From 253432bfc7c2a1dae224a03fb3055de19743ec67 Mon Sep 17 00:00:00 2001
From: Ton Roosendaal <ton@blender.org>
Date: Wed, 20 Dec 2006 17:57:56 +0000
Subject: The Big Image refactor!

Please read:
http://www.blender3d.org/cms/Imaging.834.0.html

Or in short:

- adding MultiLayer Image support
- recoded entire Image API
- better integration of movie/sequence Images

Was a whole load of work... went down for a week to do this. So, will need
a lot of testing! Will be in irc all evening.
---
 source/blender/imbuf/intern/filter.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'source/blender/imbuf/intern/filter.c')

diff --git a/source/blender/imbuf/intern/filter.c b/source/blender/imbuf/intern/filter.c
index 343211eb6b0..fd9dac1af2b 100644
--- a/source/blender/imbuf/intern/filter.c
+++ b/source/blender/imbuf/intern/filter.c
@@ -302,3 +302,28 @@ void IMB_filter_extend(struct ImBuf *ibuf)
 	}
 }
 
+void IMB_makemipmap(ImBuf *ibuf, int use_filter)
+{
+	ImBuf *hbuf= ibuf;
+	int minsize, curmap=0;
+	
+	minsize= ibuf->x<ibuf->y?ibuf->x:ibuf->y;
+	
+	while(minsize>10 && curmap<IB_MIPMAP_LEVELS) {
+		if(use_filter) {
+			ImBuf *nbuf= IMB_allocImBuf(hbuf->x, hbuf->y, 32, IB_rect, 0);
+			IMB_filterN(nbuf, hbuf);
+			ibuf->mipmap[curmap]= IMB_onehalf(nbuf);
+			IMB_freeImBuf(nbuf);
+		}
+		else {
+			ibuf->mipmap[curmap]= IMB_onehalf(hbuf);
+		}
+		hbuf= ibuf->mipmap[curmap];
+		
+		curmap++;
+		minsize= hbuf->x<hbuf->y?hbuf->x:hbuf->y;
+	}
+}
+
+
-- 
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