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annotate nuklear_ui/blastem_nuklear.c @ 1491:e890971f3757 nuklear_ui

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Somewhat fleshed out video settings view
author Michael Pavone <pavone@retrodev.com>
date Fri, 01 Dec 2017 09:22:43 -0800
parents 919c0c33885e
children bdeb2a1d0385
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #define NK_IMPLEMENTATION
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2 #define NK_SDL_GLES2_IMPLEMENTATION
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3
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4 #include <stdlib.h>
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5 #include "blastem_nuklear.h"
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6 #include "font.h"
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7 #include "../render.h"
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8 #include "../render_sdl.h"
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9 #include "../util.h"
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10 #include "../paths.h"
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11 #include "../saves.h"
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12 #include "../blastem.h"
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13 #include "../config.h"
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14
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15 static struct nk_context *context;
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16
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17 typedef void (*view_fun)(struct nk_context *);
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18 static view_fun current_view;
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19 static view_fun *previous_views;
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20 static uint32_t view_storage;
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21 static uint32_t num_prev;
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22
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23 static void push_view(view_fun new_view)
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24 {
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25 if (num_prev == view_storage) {
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26 view_storage = view_storage ? 2*view_storage : 2;
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27 previous_views = realloc(previous_views, view_storage*sizeof(view_fun));
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28 }
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29 previous_views[num_prev++] = current_view;
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30 current_view = new_view;
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31 }
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32
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33 static void pop_view()
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34 {
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35 if (num_prev) {
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36 current_view = previous_views[--num_prev];
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37 }
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38 }
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39
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40 static void clear_view_stack()
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41 {
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42 num_prev = 0;
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43 }
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44
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45 void view_play(struct nk_context *context)
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46 {
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47
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48 }
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49
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50 void view_file_browser(struct nk_context *context, uint8_t normal_open)
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51 {
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52 static char *current_path;
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53 static dir_entry *entries;
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54 static size_t num_entries;
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55 static uint32_t selected_entry;
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56 static char **ext_list;
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57 static uint32_t num_exts;
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58 static uint8_t got_ext_list;
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59 if (!current_path) {
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60 get_initial_browse_path(&current_path);
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61 }
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62 if (!entries) {
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63 entries = get_dir_list(current_path, &num_entries);
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64 if (entries) {
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65 sort_dir_list(entries, num_entries);
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66 }
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67 }
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68 if (!got_ext_list) {
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69 ext_list = get_extension_list(config, &num_exts);
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70 got_ext_list = 1;
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71 }
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72 uint32_t width = render_width();
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73 uint32_t height = render_height();
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74 if (nk_begin(context, "Load ROM", nk_rect(0, 0, width, height), 0)) {
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75 nk_layout_row_static(context, height - 100, width - 60, 1);
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76 if (nk_group_begin(context, "Select ROM", NK_WINDOW_BORDER | NK_WINDOW_TITLE)) {
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77 nk_layout_row_static(context, 28, width-100, 1);
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78 for (uint32_t i = 0; i < num_entries; i++)
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79 {
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80 if (entries[i].name[0] == '.' && entries[i].name[1] != '.') {
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81 continue;
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82 }
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83 if (num_exts && !entries[i].is_dir && !path_matches_extensions(entries[i].name, ext_list, num_exts)) {
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84 continue;
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85 }
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86 int selected = i == selected_entry;
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87 nk_selectable_label(context, entries[i].name, NK_TEXT_ALIGN_LEFT, &selected);
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88 if (selected) {
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89 selected_entry = i;
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90 }
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91 }
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92 nk_group_end(context);
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93 }
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94 nk_layout_row_static(context, 52, width > 600 ? 300 : width / 2, 2);
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95 if (nk_button_label(context, "Back")) {
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96 pop_view();
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97 }
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98 if (nk_button_label(context, "Open")) {
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99 char *full_path = path_append(current_path, entries[selected_entry].name);
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100 if (entries[selected_entry].is_dir) {
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101 free(current_path);
