2004-01-11 21:52:10 +00:00
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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* Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* This file was (probably) generated from
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* gstvideotemplate.c,v 1.12 2004/01/07 21:07:12 ds Exp
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* and
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* make_filter,v 1.6 2004/01/07 21:33:01 ds Exp
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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2004-07-27 21:51:32 +00:00
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#include "gstvideofilter.h"
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2004-01-11 21:52:10 +00:00
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#include <string.h>
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#include <math.h>
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#define GST_TYPE_GAMMA \
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(gst_gamma_get_type())
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#define GST_GAMMA(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GAMMA,GstGamma))
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#define GST_GAMMA_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GAMMA,GstGammaClass))
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#define GST_IS_GAMMA(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GAMMA))
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2006-09-16 21:57:29 +00:00
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#define GST_IS_GAMMA_CLASS(klass) \
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2004-01-11 21:52:10 +00:00
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GAMMA))
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typedef struct _GstGamma GstGamma;
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typedef struct _GstGammaClass GstGammaClass;
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2004-03-14 22:34:33 +00:00
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struct _GstGamma
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{
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2004-01-11 21:52:10 +00:00
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GstVideofilter videofilter;
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double gamma;
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2004-02-24 21:23:40 +00:00
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double gamma_r, gamma_g, gamma_b;
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2004-01-11 21:52:10 +00:00
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guint8 gamma_table[256];
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2004-02-24 21:23:40 +00:00
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guint8 gamma_table_r[256];
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guint8 gamma_table_g[256];
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guint8 gamma_table_b[256];
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2004-01-11 21:52:10 +00:00
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};
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2004-03-14 22:34:33 +00:00
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struct _GstGammaClass
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{
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2004-01-11 21:52:10 +00:00
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GstVideofilterClass parent_class;
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};
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/* GstGamma signals and args */
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2004-03-14 22:34:33 +00:00
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enum
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{
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2004-01-11 21:52:10 +00:00
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/* FILL ME */
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LAST_SIGNAL
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};
