mirror of
https://github.com/DerKoun/bsnes-hd.git
synced 2024-06-11 16:57:49 -04:00
460 lines
18 KiB
C++
460 lines
18 KiB
C++
#include <emulator/hdtoolkit.hpp>
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uint PPU::Line::start = 0;
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uint PPU::Line::count = 0;
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auto PPU::Line::flush() -> void {
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ppu.wsExt = HdToolkit::determineWsExt(ppu.widescreenRaw(),
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configuration.video.overscan, configuration.video.aspectCorrection);
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if (ppu.luminance != configuration.video.luminance ||
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ppu.saturation != configuration.video.saturation ||
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ppu.gamma != configuration.video.gamma) {
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uint luminance = configuration.video.luminance;
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uint saturation = configuration.video.saturation;
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uint gamma = configuration.video.gamma;
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ppu.luminance = luminance;
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ppu.saturation = saturation;
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ppu.gamma = gamma;
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for(uint l : range(16)) {
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if (ppu.lightTable[l]) delete [] ppu.lightTable[l];
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ppu.lightTable[l] = new uint32_t[32768];
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for(uint r : range(32)) {
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for(uint g : range(32)) {
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for(uint b : range(32)) {
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double dr = r * 255.0 / 31.0;
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double dg = g * 255.0 / 31.0;
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double db = b * 255.0 / 31.0;
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if(saturation != 100) {
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double satVal = saturation / 100.0;
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double grayInv = (dr + dg + db) / 3 * max(0.0, 1.0 - satVal);
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dr = dr * satVal + grayInv;
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dg = dg * satVal + grayInv;
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db = db * satVal + grayInv;
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}
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if(gamma != 100) {
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double gamVal = gamma / 100.0;
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double reciprocal = 1.0 / 127.0;
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dr = dr > 127.0 ? dr : 127.0 * pow(dr * reciprocal, gamVal);
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dg = dg > 127.0 ? dg : 127.0 * pow(dg * reciprocal, gamVal);
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db = db > 127.0 ? db : 127.0 * pow(db * reciprocal, gamVal);
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}
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if(luminance != 100) {
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double lumVal = luminance / 100.0;
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dr *= lumVal;
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dg *= lumVal;
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db *= lumVal;
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}
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double lVal = l / 15.0;
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dr *= lVal;
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dg *= lVal;
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db *= lVal;
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int ar = dr + 0.5;
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int ag = dg + 0.5;
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int ab = db + 0.5;
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if (ar > 255) ar = 255;
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if (ag > 255) ag = 255;
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if (ab > 255) ab = 255;
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if (ar < 0) ar = 0;
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if (ag < 0) ag = 0;
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if (ab < 0) ab = 0;
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ppu.lightTable[l][r << 10 | g << 5 | b << 0] = ab << 16 | ag << 8 | ar << 0;
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}
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}
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}
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}
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}
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if(Line::count) {
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if(ppu.hdScale() > 1) cacheMode7HD();
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#pragma omp parallel for if(Line::count >= 8)
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for(uint y = 0; y < Line::count; y++) {
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if(ppu.deinterlace()) {
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if(!ppu.interlace()) {
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//some games enable interlacing in 240p mode, just force these to even fields
