--- /dev/null
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * dice.c: a 'dicing' effect
+ * copyright (c) 2001 Sam Mertens. This code is subject to the provisions of
+ * the GNU Public License.
+ *
+ * I suppose this looks similar to PuzzleTV, but it's not. The screen is
+ * divided into small squares, each of which is rotated either 0, 90, 180 or
+ * 270 degrees. The amount of rotation for each square is chosen at random.
+ */
+
+#include <string.h>
+#include <gst/gst.h>
+#include "gsteffectv.h"
+
+#define GST_TYPE_DICETV \
+ (gst_dicetv_get_type())
+#define GST_DICETV(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DICETV,GstDiceTV))
+#define GST_DICETV_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstDiceTV))
+#define GST_IS_DICETV(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DICETV))
+#define GST_IS_DICETV_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DICETV))
+
+typedef struct _GstDiceTV GstDiceTV;
+typedef struct _GstDiceTVClass GstDiceTVClass;
+
+#define DEFAULT_CUBE_BITS 4
+#define MAX_CUBE_BITS 5
+#define MIN_CUBE_BITS 0
+
+typedef enum _dice_dir
+{
+ DICE_UP = 0,
+ DICE_RIGHT = 1,
+ DICE_DOWN = 2,
+ DICE_LEFT = 3
+} DiceDir;
+
+struct _GstDiceTV
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+
+ gint width, height;
+ gchar* dicemap;
+
+ gint g_cube_bits;
+ gint g_cube_size;
+ gint g_map_height;
+ gint g_map_width;
+};
+
+struct _GstDiceTVClass
+{
+ GstElementClass parent_class;
+
+ void (*reset) (GstElement *elem);
+};
+
+GstElementDetails gst_dicetv_details = {
+ "DiceTV",
+ "Filter/Effect",
+ "'Dices' the screen up into many small squares",
+ VERSION,
+ "Wim Taymans <wim.taymans@chello.be>",
+ "(c) 2001 Sam Mertens",
+};
+
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ RESET_SIGNAL,
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0,
+ ARG_CUBE_BITS,
+};
+
+static void gst_dicetv_class_init (GstDiceTVClass * klass);
+static void gst_dicetv_init (GstDiceTV * filter);
+
+static void gst_dicetv_reset_handler (GstElement *elem);
+static void gst_dicetv_create_map (GstDiceTV *filter);
+
+static void gst_dicetv_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_dicetv_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static void gst_dicetv_chain (GstPad * pad, GstBuffer * buf);
+
+static GstElementClass *parent_class = NULL;
+static guint gst_dicetv_signals[LAST_SIGNAL] = { 0 };
+
+GType gst_dicetv_get_type (void)
+{
+ static GType dicetv_type = 0;
+
+ if (!dicetv_type) {
+ static const GTypeInfo dicetv_info = {
+ sizeof (GstDiceTVClass), NULL,
+ NULL,
+ (GClassInitFunc) gst_dicetv_class_init,
+ NULL,
+ NULL,
+ sizeof (GstDiceTV),
+ 0,
+ (GInstanceInitFunc) gst_dicetv_init,
+ };
+
+ dicetv_type = g_type_register_static (GST_TYPE_ELEMENT, "GstDiceTV", &dicetv_info, 0);
+ }
+ return dicetv_type;
+}
+
+static void
+gst_dicetv_class_init (GstDiceTVClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gst_dicetv_signals[RESET_SIGNAL] =
+ g_signal_new ("reset",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstDiceTVClass, reset),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ klass->reset = gst_dicetv_reset_handler;
+
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CUBE_BITS,
+ g_param_spec_int ("square_bits","Square Bits","The size of the Squares",
