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Temporarily hijack the NES nametable viewer for a gdi experiment

This commit is contained in:
adelikat 2014-08-05 00:18:55 +00:00
parent 8cfc640d1e
commit 35d31c418b
5 changed files with 328 additions and 7 deletions
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1
BizHawk.Client.EmuHawk/BizHawk.Client.EmuHawk.csproj
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@ -443,6 +443,7 @@
<Compile Include="CustomControls\FolderBrowserDialogEx.cs">
<SubType>Component</SubType>
</Compile>
<Compile Include="CustomControls\GDITextRenderer.cs" />
<Compile Include="CustomControls\HexTextBox.cs">
<SubType>Component</SubType>
</Compile>

281
BizHawk.Client.EmuHawk/CustomControls/GDITextRenderer.cs Normal file
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@ -0,0 +1,281 @@
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
namespace BizHawk.Client.EmuHawk.CustomControls
{
/// <summary>
/// Wrapper for GDI text rendering functions<br/>
/// This class is not thread-safe as GDI function should be called from the UI thread.
/// </summary>
public sealed class NativeTextRenderer : IDisposable
{
#region Fields and Consts
/// <summary>
/// used for <see cref="MeasureString(string,System.Drawing.Font,float,out int,out int)"/> calculation.
/// </summary>
private static readonly int[] _charFit = new int[1];
/// <summary>
/// used for <see cref="MeasureString(string,System.Drawing.Font,float,out int,out int)"/> calculation.
/// </summary>
private static readonly int[] _charFitWidth = new int[1000];
/// <summary>
/// cache of all the font used not to create same font again and again
/// </summary>
private static readonly Dictionary<string, Dictionary<float, Dictionary<FontStyle, IntPtr>>> _fontsCache = new Dictionary<string, Dictionary<float, Dictionary<FontStyle, IntPtr>>>(StringComparer.InvariantCultureIgnoreCase);
/// <summary>
/// The wrapped WinForms graphics object
/// </summary>
private readonly Graphics _g;
/// <summary>
/// the initialized HDC used
/// </summary>
private IntPtr _hdc;
#endregion
/// <summary>
/// Init.
/// </summary>
public NativeTextRenderer(Graphics g)
{
_g = g;
var clip = _g.Clip.GetHrgn(_g);
_hdc = _g.GetHdc();
SetBkMode(_hdc, 1);
SelectClipRgn(_hdc, clip);
DeleteObject(clip);
}
/// <summary>
/// Measure the width and height of string <paramref name="str"/> when drawn on device context HDC
/// using the given font <paramref name="font"/>.
/// </summary>
/// <param name="str">the string to measure</param>
/// <param name="font">the font to measure string with</param>
/// <returns>the size of the string</returns>
public Size MeasureString(string str, Font font)
{
SetFont(font);
var size = new Size();
GetTextExtentPoint32(_hdc, str, str.Length, ref size);
return size;
}
/// <summary>
/// Measure the width and height of string <paramref name="str"/> when drawn on device context HDC
/// using the given font <paramref name="font"/>.<br/>
/// Restrict the width of the string and get the number of characters able to fit in the restriction and
/// the width those characters take.
/// </summary>
/// <param name="str">the string to measure</param>
/// <param name="font">the font to measure string with</param>
/// <param name="maxWidth">the max width to render the string in</param>
/// <param name="charFit">the number of characters that will fit under <see cref="maxWidth"/> restriction</param>
/// <param name="charFitWidth"></param>
/// <returns>the size of the string</returns>
public Size MeasureString(string str, Font font, float maxWidth, out int charFit, out int charFitWidth)
{
SetFont(font);
var size = new Size();
GetTextExtentExPoint(_hdc, str, str.Length, (int)Math.Round(maxWidth), _charFit, _charFitWidth, ref size);
charFit = _charFit[0];
charFitWidth = charFit > 0 ? _charFitWidth[charFit - 1] : 0;
return size;
}
/// <summary>
/// Draw the given string using the given font and foreground color at given location.
/// </summary>
/// <param name="str">the string to draw</param>
/// <param name="font">the font to use to draw the string</param>
/// <param name="color">the text color to set</param>
/// <param name="point">the location to start string draw (top-left)</param>
public void DrawString(String str, Font font, Color color, Point point)
{
SetFont(font);
SetTextColor(color);
TextOut(_hdc, point.X, point.Y, str, str.Length);
}
/// <summary>
/// Draw the given string using the given font and foreground color at given location.<br/>
