mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-02-17 03:35:21 +00:00
Some cleanups ported the ber cool warp plugin.
Original commit message from CVS: Some cleanups ported the ber cool warp plugin.
This commit is contained in:
Wim Taymans
parent
20f880e4bc
commit
14c7c3777b
6 changed files with 362 additions and 11 deletions
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@ -2,7 +2,7 @@ plugindir = $(libdir)/gst
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plugin_LTLIBRARIES = libgsteffectv.la
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libgsteffectv_la_SOURCES = gsteffectv.c gstedge.c gstaging.c gstdice.c
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libgsteffectv_la_SOURCES = gsteffectv.c gstedge.c gstaging.c gstdice.c gstwarp.c
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libgsteffectv_la_CFLAGS = $(GST_CFLAGS)
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libgsteffectv_la_LIBADD =
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libgsteffectv_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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@ -101,7 +101,7 @@ static void gst_agingtv_get_property (GObject * object, guint prop_id,
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static void gst_agingtv_chain (GstPad * pad, GstBuffer * buf);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */
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/*static guint gst_agingtv_signals[LAST_SIGNAL] = { 0 }; */
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GType gst_agingtv_get_type (void)
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{
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@ -70,19 +70,18 @@ enum
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ARG_0,
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};
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static void gst_edgetv_class_init (GstEdgeTVClass * klass);
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static void gst_edgetv_init (GstEdgeTV * filter);
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static void gst_edgetv_class_init (GstEdgeTVClass * klass);
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static void gst_edgetv_init (GstEdgeTV * filter);
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static void gst_edgetv_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_edgetv_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_edgetv_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_edgetv_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_edgetv_chain (GstPad * pad, GstBuffer * buf);
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static void gst_edgetv_chain (GstPad * pad, GstBuffer * buf);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */
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/*static guint gst_edgetv_signals[LAST_SIGNAL] = { 0 }; */
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GType gst_edgetv_get_type (void)
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{
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@ -29,6 +29,7 @@ static struct _elements_entry _elements[] = {
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{ "edgeTV", gst_edgetv_get_type, &gst_edgetv_details, NULL },
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{ "agingTV", gst_agingtv_get_type, &gst_agingtv_details, NULL },
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{ "diceTV", gst_dicetv_get_type, &gst_dicetv_details, NULL },
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{ "warpTV", gst_warptv_get_type, &gst_warptv_details, NULL },
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{ NULL, 0 },
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};
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@ -24,5 +24,8 @@ extern GstElementDetails gst_agingtv_details;
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GType gst_dicetv_get_type (void);
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extern GstElementDetails gst_dicetv_details;
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GType gst_warptv_get_type (void);
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extern GstElementDetails gst_warptv_details;
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extern GstPadTemplate *gst_effectv_sink_factory ();
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extern GstPadTemplate *gst_effectv_src_factory ();
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348
gst/effectv/gstwarp.c
Normal file
348
gst/effectv/gstwarp.c
Normal file
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@ -0,0 +1,348 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* EffecTV is free software. We release this product under the terms of the
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* GNU General Public License version 2. The license is included in the file
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* COPYING.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*/
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/*
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* EffecTV - Realtime Digital Video Effector
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* Copyright (C) 2001 FUKUCHI Kentarou
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*
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* From main.c of warp-1.1:
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*
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* Simple DirectMedia Layer demo
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* Realtime picture 'gooing'
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* Released under GPL
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* by sam lantinga slouken@devolution.com
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*/
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#include <string.h>
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#include <math.h>
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#include <gst/gst.h>
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#include "gsteffectv.h"
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#define GST_TYPE_WARPTV \
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(gst_warptv_get_type())
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#define GST_WARPTV(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WARPTV,GstWarpTV))
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#define GST_WARPTV_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstWarpTV))
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#define GST_IS_WARPTV(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WARPTV))
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#define GST_IS_WARPTV_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WARPTV))
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typedef struct _GstWarpTV GstWarpTV;
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typedef struct _GstWarpTVClass GstWarpTVClass;
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struct _GstWarpTV
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{
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GstElement element;
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GstPad *sinkpad, *srcpad;
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gint width, height;
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gint *offstable;
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gint32 *disttable;
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gint32 ctable[1024];
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gint32 sintable[1024+256];
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gint tval;
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};
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struct _GstWarpTVClass
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{
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GstElementClass parent_class;
