285 lines
8.0 KiB
C#
285 lines
8.0 KiB
C#
using System;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Windows.Forms;
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using BizHawk.Emulation.Consoles.Nintendo;
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namespace BizHawk.MultiClient
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{
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public partial class NESNameTableViewer : Form
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{
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//TODO:
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//Show Scroll Lines + UI Toggle
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private NES _nes;
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private readonly NES.PPU.DebugCallback Callback = new NES.PPU.DebugCallback();
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public NESNameTableViewer()
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{
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InitializeComponent();
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Closing += (o, e) => SaveConfigSettings();
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Callback.Callback = () => Generate();
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}
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private void SaveConfigSettings()
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{
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Global.Config.NESNameTableWndx = Location.X;
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Global.Config.NESNameTableWndy = Location.Y;
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Global.Config.NESNameTableRefreshRate = RefreshRate.Value;
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}
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unsafe void Generate(bool now = false)
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{
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if (!IsHandleCreated || IsDisposed) return;
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if (_nes == null) return;
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if (now == false)
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{
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if (Global.Emulator.Frame % RefreshRate.Value != 0) return;
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}
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BitmapData bmpdata = NameTableView.Nametables.LockBits(new Rectangle(0, 0, 512, 480), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
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int* dptr = (int*)bmpdata.Scan0.ToPointer();
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int pitch = bmpdata.Stride / 4;
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int pt_add = _nes.ppu.reg_2000.bg_pattern_hi ? 0x1000 : 0;
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//buffer all the data from the ppu, because it will be read multiple times and that is slow
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byte[] p = new byte[0x3000];
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for (int x = 0; x < 0x3000; x++)
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p[x] = _nes.ppu.ppubus_peek(x);
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byte[] palram = new byte[0x20];
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for (int x = 0; x < 0x20; x++)
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palram[x] = _nes.ppu.PALRAM[x];
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int ytable = 0, yline = 0;
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for (int y = 0; y < 480; y++)
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{
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if (y == 240)
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{
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ytable += 2;
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yline = 240;
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}
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for (int x = 0; x < 512; x++, dptr++)
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{
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int table = (x >> 8) + ytable;
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int ntaddr = (table << 10);
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int px = x & 255;
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int py = y - yline;
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int tx = px >> 3;
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int ty = py >> 3;
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int ntbyte_ptr = ntaddr + (ty * 32) + tx;
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int atbyte_ptr = ntaddr + 0x3C0 + ((ty >> 2) << 3) + (tx >> 2);
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int nt = p[ntbyte_ptr + 0x2000];
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int at = p[atbyte_ptr + 0x2000];
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if ((ty & 2) != 0) at >>= 4;
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if ((tx & 2) != 0) at >>= 2;
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at &= 0x03;
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at <<= 2;
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int bgpx = x & 7;
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int bgpy = y & 7;
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int pt_addr = (nt << 4) + bgpy + pt_add;
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int pt_0 = p[pt_addr];
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int pt_1 = p[pt_addr + 8];
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int pixel = ((pt_0 >> (7 - bgpx)) & 1) | (((pt_1 >> (7 - bgpx)) & 1) << 1);
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//if the pixel is transparent, draw the backdrop color
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//TODO - consider making this optional? nintendulator does it and fceux doesnt need to do it due to buggy palette logic which creates the same effect
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if (pixel != 0)
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pixel |= at;
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pixel = palram[pixel];
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int cvalue = _nes.LookupColor(pixel);
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*dptr = cvalue;
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}
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dptr += pitch - 512;
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}
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NameTableView.Nametables.UnlockBits(bmpdata);
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NameTableView.Refresh();
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}
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public void UpdateValues()
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{
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if (!IsHandleCreated || IsDisposed) return;
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if (!(Global.Emulator is NES)) return;
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NES.PPU ppu = (Global.Emulator as NES).ppu;
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ppu.NTViewCallback = Callback;
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}
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public void Restart()
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{
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if (!(Global.Emulator is NES)) Close();
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_nes = Global.Emulator as NES;
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Generate(true);
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}
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private void NESNameTableViewer_Load(object sender, EventArgs e)
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{
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if (Global.Config.NESNameTableSaveWindowPosition && Global.Config.NESNameTableWndx >= 0 && Global.Config.NESNameTableWndy >= 0)
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Location = new Point(Global.Config.NESNameTableWndx, Global.Config.NESNameTableWndy);
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_nes = Global.Emulator as NES;
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RefreshRate.Value = Global.Config.NESNameTableRefreshRate;
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Generate(true);
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}
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private void exitToolStripMenuItem_Click(object sender, EventArgs e)
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{
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Close();
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}
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private void autoloadToolStripMenuItem_Click(object sender, EventArgs e)
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{
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Global.Config.AutoLoadNESNameTable ^= true;
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}
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private void saveWindowPositionToolStripMenuItem_Click(object sender, EventArgs e)
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{
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Global.Config.NESNameTableSaveWindowPosition ^= true;
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}
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private void optionsToolStripMenuItem_DropDownOpened(object sender, EventArgs e)
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{