/// See [http://msdn.microsoft.com/en-us/library/windows/desktop/dd162498(v=vs.85).aspx][15].
/// </summary>
/// <param name="str">the string to draw</param>
/// <param name="font">the font to use to draw the string</param>
/// <param name="color">the text color to set</param>
/// <param name="rect">the rectangle in which the text is to be formatted</param>
/// <param name="flags">The method of formatting the text</param>
public void DrawString(String str, Font font, Color color, Rectangle rect, TextFormatFlags flags)
{
SetFont(font);
SetTextColor(color);
var rect2 = new Rect(rect);
DrawText(_hdc, str, str.Length, ref rect2, (uint)flags);
}
/// <summary>
/// Release current HDC to be able to use <see cref="Graphics"/> methods.
/// </summary>
public void Dispose()
{
if (_hdc != IntPtr.Zero)
{
SelectClipRgn(_hdc, IntPtr.Zero);
_g.ReleaseHdc(_hdc);
_hdc = IntPtr.Zero;
}
}
#region Private methods
/// <summary>
/// Set a resource (e.g. a font) for the specified device context.
/// </summary>
private void SetFont(Font font)
{
SelectObject(_hdc, GetCachedHFont(font));
}
/// <summary>
/// Get cached unmanaged font handle for given font.<br/>
/// </summary>
/// <param name="font">the font to get unmanaged font handle for</param>
/// <returns>handle to unmanaged font</returns>
private static IntPtr GetCachedHFont(Font font)
{
IntPtr hfont = IntPtr.Zero;
Dictionary<float, Dictionary<FontStyle, IntPtr>> dic1;
if (_fontsCache.TryGetValue(font.Name, out dic1))
{
Dictionary<FontStyle, IntPtr> dic2;
if (dic1.TryGetValue(font.Size, out dic2))
{
dic2.TryGetValue(font.Style, out hfont);
}
else
{
dic1[font.Size] = new Dictionary<FontStyle, IntPtr>();
}
}
else
{
_fontsCache[font.Name] = new Dictionary<float, Dictionary<FontStyle, IntPtr>>();
_fontsCache[font.Name][font.Size] = new Dictionary<FontStyle, IntPtr>();
}
if (hfont == IntPtr.Zero)
{
_fontsCache[font.Name][font.Size][font.Style] = hfont = font.ToHfont();
}
return hfont;
}
/// <summary>
/// Set the text color of the device context.
/// </summary>
private void SetTextColor(Color color)
{
int rgb = (color.B & 0xFF) << 16 | (color.G & 0xFF) << 8 | color.R;
SetTextColor(_hdc, rgb);
}
[DllImport("gdi32.dll")]
private static extern int SetBkMode(IntPtr hdc, int mode);
[DllImport("gdi32.dll")]
private static extern int SelectObject(IntPtr hdc, IntPtr hgdiObj);
[DllImport("gdi32.dll")]
private static extern int SetTextColor(IntPtr hdc, int color);
[DllImport("gdi32.dll", EntryPoint = "GetTextExtentPoint32W")]
private static extern int GetTextExtentPoint32(IntPtr hdc, [MarshalAs(UnmanagedType.LPWStr)] string str, int len, ref Size size);
[DllImport("gdi32.dll", EntryPoint = "GetTextExtentExPointW")]
private static extern bool GetTextExtentExPoint(IntPtr hDc, [MarshalAs(UnmanagedType.LPWStr)]string str, int nLength, int nMaxExtent, int[] lpnFit, int[] alpDx, ref Size size);
[DllImport("gdi32.dll", EntryPoint = "TextOutW")]
private static extern bool TextOut(IntPtr hdc, int x, int y, [MarshalAs(UnmanagedType.LPWStr)] string str, int len);
[DllImport("user32.dll", EntryPoint = "DrawTextW")]
private static extern int DrawText(IntPtr hdc, [MarshalAs(UnmanagedType.LPWStr)] string str, int len, ref Rect rect, uint uFormat);
[DllImport("gdi32.dll")]
private static extern int SelectClipRgn(IntPtr hdc, IntPtr hrgn);
[DllImport("gdi32.dll")]
private static extern bool DeleteObject(IntPtr hObject);
// ReSharper disable NotAccessedField.Local
private struct Rect
{
private int _left;
private int _top;
private int _right;
private int _bottom;
public Rect(Rectangle r)
{
_left = r.Left;
_top = r.Top;
_bottom = r.Bottom;
_right = r.Right;
}
}
// ReSharper restore NotAccessedField.Local
#endregion
}
/// <summary>
/// See [http://msdn.microsoft.com/en-us/library/windows/desktop/dd162498(v=vs.85).aspx][15]
/// </summary>
[Flags]
public enum TextFormatFlags : uint
{
Default = 0x00000000,
Center = 0x00000001,
Right = 0x00000002,
VCenter = 0x00000004,
Bottom = 0x00000008,
WordBreak = 0x00000010,
SingleLine = 0x00000020,
ExpandTabs = 0x00000040,
TabStop = 0x00000080,
NoClip = 0x00000100,
ExternalLeading = 0x00000200,
CalcRect = 0x00000400,
NoPrefix = 0x00000800,
Internal = 0x00001000,
EditControl = 0x00002000,
PathEllipsis = 0x00004000,
EndEllipsis = 0x00008000,
ModifyString = 0x00010000,
RtlReading = 0x00020000,
WordEllipsis = 0x00040000,
NoFullWidthCharBreak = 0x00080000,
HidePrefix = 0x00100000,
ProfixOnly = 0x00200000,
}
}

