1 files changed, 106 insertions, 0 deletions

diff --git a/source/blender/nodes/texture/nodes/node_texture_hueSatVal.c b/source/blender/nodes/texture/nodes/node_texture_hueSatVal.c
new file mode 100644
index 00000000000..ebc2501cee3
--- /dev/null
+++ b/source/blender/nodes/texture/nodes/node_texture_hueSatVal.c
@@ -0,0 +1,106 @@
+/*
+ *
+ * ***** 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): Juho Vepsäläinen
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/nodes/texture/nodes/node_texture_hueSatVal.c
+ *  \ingroup texnodes
+ */
+
+
+#include "node_texture_util.h"
+#include "NOD_texture.h"
+
+
+static bNodeSocketTemplate inputs[]= {
+	{ SOCK_FLOAT, 1, "Hue",        0.0f, 0.0f, 0.0f, 0.0f, -0.5f, 0.5f, PROP_NONE },
+	{ SOCK_FLOAT, 1, "Saturation", 1.0f, 0.0f, 0.0f, 0.0f,  0.0f, 2.0f, PROP_FACTOR },
+	{ SOCK_FLOAT, 1, "Value",      1.0f, 0.0f, 0.0f, 0.0f,  0.0f, 2.0f, PROP_FACTOR },
+	{ SOCK_FLOAT, 1, "Factor",     1.0f, 0.0f, 0.0f, 0.0f,  0.0f, 1.0f, PROP_FACTOR },
+	{ SOCK_RGBA,  1, "Color",      0.8f, 0.8f, 0.8f, 1.0f },
+	{ -1, 0, "" }
+};
+static bNodeSocketTemplate outputs[]= {
+	{ SOCK_RGBA, 0, "Color" },
+	{ -1, 0, "" }
+};
+
+static void do_hue_sat_fac(bNode *UNUSED(node), float *out, float hue, float sat, float val, float *in, float fac)
+{
+	if(fac != 0 && (hue != 0.5f || sat != 1 || val != 1)) {
+		float col[3], hsv[3], mfac= 1.0f - fac;
+		
+		rgb_to_hsv(in[0], in[1], in[2], hsv, hsv+1, hsv+2);
+		hsv[0]+= (hue - 0.5f);
+		if(hsv[0]>1.0f) hsv[0]-=1.0f; else if(hsv[0]<0.0f) hsv[0]+= 1.0f;
+		hsv[1]*= sat;
+		if(hsv[1]>1.0f) hsv[1]= 1.0f; else if(hsv[1]<0.0f) hsv[1]= 0.0f;
+		hsv[2]*= val;
+		if(hsv[2]>1.0f) hsv[2]= 1.0f; else if(hsv[2]<0.0f) hsv[2]= 0.0f;
+		hsv_to_rgb(hsv[0], hsv[1], hsv[2], col, col+1, col+2);
+		
+		out[0]= mfac*in[0] + fac*col[0];
+		out[1]= mfac*in[1] + fac*col[1];
+		out[2]= mfac*in[2] + fac*col[2];
+	}
+	else {
+		QUATCOPY(out, in);
+	}
+}
+
+static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **in, short thread)
+{	
+	float hue = tex_input_value(in[0], p, thread);
+	float sat = tex_input_value(in[1], p, thread);
+	float val = tex_input_value(in[2], p, thread);
+	float fac = tex_input_value(in[3], p, thread);
+	
+	float col[4];
+	tex_input_rgba(col, in[4], p, thread);
+	
+	hue += 0.5f; /* [-.5, .5] -> [0, 1] */
+	
+	do_hue_sat_fac(node, out, hue, sat, val, col, fac);
+	
+	out[3] = col[3];
+}
+
+static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
+{
+	tex_output(node, in, out[0], &colorfn, data);
+}
+
+void register_node_type_tex_hue_sat(ListBase *lb)
+{
+	static bNodeType ntype;
+	
+	node_type_base(&ntype, TEX_NODE_HUE_SAT, "Hue Saturation Value", NODE_CLASS_OP_COLOR, NODE_OPTIONS);
+	node_type_socket_templates(&ntype, inputs, outputs);
+	node_type_size(&ntype, 150, 80, 250);
+	node_type_exec(&ntype, exec);
+	
+	nodeRegisterType(lb, &ntype);
+}