Commit ad06345b authored by Wim Taymans's avatar Wim Taymans

ported the shagadelic plugin, shake it baby!

Original commit message from CVS:
ported the shagadelic plugin, shake it baby!
parent 15b1a6ed
......@@ -2,7 +2,7 @@ plugindir = $(libdir)/gst
plugin_LTLIBRARIES = libgsteffectv.la
libgsteffectv_la_SOURCES = gsteffectv.c gstedge.c gstaging.c gstdice.c gstwarp.c
libgsteffectv_la_SOURCES = gsteffectv.c gstedge.c gstaging.c gstdice.c gstwarp.c gstshagadelic.c
libgsteffectv_la_CFLAGS = $(GST_CFLAGS)
libgsteffectv_la_LIBADD =
libgsteffectv_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
......
......@@ -26,10 +26,11 @@ struct _elements_entry {
};
static struct _elements_entry _elements[] = {
{ "edgeTV", gst_edgetv_get_type, &gst_edgetv_details, NULL },
{ "agingTV", gst_agingtv_get_type, &gst_agingtv_details, NULL },
{ "diceTV", gst_dicetv_get_type, &gst_dicetv_details, NULL },
{ "warpTV", gst_warptv_get_type, &gst_warptv_details, NULL },
{ "edgeTV", gst_edgetv_get_type, &gst_edgetv_details, NULL },
{ "agingTV", gst_agingtv_get_type, &gst_agingtv_details, NULL },
{ "diceTV", gst_dicetv_get_type, &gst_dicetv_details, NULL },
{ "warpTV", gst_warptv_get_type, &gst_warptv_details, NULL },
{ "shagadelicTV", gst_shagadelictv_get_type, &gst_shagadelictv_details, NULL },
{ NULL, 0 },
};
......
......@@ -27,5 +27,8 @@ extern GstElementDetails gst_dicetv_details;
GType gst_warptv_get_type (void);
extern GstElementDetails gst_warptv_details;
GType gst_shagadelictv_get_type (void);
extern GstElementDetails gst_shagadelictv_details;
extern GstPadTemplate *gst_effectv_sink_factory ();
extern GstPadTemplate *gst_effectv_src_factory ();
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* EffecTV:
* Copyright (C) 2001 FUKUCHI Kentarou
*
* EffecTV is free software. We release this product under the terms of the
* GNU General Public License version 2. The license is included in the file
* COPYING.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*/
/*
* Inspired by Adrian Likin's script for the GIMP.
*/
#include <math.h>
#include <string.h>
#include <gst/gst.h>
#include "gsteffectv.h"
#define GST_TYPE_SHAGADELICTV \
(gst_shagadelictv_get_type())
#define GST_SHAGADELICTV(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SHAGADELICTV,GstShagadelicTV))
#define GST_SHAGADELICTV_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstShagadelicTV))
#define GST_IS_SHAGADELICTV(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SHAGADELICTV))
#define GST_IS_SHAGADELICTV_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SHAGADELICTV))
typedef struct _GstShagadelicTV GstShagadelicTV;
typedef struct _GstShagadelicTVClass GstShagadelicTVClass;
struct _GstShagadelicTV
{
GstElement element;
GstPad *sinkpad, *srcpad;
gint width, height;
gint stat;
gchar *ripple;
gchar *spiral;
guchar phase;
gint rx, ry;
gint bx, by;
gint rvx, rvy;
gint bvx, bvy;
};
struct _GstShagadelicTVClass
{
GstElementClass parent_class;
};
GstElementDetails gst_shagadelictv_details = {
"ShagadelicTV",
"Filter/Effect",
"Oh behave, ShagedelicTV makes images shagadelic!",
VERSION,
"Wim Taymans <wim.taymans@chello.be>",
"(C) 2001 FUKUCHI Kentarou",
};
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
};
static void gst_shagadelictv_class_init (GstShagadelicTVClass * klass);
static void gst_shagadelictv_init (GstShagadelicTV * filter);
static void gst_shagadelic_initialize (GstShagadelicTV *filter);
static void gst_shagadelictv_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_shagadelictv_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_shagadelictv_chain (GstPad * pad, GstBuffer * buf);
static GstElementClass *parent_class = NULL;
/*static guint gst_shagadelictv_signals[LAST_SIGNAL] = { 0 }; */
GType gst_shagadelictv_get_type (void)
{
static GType shagadelictv_type = 0;
if (!shagadelictv_type) {
static const GTypeInfo shagadelictv_info = {
sizeof (GstShagadelicTVClass), NULL,
NULL,
(GClassInitFunc) gst_shagadelictv_class_init,
NULL,
NULL,
sizeof (GstShagadelicTV),
0,
(GInstanceInitFunc) gst_shagadelictv_init,
};
shagadelictv_type = g_type_register_static (GST_TYPE_ELEMENT, "GstShagadelicTV", &shagadelictv_info, 0);
}
return shagadelictv_type;
}
static void
gst_shagadelictv_class_init (GstShagadelicTVClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_shagadelictv_set_property;
gobject_class->get_property = gst_shagadelictv_get_property;
}
static GstPadConnectReturn
gst_shagadelictv_sinkconnect (GstPad * pad, GstCaps * caps)
{
GstShagadelicTV *filter;
gint area;
filter = GST_SHAGADELICTV (gst_pad_get_parent (pad));
