From eeb39592599815875a736fdbef67204c2036e935 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sat, 14 Jul 2012 06:03:04 +0200
Subject: GRAPHICS: Add an in-place Surface PixelFormat conversion.

---
 graphics/surface.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'graphics/surface.h')

diff --git a/graphics/surface.h b/graphics/surface.h
index eb8d1ac42e..eaf62f84eb 100644
--- a/graphics/surface.h
+++ b/graphics/surface.h
@@ -134,6 +134,20 @@ struct Surface {
 	 */
 	void copyFrom(const Surface &surf);
 
+	/**
+	 * Convert the data to another pixel format.
+	 *
+	 * This works in-place. This means it will not create an additional buffer
+	 * for the conversion process. The value of pixels might change though.
+	 *
+	 * Note that you should only use this, when you created the Surface data via
+	 * create! Otherwise this function has undefined behavior.
+	 *
+	 * @param dstFormat The desired format
+	 * @param palette   The palette (in RGB888), if the source format has a Bpp of 1
+	 */
+	void convertToInPlace(const PixelFormat &dstFormat, const byte *palette = 0);
+
 	/**
 	 * Convert the data to another pixel format.
 	 *
-- 
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