Mercurial > repos > blastem
annotate io.c @ 469:5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
author | Mike Pavone <pavone@retrodev.com> |
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date | Wed, 11 Sep 2013 19:26:35 -0700 |
parents | 140af5509ce7 |
children | 3e1573fa22cf |
rev | line source |
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1 /* |
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2 Copyright 2013 Michael Pavone |
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3 This file is part of BlastEm. |
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
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5 */ |
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6 #include "io.h" |
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7 #include "blastem.h" |
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8 #include "render.h" |
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9 |
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10 enum { |
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11 BIND_NONE, |
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12 BIND_GAMEPAD1, |
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13 BIND_GAMEPAD2, |
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14 BIND_UI |
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15 }; |
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16 |
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17 typedef enum { |
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18 UI_DEBUG_MODE_INC, |
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19 UI_DEBUG_PAL_INC, |
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20 UI_ENTER_DEBUGGER, |
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21 UI_SAVE_STATE, |
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22 UI_EXIT |
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23 } ui_action; |
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24 |
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25 typedef struct { |
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26 uint8_t bind_type; |
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27 uint8_t subtype_a; |
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28 uint8_t subtype_b; |
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29 uint8_t value; |
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30 } keybinding; |
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31 |
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32 typedef struct { |
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33 keybinding bindings[4]; |
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34 uint8_t state; |
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35 } joydpad; |
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36 |
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37 keybinding * bindings[256]; |
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38 keybinding * joybindings[MAX_JOYSTICKS]; |
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39 joydpad * joydpads[MAX_JOYSTICKS]; |
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40 const uint8_t dpadbits[] = {RENDER_DPAD_UP, RENDER_DPAD_DOWN, RENDER_DPAD_LEFT, RENDER_DPAD_RIGHT}; |
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41 |
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42 void bind_key(int keycode, uint8_t bind_type, uint8_t subtype_a, uint8_t subtype_b, uint8_t value) |
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43 { |
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44 int bucket = keycode >> 8 & 0xFF; |
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45 if (!bindings[bucket]) { |
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46 bindings[bucket] = malloc(sizeof(keybinding) * 256); |
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47 memset(bindings[bucket], 0, sizeof(keybinding) * 256); |
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48 } |
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49 int idx = keycode & 0xFF; |
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50 bindings[bucket][idx].bind_type = bind_type; |
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51 bindings[bucket][idx].subtype_a = subtype_a; |
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52 bindings[bucket][idx].subtype_b = subtype_b; |
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53 bindings[bucket][idx].value = value; |
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54 } |
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55 |
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56 void bind_button(int joystick, int button, uint8_t bind_type, uint8_t subtype_a, uint8_t subtype_b, uint8_t value) |
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57 { |
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58 if (joystick >= MAX_JOYSTICKS) { |
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59 return; |
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60 } |
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61 if (!joybindings[joystick]) { |
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62 int num = render_joystick_num_buttons(joystick); |
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63 if (!num) { |
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64 return; |
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65 } |
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66 joybindings[joystick] = malloc(sizeof(keybinding)*num); |
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67 memset(joybindings[joystick], 0, sizeof(keybinding)*num); |
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68 } |
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69 joybindings[joystick][button].bind_type = bind_type; |
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70 joybindings[joystick][button].subtype_a = subtype_a; |
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71 joybindings[joystick][button].subtype_b = subtype_b; |
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72 joybindings[joystick][button].value = value; |
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73 } |
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74 |
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75 void bind_dpad(int joystick, int dpad, int direction, uint8_t bind_type, uint8_t subtype_a, uint8_t subtype_b, uint8_t value) |
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76 { |
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77 if (joystick >= MAX_JOYSTICKS) { |
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78 return; |
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79 } |
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80 if (!joydpads[joystick]) { |
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81 int num = render_joystick_num_hats(joystick); |
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82 if (!num) { |
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83 return; |
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84 } |
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85 joydpads[joystick] = malloc(sizeof(joydpad)*num); |