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ppu.lines[Line::start + y].render(0);
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} else {
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//for actual interlaced frames, render both fields every farme for 480i -> 480p
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ppu.lines[Line::start + y].render(0);
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ppu.lines[Line::start + y].render(1);
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}
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} else {
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//standard 240p (progressive) and 480i (interlaced) rendering
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ppu.lines[Line::start + y].render(ppu.field());
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}
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}
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Line::start = 0;
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Line::count = 0;
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}
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}
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auto PPU::Line::cache() -> void {
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uint y = ppu.vcounter();
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if(ppu.io.displayDisable || y >= ppu.vdisp()) {
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io.displayDisable = true;
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} else {
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memcpy(&io, &ppu.io, sizeof(io));
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memcpy(&cgram, &ppu.cgram, sizeof(cgram));
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}
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if(!Line::count) Line::start = y;
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Line::count++;
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}
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auto PPU::Line::avgBgC(uint dist, uint offset) const -> uint32 {
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auto luma = ppu.lightTable[io.displayBrightness];
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uint32 t = luma[io.col.fixedColor];
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if(dist < 1) return t;
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int32 aBase = (t >> 16) & 255;
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int32 bBase = (t >> 8) & 255;
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int32 cBase = (t >> 0) & 255;
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uint32 a = aBase;
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uint32 b = bBase;
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uint32 c = cBase;
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int32 aU = 0;
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int32 bU = 0;
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int32 cU = 0;
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int32 aD = 0;
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int32 bD = 0;
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int32 cD = 0;
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int scale = ppufast.hd() ? ppufast.hdScale() : 1;
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int hdY = y * scale + offset;
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int count = 1;
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for (int i = 1; i <= dist*scale; i++) {
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int uY = (hdY-i)/scale;
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int dY = (hdY+i)/scale;
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if(uY < 0 || dY >= 224) break; /////////////////////////////
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auto uL = ppufast.lines[uY];
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auto dL = ppufast.lines[dY];
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if( io.col.halve != dL.io.col.halve || io.col.halve != uL.io.col.halve ||
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io.col.mathMode != dL.io.col.mathMode || io.col.mathMode != uL.io.col.mathMode ||
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io.col.blendMode != dL.io.col.blendMode || io.col.blendMode != uL.io.col.blendMode ||
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io.col.enable[0] != dL.io.col.enable[0] || io.col.enable[0] != uL.io.col.enable[0] ||
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io.col.enable[1] != dL.io.col.enable[1] || io.col.enable[1] != uL.io.col.enable[1] ||
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io.col.enable[2] != dL.io.col.enable[2] || io.col.enable[2] != uL.io.col.enable[2] ||
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io.col.enable[3] != dL.io.col.enable[3] || io.col.enable[3] != uL.io.col.enable[3] ||
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io.col.enable[4] != dL.io.col.enable[4] || io.col.enable[4] != uL.io.col.enable[4] ||
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io.col.enable[5] != dL.io.col.enable[5] || io.col.enable[5] != uL.io.col.enable[5] ||
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io.col.enable[6] != dL.io.col.enable[6] || io.col.enable[6] != uL.io.col.enable[6] ||
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io.bg1.tileMode != dL.io.bg1.tileMode || io.bg1.tileMode != uL.io.bg1.tileMode ||
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io.bg2.tileMode != dL.io.bg2.tileMode || io.bg2.tileMode != uL.io.bg2.tileMode ||
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io.bg3.tileMode != dL.io.bg3.tileMode || io.bg3.tileMode != uL.io.bg3.tileMode ||
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io.bg4.tileMode != dL.io.bg4.tileMode || io.bg4.tileMode != uL.io.bg4.tileMode) break;
