From 8b4c96a953bf8a4cda6a1db40a94b4018b155dcf Mon Sep 17 00:00:00 2001
From: Ole Loots <ole@monochrom.net>
Date: Wed, 23 Nov 2011 22:33:02 +0000
Subject: Comment's...

svn path=/trunk/netsurf/; revision=13171
---
 atari/plot/plotter_vdi.h | 45 +++++++++++++++++++++++++++++----------------
 1 file changed, 29 insertions(+), 16 deletions(-)

diff --git a/atari/plot/plotter_vdi.h b/atari/plot/plotter_vdi.h
index b12c00d54..82cc42e54 100755
--- a/atari/plot/plotter_vdi.h
+++ b/atari/plot/plotter_vdi.h
@@ -22,21 +22,34 @@
 #include <Hermes/Hermes.h>
 
 struct s_vdi_priv_data {
-	short bufops;
-	void * buf_packed;		/* temp buffer for bitmap conversion */
-	int size_buf_packed;	
-	void * buf_planar;		/* temp buffer for bitmap conversion */
+	short bufops;
+	/* temp buffer for bitmap conversion: */
+	void * buf_packed;
+	int size_buf_packed;
+
+	/* temp buffer for bitmap conversion: */
+	void * buf_planar;
 	int size_buf_planar;
-	MFDB buf_scr;					/* buffer for plot operations that require device format  */
-	int size_buf_scr;  
-	struct bitmap * buf_scr_compat;
-	HermesFormat vfmt;		/* framebuffer format */
-												/* no screen format here, hermes may not suitable for it */
-	HermesFormat nsfmt;		/* netsurf bitmap format */
+
+	/* buffer for plot operations that require device format, */
+	/* currently used for transparent mfdb blits: */
+	MFDB buf_scr;
+	int size_buf_scr;
+	struct bitmap * buf_scr_compat;
+
+	/* intermediate bitmap format */
+	HermesFormat vfmt;
+
+	/* no screen format here, hermes may not suitable for it */
+
+	/* netsurf source bitmap format */
+	HermesFormat nsfmt;
 };
-
-#define CONV_KEEP_LIMIT 512000	/* how much memory should be kept allocated for temp. conversion bitmaps? */
-#define CONV_BLOCK_SIZE	32000	/* how much memory to allocate if some is needed */
+
+/* how much memory should be kept allocated for temp. conversion bitmaps: */
+#define CONV_KEEP_LIMIT 512000
+/* how much memory to allocate if some is needed: */
+#define CONV_BLOCK_SIZE	32000
 
 /* this is an shortcut cast to access the members of the s_vdi_priv_data */
 #define DUMMY_PRIV(self) ((struct s_vdi_priv_data*)self->priv_data)
@@ -51,9 +64,9 @@ int ctor_plotter_vdi( GEM_PLOTTER p );
 * param y absolute screen coords
 * param w width
 * param h height
-* 
-* This creates an snapshot in RGBA format (NetSurf's native format) 
-*  
+*
+* This creates an snapshot in RGBA format (NetSurf's native format)
+*
 */
 static struct bitmap * snapshot_create(GEM_PLOTTER self, int x, int y, int w, int h);
 
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