diff options
Diffstat (limited to 'WebCore/html/canvas/CanvasRenderingContext2D.cpp')
| -rw-r--r-- | WebCore/html/canvas/CanvasRenderingContext2D.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/WebCore/html/canvas/CanvasRenderingContext2D.cpp b/WebCore/html/canvas/CanvasRenderingContext2D.cpp index b1d7b23..a2d9e98 100644 --- a/WebCore/html/canvas/CanvasRenderingContext2D.cpp +++ b/WebCore/html/canvas/CanvasRenderingContext2D.cpp @@ -1582,6 +1582,15 @@ PassRefPtr<ImageData> CanvasRenderingContext2D::getImageData(float sx, float sy, return 0; } + if (sw < 0) { + sx += sw; + sw = -sw; + } + if (sh < 0) { + sy += sh; + sh = -sh; + } + FloatRect unscaledRect(sx, sy, sw, sh); IntRect scaledRect = canvas()->convertLogicalToDevice(unscaledRect); if (scaledRect.width() < 1) |