/* This file is an image processing operation for GEGL
*
* 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/>.
*
* Copyright 2006 Øyvind Kolås <pippin@gimp.org>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
/* no properties */
#else
#define GEGL_CHANT_TYPE_POINT_FILTER
#define GEGL_CHANT_C_FILE "grey.c"
#include "gegl-chant.h"
static void prepare (GeglOperation *operation)
{
const Babl *format = babl_format ("YA float");
gegl_operation_set_format (operation, "input", format);
gegl_operation_set_format (operation, "output", format);
}
/* XXX: could be sped up by special casing op-filter behavior */
static gboolean
process (GeglOperation *op,
void *in_buf,
void *out_buf,
glong samples,
const GeglRectangle *roi,
gint level)
{
float *in = in_buf;
float *out = out_buf;
while (samples--)
{
*out++ = *in++;
*out++ = *in++;
}
return TRUE;
}
#include "opencl/gegl-cl.h"
static cl_int
cl_process (GeglOperation *op,
cl_mem in_tex,
cl_mem out_tex,
size_t global_worksize,
const GeglRectangle *roi,
gint level)
{
cl_int cl_err = 0;
cl_err = gegl_clEnqueueCopyBuffer(gegl_cl_get_command_queue(),
in_tex , out_tex , 0 , 0 ,
global_worksize * sizeof (cl_float2),
0, NULL, NULL);
if (CL_SUCCESS != cl_err) return cl_err;
return cl_err;
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointFilterClass *point_filter_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_filter_class = GEGL_OPERATION_POINT_FILTER_CLASS (klass);
point_filter_class->process = process;
point_filter_class->cl_process = cl_process;
operation_class->prepare = prepare;
operation_class->opencl_support = TRUE;
gegl_operation_class_set_keys (operation_class,
"name" , "gegl:grey",
"categories" , "color",
"description", _("Turns the image greyscale"),
NULL);
}
#endif