DarthAffe/ScreenCapture.NET
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Added check to downscale limit and automatically reduced it if the captured region is not big enough to scale down that much (could cause crashed)

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Darth Affe 2023-08-24 22:27:23 +02:00
parent 8d0a5f65be
commit bd0d49f774
1 changed files with 10 additions and 4 deletions
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14
ScreenCapture.NET/DirectX/DX11ScreenCapture.cs
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@ -300,7 +300,7 @@ public sealed class DX11ScreenCapture : IScreenCapture
int unscaledWidth = width; int unscaledWidth = width;
int unscaledHeight = height; int unscaledHeight = height;
(width, height) = CalculateScaledSize(unscaledWidth, unscaledHeight, downscaleLevel); (width, height, downscaleLevel) = CalculateScaledSize(unscaledWidth, unscaledHeight, downscaleLevel);
byte[] buffer = new byte[width * height * BPP]; byte[] buffer = new byte[width * height * BPP];
@ -354,7 +354,7 @@ public sealed class DX11ScreenCapture : IScreenCapture
//TODO DarthAffe 01.05.2022: For now just reinitialize the zone in that case, but this could be optimized to only recreate the textures needed. //TODO DarthAffe 01.05.2022: For now just reinitialize the zone in that case, but this could be optimized to only recreate the textures needed.
if ((width != null) || (height != null) || (downscaleLevel != null)) if ((width != null) || (height != null) || (downscaleLevel != null))
{ {
(int newWidth, int newHeight) = CalculateScaledSize(newUnscaledWidth, newUnscaledHeight, newDownscaleLevel); (int newWidth, int newHeight, newDownscaleLevel) = CalculateScaledSize(newUnscaledWidth, newUnscaledHeight, newDownscaleLevel);
lock (_captureZones) lock (_captureZones)
{ {
UnregisterCaptureZone(captureZone); UnregisterCaptureZone(captureZone);
@ -371,11 +371,17 @@ public sealed class DX11ScreenCapture : IScreenCapture
} }
} }
private (int width, int height) CalculateScaledSize(int width, int height, int downscaleLevel) private (int width, int height, int downscaleLevel) CalculateScaledSize(int width, int height, int downscaleLevel)
{ {
if (downscaleLevel > 0) if (downscaleLevel > 0)
for (int i = 0; i < downscaleLevel; i++) for (int i = 0; i < downscaleLevel; i++)
{ {
if ((width <= 1) && (height <= 1))
{
downscaleLevel = i;
break;
}
width /= 2; width /= 2;
height /= 2; height /= 2;
} }
@ -383,7 +389,7 @@ public sealed class DX11ScreenCapture : IScreenCapture
if (width < 1) width = 1; if (width < 1) width = 1;
if (height < 1) height = 1; if (height < 1) height = 1;
return (width, height); return (width, height, downscaleLevel);
} }
private void ValidateCaptureZoneAndThrow(int x, int y, int width, int height) private void ValidateCaptureZoneAndThrow(int x, int y, int width, int height)