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vdp, fix for gfx save/load menu bg

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This commit is contained in:
kub 2020-09-21 21:02:51 +02:00
parent 8e4ab3c62c
commit e721f80136
5 changed files with 29 additions and 15 deletions
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2
pico/pico.h
View file

@ -197,7 +197,7 @@ void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned in
void vidConvCpyRGB565(void *to, void *from, int pixels);
#endif
void PicoDoHighPal555(int sh, int line, struct PicoEState *est);
// internals
// internals, NB must keep in sync with ASM draw functions
#define PDRAW_SPRITES_MOVED (1<<0) // SAT address modified
#define PDRAW_WND_DIFF_PRIO (1<<1) // not all window tiles use same priority
#define PDRAW_PARSE_SPRITES (1<<2) // SAT needs parsing

3
pico/pico_int.h
View file

@ -846,7 +846,7 @@ void ym2612_unpack_state(void);
extern unsigned SATaddr, SATmask;
static __inline void UpdateSAT(u32 a, u32 d)
{
unsigned num = (a-SATaddr) >> 3;
unsigned num = (a^SATaddr) >> 3;
Pico.est.rendstatus |= PDRAW_DIRTY_SPRITES;
if (!(a & 4) && num < 128) {
@ -876,6 +876,7 @@ void PicoVideoFIFOMode(int active, int h40);
int PicoVideoFIFOWrite(int count, int byte_p, unsigned sr_mask, unsigned sr_flags);
void PicoVideoSave(void);
void PicoVideoLoad(void);
void PicoVideoCacheSAT(void);
// misc.c
PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);

5
pico/state.c
View file

@ -710,6 +710,8 @@ int PicoStateLoadGfx(const char *fname)
areaRead(&Pico.video, 1, sizeof(Pico.video), afile);
}
areaClose(afile);
PicoVideoCacheSAT();
return 0;
}
@ -719,6 +721,7 @@ struct PicoTmp
unsigned short vram[0x8000];
unsigned short cram[0x40];
unsigned short vsram[0x40];
unsigned int satcache[0x80];
//struct PicoMisc m;
struct PicoVideo video;
@ -741,6 +744,7 @@ void *PicoTmpStateSave(void)
memcpy(t->vram, PicoMem.vram, sizeof(PicoMem.vram));
memcpy(t->cram, PicoMem.cram, sizeof(PicoMem.cram));
memcpy(t->vsram, PicoMem.vsram, sizeof(PicoMem.vsram));
memcpy(t->satcache, VdpSATCache, sizeof(VdpSATCache));
memcpy(&t->video, &Pico.video, sizeof(Pico.video));
#ifndef NO_32X
@ -763,6 +767,7 @@ void PicoTmpStateRestore(void *data)
memcpy(PicoMem.vram, t->vram, sizeof(PicoMem.vram));
memcpy(PicoMem.cram, t->cram, sizeof(PicoMem.cram));
memcpy(PicoMem.vsram, t->vsram, sizeof(PicoMem.vsram));
memcpy(VdpSATCache, t->satcache, sizeof(VdpSATCache));
memcpy(&Pico.video, &t->video, sizeof(Pico.video));
Pico.m.dirtyPal = 1;

33
pico/videoport.c
View file

@ -999,6 +999,25 @@ unsigned char PicoVideoRead8HV_L(void)
return d;
}
void PicoVideoCacheSAT(void)
{
struct PicoVideo *pv = &Pico.video;
int l;
SATaddr = ((pv->reg[5]&0x7f) << 9) | ((pv->reg[6]&0x20) << 11);
SATmask = ~0x1ff;
if (pv->reg[12]&1)
SATaddr &= ~0x200, SATmask &= ~0x200; // H40, zero lowest SAT bit
// rebuild SAT cache XXX wrong since cache and memory can differ
for (l = 0; l < 80; l++) {
((u16 *)VdpSATCache)[l*2 ] = PicoMem.vram[(SATaddr>>1) + l*4 ];
((u16 *)VdpSATCache)[l*2 + 1] = PicoMem.vram[(SATaddr>>1) + l*4 + 1];
}
Pico.est.rendstatus |= PDRAW_SPRITES_MOVED;
}
void PicoVideoSave(void)
{
struct VdpFIFO *vf = &VdpFIFO;
@ -1014,7 +1033,6 @@ void PicoVideoLoad(void)
{
struct VdpFIFO *vf = &VdpFIFO;
struct PicoVideo *pv = &Pico.video;
int l;
// convert former dma_xfers (why was this in PicoMisc anyway?)
if (Pico.m.dma_xfers) {
@ -1023,17 +1041,6 @@ void PicoVideoLoad(void)
vf->fifo_total = Pico.m.dma_xfers;
Pico.m.dma_xfers = 0;
}
SATaddr = ((pv->reg[5]&0x7f) << 9) | ((pv->reg[6]&0x20) << 11);
SATmask = ~0x1ff;
if (pv->reg[12]&1)
SATaddr &= ~0x200, SATmask &= ~0x200; // H40, zero lowest SAT bit
// rebuild SAT cache XXX wrong since cache and memory can differ
for (l = 0; l < 80; l++) {
*((u16 *)VdpSATCache + 2*l ) = PicoMem.vram[(SATaddr>>1) + l*4 ];
*((u16 *)VdpSATCache + 2*l+1) = PicoMem.vram[(SATaddr>>1) + l*4 + 1];
}
PicoVideoCacheSAT();
}
// vim:shiftwidth=2:ts=2:expandtab

1
platform/common/emu.c
View file

@ -1219,6 +1219,7 @@ void emu_cmn_forced_frame(int no_scale, int do_emu)
PicoDrawSetOutFormat(PDF_RGB555, 1);
Pico.m.dirtyPal = 1;
Pico.est.rendstatus |= PDRAW_DIRTY_SPRITES;
if (do_emu)
PicoFrame();
else