1 files changed, 130 insertions, 0 deletions

diff --git a/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_dxf/imp_dxf_color.c b/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_dxf/imp_dxf_color.c
new file mode 100644
index 0000000..6ffdf87
--- /dev/null
+++ b/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_dxf/imp_dxf_color.c
@@ -0,0 +1,130 @@
+/* $Id:$ */
+
+/*
+    libg3d - 3D object loading library
+
+    Copyright (C) 2005-2009  Markus Dahms <mad@automagically.de>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include <string.h>
+
+#include <g3d/types.h>
+#include <g3d/material.h>
+
+static G3DMaterial *get_material(G3DModel *model, const gchar *cname)
+{
+        G3DMaterial *material;
+        GSList *item;
+
+        for(item = model->materials; item != NULL; item = item->next) {
+                material = item->data;
+                if(strcmp(material->name, cname) == 0)
+                        return material;
+        }
+        return NULL;
+}
+
+#define DXF_COL_SET(rx, gx, bx) \
+        material->r = ((G3DFloat)(rx) / 255.0); \
+        material->g = ((G3DFloat)(gx) / 255.0); \
+        material->b = ((G3DFloat)(bx) / 255.0);
+
+/*
+ * based on GPL code from
+ * http://wiki.inkscape.org/wiki/index.php/SOC_Accepted_Proposals
+ */
+static gboolean set_aci(G3DMaterial *material, gint32 aci)
+{
+        G3DFloat r, g, b, h, s, l, m;
+        gint32 mod10;
+
+        if((aci < 10) || (aci > 249)) {
+                switch(aci) {
+                        case 0:   DXF_COL_SET(0x00, 0x00, 0x00); break;
+                        case 1:   DXF_COL_SET(0xFF, 0x00, 0x00); break;
+                        case 2:   DXF_COL_SET(0xFF, 0xFF, 0x00); break;
+                        case 3:   DXF_COL_SET(0x00, 0xFF, 0x00); break;
+                        case 4:   DXF_COL_SET(0x00, 0xFF, 0xFF); break;
+                        case 5:   DXF_COL_SET(0x00, 0x00, 0xFF); break;
+                        case 6:   DXF_COL_SET(0xFF, 0x00, 0xFF); break;
+                        case 7:   DXF_COL_SET(0xFF, 0xFF, 0xFF); break;
+                        case 8:   DXF_COL_SET(0x80, 0x80, 0x80); break;
+                        case 9:   DXF_COL_SET(0xC0, 0xC0, 0xC0); break;
+
+                        case 250: DXF_COL_SET(0x33, 0x33, 0x33); break;
+                        case 251: DXF_COL_SET(0x5B, 0x5B, 0x5B); break;
+                        case 252: DXF_COL_SET(0x84, 0x84, 0x84); break;
+                        case 253: DXF_COL_SET(0xAD, 0xAD, 0xAD); break;
+                        case 254: DXF_COL_SET(0xD6, 0xD6, 0xD6); break;
+                        case 255: DXF_COL_SET(0xFF, 0xFF, 0xFF); break;
+                        default: break;
+                }
+        } else {
+                mod10 = aci % 10;
+                h = 1.5 * (aci - mod10 - 10);
+                s = ((aci % 2) ? 0.5 : 1.0);
+                if(mod10 < 2) l = 1.0;
+                else if(mod10 < 4) l = 0.8;
+                else if(mod10 < 6) l = 0.6;
+                else if(mod10 < 8) l = 0.5;
+                else l = 0.3;
+
+                if(h <= 120) {
+                        r = (120 - h) / 60;
+                        g = h / 60;
+                        b = 0;
+                } else if(h <= 240) {
+                        r = 0;
+                        g = (240 - h) / 60;
+                        b = (h - 120) / 60;
+                } else if(h <= 360) {
+                        r = (h - 240) / 60;
+                        g = 0;
+                        b = (360 - h) / 60;
+                }
+                r = MIN(r, 1.0);
+                g = MIN(g, 1.0);
+                b = MIN(b, 1.0);
+                m = MAX(r, MAX(g, b));
+                material->r = (m - s * (m - r)) * l;
+                material->g = (m - s * (m - g)) * l;
+                material->b = (m - s * (m - b)) * l;
+        }
+        return TRUE;
+}
+
+G3DMaterial *dxf_color_get_material(G3DModel *model, gint32 aci)
+{
+        gchar *cname;
+        G3DMaterial *material;
+
+        cname = g_strdup_printf("color #%d", ABS(aci));
+        material = get_material(model, cname);
+        if(material != NULL) {
+                g_free(cname);
+                return material;
+        }
+        material = g3d_material_new();
+        material->name = cname;
+        model->materials = g_slist_append(model->materials, material);
+        set_aci(material, ABS(aci));
+#if DEBUG > 0
+        g_debug("| color: %.2f %.2f %.2f", material->r, material->g, material->b);
+#endif
+
+        return material;
+}
+