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2004-03-14 22:34:33 +00:00
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enum
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{
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2004-01-11 21:52:10 +00:00
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ARG_0,
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ARG_GAMMA,
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2004-02-24 21:23:40 +00:00
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ARG_GAMMA_R,
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ARG_GAMMA_G,
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2004-05-21 22:39:30 +00:00
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ARG_GAMMA_B
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/* FILL ME */
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2004-01-11 21:52:10 +00:00
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};
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2004-03-14 22:34:33 +00:00
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static void gst_gamma_base_init (gpointer g_class);
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static void gst_gamma_class_init (gpointer g_class, gpointer class_data);
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static void gst_gamma_init (GTypeInstance * instance, gpointer g_class);
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2004-01-11 21:52:10 +00:00
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2004-03-14 22:34:33 +00:00
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static void gst_gamma_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gamma_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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2004-01-11 21:52:10 +00:00
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2004-03-14 22:34:33 +00:00
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static void gst_gamma_planar411 (GstVideofilter * videofilter, void *dest,
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void *src);
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static void gst_gamma_rgb24 (GstVideofilter * videofilter, void *dest,
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void *src);
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static void gst_gamma_rgb32 (GstVideofilter * videofilter, void *dest,
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void *src);
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static void gst_gamma_setup (GstVideofilter * videofilter);
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static void gst_gamma_calculate_tables (GstGamma * gamma);
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2004-01-11 21:52:10 +00:00
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GType
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gst_gamma_get_type (void)
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{
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static GType gamma_type = 0;
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if (!gamma_type) {
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static const GTypeInfo gamma_info = {
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2004-03-14 22:34:33 +00:00
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sizeof (GstGammaClass),
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2004-01-11 21:52:10 +00:00
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gst_gamma_base_init,
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NULL,
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gst_gamma_class_init,
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NULL,
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NULL,
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2004-03-14 22:34:33 +00:00
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sizeof (GstGamma),
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2004-01-11 21:52:10 +00:00
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0,
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gst_gamma_init,
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};
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2004-03-15 19:32:27 +00:00
