1 | /*
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2 | * Copyright (C) 2017 The Contributors
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3 | *
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4 | * This program is free software: you can redistribute it and/or modify
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5 | * it under the terms of the GNU General Public License as published by
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6 | * the Free Software Foundation, either version 3 of the License, or (at
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7 | * your option) any later version.
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8 | *
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9 | * This program is distributed in the hope that it will be useful, but
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10 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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12 | * General Public License for more details.
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13 | *
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14 | * A copy of the GNU General Public License can be found in the file
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15 | * "gpl.txt" in the top directory of this repository.
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16 | */
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17 |
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18 | #include <all.h>
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19 |
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20 | int32_t sdl_verbose = 0;
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21 |
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22 | #define ver(...) _ver(sdl_verbose, 0, __VA_ARGS__)
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23 | #define ver2(...) _ver(sdl_verbose, 1, __VA_ARGS__)
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24 | #define ver3(...) _ver(sdl_verbose, 2, __VA_ARGS__)
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25 |
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26 | typedef void (*sdl_func_t)(void);
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27 |
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28 | static sdl_func_t sdl_funcs[] = {
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29 | lcd_sdl, ser_sdl, vid_sdl
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30 | };
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31 |
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32 | void sdl_init(void)
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33 | {
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34 | if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS | SDL_INIT_TIMER) < 0) {
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35 | fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
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36 | exit(1);
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37 | }
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38 |
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39 | SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_VERBOSE);
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40 |
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41 | if (SDLNet_Init() < 0) {
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42 | fail("SDLNet_Init() failed: %s", SDLNet_GetError());
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43 | }
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44 |
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45 | if (TTF_Init() < 0) {
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46 | fail("TTF_Init() failed: %s", TTF_GetError());
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47 | }
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48 |
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49 | SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
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50 | SDL_StartTextInput();
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51 | }
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52 |
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53 | void sdl_quit(void)
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54 | {
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55 | TTF_Quit();
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56 | SDLNet_Quit();
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57 | SDL_Quit();
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58 | }
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59 |
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60 | void sdl_loop(void)
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61 | {
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62 | inf("entering SDL loop");
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63 |
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64 | #if defined EMU_LINUX
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65 | SDL_Scancode down = SDL_SCANCODE_UNKNOWN;
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66 | #endif
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67 |
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68 | bool rel_mod = false;
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69 | uint32_t win = 0;
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70 |
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71 | while (SDL_AtomicGet(&run) != 0) {
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72 | for (int32_t i = 0; i < ARRAY_COUNT(sdl_funcs); ++i) {
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73 | sdl_funcs[i]();
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74 | }
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75 |
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76 | SDL_Event ev;
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77 |
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78 | while (SDL_PollEvent(&ev) > 0) {
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79 | ver2("sdl ev %d", ev.type);
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80 |
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81 | #if defined EMU_LINUX
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82 | // Work around duplicate key-down events on Linux.
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83 |
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84 | if (ev.type == SDL_KEYDOWN) {
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85 | if (down == ev.key.keysym.scancode) {
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86 | ver2("sdl dedup: skip %d", (int32_t)down);
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87 | continue;
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88 | }
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89 |
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90 | down = ev.key.keysym.scancode;
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91 | ver2("sdl dedup: %d", (int32_t)down);
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92 | }
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93 | else if (ev.type == SDL_KEYUP) {
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94 | down = SDL_SCANCODE_UNKNOWN;
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95 | ver2("sdl dedup: reset");
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96 | }
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97 | #endif
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98 |
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99 | if (ev.type == SDL_QUIT ||
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100 | (ev.type == SDL_KEYDOWN && ev.key.keysym.sym == SDLK_ESCAPE)) {
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101 | inf("quit event");
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102 | SDL_AtomicSet(&run, 0);
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103 | continue;
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104 | }
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105 |
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106 | if (ev.type == SDL_WINDOWEVENT) {
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107 | if (ev.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
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108 | ver("sdl ev win %u", ev.window.windowID);
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109 | win = ev.window.windowID;
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110 | }
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111 | }
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112 |
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113 | if (ev.type == SDL_KEYDOWN && ev.key.keysym.sym == SDLK_DOWN) {
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114 | ver("sdl ev down-arrow");
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115 | rel_mod = true;
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116 | ser_mou_res();
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117 | continue;
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118 | }
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119 |
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120 | if (ev.type == SDL_KEYDOWN && ev.key.keysym.sym == SDLK_UP) {
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121 | ver("sdl ev up-arrow");
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122 | rel_mod = false;
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123 | continue;
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124 | }
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125 |
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126 | if (rel_mod) {
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127 | if (ev.type == SDL_MOUSEMOTION) {
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128 | ver("sdl ev mousemotion (%d, %d)", ev.motion.xrel, ev.motion.yrel);
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129 | ser_mou_mov(&ev.motion);
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130 | continue;
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131 | }
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132 |
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133 | if (ev.type == SDL_MOUSEBUTTONDOWN) {
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134 | ver("sdl ev mousebuttondown %d", ev.button.button);
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135 | ser_mou_dn(&ev.button);
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136 | continue;
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137 | }
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138 |
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139 | if (ev.type == SDL_MOUSEBUTTONUP) {
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140 | ver("sdl ev mousebuttonup %d", ev.button.button);
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141 | ser_mou_up(&ev.button);
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142 | continue;
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143 | }
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144 | }
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145 |
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146 | if (ev.type == SDL_TEXTINPUT) {
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147 | ver("sdl ev text input %d", ev.text.text[0]);
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148 |
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149 | if (win == ser_win) {
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150 | ser_text(&ev.text);
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151 | }
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152 |
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153 | continue;
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154 | }
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155 |
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156 | if (ev.type == SDL_KEYDOWN) {
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157 | ver("sdl ev key down %d", (int32_t)ev.key.keysym.sym);
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158 |
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159 | if (win == ser_win) {
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160 | ser_key(&ev.key);
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161 | }
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162 | else if (win == vid_win) {
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163 | kbd_key(&ev.key, true, true);
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164 | }
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165 | else if (win == lcd_win) {
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166 | kbd_key(&ev.key, false, true);
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167 | }
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168 |
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169 | continue;
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170 | }
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171 |
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172 | if (ev.type == SDL_KEYUP) {
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173 | ver("sdl ev key up %d", (int32_t)ev.key.keysym.sym);
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174 |
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175 | if (win == vid_win) {
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176 | kbd_key(&ev.key, true, false);
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177 | }
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178 | else if (win == lcd_win) {
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179 | kbd_key(&ev.key, false, false);
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180 | }
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181 |
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182 | continue;
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183 | }
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184 | }
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185 |
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186 | SDL_Delay(50);
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187 |
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188 | if (SDL_GetRelativeMouseMode() != rel_mod) {
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189 | SDL_SetRelativeMouseMode(rel_mod);
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190 |
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191 | if (rel_mod) {
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192 | inf("MOUSE CAPTURED - press UP-ARROW KEY to release");
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193 | }
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194 | else {
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195 | inf("mouse released");
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196 | }
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197 | }
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198 | }
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199 |
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200 | inf("leaving SDL loop");
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201 | }
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