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sms, add vdp midframe cram change handling for 8bit renderer

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This commit is contained in:
kub 2021-10-17 22:50:07 +02:00
parent e4da4fe8b9
commit 646be42e9d
2 changed files with 43 additions and 22 deletions
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50
pico/mode4.c
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@ -465,6 +465,7 @@ static void DrawDisplayM2(int scanline)
/*===============*/
static void FinalizeLineRGB555SMS(int line);
static void FinalizeLine8bitSMS(int line);
void PicoFrameStartSMS(void)
{
@ -513,6 +514,12 @@ void PicoFrameStartSMS(void)
Pico.est.HighCol = HighColBase + screen_offset * HighColIncrement;
Pico.est.DrawLineDest = (char *)DrawLineDestBase + screen_offset * DrawLineDestIncrement;
if (FinalizeLineSMS == FinalizeLine8bitSMS) {
Pico.est.SonicPalCount = 0;
Pico.m.dirtyPal = (Pico.m.dirtyPal ? 2 : 0);
memcpy(Pico.est.SonicPal, PicoMem.cram, 0x20*2);
}
}
void PicoLineSMS(int line)
@ -557,32 +564,45 @@ static u16 tmspal[32] = {
void PicoDoHighPal555SMS(void)
{
u32 *spal=(void *)PicoMem.cram;
u32 *dpal=(void *)Pico.est.HighPal;
u32 *spal = (void *)Pico.est.SonicPal;
u32 *dpal = (void *)Pico.est.HighPal;
unsigned int cnt = Pico.est.SonicPalCount+1;
unsigned int t;
int i;
int i, j;
if (FinalizeLineSMS != FinalizeLine8bitSMS || Pico.m.dirtyPal == 2)
Pico.m.dirtyPal = 0;
Pico.m.dirtyPal = 0;
if (!(Pico.video.reg[0] & 0x4))
// use hardware palette for 16bit accurate mode
if (FinalizeLineSMS == FinalizeLineRGB555SMS)
spal = (void *)PicoMem.cram;
// fixed palette in TMS modes
if (!(Pico.video.reg[0] & 0x4)) {
spal = (u32 *)tmspal;
cnt = 1;
}
/* SMS 6 bit cram data was already converted to MD/GG format by vdp write,
* hence GG/SMS/TMS can all be handled the same here */
for (i = 0x20/2; i > 0; i--, spal++, dpal++) {
t = *spal;
for (j = cnt; j > 0; j--) {
for (i = 0x20/2; i > 0; i--, spal++, dpal++) {
t = *spal;
#if defined(USE_BGR555)
t = ((t & 0x000f000f)<< 1) | ((t & 0x00f000f0)<<2) | ((t & 0x0f000f00)<<3);
t |= (t >> 4) & 0x04210421;
t = ((t & 0x000f000f)<< 1) | ((t & 0x00f000f0)<<2) | ((t & 0x0f000f00)<<3);
t |= (t >> 4) & 0x04210421;
#elif defined(USE_BGR565)
t = ((t & 0x000f000f)<< 1) | ((t & 0x00f000f0)<<3) | ((t & 0x0f000f00)<<4);
t |= (t >> 4) & 0x08610861;
t = ((t & 0x000f000f)<< 1) | ((t & 0x00f000f0)<<3) | ((t & 0x0f000f00)<<4);
t |= (t >> 4) & 0x08610861;
#else
t = ((t & 0x000f000f)<<12) | ((t & 0x00f000f0)<<3) | ((t & 0x0f000f00)>>7);
t |= (t >> 4) & 0x08610861;
t = ((t & 0x000f000f)<<12) | ((t & 0x00f000f0)<<3) | ((t & 0x0f000f00)>>7);
t |= (t >> 4) & 0x08610861;
#endif
*dpal = t;
*dpal = t;
}
memcpy(dpal, dpal-0x20/2, 0x20*2); // for prio bit
spal += 0x20/2, dpal += 0x20/2;
}
memcpy(&Pico.est.HighPal[0x20], Pico.est.HighPal, 0x20*2); // for prio bit
Pico.est.HighPal[0xe0] = 0;
}