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2004-03-14 22:34:33 +00:00
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gamma_type = g_type_register_static (GST_TYPE_VIDEOFILTER,
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2004-03-15 19:32:27 +00:00
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"GstGamma", &gamma_info, 0);
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2004-01-11 21:52:10 +00:00
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}
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return gamma_type;
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}
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static GstVideofilterFormat gst_gamma_formats[] = {
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2004-03-14 22:34:33 +00:00
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{"I420", 12, gst_gamma_planar411,},
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{"RGB ", 24, gst_gamma_rgb24, 24, G_BIG_ENDIAN, 0xff0000, 0xff00, 0xff},
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{"RGB ", 32, gst_gamma_rgb32, 24, G_BIG_ENDIAN, 0x00ff00, 0xff0000,
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0xff000000},
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2004-01-11 21:52:10 +00:00
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};
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2004-03-14 22:34:33 +00:00
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2004-01-11 21:52:10 +00:00
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static void
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gst_gamma_base_init (gpointer g_class)
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{
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Define GstElementDetails as const and also static (when defined as global)
Original commit message from CVS:
* ext/aalib/gstaasink.c:
* ext/annodex/gstcmmldec.c:
* ext/annodex/gstcmmlenc.c:
* ext/cairo/gsttextoverlay.c:
* ext/cairo/gsttimeoverlay.c:
* ext/cdio/gstcdiocddasrc.c:
* ext/dv/gstdvdec.c:
* ext/dv/gstdvdemux.c:
* ext/esd/esdmon.c:
* ext/esd/esdsink.c:
* ext/flac/gstflacenc.c:
* ext/flac/gstflactag.c:
* ext/gconf/gstgconfaudiosink.c: (gst_gconf_audio_sink_base_init):
* ext/gconf/gstgconfaudiosrc.c: (gst_gconf_audio_src_base_init):
* ext/gconf/gstgconfvideosink.c: (gst_gconf_video_sink_base_init):
* ext/gconf/gstgconfvideosrc.c: (gst_gconf_video_src_base_init):
* ext/gdk_pixbuf/pixbufscale.c:
* ext/hal/gsthalaudiosink.c: (gst_hal_audio_sink_base_init):
* ext/hal/gsthalaudiosrc.c: (gst_hal_audio_src_base_init):
* ext/jpeg/gstjpegdec.c:
* ext/jpeg/gstjpegenc.c:
* ext/jpeg/gstsmokedec.c:
* ext/jpeg/gstsmokeenc.c:
* ext/libcaca/gstcacasink.c:
* ext/libmng/gstmngdec.c:
* ext/libmng/gstmngenc.c:
* ext/libpng/gstpngdec.c:
* ext/libpng/gstpngenc.c:
* ext/mikmod/gstmikmod.c:
* ext/raw1394/gstdv1394src.c:
* ext/shout2/gstshout2.c: (gst_shout2send_init):
* ext/shout2/gstshout2.h:
* ext/speex/gstspeexdec.c:
* ext/speex/gstspeexenc.c:
* gst/alpha/gstalpha.c:
* gst/alpha/gstalphacolor.c:
* gst/apetag/gstapedemux.c:
* gst/auparse/gstauparse.c:
* gst/autodetect/gstautoaudiosink.c:
(gst_auto_audio_sink_base_init):
* gst/autodetect/gstautovideosink.c:
(gst_auto_video_sink_base_init):
* gst/avi/gstavidemux.c: (gst_avi_demux_base_init):
* gst/avi/gstavimux.c: (gst_avimux_base_init):
* gst/cutter/gstcutter.c:
* gst/debug/breakmydata.c:
* gst/debug/efence.c:
* gst/debug/gstnavigationtest.c:
* gst/debug/gstnavseek.c:
* gst/debug/negotiation.c:
* gst/debug/progressreport.c:
* gst/debug/testplugin.c:
* gst/effectv/gstaging.c:
* gst/effectv/gstdice.c:
* gst/effectv/gstedge.c:
* gst/effectv/gstquark.c:
* gst/effectv/gstrev.c:
* gst/effectv/gstshagadelic.c:
* gst/effectv/gstvertigo.c:
* gst/effectv/gstwarp.c:
* gst/flx/gstflxdec.c:
* gst/goom/gstgoom.c:
* gst/icydemux/gsticydemux.c:
* gst/id3demux/gstid3demux.c:
* gst/interleave/deinterleave.c:
* gst/interleave/interleave.c:
* gst/law/alaw-decode.c: (gst_alawdec_base_init):
* gst/law/alaw-encode.c: (gst_alawenc_base_init):
* gst/law/mulaw-decode.c: (gst_mulawdec_base_init):
* gst/law/mulaw-encode.c: (gst_mulawenc_base_init):
* gst/level/gstlevel.c:
* gst/matroska/matroska-demux.c: (gst_matroska_demux_base_init):
