Function CopyMixedSource

source/RGBMonitor.cpp:510–551

}

static void CopyMixedSource(int x, int y, int sx, int sy, bgra_t *pVideoAddress)
{
	const BYTE* const pSrc = g_aSourceStartofLine[ sy ] + sx;

	const int matx = x*14;
	const int maty = HGR_MATRIX_YOFFSET + y;
	const bool isSWMIXED = GetVideo().VideoGetSWMIXED();

	// transfer 14 pixels (i.e. the visible part of an apple hgr-byte) from row to pixelmatrix
	for (int nBytes=13; nBytes>=0; nBytes--)
	{
		hgrpixelmatrix[matx+nBytes][maty] = *(pSrc+nBytes);
	}

	const bool bIsHalfScanLines = GetVideo().IsVideoStyle(VS_HALF_SCANLINES);
	const UINT frameBufferWidth = GetVideo().GetFrameBufferWidth();

	for (int nBytes=13; nBytes>=0; nBytes--)
	{
		// color mixing between adjacent scanlines at current x position
		MixColorsVertical(matx+nBytes, maty, isSWMIXED);	//Post: colormixbuffer[]

		UINT32* pDst = (UINT32*) pVideoAddress;

		for (int h=HGR_MATRIX_YOFFSET; h<=HGR_MATRIX_YOFFSET+1; h++)
		{
			if (bIsHalfScanLines && (h & 1))
			{
				// 50% Half Scan Line clears every odd scanline (and SHIFT+PrintScreen saves only the even rows)
				*(pDst+nBytes) = OPAQUE_BLACK;
			}
			else
			{
				_ASSERT( colormixbuffer[h] < (sizeof(PaletteRGB_NTSC)/sizeof(PaletteRGB_NTSC[0])) );
				const RGBQUAD& rRGB = g_pPaletteRGB[ colormixbuffer[h] ];
				*(pDst+nBytes) = *reinterpret_cast<const UINT32 *>(&rRGB);
			}

			pDst -= frameBufferWidth;
		}
	}
}

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