Mercurial > molko

annotate libmlk-adventure/adventure/state/panic.c @ 243:71b3b7036de7

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misc: lot of cleanups, - prefix libraries with libmlk, - move assets from source directories closes #2520, - prefix header guards closes #2519
author David Demelier <markand@malikania.fr>
date Sat, 28 Nov 2020 22:37:30 +0100
parents libadventure/adventure/state/panic.c@e71039d820a7
children 16be1ad3ddba
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1 /*
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2 * panic_state.c -- panic state
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20 #include <stdio.h>
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21 #include <stdlib.h>
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22 #include <string.h>
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23
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24 #include <core/alloc.h>
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25 #include <core/error.h>
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26 #include <core/event.h>
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27 #include <core/font.h>
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28 #include <core/game.h>
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29 #include <core/painter.h>
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30 #include <core/panic.h>
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31 #include <core/state.h>
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32 #include <core/sys.h>
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33 #include <core/texture.h>
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34 #include <core/window.h>
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35
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36 #include <ui/align.h>
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37 #include <ui/theme.h>
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38
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39 #include "panic.h"
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40
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41 #define BACKGROUND 0x4f5070ff
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42 #define FOREGROUND 0xffffffff
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43
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44 #define OUT "molko-adventure.txt"
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45
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46 struct view {
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47 struct {
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48 struct texture tex;
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49 int x;
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50 int y;
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51 } texts[4];
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52 };
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53
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54 static void
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55 die(const char *fmt, ...)
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56 {
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57 assert(fmt);
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58
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59 va_list ap;
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60
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61 va_start(ap, fmt);
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62 fprintf(stderr, "abort: ");
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63 vfprintf(stderr, fmt, ap);
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64 va_end(ap);
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65 abort();
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66 exit(1);
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67 }
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68
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69 static void
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70 stop(void)
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71 {
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72 die("%s", error());
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73 }
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74
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75 static void
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76 dump(void)
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77 {
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78 FILE *fp;
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79
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80 if ((fp = fopen(OUT, "w"))) {
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81 /* TODO: add more info here. */
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82 fprintf(fp, "Molko's Adventure crash dump report\n");
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83 fclose(fp);
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84 }
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85
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86 abort();
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87 }
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88
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89 static struct view *
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90 init(void)
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91 {
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92 struct theme *theme;
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93 struct view *view;
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94 struct font *font;
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95
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96 theme = theme_default();
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97 font = theme->fonts[THEME_FONT_INTERFACE];
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98 view = alloc_new0(sizeof (*view));
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99
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100 if (!font_render(font, &view->texts[0].tex, "An unrecoverable error occured and the game cannot continue.", FOREGROUND) ||
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101 !font_render(font, &view->texts[1].tex, "Please report the detailed error as provided below.", FOREGROUND) ||
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102 !font_render(font, &view->texts[2].tex, "Press <s> to save information and generate a core dump.", FOREGROUND) ||
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103 !font_render(font, &view->texts[3].tex, "Press <q> to quit without saving information.", FOREGROUND))
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104 die("%s", error());
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105
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106 /* All align x the same. */
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107 for (size_t i = 0; i < NELEM(view->texts); ++i)
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108 view->texts[i].x = theme->padding;
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109
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110 /* Header (0-1). */
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111 view->texts[0].y = theme->padding;
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112 view->texts[1].y = view->texts[0].y + view->texts[0].tex.h + theme->padding;
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113
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114 /* Footer. (2-3). */
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115 view->texts[3].y = window.h - view->texts[2].tex.h - theme->padding;
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116 view->texts[2].y = view->texts[3].y - view->texts[3].tex.h - theme->padding;
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117
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118 return view;
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119 }
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120
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121 static void
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122 handle_keydown(const struct event_key *ev)
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123 {
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124 assert(ev);
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125
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126 switch (ev->key) {
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127 case KEY_q:
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128 game_quit();
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129 break;
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130 case KEY_s:
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131 dump();
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132 break;
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133 default:
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134 break;
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135 }
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136 }
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137
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138 static void
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139 start(struct state *state)
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140 {
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141 (void)state;
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142
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143 /* We remove the panic handler to avoid infinite recursion. */
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144 panic_handler = stop;
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145 }
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146
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147 static void
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148 handle(struct state *state, const union event *ev)
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149 {
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150 assert(ev);
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151
162
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152 (void)state;
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153
91
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154 switch (ev->type) {
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155 case EVENT_KEYDOWN:
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156 handle_keydown(&ev->key);
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157 break;
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158 default:
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159 break;
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160 }
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161 }
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162
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163 static void
162
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164 draw(struct state *state)
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165 {
162
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166 struct theme *theme = theme_default();
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167 struct view *view = state->data;
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168 struct texture tex;
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169 struct font *font;
162
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170 int x, y;
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171
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172 painter_set_color(BACKGROUND);
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173 painter_clear();
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174
162
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175 for (size_t i = 0; i < NELEM(view->texts); ++i)
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176 texture_draw(&view->texts[i].tex, view->texts[i].x, view->texts[i].y);
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177
162
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178 /* The error is only available here. */
174
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179 font = theme->fonts[THEME_FONT_INTERFACE];
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180
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181 if (!font_render(font, &tex, error(), FOREGROUND))
162
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182 die("%s\n", error());
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183
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184 align(ALIGN_LEFT, &x, &y, tex.w, tex.h, 0, 0, window.w, window.h);
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185
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186 texture_draw(&tex, x + theme->padding, y);
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187 texture_finish(&tex);
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188 }
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189
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190 static void
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191 finish(struct state *state)
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192 {
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193 struct view *view = state->data;
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194
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195 if (!view)
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196 return;
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197
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198 for (size_t i = 0; i < NELEM(view->texts); ++i)
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199 texture_finish(&view->texts[i].tex);
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200
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201 free(view);
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202 memset(state, 0, sizeof (*state));
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203 }
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204
162
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205 void
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206 panic_state(struct state *state)
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207 {
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208 assert(state);
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209
162
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210 memset(state, 0, sizeof (*state));
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211 state->data = init();
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212 state->start = start;
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213 state->handle = handle;
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214 state->draw = draw;
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215 state->finish = finish;
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216 }