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annotate src/video/dc/SDL_dcevents.c @ 1643:51038e80ae59

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More general fix for bug #189 The clipping is done at a higher level, and the low level functions are passed clipped rectangles. Drivers which don't support source clipping have not been changed, so the image will be squished instead of clipped, but at least they will no longer crash when the destination rect was out of bounds.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 Apr 2006 06:47:23 +0000
parents 11134dc42da8
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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, SDLK_MINUS, SDLK_PLUS, SDLK_LEFTBRACKET,
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40 SDLK_RIGHTBRACKET, SDLK_BACKSLASH , 0, SDLK_SEMICOLON, SDLK_QUOTE,
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41 /*35*/ '~', SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH, SDLK_CAPSLOCK,
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42 SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F7, SDLK_F8, SDLK_F9, SDLK_F10, SDLK_F11, SDLK_F12,
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43 /*46*/ SDLK_PRINT, SDLK_SCROLLOCK, SDLK_PAUSE, SDLK_INSERT, SDLK_HOME, SDLK_PAGEUP, SDLK_DELETE, SDLK_END, SDLK_PAGEDOWN, SDLK_RIGHT, SDLK_LEFT, SDLK_DOWN, SDLK_UP,
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44 /*53*/ SDLK_NUMLOCK, SDLK_KP_DIVIDE, SDLK_KP_MULTIPLY, SDLK_KP_MINUS, SDLK_KP_PLUS, SDLK_KP_ENTER,
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45 SDLK_KP1, SDLK_KP2, SDLK_KP3, SDLK_KP4, SDLK_KP5, SDLK_KP6,
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46 /*5f*/ SDLK_KP7, SDLK_KP8, SDLK_KP9, SDLK_KP0, SDLK_KP_PERIOD, 0 /* S3 */
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47 };
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48
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49 const static unsigned short sdl_shift[] = {
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50 SDLK_LCTRL,SDLK_LSHIFT,SDLK_LALT,0 /* S1 */,
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51 SDLK_RCTRL,SDLK_RSHIFT,SDLK_RALT,0 /* S2 */,
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52 };
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53
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54 #define MOUSE_WHEELUP (1<<4)
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55 #define MOUSE_WHEELDOWN (1<<5)
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56
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57 static void mouse_update(void)
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58 {
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59 const static char sdl_mousebtn[] = {
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60 MOUSE_LEFTBUTTON,
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61 MOUSE_RIGHTBUTTON,
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62 MOUSE_SIDEBUTTON,
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63 MOUSE_WHEELUP,
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64 MOUSE_WHEELDOWN
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65 };
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66
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67 uint8 addr;
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68 mouse_cond_t cond;
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69
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70 static int prev_buttons;
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71 int buttons,changed;
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72 int i;
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73
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74 if ((addr = maple_first_mouse())==0 || mouse_get_cond(addr, &cond)<0) return;
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75
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76 buttons = cond.buttons^0xff;
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77 if (cond.dz<0) buttons|=MOUSE_WHEELUP;
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78 if (cond.dz>0) buttons|=MOUSE_WHEELDOWN;
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79
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80 if (cond.dx||cond.dy) SDL_PrivateMouseMotion(0,1,cond.dx,cond.dy);
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81
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82 changed = buttons^prev_buttons;
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83 for(i=0;i<sizeof(sdl_mousebtn);i++) {
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84 if (changed & sdl_mousebtn[i]) {
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85 SDL_PrivateMouseButton((buttons & sdl_mousebtn[i])?SDL_PRESSED:SDL_RELEASED,i,0,0);
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86 }
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87 }
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88 prev_buttons = buttons;
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89 }
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90
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91 static void keyboard_update(void)
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92 {
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93 static kbd_state_t old_state;
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94 static uint8 old_addr;
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95
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96 kbd_state_t *state;
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97 uint8 addr;
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98 int port,unit;
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99
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100 int shiftkeys;
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101 SDL_keysym keysym;
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102
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103 int i;
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104
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105 addr = maple_first_kb();
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106
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107 if (addr==0) return;
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108
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109 if (addr!=old_addr) {
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110 old_addr = addr;
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111 SDL_memset(&old_state,0,sizeof(old_state));
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112 }
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113
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114 maple_raddr(addr,&port,&unit);
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115
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116 state = maple_dev_state(port,unit);
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117 if (!state) return;
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118
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119 shiftkeys = state->shift_keys ^ old_state.shift_keys;
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120 for(i=0;i<sizeof(sdl_shift);i++) {
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121 if ((shiftkeys>>i)&1) {
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122 keysym.sym = sdl_shift[i];
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123 SDL_PrivateKeyboard(((state->shift_keys>>i)&1)?SDL_PRESSED:SDL_RELEASED,&keysym);
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124 }
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125 }
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126
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127 for(i=0;i<sizeof(sdl_key);i++) {
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128 if (state->matrix[i]!=old_state.matrix[i]) {
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129 int key = sdl_key[i];
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130 if (key) {
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131 keysym.sym = key;
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132 SDL_PrivateKeyboard(state->matrix[i]?SDL_PRESSED:SDL_RELEASED,&keysym);
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133 }
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134 }
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135 }
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136
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137 old_state = *state;
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138 }
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139
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140 void DC_PumpEvents(_THIS)
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141 {
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142 keyboard_update();
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143 mouse_update();
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144 }
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145
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146 void DC_InitOSKeymap(_THIS)
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147 {
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148 /* do nothing. */
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149 }
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150
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151 /* end of SDL_dcevents.c ... */
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152