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t = luma[uL.io.col.fixedColor];
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aU = (t >> 16) & 255;
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bU = (t >> 8) & 255;
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cU = (t >> 0) & 255;
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t = luma[dL.io.col.fixedColor];
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aD = (t >> 16) & 255;
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bD = (t >> 8) & 255;
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cD = (t >> 0) & 255;
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if (((abs(aU - aBase) + abs(bU - bBase) + abs(cU - cBase)) > 76) ||
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((abs(aD - aBase) + abs(bD - bBase) + abs(cD - cBase)) > 76)) break;
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a += aU + aD;
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b += bU + bD;
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c += cU + cD;
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count += 2;
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}
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a /= count;
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b /= count;
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c /= count;
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return (a << 16) + (b << 8) + (c << 0);
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}
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auto PPU::Line::render(bool fieldID) -> void {
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this->fieldID = fieldID;
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uint y = this->y + (!ppu.latch.overscan ? 7 : 0);
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auto hd = ppu.hd();
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auto ss = ppu.ss();
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auto scale = ppufast.hd() ? ppufast.hdScale() : 1;
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auto output = ppu.output + (!hd
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? (y * 1024 + (ppu.interlace() && field() ? 512 : 0))
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: (y * (256+2*ppu.widescreen()) * scale * scale)
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);
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auto width = (!hd
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? (!ppu.hires() ? 256 : 512)
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: ((256+2*ppu.widescreen()) * scale * scale));
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if(io.displayDisable) {
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memory::fill<uint32>(output, width);
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return;
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}
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bool hires = io.pseudoHires || io.bgMode == 5 || io.bgMode == 6;
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auto luma = ppu.lightTable[io.displayBrightness];
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auto aboveColor = luma[cgram[0]];
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uint32 *bgFixedColors = new uint32[10];
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uint32 *belowColors = new uint32[10];
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for (int i = 0; i < scale; i++) {
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bgFixedColors[i] = avgBgC(ppufast.bgGrad(), i);
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belowColors[i] = hires ? aboveColor : bgFixedColors[i];
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}
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uint xa = (hd || ss) && ppu.interlace() && field() ? (256+2*ppu.widescreen()) * scale * scale / 2 : 0;
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uint xb = !(hd || ss) ? 256 : ppu.interlace() && !ppu.field() ? (256+2*ppu.widescreen()) * scale * scale / 2 : (256+2*ppu.widescreen()) * scale * scale;
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if (hd && ppu.wsBgCol() && ppu.widescreen() > 0) {
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for(uint x = xa; x < xb; x++) {
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int cx = (x % ((256+2*ppu.widescreen()) * scale)) - (ppu.widescreen() * scale);
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if (cx >= 0 && cx <= (256 * scale)) {
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above[x] = {Source::COL, 0, aboveColor};
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below[x] = {Source::COL, 0, belowColors[x / ((256+2*ppufast.widescreen()) * scale)]};
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} else {
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above[x] = {Source::COL, 0, 0};
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below[x] = {Source::COL, 0, 0};
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}
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}
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} else {
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for(uint x = xa; x < xb; x++) {
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above[x] = {Source::COL, 0, aboveColor};
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below[x] = {Source::COL, 0, belowColors[x / ((256+2*ppufast.widescreen()) * scale)]};
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}
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}
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//hack: generally, renderBackground/renderObject ordering do not matter.
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//but for HD mode 7, a larger grid of pixels are generated, and so ordering ends up mattering.
