From 0a06942e4e46783a6a56e7f42bf3e57280fe003a Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sun, 21 Feb 2016 14:41:29 +0100
Subject: GRAPHICS: Skip empty rects and empty shadows in
 VectorRendererSpec::drawSquareShadow.

---
 graphics/VectorRendererSpec.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'graphics')

diff --git a/graphics/VectorRendererSpec.cpp b/graphics/VectorRendererSpec.cpp
index 5e53e61241..b360327c55 100644
--- a/graphics/VectorRendererSpec.cpp
+++ b/graphics/VectorRendererSpec.cpp
@@ -1865,6 +1865,11 @@ drawCircleAlg(int x1, int y1, int r, PixelType color, VectorRenderer::FillMode f
 template<typename PixelType>
 void VectorRendererSpec<PixelType>::
 drawSquareShadow(int x, int y, int w, int h, int offset) {
+	// Do nothing for empty rects or no shadow offset.
+	if (w <= 0 || h <= 0 || offset <= 0) {
+		return;
+	}
+
 	PixelType *ptr = (PixelType *)_activeSurface->getBasePtr(x + w - 1, y + offset);
 	int pitch = _activeSurface->pitch / _activeSurface->format.bytesPerPixel;
 	int i, j;
-- 
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