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https://github.com/RaySollium99/picodrive.git
synced 2025-09-06 07:38:05 -04:00
overdraw eliminated in AS mode
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@519 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
e352c3af64
commit
97a7f774d3
3 changed files with 19 additions and 25 deletions
25
Pico/Draw.c
25
Pico/Draw.c
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@ -628,7 +628,7 @@ last_cut_tile:
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// Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size
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// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8
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static void DrawSprite(int *sprite, int sh, int as)
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static void DrawSprite(int *sprite, int sh)
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{
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int width=0,height=0;
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int row=0,code=0;
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@ -657,7 +657,7 @@ static void DrawSprite(int *sprite, int sh, int as)
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delta<<=4; // Delta of address
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pal=(code>>9)&0x30;
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pal|=((sh|as)<<6);
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pal|=sh<<6;
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if (sh && (code&0x6000) == 0x6000) {
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if(code&0x0800) fTileFunc=TileFlipSH_noop;
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@ -1085,7 +1085,7 @@ static void DrawAllSprites(int prio, int sh)
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{
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int rs = rendstatus, scan = DrawScanline;
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unsigned char *p;
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int cnt, as;
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int cnt;
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if (rs & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {
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//elprintf(EL_STATUS, "PrepareSprites(%i)", (rs>>4)&1);
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@ -1097,15 +1097,14 @@ static void DrawAllSprites(int prio, int sh)
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if (cnt == 0) return;
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p = &HighLnSpr[scan][2];
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as = (rs & PDRAW_ACC_SPRITES) ? 1 : 0;
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// Go through sprites backwards:
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for (cnt--; cnt >= 0; cnt--)
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{
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int offs;
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if ((p[cnt] >> 7) != prio && !as) continue;
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if ((p[cnt] >> 7) != prio) continue;
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offs = (p[cnt]&0x7f) * 2;
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DrawSprite(HighPreSpr + offs, sh, as);
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DrawSprite(HighPreSpr + offs, sh);
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}
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}
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@ -1331,7 +1330,7 @@ static int DrawDisplay(int sh, int as)
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DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh|as);
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} else
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DrawLayer(0|((sh|as)<<1), HighCacheA, 0, maxcells);
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if ((rendstatus & PDRAW_HAVE_LO_SPR) || as)
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if (rendstatus & PDRAW_HAVE_LO_SPR)
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DrawAllSpritesLoPri(0, sh);
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if (HighCacheB[0]) DrawTilesFromCache(HighCacheB, sh, maxw);
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@ -1366,12 +1365,7 @@ PICO_INTERNAL void PicoFrameStart(void)
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if (PicoOpt & POPT_ACC_SPRITES)
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rendstatus |= PDRAW_ACC_SPRITES;
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if ((Pico.video.reg[12]&6) == 6) {
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rendstatus |= PDRAW_INTERLACE; // interlace mode
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DrawAllSpritesLoPri =
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DrawAllSpritesHiPri = DrawAllSpritesInterlace;
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}
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else if (sh)
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if (sh)
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{
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DrawAllSpritesLoPri = DrawAllSprites;
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DrawAllSpritesHiPri = DrawSpritesSHi;
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@ -1383,6 +1377,11 @@ PICO_INTERNAL void PicoFrameStart(void)
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}
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if (rendstatus & PDRAW_ACC_SPRITES)
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DrawAllSpritesHiPri = DrawSpritesHiAS;
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if ((Pico.video.reg[12]&6) == 6) {
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rendstatus |= PDRAW_INTERLACE; // interlace mode
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DrawAllSpritesLoPri =
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DrawAllSpritesHiPri = DrawAllSpritesInterlace;
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}
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if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed
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16
Pico/Draw.s
16
Pico/Draw.s
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@ -1163,17 +1163,12 @@ das_no_prep:
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@ time to do some real work
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stmfd sp!, {r4-r11,lr}
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ldr r4, =rendstatus
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mov r12,#0xff
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ldr r4, [r4]
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strb r12,[r2,#1] @ set end marker
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add r10,r2, #2
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add r10,r10,r3 @ r10=HighLnSpr end
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mov r8, r1, lsl #4
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tst r4, #PDRAW_ACC_SPRITES
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orrne r8, r8, #1
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str r8, [sp, #-4] @ no calls after this point
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str r1, [sp, #-4] @ no calls after this point
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.if OVERRIDE_HIGHCOL
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ldr r11,=HighCol
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@ -1196,7 +1191,7 @@ DrawSprite: @ was: unsigned int *sprite, int sh, int acc_sprites
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mov r2, r0, lsr #7
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cmp r0, #0xff
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ldmeqfd sp!, {r4-r11,pc} @ end of list
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cmp r2, r8, lsr #5
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cmp r2, r8, lsr #1
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bne DrawSprite @ wrong priority
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and r0, r0, #0x7f
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add r0, r1, r0, lsl #3
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@ -1220,7 +1215,7 @@ DrawSprite: @ was: unsigned int *sprite, int sh, int acc_sprites
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mov r2, r9, asr #16 @ r2=sx
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mov r9, r9, lsl #16
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mov r9, r9, lsr #16
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orr r9, r9, r8, lsl #27 @ r9=code|sh[31]|as[27]
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orr r9, r9, r8, lsl #31 @ r9=code|sh[31]
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tst r9, #0x1000
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movne r4, r5, lsl #3
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@ -1242,11 +1237,10 @@ DrawSprite: @ was: unsigned int *sprite, int sh, int acc_sprites
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mov r5, r5, lsl #4 @ delta<<=4; // Delta of address
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and r4, r9, #0x6000
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orr r9, r9, r4, lsl #16
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orr r9, r9, #0x10000000 @ r9=scc1 a??? ... <code> (s=shadow/hilight, cc=pal, a=acc_spr)
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orrs r9, r9, #0x10000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)
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orrs r3, r9, r9, lsl #4
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mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);
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orrmi r3, r3, #0x40 @ for shadow|as
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orrmi r3, r3, #0x40 @ for sh/hi
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add r6, r6, #1 @ inc now
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adds r0, r2, #0 @ mov sx to r0 and set ZV flags
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@ -375,7 +375,8 @@ char *debugString(void)
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else sprites_lo++;
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dstrp = dstr;
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sprintf(dstrp, "mode set 1: %02x spr lo: %2i, spr hi: %2i\n", (r=reg[0]), sprites_lo, sprites_hi);
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sprintf(dstrp, "mode set 1: %02x spr lo[%c]: %2i, spr hi[%c]: %2i\n", (r=reg[0]),
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rendstatus&PDRAW_HAVE_LO_SPR?'y':'n', sprites_lo, rendstatus&PDRAW_HAVE_HI_SPR?'y':'n', sprites_hi);
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dstrp+=strlen(dstrp);
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sprintf(dstrp, "display_disable: %i, M3: %i, palette: %i, ?, hints: %i\n", bit(r,0), bit(r,1), bit(r,2), bit(r,4));
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dstrp+=strlen(dstrp);
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