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gimp/plug-ins/common/compose.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Compose plug-in (C) 1997,1999 Peter Kirchgessner
* e-mail: peter@kirchgessner.net, WWW: http://www.kirchgessner.net
*
* 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/>.
*/
/*
* This plug-in composes RGB-images from several types of channels
*/
/* Lab colorspace support originally written by Alexey Dyachenko,
* merged into the official plug-in by Sven Neumann.
*
* Support for channels empty or filled with a single mask value
* added by Sylvain FORET.
*/
/*
* All redundant _256 versions of YCbCr* are here only for compatibility .
* They can be dropped for GIMP 3.0
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define COMPOSE_PROC "plug-in-compose"
#define DRAWABLE_COMPOSE_PROC "plug-in-drawable-compose"
#define RECOMPOSE_PROC "plug-in-recompose"
#define PLUG_IN_BINARY "compose"
#define PLUG_IN_ROLE "gimp-compose"
/* Maximum number of images to compose */
#define MAX_COMPOSE_IMAGES 4
typedef struct
{
union
{
gint32 ID; /* Image ID of input images or drawable */
guchar val; /* Mask value to compose with */
} comp;
gboolean is_ID;
} ComposeInput;
/* Description of a component */
typedef struct
{
const gchar *babl_name;
const gchar *name;
const gchar *icon;
const float range_min; /* val min of the component */
const float range_max; /* val max of the component */
const gboolean is_perceptual; /* Take the componenent from an Y' or Y buffer */
} COMPONENT_DSC;
/* Description of a composition */
typedef struct
{
const gchar *babl_model;
const gchar *compose_type; /* Type of composition ("RGB", "RGBA",...) */
gint num_images; /* Number of input images needed */
/* Channel informations */
const COMPONENT_DSC components[MAX_COMPOSE_IMAGES];
const gchar *filename; /* Name of new image */
} COMPOSE_DSC;
/* Declare local functions
*/
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void cpn_affine_transform (GeglBuffer *buffer,
gdouble min,
gdouble max);
static void fill_buffer_from_components (GeglBuffer *temp[MAX_COMPOSE_IMAGES],
GeglBuffer *dst,
gint num_cpn,
ComposeInput *inputs,
gdouble mask_vals[MAX_COMPOSE_IMAGES]);
static void perform_composition (COMPOSE_DSC curr_compose_dsc,
GeglBuffer *buffer_src[MAX_COMPOSE_IMAGES],
GeglBuffer *buffer_dst,
ComposeInput *inputs,
gint num_images);
static gint32 compose (const gchar *compose_type,
ComposeInput *inputs,
gboolean compose_by_drawable);
static gint32 create_new_image (const gchar *filename,
guint width,
guint height,
GimpImageType gdtype,
GimpPrecision precision,
gint32 *layer_ID,
GeglBuffer **drawable);
static gboolean compose_dialog (const gchar *compose_type,
gint32 drawable_ID);
static gboolean check_gray (gint32 image_id,
gint32 drawable_id,
gpointer data);
static void combo_callback (GimpIntComboBox *cbox,
gpointer data);
static void scale_callback (GtkAdjustment *adj,
ComposeInput *input);
static void check_response (GtkWidget *dialog,
gint response,
gpointer data);
static void type_combo_callback (GimpIntComboBox *combo,
gpointer data);
/* Decompositions availables.
* All the following values have to be kept in sync with those of decompose.c
*/
#define CPN_RGBA_R { "R", N_("_Red:"), GIMP_ICON_CHANNEL_RED, 0.0, 1.0, FALSE}
#define CPN_RGBA_G { "G", N_("_Green:"), GIMP_ICON_CHANNEL_GREEN, 0.0, 1.0, FALSE}
#define CPN_RGBA_B { "B", N_("_Blue:"), GIMP_ICON_CHANNEL_BLUE, 0.0, 1.0, FALSE}
#define CPN_RGBA_A { "A", N_("_Alpha:"), GIMP_ICON_CHANNEL_ALPHA, 0.0, 1.0, TRUE}
#define CPN_HSV_H { "hue", N_("_Hue:"), NULL, 0.0, 1.0, TRUE}
#define CPN_HSV_S { "saturation", N_("_Saturation:"), NULL, 0.0, 1.0, TRUE}
#define CPN_HSV_V { "value", N_("_Value:"), NULL, 0.0, 1.0, TRUE}
#define CPN_HSL_H { "hue", N_("_Hue:"), NULL, 0.0, 1.0, TRUE}
#define CPN_HSL_S { "saturation", N_("_Saturation:"), NULL, 0.0, 1.0, TRUE}
