[oe-commits] Martin Jansa : orrery: use GdkPixbuf for more effective drawing

[git version control]

Module: openembedded.git
Branch: master
Commit: 664ad859bca00d27c18fc39953fd7730de42ed7d
URL:    http://gitweb.openembedded.net/?p=openembedded.git&a=commit;h=664ad859bca00d27c18fc39953fd7730de42ed7d

Author: Martin Jansa <Martin.Jansa at gmail.com>
Date:   Mon Nov 15 22:39:46 2010 +0100

orrery: use GdkPixbuf for more effective drawing

* also s/files/orrery/ for faster lookup

Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>

---

 recipes/orrery/{files => orrery}/orrery.png |  Bin 19475 -> 19475 bytes
 recipes/orrery/orrery/use.GdkPixbuf.patch   |   59 +++++++++++++++++++++++++++
 recipes/orrery/orrery_2.7.bb                |    3 +-
 3 files changed, 61 insertions(+), 1 deletions(-)

diff --git a/recipes/orrery/orrery/use.GdkPixbuf.patch b/recipes/orrery/orrery/use.GdkPixbuf.patch
new file mode 100644
index 0000000..92d194d
--- /dev/null
+++ b/recipes/orrery/orrery/use.GdkPixbuf.patch
@@ -0,0 +1,59 @@
+From: Benjamin Deering
+Subject: orrery crashing X
+Date: Thursday, September 2, 2010 - 5:25 pm
+Link: http://kerneltrap.org/mailarchive/openmoko-community/2010/9/3/13218
+
+diff -uNr orrery.orig//orrery.c orrery/orrery.c
+--- orrery.orig//orrery.c	2009-11-30 06:59:44.000000000 +0100
++++ orrery/orrery.c	2010-11-15 22:33:17.000000000 +0100
+@@ -1238,12 +1238,44 @@
+     }
+     currentEntry = currentEntry->forwardPointer;
+   }
+-  if (nDarkGreyPoints > 0)
+-    gdk_draw_points(pixmap, darkGreyGC, darkGreyPoints, nDarkGreyPoints);
+-  if (nGreyPoints > 0)
+-    gdk_draw_points(pixmap, greyGC, greyPoints, nGreyPoints);
+-  if (nWhitePoints > 0)
+-    gdk_draw_points(pixmap, whiteGC, whitePoints, nWhitePoints);
++  GdkPixbuf* starDrawingBuf = gdk_pixbuf_get_from_drawable( NULL,
++                                                            pixmap,
++                                                            gdk_colormap_get_system()
++                                                            , 0, 0, 0, 0, displayWidth, displayHeight);
++  g_assert (gdk_pixbuf_get_bits_per_sample (starDrawingBuf) == 8);
++  guchar* p;
++  int rowstride = gdk_pixbuf_get_rowstride (starDrawingBuf);
++  guchar* pixels = gdk_pixbuf_get_pixels (starDrawingBuf);
++  int n_channels = gdk_pixbuf_get_n_channels (starDrawingBuf);
++  GdkGCValues starGCval;
++  GdkColor starColor;
++  int pointNum;
++  gdk_gc_get_values(darkGreyGC, &starGCval);
++  gdk_colormap_query_color( gdk_gc_get_colormap(darkGreyGC),starGCval.foreground.pixel, &starColor );
++  for( pointNum = 0; pointNum < nDarkGreyPoints; pointNum++) {
++    p = pixels + darkGreyPoints[pointNum].y * rowstride + darkGreyPoints[pointNum].x * n_channels;
++    p[0] = starColor.red & 0xff;
++    p[1] = starColor.green & 0xff;
++    p[2] = starColor.blue & 0xff;
++  }
++  gdk_gc_get_values(greyGC, &starGCval);
++  gdk_colormap_query_color( gdk_gc_get_colormap(greyGC), starGCval.foreground.pixel, &starColor );
++  for( pointNum = 0; pointNum < nGreyPoints; pointNum++) {
++    p = pixels + greyPoints[pointNum].y * rowstride + greyPoints[pointNum].x * n_channels;
++    p[0] = starColor.red & 0xff;
++    p[1] = starColor.green & 0xff;
++    p[2] = starColor.blue & 0xff;
++  }
++  gdk_gc_get_values(whiteGC, &starGCval);
++  gdk_colormap_query_color( gdk_gc_get_colormap(whiteGC), starGCval.foreground.pixel, &starColor );
++  for( pointNum = 0; pointNum < nWhitePoints; pointNum++) {
++    p = pixels + whitePoints[pointNum].y * rowstride + whitePoints[pointNum].x * n_channels;
++    p[0] = starColor.red & 0xff;
++    p[1] = starColor.green & 0xff;
++    p[2] = starColor.blue & 0xff;
++  }
++  gdk_draw_pixbuf ( pixmap , NULL , starDrawingBuf,
++            0, 0, 0, 0, displayWidth, displayHeight, GDK_RGB_DITHER_NORMAL, 0, 0 ) ;
+ }
+ 
+ void makeTimeString(char *string)
diff --git a/recipes/orrery/orrery_2.7.bb b/recipes/orrery/orrery_2.7.bb
index 7b93ee9..86a916f 100644
--- a/recipes/orrery/orrery_2.7.bb
+++ b/recipes/orrery/orrery_2.7.bb
@@ -2,11 +2,12 @@ DESCRIPTION = "Astronomical application which displays the night sky"
 HOMEPAGE    = "http://projects.openmoko.org/projects/orrery/"
 SECTION = "x11/scientific"
 PV = "2.7"
-PR = "r0"
+PR = "r1"
 inherit autotools
 
 SRC_URI = "http://projects.openmoko.org/frs/download.php/923/orrery_2.7_clean.tar.gz;name=tarball \
            file://orrery.png \
+           file://use.GdkPixbuf.patch \
           "
 
 SRC_URI[tarball.md5sum]    = "bd62a33e7554ee1030313dfcdefcda8b"