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InputRoll - proof of concept for bitmap drawing

This commit is contained in:
adelikat 2014-08-18 00:23:09 +00:00
parent 9774630e54
commit 7ffeeb7af2
2 changed files with 65 additions and 13 deletions
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73
BizHawk.Client.EmuHawk/CustomControls/GDIRenderer.cs
View File

@ -52,6 +52,8 @@ namespace BizHawk.Client.EmuHawk.CustomControls
}
}
EndOffScreenBitmap();
System.Diagnostics.Debug.Assert(_hdc == IntPtr.Zero, "Disposed a GDIRenderer while it held an HDC");
System.Diagnostics.Debug.Assert(_g == null, "Disposed a GDIRenderer while it held a Graphics");
}
@ -80,7 +82,7 @@ namespace BizHawk.Client.EmuHawk.CustomControls
SetFont(font);
var size = new Size();
GetTextExtentPoint32(_hdc, str, str.Length, ref size);
GetTextExtentPoint32(CurrentHDC, str, str.Length, ref size);
return size;
}
@ -98,7 +100,7 @@ namespace BizHawk.Client.EmuHawk.CustomControls
SetFont(font);
var size = new Size();
GetTextExtentExPoint(_hdc, str, str.Length, (int)Math.Round(maxWidth), CharFit, CharFitWidth, ref size);
GetTextExtentExPoint(CurrentHDC, str, str.Length, (int)Math.Round(maxWidth), CharFit, CharFitWidth, ref size);
charFit = CharFit[0];
charFitWidth = charFit > 0 ? CharFitWidth[charFit - 1] : 0;
return size;
@ -106,7 +108,7 @@ namespace BizHawk.Client.EmuHawk.CustomControls
public void DrawString(string str, Point point)
{
TextOut(_hdc, point.X, point.Y, str, str.Length);
TextOut(CurrentHDC, point.X, point.Y, str, str.Length);
}
public void PrepDrawString(Font font, Color color)
@ -125,7 +127,7 @@ namespace BizHawk.Client.EmuHawk.CustomControls
SetTextColor(color);
var rect2 = new Rect(rect);
DrawText(_hdc, str, str.Length, ref rect2, (uint)flags);
DrawText(CurrentHDC, str, str.Length, ref rect2, (uint)flags);
}
/// <summary>
@ -134,18 +136,18 @@ namespace BizHawk.Client.EmuHawk.CustomControls
public void SetTextColor(Color color)
{
int rgb = (color.B & 0xFF) << 16 | (color.G & 0xFF) << 8 | color.R;
SetTextColor(_hdc, rgb);
SetTextColor(CurrentHDC, rgb);
}
public void SetBackgroundColor(Color color)
{
int rgb = (color.B & 0xFF) << 16 | (color.G & 0xFF) << 8 | color.R;
SetBkColor(_hdc, rgb);
SetBkColor(CurrentHDC, rgb);
}
public void DrawRectangle(int nLeftRect, int nTopRect, int nRightRect, int nBottomRect)
{
Rectangle(_hdc, nLeftRect, nTopRect, nRightRect, nBottomRect);
Rectangle(CurrentHDC, nLeftRect, nTopRect, nRightRect, nBottomRect);
}
public void SetBrush(Color color)
@ -166,25 +168,61 @@ namespace BizHawk.Client.EmuHawk.CustomControls
public void FillRectangle(int x, int y, int w, int h)
{
var r = new GDIRect(new Rectangle(x, y, w, h));
FillRect(_hdc, ref r, _currentBrush);
FillRect(CurrentHDC, ref r, _currentBrush);
}
public void SetPenPosition(int x, int y)
{
MoveToEx(_hdc, x, y, IntPtr.Zero);
MoveToEx(CurrentHDC, x, y, IntPtr.Zero);
}
public void SetSolidPen(Color color)
{
int rgb = (color.B & 0xFF) << 16 | (color.G & 0xFF) << 8 | color.R;
SelectObject(_hdc, GetStockObject((int)PaintObjects.DC_PEN));
SetDCPenColor(_hdc, rgb);
SelectObject(CurrentHDC, GetStockObject((int)PaintObjects.DC_PEN));
SetDCPenColor(CurrentHDC, rgb);
}
public void Line(int x1, int y1, int x2, int y2)
{
MoveToEx(_hdc, x1, y1, IntPtr.Zero);
LineTo(_hdc, x2, y2);
MoveToEx(CurrentHDC, x1, y1, IntPtr.Zero);
LineTo(CurrentHDC, x2, y2);
}
private IntPtr CurrentHDC
{
get { return _bitHDC != IntPtr.Zero ? _bitHDC : _hdc; }
}
private IntPtr _bitMap = IntPtr.Zero; // TODO: dispose of this guy
private IntPtr _bitHDC = IntPtr.Zero; // TODO: dispose of this guy
private int _bitW;
private int _bitH;
public void StartOffScreenBitmap(int width, int height)
{
_bitW = width;
_bitH = height;
_bitHDC = CreateCompatibleDC(_hdc);
_bitMap = CreateCompatibleBitmap(_hdc, width, height);
}
public void EndOffScreenBitmap()
{
_bitW = 0;
_bitH = 0;
DeleteObject(_bitMap);
DeleteObject(_bitHDC);
_bitHDC = IntPtr.Zero;
_bitMap = IntPtr.Zero;
}
public void CopyToScreen()
{
BitBlt(_bitMap, 0, 0, _bitW, _bitH, _hdc, 0, 0, 0x00CC0020);
}
#endregion
@ -299,6 +337,15 @@ namespace BizHawk.Client.EmuHawk.CustomControls
[DllImport("gdi32.dll")]
private static extern IntPtr SetDCPenColor(IntPtr hdc, int crColor);
[DllImport("gdi32.dll")]
private static extern IntPtr CreateCompatibleDC(IntPtr hdc);
[DllImport("gdi32.dll")]
private static extern IntPtr CreateCompatibleBitmap(IntPtr hdc, int width, int height);
[DllImport("gdi32.dll")]
private static extern void BitBlt(IntPtr sourceHdc, int x, int y, int w, int h, IntPtr destinationHDc, int destinationX, int destinationY, int copyType);
#endregion
#region Classes, Structs, and Enums

5
BizHawk.Client.EmuHawk/tools/TAStudio/InputRoll.cs
View File

@ -236,6 +236,8 @@ namespace BizHawk.Client.EmuHawk
{
using (var LCK = Gdi.LockGraphics(e.Graphics))
{
Gdi.StartOffScreenBitmap(Width, Height);
// Header
if (Columns.Any())
{
@ -248,6 +250,9 @@ namespace BizHawk.Client.EmuHawk
// ForeGround
DrawData(e);
Gdi.CopyToScreen();
Gdi.EndOffScreenBitmap();
}
}