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core, improve bg color DMA handling (and some vdp cleanup)

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kub 2024-01-28 22:34:17 +01:00
parent db1ee7a2df
commit f1dbe7642f
3 changed files with 72 additions and 63 deletions
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8
pico/draw.c
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@ -1636,7 +1636,7 @@ void BgcDMA(struct PicoEState *est)
BgcDMAsrc += xl; // HSYNC DMA
BgcDMAoffs = 0;
t = est->HighPal[Pico.video.reg[7] & 0x3f];
t = PXCONV(PicoMem.cram[Pico.video.reg[7] & 0x3f]);
while (i < len) q[i++] = t; // fill partial line with BG
if (upscale) {
@ -1737,6 +1737,9 @@ void FinalizeLine555(int sh, int line, struct PicoEState *est)
if (DrawLineDestIncrement == 0)
return;
if (est->rendstatus & PDRAW_BGC_DMA)
return BgcDMA(est);
PicoDrawUpdateHighPal();
len = 256;
@ -1747,9 +1750,6 @@ void FinalizeLine555(int sh, int line, struct PicoEState *est)
else if ((PicoIn.AHW & PAHW_SMS) && (est->Pico->video.reg[0] & 0x20))
len -= 8, ps += 8;
if (est->rendstatus & PDRAW_BGC_DMA)
return BgcDMA(est);
if ((est->rendstatus & PDRAW_SOFTSCALE) && len < 320) {
if (len >= 240 && len <= 256) {
pd += (256-len)>>1;