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86 memset(joydpads[joystick], 0, sizeof(joydpad)*num); |
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87 } |
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88 for (int i = 0; i < 4; i ++) { |
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89 if (dpadbits[i] & direction) { |
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90 joydpads[joystick][dpad].bindings[i].bind_type = bind_type; |
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91 joydpads[joystick][dpad].bindings[i].subtype_a = subtype_a; |
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92 joydpads[joystick][dpad].bindings[i].subtype_b = subtype_b; |
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93 joydpads[joystick][dpad].bindings[i].value = value; |
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94 break; |
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95 } |
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96 } |
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97 } |
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98 |
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99 #define GAMEPAD_BUTTON(PRI_SLOT, SEC_SLOT, VALUE) (PRI_SLOT << 12 | SEC_SLOT << 8 | VALUE) |
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100 |
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101 #define DPAD_UP GAMEPAD_BUTTON(GAMEPAD_TH0, GAMEPAD_TH1, 0x01) |
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102 #define BUTTON_Z GAMEPAD_BUTTON(GAMEPAD_EXTRA, GAMEPAD_NONE, 0x01) |
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103 #define DPAD_DOWN GAMEPAD_BUTTON(GAMEPAD_TH0, GAMEPAD_TH1, 0x02) |
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104 #define BUTTON_Y GAMEPAD_BUTTON(GAMEPAD_EXTRA, GAMEPAD_NONE, 0x02) |
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105 #define DPAD_LEFT GAMEPAD_BUTTON(GAMEPAD_TH1, GAMEPAD_NONE, 0x04) |
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106 #define BUTTON_X GAMEPAD_BUTTON(GAMEPAD_EXTRA, GAMEPAD_NONE, 0x04) |
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107 #define DPAD_RIGHT GAMEPAD_BUTTON(GAMEPAD_TH1, GAMEPAD_NONE, 0x08) |
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108 #define BUTTON_MODE GAMEPAD_BUTTON(GAMEPAD_EXTRA, GAMEPAD_NONE, 0x08) |
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109 #define BUTTON_A GAMEPAD_BUTTON(GAMEPAD_TH0, GAMEPAD_NONE, 0x10) |
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110 #define BUTTON_B GAMEPAD_BUTTON(GAMEPAD_TH1, GAMEPAD_NONE, 0x10) |
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111 #define BUTTON_START GAMEPAD_BUTTON(GAMEPAD_TH0, GAMEPAD_NONE, 0x20) |
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112 #define BUTTON_C GAMEPAD_BUTTON(GAMEPAD_TH1, GAMEPAD_NONE, 0x20) |
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113 |
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114 void bind_gamepad(int keycode, int gamepadnum, int button) |
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115 { |
451
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116 |
421
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117 if (gamepadnum < 1 || gamepadnum > 2) { |
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118 return; |
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119 } |
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120 uint8_t bind_type = gamepadnum - 1 + BIND_GAMEPAD1; |
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121 bind_key(keycode, bind_type, button >> 12, button >> 8 & 0xF, button & 0xFF); |
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122 } |
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123 |
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124 void bind_button_gamepad(int joystick, int joybutton, int gamepadnum, int padbutton) |
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125 { |
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126 if (gamepadnum < 1 || gamepadnum > 2) { |
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127 return; |
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128 } |
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129 uint8_t bind_type = gamepadnum - 1 + BIND_GAMEPAD1; |
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130 bind_button(joystick, joybutton, bind_type, padbutton >> 12, padbutton >> 8 & 0xF, padbutton & 0xFF); |
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131 } |
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132 |
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133 void bind_dpad_gamepad(int joystick, int dpad, uint8_t direction, int gamepadnum, int button) |
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134 { |
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135 if (gamepadnum < 1 || gamepadnum > 2) { |
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136 return; |
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137 } |
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138 uint8_t bind_type = gamepadnum - 1 + BIND_GAMEPAD1; |
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139 bind_dpad(joystick, dpad, direction, bind_type, button >> 12, button >> 8 & 0xF, button & 0xFF); |
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140 } |
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141 |
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142 void bind_ui(int keycode, ui_action action) |
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143 { |
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144 bind_key(keycode, BIND_UI, action, 0, 0); |
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145 } |
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146 |
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147 void handle_binding_down(keybinding * binding) |
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148 { |
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149 switch(binding->bind_type) |
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150 { |
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151 case BIND_GAMEPAD1: |
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152 case BIND_GAMEPAD2: |
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153 if (binding->subtype_a <= GAMEPAD_EXTRA) { |
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154 genesis->ports[binding->bind_type - BIND_GAMEPAD1].input[binding->subtype_a] |= binding->value; |
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155 } |
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156 if (binding->subtype_b <= GAMEPAD_EXTRA) { |
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157 genesis->ports[binding->bind_type - BIND_GAMEPAD1].input[binding->subtype_b] |= binding->value; |
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158 } |
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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 void handle_keydown(int keycode) |
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164 { |
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165 int bucket = keycode >> 8 & 0xFF; |
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166 if (!bindings[bucket]) { |
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167 return; |
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168 } |
