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vdp rendering, sprite caching optimization

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This commit is contained in:
kub 2020-04-07 20:47:38 +02:00
parent e8204ab27b
commit b061bc166c
3 changed files with 12 additions and 7 deletions
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12
pico/draw.c
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@ -1601,7 +1601,6 @@ static int DrawDisplay(int sh)
int win=0, edge=0, hvwind=0, lflags;
int maxw, maxcells;
est->rendstatus &= ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);
est->rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);
if (pvid->reg[12]&1) {
@ -1713,6 +1712,7 @@ PICO_INTERNAL void PicoFrameStart(void)
{
int offs = 8, lines = 224;
int dirty = ((Pico.est.rendstatus & PDRAW_SONIC_MODE) || Pico.m.dirtyPal);
int sprep = Pico.est.rendstatus & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);
// prepare to do this frame
Pico.est.rendstatus = 0;
@ -1732,6 +1732,8 @@ PICO_INTERNAL void PicoFrameStart(void)
lines, (Pico.video.reg[12] & 1) ? 0 : 1);
rendstatus_old = Pico.est.rendstatus;
}
if (sprep)
Pico.est.rendstatus |= PDRAW_PARSE_SPRITES;
Pico.est.HighCol = HighColBase + offs * HighColIncrement;
Pico.est.DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
@ -1804,6 +1806,7 @@ static void PicoLine(int line, int offs, int sh, int bgc)
void PicoDrawSync(int to, int blank_last_line)
{
struct PicoEState *est = &Pico.est;
int line, offs = 0;
int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight?
int bgc = Pico.video.reg[7];
@ -1815,10 +1818,11 @@ void PicoDrawSync(int to, int blank_last_line)
if (to > 223)
to = 223;
}
if (Pico.est.DrawScanline <= to - blank_last_line)
if (est->DrawScanline <= to - blank_last_line && (est->rendstatus &
(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES|PDRAW_PARSE_SPRITES)))
PrepareSprites(to - blank_last_line + 1);
for (line = Pico.est.DrawScanline; line < to; line++)
for (line = est->DrawScanline; line < to; line++)
PicoLine(line, offs, sh, bgc);
// last line
@ -1829,7 +1833,7 @@ void PicoDrawSync(int to, int blank_last_line)
else PicoLine(line, offs, sh, bgc);
line++;
}
Pico.est.DrawScanline = line;
est->DrawScanline = line;
pprof_end(draw);
}

2
pico/draw_arm.S
View file

@ -14,7 +14,7 @@
.equ PDRAW_SPRITES_MOVED, (1<<0)
.equ PDRAW_WND_DIFF_PRIO, (1<<1)
.equ PDRAW_ACC_SPRITES, (1<<2)
.equ PDRAW_PARSE_SPRITES, (1<<2)
.equ PDRAW_DIRTY_SPRITES, (1<<4)
.equ PDRAW_PLANE_HI_PRIO, (1<<6)
.equ PDRAW_SHHI_DONE, (1<<7)

5
pico/pico.h
View file

@ -196,10 +196,11 @@ void vidConvCpyRGB565(void *to, void *from, int pixels);
#endif
void PicoDoHighPal555(int sh, int line, struct PicoEState *est);
// internals
#define PDRAW_SPRITES_MOVED (1<<0) // (asm)
#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
#define PDRAW_INTERLACE (1<<3)
#define PDRAW_DIRTY_SPRITES (1<<4) // (asm)
#define PDRAW_DIRTY_SPRITES (1<<4) // SAT modified
#define PDRAW_SONIC_MODE (1<<5) // mid-frame palette changes for 8bit renderer
#define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3)
#define PDRAW_SHHI_DONE (1<<7) // layer sh/hi already processed