4
BizHawk.Client.EmuHawk/tools/NES/NESNameTableViewer.Designer.cs generated
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@ -93,7 +93,7 @@
//
this.NameTableView.BackColor = System.Drawing.Color.Transparent;
this.NameTableView.ContextMenuStrip = this.contextMenuStrip1;
this.NameTableView.Location = new System.Drawing.Point(17, 19);
this.NameTableView.Location = new System.Drawing.Point(6, 19);
this.NameTableView.Name = "NameTableView";
this.NameTableView.Size = new System.Drawing.Size(512, 480);
this.NameTableView.TabIndex = 0;
@ -108,7 +108,7 @@
this.SaveImageClipboardMenuItem,
this.RefreshImageContextMenuItem});
this.contextMenuStrip1.Name = "contextMenuStrip1";
this.contextMenuStrip1.Size = new System.Drawing.Size(248, 92);
this.contextMenuStrip1.Size = new System.Drawing.Size(248, 70);
//
// ScreenshotAsContextMenuItem
//

7
BizHawk.Client.EmuHawk/tools/NES/NESNameTableViewer.cs
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@ -37,7 +37,7 @@ namespace BizHawk.Client.EmuHawk
_nes = Global.Emulator as NES;
RefreshRate.Value = Global.Config.NESNameTableRefreshRate;
Generate(true);
//Generate(true);
}
#region Public API
@ -50,7 +50,7 @@ namespace BizHawk.Client.EmuHawk
if (Global.Emulator is NES)
{
_nes = Global.Emulator as NES;
Generate(true);
//Generate(true);
}
else
{
@ -62,7 +62,8 @@ namespace BizHawk.Client.EmuHawk
{
if (Global.Emulator is NES)
{
(Global.Emulator as NES).ppu.NTViewCallback = _callback;
//(Global.Emulator as NES).ppu.NTViewCallback = _callback;
NameTableView.Invalidate();
}
else
{

42
BizHawk.Client.EmuHawk/tools/NES/NameTableViewer.cs
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@ -5,6 +5,9 @@ using System.Drawing.Imaging;
using BizHawk.Client.Common;
using BizHawk.Client.EmuHawk.WinFormExtensions;
using System.Text;
using System;
using BizHawk.Client.EmuHawk.CustomControls;
namespace BizHawk.Client.EmuHawk
{
@ -22,10 +25,10 @@ namespace BizHawk.Client.EmuHawk
SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.DoubleBuffer, true);
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
SetStyle(ControlStyles.Opaque, true);
//SetStyle(ControlStyles.Opaque, true);
Size = new Size(256, 224);
BackColor = Color.Transparent;
Paint += NameTableViewer_Paint;
//Paint += NameTableViewer_Paint;
}
public enum WhichNametable
@ -35,6 +38,41 @@ namespace BizHawk.Client.EmuHawk
public WhichNametable Which = WhichNametable.NT_ALL;
protected override void OnPaint(PaintEventArgs e)
{
using (var ntr = new NativeTextRenderer(e.Graphics))
{
for (int y = 0; y < 16; y++)
{
StringBuilder sb = new StringBuilder();
Random r = new Random((int)DateTime.Now.Ticks);
for (int i = 0; i < 64; i++)
{
sb.Append((char)r.Next(0, 255));
}
ntr.DrawString(sb.ToString(), this.Font, Color.Black, new Point(15, y * 30));
//e.Graphics.DrawString(sb.ToString(), this.Font, Brushes.Black, new Point(15, y * 30));
}
}
/*
for (int y = 0; y < 16; y++)
{
StringBuilder sb = new StringBuilder();
Random r = new Random((int)DateTime.Now.Ticks);
for (int i = 0; i < 64; i++)
{
sb.Append((char)r.Next(0, 255));
}
e.Graphics.DrawString(sb.ToString(), this.Font, Brushes.Black, new Point(15, y * 30));
}
*/
//base.OnPaint(e);
}
private void NameTableViewer_Paint(object sender, PaintEventArgs e)
{
e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;