diff options
Diffstat (limited to 'source/blender/nodes/composite/nodes/node_composite_huecorrect.c')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_huecorrect.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_huecorrect.c b/source/blender/nodes/composite/nodes/node_composite_huecorrect.c new file mode 100644 index 00000000000..edf26aed882 --- /dev/null +++ b/source/blender/nodes/composite/nodes/node_composite_huecorrect.c @@ -0,0 +1,170 @@ +/* + * $Id: CMP_huecorrect.c 36593 2011-05-10 11:19:26Z lukastoenne $ + * + * ***** 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): Matt Ebb + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/nodes/composite/nodes/node_composite_huecorrect.c + * \ingroup cmpnodes + */ + + +#include "node_composite_util.h" + +static bNodeSocketTemplate cmp_node_huecorrect_in[]= { + { SOCK_FLOAT, 1, "Fac", 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_FACTOR}, + { SOCK_RGBA, 1, "Image", 0.0f, 0.0f, 0.0f, 1.0f}, + { -1, 0, "" } +}; + +static bNodeSocketTemplate cmp_node_huecorrect_out[]= { + { SOCK_RGBA, 0, "Image"}, + { -1, 0, "" } +}; + +static void do_huecorrect(bNode *node, float *out, float *in) +{ + float hsv[3], f; + + rgb_to_hsv(in[0], in[1], in[2], hsv, hsv+1, hsv+2); + + /* adjust hue, scaling returned default 0.5 up to 1 */ + f = curvemapping_evaluateF(node->storage, 0, hsv[0]); + hsv[0] += f-0.5f; + + /* adjust saturation, scaling returned default 0.5 up to 1 */ + f = curvemapping_evaluateF(node->storage, 1, hsv[0]); + hsv[1] *= (f * 2.f); + + /* adjust value, scaling returned default 0.5 up to 1 */ + f = curvemapping_evaluateF(node->storage, 2, hsv[0]); + hsv[2] *= (f * 2.f); + + hsv[0] = hsv[0] - floor(hsv[0]); /* mod 1.0 */ + CLAMP(hsv[1], 0.f, 1.f); + + /* convert back to rgb */ + hsv_to_rgb(hsv[0], hsv[1], hsv[2], out, out+1, out+2); + + out[3]= in[3]; +} + +static void do_huecorrect_fac(bNode *node, float *out, float *in, float *fac) +{ + float hsv[3], rgb[3], f; + const float mfac = 1.f-*fac; + + rgb_to_hsv(in[0], in[1], in[2], hsv, hsv+1, hsv+2); + + /* adjust hue, scaling returned default 0.5 up to 1 */ + f = curvemapping_evaluateF(node->storage, 0, hsv[0]); + hsv[0] += f-0.5f; + + /* adjust saturation, scaling returned default 0.5 up to 1 */ + f = curvemapping_evaluateF(node->storage, 1, hsv[0]); + hsv[1] *= (f * 2.f); + + /* adjust value, scaling returned default 0.5 up to 1 */ + f = curvemapping_evaluateF(node->storage, 2, hsv[0]); + hsv[2] *= (f * 2.f); + + hsv[0] = hsv[0] - floor(hsv[0]); /* mod 1.0 */ + CLAMP(hsv[1], 0.f, 1.f); + + /* convert back to rgb */ + hsv_to_rgb(hsv[0], hsv[1], hsv[2], rgb, rgb+1, rgb+2); + + out[0]= mfac*in[0] + *fac*rgb[0]; + out[1]= mfac*in[1] + *fac*rgb[1]; + out[2]= mfac*in[2] + *fac*rgb[2]; + out[3]= in[3]; +} + +static void node_composit_exec_huecorrect(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out) +{ + CompBuf *cbuf= in[1]->data; + CompBuf *stackbuf; + + /* stack order input: fac, image, black level, white level */ + /* stack order output: image */ + + if(out[0]->hasoutput==0) + return; + + if(in[0]->vec[0] == 0.f && in[0]->data == NULL) { + out[0]->data = pass_on_compbuf(cbuf); + return; + } + + /* input no image? then only color operation */ + if(in[1]->data==NULL) { + do_huecorrect_fac(node, out[0]->vec, in[1]->vec, in[0]->vec); + } + + if (cbuf) { + stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* make output size of input image */ + + if ((in[0]->data==NULL) && (in[0]->vec[0] >= 1.f)) + composit1_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, do_huecorrect, CB_RGBA); + else + composit2_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, in[0]->data, in[0]->vec, do_huecorrect_fac, CB_RGBA, CB_VAL); + + out[0]->data= stackbuf; + } + +} + +static void node_composit_init_huecorrect(bNodeTree *UNUSED(ntree), bNode* node, bNodeTemplate *UNUSED(ntemp)) +{ + CurveMapping *cumapping = node->storage= curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f); + int c; + + cumapping->preset = CURVE_PRESET_MID9; + + for (c=0; c<3; c++) { + CurveMap *cuma = &cumapping->cm[c]; + curvemap_reset(cuma, &cumapping->clipr, cumapping->preset, CURVEMAP_SLOPE_POSITIVE); + } + + /* default to showing Saturation */ + cumapping->cur = 1; +} + +void register_node_type_cmp_huecorrect(ListBase *lb) +{ + static bNodeType ntype; + + node_type_base(&ntype, CMP_NODE_HUECORRECT, "Hue Correct", NODE_CLASS_OP_COLOR, NODE_OPTIONS); + node_type_socket_templates(&ntype, cmp_node_huecorrect_in, cmp_node_huecorrect_out); + node_type_size(&ntype, 320, 140, 400); + node_type_init(&ntype, node_composit_init_huecorrect); + node_type_storage(&ntype, "CurveMapping", node_free_curves, node_copy_curves); + node_type_exec(&ntype, node_composit_exec_huecorrect); + + nodeRegisterType(lb, &ntype); +} + + |