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};
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GstElementDetails gst_warptv_details = {
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"WarpTV",
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"Filter/Effect",
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"WarpTV does realtime goo'ing of the video input",
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VERSION,
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"Sam Lantinga <slouken@devolution.com>",
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"Wim Taymans <wim.taymans@chello.be>, "
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"(C) 2001 FUKUCHI Kentarou",
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};
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/* Filter signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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};
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static void gst_warptv_class_init (GstWarpTVClass * klass);
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static void gst_warptv_init (GstWarpTV * filter);
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static void gst_warptv_initialize (GstWarpTV *filter);
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static void gst_warptv_dispose (GObject *object);
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static void gst_warptv_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_warptv_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_warptv_chain (GstPad * pad, GstBuffer * buf);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_warptv_signals[LAST_SIGNAL] = { 0 }; */
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GType gst_warptv_get_type (void)
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{
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static GType warptv_type = 0;
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if (!warptv_type) {
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static const GTypeInfo warptv_info = {
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sizeof (GstWarpTVClass), NULL,
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NULL,
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(GClassInitFunc) gst_warptv_class_init,
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NULL,
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NULL,
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sizeof (GstWarpTV),
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0,
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(GInstanceInitFunc) gst_warptv_init,
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};
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warptv_type = g_type_register_static (GST_TYPE_ELEMENT, "GstWarpTV", &warptv_info, 0);
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}
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return warptv_type;
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}
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static void
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gst_warptv_class_init (GstWarpTVClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gobject_class->set_property = gst_warptv_set_property;
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gobject_class->get_property = gst_warptv_get_property;
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gobject_class->dispose = gst_warptv_dispose;
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}
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static GstPadConnectReturn
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gst_warptv_sinkconnect (GstPad * pad, GstCaps * caps)
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{
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GstWarpTV *filter;
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filter = GST_WARPTV (gst_pad_get_parent (pad));
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if (!GST_CAPS_IS_FIXED (caps))
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return GST_PAD_CONNECT_DELAYED;
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gst_caps_get_int (caps, "width", &filter->width);
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gst_caps_get_int (caps, "height", &filter->height);
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gst_warptv_initialize (filter);
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if (gst_pad_try_set_caps (filter->srcpad, caps)) {
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return GST_PAD_CONNECT_OK;
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}
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return GST_PAD_CONNECT_REFUSED;
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}
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static void
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gst_warptv_init (GstWarpTV * filter)
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{
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filter->sinkpad = gst_pad_new_from_template (gst_effectv_sink_factory (), "sink");
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gst_pad_set_chain_function (filter->sinkpad, gst_warptv_chain);
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gst_pad_set_connect_function (filter->sinkpad, gst_warptv_sinkconnect);
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gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
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filter->srcpad = gst_pad_new_from_template (gst_effectv_src_factory (), "src");
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gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
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filter->tval = 0;
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}
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static void
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initSinTable (GstWarpTV *filter)
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{
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gint32 *tptr, *tsinptr;
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double i;
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tsinptr = tptr = filter->sintable;
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for (i = 0; i < 1024; i++)
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*tptr++ = (int) (sin (i * M_PI / 512) * 32767);
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for (i = 0; i < 256; i++)
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*tptr++ = *tsinptr++;
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}
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static void
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initOffsTable (GstWarpTV *filter)
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{
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int y;
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for (y = 0; y < filter->height; y++) {
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filter->offstable[y] = y * filter->width;
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}
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}
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static void
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initDistTable (GstWarpTV *filter)
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{
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gint32 halfw, halfh, *distptr;
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#ifdef PS2
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float x,y,m;
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#else
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double x,y,m;
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#endif
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halfw = filter->width>> 1;