#define CPN_HSL_L { "lightness", N_("_Lightness:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMYK_C { "cyan", N_("_Cyan:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMYK_M { "magenta", N_("_Magenta:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMYK_Y { "yellow", N_("_Yellow:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMYK_K { "key", N_("_Black:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMY_C { "cyan", N_("_Cyan:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMY_M { "magenta", N_("_Magenta:"), NULL, 0.0, 1.0, TRUE}
#define CPN_CMY_Y { "yellow", N_("_Yellow:"), NULL, 0.0, 1.0, TRUE}
#define CPN_LAB_L { "CIE L", N_("_L:"), NULL, 0.0, 100.0, TRUE}
#define CPN_LAB_A { "CIE a", N_("_A:"), NULL, -127.5, 127.5, TRUE}
#define CPN_LAB_B { "CIE b", N_("_B:"), NULL, -127.5, 127.5, TRUE}
#define CPN_LCH_L { "CIE L", N_("_L"), NULL, 0.0, 100.0, TRUE}
#define CPN_LCH_C { "CIE C(ab)", N_("_C"), NULL, 0.0, 200.0, TRUE}
#define CPN_LCH_H { "CIE H(ab)", N_("_H"), NULL, 0.0, 360.0, TRUE}
#define CPN_YCBCR_Y { "Y'", N_("_Luma y470:"), NULL, 0.0, 1.0, TRUE }
#define CPN_YCBCR_CB { "Cb", N_("_Blueness cb470:"), NULL, -0.5, 0.5, TRUE }
#define CPN_YCBCR_CR { "Cr", N_("_Redness cr470:"), NULL, -0.5, 0.5, TRUE }
#define CPN_YCBCR709_Y { "Y'", N_("_Luma y709:"), NULL, 0.0, 1.0, TRUE }
#define CPN_YCBCR709_CB { "Cb", N_("_Blueness cb709:"), NULL, -0.5, 0.5, TRUE }
#define CPN_YCBCR709_CR { "Cr", N_("_Redness cr709:"), NULL, -0.5, 0.5, TRUE }
static COMPOSE_DSC compose_dsc[] =
{
{ "RGB",
N_("RGB"), 3,
{ CPN_RGBA_R,
CPN_RGBA_G,
CPN_RGBA_B },
"rgb-compose" },
{ "RGBA",
N_("RGBA"), 4,
{ CPN_RGBA_R,
CPN_RGBA_G,
CPN_RGBA_B,
CPN_RGBA_A },
"rgba-compose" },
{ "HSV",
N_("HSV"), 3,
{ CPN_HSV_H,
CPN_HSV_S,
CPN_HSV_V },
"hsv-compose" },
{ "HSL",
N_("HSL"), 3,
{ CPN_HSL_H,
CPN_HSL_S,
CPN_HSL_L },
"hsl-compose" },
{ "CMY",
N_("CMY"), 3,
{ CPN_CMY_C,
CPN_CMY_M,
CPN_CMY_Y },
"cmy-compose" },
{ "CMYK",
N_("CMYK"), 4,
{ CPN_CMYK_C,
CPN_CMYK_M,
CPN_CMYK_Y,
CPN_CMYK_K },
"cmyk-compose" },
{ "CIE Lab",
N_("LAB"), 3,
{ CPN_LAB_L,
CPN_LAB_A,
CPN_LAB_B },
"lab-compose" },
{ "CIE LCH(ab)",
N_("LCH"), 3,
{ CPN_LCH_L,
CPN_LCH_C,
CPN_LCH_H },
"lch-compose" },
{ "Y'CbCr",
N_("YCbCr_ITU_R470"), 3,
{ CPN_YCBCR_Y,
CPN_YCBCR_CB,
CPN_YCBCR_CR },
"ycbcr470-compose" },
{ "Y'CbCr709",
N_("YCbCr_ITU_R709"), 3,
{ CPN_YCBCR709_Y,
CPN_YCBCR709_CB,
CPN_YCBCR709_CR },
"ycbcr709-compose" },
{ "Y'CbCr",
N_("YCbCr_ITU_R470_256"), 3,
{ CPN_YCBCR_Y,
CPN_YCBCR_CB,
CPN_YCBCR_CR },
"ycbcr470F-compose" },
{ "Y'CbCr709",
N_("YCbCr_ITU_R709_256"), 3,
{ CPN_YCBCR709_Y,
CPN_YCBCR709_CB,
CPN_YCBCR709_CR },
"ycbcr709F-compose" }
};
typedef struct
{
ComposeInput inputs[MAX_COMPOSE_IMAGES]; /* Image IDs or mask value of input */
gchar compose_type[32]; /* type of composition */
gboolean do_recompose;
gint32 source_layer_ID; /* for recomposing */
} ComposeVals;
/* Dialog structure */
typedef struct
{
gint width, height; /* Size of selected image */
GtkWidget *channel_label[MAX_COMPOSE_IMAGES]; /* The labels to change */
GtkWidget *channel_icon[MAX_COMPOSE_IMAGES]; /* The icons */
GtkWidget *channel_menu[MAX_COMPOSE_IMAGES]; /* The menus */
GtkWidget *color_scales[MAX_COMPOSE_IMAGES]; /* The values color scales */
GtkWidget *color_spins[MAX_COMPOSE_IMAGES]; /* The values spin buttons */
ComposeInput selected[MAX_COMPOSE_IMAGES]; /* Image Ids or mask values from menus */
gint compose_idx; /* Compose type */
} ComposeInterface;
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static ComposeVals composevals =
{
{{{ 0 }}}, /* Image IDs of images to compose or mask values */
"rgb", /* Type of composition */
FALSE, /* Do recompose */
-1 /* source layer ID */
};
static ComposeInterface composeint =
{
0, 0, /* width, height */
{ NULL }, /* Label Widgets */
{ NULL }, /* Icon Widgets */
{ NULL }, /* Menu Widgets */