* gst/matroska/matroska-mux.c: (gst_matroska_mux_base_init):
* gst/median/gstmedian.c:
* gst/monoscope/gstmonoscope.c:
* gst/multipart/multipartdemux.c:
* gst/multipart/multipartmux.c:
* gst/oldcore/gstaggregator.c:
* gst/oldcore/gstfdsink.c:
* gst/oldcore/gstmd5sink.c:
* gst/oldcore/gstmultifilesrc.c:
* gst/oldcore/gstpipefilter.c:
* gst/oldcore/gstshaper.c:
* gst/oldcore/gststatistics.c:
* gst/rtp/gstasteriskh263.c:
* gst/rtp/gstrtpL16depay.c:
* gst/rtp/gstrtpL16pay.c:
* gst/rtp/gstrtpamrdepay.c:
* gst/rtp/gstrtpamrpay.c:
* gst/rtp/gstrtpdepay.c:
* gst/rtp/gstrtpgsmpay.c:
* gst/rtp/gstrtph263pay.c:
* gst/rtp/gstrtph263pdepay.c:
* gst/rtp/gstrtph263ppay.c:
* gst/rtp/gstrtpilbcdepay.c:
* gst/rtp/gstrtpmp4gpay.c:
* gst/rtp/gstrtpmp4vdepay.c:
* gst/rtp/gstrtpmp4vpay.c:
* gst/rtp/gstrtpmpadepay.c:
* gst/rtp/gstrtpmpapay.c:
* gst/rtp/gstrtppcmadepay.c:
* gst/rtp/gstrtppcmapay.c:
* gst/rtp/gstrtppcmudepay.c:
* gst/rtp/gstrtppcmupay.c:
* gst/rtp/gstrtpspeexdepay.c:
* gst/rtp/gstrtpspeexpay.c:
* gst/rtsp/gstrtpdec.c:
* gst/rtsp/gstrtspsrc.c:
* gst/smpte/gstsmpte.c:
* gst/udp/gstdynudpsink.c:
* gst/udp/gstmultiudpsink.c:
* gst/udp/gstudpsink.c:
* gst/udp/gstudpsrc.c:
* gst/videobox/gstvideobox.c:
* gst/videofilter/gstgamma.c: (gst_gamma_base_init):
* gst/videofilter/gstvideobalance.c:
* gst/videofilter/gstvideoflip.c:
* gst/videofilter/gstvideotemplate.c:
(gst_videotemplate_base_init):
* gst/videomixer/videomixer.c:
* gst/wavparse/gstwavparse.c: (gst_wavparse_base_init),
(gst_wavparse_class_init), (gst_wavparse_dispose),
(gst_wavparse_reset), (gst_wavparse_init),
(gst_wavparse_perform_seek), (gst_wavparse_peek_chunk_info),
(gst_wavparse_peek_chunk), (gst_wavparse_stream_headers),
(gst_wavparse_parse_stream_init), (gst_wavparse_send_event),
(gst_wavparse_add_src_pad), (gst_wavparse_stream_data),
(gst_wavparse_chain), (gst_wavparse_srcpad_event),
(gst_wavparse_sink_activate), (gst_wavparse_sink_activate_pull),
(gst_wavparse_change_state):
* gst/wavparse/gstwavparse.h:
* sys/oss/gstossmixerelement.c:
* sys/oss/gstosssink.c:
* sys/oss/gstosssrc.c:
* sys/osxaudio/gstosxaudioelement.c:
* sys/osxaudio/gstosxaudiosink.c:
* sys/osxaudio/gstosxaudiosrc.c:
* sys/sunaudio/gstsunaudiomixer.c:
* sys/sunaudio/gstsunaudiosink.c:
Define GstElementDetails as const and also static (when defined as
global)
2006-04-25 21:39:46 +00:00
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static const GstElementDetails gamma_details =
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2006-03-30 15:37:05 +00:00
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GST_ELEMENT_DETAILS ("Video gamma correction",
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2004-03-14 22:34:33 +00:00
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"Filter/Effect/Video",
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"Adjusts gamma on a video stream",
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"Arwed v. Merkatz <v.merkatz@gmx.net");
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2004-01-11 21:52:10 +00:00
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
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int i;
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2004-03-14 22:34:33 +00:00
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2004-01-11 21:52:10 +00:00
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gst_element_class_set_details (element_class, &gamma_details);
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2004-03-14 22:34:33 +00:00
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for (i = 0; i < G_N_ELEMENTS (gst_gamma_formats); i++) {
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gst_videofilter_class_add_format (videofilter_class, gst_gamma_formats + i);
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2004-01-11 21:52:10 +00:00
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}
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gst_videofilter_class_add_pad_templates (GST_VIDEOFILTER_CLASS (g_class));
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}
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static void
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gst_gamma_class_init (gpointer g_class, gpointer class_data)
