1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*************************************************************************
* Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of Dimension. *
* *
* Dimension 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 3 of the License, or (at *
* your option) any later version. *
* *
* Dimension 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, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
#include "tokenize.h"
#include "parse.h"
#include "realize.h"
#include "progressbar.h"
#include "../libdimension/dimension.h"
#include <stdbool.h>
#include <stdlib.h>
#include <getopt.h>
static const char *output = NULL, *input = NULL;
static unsigned int width = 640, height = 480;
static int tokenize = 0, parse = 0;
int
main(int argc, char **argv) {
/*
* Parse the command-line options
*/
static struct option long_options[] = {
{ "output", required_argument, NULL, 'o' },
{ "input", required_argument, NULL, 'i' },
{ "width", required_argument, NULL, 'w' },
{ "height", required_argument, NULL, 'h' },
{ "tokenize", no_argument, &tokenize, 1 },
{ "parse", no_argument, &parse, 1 },
{ 0, 0, 0, 0 }
};
int opt, opt_index;
while (1) {
opt = getopt_long(argc, argv, "o:i:w:h:", long_options, &opt_index);
if (opt == -1)
break;
switch (opt) {
case 0:
/* Option set a flag - do nothing here */
break;
case 'o':
if (output) {
fprintf(stderr, "--output specified more than once!\n");
return EXIT_FAILURE;
} else {
output = optarg;
}
break;
case 'i':
if (input) {
fprintf(stderr, "--input specified more than once!\n");
return EXIT_FAILURE;
} else {
input = optarg;
}
break;
case 'w':
{
char *endptr;
width = strtoul(optarg, &endptr, 10);
if (*endptr != '\0' || endptr == optarg) {
fprintf(stderr, "Invalid argument to --width!\n");
return EXIT_FAILURE;
}
break;
}
case 'h':
{
char *endptr;
height = strtoul(optarg, &endptr, 10);
if (*endptr != '\0' || endptr == optarg) {
fprintf(stderr, "Invalid argument to --height!\n");
return EXIT_FAILURE;
}
break;
}
default:
fprintf(stderr, "Invalid command line option!\n");
return EXIT_FAILURE;
};
}
bool debugging = tokenize || parse;
if (optind == argc - 1) {
if (input) {
fprintf(stderr, "Multiple input files specified!\n");
return EXIT_FAILURE;
} else {
input = argv[optind];
}
} else if (optind < argc) {
fprintf(stderr, "Invalid extranious command line options!\n");
return EXIT_FAILURE;
}
if (!output && !debugging) {
fprintf(stderr, "No output file specified!\n");
return EXIT_FAILURE;
}
if (!input) {
fprintf(stderr, "No input file specified!\n");
return EXIT_FAILURE;
}
/*
* Now do the work
*/
/* Open the input file */
FILE *input_file = fopen(input, "r");
if (!input_file) {
fprintf(stderr, "Couldn't open input file!\n");
return EXIT_FAILURE;
}
/* Debugging option - output the list of tokens as an S-expression */
if (tokenize) {
dmnsn_array *tokens = dmnsn_tokenize(input_file, input);
if (!tokens) {
fclose(input_file);
fprintf(stderr, "Error tokenizing input file!\n");
return EXIT_FAILURE;
}
dmnsn_print_token_sexpr(stdout, tokens);
rewind(input_file);
dmnsn_delete_tokens(tokens);
if (!parse) {
fclose(input_file);
return EXIT_SUCCESS;
}
}
/* Debugging option - output the abstract syntax tree as an S-expression */
if (parse) {
dmnsn_array *astree = dmnsn_parse(input_file, input);
if (!astree) {
fprintf(stderr, "Error parsing input file!\n");
return EXIT_FAILURE;
}
dmnsn_print_astree_sexpr(stdout, astree);
dmnsn_delete_astree(astree);
fclose(input_file);
return EXIT_SUCCESS;
}
/* Realize the input */
printf("Parsing scene ...\n");
dmnsn_scene *scene = dmnsn_realize(input_file, input);
if (!scene) {
fprintf(stderr, "Error realizing input file!\n");
return EXIT_FAILURE;
}
/* Allocate a canvas */
scene->canvas = dmnsn_new_canvas(width, height);
if (!scene->canvas) {
dmnsn_delete_scene(scene);
fprintf(stderr, "Couldn't allocate canvas!\n");
return EXIT_FAILURE;
}
/*
* Now we render the scene
*/
/* Open the output file */
FILE *output_file = fopen(output, "wb");
if (!output_file) {
fprintf(stderr, "Couldn't open output file!");
return EXIT_FAILURE;
}
if (dmnsn_png_optimize_canvas(scene->canvas) != 0) {
fprintf(stderr, "WARNING: Couldn't optimize canvas for PNG\n");
}
dmnsn_progress *render_progress = dmnsn_raytrace_scene_async(scene);
if (!render_progress) {
dmnsn_delete_scene(scene);
fprintf(stderr, "Error starting render!\n");
return EXIT_FAILURE;
}
dmnsn_progressbar("Rendering scene ", render_progress);
if (dmnsn_finish_progress(render_progress) != 0) {
dmnsn_delete_scene(scene);
fprintf(stderr, "Error rendering scene!\n");
return EXIT_FAILURE;
}
dmnsn_progress *output_progress
= dmnsn_png_write_canvas_async(scene->canvas, output_file);
if (!output_progress) {
fclose(output_file);
dmnsn_delete_scene(scene);
fprintf(stderr, "Couldn't initialize PNG export!\n");
return EXIT_FAILURE;
}
dmnsn_progressbar("Writing PNG ", output_progress);
if (dmnsn_finish_progress(output_progress) != 0) {
fclose(output_file);
dmnsn_delete_scene(scene);
fprintf(stderr, "Couldn't write output!\n");
}
fclose(output_file);
dmnsn_delete_scene(scene);
return EXIT_SUCCESS;
}
|