{ NULL }, /* Color Scale Widgets */
{ NULL }, /* Color Spin Widgets */
{{{ 0 }}}, /* Image Ids or mask values from menus */
0 /* Compose type */
};
MAIN ()
static void
query (void)
{
static GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image1", "First input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable (not used)" },
{ GIMP_PDB_IMAGE, "image2", "Second input image" },
{ GIMP_PDB_IMAGE, "image3", "Third input image" },
{ GIMP_PDB_IMAGE, "image4", "Fourth input image" },
{ GIMP_PDB_STRING, "compose-type", NULL }
};
static const GimpParamDef return_vals[] =
{
{ GIMP_PDB_IMAGE, "new_image", "Output image" }
};
static GimpParamDef drw_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image1", "First input image (not used)" },
{ GIMP_PDB_DRAWABLE, "drawable1", "First input drawable" },
{ GIMP_PDB_DRAWABLE, "drawable2", "Second input drawable" },
{ GIMP_PDB_DRAWABLE, "drawable3", "Third input drawable" },
{ GIMP_PDB_DRAWABLE, "drawable4", "Fourth input drawable" },
{ GIMP_PDB_STRING, "compose-type", NULL }
};
static const GimpParamDef drw_return_vals[] =
{
{ GIMP_PDB_IMAGE, "new_image", "Output image" }
};
static const GimpParamDef recompose_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Image to recompose from" },
{ GIMP_PDB_DRAWABLE, "drawable", "Not used" },
};
GString *type_desc;
gint i;
type_desc = g_string_new ("What to compose: ");
g_string_append_c (type_desc, '"');
g_string_append (type_desc, compose_dsc[0].compose_type);
g_string_append_c (type_desc, '"');
for (i = 1; i < G_N_ELEMENTS (compose_dsc); i++)
{
g_string_append (type_desc, ", ");
g_string_append_c (type_desc, '"');
g_string_append (type_desc, compose_dsc[i].compose_type);
g_string_append_c (type_desc, '"');
}
args[6].description = type_desc->str;
drw_args[6].description = type_desc->str;
gimp_install_procedure (COMPOSE_PROC,
N_("Create an image using multiple gray images as color channels"),
"This function creates a new image from "
"multiple gray images",
"Peter Kirchgessner",
"Peter Kirchgessner (peter@kirchgessner.net)",
"1997",
N_("C_ompose..."),
"GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args),
G_N_ELEMENTS (return_vals),
args, return_vals);
gimp_plugin_menu_register (COMPOSE_PROC, "<Image>/Colors/Components");
gimp_install_procedure (DRAWABLE_COMPOSE_PROC,
"Compose an image from multiple drawables of gray images",
"This function creates a new image from "
"multiple drawables of gray images",
"Peter Kirchgessner",
"Peter Kirchgessner (peter@kirchgessner.net)",
"1998",
NULL, /* It is not available in interactive mode */
"GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (drw_args),
G_N_ELEMENTS (drw_return_vals),
drw_args, drw_return_vals);
gimp_install_procedure (RECOMPOSE_PROC,
N_("Recompose an image that was previously decomposed"),
"This function recombines the grayscale layers produced "
"by Decompose into a single RGB or RGBA layer, and "
"replaces the originally decomposed layer with the "
"result.",
"Bill Skaggs",
"Bill Skaggs",
"2004",
N_("R_ecompose"),
"GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (recompose_args), 0,
recompose_args, NULL);
gimp_plugin_menu_register (RECOMPOSE_PROC, "<Image>/Colors/Components");
g_string_free (type_desc, TRUE);
}
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;
GimpRunMode run_mode;
gint32 image_ID;
gint32 drawable_ID = -1;
gint compose_by_drawable;
gint i;
INIT_I18N ();
gegl_init (NULL, NULL);
run_mode = param[0].data.d_int32;
compose_by_drawable = (strcmp (name, DRAWABLE_COMPOSE_PROC) == 0);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_int32 = -1;
if (strcmp (name, RECOMPOSE_PROC) == 0)
{
GimpParasite *parasite = gimp_image_get_parasite (param[1].data.d_image,
"decompose-data");
if (! parasite)
{
g_message (_("You can only run 'Recompose' if the active image "
"was originally produced by 'Decompose'."));