+ MIN_CUBE_BITS, MAX_CUBE_BITS, DEFAULT_CUBE_BITS, G_PARAM_READWRITE));
+
+ gobject_class->set_property = gst_dicetv_set_property;
+ gobject_class->get_property = gst_dicetv_get_property;
+}
+
+static GstPadConnectReturn
+gst_dicetv_sinkconnect (GstPad * pad, GstCaps * caps)
+{
+ GstDiceTV *filter;
+
+ filter = GST_DICETV (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);
+
+ g_free (filter->dicemap);
+ filter->dicemap = (gchar *) g_malloc (filter->height * filter->width * sizeof(char));
+ gst_dicetv_create_map (filter);
+
+ if (gst_pad_try_set_caps (filter->srcpad, caps)) {
+ return GST_PAD_CONNECT_OK;
+ }
+
+ return GST_PAD_CONNECT_REFUSED;
+}
+
+static void
+gst_dicetv_init (GstDiceTV * filter)
+{
+ filter->sinkpad = gst_pad_new_from_template (gst_effectv_sink_factory (), "sink");
+ gst_pad_set_chain_function (filter->sinkpad, gst_dicetv_chain);
+ gst_pad_set_connect_function (filter->sinkpad, gst_dicetv_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->dicemap = NULL;
+ filter->g_cube_bits = DEFAULT_CUBE_BITS;
+ filter->g_cube_size = 0;
+ filter->g_map_height = 0;
+ filter->g_map_width = 0;
+}
+
+static void
+gst_dicetv_reset_handler (GstElement *elem)
+{
+ GstDiceTV *filter = GST_DICETV (elem);
+
+ gst_dicetv_create_map (filter);
+}
+
+
+static unsigned int
+fastrand (void)
+{
+ static unsigned int fastrand_val;
+
+ return (fastrand_val = fastrand_val * 1103515245 + 12345);
+}
+
+static void
+gst_dicetv_draw (GstDiceTV *filter, guint32 *src, guint32 *dest)
+{
+ gint i;
+ gint map_x, map_y, map_i;
+ gint base;
+ gint dx, dy, di;
+ gint video_width = filter->width;
+ gint g_cube_bits = filter->g_cube_bits;
+ gint g_cube_size = filter->g_cube_size;
+
+ map_i = 0;
+ for (map_y = 0; map_y < filter->g_map_height; map_y++) {
+ for (map_x = 0; map_x < filter->g_map_width; map_x++) {
+ base = (map_y << g_cube_bits) * video_width + (map_x << g_cube_bits);
+
+ switch (filter->dicemap[map_i]) {
+ case DICE_UP:
+ for (dy = 0; dy < g_cube_size; dy++) {
+ i = base + dy * video_width;
+ for (dx = 0; dx < g_cube_size; dx++) {
+ dest[i] = src[i];
+ i++;
+ }
+ }
+ break;
+ case DICE_LEFT:
+ for (dy = 0; dy < g_cube_size; dy++) {
+ i = base + dy * video_width;
+
+ for (dx = 0; dx < g_cube_size; dx++) {
+ di = base + (dx * video_width) + (g_cube_size - dy - 1);
+ dest[di] = src[i];
+ i++;
+ }
+ }
+ break;
+ case DICE_DOWN:
+ for (dy = 0; dy < g_cube_size; dy++) {
+ di = base + dy * video_width;
+ i = base + (g_cube_size - dy - 1) * video_width + g_cube_size;
+ for (dx = 0; dx < g_cube_size; dx++) {
+ i--;
+ dest[di] = src[i];
+ di++;
+ }
+ }
+ break;
+ case DICE_RIGHT:
+ for (dy = 0; dy < g_cube_size; dy++) {
+ i = base + (dy * video_width);
+ for (dx = 0; dx < g_cube_size; dx++) {
+ di = base + dy + (g_cube_size - dx - 1) * video_width;
+ dest[di] = src[i];
+ i++;
+ }
+ }
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+ map_i++;
+ }
+ }
+}
+
+static void
+gst_dicetv_create_map (GstDiceTV *filter)
+{
+ gint x, y, i;
+
+ filter->g_map_height = filter->height >> filter->g_cube_bits;
+ filter->g_map_width = filter->width >> filter->g_cube_bits;
+ filter->g_cube_size = 1 << filter->g_cube_bits;
+
+ i = 0;
+
+ for (y = 0; y < filter->g_map_height; y++) {
