78 lines
2.0 KiB
C#
78 lines
2.0 KiB
C#
using System;
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using BizHawk.Emulation.Common;
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namespace BizHawk.Emulation.Cores.Consoles.Sega.gpgx
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{
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public partial class GPGX : IVideoProvider
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{
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public int[] GetVideoBuffer() { return vidbuff; }
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public int VirtualWidth { get { return 320; } }
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public int VirtualHeight { get { return 224; } }
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public int BufferWidth { get { return vwidth; } }
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public int BufferHeight { get { return vheight; } }
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public int BackgroundColor { get { return unchecked((int)0xff000000); } }
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private int[] vidbuff = new int[0];
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private int vwidth;
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private int vheight;
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private void UpdateVideoInitial()
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{
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// hack: you should call update_video() here, but that gives you 256x192 on frame 0
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// and we know that we only use GPGX to emulate genesis games that will always be 320x224 immediately afterwards
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// so instead, just assume a 320x224 size now; if that happens to be wrong, it'll be fixed soon enough.
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vwidth = 320;
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vheight = 224;
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vidbuff = new int[vwidth * vheight];
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for (int i = 0; i < vidbuff.Length; i++)
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vidbuff[i] = unchecked((int)0xff000000);
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}
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private unsafe void UpdateVideo()
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{
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int gppitch, gpwidth, gpheight;
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IntPtr src = IntPtr.Zero;
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LibGPGX.gpgx_get_video(out gpwidth, out gpheight, out gppitch, ref src);
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vwidth = gpwidth;
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vheight = gpheight;
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if (_settings.PadScreen320 && vwidth == 256)
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vwidth = 320;
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int xpad = (vwidth - gpwidth) / 2;
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int xpad2 = vwidth - gpwidth - xpad;
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if (vidbuff.Length < vwidth * vheight)
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vidbuff = new int[vwidth * vheight];
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int rinc = (gppitch / 4) - gpwidth;
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fixed (int* pdst_ = &vidbuff[0])
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{
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int* pdst = pdst_;
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int* psrc = (int*)src;
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for (int j = 0; j < gpheight; j++)
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{
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for (int i = 0; i < xpad; i++)
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*pdst++ = unchecked((int)0xff000000);
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for (int i = 0; i < gpwidth; i++)
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*pdst++ = *psrc++;// | unchecked((int)0xff000000);
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for (int i = 0; i < xpad2; i++)
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*pdst++ = unchecked((int)0xff000000);
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psrc += rinc;
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}
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}
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}
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}
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}
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