status = GIMP_PDB_EXECUTION_ERROR;
}
else
{
gint nret;
nret = sscanf (gimp_parasite_data (parasite),
"source=%d type=%31s %d %d %d %d",
&composevals.source_layer_ID,
composevals.compose_type,
&composevals.inputs[0].comp.ID,
&composevals.inputs[1].comp.ID,
&composevals.inputs[2].comp.ID,
&composevals.inputs[3].comp.ID);
gimp_parasite_free (parasite);
for (i = 0; i < MAX_COMPOSE_IMAGES; i++)
composevals.inputs[i].is_ID = TRUE;
if (nret < 5)
{
g_message (_("Error scanning 'decompose-data' parasite: "
"too few layers found"));
status = GIMP_PDB_EXECUTION_ERROR;
}
else
{
composevals.do_recompose = TRUE;
compose_by_drawable = TRUE;
}
}
}
else
{
composevals.do_recompose = FALSE;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data (name, &composevals);
compose_by_drawable = TRUE;
/* The dialog is now drawable based. Get a drawable-ID of the image */
if (strcmp (name, COMPOSE_PROC) == 0)
{
gint32 *layer_list;
gint nlayers;
layer_list = gimp_image_get_layers (param[1].data.d_int32,
&nlayers);
if ((layer_list == NULL) || (nlayers <= 0))
{
g_message (_("Could not get layers for image %d"),
(gint) param[1].data.d_int32);
return;
}
drawable_ID = layer_list[0];
g_free (layer_list);
}
else
{
drawable_ID = param[2].data.d_int32;
}
/* First acquire information with a dialog */
if (! compose_dialog (composevals.compose_type, drawable_ID))
return;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams < 7)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
composevals.inputs[0].comp.ID = (compose_by_drawable ?
param[2].data.d_int32 :
param[1].data.d_int32);
composevals.inputs[1].comp.ID = param[3].data.d_int32;
composevals.inputs[2].comp.ID = param[4].data.d_int32;
composevals.inputs[3].comp.ID = param[5].data.d_int32;
strncpy (composevals.compose_type, param[6].data.d_string,
sizeof (composevals.compose_type));
composevals.compose_type[sizeof (composevals.compose_type)-1] = '\0';
for (i = 0; i < MAX_COMPOSE_IMAGES; i++)
{
if (composevals.inputs[i].comp.ID == -1)
{
composevals.inputs[i].is_ID = FALSE;
composevals.inputs[i].comp.val = 0;
}
else
{
composevals.inputs[i].is_ID = TRUE;
}
}
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (name, &composevals);
compose_by_drawable = TRUE;
break;
default:
break;
}
}
if (status == GIMP_PDB_SUCCESS)
{
gimp_progress_init (_("Composing"));
image_ID = compose (composevals.compose_type,
composevals.inputs,
compose_by_drawable);
if (image_ID < 0)
{
status = GIMP_PDB_EXECUTION_ERROR;
}
else
{
values[1].data.d_int32 = image_ID;
if (composevals.do_recompose)
{
gimp_displays_flush ();
}
else
{
gimp_image_undo_enable (image_ID);
gimp_image_clean_all (image_ID);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_display_new (image_ID);
}
}
/* Store data */
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (name, &composevals, sizeof (ComposeVals));
}
*nreturn_vals = composevals.do_recompose ? 1 : 2;
values[0].data.d_status = status;
}
static void
cpn_affine_transform (GeglBuffer *buffer,
gdouble min,
gdouble max)
{
GeglBufferIterator *gi;
const gdouble scale = max - min;
const gdouble offset = min;
/* We want to scale values linearly, regardless of the format of the buffer */
gegl_buffer_set_format (buffer, babl_format ("Y double"));
gi = gegl_buffer_iterator_new (buffer, NULL, 0, NULL,
GEGL_ACCESS_READWRITE, GEGL_ABYSS_NONE);
while (gegl_buffer_iterator_next (gi))
{
gdouble *data = gi->data[0];
guint k;
for (k = 0; k < gi->length; k++)
{
data[k] = data[k] * scale + offset;
}
}
}
static void
fill_buffer_from_components (GeglBuffer *temp[MAX_COMPOSE_IMAGES],
GeglBuffer *dst,
gint num_cpn,
ComposeInput *inputs,
gdouble mask_vals[MAX_COMPOSE_IMAGES])
{
GeglBufferIterator *gi;
gint j;
gi = gegl_buffer_iterator_new (dst, NULL, 0, NULL,
GEGL_ACCESS_WRITE, GEGL_ABYSS_NONE);
for (j = 0; j < num_cpn; j++)
{
if (inputs[j].is_ID)
gegl_buffer_iterator_add (gi, temp[j], NULL, 0, NULL,