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//as a hack for Mohawk & Headphone Jack, we reorder things for BG2 to render properly.
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//longer-term, we need to devise a better solution that can work for every game.
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renderBackground(io.bg1, Source::BG1);
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if(io.extbg == 0) renderBackground(io.bg2, Source::BG2);
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renderBackground(io.bg3, Source::BG3);
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renderBackground(io.bg4, Source::BG4);
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renderObject(io.obj);
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if(io.extbg == 1) renderBackground(io.bg2, Source::BG2);
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//TODO: move to own method
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int THRESHOLD = 4;
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y = this->y;
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uint windRad = ppufast.windRad();
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for (int offset = 0; offset < scale; offset++) {
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int oneLeft = io.window.oneLeft;
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int oneRight = io.window.oneRight;
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int twoLeft = io.window.twoLeft;
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int twoRight = io.window.twoRight;
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int hdY = y * scale + offset;
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int count = 1;
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for (int i = 1; i <= windRad*scale; i++) {
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int uY = (hdY-i)/scale;
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int dY = (hdY+i)/scale;
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if(uY <= 0 || dY >= 224) break;
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auto uL = ppufast.lines[uY];
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auto dL = ppufast.lines[dY];
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if( io.col.halve != dL.io.col.halve || io.col.halve != uL.io.col.halve ||
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io.col.mathMode != dL.io.col.mathMode || io.col.mathMode != uL.io.col.mathMode ||
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io.col.blendMode != dL.io.col.blendMode || io.col.blendMode != uL.io.col.blendMode ||
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(io.window.oneLeft >= io.window.oneRight) != (dL.io.window.oneLeft >= dL.io.window.oneRight) ||
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(io.window.oneLeft >= io.window.oneRight) != (uL.io.window.oneLeft >= uL.io.window.oneRight) ||
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(io.window.twoLeft >= io.window.twoRight) != (dL.io.window.twoLeft >= dL.io.window.twoRight) ||
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(io.window.twoLeft >= io.window.twoRight) != (uL.io.window.twoLeft >= uL.io.window.twoRight) ||
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io.col.window.oneEnable != dL.io.col.window.oneEnable ||
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io.col.window.oneEnable != uL.io.col.window.oneEnable ||
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io.col.window.oneInvert != dL.io.col.window.oneInvert ||
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io.col.window.oneInvert != uL.io.col.window.oneInvert ||
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io.col.window.twoEnable != dL.io.col.window.twoEnable ||
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io.col.window.twoEnable != uL.io.col.window.twoEnable ||
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io.col.window.twoInvert != dL.io.col.window.twoInvert ||
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io.col.window.twoInvert != uL.io.col.window.twoInvert ||
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io.col.window.mask != dL.io.col.window.mask ||
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io.col.window.mask != uL.io.col.window.mask ||
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io.col.window.aboveMask != dL.io.col.window.aboveMask ||
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io.col.window.aboveMask != uL.io.col.window.aboveMask ||
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io.col.window.belowMask != dL.io.col.window.belowMask ||
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io.col.window.belowMask != uL.io.col.window.belowMask
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|| dL.io.window.oneLeft - io.window.oneLeft > THRESHOLD
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|| io.window.oneLeft - dL.io.window.oneLeft > THRESHOLD
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|| uL.io.window.oneLeft - io.window.oneLeft > THRESHOLD
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|| io.window.oneLeft - uL.io.window.oneLeft > THRESHOLD
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|| dL.io.window.oneRight - io.window.oneRight > THRESHOLD
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|| io.window.oneRight - dL.io.window.oneRight > THRESHOLD
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|| uL.io.window.oneRight - io.window.oneRight > THRESHOLD
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|| io.window.oneRight - uL.io.window.oneRight > THRESHOLD
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|| dL.io.window.twoLeft - io.window.twoLeft > THRESHOLD
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|| io.window.twoLeft - dL.io.window.twoLeft > THRESHOLD