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halfh = filter->height >> 1;
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distptr = filter->disttable;
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m = sqrt ((double)(halfw * halfw + halfh * halfh));
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for (y = -halfh; y < halfh; y++)
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for (x= -halfw; x < halfw; x++)
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#ifdef PS2
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*distptr++ = ((int) ((sqrtf (x * x + y * y) * 511.9999) / m)) << 1;
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#else
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*distptr++ = ((int) ((sqrt (x * x + y * y) * 511.9999) / m)) << 1;
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#endif
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}
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static void
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gst_warptv_initialize (GstWarpTV *filter)
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{
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filter->offstable = (guint32 *) g_malloc (filter->height * sizeof (guint32));
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filter->disttable = g_malloc (filter->width * filter->height * sizeof (guint32));
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initSinTable (filter);
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initOffsTable (filter);
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initDistTable (filter);
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}
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static void
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gst_warptv_dispose (GObject *object)
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{
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GstWarpTV *filter = GST_WARPTV (object);
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g_free (filter->disttable);
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g_free (filter->offstable);
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}
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static void
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gst_warptv_chain (GstPad * pad, GstBuffer * buf)
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{
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GstWarpTV *filter;
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guint32 *src, *dest;
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gint xw,yw,cw;
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GstBuffer *outbuf;
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gint32 c,i, x,y, dx,dy, maxx, maxy;
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gint32 width, height, skip, *ctptr, *distptr;
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gint32 *sintable, *ctable;
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filter = GST_WARPTV (gst_pad_get_parent (pad));
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src = (guint32 *) GST_BUFFER_DATA (buf);
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outbuf = gst_buffer_new ();
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GST_BUFFER_SIZE (outbuf) = (filter->width * filter->height * sizeof(guint32));
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dest = (guint32 *) GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
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GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
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xw = (gint) (sin ((filter->tval + 100) * M_PI / 128) * 30);
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yw = (gint) (sin ((filter->tval) * M_PI / 256) * -35);
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cw = (gint) (sin ((filter->tval - 70) * M_PI / 64) * 50);
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xw += (gint) (sin ((filter->tval - 10) * M_PI / 512) * 40);
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yw += (gint) (sin ((filter->tval + 30) * M_PI / 512) * 40);
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ctptr = filter->ctable;
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distptr = filter->disttable;
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width = filter->width;
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height = filter->height;
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sintable = filter->sintable;
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ctable = filter->ctable;
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skip = 0 ; /* video_width*sizeof(RGB32)/4 - video_width;; */
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c = 0;
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for (x = 0; x < 512; x++) {
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i = (c >> 3) & 0x3FE;
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*ctptr++ = ((sintable[i] * yw) >> 15);
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*ctptr++ = ((sintable[i + 256] * xw) >> 15);
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c += cw;
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}
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maxx = width - 2; maxy = height - 2;
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for (y = 0; y < height - 1; y++) {
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for (x = 0; x < width; x++) {
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i = *distptr++;
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dx = ctable [i + 1] + x;
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dy = ctable [i] + y;
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if (dx < 0) dx = 0;
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else if (dx > maxx) dx = maxx;
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if (dy < 0) dy = 0;
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else if (dy > maxy) dy = maxy;
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*dest++ = src[filter->offstable[dy] + dx];
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}
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dest += skip;
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}
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filter->tval = (filter->tval + 1) & 511;
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gst_buffer_unref (buf);
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gst_pad_push (filter->srcpad, outbuf);
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}
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static void
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gst_warptv_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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GstWarpTV *filter;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_WARPTV (object));
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filter = GST_WARPTV (object);
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switch (prop_id) {
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default:
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break;
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}
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}
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static void
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gst_warptv_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
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{
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GstWarpTV *filter;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_WARPTV (object));
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filter = GST_WARPTV (object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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