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102 current_path = full_path;
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103 free_dir_list(entries, num_entries);
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104 entries = NULL;
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105 } else {
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106 if(normal_open) {
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107 if (current_system) {
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108 current_system->next_rom = full_path;
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109 current_system->request_exit(current_system);
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110 } else {
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111 init_system_with_media(full_path, SYSTEM_UNKNOWN);
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112 free(full_path);
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113 }
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114 } else {
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115 lockon_media(full_path);
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116 free(full_path);
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117 }
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118 clear_view_stack();
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119 current_view = view_play;
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120 }
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121 }
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122 nk_end(context);
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123 }
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124 }
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125
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126 void view_load(struct nk_context *context)
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127 {
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128 view_file_browser(context, 1);
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129 }
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130
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131 void view_lock_on(struct nk_context *context)
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132 {
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133 view_file_browser(context, 0);
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134 }
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135
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136 void view_about(struct nk_context *context)
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137 {
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138 }
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139
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140 typedef struct {
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141 const char *title;
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142 view_fun next_view;
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143 } menu_item;
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144
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145 static save_slot_info *slots;
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146 static uint32_t num_slots, selected_slot;
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147
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148 void view_choose_state(struct nk_context *context, uint8_t is_load)
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149 {
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150 uint32_t width = render_width();
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151 uint32_t height = render_height();
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152 if (nk_begin(context, "Slot Picker", nk_rect(0, 0, width, height), 0)) {
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153 nk_layout_row_static(context, height - 100, width - 60, 1);
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154 if (nk_group_begin(context, "Select Save Slot", NK_WINDOW_BORDER | NK_WINDOW_TITLE)) {
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155 nk_layout_row_static(context, 28, width-100, 1);
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156 if (!slots) {
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157 slots = get_slot_info(current_system, &num_slots);
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158 }
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159 for (uint32_t i = 0; i < num_slots; i++)
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160 {
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161 int selected = i == selected_slot;
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162 nk_selectable_label(context, slots[i].desc, NK_TEXT_ALIGN_LEFT, &selected);
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163 if (selected && (slots[i].modification_time || !is_load)) {
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164 selected_slot = i;
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165 }
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166 }
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167 nk_group_end(context);
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168 }
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169 nk_layout_row_static(context, 52, width > 600 ? 300 : width / 2, 2);
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170 if (nk_button_label(context, "Back")) {
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171 pop_view();
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172 }
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173 if (is_load) {
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174 if (nk_button_label(context, "Load")) {
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175 current_system->load_state(current_system, selected_slot);
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176 current_view = view_play;
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177 }
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178 } else {
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179 if (nk_button_label(context, "Save")) {
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180 current_system->save_state = selected_slot + 1;
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181 current_view = view_play;
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182 }
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183 }
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184 nk_end(context);
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185 }
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186 }
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187
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188 void view_save_state(struct nk_context *context)
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189 {
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190 view_choose_state(context, 0);
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191 }
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192
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193 void view_load_state(struct nk_context *context)
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194 {
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195 view_choose_state(context, 1);
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196 }
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197
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198 static void menu(struct nk_context *context, uint32_t num_entries, const menu_item *items)
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199 {
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200 const uint32_t button_height = 52;
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201 const uint32_t ideal_button_width = 300;
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202 const uint32_t button_space = 6;
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203
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204 uint32_t width = render_width();
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205 uint32_t height = render_height();
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206 uint32_t top = height/2 - (button_height * num_entries)/2;
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207 uint32_t button_width = width > ideal_button_width ? ideal_button_width : width;