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|| uL.io.window.twoLeft - io.window.twoLeft > THRESHOLD
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|| io.window.twoLeft - uL.io.window.twoLeft > THRESHOLD
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|| dL.io.window.twoRight - io.window.twoRight > THRESHOLD
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|| io.window.twoRight - dL.io.window.twoRight > THRESHOLD
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|| uL.io.window.twoRight - io.window.twoRight > THRESHOLD
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|| io.window.twoRight - uL.io.window.twoRight > THRESHOLD
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) break;
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oneLeft += dL.io.window.oneLeft + uL.io.window.oneLeft;
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oneRight += dL.io.window.oneRight + uL.io.window.oneRight;
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twoLeft += dL.io.window.twoLeft + uL.io.window.twoLeft;
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twoRight += dL.io.window.twoRight + uL.io.window.twoRight;
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count += 2;
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}
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if (ppu.strwin()) {
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oneLeft *= 2;
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oneRight *= 2;
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twoLeft *= 2;
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twoRight *= 2;
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}
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int ws = ppu.widescreen() * scale;
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oneLeft = oneLeft * scale / count + ws;
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oneRight = oneRight * scale / count + ws + scale - 1;
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twoLeft = twoLeft * scale / count + ws;
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twoRight = twoRight * scale / count + ws + scale - 1;
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if (ppu.strwin()) {
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oneLeft -= 128 * scale;
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oneRight -= 128 * scale;
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twoLeft -= 128 * scale;
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twoRight -= 128 * scale;
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} else {
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int lw = 0 - scale * 10;
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int l = ws + scale;
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int r = ws + 255 * scale;
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int rw = ws + 255 * scale + ws + scale * 10;
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if (oneLeft < l) {
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oneLeft = lw;
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} else if (oneLeft >= r) {
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oneLeft = rw;
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}
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if (oneRight < l) {
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oneRight = lw;
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} else if (oneRight >= r) {
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oneRight = rw;
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}
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if (twoLeft < l) {
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twoLeft = lw;
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} else if (twoLeft >= r) {
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twoLeft = rw;
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}
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if (twoRight < l) {
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twoRight = lw;
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} else if (twoRight >= r) {
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twoRight = rw;
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}
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}
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renderWindow(io.col.window, io.col.window.aboveMask, windowAbove,
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oneLeft, oneRight, twoLeft, twoRight, scale,
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(256 + 2 * ppu.widescreen())*scale*offset, ppu.widescreen());
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renderWindow(io.col.window, io.col.window.belowMask, windowBelow,
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oneLeft, oneRight, twoLeft, twoRight, scale,
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(256 + 2 * ppu.widescreen())*scale*offset, ppu.widescreen());
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}
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uint wsm = (ppu.widescreen() == 0 || ppu.wsOverride()) ? 0 : ppu.wsMarker();
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uint wsma = ppu.wsMarkerAlpha();
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uint curr = 0, prev = 0;
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if(hd) {
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for(uint ySub : range(scale)) {
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for(uint x : range((256 + 2 * ppufast.widescreen() ) * scale)) {
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*output++ = pixel(x, above[x], below[x], ppu.widescreen(), wsm, wsma, bgFixedColors[ySub]);
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}
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}