+ for(x = 0; x < filter->g_map_width; x++) {
+ // dicemap[i] = ((i + y) & 0x3); /* Up, Down, Left or Right */
+ filter->dicemap[i] = (fastrand() >> 24) & 0x03;
+ i++;
+ }
+ }
+}
+
+static void
+gst_dicetv_chain (GstPad * pad, GstBuffer * buf)
+{
+ GstDiceTV *filter;
+ guint32 *src, *dest;
+ GstBuffer *outbuf;
+
+ filter = GST_DICETV (gst_pad_get_parent (pad));
+
+ src = (guint32 *) GST_BUFFER_DATA (buf);
+
+ outbuf = gst_buffer_new ();
+ GST_BUFFER_SIZE (outbuf) = (filter->width * filter->height * sizeof(guint32));
+ dest = (guint32 *) GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
+ GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
+
+ gst_dicetv_draw (filter, src, dest);
+
+ gst_buffer_unref (buf);
+
+ gst_pad_push (filter->srcpad, outbuf);
+}
+
+static void
+gst_dicetv_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+ GstDiceTV *filter;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_DICETV (object));
+
+ filter = GST_DICETV (object);
+
+ switch (prop_id) {
+ case ARG_CUBE_BITS:
+ filter->g_cube_bits = g_value_get_int (value);
+ gst_dicetv_create_map (filter);
+ default:
+ break;
+ }
+}
+
+static void
+gst_dicetv_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
+{
+ GstDiceTV *filter;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail (GST_IS_DICETV (object));
+
+ filter = GST_DICETV (object);
+
+ switch (prop_id) {
+ case ARG_CUBE_BITS:
+ g_value_set_int (value, filter->g_cube_bits);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
#include <gst/gst.h>
#include "gsteffectv.h"
-#define GST_TYPE_EFFECTV \
+#define GST_TYPE_EDGETV \
(gst_edgetv_get_type())
-#define GST_EFFECTV(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_EFFECTV,GstEdgeTV))
-#define GST_EFFECTV_CLASS(klass) \
+#define GST_EDGETV(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_EDGETV,GstEdgeTV))
+#define GST_EDGETV_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstEdgeTV))
-#define GST_IS_EFFECTV(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_EFFECTV))
-#define GST_IS_EFFECTV_CLASS(obj) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_EFFECTV))
+#define GST_IS_EDGETV(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_EDGETV))
+#define GST_IS_EDGETV_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_EDGETV))
typedef struct _GstEdgeTV GstEdgeTV;
typedef struct _GstEdgeTVClass GstEdgeTVClass;
{
GstEdgeTV *filter;
- filter = GST_EFFECTV (gst_pad_get_parent (pad));
+ filter = GST_EDGETV (gst_pad_get_parent (pad));
if (!GST_CAPS_IS_FIXED (caps))
return GST_PAD_CONNECT_DELAYED;
guint32 v0, v1, v2, v3;
GstBuffer *outbuf;
- filter = GST_EFFECTV (gst_pad_get_parent (pad));
+ filter = GST_EDGETV (gst_pad_get_parent (pad));
src = (guint32 *) GST_BUFFER_DATA (buf);
GstEdgeTV *filter;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_EFFECTV (object));
+ g_return_if_fail (GST_IS_EDGETV (object));
- filter = GST_EFFECTV (object);
+ filter = GST_EDGETV (object);
switch (prop_id) {
default:
GstEdgeTV *filter;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_EFFECTV (object));
+ g_return_if_fail (GST_IS_EDGETV (object));
- filter = GST_EFFECTV (object);
+ filter = GST_EDGETV (object);
switch (prop_id) {
default:
projects / platform / upstream / gstreamer.git / commitdiff