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{
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GObjectClass *gobject_class;
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GstVideofilterClass *videofilter_class;
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gobject_class = G_OBJECT_CLASS (g_class);
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videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
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2005-05-06 11:25:56 +00:00
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gobject_class->set_property = gst_gamma_set_property;
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gobject_class->get_property = gst_gamma_get_property;
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2004-03-14 22:34:33 +00:00
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g_object_class_install_property (gobject_class, ARG_GAMMA,
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g_param_spec_double ("gamma", "Gamma", "gamma",
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2004-03-15 19:32:27 +00:00
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0.01, 10, 1, G_PARAM_READWRITE));
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2004-03-14 22:34:33 +00:00
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g_object_class_install_property (gobject_class, ARG_GAMMA_R,
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g_param_spec_double ("redgamma", "Gamma_r",
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2004-03-15 19:32:27 +00:00
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"gamma value for the red channel", 0.01, 10, 1, G_PARAM_READWRITE));
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2004-03-14 22:34:33 +00:00
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g_object_class_install_property (gobject_class, ARG_GAMMA_G,
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g_param_spec_double ("greengamma", "Gamma_g",
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2004-03-15 19:32:27 +00:00
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"gamma value for the green channel", 0.01, 10, 1, G_PARAM_READWRITE));
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2004-03-14 22:34:33 +00:00
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g_object_class_install_property (gobject_class, ARG_GAMMA_B,
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g_param_spec_double ("bluegamma", "Gamma_b",
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2004-03-15 19:32:27 +00:00
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"gamma value for the blue channel", 0.01, 10, 1, G_PARAM_READWRITE));
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2004-01-11 21:52:10 +00:00
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videofilter_class->setup = gst_gamma_setup;
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}
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static void
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2004-03-14 22:34:33 +00:00
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gst_gamma_init (GTypeInstance * instance, gpointer g_class)
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2004-01-11 21:52:10 +00:00
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{
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GstGamma *gamma = GST_GAMMA (instance);
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GstVideofilter *videofilter;
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2004-03-14 22:34:33 +00:00
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GST_DEBUG ("gst_gamma_init");
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2004-01-11 21:52:10 +00:00
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|
2004-03-14 22:34:33 +00:00
|
|
|
videofilter = GST_VIDEOFILTER (gamma);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
|
|
|
/* do stuff */
|
|
|
|
gamma->gamma = 1;
|
2004-02-24 21:23:40 +00:00
|
|
|
gamma->gamma_r = 1;
|
|
|
|
gamma->gamma_g = 1;
|
|
|
|
gamma->gamma_b = 1;
|
|
|
|
gst_gamma_calculate_tables (gamma);
|
2004-01-11 21:52:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2004-03-14 22:34:33 +00:00
|
|
|