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208 uint32_t left = width/2 - button_width/2;
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209
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210 nk_layout_space_begin(context, NK_STATIC, top + button_height * num_entries, num_entries);
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211 for (uint32_t i = 0; i < num_entries; i++)
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212 {
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213 nk_layout_space_push(context, nk_rect(left, top + i * button_height, button_width, button_height-button_space));
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214 if (nk_button_label(context, items[i].title)) {
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215 push_view(items[i].next_view);
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216 if (!current_view) {
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217 exit(0);
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218 }
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diff changeset
219 if (current_view == view_save_state || current_view == view_load_state) {
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diff changeset
220 free_slot_info(slots);
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221 slots = NULL;
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222 }
1474
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223 }
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224 }
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225 nk_layout_space_end(context);
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226 }
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227
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228 void view_key_bindings(struct nk_context *context)
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229 {
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230
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231 }
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232 void view_controllers(struct nk_context *context)
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233 {
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234
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235 }
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236
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diff changeset
237 void settings_toggle(struct nk_context *context, char *label, char *path, uint8_t def)
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238 {
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diff changeset
239 uint8_t curval = !strcmp("on", tern_find_path_default(config, path, (tern_val){.ptrval = def ? "on": "off"}, TVAL_PTR).ptrval);
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240 nk_label(context, label, NK_TEXT_LEFT);
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241 uint8_t newval = nk_check_label(context, "", curval);
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diff changeset
242 if (newval != curval) {
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diff changeset
243 config = tern_insert_path(config, path, (tern_val){.ptrval = strdup(newval ? "on" : "off")}, TVAL_PTR);
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244 }
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245 }
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diff changeset
246
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247 void settings_int_input(struct nk_context *context, char *label, char *path, char *def)
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248 {
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diff changeset
249 char buffer[12];
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250 nk_label(context, label, NK_TEXT_LEFT);
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251 uint32_t curval;
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252 char *curstr = tern_find_path_default(config, path, (tern_val){.ptrval = def}, TVAL_PTR).ptrval;
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253 uint32_t len = strlen(curstr);
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diff changeset
254 if (len > 11) {
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diff changeset
255 len = 11;
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256 }
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diff changeset
257 memcpy(buffer, curstr, len);
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258 nk_edit_string(context, NK_EDIT_SIMPLE, buffer, &len, sizeof(buffer)-1, nk_filter_decimal);
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diff changeset
259 buffer[len] = 0;
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diff changeset
260 if (strcmp(buffer, curstr)) {
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diff changeset
261 config = tern_insert_path(config, path, (tern_val){.ptrval = strdup(buffer)}, TVAL_PTR);
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262 }
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263 }
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diff changeset
264
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diff changeset
265 void settings_int_property(struct nk_context *context, char *label, char *name, char *path, int def, int min, int max)
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266 {
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diff changeset
267 char *curstr = tern_find_path(config, path, TVAL_PTR).ptrval;
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diff changeset
268 int curval = curstr ? atoi(curstr) : def;
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diff changeset
269 nk_label(context, label, NK_TEXT_LEFT);
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diff changeset
270 int val = curval;
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diff changeset
271 nk_property_int(context, name, min, &val, max, 1, 1.0f);
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diff changeset
272 if (val != curval) {
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diff changeset
273 char buffer[12];
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diff changeset
274 sprintf(buffer, "%d", val);
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diff changeset
275 config = tern_insert_path(config, path, (tern_val){.ptrval = strdup(buffer)}, TVAL_PTR);
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diff changeset
276 }
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277 }
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diff changeset
278
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diff changeset
279 void view_video_settings(struct nk_context *context)
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280 {
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diff changeset
281 uint32_t width = render_width();
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diff changeset
282 uint32_t height = render_height();
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diff changeset
283 if (nk_begin(context, "Video Settings", nk_rect(0, 0, width, height), 0)) {
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diff changeset
284 nk_layout_row_static(context, 30, width > 300 ? 300 : width, 2);
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diff changeset
285 settings_toggle(context, "Fullscreen", "video\0fullscreen\0", 0);
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diff changeset
286 settings_toggle(context, "Open GL", "video\0gl\0", 1);
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diff changeset
287 settings_toggle(context, "Scanlines", "video\0scanlines\0", 0);
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diff changeset
288 settings_int_input(context, "Windowed Width", "video\0width\0", "640");
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diff changeset
289 settings_int_property(context, "NTSC Overscan", "Top", "video\0ntsc\0overscan\0top\0", 2, 0, 32);
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diff changeset
290 settings_int_property(context, "", "Bottom", "video\0ntsc\0overscan\0bottom\0", 17, 0, 32);
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diff changeset
291 settings_int_property(context, "", "Left", "video\0ntsc\0overscan\0left\0", 13, 0, 32);
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diff changeset
292 settings_int_property(context, "", "Right", "video\0ntsc\0overscan\0right\0", 14, 0, 32);
