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annotate src/video/dc/SDL_dcevents.c @ 2896:1ef2f1e75ff7

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Date: Sat, 20 Dec 2008 23:25:19 +0100 From: Couriersud Subject: 32 & 16 bit versions of blendrect and blendline attached are 32, 16 and 15 bit versions of the blendrect and blendline functionality. There was an issue with the bresenham alg. in drawline which I also fixed.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 20 Dec 2008 23:19:20 +0000
parents 99210400e8b9
children 4e4d814884aa
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL.h"
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25 #include "../../events/SDL_sysevents.h"
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26 #include "../../events/SDL_events_c.h"
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27 #include "SDL_dcvideo.h"
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28 #include "SDL_dcevents_c.h"
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29
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30 #include <dc/maple.h>
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31 #include <dc/maple/mouse.h>
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32 #include <dc/maple/keyboard.h>
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33
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34 const static unsigned short sdl_key[] = {
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35 /*0 */ 0, 0, 0, 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
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36 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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37 'u', 'v', 'w', 'x', 'y', 'z',
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38 /*1e */ '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
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39 /*28 */ SDLK_RETURN, SDLK_ESCAPE, SDLK_BACKSPACE, SDLK_TAB, SDLK_SPACE,
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40 SDLK_MINUS, SDLK_PLUS, SDLK_LEFTBRACKET,
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41 SDLK_RIGHTBRACKET, SDLK_BACKSLASH, 0, SDLK_SEMICOLON, SDLK_QUOTE,
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42 /*35 */ '~', SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH, SDLK_CAPSLOCK,
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43 SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F7, SDLK_F8,
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44 SDLK_F9, SDLK_F10, SDLK_F11, SDLK_F12,
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45 /*46 */ SDLK_PRINT, SDLK_SCROLLOCK, SDLK_PAUSE, SDLK_INSERT, SDLK_HOME,
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46 SDLK_PAGEUP, SDLK_DELETE, SDLK_END, SDLK_PAGEDOWN, SDLK_RIGHT,
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47 SDLK_LEFT, SDLK_DOWN, SDLK_UP,
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48 /*53 */ SDLK_NUMLOCK, SDLK_KP_DIVIDE, SDLK_KP_MULTIPLY, SDLK_KP_MINUS,
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49 SDLK_KP_PLUS, SDLK_KP_ENTER,
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50 SDLK_KP1, SDLK_KP2, SDLK_KP3, SDLK_KP4, SDLK_KP5, SDLK_KP6,
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51 /*5f */ SDLK_KP7, SDLK_KP8, SDLK_KP9, SDLK_KP0, SDLK_KP_PERIOD, 0
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52 /* S3 */
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53 };
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54
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55 const static unsigned short sdl_shift[] = {
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56 SDLK_LCTRL, SDLK_LSHIFT, SDLK_LALT, 0 /* S1 */ ,
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57 SDLK_RCTRL, SDLK_RSHIFT, SDLK_RALT, 0 /* S2 */ ,
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58 };
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59
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60 #define MOUSE_WHEELUP (1<<4)
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61 #define MOUSE_WHEELDOWN (1<<5)
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62
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63 static void
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64 mouse_update(void)
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65 {
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66 const static char sdl_mousebtn[] = {
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67 MOUSE_LEFTBUTTON,
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68 MOUSE_RIGHTBUTTON,
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69 MOUSE_SIDEBUTTON,
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70 MOUSE_WHEELUP,
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71 MOUSE_WHEELDOWN
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72 };
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73
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74 uint8 addr;
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75 mouse_cond_t cond;
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76
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77 static int prev_buttons;
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78 int buttons, changed;
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79 int i;
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80
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81 if ((addr = maple_first_mouse()) == 0 || mouse_get_cond(addr, &cond) < 0)
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82 return;
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83
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84 buttons = cond.buttons ^ 0xff;
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85 if (cond.dz < 0)
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86 buttons |= MOUSE_WHEELUP;
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87 if (cond.dz > 0)
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88 buttons |= MOUSE_WHEELDOWN;
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89
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90 if (cond.dx || cond.dy)
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91 SDL_PrivateMouseMotion(0, 1, cond.dx, cond.dy);
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92
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93 changed = buttons ^ prev_buttons;
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94 for (i = 0; i < sizeof(sdl_mousebtn); i++) {
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95 if (changed & sdl_mousebtn[i]) {
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96 SDL_PrivateMouseButton((buttons & sdl_mousebtn[i]) ?
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97 SDL_PRESSED : SDL_RELEASED, i, 0, 0);
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98 }
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99 }
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100 prev_buttons = buttons;
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101 }
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102
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103 static void
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104 keyboard_update(void)
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105 {
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106 static kbd_state_t old_state;
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107 static uint8 old_addr;
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108
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109 kbd_state_t *state;
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110 uint8 addr;
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111 int port, unit;
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112
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113 int shiftkeys;
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114 SDL_keysym keysym;
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115
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116 int i;
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117
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118 addr = maple_first_kb();
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119
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120 if (addr == 0)
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121 return;
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122
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123 if (addr != old_addr) {
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124 old_addr = addr;
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125 SDL_memset(&old_state, 0, sizeof(old_state));
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126 }
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127
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128 maple_raddr(addr, &port, &unit);
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129
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130 state = maple_dev_state(port, unit);
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131 if (!state)
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132 return;
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133
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134 shiftkeys = state->shift_keys ^ old_state.shift_keys;
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135 for (i = 0; i < sizeof(sdl_shift); i++) {
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136 if ((shiftkeys >> i) & 1) {
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137 keysym.sym = sdl_shift[i];
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138 SDL_PrivateKeyboard(((state->shift_keys >> i) & 1) ? SDL_PRESSED :
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139 SDL_RELEASED, &keysym);
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140 }
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141 }
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142
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143 for (i = 0; i < sizeof(sdl_key); i++) {
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144 if (state->matrix[i] != old_state.matrix[i]) {
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145 int key = sdl_key[i];
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146 if (key) {
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147 keysym.sym = key;
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148 SDL_PrivateKeyboard(state->matrix[i] ? SDL_PRESSED :
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149 SDL_RELEASED, &keysym);
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150 }
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151 }
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152 }
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153
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154 old_state = *state;
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155 }
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156
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157 void
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158 DC_PumpEvents(_THIS)
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159 {
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160 keyboard_update();
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161 mouse_update();
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162 }
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163
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164 void
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165 DC_InitOSKeymap(_THIS)
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166 {
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167 /* do nothing. */
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168 }
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169
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170 /* end of SDL_dcevents.c ... */
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171 /* vi: set ts=4 sw=4 expandtab: */