gst_gamma_set_property (GObject * object, guint prop_id, const GValue * value,
|
|
|
|
GParamSpec * pspec)
|
2004-01-11 21:52:10 +00:00
|
|
|
{
|
|
|
|
GstGamma *gamma;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
g_return_if_fail (GST_IS_GAMMA (object));
|
|
|
|
gamma = GST_GAMMA (object);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
GST_DEBUG ("gst_gamma_set_property");
|
2004-01-11 21:52:10 +00:00
|
|
|
switch (prop_id) {
|
|
|
|
case ARG_GAMMA:
|
|
|
|
gamma->gamma = g_value_get_double (value);
|
2004-02-24 21:23:40 +00:00
|
|
|
gst_gamma_calculate_tables (gamma);
|
|
|
|
break;
|
|
|
|
case ARG_GAMMA_R:
|
|
|
|
gamma->gamma_r = g_value_get_double (value);
|
|
|
|
gst_gamma_calculate_tables (gamma);
|
|
|
|
break;
|
|
|
|
case ARG_GAMMA_G:
|
|
|
|
gamma->gamma_g = g_value_get_double (value);
|
|
|
|
gst_gamma_calculate_tables (gamma);
|
|
|
|
break;
|
|
|
|
case ARG_GAMMA_B:
|
|
|
|
gamma->gamma_b = g_value_get_double (value);
|
|
|
|
gst_gamma_calculate_tables (gamma);
|
2004-01-11 21:52:10 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2004-03-14 22:34:33 +00:00
|
|
|
gst_gamma_get_property (GObject * object, guint prop_id, GValue * value,
|
|
|
|
GParamSpec * pspec)
|
2004-01-11 21:52:10 +00:00
|
|
|
{
|
|
|
|
GstGamma *gamma;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
g_return_if_fail (GST_IS_GAMMA (object));
|
|
|
|
gamma = GST_GAMMA (object);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
|
|
|
switch (prop_id) {
|
|
|
|
case ARG_GAMMA:
|
|
|
|
g_value_set_double (value, gamma->gamma);
|
2004-02-24 21:23:40 +00:00
|
|
|
break;
|
|
|
|
case ARG_GAMMA_R:
|
|
|
|
g_value_set_double (value, gamma->gamma_r);
|
|
|
|
break;
|
|
|
|
case ARG_GAMMA_G:
|
|
|
|
g_value_set_double (value, gamma->gamma_g);
|
|
|
|
break;
|
|
|
|
case ARG_GAMMA_B:
|
|
|
|
g_value_set_double (value, gamma->gamma_b);
|
2004-01-11 21:52:10 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
static gboolean
|
|
|
|
plugin_init (GstPlugin * plugin)
|
2004-01-11 21:52:10 +00:00
|
|
|
{
|
2004-03-14 22:34:33 +00:00
|
|
|
if (!gst_library_load ("gstvideofilter"))
|
2004-01-11 21:52:10 +00:00
|
|
|
return FALSE;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
return gst_element_register (plugin, "gamma", GST_RANK_NONE, GST_TYPE_GAMMA);
|
2004-01-11 21:52:10 +00:00
|
|
|
}
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
|
|
GST_VERSION_MINOR,
|
|
|
|
"gamma",
|
|
|
|
"Changes gamma on video images",
|
2005-11-14 02:13:35 +00:00
|
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
|
|
|
|
2005-07-25 14:06:15 +00:00
|
|
|
static void
|
|
|
|
gst_gamma_setup (GstVideofilter * videofilter)
|
2004-01-11 21:52:10 +00:00
|
|
|
{
|
|
|
|
GstGamma *gamma;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
g_return_if_fail (GST_IS_GAMMA (videofilter));
|
|
|
|
gamma = GST_GAMMA (videofilter);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
|
|
|
/* if any setup needs to be done, do it here */
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2004-03-14 22:34:33 +00:00
|
|
|
gst_gamma_calculate_tables (GstGamma * gamma)
|
2004-01-11 21:52:10 +00:00
|
|
|
{
|
|
|
|
int n;
|
|
|
|
double val;
|
|
|
|
double exp;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
if (gamma->gamma == 1.0 &&
|
|
|
|
gamma->gamma_r == 1.0 && gamma->gamma_g == 1.0 && gamma->gamma_b == 1.0) {
|
2004-01-11 21:52:10 +00:00
|
|
|
GST_VIDEOFILTER (gamma)->passthru = TRUE;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
GST_VIDEOFILTER (gamma)->passthru = FALSE;
|
|
|
|
|
|
|
|
exp = 1.0 / gamma->gamma;
|
|
|
|
for (n = 0; n < 256; n++) {
|
2004-03-14 22:34:33 +00:00
|
|
|
val = n / 255.0;
|
|
|
|
val = pow (val, exp);
|
2004-01-11 21:52:10 +00:00
|
|
|
val = 255.0 * val;
|
2004-03-14 22:34:33 +00:00
|
|
|
gamma->gamma_table[n] = (unsigned char) floor (val + 0.5);
|
2004-01-11 21:52:10 +00:00
|
|
|
}
|
2004-02-24 21:23:40 +00:00
|
|
|
exp = 1.0 / gamma->gamma_r;
|
|
|
|
for (n = 0; n < 256; n++) {
|
2004-03-14 22:34:33 +00:00
|
|
|
val = n / 255.0;
|
|
|
|
val = pow (val, exp);
|
2004-02-24 21:23:40 +00:00
|
|
|
val = 255.0 * val;
|
2004-03-14 22:34:33 +00:00
|
|
|
gamma->gamma_table_r[n] = (unsigned char) floor (val + 0.5);
|
2004-02-24 21:23:40 +00:00
|
|