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diff changeset
293 settings_int_property(context, "PAL Overscan", "Top", "video\0pal\0overscan\0top\0", 2, 0, 32);
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diff changeset
294 settings_int_property(context, "", "Bottom", "video\0pal\0overscan\0bottom\0", 17, 0, 32);
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diff changeset
295 settings_int_property(context, "", "Left", "video\0pal\0overscan\0left\0", 13, 0, 32);
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diff changeset
296 settings_int_property(context, "", "Right", "video\0pal\0overscan\0right\0", 14, 0, 32);
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diff changeset
297 if (nk_button_label(context, "Back")) {
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diff changeset
298 pop_view();
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diff changeset
299 }
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diff changeset
300 nk_end(context);
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diff changeset
301 }
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diff changeset
302 }
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diff changeset
303 void view_audio_settings(struct nk_context *context)
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diff changeset
304 {
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diff changeset
305
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diff changeset
306 }
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diff changeset
307 void view_system_settings(struct nk_context *context)
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diff changeset
308 {
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diff changeset
309
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diff changeset
310 }
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diff changeset
311
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diff changeset
312 void view_back(struct nk_context *context)
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diff changeset
313 {
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diff changeset
314 pop_view();
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diff changeset
315 pop_view();
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diff changeset
316 current_view(context);
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diff changeset
317 }
e890971f3757 Somewhat fleshed out video settings view
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diff changeset
318
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diff changeset
319 void view_settings(struct nk_context *context)
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diff changeset
320 {
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diff changeset
321 static menu_item items[] = {
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diff changeset
322 {"Key Bindings", view_key_bindings},
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diff changeset
323 {"Controllers", view_controllers},
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diff changeset
324 {"Video", view_video_settings},
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diff changeset
325 {"Audio", view_audio_settings},
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parents: 1487
diff changeset
326 {"System", view_system_settings},
1491
e890971f3757 Somewhat fleshed out video settings view
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diff changeset
327 {"Back", view_back}
1490
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diff changeset
328 };
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diff changeset
329
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diff changeset
330 const uint32_t num_buttons = 6;
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diff changeset
331 if (nk_begin(context, "Settings Menu", nk_rect(0, 0, render_width(), render_height()), 0)) {
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diff changeset
332 menu(context, sizeof(items)/sizeof(*items), items);
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diff changeset
333 nk_end(context);
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diff changeset
334 }
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diff changeset
335 }
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diff changeset
336
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diff changeset
337 void view_pause(struct nk_context *context)
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diff changeset
338 {
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diff changeset
339 static menu_item items[] = {
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diff changeset
340 {"Resume", view_play},
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diff changeset
341 {"Load ROM", view_load},
1487
6a35815cc409 Enable lock-on in Nuklear UI
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parents: 1486
diff changeset
342 {"Lock On", view_lock_on},
1476
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diff changeset
343 {"Save State", view_save_state},
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diff changeset
344 {"Load State", view_load_state},
1490
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diff changeset
345 {"Settings", view_settings},
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diff changeset
346 {"Exit", NULL}
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diff changeset
347 };
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diff changeset
348
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diff changeset
349 const uint32_t num_buttons = 3;
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diff changeset
350 if (nk_begin(context, "Main Menu", nk_rect(0, 0, render_width(), render_height()), 0)) {
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diff changeset
351 menu(context, sizeof(items)/sizeof(*items), items);
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diff changeset
352 nk_end(context);
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parents: 1475
diff changeset
353 }
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diff changeset
354 }
0646ae0987c3 Fix UI rendering in fullscreen and wome initial work on the "pause" menu
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parents: 1475
diff changeset
355
1474
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parents:
diff changeset
356 void view_menu(struct nk_context *context)
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parents:
diff changeset
357 {
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parents:
diff changeset
358 static menu_item items[] = {
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
359 {"Load ROM", view_load},
1490
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diff changeset
360 {"Settings", view_settings},
1474
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parents:
diff changeset
361 {"About", view_about},
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parents:
diff changeset
362 {"Exit", NULL}
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parents:
diff changeset
363 };
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parents:
diff changeset
364
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parents:
diff changeset
365 const uint32_t num_buttons = 3;
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parents:
diff changeset
366 if (nk_begin(context, "Main Menu", nk_rect(0, 0, render_width(), render_height()), 0)) {
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parents:
diff changeset
367 menu(context, sizeof(items)/sizeof(*items), items);
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parents:
diff changeset
368 nk_end(context);
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parents:
diff changeset
369 }
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parents:
diff changeset
370 }
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parents:
diff changeset
371
c5c022c7aa54 Initial work on Nuklear-based UI
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parents:
diff changeset
372 void blastem_nuklear_render(void)
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
373 {
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parents:
diff changeset
374 nk_input_end(context);
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parents:
diff changeset
