23 lines
1023 B
Diff
23 lines
1023 B
Diff
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From c3fb6c90ab8b4243b752919d0e491df2a2d4f047 Mon Sep 17 00:00:00 2001
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From: Chris Spiel <cspiel@freenet.de>
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Date: Mon, 13 Oct 2014 16:08:50 +0200
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Subject: [PATCH] Fix an off-by-one error in function exportImageAlpha.
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---
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include/vigra/impexalpha.hxx | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/vigra/impexalpha.hxx b/include/vigra/impexalpha.hxx
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index 0426d67..41299fc 100644
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--- a/include/vigra/impexalpha.hxx
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+++ b/include/vigra/impexalpha.hxx
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@@ -789,7 +789,7 @@ namespace vigra
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encoder->setPixelType(pixel_type);
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- vigra_precondition(isBandNumberSupported(encoder->getFileType(), image_accessor.size(image_upper_left)),
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+ vigra_precondition(isBandNumberSupported(encoder->getFileType(), image_accessor.size(image_upper_left) + 1U),
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"exportImageAlpha(): file format does not support requested number of bands (color channels)");
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const range_t image_source_range(find_source_value_range(export_info,
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