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file-gegl: a simple gegl based file loading plugin

This commit is contained in:
Simon Budig 2012-04-30 04:24:23 +02:00 committed by Michael Natterer
parent ab1bf6fcee
commit 28f70039ab
5 changed files with 277 additions and 0 deletions
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2
plug-ins/common/.gitignore vendored
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@ -106,6 +106,8 @@
/file-dicom.exe
/file-gbr
/file-gbr.exe
/file-gegl
/file-gegl.exe
/file-gif-load
/file-gif-load.exe
/file-gif-save

17
plug-ins/common/Makefile.am
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@ -96,6 +96,7 @@ libexec_PROGRAMS = \
file-desktop-link \
file-dicom \
file-gbr \
file-gegl \
file-gif-load \
file-gif-save \
file-gih \
@ -1088,6 +1089,22 @@ file_gbr_LDADD = \
$(INTLLIBS) \
$(file_gbr_RC)
file_gegl_SOURCES = \
file-gegl.c
file_gegl_LDADD = \
$(libgimp) \
$(libgimpmath) \
$(libgimpconfig) \
$(libgimpcolor) \
$(libgimpbase) \
$(CAIRO_LIBS) \
$(GDK_PIXBUF_LIBS) \
$(GEGL_LIBS) \
$(RT_LIBS) \
$(INTLLIBS) \
$(file_gegl_RC)
file_gif_load_SOURCES = \
file-gif-load.c

256
plug-ins/common/file-gegl.c Normal file
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@ -0,0 +1,256 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* file-gegl.c -- GEGL based file format plug-in
* Copyright (C) 2012 Simon Budig <simon@gimp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <errno.h>
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define LOAD_PROC "file-gegl-load"
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint32 load_image (const gchar *filename,
GError **error);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query proc */
run, /* run_proc */
};
MAIN ()
static void
query (void)
{
static const GimpParamDef load_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_STRING, "filename", "The name of the file to load." },
{ GIMP_PDB_STRING, "raw-filename", "The name entered" },
};
static const GimpParamDef load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
gimp_install_procedure (LOAD_PROC,
"Loads images using GEGL.",
"The GEGL image loader.",
"Simon Budig",
"Simon Budig",
"2012",
N_("image via GEGL"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args, load_return_vals);
#warning need some EXR magic here.
gimp_register_magic_load_handler (LOAD_PROC,
"exr,hdr",
"",
"");
gimp_register_file_handler_mime (LOAD_PROC, "image/x-exr");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint image_ID;
GError *error = NULL;
INIT_I18N ();
*nreturn_vals = 1;
*return_vals = values;
gegl_init (NULL, NULL);
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
if (strcmp (name, LOAD_PROC) == 0)
{
image_ID = load_image (param[1].data.d_string, &error);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
static gint32
load_image (const gchar *filename,
GError **error)
{
gint32 image_ID = -1;
gint32 layer_ID;
GimpImageType image_type;
GimpImageBaseType base_type;
GimpPrecision precision;
gint width;
gint height;
GeglNode *graph, *sink, *source;
GeglBuffer *src_buf = NULL, *dest_buf = NULL;
const Babl *format, *model, *type;
gimp_progress_init_printf (_("Opening '%s'"),
gimp_filename_to_utf8 (filename));
graph = gegl_node_new ();
sink = gegl_node_new_child (graph,
"operation", "gegl:buffer-sink",
"buffer", &src_buf,
NULL);
source = gegl_node_new_child (graph,
"operation", "gegl:load",
"path", filename,
NULL);
gegl_node_connect_to (source, "output",
sink, "input");
gegl_node_process (sink);
g_object_unref (graph);
if (!src_buf)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Could not open '%s'"),
gimp_filename_to_utf8 (filename));
return -1;
}
gimp_progress_update (80);
width = gegl_buffer_get_width (src_buf);
height = gegl_buffer_get_height (src_buf);
format = gegl_buffer_get_format (src_buf);
model = babl_format_get_model (format);
if (model == babl_model ("Y") ||
model == babl_model ("Y'") ||
model == babl_model ("YA") ||
model == babl_model ("Y'A"))
{
base_type = GIMP_GRAY;
if (babl_format_has_alpha (format))
image_type = GIMP_GRAYA_IMAGE;
else
image_type = GIMP_GRAY_IMAGE;
}
else if (babl_format_is_palette (format))
{
base_type = GIMP_INDEXED;
if (babl_format_has_alpha (format))
image_type = GIMP_INDEXEDA_IMAGE;
else
image_type = GIMP_INDEXED_IMAGE;
}
else
{
base_type = GIMP_RGB;
if (babl_format_has_alpha (format))
image_type = GIMP_RGBA_IMAGE;
else
image_type = GIMP_RGB_IMAGE;
}
type = babl_format_get_type (format, 0);
if (type == babl_type ("u8"))
precision = GIMP_PRECISION_U8;
else if (type == babl_type ("u16"))
precision = GIMP_PRECISION_U16;
else if (type == babl_type ("u32"))
precision = GIMP_PRECISION_U32;
else if (type == babl_type ("half"))
precision = GIMP_PRECISION_HALF;
else
precision = GIMP_PRECISION_FLOAT;
image_ID = gimp_image_new_with_precision (width, height,
base_type, precision);
gimp_image_set_filename (image_ID, filename);
layer_ID = gimp_layer_new (image_ID,
_("Background"),
width, height,
image_type, 100, GIMP_NORMAL_MODE);
gimp_image_insert_layer (image_ID, layer_ID, -1, 0);
dest_buf = gimp_drawable_get_buffer (layer_ID);
gegl_buffer_copy (src_buf, NULL, dest_buf, NULL);
g_object_unref (src_buf);
g_object_unref (dest_buf);
gimp_progress_update (100);
return image_ID;
}

1
plug-ins/common/gimprc.common
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@ -50,6 +50,7 @@ file_csource_RC = file-csource.rc.o
file_desktop_link_RC = file-desktop-link.rc.o
file_dicom_RC = file-dicom.rc.o
file_gbr_RC = file-gbr.rc.o
file_gegl_RC = file-gegl.rc.o
file_gif_load_RC = file-gif-load.rc.o
file_gif_save_RC = file-gif-save.rc.o
file_gih_RC = file-gih.rc.o

1
plug-ins/common/plugin-defs.pl
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@ -51,6 +51,7 @@
'file-desktop-link' => {},
'file-dicom' => { ui => 1, cflags => '-fno-strict-aliasing' },
'file-gbr' => { ui => 1 },
'file-gegl' => { gegl => 1 },
'file-gif-load' => {},
'file-gif-save' => { ui => 1 },
'file-gih' => { ui => 1 },