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autoloadToolStripMenuItem.Checked = Global.Config.AutoLoadNESNameTable;
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saveWindowPositionToolStripMenuItem.Checked = Global.Config.NESNameTableSaveWindowPosition;
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}
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private void txtScanline_TextChanged(object sender, EventArgs e)
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{
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int temp;
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if (int.TryParse(txtScanline.Text, out temp))
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{
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Callback.Scanline = temp;
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}
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}
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private void NESNameTableViewer_FormClosed(object sender, FormClosedEventArgs e)
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{
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if (_nes == null) return;
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if (_nes.ppu.NTViewCallback == Callback)
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_nes.ppu.NTViewCallback = null;
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}
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private void rbNametable_CheckedChanged(object sender, EventArgs e)
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{
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if (rbNametableNW.Checked) NameTableView.Which = NameTableViewer.WhichNametable.NT_2000;
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if (rbNametableNE.Checked) NameTableView.Which = NameTableViewer.WhichNametable.NT_2400;
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if (rbNametableSW.Checked) NameTableView.Which = NameTableViewer.WhichNametable.NT_2800;
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if (rbNametableSE.Checked) NameTableView.Which = NameTableViewer.WhichNametable.NT_2C00;
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if (rbNametableAll.Checked) NameTableView.Which = NameTableViewer.WhichNametable.NT_ALL;
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}
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private void NameTableView_MouseMove(object sender, MouseEventArgs e)
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{
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int TileX, TileY, NameTable;
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if (NameTableView.Which == NameTableViewer.WhichNametable.NT_ALL)
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{
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TileX = e.X / 8;
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TileY = e.Y / 8;
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NameTable = (TileX / 32) + ((TileY / 30) * 2);
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}
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else
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{
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switch (NameTableView.Which)
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{
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default:
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case NameTableViewer.WhichNametable.NT_2000:
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NameTable = 0;
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break;
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case NameTableViewer.WhichNametable.NT_2400:
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NameTable = 1;
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break;
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case NameTableViewer.WhichNametable.NT_2800:
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NameTable = 2;
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break;
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case NameTableViewer.WhichNametable.NT_2C00:
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NameTable = 3;
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break;
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}
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TileX = e.X / 16;
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TileY = e.Y / 16;
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}
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XYLabel.Text = TileX.ToString() + " : " + TileY.ToString();
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int PPUAddress = 0x2000 + (NameTable * 0x400) + ((TileY % 30) * 32) + (TileX % 32);
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PPUAddressLabel.Text = String.Format("{0:X4}", PPUAddress);
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int TileID = _nes.ppu.ppubus_read(PPUAddress, true);
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TileIDLabel.Text = String.Format("{0:X2}", TileID);
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TableLabel.Text = NameTable.ToString();
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int ytable = 0, yline = 0;
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if (e.Y >= 240)
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{
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ytable += 2;
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yline = 240;
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}
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int table = (e.X >> 8) + ytable;
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int ntaddr = (table << 10);
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int px = e.X & 255;
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int py = e.Y - yline;
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int tx = px >> 3;
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int ty = py >> 3;
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int atbyte_ptr = ntaddr + 0x3C0 + ((ty >> 2) << 3) + (tx >> 2);
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int at = _nes.ppu.ppubus_peek(atbyte_ptr + 0x2000);
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if ((ty & 2) != 0) at >>= 4;
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if ((tx & 2) != 0) at >>= 2;
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at &= 0x03;
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PaletteLabel.Text = at.ToString();
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}
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private void NameTableView_MouseLeave(object sender, EventArgs e)
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{
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XYLabel.Text = "";
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PPUAddressLabel.Text = "";
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TileIDLabel.Text = "";
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TableLabel.Text = "";
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PaletteLabel.Text = "";
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}
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private void screenshotToolStripMenuItem_Click(object sender, EventArgs e)
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{
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NameTableView.Screenshot();
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}
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private void screenshotAsToolStripMenuItem_Click(object sender, EventArgs e)
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{
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NameTableView.Screenshot();
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}
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private void refreshImageToolStripMenuItem_Click(object sender, EventArgs e)
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{
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UpdateValues();
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NameTableView.Refresh();
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}
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private void saveImageClipboardToolStripMenuItem_Click(object sender, EventArgs e)
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{
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NameTableView.ScreenshotToClipboard();
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}
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private void NESNameTableViewer_KeyDown(object sender, KeyEventArgs e)
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{
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switch (e.KeyCode)
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{
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case Keys.C:
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if (e.Modifiers == Keys.Control)
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{
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NameTableView.ScreenshotToClipboard();
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}
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break;
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}
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}
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private void screenshotToClipboardToolStripMenuItem_Click(object sender, EventArgs e)
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{
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NameTableView.ScreenshotToClipboard();
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}
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}
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}
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