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169 int idx = keycode & 0xFF; |
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170 keybinding * binding = bindings[bucket] + idx; |
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171 handle_binding_down(binding); |
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172 } |
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173 |
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|
174 void handle_joydown(int joystick, int button) |
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|
175 { |
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|
176 if (!joybindings[joystick]) { |
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177 return; |
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|
178 } |
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|
179 keybinding * binding = joybindings[joystick] + button; |
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|
180 handle_binding_down(binding); |
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|
181 } |
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182 |
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|
183 uint8_t ui_debug_mode = 0; |
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184 uint8_t ui_debug_pal = 0; |
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185 |
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|
186 void handle_binding_up(keybinding * binding) |
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|
187 { |
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|
188 switch(binding->bind_type) |
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189 { |
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|
190 case BIND_GAMEPAD1: |
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191 case BIND_GAMEPAD2: |
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192 if (binding->subtype_a <= GAMEPAD_EXTRA) { |
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193 genesis->ports[binding->bind_type - BIND_GAMEPAD1].input[binding->subtype_a] &= ~binding->value; |
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|
194 } |
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195 if (binding->subtype_b <= GAMEPAD_EXTRA) { |
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196 genesis->ports[binding->bind_type - BIND_GAMEPAD1].input[binding->subtype_b] &= ~binding->value; |
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197 } |
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|
198 break; |
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|
199 case BIND_UI: |
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200 switch (binding->subtype_a) |
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201 { |
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|
202 case UI_DEBUG_MODE_INC: |
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203 ui_debug_mode++; |
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204 if (ui_debug_mode == 4) { |
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205 ui_debug_mode = 0; |
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|
206 } |
437
afbea09d7fb4
Restore one of the VDP debugging modes
Mike Pavone <pavone@retrodev.com>
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432
diff
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|
207 genesis->vdp->debug = ui_debug_mode; |
421
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208 break; |
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|
209 case UI_DEBUG_PAL_INC: |
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210 ui_debug_pal++; |
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211 if (ui_debug_pal == 4) { |
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212 ui_debug_pal = 0; |
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|
213 } |
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|
214 render_debug_pal(ui_debug_pal); |
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|
215 break; |
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|
216 case UI_ENTER_DEBUGGER: |
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217 break_on_sync = 1; |
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218 break; |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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444
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|
219 case UI_SAVE_STATE: |
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Added support for saving savestates. Added gst savestate format test harness
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444
diff
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|
220 save_state = 1; |
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Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
444
diff
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|
221 break; |
444
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222 case UI_EXIT: |
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223 exit(0); |
421
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224 } |
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225 break; |
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226 } |
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227 } |
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228 |
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229 void handle_keyup(int keycode) |
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230 { |
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231 int bucket = keycode >> 8 & 0xFF; |
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232 if (!bindings[bucket]) { |
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233 return; |
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234 } |
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235 int idx = keycode & 0xFF; |
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236 keybinding * binding = bindings[bucket] + idx; |
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237 handle_binding_up(binding); |
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238 } |
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239 |
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240 void handle_joyup(int joystick, int button) |
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241 { |
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242 if (!joybindings[joystick]) { |
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243 return; |
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244 } |
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245 keybinding * binding = joybindings[joystick] + button; |
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246 handle_binding_up(binding); |
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247 } |
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248 |
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249 void handle_joy_dpad(int joystick, int dpadnum, uint8_t value) |
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250 { |
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251 if (!joydpads[joystick]) { |
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252 return; |
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253 } |
