empathicqubit/Mesen-SX
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

PPU: Fixed sprites being displayed with a 1 scanline offset

Browse source
This commit is contained in:
Sour 2019-03-02 11:15:51 -05:00
parent e321b247ac
commit b46ef705f8
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
Core/Ppu.cpp
View file

@ -143,7 +143,7 @@ void Ppu::EvaluateNextLineSprites()
uint8_t largeSprite = (highTableValue & 0x02) >> 1;
uint8_t height = _oamSizes[_oamMode][largeSprite][1] << 3;
if(y > screenY + 1 || y + height <= screenY + 1) {
if(y > screenY || y + height <= screenY) {
//Not visible on this scanline
continue;
}
@ -173,11 +173,11 @@ void Ppu::EvaluateNextLineSprites()
uint8_t yOffset;
int rowOffset;
if(info.VerticalMirror) {
yOffset = (height - 1 - (screenY + 1 - y)) & 0x07;
rowOffset = (height - 1 - (screenY + 1 - y)) >> 3;
yOffset = (height - 1 - (screenY - y)) & 0x07;
rowOffset = (height - 1 - (screenY - y)) >> 3;
} else {
yOffset = (screenY + 1 - y) & 0x07;
rowOffset = (screenY + 1 - y) >> 3;
yOffset = (screenY - y) & 0x07;
rowOffset = (screenY - y) >> 3;
}
uint8_t row = (info.TileRow + rowOffset) & 0x0F;