GEGL_ACCESS_READ, GEGL_ABYSS_NONE);
}
while (gegl_buffer_iterator_next (gi))
{
gdouble *src_data[MAX_COMPOSE_IMAGES];
gdouble *dst_data = (gdouble*) gi->data[0];
gulong k, count;
count = 1;
for (j = 0; j < num_cpn; j++)
if (inputs[j].is_ID)
src_data[j] = (gdouble*) gi->data[count++];
for (k = 0; k < gi->length; k++)
{
gulong pos = k * num_cpn;
for (j = 0; j < num_cpn; j++)
{
if (inputs[j].is_ID)
dst_data[pos+j] = src_data[j][k];
else
dst_data[pos+j] = mask_vals[j];
}
}
}
}
static void
perform_composition (COMPOSE_DSC curr_compose_dsc,
GeglBuffer *buffer_src[MAX_COMPOSE_IMAGES],
GeglBuffer *buffer_dst,
ComposeInput *inputs,
gint num_images)
{
const Babl *dst_format;
GeglBuffer *temp[MAX_COMPOSE_IMAGES];
GeglBuffer *dst_temp;
const GeglRectangle *extent = NULL;
const COMPONENT_DSC *components;
gdouble mask_vals[MAX_COMPOSE_IMAGES];
gint i;
components = curr_compose_dsc.components;
/* Get all individual components in gray buffers */
for (i = 0; i < num_images; i++)
{
COMPONENT_DSC cpn_dsc = components[i];
const Babl *gray_format;
if (cpn_dsc.is_perceptual)
gray_format = babl_format ("Y' double");
else
gray_format = babl_format ("Y double");
if (! inputs[i].is_ID)
{
const Babl *fish = babl_fish (babl_format ("Y' u8"), gray_format);
babl_process (fish, &inputs[i].comp.val, &mask_vals[i], 1);
mask_vals[i] = mask_vals[i] * (cpn_dsc.range_max - cpn_dsc.range_min) + cpn_dsc.range_min;
}
else
{
extent = gegl_buffer_get_extent (buffer_src[i]);
temp[i] = gegl_buffer_new (extent, gray_format);
gegl_buffer_copy (buffer_src[i], NULL, GEGL_ABYSS_NONE, temp[i], NULL);
if (cpn_dsc.range_min != 0.0 || cpn_dsc.range_max != 1.0)
cpn_affine_transform (temp[i], cpn_dsc.range_min, cpn_dsc.range_max);
}
gimp_progress_update ((gdouble) i / (gdouble) (num_images + 1.0));
}
dst_format = babl_format_new (babl_model (curr_compose_dsc.babl_model),
babl_type ("double"),
babl_component (components[0].babl_name),
num_images > 1 ? babl_component (components[1].babl_name) : NULL,
num_images > 2 ? babl_component (components[2].babl_name) : NULL,
num_images > 3 ? babl_component (components[3].babl_name) : NULL,
NULL);
/* extent is not NULL because there is at least one drawable */
dst_temp = gegl_buffer_new (extent, dst_format);
/* Gather all individual components in the dst_format buffer */
fill_buffer_from_components (temp, dst_temp, num_images, inputs, mask_vals);
gimp_progress_update ((gdouble) num_images / (gdouble) (num_images + 1.0));
/* Copy back to the format GIMP wants (and perform the conversion in itself) */
gegl_buffer_copy (dst_temp, NULL, GEGL_ABYSS_NONE, buffer_dst, NULL);
for (i = 0; i< num_images; i++)
if( inputs[i].is_ID)
g_object_unref (temp[i]);
g_object_unref (dst_temp);
}
/* Compose an image from several gray-images */
static gint32
compose (const gchar *compose_type,
ComposeInput *inputs,
gboolean compose_by_drawable)
{
gint width, height;
gint num_images, compose_idx;
gint i, j;
gint num_layers;
gint32 layer_ID_dst, image_ID_dst;
gint first_ID;
GimpImageType gdtype_dst;
GeglBuffer *buffer_src[MAX_COMPOSE_IMAGES];
GeglBuffer *buffer_dst;
GimpPrecision precision;
/* Search type of composing */
compose_idx = -1;
for (j = 0; j < G_N_ELEMENTS (compose_dsc); j++)
{
if (g_ascii_strcasecmp (compose_type, compose_dsc[j].compose_type) == 0)
{
compose_idx = j;
break;
}
}
if (compose_idx < 0)
return -1;
num_images = compose_dsc[compose_idx].num_images;
/* Check that at least one image or one drawable is provided */
first_ID = -1;
for (i = 0; i < num_images; i++)
{
if (inputs[i].is_ID)
{
first_ID = i;
break;
}
}
if (-1 == first_ID)
{
g_message (_("At least one image is needed to compose"));
return -1;
}
/* Check image sizes */
if (compose_by_drawable)
{
gint32 first_image = gimp_item_get_image (inputs[first_ID].comp.ID);
if (! gimp_item_is_valid (inputs[first_ID].comp.ID))
{