|
}
|
|
|
|
exp = 1.0 / gamma->gamma_g;
|
|
|
|
for (n = 0; n < 256; n++) {
|
2004-03-14 22:34:33 +00:00
|
|
|
val = n / 255.0;
|
|
|
|
val = pow (val, exp);
|
2004-02-24 21:23:40 +00:00
|
|
|
val = 255.0 * val;
|
2004-03-14 22:34:33 +00:00
|
|
|
gamma->gamma_table_g[n] = (unsigned char) floor (val + 0.5);
|
2004-02-24 21:23:40 +00:00
|
|
|
}
|
|
|
|
exp = 1.0 / gamma->gamma_b;
|
|
|
|
for (n = 0; n < 256; n++) {
|
2004-03-14 22:34:33 +00:00
|
|
|
val = n / 255.0;
|
|
|
|
val = pow (val, exp);
|
2004-02-24 21:23:40 +00:00
|
|
|
val = 255.0 * val;
|
2004-03-14 22:34:33 +00:00
|
|
|
gamma->gamma_table_b[n] = (unsigned char) floor (val + 0.5);
|
2004-02-24 21:23:40 +00:00
|
|
|
}
|
2004-01-11 21:52:10 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
static void
|
|
|
|
gst_gamma_planar411 (GstVideofilter * videofilter, void *dest, void *src)
|
2004-01-11 21:52:10 +00:00
|
|
|
{
|
|
|
|
GstGamma *gamma;
|
2004-03-14 22:34:33 +00:00
|
|
|
int width = gst_videofilter_get_input_width (videofilter);
|
|
|
|
int height = gst_videofilter_get_input_height (videofilter);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
g_return_if_fail (GST_IS_GAMMA (videofilter));
|
|
|
|
gamma = GST_GAMMA (videofilter);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
memcpy (dest, src, width * height + (width / 2) * (height / 2) * 2);
|
2004-01-11 21:52:10 +00:00
|
|
|
|
|
|
|
if (gamma->gamma != 1.0) {
|
|
|
|
{
|
|
|
|
guint8 *cdest = dest;
|
|
|
|
guint8 *csrc = src;
|
2004-03-14 22:34:33 +00:00
|
|
|
int x, y;
|
|
|
|
|
|
|
|
for (y = 0; y < height; y++) {
|
2004-03-15 19:32:27 +00:00
|
|
|
for (x = 0; x < width; x++) {
|
|
|
|
cdest[y * width + x] =
|
|
|
|
gamma->gamma_table[(unsigned char) csrc[y * width + x]];
|
|
|
|
}
|
2004-01-11 21:52:10 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
static void
|
|
|
|
gst_gamma_rgb24 (GstVideofilter * videofilter, void *dest, void *src)
|
2004-02-24 21:23:40 +00:00
|
|
|
{
|
|
|
|
GstGamma *gamma;
|
|
|
|
int i;
|
|
|
|
int width, height;
|
|
|
|
guint8 *csrc = src;
|
|
|
|
guint8 *cdest = dest;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
g_return_if_fail (GST_IS_GAMMA (videofilter));
|
|
|
|
gamma = GST_GAMMA (videofilter);
|
|
|
|
|
|
|
|
width = gst_videofilter_get_input_width (videofilter);
|
|
|
|
height = gst_videofilter_get_input_height (videofilter);
|
2004-02-24 21:23:40 +00:00
|
|
|
if (gamma->gamma == 1.0) {
|
|
|
|
i = 0;
|
2004-03-14 22:34:33 +00:00
|
|
|
while (i < width * height * 3) {
|
2004-02-24 21:23:40 +00:00
|
|
|
*cdest++ = gamma->gamma_table_r[*csrc++];
|
|
|
|
*cdest++ = gamma->gamma_table_g[*csrc++];
|
|
|
|
*cdest++ = gamma->gamma_table_b[*csrc++];
|
|
|
|
i = i + 3;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
i = 0;
|
|
|
|
while (i < width * height * 3) {
|
|
|
|
*cdest++ = gamma->gamma_table[*csrc++];
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
static void
|
|
|
|
gst_gamma_rgb32 (GstVideofilter * videofilter, void *dest, void *src)
|
2004-02-24 21:23:40 +00:00
|
|
|
{
|
|
|
|
GstGamma *gamma;
|
|
|
|
int i;
|
|
|
|
int width, height;
|
|
|
|
guint8 *csrc = src;
|
|
|
|
guint8 *cdest = dest;
|
|
|
|
|
2004-03-14 22:34:33 +00:00
|
|
|
g_return_if_fail (GST_IS_GAMMA (videofilter));
|
|
|
|
gamma = GST_GAMMA (videofilter);
|
|
|
|
|
|
|
|
width = gst_videofilter_get_input_width (videofilter);
|
|
|
|
height = gst_videofilter_get_input_height (videofilter);
|
2004-02-24 21:23:40 +00:00
|
|
|
if (gamma->gamma == 1.0) {
|
|
|
|
i = 0;
|
2004-03-14 22:34:33 +00:00
|
|
|
while (i < width * height * 4) {
|
2004-02-24 21:23:40 +00:00
|
|
|
*cdest++ = gamma->gamma_table_b[*csrc++];
|
|
|
|
*cdest++ = gamma->gamma_table_g[*csrc++];
|
|
|
|
*cdest++ = gamma->gamma_table_r[*csrc++];
|
2004-03-04 20:18:44 +00:00
|
|
|
cdest++;
|
|
|
|
csrc++;
|
2004-02-24 21:23:40 +00:00
|
|
|
i = i + 4;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
i = 0;
|
|
|
|
while (i < width * height * 4) {
|
|
|
|
if ((i % 4) != 3)
|
2004-03-15 19:32:27 +00:00
|
|
|
*cdest++ = gamma->gamma_table[*csrc++];
|
2004-02-24 21:23:40 +00:00
|
|
|
else {
|
2004-03-15 19:32:27 +00:00
|
|
|
cdest++;
|
|
|
|
csrc++;
|
2004-02-24 21:23:40 +00:00
|
|
|
}
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|