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1 /* Gerris - The GNU Flow Solver (-*-C-*-)
2 * Copyright (C) 2010 National Institute of Water and Atmospheric Research
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
17 * 02111-1307, USA.
18 */
19
20 #include <errno.h>
21 #include <string.h>
22 #include <gerris/output.h>
23
24 #include "render.h"
25
26 /* GfsOutputView: Header */
27
28 typedef struct _GfsOutputView GfsOutputView;
29
30 struct _GfsOutputView {
31 /*< private >*/
32 GfsOutput parent;
33
34 /*< public >*/
35 GfsGlViewParams view;
36 GfsGl2PSParams p;
37 GList * list;
38 gchar * fname;
39 };
40
41 #define GFS_OUTPUT_VIEW(obj) GTS_OBJECT_CAST (obj,\
42 GfsOutputView,\
43 gfs_output_view_class ())
44 #define GFS_IS_OUTPUT_VIEW(obj) (gts_object_is_from_class (obj,\
45 gfs_output_view_class ()))
46
47 GfsEventClass * gfs_output_view_class (void);
48
49 /* GfsOutputView: Object */
50
51 static void gfs_output_view_read (GtsObject ** o, GtsFile * fp)
52 {
53 (* GTS_OBJECT_CLASS (gfs_output_view_class ())->parent_class->read) (o, fp);
54 if (fp->type == GTS_ERROR)
55 return;
56
57 if (fp->type == '{') {
58 gfs_gl2ps_params_read (&GFS_OUTPUT_VIEW (*o)->p, fp);
59 if (fp->type == GTS_ERROR)
60 return;
61 }
62
63 if (fp->type != GTS_STRING) {
64 gts_file_error (fp, "expecting a string (GfsView parameter file)");
65 return;
66 }
67 FILE * f = fopen (fp->token->str, "r");
68 if (f == NULL) {
69 gts_file_error (fp, "could not open file '%s'\n%s", fp->token->str, strerror (errno));
70 return;
71 }
72 GfsOutputView * output = GFS_OUTPUT_VIEW (*o);
73 GtsFile * fp1 = gts_file_new (f);
74 gfs_gl_view_params_read (&output->view, fp1);
75 while (fp1->type == '\n')
76 gts_file_next_token (fp1);
77 while (fp1->type == GTS_STRING) {
78 GfsGl * gl;
79 if ((gl = gfs_gl_new_from_file (fp1))) {
80 gl->p = &output->view;
81 output->list = g_list_append (output->list, gl);
82 }
83 else if (fp1->type != GTS_ERROR) {
84 gts_file_error (fp1, "unknown keyword `%s'", fp1->token->str);
85 break;
86 }
87 while (fp1->type == '\n')
88 gts_file_next_token (fp1);
89 }
90 if (fp1->type == GTS_ERROR) {
91 gts_file_error (fp, "not a valid GfsView file\n%s:%d:%d: %s",
92 fp->token->str, fp1->line, fp1->pos, fp1->error);
93 gts_file_destroy (fp1);
94 fclose (f);
95 }
96 else {
97 gts_file_destroy (fp1);
98 fclose (f);
99 g_free (output->fname);
100 output->fname = g_strdup (fp->token->str);
101 gts_file_next_token (fp);
102 }
103 }
104
105 static void gfs_output_view_write (GtsObject * o, FILE * fp)
106 {
107 (* GTS_OBJECT_CLASS (gfs_output_view_class ())->parent_class->write) (o, fp);
108
109 gfs_gl2ps_params_write (&GFS_OUTPUT_VIEW (o)->p, fp);
110 fprintf (fp, " %s", GFS_OUTPUT_VIEW (o)->fname);
111 }
112
113 static void gfs_output_view_destroy (GtsObject * object)
114 {
115 GfsOutputView * output = GFS_OUTPUT_VIEW (object);
116 g_list_foreach (output->list, (GFunc) gts_object_destroy, NULL);
117 g_list_free (output->list);
118 g_free (output->fname);
119
120 (* GTS_OBJECT_CLASS (gfs_output_view_class ())->parent_class->destroy) (object);
121 }
122
123 static gboolean gfs_output_view_event (GfsEvent * event, GfsSimulation * sim)
124 {
125 if ((* GFS_EVENT_CLASS (gfs_output_class())->event) (event, sim)) {
126 GfsOutputView * output = GFS_OUTPUT_VIEW (event);
127 g_list_foreach (output->list, (GFunc) gfs_gl_set_simulation, sim);
128 gfs_gl_osmesa_render (&output->p, sim, &output->view, output->list,
129 GFS_OUTPUT (event)->file->fp,
130 !GFS_OUTPUT (event)->parallel);
131 return TRUE;
132 }
133 return FALSE;
134 }
135
136 static void gfs_output_view_class_init (GtsObjectClass * klass)
137 {
138 klass->read = gfs_output_view_read;
139 klass->write = gfs_output_view_write;
140 klass->destroy = gfs_output_view_destroy;
141 GFS_EVENT_CLASS (klass)->event = gfs_output_view_event;
142 }
143
144 static void gfs_output_view_init (GfsOutputView * object)
145 {
146 gfs_gl2ps_params_init (&object->p);
147 gfs_gl_view_params_init (&object->view);
148 }
149
150 GfsEventClass * gfs_output_view_class (void)
151 {
152 static GfsEventClass * klass = NULL;
153
154 if (klass == NULL) {
155 GtsObjectClassInfo gfs_output_view_info = {
156 "GfsOutputView",
157 sizeof (GfsOutputView),
158 sizeof (GfsEventClass),
159 (GtsObjectClassInitFunc) gfs_output_view_class_init,
160 (GtsObjectInitFunc) gfs_output_view_init,
161 (GtsArgSetFunc) NULL,
162 (GtsArgGetFunc) NULL
163 };
164 klass = gts_object_class_new (GTS_OBJECT_CLASS (gfs_output_class ()),
165 &gfs_output_view_info);
166 }
167
168 return klass;
169 }
170
171 /* Initialize module */
172 const gchar gfs_module_name[] = "gfsview";
173 const gchar * g_module_check_init (void);
174
175 const gchar * g_module_check_init (void)
176 {
177 gfs_gl_init ();
178 gfs_output_view_class ();
179 return NULL;
180 }