g_message (_("Specified layer %d not found"),
inputs[first_ID].comp.ID);
return -1;
}
width = gimp_drawable_width (inputs[first_ID].comp.ID);
height = gimp_drawable_height (inputs[first_ID].comp.ID);
precision = gimp_image_get_precision (first_image);
for (j = first_ID + 1; j < num_images; j++)
{
if (inputs[j].is_ID)
{
if (! gimp_item_is_valid (inputs[j].comp.ID))
{
g_message (_("Specified layer %d not found"),
inputs[j].comp.ID);
return -1;
}
if ((width != gimp_drawable_width (inputs[j].comp.ID)) ||
(height != gimp_drawable_height (inputs[j].comp.ID)))
{
g_message (_("Drawables have different size"));
return -1;
}
}
}
for (j = 0; j < num_images; j++)
{
if (inputs[j].is_ID)
buffer_src[j] = gimp_drawable_get_buffer (inputs[j].comp.ID);
else
buffer_src[j] = NULL;
}
}
else /* Compose by image ID */
{
width = gimp_image_width (inputs[first_ID].comp.ID);
height = gimp_image_height (inputs[first_ID].comp.ID);
precision = gimp_image_get_precision (inputs[first_ID].comp.ID);
for (j = first_ID + 1; j < num_images; j++)
{
if (inputs[j].is_ID)
{
if ((width != gimp_image_width (inputs[j].comp.ID)) ||
(height != gimp_image_height (inputs[j].comp.ID)))
{
g_message (_("Images have different size"));
return -1;
}
}
}
/* Get first layer/drawable for all input images */
for (j = 0; j < num_images; j++)
{
if (inputs[j].is_ID)
{
gint32 *layers;
/* Get first layer of image */
layers = gimp_image_get_layers (inputs[j].comp.ID, &num_layers);
if (! layers || (num_layers <= 0))
{
g_message (_("Error in getting layer IDs"));
return -1;
}
/* Get drawable for layer */
buffer_src[j] = gimp_drawable_get_buffer (layers[0]);
g_free (layers);
}
}
}
/* Unless recomposing, create new image */
if (composevals.do_recompose)
{
layer_ID_dst = composevals.source_layer_ID;
if (! gimp_item_is_valid (layer_ID_dst))
{
g_message (_("Unable to recompose, source layer not found"));
return -1;
}
image_ID_dst = gimp_item_get_image (layer_ID_dst);
buffer_dst = gimp_drawable_get_shadow_buffer (layer_ID_dst);
}
else
{
gdtype_dst = ((babl_model (compose_dsc[compose_idx].babl_model) == babl_model ("RGBA")) ?
GIMP_RGBA_IMAGE : GIMP_RGB_IMAGE);
image_ID_dst = create_new_image (compose_dsc[compose_idx].filename,
width, height, gdtype_dst, precision,
&layer_ID_dst, &buffer_dst);
}
if (! compose_by_drawable)
{
gdouble xres, yres;
gimp_image_get_resolution (inputs[first_ID].comp.ID, &xres, &yres);
gimp_image_set_resolution (image_ID_dst, xres, yres);
}
perform_composition (compose_dsc[compose_idx],
buffer_src,
buffer_dst,
inputs,
num_images);
gimp_progress_update (1.0);
for (j = 0; j < num_images; j++)
{
if (inputs[j].is_ID)
g_object_unref (buffer_src[j]);
}
g_object_unref (buffer_dst);
if (composevals.do_recompose)
gimp_drawable_merge_shadow (layer_ID_dst, TRUE);
gimp_drawable_update (layer_ID_dst, 0, 0,
gimp_drawable_width (layer_ID_dst),
gimp_drawable_height (layer_ID_dst));
return image_ID_dst;
}
/* Create an image. Sets layer_ID, drawable and rgn. Returns image_ID */
static gint32
create_new_image (const gchar *filename,
guint width,
guint height,
GimpImageType gdtype,
GimpPrecision precision,
gint32 *layer_ID,
GeglBuffer **buffer)
{
gint32 image_ID;
GimpImageBaseType gitype;
if ((gdtype == GIMP_GRAY_IMAGE) || (gdtype == GIMP_GRAYA_IMAGE))
gitype = GIMP_GRAY;
else if ((gdtype == GIMP_INDEXED_IMAGE) || (gdtype == GIMP_INDEXEDA_IMAGE))
gitype = GIMP_INDEXED;
else
gitype = GIMP_RGB;
image_ID = gimp_image_new_with_precision (width, height, gitype, precision);
gimp_image_undo_disable (image_ID);
gimp_image_set_filename (image_ID, filename);
*layer_ID = gimp_layer_new (image_ID, _("Background"), width, height,
gdtype,
100,
gimp_image_get_default_new_layer_mode (image_ID));
gimp_image_insert_layer (image_ID, *layer_ID, -1, 0);
*buffer = gimp_drawable_get_buffer (*layer_ID);
return image_ID;
}
static gboolean
compose_dialog (const gchar *compose_type,
