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ppu arch64: clear "changed" on fg/bg and handle leftovers, if any

This commit is contained in:
Sigrid Solveig Haflínudóttir 2021-12-26 14:19:02 +01:00
parent 68c3a81301
commit e488f76766
1 changed files with 6 additions and 1 deletions
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7
src/devices/ppu_aarch64.c
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@ -9,7 +9,9 @@ ppu_redraw(Ppu *p, Uint32 *screen)
Uint8 *bg = p->bg.pixels;
int i;
for(i = 0; i < p->width * p->height; i += 16, fg += 16, bg += 16, screen += 16) {
p->fg.changed = p->bg.changed = 0;
for(i = 0; i < (p->width * p->height & ~15); i += 16, fg += 16, bg += 16, screen += 16) {
uint8x16_t fg8 = vld1q_u8(fg);
uint8x16_t bg8 = vld1q_u8(bg);
uint8x16_t px8 = vbslq_u8(vceqzq_u8(fg8), bg8, fg8);
@ -21,4 +23,7 @@ ppu_redraw(Ppu *p, Uint32 *screen)
};
vst4q_u8((uint8_t*)screen, px);
}
for(; i < p->width * p->height; i++)
screen[i] = p->palette[*fg ? *fg : *bg];
}