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254 joydpad * dpad = joydpads[joystick] + dpadnum; |
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255 uint8_t newdown = (value ^ dpad->state) & value; |
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256 uint8_t newup = ((~value) ^ (~dpad->state)) & (~value); |
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257 dpad->state = value; |
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258 for (int i = 0; i < 4; i++) { |
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259 if (newdown & dpadbits[i]) { |
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260 handle_binding_down(dpad->bindings + i); |
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261 } else if(newup & dpadbits[i]) { |
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262 handle_binding_up(dpad->bindings + i); |
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263 } |
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264 } |
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265 } |
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266 |
432
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267 int parse_binding_target(char * target, tern_node * padbuttons, int * ui_out, int * padnum_out, int * padbutton_out) |
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268 { |
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269 int gpadslen = strlen("gamepads."); |
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270 if (!memcmp(target, "gamepads.", gpadslen)) { |
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271 if (target[gpadslen] >= '1' && target[gpadslen] <= '8') { |
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272 int padnum = target[gpadslen] - '0'; |
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273 int button = tern_find_int(padbuttons, target + gpadslen + 1, 0); |
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274 if (button) { |
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275 *padnum_out = padnum; |
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276 *padbutton_out = button; |
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277 return 1; |
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278 } else { |
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279 if (target[gpadslen+1]) { |
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280 fprintf(stderr, "Gamepad mapping string '%s' refers to an invalid button '%s'\n", target, target + gpadslen + 1); |
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281 } else { |
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282 fprintf(stderr, "Gamepad mapping string '%s' has no button component\n", target); |
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283 } |
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284 } |
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285 } else { |
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286 fprintf(stderr, "Gamepad mapping string '%s' refers to an invalid gamepad number %c\n", target, target[gpadslen]); |
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287 } |
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288 } else if(!memcmp(target, "ui.", strlen("ui."))) { |
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289 if (!strcmp(target + 3, "vdp_debug_mode")) { |
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290 *ui_out = UI_DEBUG_MODE_INC; |
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291 } else if(!strcmp(target + 3, "vdp_debug_pal")) { |
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292 *ui_out = UI_DEBUG_PAL_INC; |
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293 } else if(!strcmp(target + 3, "enter_debugger")) { |
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294 *ui_out = UI_ENTER_DEBUGGER; |
451
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295 } else if(!strcmp(target + 3, "save_state")) { |
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296 *ui_out = UI_SAVE_STATE; |
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297 } else if(!strcmp(target + 3, "exit")) { |
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298 *ui_out = UI_EXIT; |
432
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299 } else { |
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300 fprintf(stderr, "Unreconized UI binding type %s\n", target); |
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301 return 0; |
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302 } |
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303 return 2; |
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304 } else { |
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305 fprintf(stderr, "Unrecognized binding type %s\n", target); |
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306 } |
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307 return 0; |
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308 } |
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309 |
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310 void process_keys(tern_node * cur, tern_node * special, tern_node * padbuttons, char * prefix) |
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311 { |
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312 char * curstr; |
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313 int len; |
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314 if (!cur) { |
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315 return; |
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316 } |
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317 char onec[2]; |
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318 if (prefix) { |
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319 len = strlen(prefix); |
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320 curstr = malloc(len + 2); |
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321 memcpy(curstr, prefix, len); |
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322 } else { |
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323 curstr = onec; |
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324 len = 0; |
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325 } |
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326 curstr[len] = cur->el; |
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327 if (cur->el) { |
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328 curstr[len+1] = 0; |
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329 process_keys(cur->straight.next, special, padbuttons, curstr); |
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330 } else { |
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331 int keycode = tern_find_int(special, curstr, 0); |
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332 if (!keycode) { |
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333 keycode = curstr[0]; |
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334 if (curstr[1] != 0) { |
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335 fprintf(stderr, "%s is not recognized as a key identifier, truncating to %c\n", curstr, curstr[0]); |
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336 } |
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337 } |