gint32 drawable_ID)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *combo;
GtkWidget *table;
GtkSizeGroup *size_group;
gint32 *layer_list;
gint nlayers;
gint j;
gboolean run;
/* Check default compose type */
composeint.compose_idx = 0;
for (j = 0; j < G_N_ELEMENTS (compose_dsc); j++)
{
if (g_ascii_strcasecmp (compose_type, compose_dsc[j].compose_type) == 0)
{
composeint.compose_idx = j;
break;
}
}
/* Save original image width/height */
composeint.width = gimp_drawable_width (drawable_ID);
composeint.height = gimp_drawable_height (drawable_ID);
gimp_ui_init (PLUG_IN_BINARY, TRUE);
layer_list = gimp_image_get_layers (gimp_item_get_image (drawable_ID),
&nlayers);
dialog = gimp_dialog_new (_("Compose"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, COMPOSE_PROC,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_signal_connect (dialog, "response",
G_CALLBACK (check_response),
NULL);
gimp_window_set_transient (GTK_WINDOW (dialog));
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
/* Compose type combo */
frame = gimp_frame_new (_("Compose Channels"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
label = gtk_label_new_with_mnemonic (_("Color _model:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_size_group_add_widget (size_group, label);
g_object_unref (size_group);
combo = g_object_new (GIMP_TYPE_INT_COMBO_BOX, NULL);
for (j = 0; j < G_N_ELEMENTS (compose_dsc); j++)
{
gchar *label = g_strdup (gettext (compose_dsc[j].compose_type));
gchar *l;
for (l = label; *l; l++)
if (*l == '-' || *l == '_')
*l = ' ';
gimp_int_combo_box_append (GIMP_INT_COMBO_BOX (combo),
GIMP_INT_STORE_LABEL, label,
GIMP_INT_STORE_VALUE, j,
-1);
g_free (label);
}
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
/* Channel representation table */
frame = gimp_frame_new (_("Channel Representations"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
table = gtk_table_new (MAX_COMPOSE_IMAGES, 4, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
for (j = 0; j < MAX_COMPOSE_IMAGES; j++)
{
GtkWidget *image;
GtkWidget *label;
GtkWidget *combo;
GtkObject *scale;
GtkTreeIter iter;
GtkTreeModel *model;
GdkPixbuf *ico;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_table_attach (GTK_TABLE (table), hbox, 0, 1, j, j + 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (hbox);
gtk_size_group_add_widget (size_group, hbox);
composeint.channel_icon[j] = image = gtk_image_new ();
gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
gtk_widget_show (image);
composeint.channel_label[j] = label = gtk_label_new_with_mnemonic ("");
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
if (composeint.compose_idx >= 0 &&
nlayers >= compose_dsc[composeint.compose_idx].num_images &&
j < nlayers)
{
composeint.selected[j].comp.ID = layer_list[j];
}
else
{
composeint.selected[j].comp.ID = drawable_ID;
}
composeint.selected[j].is_ID = TRUE;
combo = gimp_drawable_combo_box_new (check_gray, NULL);
composeint.channel_menu[j] = combo;
ico = gtk_widget_render_icon (dialog,
GIMP_ICON_CHANNEL_GRAY,
GTK_ICON_SIZE_BUTTON, NULL);
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
GIMP_INT_STORE_VALUE, -1,
GIMP_INT_STORE_LABEL, _("Mask value"),
GIMP_INT_STORE_PIXBUF, ico,
-1);
g_object_unref (ico);
gtk_table_attach (GTK_TABLE (table), combo, 1, 2, j, j + 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (combo);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
scale = gimp_color_scale_entry_new (GTK_TABLE (table), 2, j, NULL,
100, 4,
255.0, 0.0, 255.0, 1.0, 10.0, 0,
NULL, NULL);
composeint.color_scales[j] = GIMP_SCALE_ENTRY_SCALE (scale);
composeint.color_spins[j] = GIMP_SCALE_ENTRY_SPINBUTTON (scale);
gtk_widget_set_sensitive (composeint.color_scales[j], FALSE);
gtk_widget_set_sensitive (composeint.color_spins[j], FALSE);
g_signal_connect (scale, "value-changed",
G_CALLBACK (scale_callback),
