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6502bench/SourceGen/Tools/WpfGui/Apple2ScreenChart.xaml.cs

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/*
* Copyright 2020 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using Asm65;
namespace SourceGen.Tools.WpfGui {
/// <summary>
/// Apple II text/graphics memory map chart.
/// </summary>
public partial class Apple2ScreenChart : Window {
private const int NUM_HI_RES_ROWS = 192;
private const int NUM_TEXT_ROWS = 24;
private const int NUM_TEXT_HOLES = 8;
private Formatter mFormatter;
private static int[] sHiResRowsByAddr = GenerateHiResRowsByAddr();
private static int[] sTextRowsByAddr = GenerateTextRowsByAddr();
public enum ChartMode {
Unknown = 0,
HiRes1_L,
HiRes2_L,
HiRes1_A,
HiRes2_A,
TextWithHoles
};
public class ChartModeItem {
public string Name { get; private set; }
public ChartMode Mode { get; private set; }
public ChartModeItem(string name, ChartMode mode) {
Name = name;
Mode = mode;
}
}
public ChartModeItem[] ChartModeItems { get; private set; }
public Apple2ScreenChart(Window owner, Formatter formatter) {
InitializeComponent();
Owner = owner;
DataContext = this;
mFormatter = formatter;
ChartModeItems = new ChartModeItem[] {
new ChartModeItem((string)FindResource("str_HiRes1_L"), ChartMode.HiRes1_L),
new ChartModeItem((string)FindResource("str_HiRes2_L"), ChartMode.HiRes2_L),
new ChartModeItem((string)FindResource("str_HiRes1_A"), ChartMode.HiRes1_A),
new ChartModeItem((string)FindResource("str_HiRes2_A"), ChartMode.HiRes2_A),
new ChartModeItem((string)FindResource("str_TextWithHoles"), ChartMode.TextWithHoles),
};
}
public void Window_Loaded(object sender, RoutedEventArgs e) {
// Restore chart mode setting.
ChartMode mode = (ChartMode)AppSettings.Global.GetEnum(
AppSettings.A2SC_MODE, typeof(ChartMode), (int)ChartMode.HiRes1_L);
int index = 0;
for (int i = 0; i < ChartModeItems.Length; i++) {
if (ChartModeItems[i].Mode == mode) {
index = i;
break;
}
}
chartModeComboBox.SelectedIndex = index;
// should call UpdateControls via SelectionChanged
}
// Catch ESC key.
private void Window_KeyEventHandler(object sender, KeyEventArgs e) {
if (e.Key == Key.Escape) {
Close();
}
}
private void ChartModeComboBox_SelectionChanged(object sender,
SelectionChangedEventArgs e) {
UpdateControls();
}
private void UpdateControls() {
ChartModeItem item = (ChartModeItem)chartModeComboBox.SelectedItem;
if (item == null) {
// initializing
return;
}
AppSettings.Global.SetEnum(AppSettings.A2SC_MODE, typeof(ChartMode), (int)item.Mode);
string text;
switch (item.Mode) {
case ChartMode.HiRes1_L:
text = DrawHiRes(0x2000, true);
break;
case ChartMode.HiRes2_L:
text = DrawHiRes(0x4000, true);
break;
case ChartMode.HiRes1_A:
text = DrawHiRes(0x2000, false);
break;
case ChartMode.HiRes2_A:
text = DrawHiRes(0x4000, false);
break;
case ChartMode.TextWithHoles:
text = DrawText();
break;
default:
text = "UNKNOWN MODE";
break;
}
chartTextBox.Text = text;
chartTextBox.SelectionStart = text.Length;
chartTextBox.SelectionLength = 0;
}
/// <summary>
/// Draws chart for hi-res graphics.
/// </summary>
/// <param name="baseAddr">Base address ($2000/$4000).</param>
/// <param name="byLine">True if we want to sort by line number, false for address.</param>
/// <returns>String with entire chart.</returns>
private string DrawHiRes(int baseAddr, bool byLine) {
const string eol = " \r\n"; // add space for balance
const string div = " | ";
string hdr;
if (byLine) {
hdr = "Line Addr ";
} else {
hdr = "Addr Line";
}
StringBuilder sb = new StringBuilder(
(hdr.Length * 4 + div.Length * 3 + eol.Length) * (NUM_HI_RES_ROWS / 4));
sb.Append(hdr);
sb.Append(div);
sb.Append(hdr);
sb.Append(div);
sb.Append(hdr);
sb.Append(div);
sb.Append(hdr);
for (int i = 0; i < NUM_HI_RES_ROWS / 4; i++) {
sb.Append(eol);
DrawHiResEntry(baseAddr, byLine, i, sb);
sb.Append(div);
DrawHiResEntry(baseAddr, byLine, i + NUM_HI_RES_ROWS / 4, sb);
sb.Append(div);
DrawHiResEntry(baseAddr, byLine, i + (NUM_HI_RES_ROWS * 2) / 4, sb);
sb.Append(div);
DrawHiResEntry(baseAddr, byLine, i + (NUM_HI_RES_ROWS * 3) / 4, sb);
}
return sb.ToString();
}
private void DrawHiResEntry(int baseAddr, bool byLine, int index, StringBuilder sb) {
if (byLine) {
sb.AppendFormat("{0,3:D} {1}", index,
mFormatter.FormatHexValue(HiResRowToAddr(baseAddr, index), 4));
} else {
int row = sHiResRowsByAddr[index];
sb.AppendFormat("{1} {0,3:D}", row,
mFormatter.FormatHexValue(HiResRowToAddr(baseAddr, row), 4));
}
}
/// <summary>
/// Generates the address of a line on the hi-res screen.
