app: histogram sink skeleton gift for mitch
This commit is contained in:
Øyvind Kolås
committed by
Michael Natterer
Michael Natterer
parent
9a4d84e683
commit
ad8b16e6ad
144
app/gegl/gimp-operation-histogram-sink.c
Normal file
144
app/gegl/gimp-operation-histogram-sink.c
Normal file
@ -0,0 +1,144 @@
|
||||
/*
|
||||
* Copyright 2012 Øyvind Kolås
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <glib-object.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "gegl.h"
|
||||
#include "gegl-plugin.h"
|
||||
#include "gimp-operation-histogram-sink.h"
|
||||
#include "gegl-utils.h"
|
||||
#include "buffer/gegl-buffer.h"
|
||||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_OUTPUT,
|
||||
PROP_INPUT,
|
||||
PROP_AUX
|
||||
};
|
||||
|
||||
static void get_property (GObject *gobject,
|
||||
guint prop_id,
|
||||
GValue *value,
|
||||
GParamSpec *pspec);
|
||||
static void set_property (GObject *gobject,
|
||||
guint prop_id,
|
||||
const GValue *value,
|
||||
GParamSpec *pspec);
|
||||
static gboolean gimp_operation_histogram_sink_process (GeglOperation *operation,
|
||||
GeglOperationContext *context,
|
||||
const gchar *output_prop,
|
||||
const GeglRectangle *result,
|
||||
gint level);
|
||||
static void attach (GeglOperation *operation);
|
||||
|
||||
static GeglRectangle get_required_for_output (GeglOperation *self,
|
||||
const gchar *input_pad,
|
||||
const GeglRectangle *roi);
|
||||
|
||||
G_DEFINE_TYPE (GimpOperationHistogramSink, gimp_operation_histogram_sink,
|
||||
GEGL_TYPE_OPERATION_SINK)
|
||||
|
||||
|
||||
static void
|
||||
gimp_operation_histogram_sink_class_init (GimpOperationHistogramSinkClass * klass)
|
||||
{
|
||||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||||
GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
|
||||
|
||||
object_class->set_property = set_property;
|
||||
object_class->get_property = get_property;
|
||||
|
||||
operation_class->process = gimp_operation_histogram_sink_process;
|
||||
operation_class->get_required_for_output = get_required_for_output;
|
||||
operation_class->attach = attach;
|
||||
|
||||
g_object_class_install_property (object_class, PROP_AUX,
|
||||
g_param_spec_object ("aux",
|
||||
"Input",
|
||||
"Auxiliary image buffer input pad.",
|
||||
GEGL_TYPE_BUFFER,
|
||||
G_PARAM_READWRITE |
|
||||
GEGL_PARAM_PAD_INPUT));
|
||||
}
|
||||
|
||||
static void
|
||||
gimp_operation_histogram_sink_init (GimpOperationHistogramSink *self)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
attach (GeglOperation *self)
|
||||
{
|
||||
GeglOperation *operation = GEGL_OPERATION (self);
|
||||
GObjectClass *object_class = G_OBJECT_GET_CLASS (self);
|
||||
|
||||
gegl_operation_create_pad (operation,
|
||||
g_object_class_find_property (object_class,
|
||||
"aux"));
|
||||
}
|
||||
|
||||
static void
|
||||
get_property (GObject *object,
|
||||
guint prop_id,
|
||||
GValue *value,
|
||||
GParamSpec *pspec)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
set_property (GObject *object,
|
||||
guint prop_id,
|
||||
const GValue *value,
|
||||
GParamSpec *pspec)
|
||||
{
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gimp_operation_histogram_sink_process (GeglOperation *operation,
|
||||
GeglOperationContext *context,
|
||||
const gchar *output_prop,
|
||||
const GeglRectangle *result,
|
||||
gint level)
|
||||
{
|
||||
GeglBuffer *input;
|
||||
GeglBuffer *aux;
|
||||
gboolean success = FALSE;
|
||||
|
||||
if (strcmp (output_prop, "output"))
|
||||
{
|
||||
g_warning ("requested processing of %s pad on a composer", output_prop);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
input = gegl_operation_context_get_source (context, "input");
|
||||
aux = gegl_operation_context_get_source (context, "aux");
|
||||
|
||||
/* A composer with a NULL aux, can still be valid, the
|
||||
* subclass has to handle it.
|
||||
*/
|
||||
if (input != NULL ||
|
||||
aux != NULL)
|
||||
{
|
||||
/* shake and stir bits */
|
||||
}
|
||||
else
|
||||
{
|
||||
g_warning ("received NULL input and aux");
|
||||
}
|
||||
|
||||
return success;
|
||||
}
|
||||
|
||||
static GeglRectangle
|
||||
get_required_for_output (GeglOperation *self,
|
||||
const gchar *input_pad,
|
||||
const GeglRectangle *roi)
|
||||
{
|
||||
/* dunno what to do here, make a wild guess */
|
||||
return *roi;
|
||||
}
|
||||
43
app/gegl/gimp-operation-histogram-sink.h
Normal file
43
app/gegl/gimp-operation-histogram-sink.h
Normal file
@ -0,0 +1,43 @@
|
||||
/*
|
||||
* Copyright 2012 Øyvind Kolås
|
||||
*/
|
||||
|
||||
#ifndef __GIMP_OPERATION_HISTOGRAM_SINK_H__
|
||||
#define __GIMP_OPERATION_HISTOGRAM_SINK_H__
|
||||
|
||||
#include "gegl-operation-sink.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GIMP_TYPE_HISTOGRAM_SINK (gimp_operation_histogram_sink_get_type ())
|
||||
#define GIMP_OPERATION_HISTOGRAM_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_HISTOGRAM_SINK, GimpOperationHistogramSink))
|
||||
#define GIMP_OPERATION_HISTOGRAM_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_HISTOGRAM_SINK, GimpOperationHistogramSinkClass))
|
||||
#define GEGL_IS_OPERATION_HISTOGRAM_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_HISTOGRAM_SINK))
|
||||
#define GEGL_IS_OPERATION_HISTOGRAM_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_HISTOGRAM_SINK))
|
||||
#define GIMP_OPERATION_HISTOGRAM_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_HISTOGRAM_SINK, GimpOperationHistogramSinkClass))
|
||||
|
||||
typedef struct _GimpOperationHistogramSink GimpOperationHistogramSink;
|
||||
struct _GimpOperationHistogramSink
|
||||
{
|
||||
GeglOperation parent_instance;
|
||||
};
|
||||
|
||||
typedef struct _GimpOperationHistogramSinkClass GimpOperationHistogramSinkClass;
|
||||
struct _GimpOperationHistogramSinkClass
|
||||
{
|
||||
GeglOperationSinkClass parent_class;
|
||||
|
||||
gboolean (* process) (GeglOperation *self,
|
||||
GeglBuffer *input,
|
||||
GeglBuffer *aux,
|
||||
GeglBuffer *output,
|
||||
const GeglRectangle *result,
|
||||
gint level);
|
||||
gpointer pad[4];
|
||||
};
|
||||
|
||||
GType gimp_operation_histogram_sink_get_type (void) G_GNUC_CONST;
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user