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[Gnash-commit] gnash ChangeLog backend/render_handler_agg.cpp [release_0
From: |
Udo Giacomozzi |
Subject: |
[Gnash-commit] gnash ChangeLog backend/render_handler_agg.cpp [release_0_7_2] |
Date: |
Sat, 04 Nov 2006 12:43:50 +0000 |
CVSROOT: /cvsroot/gnash
Module name: gnash
Branch: release_0_7_2
Changes by: Udo Giacomozzi <udog> 06/11/04 12:43:50
Modified files:
. : ChangeLog
backend : render_handler_agg.cpp
Log message:
optimized alpha mask clearing
CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/gnash/ChangeLog?cvsroot=gnash&only_with_tag=release_0_7_2&r1=1.1412.2.73&r2=1.1412.2.74
http://cvs.savannah.gnu.org/viewcvs/gnash/backend/render_handler_agg.cpp?cvsroot=gnash&only_with_tag=release_0_7_2&r1=1.29.2.12&r2=1.29.2.13
Patches:
Index: ChangeLog
===================================================================
RCS file: /cvsroot/gnash/gnash/ChangeLog,v
retrieving revision 1.1412.2.73
retrieving revision 1.1412.2.74
diff -u -b -r1.1412.2.73 -r1.1412.2.74
--- ChangeLog 4 Nov 2006 12:24:35 -0000 1.1412.2.73
+++ ChangeLog 4 Nov 2006 12:43:50 -0000 1.1412.2.74
@@ -1,7 +1,7 @@
2006-11-04 Udo Giacomozzi <address@hidden>
* backend/render_handler_agg.cpp: removed compatibility include as
- it is not enough anyway; optimized screen clearing
+ it is not enough anyway; optimized screen and mask clearing
2006-11-04 Markus Gothe <address@hidden>
Index: backend/render_handler_agg.cpp
===================================================================
RCS file: /cvsroot/gnash/gnash/backend/render_handler_agg.cpp,v
retrieving revision 1.29.2.12
retrieving revision 1.29.2.13
diff -u -b -r1.29.2.12 -r1.29.2.13
--- backend/render_handler_agg.cpp 4 Nov 2006 12:24:36 -0000
1.29.2.12
+++ backend/render_handler_agg.cpp 4 Nov 2006 12:43:50 -0000
1.29.2.13
@@ -16,7 +16,7 @@
-/* $Id: render_handler_agg.cpp,v 1.29.2.12 2006/11/04 12:24:36 udog Exp $ */
+/* $Id: render_handler_agg.cpp,v 1.29.2.13 2006/11/04 12:43:50 udog Exp $ */
// Original version by Udo Giacomozzi and Hannes Mayr,
// INDUNET GmbH (www.indunet.it)
@@ -261,7 +261,22 @@
m_rbuf.attach(m_buffer, width, height, width);
- m_rbase.clear(agg::gray8(0));
+ // NOTE: The buffer is *not* cleared. The clear() function must be called
+ // to clear the buffer (alpha=0). The reason is to avoid clearing the
+ // whole mask when only a small portion is really used.
+ }
+
+ void clear(unsigned int left, unsigned int top, unsigned int width,
+ unsigned int height) {
+
+ if (!width) return;
+
+ unsigned int y;
+ const unsigned int max_y = top+height; // to be exact, it's one off the
max.
+ const agg::gray8 black(0);
+
+ for (y=top; y<max_y; y++)
+ m_pixf.copy_hline(left, y, width, black);
}
~agg_alpha_mask()
@@ -634,6 +649,9 @@
agg_alpha_mask* new_mask = new agg_alpha_mask(xres, yres);
+ new_mask->clear(m_clip_xmin, m_clip_ymin,
+ m_clip_xmax-m_clip_xmin+1, m_clip_ymax-m_clip_ymin+1);
+
m_alpha_mask.push_back(new_mask);
}