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Improve memoisation in `ScreenshotForm`

This commit is contained in:
James Groom 2024-04-04 23:39:17 +00:00 committed by GitHub
parent 18f8f3faa2
commit 3cb7847b35
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GPG Key ID: B5690EEEBB952194
1 changed files with 7 additions and 6 deletions
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13
src/BizHawk.Client.EmuHawk/tools/TAStudio/ScreenshotForm.cs
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@ -16,10 +16,11 @@ namespace BizHawk.Client.EmuHawk
private const int Interval = 40; private const int Interval = 40;
private const double AlphaStep = 0.125; private const double AlphaStep = 0.125;
private Bitmap/*?*/ _bitmap = null;
private readonly Timer _showTimer = new Timer(); private readonly Timer _showTimer = new Timer();
private readonly Timer _hideTimer = new Timer(); private readonly Timer _hideTimer = new Timer();
private TasBranch _branch;
private int _drawingHeight; private int _drawingHeight;
public new Font Font; public new Font Font;
@ -59,11 +60,13 @@ namespace BizHawk.Client.EmuHawk
public void UpdateValues(TasBranch branch, Point location , int width, int height, int padding) public void UpdateValues(TasBranch branch, Point location , int width, int height, int padding)
{ {
_branch = branch; var bb = branch.OSDFrameBuffer;
bb.DiscardAlpha();
_bitmap = bb.ToSysdrawingBitmap();
Width = width; Width = width;
Padding = padding; Padding = padding;
_drawingHeight = height; _drawingHeight = height;
Text = _branch.UserText; Text = branch.UserText;
Location = location; Location = location;
if (Padding > 0) if (Padding > 0)
@ -77,9 +80,7 @@ namespace BizHawk.Client.EmuHawk
protected override void OnPaint(PaintEventArgs e) protected override void OnPaint(PaintEventArgs e)
{ {
_branch.OSDFrameBuffer.DiscardAlpha(); e.Graphics.DrawImage(_bitmap!, new Rectangle(0, 0, Width, _drawingHeight));
var bitmap = _branch.OSDFrameBuffer.ToSysdrawingBitmap();
e.Graphics.DrawImage(bitmap, new Rectangle(0, 0, Width, _drawingHeight));
if (Padding > 0) if (Padding > 0)
{ {
e.Graphics.DrawRectangle(new Pen(Brushes.Black), new Rectangle(new Point(0, _drawingHeight), new Size(Width - 1, Padding - 1))); e.Graphics.DrawRectangle(new Pen(Brushes.Black), new Rectangle(new Point(0, _drawingHeight), new Size(Width - 1, Padding - 1)));