From ff90d39556f8c583c0861a50c746f6b2bf1c0ef3 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Thu, 12 Feb 2004 07:37:50 +0000
Subject: [PATCH] Convert a few inner loops to use liboil.  This is currently
 optional, and is only enabled if liboil is present (duh!).

Original commit message from CVS:
Convert a few inner loops to use liboil.  This is currently
optional, and is only enabled if liboil is present (duh!).
* configure.ac: Check for liboil-0.1
* gst/intfloat/Makefile.am:
* gst/intfloat/gstint2float.c: (conv_f32_s16), (scalarmult_f32),
(gst_int2float_chain_gint16):
* gst/videofilter/Makefile.am:
* gst/videofilter/gstvideobalance.c: (gst_videobalance_class_init),
(tablelookup_u8), (gst_videobalance_planar411):
* gst/videotestsrc/Makefile.am:
* gst/videotestsrc/gstvideotestsrc.c: (plugin_init):
* gst/videotestsrc/videotestsrc.c: (splat_u8), (paint_hline_YUY2),
(paint_hline_IYU2), (paint_hline_str4), (paint_hline_str3),
(paint_hline_RGB565), (paint_hline_xRGB1555):
---
 ChangeLog                         | 17 +++++++++++++++++
 configure.ac                      |  8 ++++++++
 gst/videofilter/Makefile.am       |  4 ++--
 gst/videofilter/gstvideobalance.c | 25 ++++++++++++++++++++++---
 4 files changed, 49 insertions(+), 5 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a2cb26f1e2..a768df7114 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+2004-02-11  David Schleef  <ds@schleef.org>
+
+	Convert a few inner loops to use liboil.  This is currently
+	optional, and is only enabled if liboil is present (duh!).
+	* configure.ac: Check for liboil-0.1
+	* gst/intfloat/Makefile.am:
+	* gst/intfloat/gstint2float.c: (conv_f32_s16), (scalarmult_f32),
+	(gst_int2float_chain_gint16):
+	* gst/videofilter/Makefile.am:
+	* gst/videofilter/gstvideobalance.c: (gst_videobalance_class_init),
+	(tablelookup_u8), (gst_videobalance_planar411):
+	* gst/videotestsrc/Makefile.am:
+	* gst/videotestsrc/gstvideotestsrc.c: (plugin_init):
+	* gst/videotestsrc/videotestsrc.c: (splat_u8), (paint_hline_YUY2),
+	(paint_hline_IYU2), (paint_hline_str4), (paint_hline_str3),
+	(paint_hline_RGB565), (paint_hline_xRGB1555):
+
 2004-02-11  David Schleef  <ds@schleef.org>
 
 	* ext/lcs/gstcolorspace.c: (colorspace_find_lcs_format),
diff --git a/configure.ac b/configure.ac
index db3448eacd..75bf8c713f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -337,6 +337,14 @@ if test "x$HAVE_GDK_LOADERS" == "xyes"; then
 fi
 AM_CONDITIONAL(HAVE_GDK_LOADERS, test "x$HAVE_GDK_LOADERS" = "xyes")
 
+PKG_CHECK_MODULES(LIBOIL, liboil-0.1, HAVE_LIBOIL=yes, HAVE_LIBOIL=no)
+AC_SUBST(LIBOIL_CFLAGS)
+AC_SUBST(LIBOIL_LIBS)
+if test "x${HAVE_LIBOIL}" = xyes ; then
+  #AC_DEFINE_UNQUOTED(HAVE_LIBOIL, 1, [Define if liboil is being used])
+  true
+fi
+
 dnl ===========================================================================
 dnl ============================= gst plug-ins ================================
 dnl ===========================================================================
diff --git a/gst/videofilter/Makefile.am b/gst/videofilter/Makefile.am
index 437eefcbfe..2532300432 100644
--- a/gst/videofilter/Makefile.am
+++ b/gst/videofilter/Makefile.am
@@ -24,9 +24,9 @@ libgstvideoflip_la_LIBADD =
 libgstvideoflip_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 
 libgstvideobalance_la_SOURCES = gstvideobalance.c
-libgstvideobalance_la_CFLAGS = $(GST_CFLAGS)
+libgstvideobalance_la_CFLAGS = $(GST_CFLAGS) $(LIBOIL_CFLAGS)
 libgstvideobalance_la_LIBADD = $(top_builddir)/gst-libs/gst/libgstinterfaces-$(GST_MAJORMINOR).la
-libgstvideobalance_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -lm
+libgstvideobalance_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(LIBOIL_LIBS) -lm
 
 libgstgamma_la_SOURCES = gstgamma.c
 libgstgamma_la_CFLAGS = $(GST_CFLAGS)
diff --git a/gst/videofilter/gstvideobalance.c b/gst/videofilter/gstvideobalance.c
index d3084075f7..ddbf76b94a 100644
--- a/gst/videofilter/gstvideobalance.c
+++ b/gst/videofilter/gstvideobalance.c
@@ -29,6 +29,9 @@
 
 /*#define DEBUG_ENABLED */
 #include <gstvideobalance.h>
+#ifdef HAVE_LIBOIL
+#include <liboil/liboil.h>
+#endif
 #include <string.h>
 #include <math.h>
 
@@ -197,6 +200,10 @@ gst_videobalance_class_init (gpointer g_class, gpointer class_data)
   gobject_class->dispose = gst_videobalance_dispose;
 
   videofilter_class->setup = gst_videobalance_setup;
+
+#ifdef HAVE_LIBOIL
+  oil_init();
+#endif
 }
 
 static void
@@ -480,6 +487,19 @@ gst_videobalance_update_tables_planar411 (GstVideobalance *vb)
   }
 }
 
+#ifndef HAVE_LIBOIL
+void tablelookup_u8 (guint8 *dest, int dstr, guint8 *src, int sstr,
+    guint8 *table, int tstr, int n)
+{
+  int i;
+  for(i=0;i<n;i++){
+    *dest = table[*src * tstr];
+    dest += dstr;
+    src += sstr;
+  }
+}
+#endif
+
 static void gst_videobalance_planar411(GstVideofilter *videofilter,
     void *dest, void *src)
 {
@@ -504,9 +524,8 @@ static void gst_videobalance_planar411(GstVideofilter *videofilter,
     guint8 *csrc = src;
 
     for(y=0;y<height;y++) {
-      for(x=0;x<width;x++) {
-        cdest[y*width + x] = videobalance->tabley[csrc[y*width + x]];
-      }
+      tablelookup_u8 (cdest + y*width, 1, csrc + y*width, 1,
+          videobalance->tabley, 1, width);
     }
   }