375 current_view(context);
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parents:
diff changeset
376 nk_sdl_render(NK_ANTI_ALIASING_ON, 512 * 1024, 128 * 1024);
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parents:
diff changeset
377 nk_input_begin(context);
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parents:
diff changeset
378 }
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parents:
diff changeset
379
1486
a6881d0d76d0 Pause game execution when in the new UI pause menu
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parents: 1485
diff changeset
380 void ui_idle_loop(void)
1474
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parents:
diff changeset
381 {
1482
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parents: 1481
diff changeset
382 const uint32_t MIN_UI_DELAY = 15;
2d203bf73dbd Avoid burning a huge amount of CPU in the menu when emulation is not running and vsync is disabled
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parents: 1481
diff changeset
383 static uint32_t last;
1474
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parents:
diff changeset
384 while (current_view != view_play)
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parents:
diff changeset
385 {
1482
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diff changeset
386 uint32_t current = render_elapsed_ms();
2d203bf73dbd Avoid burning a huge amount of CPU in the menu when emulation is not running and vsync is disabled
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parents: 1481
diff changeset
387 if ((current - last) < MIN_UI_DELAY) {
2d203bf73dbd Avoid burning a huge amount of CPU in the menu when emulation is not running and vsync is disabled
Michael Pavone <pavone@retrodev.com>
parents: 1481
diff changeset
388 render_sleep_ms(MIN_UI_DELAY - (current - last) - 1);
2d203bf73dbd Avoid burning a huge amount of CPU in the menu when emulation is not running and vsync is disabled
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parents: 1481
diff changeset
389 }
2d203bf73dbd Avoid burning a huge amount of CPU in the menu when emulation is not running and vsync is disabled
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parents: 1481
diff changeset
390 last = current;
1474
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parents:
diff changeset
391 render_update_display();
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parents:
diff changeset
392 }
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parents:
diff changeset
393 }
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parents:
diff changeset
394 static void handle_event(SDL_Event *event)
c5c022c7aa54 Initial work on Nuklear-based UI
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parents:
diff changeset
395 {
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parents:
diff changeset
396 nk_sdl_handle_event(event);
c5c022c7aa54 Initial work on Nuklear-based UI
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parents:
diff changeset
397 }
c5c022c7aa54 Initial work on Nuklear-based UI
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parents:
diff changeset
398
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399 static void context_destroyed(void)
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400 {
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401 nk_sdl_device_destroy();
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402 }
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403 static void context_created(void)
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404 {
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405 nk_sdl_device_create();
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406 struct nk_font_atlas *atlas;
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407 nk_sdl_font_stash_begin(&atlas);
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408 char *font = default_font_path();
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409 if (!font) {
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410 fatal_error("Failed to find default font path\n");
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411 }
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412 struct nk_font *def_font = nk_font_atlas_add_from_file(atlas, font, 30, NULL);
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413 nk_sdl_font_stash_end();
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414 nk_style_set_font(context, &def_font->handle);
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415 }
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416
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417 void show_pause_menu(void)
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418 {
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419 context->style.window.background = nk_rgba(0, 0, 0, 128);
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420 context->style.window.fixed_background = nk_style_item_color(nk_rgba(0, 0, 0, 128));
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421 current_view = view_pause;
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422 current_system->request_exit(current_system);
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423 }
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424
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425 static uint8_t active;
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426 uint8_t is_nuklear_active(void)
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427 {
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428 return active;
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429 }
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430
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431 uint8_t is_nuklear_available(void)
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432 {
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433 if (!render_has_gl()) {
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434 //currently no fallback if GL2 unavailable
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435 return 0;
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436 }
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437 char *style = tern_find_path(config, "ui\0style\0", TVAL_PTR).ptrval;
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438 if (!style) {
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439 return 1;
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440 }
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441 return strcmp(style, "rom") != 0;
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442 }
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443
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444 void blastem_nuklear_init(uint8_t file_loaded)
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445 {
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446 context = nk_sdl_init(render_get_window());
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447
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448 struct nk_font_atlas *atlas;
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449 nk_sdl_font_stash_begin(&atlas);
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450 char *font = default_font_path();
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451 if (!font) {
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452 fatal_error("Failed to find default font path\n");
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453 }
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454 struct nk_font *def_font = nk_font_atlas_add_from_file(atlas, font, 30, NULL);
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455 nk_sdl_font_stash_end();
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456 nk_style_set_font(context, &def_font->handle);
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457 current_view = file_loaded ? view_play : view_menu;
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458 render_set_ui_render_fun(blastem_nuklear_render);
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459 render_set_event_handler(handle_event);
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diff changeset
460 render_set_gl_context_handlers(context_destroyed, context_created);
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461 active = 1;
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462 ui_idle_loop();
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463 }