From 62e509e9c90d728c9f65145947276f79112ab48c Mon Sep 17 00:00:00 2001
From: "Christian A. Weber" <chris@gna.ch>
Date: Tue, 2 Nov 1993 18:53:33 +0000
Subject: Initial revision

---
 BMapSupport.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 BMapSupport.c

(limited to 'BMapSupport.c')

diff --git a/BMapSupport.c b/BMapSupport.c
new file mode 100644
index 0000000..569cdf3
--- /dev/null
+++ b/BMapSupport.c
@@ -0,0 +1,90 @@
+/*
+**  Bobi - The Ultimate Amiga Bob Manipulator
+**
+**  BMapSupport.c - Erstellen und Vernichten von BitMaps und ByteMaps
+**
+**  COPYRIGHT (C) 1989-1993 BY CHRISTIAN A. WEBER, ZUERICH, SWITZERLAND.
+**  ALL RIGHTS RESERVED. NO PART OF THIS SOFTWARE MAY BE COPIED, REPRODUCED,
+**  OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, WITHOUT THE PRIOR WRITTEN
+**  PERMISSION OF THE AUTHOR. NO WARRANTY. USE AT YOUR OWN RISK.
+*/
+
+#include <proto/exec.h>
+#include <exec/memory.h>
+#include <graphics/gfx.h>
+#include <proto/graphics.h>
+#include "ByteMap.h"
+
+
+struct BitMap *MakeBitMap(WORD width, WORD height, WORD depth)
+{
+	register long i;
+	register struct BitMap *b;
+	register WORD planesize;
+
+	if(b = AllocMem(sizeof(struct BitMap),MEMF_CLEAR))
+	{
+		InitBitMap(b,depth,width,height);
+		planesize=b->BytesPerRow*b->Rows;
+
+		if(b->Planes[0]=AllocMem(planesize*depth,MEMF_CHIP|MEMF_CLEAR))
+		{
+			for(i=1; i<depth; ++i)
+				b->Planes[i] = b->Planes[0]+i*planesize;
+		}
+		else
+		{
+			FreeMem(b,sizeof(*b));
+			b=0;
+		}
+	}
+	return(b);
+}
+
+
+/*************************************************************************/
+
+void MyFreeBitMap(struct BitMap *b)
+{
+	FreeMem(b->Planes[0],b->BytesPerRow*b->Rows*b->Depth);
+	FreeMem(b,sizeof(*b));
+}
+
+
+/*************************************************************************/
+
+struct ByteMap *MakeByteMap(register WORD width,register WORD height)
+{
+	register struct ByteMap *b;
+	register long planesize;
+
+	planesize = width*height;
+
+	if(b = AllocMem(sizeof(struct ByteMap),MEMF_CLEAR))
+	{
+		if(b->Plane = AllocMem(planesize,MEMF_CLEAR))
+		{
+			b->Width = width;
+			b->Height = height;
+			b->PlaneSize = planesize;
+		}
+		else
+		{
+			FreeMem(b,sizeof(*b));
+			b=0;
+		}
+	}
+	return b;
+}
+
+
+/*************************************************************************/
+
+void FreeByteMap(struct ByteMap *b)
+{
+	if(b->Plane)
+	{
+		FreeMem(b->Plane,b->PlaneSize);
+	}
+	FreeMem(b,sizeof(*b));
+}
-- 
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