/// </summary>
/// <param name="baseAddr">Base address ($2000 or $4000).</param>
/// <param name="row">Row number, 0-191.</param>
/// <returns>Address of start of line.</returns>
private static int HiResRowToAddr(int baseAddr, int row) {
// If row is ABCDEFGH, we want pppFGHCD EABAB000 (where p would be $20/$40).
int low = ((row & 0xc0) >> 1) | ((row & 0xc0) >> 3) | ((row & 0x08) << 4);
int high = ((row & 0x07) << 2) | ((row & 0x30) >> 4);
int rowAddr = baseAddr + ((high << 8) | low);
return rowAddr;
}
/// <summary>
/// Generates a sorted list of hi-res row numbers. The ordering is determined by the
/// address in memory of the row.
/// </summary>
/// <returns>List of rows, in memory order.</returns>
private static int[] GenerateHiResRowsByAddr() {
SortedList<int, int> addrList = new SortedList<int, int>(NUM_HI_RES_ROWS);
for (int i = 0; i < NUM_HI_RES_ROWS; i++) {
addrList.Add(HiResRowToAddr(0, i), i);
}
return addrList.Values.ToArray();
}
/// <summary>
/// Draws chart for the text screen. There are few enough rows that we can do
/// by-line and by-address for both pages in a reasonable amount of space.
/// </summary>
/// <returns>String with entire chart.</returns>
private string DrawText() {
const string eol = " \r\n"; // add space for balance
const string div = " | ";
const string hdr1 = "Line Page1 Page2";
const string hdr2 = "Page1 Page2 Line";
StringBuilder sb = new StringBuilder(
(hdr1.Length * 2 + div.Length * 1 + eol.Length) * (NUM_TEXT_ROWS + NUM_TEXT_HOLES));
sb.Append(" By Line " + div + " By Address" + eol);
sb.Append(hdr1);
sb.Append(div);
sb.Append(hdr2);
for (int i = 0; i < NUM_TEXT_ROWS + NUM_TEXT_HOLES; i++) {
const int base1 = 0x400;
const int base2 = 0x800;
sb.Append(eol);
int rowIndex = i < NUM_TEXT_ROWS ? i : NUM_TEXT_ROWS - i - 1;
int textRow = sTextRowsByAddr[i];
if (rowIndex >= 0) {
sb.AppendFormat(" {0,2:D} {1} {2}", rowIndex,
mFormatter.FormatHexValue(TextRowToAddr(base1, rowIndex), 4),
mFormatter.FormatHexValue(TextRowToAddr(base2, rowIndex), 4));
} else {
sb.AppendFormat(" H{0} {1} {2}", -rowIndex - 1,
mFormatter.FormatHexValue(TextRowToAddr(base1, rowIndex), 4),
mFormatter.FormatHexValue(TextRowToAddr(base2, rowIndex), 4));
}
sb.Append(div);
if (textRow >= 0) {
sb.AppendFormat("{1} {2} {0,2:D}", textRow,
mFormatter.FormatHexValue(TextRowToAddr(base1, textRow), 4),
mFormatter.FormatHexValue(TextRowToAddr(base2, textRow), 4));
} else {
sb.AppendFormat("{1} {2} H{0}", -textRow - 1,
mFormatter.FormatHexValue(TextRowToAddr(base1, textRow), 4),
mFormatter.FormatHexValue(TextRowToAddr(base2, textRow), 4));
}
}
return sb.ToString();
}
/// <summary>
/// Generates the address of a line on the text screen.
/// </summary>
/// <param name="baseAddr">Base address (0x0400 or 0x0800).</param>
/// <param name="row">Row number (0-23), or screen hole (-1 - -8).</param>
/// <returns>Address of start of line.</returns>
private static int TextRowToAddr(int baseAddr, int row) {
if (row < 0) {
// Screen hole: $478, $4f8, ...
return baseAddr + (-row) * 128 - 8;
} else {
// If row is 000ABCDE, we want 0000ppCD EABAB000 (where p is $04/$08).
int high = (row & 0x06) >> 1;
int low = (row & 0x18) | ((row & 0x18) << 2) | ((row & 0x01) << 7);
int rowAddr = baseAddr + ((high << 8) | low);
return rowAddr;
}
}
/// <summary>
/// Generates a sorted list of text row numbers. The ordering is determined by the
/// address in memory of the row.
/// </summary>
/// <returns>List of rows, in memory order.</returns>
private static int[] GenerateTextRowsByAddr() {
SortedList<int, int> addrList = new SortedList<int, int>(NUM_TEXT_ROWS);
for (int i = -NUM_TEXT_HOLES - 1; i < NUM_TEXT_ROWS; i++) {
addrList.Add(TextRowToAddr(0, i), i);
}
return addrList.Values.ToArray();
}
}
}