auto PPU::Line::renderMode7(PPU::IO::Background& self, uint8 source) -> void { //HD mode 7 support if(!ppu.hdMosaic() || !self.mosaicEnable || io.mosaic.size == 1) { if(ppu.hdScale() > 1) return renderMode7HD(self, source); } int Y = this->y; if(self.mosaicEnable) Y -= io.mosaic.size - io.mosaic.counter; int y = !io.mode7.vflip ? Y : 255 - Y; int a = (int16)io.mode7.a; int b = (int16)io.mode7.b; int c = (int16)io.mode7.c; int d = (int16)io.mode7.d; int hcenter = (int13)io.mode7.x; int vcenter = (int13)io.mode7.y; int hoffset = (int13)io.mode7.hoffset; int voffset = (int13)io.mode7.voffset; uint mosaicCounter = 1; uint mosaicPalette = 0; uint8 mosaicPriority = 0; uint16 mosaicColor = 0; auto clip = [](int n) -> int { return n & 0x2000 ? (n | ~1023) : (n & 1023); }; int originX = (a * clip(hoffset - hcenter) & ~63) + (b * clip(voffset - vcenter) & ~63) + (b * y & ~63) + (hcenter << 8); int originY = (c * clip(hoffset - hcenter) & ~63) + (d * clip(voffset - vcenter) & ~63) + (d * y & ~63) + (vcenter << 8); bool windowAbove[256]; bool windowBelow[256]; renderWindow(self.window, self.window.aboveEnable, windowAbove); renderWindow(self.window, self.window.belowEnable, windowBelow); for(int X : range(256)) { int x = !io.mode7.hflip ? X : 255 - X; int pixelX = originX + a * x >> 8; int pixelY = originY + c * x >> 8; int tileX = pixelX >> 3 & 127; int tileY = pixelY >> 3 & 127; bool outOfBounds = (pixelX | pixelY) & ~1023; uint15 tileAddress = tileY * 128 + tileX; uint15 paletteAddress = ((pixelY & 7) << 3) + (pixelX & 7); uint8 tile = io.mode7.repeat == 3 && outOfBounds ? 0 : ppu.vram[tileAddress] >> 0; uint8 palette = io.mode7.repeat == 2 && outOfBounds ? 0 : ppu.vram[tile << 6 | paletteAddress] >> 8; uint8 priority; if(source == Source::BG1) { priority = self.priority_enabled[0] ? self.priority[0] : 0; } else if(source == Source::BG2) { priority = self.priority_enabled[palette >> 7] ? self.priority[palette >> 7] : 0; palette &= 0x7f; } if(--mosaicCounter == 0) { mosaicCounter = self.mosaicEnable ? io.mosaic.size : 1; mosaicPalette = palette; mosaicPriority = priority; if(io.col.directColor && source == Source::BG1) { mosaicColor = directColor(0, palette); } else { mosaicColor = cgram[palette]; } } if(!mosaicPalette) continue; if(self.aboveEnable && !windowAbove[X]) plotAbove(X, source, mosaicPriority, mosaicColor); if(self.belowEnable && !windowBelow[X]) plotBelow(X, source, mosaicPriority, mosaicColor); } }