&composeint.selected[j]);
/* This has to be connected last otherwise it will emit before
* combo_callback has any scale and spinbutton to work with
*/
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
composeint.selected[j].comp.ID,
G_CALLBACK (combo_callback),
GINT_TO_POINTER (j));
}
g_free (layer_list);
/* Calls the combo callback and sets icons, labels and sensitivity */
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
composeint.compose_idx,
G_CALLBACK (type_combo_callback),
NULL);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
if (run)
{
gint j;
for (j = 0; j < MAX_COMPOSE_IMAGES; j++)
{
composevals.inputs[j].is_ID = composeint.selected[j].is_ID;
if (composevals.inputs[j].is_ID)
composevals.inputs[j].comp.ID = composeint.selected[j].comp.ID;
else
composevals.inputs[j].comp.val = composeint.selected[j].comp.val;
}
strcpy (composevals.compose_type,
compose_dsc[composeint.compose_idx].compose_type);
}
return run;
}
/* Compose interface functions */
static gboolean
check_gray (gint32 image_id,
gint32 drawable_id,
gpointer data)
{
return ((gimp_image_base_type (image_id) == GIMP_GRAY) &&
(gimp_image_width (image_id) == composeint.width) &&
(gimp_image_height (image_id) == composeint.height));
}
static void
check_response (GtkWidget *dialog,
gint response,
gpointer data)
{
switch (response)
{
case GTK_RESPONSE_OK:
{
gint i;
gint nb = 0;
gboolean has_image = FALSE;
nb = compose_dsc[composeint.compose_idx].num_images;
for (i = 0; i < nb; i++)
{
if (composeint.selected[i].is_ID)
{
has_image = TRUE;
break;
}
}
if (! has_image)
{
GtkWidget *d;
g_signal_stop_emission_by_name (dialog, "response");
d = gtk_message_dialog_new (GTK_WINDOW (dialog),
GTK_DIALOG_DESTROY_WITH_PARENT |
GTK_DIALOG_MODAL,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
_("At least one image is needed to compose"));
gtk_dialog_run (GTK_DIALOG (d));
gtk_widget_destroy (d);
}
}
break;
default:
break;
}
}
static void
combo_callback (GimpIntComboBox *widget,
gpointer data)
{
gint id;
gint n;
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &id);
n = GPOINTER_TO_INT (data);
if (id == -1)
{
gtk_widget_set_sensitive (composeint.color_scales[n], TRUE);
gtk_widget_set_sensitive (composeint.color_spins[n], TRUE);
composeint.selected[n].is_ID = FALSE;
composeint.selected[n].comp.val =
gtk_range_get_value (GTK_RANGE (composeint.color_scales[n]));
}
else
{
gtk_widget_set_sensitive (composeint.color_scales[n], FALSE);
gtk_widget_set_sensitive (composeint.color_spins[n], FALSE);
composeint.selected[n].is_ID = TRUE;
composeint.selected[n].comp.ID = id;
}
}
static void
scale_callback (GtkAdjustment *adj,
ComposeInput *input)
{
input->comp.val = gtk_adjustment_get_value (adj);
}
static void
type_combo_callback (GimpIntComboBox *combo,
gpointer data)
{
if (gimp_int_combo_box_get_active (combo, &composeint.compose_idx))
{
gboolean combo4;
gboolean scale4;
gint compose_idx;
gint j;
compose_idx = composeint.compose_idx;
for (j = 0; j < MAX_COMPOSE_IMAGES; j++)
{
GtkWidget *label = composeint.channel_label[j];
GtkWidget *image = composeint.channel_icon[j];
const gchar *text = compose_dsc[compose_idx].components[j].name;
const gchar *icon = compose_dsc[compose_idx].components[j].icon;
gtk_label_set_text_with_mnemonic (GTK_LABEL (label),
text ? gettext (text) : "");
if (icon)
{
gtk_image_set_from_icon_name (GTK_IMAGE (image),
icon, GTK_ICON_SIZE_BUTTON);
gtk_widget_show (image);
}
else
{
gtk_image_clear (GTK_IMAGE (image));
gtk_widget_hide (image);
}
}
/* Set sensitivity of last menu */
combo4 = (compose_dsc[compose_idx].num_images == 4);
gtk_widget_set_sensitive (composeint.channel_menu[3], combo4);
scale4 = combo4 && !composeint.selected[3].is_ID;
gtk_widget_set_sensitive (composeint.color_scales[3], scale4);
gtk_widget_set_sensitive (composeint.color_spins[3], scale4);
}
}
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