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338 char * target = cur->straight.value.ptrval; |
432
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339 int ui_func, padnum, button; |
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340 int bindtype = parse_binding_target(target, padbuttons, &ui_func, &padnum, &button); |
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341 if (bindtype == 1) { |
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342 bind_gamepad(keycode, padnum, button); |
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343 } else if(bindtype == 2) { |
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344 bind_ui(keycode, ui_func); |
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345 } |
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346 } |
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347 process_keys(cur->left, special, padbuttons, prefix); |
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348 process_keys(cur->right, special, padbuttons, prefix); |
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349 } |
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350 |
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351 void set_keybindings() |
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352 { |
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353 tern_node * special = tern_insert_int(NULL, "up", RENDERKEY_UP); |
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354 special = tern_insert_int(special, "down", RENDERKEY_DOWN); |
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355 special = tern_insert_int(special, "left", RENDERKEY_LEFT); |
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356 special = tern_insert_int(special, "right", RENDERKEY_RIGHT); |
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357 special = tern_insert_int(special, "enter", '\r'); |
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358 special = tern_insert_int(special, "esc", RENDERKEY_ESC); |
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359 |
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360 tern_node * padbuttons = tern_insert_int(NULL, ".up", DPAD_UP); |
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361 padbuttons = tern_insert_int(padbuttons, ".down", DPAD_DOWN); |
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362 padbuttons = tern_insert_int(padbuttons, ".left", DPAD_LEFT); |
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363 padbuttons = tern_insert_int(padbuttons, ".right", DPAD_RIGHT); |
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364 padbuttons = tern_insert_int(padbuttons, ".a", BUTTON_A); |
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365 padbuttons = tern_insert_int(padbuttons, ".b", BUTTON_B); |
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366 padbuttons = tern_insert_int(padbuttons, ".c", BUTTON_C); |
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367 padbuttons = tern_insert_int(padbuttons, ".x", BUTTON_X); |
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368 padbuttons = tern_insert_int(padbuttons, ".y", BUTTON_Y); |
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369 padbuttons = tern_insert_int(padbuttons, ".z", BUTTON_Z); |
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370 padbuttons = tern_insert_int(padbuttons, ".start", BUTTON_START); |
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371 padbuttons = tern_insert_int(padbuttons, ".mode", BUTTON_MODE); |
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372 |
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373 tern_node * keys = tern_find_prefix(config, "bindingskeys"); |
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374 process_keys(keys, special, padbuttons, NULL); |
432
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375 char prefix[] = "bindingspads00"; |
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376 for (int i = 0; i < 100 && i < render_num_joysticks(); i++) |
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377 { |
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378 if (i < 10) { |
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379 prefix[strlen("bindingspads")] = i + '0'; |
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380 prefix[strlen("bindingspads")+1] = 0; |
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381 } else { |
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382 prefix[strlen("bindingspads")] = i/10 + '0'; |
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383 prefix[strlen("bindingspads")+1] = i%10 + '0'; |
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384 } |
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385 tern_node * pad = tern_find_prefix(config, prefix); |
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386 if (pad) { |
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387 char dprefix[] = "dpads0"; |
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388 for (int dpad = 0; dpad < 10 && dpad < render_joystick_num_hats(i); dpad++) |
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389 { |
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390 dprefix[strlen("dpads")] = dpad + '0'; |
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391 tern_node * pad_dpad = tern_find_prefix(pad, dprefix); |
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392 char * dirs[] = {"up", "down", "left", "right"}; |
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393 int dirnums[] = {RENDER_DPAD_UP, RENDER_DPAD_DOWN, RENDER_DPAD_LEFT, RENDER_DPAD_RIGHT}; |
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394 for (int dir = 0; dir < sizeof(dirs)/sizeof(dirs[0]); dir++) { |
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395 char * target = tern_find_ptr(pad_dpad, dirs[dir]); |
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396 if (target) { |
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397 int ui_func, padnum, button; |
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398 int bindtype = parse_binding_target(target, padbuttons, &ui_func, &padnum, &button); |
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399 if (bindtype == 1) { |
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400 bind_dpad_gamepad(i, dpad, dirnums[dir], padnum, button); |
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401 } |
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402 //TODO: Handle UI bindings |
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403 } |
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404 } |
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405 } |
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406 char bprefix[] = "buttons00"; |
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407 for (int but = 0; but < 100 && but < render_joystick_num_buttons(i); but++) |
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408 { |
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409 if (but < 10) { |
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410 bprefix[strlen("buttons")] = but + '0'; |
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411 bprefix[strlen("buttons")+1] = 0; |
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412 } else { |
