CMP_valToRgb.c

Go to the documentation of this file.

/*
 * $Id: CMP_valToRgb.c 36276 2011-04-21 15:53:30Z campbellbarton $
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2006 Blender Foundation.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "../CMP_util.h"


/* **************** VALTORGB ******************** */
static bNodeSocketType cmp_node_valtorgb_in[]= {
        {       SOCK_VALUE, 1, "Fac",                   0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
        {       -1, 0, ""       }
};
static bNodeSocketType cmp_node_valtorgb_out[]= {
        {       SOCK_RGBA, 0, "Image",                  0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
        {       SOCK_VALUE, 0, "Alpha",                 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
        {       -1, 0, ""       }
};

static void do_colorband_composit(bNode *node, float *out, float *in)
{
        do_colorband(node->storage, in[0], out);
}

static void node_composit_exec_valtorgb(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
        /* stack order in: fac */
        /* stack order out: col, alpha */
        
        if(out[0]->hasoutput==0 && out[1]->hasoutput==0) 
                return;
        
        if(node->storage) {
                /* input no image? then only color operation */
                if(in[0]->data==NULL) {
                        do_colorband(node->storage, in[0]->vec[0], out[0]->vec);
                }
                else {
                        /* make output size of input image */
                        CompBuf *cbuf= in[0]->data;
                        CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* allocs */
                        
                        composit1_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, do_colorband_composit, CB_VAL);
                        
                        out[0]->data= stackbuf;
                        
                        if(out[1]->hasoutput)
                                out[1]->data= valbuf_from_rgbabuf(stackbuf, CHAN_A);

                }
        }
}

static void node_composit_init_valtorgb(bNode* node)
{
        node->storage= add_colorband(1);
}

void register_node_type_cmp_valtorgb(ListBase *lb)
{
        static bNodeType ntype;

        node_type_base(&ntype, CMP_NODE_VALTORGB, "ColorRamp", NODE_CLASS_CONVERTOR, NODE_OPTIONS,
                cmp_node_valtorgb_in, cmp_node_valtorgb_out);
        node_type_size(&ntype, 240, 200, 300);
        node_type_init(&ntype, node_composit_init_valtorgb);
        node_type_storage(&ntype, "ColorBand", node_free_standard_storage, node_copy_standard_storage);
        node_type_exec(&ntype, node_composit_exec_valtorgb);

        nodeRegisterType(lb, &ntype);
}



/* **************** RGBTOBW ******************** */
static bNodeSocketType cmp_node_rgbtobw_in[]= {
        {       SOCK_RGBA, 1, "Image",                  0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
        {       -1, 0, ""       }
};
static bNodeSocketType cmp_node_rgbtobw_out[]= {
        {       SOCK_VALUE, 0, "Val",                   0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
        {       -1, 0, ""       }
};

static void do_rgbtobw(bNode *UNUSED(node), float *out, float *in)
{
        out[0]= in[0]*0.35f + in[1]*0.45f + in[2]*0.2f;
}

static void node_composit_exec_rgbtobw(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
        /* stack order out: bw */
        /* stack order in: col */
        
        if(out[0]->hasoutput==0)
                return;
        
        /* input no image? then only color operation */
        if(in[0]->data==NULL) {
                do_rgbtobw(node, out[0]->vec, in[0]->vec);
        }
        else {
                /* make output size of input image */
                CompBuf *cbuf= in[0]->data;
                CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_VAL, 1); /* allocs */
                
                composit1_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, do_rgbtobw, CB_RGBA);
                
                out[0]->data= stackbuf;
        }
}

void register_node_type_cmp_rgbtobw(ListBase *lb)
{
        static bNodeType ntype;
        
        node_type_base(&ntype, CMP_NODE_RGBTOBW, "RGB to BW", NODE_CLASS_CONVERTOR, 0,
                                   cmp_node_rgbtobw_in, cmp_node_rgbtobw_out);
        node_type_size(&ntype, 80, 40, 120);
        node_type_exec(&ntype, node_composit_exec_rgbtobw);
        
        nodeRegisterType(lb, &ntype);
}