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vdp rendering, fix window with mixed prio tiles

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This commit is contained in:
kub 2020-09-25 21:16:44 +02:00
parent 30bd991f27
commit 47548249a0
3 changed files with 21 additions and 22 deletions
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24
pico/draw.c
View file

@ -549,11 +549,9 @@ static void DrawWindow(int tstart, int tend, int prio, int sh,
tilex=tstart<<1;
if (!(est->rendstatus & PDRAW_WND_DIFF_PRIO)) {
// check the first tile code
code = PicoMem.vram[nametab + tilex];
// if the whole window uses same priority (what is often the case), we may be able to skip this field
if ((code>>15) != prio) return;
if (prio && !(est->rendstatus & PDRAW_WND_HIGH_PRIO)) {
// all tiles processed in low prio pass
return;
}
tend<<=1;
@ -569,11 +567,11 @@ static void DrawWindow(int tstart, int tend, int prio, int sh,
int pal;
code = PicoMem.vram[nametab + tilex];
if (code==blank) continue;
if ((code>>15) != prio) {
est->rendstatus |= PDRAW_WND_DIFF_PRIO;
est->rendstatus |= PDRAW_WND_HIGH_PRIO;
continue;
}
if (code==blank) continue;
// Get tile address/2:
addr=(code&0x7ff)<<4;
@ -601,9 +599,8 @@ static void DrawWindow(int tstart, int tend, int prio, int sh,
int pal;
code = PicoMem.vram[nametab + tilex];
if(code==blank) continue;
if((code>>15) != prio) {
est->rendstatus |= PDRAW_WND_DIFF_PRIO;
est->rendstatus |= PDRAW_WND_HIGH_PRIO;
continue;
}
@ -616,6 +613,7 @@ static void DrawWindow(int tstart, int tend, int prio, int sh,
} else {
pal |= 0x80;
}
if(code==blank) continue;
// Get tile address/2:
addr=(code&0x7ff)<<4;
@ -1404,8 +1402,10 @@ static NOINLINE void PrepareSprites(int max_lines)
int y;
printf("c%03i: f %x c %2i/%2i w %2i: ", u, HighLnSpr[u][1],
HighLnSpr[u][0], HighLnSpr[u][3], HighLnSpr[u][2]);
for (y = 0; y < HighLnSpr[u][0]; y++)
printf(" %i", HighLnSpr[u][y+4]);
for (y = 0; y < HighLnSpr[u][0]; y++) {
int *sp = HighPreSpr + (HighLnSpr[u][y+4]&0x7f) * 2;
printf(" %i(%x/%x)", HighLnSpr[u][y+4],sp[0],sp[1]);
}
printf("\n");
}
#endif
@ -1634,7 +1634,7 @@ static int DrawDisplay(int sh)
int win=0, edge=0, hvwind=0, lflags;
int maxw, maxcells;
est->rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);
est->rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO|PDRAW_WND_HIGH_PRIO);
if (pvid->reg[12]&1) {
maxw = 328; maxcells = 40;

17
pico/draw_arm.S
View file

@ -14,7 +14,7 @@
.extern DrawStripInterlace
.equ PDRAW_SPRITES_MOVED, (1<<0)
.equ PDRAW_WND_DIFF_PRIO, (1<<1)
.equ PDRAW_WND_HIGH_PRIO, (1<<1)
.equ PDRAW_PARSE_SPRITES, (1<<2)
.equ PDRAW_DIRTY_SPRITES, (1<<4)
.equ PDRAW_PLANE_HI_PRIO, (1<<6)
@ -946,8 +946,8 @@ DrawSpritesSHi:
DrawSpriteSHi:
@ draw next sprite
ldrb r0, [r10,#-1]!
ldr r7, [sp] @ est
ldrb r0, [r10,#-1]!
ldr r1, [r7, #OFS_EST_HighPreSpr]
cmp r0, #0xff
ldmeqfd sp!, {r1,r3-r11,pc} @ end of list
@ -966,6 +966,7 @@ DrawSpriteSHi:
orr r9, r9, #0x90000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)
cmp r12,r9, lsr #28 @ sh/hi with pal3?
cmpne r3, #1 @ if not, is it hi prio?
strne r3, [sp, #4] @ reset last sprite width
bne DrawSpriteSHi @ non-operator low sprite, already drawn
ldr r3, [r0] @ sprite[0]
@ -1309,13 +1310,11 @@ DrawWindow:
@ fetch the first code now
ldrh r7, [lr, r12]
ands r6, r6, #PDRAW_WND_DIFF_PRIO
orr r6, r6, r2
eoreq r8, r2, r7, lsr #15 @ do prio bits differ?
cmpeq r8, #1
ands r6, r6, #PDRAW_WND_HIGH_PRIO
cmpeq r2, #1 @ prio && !(rendstatus & WND_HIGH_PRIO)?
ldmeqfd sp!, {r4-r11,pc} @ yes, assume that whole window uses same priority
orr r6, r6, r2
orr r6, r6, r3, lsl #8 @ shadow mode
sub r8, r1, r0
@ -1340,7 +1339,7 @@ DrawWindow:
eor r5, r6, r7, lsr #15
tst r5, #1
orrne r6, r6, #2 @ wrong pri
orrne r6, r6, #PDRAW_WND_HIGH_PRIO @ wrong pri
bne .dwloop
cmp r7, r9
@ -1406,7 +1405,7 @@ DrawWindow:
b .dw_shadow_done
.dwloop_end:
and r2, r6, #PDRAW_WND_DIFF_PRIO
and r2, r6, #PDRAW_WND_HIGH_PRIO
ldmfd sp!, {r4-r11,lr}
ldr r0, [sp]
ldr r1, [r0, #OFS_EST_rendstatus]

2
pico/pico.h
View file

@ -199,7 +199,7 @@ void vidConvCpyRGB565(void *to, void *from, int pixels);
void PicoDoHighPal555(int sh, int line, struct PicoEState *est);
// 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_WND_HIGH_PRIO (1<<1) // have window with high prio tiles
#define PDRAW_PARSE_SPRITES (1<<2) // SAT needs parsing
#define PDRAW_INTERLACE (1<<3)
#define PDRAW_DIRTY_SPRITES (1<<4) // SAT modified