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413 bprefix[strlen("buttons")] = but/10 + '0'; |
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414 bprefix[strlen("buttons")+1] = but%10 + '0'; |
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415 } |
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416 char * target = tern_find_ptr(pad, bprefix); |
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417 if (target) { |
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418 int ui_func, padnum, button; |
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419 int bindtype = parse_binding_target(target, padbuttons, &ui_func, &padnum, &button); |
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420 if (bindtype == 1) { |
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421 bind_button_gamepad(i, but, padnum, button); |
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422 } |
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423 //TODO: Handle UI bindings |
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424 } |
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425 } |
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426 } |
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427 } |
421
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428 } |
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429 |
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430 #define TH 0x40 |
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431 #define TH_TIMEOUT 8000 |
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432 |
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433 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction) |
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434 { |
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435 /*uint8_t control = pad->control | 0x80; |
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436 uint8_t th = control & pad->output; |
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437 if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) { |
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438 printf("adjust_cycles | control: %X, TH: %X, GAMEPAD_TH0: %X, GAMEPAD_TH1: %X, TH Counter: %d, Timeout: %d, Cycle: %d\n", control, th, pad->input[GAMEPAD_TH0], pad->input[GAMEPAD_TH1], pad->th_counter,pad->timeout_cycle, current_cycle); |
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439 }*/ |
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440 if (current_cycle >= pad->timeout_cycle) { |
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441 pad->th_counter = 0; |
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442 } else { |
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443 pad->timeout_cycle -= deduction; |
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444 } |
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445 } |
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446 |
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447 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle) |
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448 { |
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449 if (pad->control & TH) { |
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450 //check if TH has changed |
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451 if ((pad->output & TH) ^ (value & TH)) { |
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452 if (current_cycle >= pad->timeout_cycle) { |
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453 pad->th_counter = 0; |
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454 } |
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455 if (!(value & TH)) { |
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456 pad->th_counter++; |
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457 } |
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458 pad->timeout_cycle = current_cycle + TH_TIMEOUT; |
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459 } |
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460 } |
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461 pad->output = value; |
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462 } |
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463 |
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464 uint8_t io_data_read(io_port * pad, uint32_t current_cycle) |
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465 { |
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466 uint8_t control = pad->control | 0x80; |
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467 uint8_t th = control & pad->output; |
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468 uint8_t input; |
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469 if (current_cycle >= pad->timeout_cycle) { |
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470 pad->th_counter = 0; |
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471 } |
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472 /*if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) { |
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473 printf("io_data_read | control: %X, TH: %X, GAMEPAD_TH0: %X, GAMEPAD_TH1: %X, TH Counter: %d, Timeout: %d, Cycle: %d\n", control, th, pad->input[GAMEPAD_TH0], pad->input[GAMEPAD_TH1], pad->th_counter,pad->timeout_cycle, context->current_cycle); |
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474 }*/ |
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475 if (th) { |
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476 if (pad->th_counter == 3) { |
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477 input = pad->input[GAMEPAD_EXTRA]; |
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478 } else { |
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479 input = pad->input[GAMEPAD_TH1]; |
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480 } |
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481 } else { |
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482 if (pad->th_counter == 3) { |
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483 input = pad->input[GAMEPAD_TH0] | 0xF; |
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484 } else if(pad->th_counter == 4) { |
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485 input = pad->input[GAMEPAD_TH0] & 0x30; |
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486 } else { |
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487 input = pad->input[GAMEPAD_TH0] | 0xC; |
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488 } |
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489 } |
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490 uint8_t value = ((~input) & (~control)) | (pad->output & control); |
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491 /*if (pad->input[GAMEPAD_TH0] || pad->input[GAMEPAD_TH1]) { |
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492 printf ("value: %X\n", value); |
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493 }*/ |
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494 return value; |
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495 } |
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496 |
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497 |