From affb6a38a198d410922492026e5277794a310279 Mon Sep 17 00:00:00 2001
From: Matthew Hoops
Date: Wed, 18 May 2011 09:41:08 -0400
Subject: GRAPHICS: Add some docs and sanity checks to the YUV to RGB code

---
 graphics/yuv_to_rgb.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'graphics/yuv_to_rgb.cpp')

diff --git a/graphics/yuv_to_rgb.cpp b/graphics/yuv_to_rgb.cpp
index b1107a7475..831736cd75 100644
--- a/graphics/yuv_to_rgb.cpp
+++ b/graphics/yuv_to_rgb.cpp
@@ -203,6 +203,13 @@ namespace Graphics {
 		*((uint32 *)(d)) = (L[cr_r] | L[crb_g] | L[cb_b])
 
 void convertYUV420ToRGB(Graphics::Surface *dst, const byte *ySrc, const byte *uSrc, const byte *vSrc, int yWidth, int yHeight, int yPitch, int uvPitch) {
+	// Sanity checks
+	assert(dst && dst->pixels);
+	assert(dst->format.bytesPerPixel == 2 || dst->format.bytesPerPixel == 4);
+	assert(ySrc && uSrc && vSrc);
+	assert((yWidth & 1) == 0);
+	assert((yHeight & 1) == 0);
+
 	const YUVToRGBLookup *lookup = YUVToRGBMan.getLookup(dst->format);
 
 	byte *dstPtr = (byte *)dst->pixels;
-- 
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