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gimp/plug-ins/lighting/lighting-main.c

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/* Lighting Effects 0.2.2 -- image filter plug-in for GIMP
*
* Copyright (C) 1996-98 Tom Bech
* Copyright (C) 1996-98 Federico Mena Quintero
*
* E-mail: tomb@gimp.org (Tom) or quartic@gimp.org (Federico)
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include "lighting-apply.h"
#include "lighting-image.h"
#include "lighting-main.h"
#include "lighting-preview.h"
#include "lighting-shade.h"
#include "lighting-ui.h"
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-lighting"
LightingValues mapvals;
/******************/
/* Implementation */
/******************/
/*************************************/
/* Set parameters to standard values */
/*************************************/
static void
set_default_settings (void)
{
gint k;
mapvals.update_enabled = TRUE;
mapvals.light_selected = 0;
mapvals.light_isolated = FALSE;
gimp_vector3_set (&mapvals.viewpoint, 0.5, 0.5, 0.25);
gimp_vector3_set (&mapvals.planenormal, 0.0, 0.0, 1.0);
gimp_vector3_set (&mapvals.lightsource[0].position, -1.0, -1.0, 1.0);
gimp_vector3_set (&mapvals.lightsource[0].direction, -1.0, -1.0, 1.0);
gimp_rgba_set (&mapvals.lightsource[0].color, 1.0, 1.0, 1.0, 1.0);
mapvals.lightsource[0].intensity = 1.0;
mapvals.lightsource[0].type = POINT_LIGHT;
mapvals.lightsource[0].active = TRUE;
/* init lights 2 and 3 pos to upper left and below */
gimp_vector3_set (&mapvals.lightsource[1].position, 2.0, -1.0, 1.0);
gimp_vector3_set (&mapvals.lightsource[1].direction, 1.0, -1.0, 1.0);
gimp_vector3_set (&mapvals.lightsource[2].position, 1.0, 2.0, 1.0);
gimp_vector3_set (&mapvals.lightsource[2].direction, 0.0, 1.0, 1.0);
/* init any remaining lights to directly overhead */
for (k = 3; k < NUM_LIGHTS; k++)
{
gimp_vector3_set (&mapvals.lightsource[k].position, 0.0, 0.0, 1.0);
gimp_vector3_set (&mapvals.lightsource[k].direction, 0.0, 0.0, 1.0);
}
for (k = 1; k < NUM_LIGHTS; k++)
{
gimp_rgba_set (&mapvals.lightsource[k].color, 1.0, 1.0, 1.0, 1.0);
mapvals.lightsource[k].intensity = 1.0;
mapvals.lightsource[k].type = NO_LIGHT;
mapvals.lightsource[k].active = TRUE;
}
mapvals.material.ambient_int = 0.2;
mapvals.material.diffuse_int = 0.5;
mapvals.material.diffuse_ref = 0.4;
mapvals.material.specular_ref = 0.5;
mapvals.material.highlight = 27.0;
mapvals.material.metallic = FALSE;
mapvals.pixel_treshold = 0.25;
mapvals.max_depth = 3.0;
mapvals.preview_zoom_factor = 1.0;
mapvals.bumpmaptype = 0;
mapvals.bumpmin = 0.0;
mapvals.bumpmax = 0.1;
mapvals.antialiasing = FALSE;
mapvals.create_new_image = FALSE;
mapvals.transparent_background = FALSE;
mapvals.bump_mapped = FALSE;
mapvals.env_mapped = FALSE;
mapvals.ref_mapped = FALSE;
mapvals.previewquality = FALSE;
mapvals.interactive_preview = TRUE;
mapvals.bumpmap_id = -1;
mapvals.envmap_id = -1;
}
static void
check_drawables (void)
{
if (mapvals.bump_mapped)
{
if (mapvals.bumpmap_id != -1 &&
gimp_drawable_get_image (mapvals.bumpmap_id) == -1)
{
mapvals.bump_mapped = FALSE;
mapvals.bumpmap_id = -1;
}
if (gimp_drawable_is_indexed (mapvals.bumpmap_id) ||
(gimp_drawable_width (mapvals.drawable_id) !=
gimp_drawable_width (mapvals.bumpmap_id)) ||
(gimp_drawable_height (mapvals.drawable_id) !=
gimp_drawable_height (mapvals.bumpmap_id)))
{
mapvals.bump_mapped = FALSE;
mapvals.bumpmap_id = -1;
}
}
if (mapvals.env_mapped)
{
if (mapvals.envmap_id != -1 &&
gimp_drawable_get_image (mapvals.envmap_id) == -1)
{
mapvals.env_mapped = FALSE;
mapvals.envmap_id = -1;
}
if (gimp_drawable_is_gray (mapvals.envmap_id) ||
gimp_drawable_has_alpha (mapvals.envmap_id))
{
mapvals.env_mapped = FALSE;
mapvals.envmap_id = -1;
}
}
}
static void
query (void)
{
static const GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "Interactive (0), non-interactive (1)" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
{ GIMP_PDB_DRAWABLE, "bumpdrawable", "Bumpmap drawable (set to 0 if disabled)" },
{ GIMP_PDB_DRAWABLE, "envdrawable", "Environmentmap drawable (set to 0 if disabled)" },
{ GIMP_PDB_INT32, "dobumpmap", "Enable bumpmapping (TRUE/FALSE)" },
{ GIMP_PDB_INT32, "doenvmap", "Enable envmapping (TRUE/FALSE)" },
{ GIMP_PDB_INT32, "bumpmaptype", "Type of mapping (0=linear,1=log, 2=sinusoidal, 3=spherical)" },
{ GIMP_PDB_INT32, "lighttype", "Type of lightsource (0=point,1=directional,3=spot,4=none)" },
