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NTSC (bisqwit): Removed black bar on left, fixed cutoff pixels on right

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Sour 2018-08-11 19:38:19 -04:00
parent 5577bc996e
commit 93427583c7
2 changed files with 11 additions and 8 deletions
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18
Core/BisqwitNtscFilter.cpp
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@ -159,8 +159,8 @@ void BisqwitNtscFilter::RecursiveBlend(int iterationCount, uint64_t *output, uin
void BisqwitNtscFilter::GenerateNtscSignal(int8_t *ntscSignal, int &phase, int rowNumber)
{
for(int x = 0; x < 256; x++) {
uint16_t color = _ppuOutputBuffer[(rowNumber << 8) | x];
for(int x = -_paddingSize; x < 256 + _paddingSize; x++) {
uint16_t color = _ppuOutputBuffer[(rowNumber << 8) | (x < 0 ? 0 : (x >= 256 ? 255 : x))];
int8_t low = _signalLow[color & 0x3F];
int8_t high = _signalHigh[color & 0x3F];
@ -184,19 +184,20 @@ void BisqwitNtscFilter::GenerateNtscSignal(int8_t *ntscSignal, int &phase, int r
voltage -= voltage / 4;
}
ntscSignal[(x << 3) | j] = voltage;
ntscSignal[((x + _paddingSize) << 3) | j] = voltage;
}
phase += _signalsPerPixel;
}
phase += (341 - 256) * _signalsPerPixel;
phase += (341 - 256 - _paddingSize * 2) * _signalsPerPixel;
}
void BisqwitNtscFilter::DecodeFrame(int startRow, int endRow, uint16_t *ppuOutputBuffer, uint32_t* outputBuffer, int startPhase)
{
int pixelsPerCycle = 8 / _resDivider;
int phase = startPhase;
int8_t rowSignal[256 * _signalsPerPixel];
constexpr int lineWidth = 256 + _paddingSize * 2;
int8_t rowSignal[lineWidth * _signalsPerPixel];
uint32_t rowPixelGap = GetOverscan().GetScreenWidth() * pixelsPerCycle;
if(!_keepVerticalRes) {
rowPixelGap *= pixelsPerCycle;
@ -211,7 +212,7 @@ void BisqwitNtscFilter::DecodeFrame(int startRow, int endRow, uint16_t *ppuOutpu
GenerateNtscSignal(rowSignal, phase, y);
//Convert the NTSC signal to RGB
NtscDecodeLine(256 * _signalsPerPixel, rowSignal, outputBuffer, (startCycle + 7) % 12);
NtscDecodeLine(lineWidth * _signalsPerPixel, rowSignal, outputBuffer, (startCycle + 7) % 12);
outputBuffer += rowPixelGap;
}
@ -271,8 +272,9 @@ void BisqwitNtscFilter::NtscDecodeLine(int width, const int8_t* signal, uint32_t
int brightness = (int)(_console->GetSettings()->GetPictureSettings().Brightness * 750);
int ysum = brightness, isum = 0, qsum = 0;
int leftOverscan = GetOverscan().Left * 8;
int rightOverscan = width - GetOverscan().Right * 8;
int offset = _resDivider + 4;
int leftOverscan = (GetOverscan().Left + _paddingSize) * 8 + offset;
int rightOverscan = width - (GetOverscan().Right + _paddingSize) * 8 + offset;
for(int s = 0; s < rightOverscan; s++) {
ysum += Read(s) - Read(s - _yWidth);

1
Core/BisqwitNtscFilter.h
View file

@ -10,6 +10,7 @@ class BisqwitNtscFilter : public BaseVideoFilter
{
private:
const uint16_t _bitmaskLut[12] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x100, 0x200, 0x400, 0x800 };
static constexpr int _paddingSize = 6;
static constexpr int _signalsPerPixel = 8;
static constexpr int _signalWidth = 258;