/* This file is the public operation GEGL API, this API will change to much
* larger degrees than the api provided by gegl.h
*
* GEGL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* GEGL 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* 2000-2008 Øyvind Kolås.
*/
#ifndef __GEGL_PLUGIN_H__
#define __GEGL_PLUGIN_H__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <glib-object.h>
#include <gegl.h>
G_BEGIN_DECLS
/* Extra types needed when coding operations */
typedef struct _GeglOperation GeglOperation;
typedef struct _GeglOperationContext GeglOperationContext;
typedef struct _GeglPad GeglPad;
typedef struct _GeglConnection GeglConnection;
#include <gegl-matrix.h>
#include <gegl-utils.h>
#include <gegl-buffer.h>
#include <gegl-paramspecs.h>
#include <gmodule.h>
typedef struct _GeglModule GeglModule;
typedef struct _GeglModuleInfo GeglModuleInfo;
typedef struct _GeglModuleDB GeglModuleDB;
/***
* Writing GEGL operations
*
*/
/*#include <geglmodule.h>*/
/* increment the ABI version each time one of the following changes:
*
* - the libgeglmodule implementation (if the change affects modules).
* - GeglOperation or one of it's base classes changes. (XXX:-
* should be extended so a range of abi versions are accepted.
*/
#define GEGL_MODULE_ABI_VERSION 0x000A
struct _GeglModuleInfo
{
guint32 abi_version;
};
GType gegl_module_register_type (GTypeModule *module,
GType parent_type,
const gchar *type_name,
const GTypeInfo *type_info,
GTypeFlags flags);
gint gegl_operation_context_get_level (GeglOperationContext *self);
GeglBuffer *gegl_operation_context_get_source (GeglOperationContext *self,
const gchar *padname);
GeglBuffer *gegl_operation_context_get_target (GeglOperationContext *self,
const gchar *padname);
void gegl_operation_context_set_object (GeglOperationContext *context,
const gchar *padname,
GObject *data);
void gegl_operation_context_take_object(GeglOperationContext *context,
const gchar *padname,
GObject *data);
GObject *gegl_operation_context_get_object (GeglOperationContext *context,
const gchar *padname);
void gegl_extension_handler_register (const gchar *extension,
const gchar *handler);
void gegl_extension_handler_register_saver
(const gchar *extension,
const gchar *handler);
const gchar * gegl_extension_handler_get (const gchar *extension);
const gchar * gegl_extension_handler_get_saver (const gchar *extension);
/* code template utility, updates the jacobian matrix using
* a user defined mapping function for displacement, example
* with an identity transform (note that for the identity
* transform this is massive computational overhead that can
* be skipped by passing NULL to the sampler.
*
* #define gegl_unmap(x,y,dx,dy) { dx=x; dy=y; }
*
* gegl_sampler_compute_scale (scale, x, y);
* gegl_unmap(x,y,sample_x,sample_y);
* gegl_buffer_sample (buffer, sample_x, sample_y, scale, dest, format,
* GEGL_SAMPLER_LOHALO);
*
* #undef gegl_unmap // IMPORTANT undefine map macro
*/
#define gegl_sampler_compute_scale(matrix, x, y) \
{ \
float ax, ay, bx, by; \
gegl_unmap(x + 0.5, y, ax, ay); \
gegl_unmap(x - 0.5, y, bx, by); \
matrix.coeff[0][0] = ax - bx; \
matrix.coeff[1][0] = ay - by; \
gegl_unmap(x, y + 0.5, ax, ay); \
gegl_unmap(x, y - 0.5, bx, by); \
matrix.coeff[0][1] = ax - bx; \
matrix.coeff[1][1] = ay - by; \
}
typedef struct
{
GObject parent_instance;
void (* get) (GeglSampler *self,
gdouble x,
gdouble y,
GeglMatrix2 *scale,
void *output);
} SamplerMock;
#define gegl_sampler_get(sampler,x,y,scale,dest) \
((SamplerMock*)(sampler))->get((sampler),(x),(y),(scale),(dest))
#include <glib-object.h>
#include <babl/babl.h>
#include <operation/gegl-operation.h>
#include <operation/gegl-operation-filter.h>
#include <operation/gegl-operation-area-filter.h>
#include <operation/gegl-operation-point-filter.h>
#include <operation/gegl-operation-composer.h>
#include <operation/gegl-operation-composer3.h>
#include <operation/gegl-operation-point-composer.h>
#include <operation/gegl-operation-point-composer3.h>
#include <operation/gegl-operation-point-render.h>
#include <operation/gegl-operation-temporal.h>
#include <operation/gegl-operation-source.h>
#include <operation/gegl-operation-sink.h>
#include <operation/gegl-operation-meta.h>
#include <gegl-lookup.h>
G_END_DECLS
#endif /* __GEGL_PLUGIN_H__ */