{ GIMP_PDB_COLOR, "lightcolor", "Lightsource color (r,g,b)" },
{ GIMP_PDB_FLOAT, "lightposition-x", "Lightsource position (x,y,z)" },
{ GIMP_PDB_FLOAT, "lightposition-y", "Lightsource position (x,y,z)" },
{ GIMP_PDB_FLOAT, "lightposition-z", "Lightsource position (x,y,z)" },
{ GIMP_PDB_FLOAT, "lightdirection-x", "Lightsource direction [x,y,z]" },
{ GIMP_PDB_FLOAT, "lightdirection-y", "Lightsource direction [x,y,z]" },
{ GIMP_PDB_FLOAT, "lightdirection-z", "Lightsource direction [x,y,z]" },
{ GIMP_PDB_FLOAT, "ambient-intensity", "Material ambient intensity (0..1)" },
{ GIMP_PDB_FLOAT, "diffuse-intensity", "Material diffuse intensity (0..1)" },
{ GIMP_PDB_FLOAT, "diffuse-reflectivity", "Material diffuse reflectivity (0..1)" },
{ GIMP_PDB_FLOAT, "specular-reflectivity", "Material specular reflectivity (0..1)" },
{ GIMP_PDB_FLOAT, "highlight", "Material highlight (0..->), note: it's expotential" },
{ GIMP_PDB_INT32, "antialiasing", "Apply antialiasing (TRUE/FALSE)" },
{ GIMP_PDB_INT32, "newimage", "Create a new image (TRUE/FALSE)" },
{ GIMP_PDB_INT32, "transparentbackground", "Make background transparent (TRUE/FALSE)" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Apply various lighting effects to an image"),
"No help yet",
"Tom Bech & Federico Mena Quintero",
"Tom Bech & Federico Mena Quintero",
"Version 0.2.0, March 15 1998",
N_("_Lighting Effects..."),
"RGB*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC,
"<Image>/Filters/Light and Shadow/Light");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpDrawable *drawable;
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
run_mode = param[0].data.d_int32;
INIT_I18N ();
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
/* Set default values */
/* ================== */
set_default_settings ();
/* Possibly retrieve data */
/* ====================== */
gimp_get_data (PLUG_IN_PROC, &mapvals);
/* Get the specified drawable */
/* ========================== */
drawable = gimp_drawable_get (param[2].data.d_drawable);
mapvals.drawable_id = drawable->drawable_id;
check_drawables ();
if (status == GIMP_PDB_SUCCESS)
{
/* Make sure that the drawable is RGBA or RGB color */
/* ================================================ */
if (gimp_drawable_is_rgb (drawable->drawable_id))
{
/* Set the tile cache size */
/* ======================= */
gimp_tile_cache_ntiles (TILE_CACHE_SIZE);
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
if (main_dialog (drawable))
{
compute_image ();
gimp_set_data (PLUG_IN_PROC,
&mapvals, sizeof (LightingValues));
gimp_displays_flush ();
}
break;
case GIMP_RUN_WITH_LAST_VALS:
image_setup (drawable, FALSE);
compute_image ();
gimp_displays_flush ();
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 24)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
mapvals.bumpmap_id = param[3].data.d_drawable;
mapvals.envmap_id = param[4].data.d_drawable;
mapvals.bump_mapped = (gint) param[5].data.d_int32;
mapvals.env_mapped = (gint) param[6].data.d_int32;
mapvals.bumpmaptype = (gint) param[7].data.d_int32;
mapvals.lightsource[0].type = (LightType) param[8].data.d_int32;
mapvals.lightsource[0].color = param[9].data.d_color;
mapvals.lightsource[0].position.x = param[10].data.d_float;
mapvals.lightsource[0].position.y = param[11].data.d_float;
mapvals.lightsource[0].position.z = param[12].data.d_float;
mapvals.lightsource[0].direction.x = param[13].data.d_float;
mapvals.lightsource[0].direction.y = param[14].data.d_float;
mapvals.lightsource[0].direction.z = param[15].data.d_float;
mapvals.material.ambient_int = param[16].data.d_float;
mapvals.material.diffuse_int = param[17].data.d_float;
mapvals.material.diffuse_ref = param[18].data.d_float;
mapvals.material.specular_ref = param[19].data.d_float;
mapvals.material.highlight = param[20].data.d_float;
mapvals.antialiasing = (gint) param[21].data.d_int32;
mapvals.create_new_image = (gint) param[22].data.d_int32;
mapvals.transparent_background = (gint) param[23].data.d_int32;
check_drawables ();
image_setup (drawable, FALSE);
compute_image ();
}
default:
break;
}
}
else
status = GIMP_PDB_EXECUTION_ERROR;
}
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
g_free (xpostab);
g_free (ypostab);
}
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
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