if (!GST_CAPS_IS_FIXED (caps))
return GST_PAD_CONNECT_DELAYED;
gst_caps_get_int (caps, "width", &filter->width);
gst_caps_get_int (caps, "height", &filter->height);
area = filter->width * filter->height;
g_free (filter->ripple);
g_free (filter->spiral);
filter->ripple = (gchar *) g_malloc (area * 4);
filter->spiral = (gchar *) g_malloc (area);
gst_shagadelic_initialize (filter);
if (gst_pad_try_set_caps (filter->srcpad, caps)) {
return GST_PAD_CONNECT_OK;
}
return GST_PAD_CONNECT_REFUSED;
}
static void
gst_shagadelictv_init (GstShagadelicTV * filter)
{
filter->sinkpad = gst_pad_new_from_template (gst_effectv_sink_factory (), "sink");
gst_pad_set_chain_function (filter->sinkpad, gst_shagadelictv_chain);
gst_pad_set_connect_function (filter->sinkpad, gst_shagadelictv_sinkconnect);
gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
filter->srcpad = gst_pad_new_from_template (gst_effectv_src_factory (), "src");
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
filter->ripple = NULL;
filter->spiral = NULL;
}
static unsigned int
fastrand (void)
{
static unsigned int fastrand_val;
return (fastrand_val = fastrand_val * 1103515245 + 12345);
}
static void
gst_shagadelic_initialize (GstShagadelicTV *filter)
{
int i, x, y;
#ifdef PS2
float xx, yy;
#else
double xx, yy;
#endif
i = 0;
for(y = 0; y < filter->height * 2; y++) {
yy = y - filter->height;
yy *= yy;
for (x = 0; x < filter->width * 2; x++) {
xx = x - filter->width;
#ifdef PS2
filter->ripple[i++] = ((unsigned int)(sqrtf(xx*xx+yy)*8))&255;
#else
filter->ripple[i++] = ((unsigned int)(sqrt(xx*xx+yy)*8))&255;
#endif
}
}
i = 0;
for (y = 0; y < filter->height; y++) {
yy = y - filter->height/2;
for (x = 0; x < filter->width; x++) {
xx = x - filter->width/2;
#ifdef PS2
filter->spiral[i++] = ((unsigned int)
((atan2f(xx, yy)/((float)M_PI)*256*9) + (sqrtf(xx*xx+yy*yy)*5)))&255;
#else
filter->spiral[i++] = ((unsigned int)
((atan2(xx, yy)/M_PI*256*9) + (sqrt(xx*xx+yy*yy)*5)))&255;
#endif
/* Here is another Swinger!
* ((atan2(xx, yy)/M_PI*256) + (sqrt(xx*xx+yy*yy)*10))&255;
*/
}
}
filter->rx = fastrand () % filter->width;
filter->ry = fastrand () % filter->height;
filter->bx = fastrand () % filter->width;
filter->by = fastrand () % filter->height;
filter->rvx = -2;
filter->rvy = -2;
filter->bvx = 2;
filter->bvy = 2;
filter->phase = 0;
}
int shagadelicDraw()
{
return 0;
}
static void
gst_shagadelictv_chain (GstPad * pad, GstBuffer * buf)
{
GstShagadelicTV *filter;
guint32 *src, *dest;
GstBuffer *outbuf;
gint x, y;
guint32 v;
guchar r, g, b;
gint width, height;
filter = GST_SHAGADELICTV (gst_pad_get_parent (pad));
src = (guint32 *) GST_BUFFER_DATA (buf);
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = (filter->width * filter->height * 4);
dest = (guint32 *) GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
width = filter->width;
height = filter->height;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
v = *src++ | 0x1010100;
v = (v - 0x707060) & 0x1010100;
v -= v >> 8;
/* Try another Babe!
* v = *src++;
* *dest++ = v & ((r<<16)|(g<<8)|b);
*/
r = (gchar) (filter->ripple[(filter->ry + y) * width * 2 + filter->rx + x] + filter->phase * 2) >> 7;
g = (gchar) (filter->spiral[y * width + x] + filter->phase * 3) >> 7;
b = (gchar) (filter->ripple[(filter->by + y) * width * 2 + filter->bx + x] - filter->phase) >> 7;
*dest++ = v & ((r << 16) | (g << 8) | b);
}
}
filter->phase -= 8;
if ((filter->rx + filter->rvx) < 0 || (filter->rx + filter->rvx) >= width) filter->rvx =- filter->rvx;
if ((filter->ry + filter->rvy) < 0 || (filter->ry + filter->rvy) >= height) filter->rvy =- filter->rvy;
if ((filter->bx + filter->bvx) < 0 || (filter->bx + filter->bvx) >= width) filter->bvx =- filter->bvx;
if ((filter->by + filter->bvy) < 0 || (filter->by + filter->bvy) >= height) filter->bvy =- filter->bvy;
filter->rx += filter->rvx;
filter->ry += filter->rvy;
filter->bx += filter->bvx;
filter->by += filter->bvy;
gst_buffer_unref (buf);
gst_pad_push (filter->srcpad, outbuf);
}
static void
gst_shagadelictv_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstShagadelicTV *filter;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SHAGADELICTV (object));
filter = GST_SHAGADELICTV (object);
switch (prop_id) {
default:
break;
}
}
static void
gst_shagadelictv_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
{
GstShagadelicTV *filter;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_SHAGADELICTV (object));
filter = GST_SHAGADELICTV (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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