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} else if(width == 256) for(uint x : range(256)) {
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*output++ = pixel(x, above[x], below[x], 0, 0, 0, bgFixedColors[0]);
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} else if(!hires) for(uint x : range(256)) {
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auto color = pixel(x, above[x], below[x], 0, 0, 0, bgFixedColors[0]);
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*output++ = color;
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*output++ = color;
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} else if(!configuration.video.blurEmulation) for(uint x : range(256)) {
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*output++ = pixel(x, below[x], above[x], 0, 0, 0, bgFixedColors[0]);
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*output++ = pixel(x, above[x], below[x], 0, 0, 0, bgFixedColors[0]);
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} else for(uint x : range(256)) {
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curr = pixel(x, below[x], above[x], 0, 0, 0, bgFixedColors[0]);
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*output++ = (prev + curr - ((prev ^ curr) & 0x00010101)) >> 1;
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prev = curr;
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curr = pixel(x, above[x], below[x], 0, 0, 0, bgFixedColors[0]);
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*output++ = (prev + curr - ((prev ^ curr) & 0x00010101)) >> 1;
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prev = curr;
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}
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delete [] bgFixedColors;
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delete [] belowColors;
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}
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auto PPU::Line::pixel(uint x, Pixel above, Pixel below, uint ws, uint wsm,
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uint wsma, uint32 bgFixedColor) const -> uint32 {
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uint32 r = 0;
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if(!windowAbove[ppufast.winXadHd(x, false)]) above.color = 0x0000;
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if(!windowBelow[ppufast.winXadHd(x, true)]) r = above.color;
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else if(!io.col.enable[above.source]) r = above.color;
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else if(!io.col.blendMode) r = blend(above.color, bgFixedColor, io.col.halve && windowAbove[x]);
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else r = blend(above.color, below.color, io.col.halve && windowAbove[x] && below.source != Source::COL);
|
|
if(wsm > 0) {
|
|
x /= ppufast.hdScale();
|
|
if(x == ws - 1 || x == ws + 256 || wsm == 2 && (x <= ws - 1 || x >= ws + 256)) {
|
|
int b = wsm == 2 ? 0 : ((y / 4) % 2 == 0) ? 0 : 255;
|
|
r = ((((((r >> 16) & 255) * wsma) + b) / (wsma + 1)) << 16)
|
|
+ ((((((r >> 8) & 255) * wsma) + b) / (wsma + 1)) << 8)
|
|
+ ((((((r >> 0) & 255) * wsma) + b) / (wsma + 1)) << 0);
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
auto PPU::Line::blend(uint x, uint y, bool halve) const -> uint32 {
|
|
if(!io.col.mathMode) { //add
|
|
if(!halve) {
|
|
uint sum = x + y;
|
|
uint carry = (sum - ((x ^ y) & 0x00010101)) & 0x01010100;
|
|
return (sum - carry) | (carry - (carry >> 8));
|
|
} else {
|
|
return (x + y - ((x ^ y) & 0x00010101)) >> 1;
|
|
}
|
|
} else { //sub
|
|
uint diff = x - y + 0x01010100;
|
|
uint borrow = (diff - ((x ^ y) & 0x01010100)) & 0x01010100;
|
|
if(!halve) {
|
|
return (diff - borrow) & (borrow - (borrow >> 8));
|
|
} else {
|
|
return (((diff - borrow) & (borrow - (borrow >> 8))) & 0x00fefefe) >> 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
auto PPU::Line::directColor(uint paletteIndex, uint paletteColor) const -> uint32 {
|
|
//paletteIndex = bgr
|
|
//paletteColor = BBGGGRRR
|
|
//output = 0 BBb00 GGGg0 RRRr0
|
|
return (paletteColor << 2 & 0x001c) + (paletteIndex << 1 & 0x0002) //R
|
|
+ (paletteColor << 4 & 0x0380) + (paletteIndex << 5 & 0x0040) //G
|
|
+ (paletteColor << 7 & 0x6000) + (paletteIndex << 10 & 0x1000); //B
|
|
}
|
|
|
|
auto PPU::Line::plotAbove(int x, uint8 source, uint8 priority, uint32 color) -> void {
|
|
if(ppu.hd() || ppu.ss()) return plotHD(above, x, source, priority, color, false, false);
|
|
if(priority > above[x].priority) above[x] = {source, priority, color};
|
|
}
|
|
|
|
auto PPU::Line::plotBelow(int x, uint8 source, uint8 priority, uint32 color) -> void {
|
|
if(ppu.hd() || ppu.ss()) return plotHD(below, x, source, priority, color, false, false);
|
|
if(priority > below[x].priority) below[x] = {source, priority, color};
|
|
}
|
|
|
|
//todo: name these variables more clearly ...
|
|
auto PPU::Line::plotHD(Pixel* pixel, int x, uint8 source, uint8 priority, uint32 color, bool hires, bool subpixel) -> void {
|
|
int scale = ppu.hdScale();
|
|
int wss = ppu.widescreen() * scale;
|
|
int xss = hires && subpixel ? (scale / 2 + ((scale & 1 == 1) && (x & 1 == 1))) : 0;
|
|
int ys = ppu.interlace() && ppu.field() ? scale / 2 : 0;
|
|
if(priority > pixel[x * scale + xss + ys * 256 * scale + wss].priority) {
|
|
Pixel p = {source, priority, color};
|
|
int xsm = hires && !subpixel ? (scale / 2 + ((scale & 1 == 1) && (x & 1 == 1))) : scale;
|
|
int ysm = ppu.interlace() && !ppu.field() ? scale / 2 : scale;
|
|
for(int xs = xss; xs < xsm; xs++) {
|
|
pixel[x * scale + xs + ys * 256 * scale + wss] = p;
|
|
}
|
|
int size = sizeof(Pixel) * (xsm - xss);
|
|
Pixel* source = &pixel[x * scale + xss + ys * 256 * scale + wss];
|
|
for(int yst = ys + 1; yst < ysm; yst++) {
|
|
memcpy(&pixel[x * scale + xss + yst * (256+2*ppu.widescreen()) * scale + wss], source, size);
|
|
}
|
|
}
|
|
}
|