrawScanline);
skip_next_line = PicoScanEnd(line + offs);
}
void PicoDrawSync(int to, int blank_last_line)
{
for (; DrawScanline < to; DrawScanline++)
int line, offs = 0;
if (!(rendstatus & PDRAW_240LINES))
offs = 8;
for (line = DrawScanline; line < to; line++)
{
#if !CAN_HANDLE_240_LINES
if (DrawScanline >= 224) break;
if (line >= 224) break;
#endif
PicoLine();
PicoLine(line, offs);
}
#if !CAN_HANDLE_240_LINES
if (DrawScanline >= 224) { DrawScanline = 240; return; }
if (line >= 224) {
DrawScanline = 240;
return;
}
#endif
// last line
if (DrawScanline <= to)
if (line <= to)
{
if (blank_last_line)
DrawBlankedLine();
else PicoLine();
DrawScanline++;
DrawBlankedLine(line, offs);
else PicoLine(line, offs);
line++;
}
DrawScanline = line;
}
void PicoDrawSetColorFormat(int which)
@ -1483,8 +1499,10 @@ void PicoDrawSetColorFormat(int which)
case 0: FinalizeLine = FinalizeLineBGR444; break;
default:FinalizeLine = NULL; break;
}
PicoDrawSetColorFormatMode4(which);
#if OVERRIDE_HIGHCOL
if (which) HighCol=DefHighCol;
if (which)
HighCol=DefHighCol;
#endif
}