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annotate src/video/ps2gs/SDL_gsmouse.c @ 1379:c0a74f199ecf

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Use only safe string functions
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Feb 2006 23:46:34 +0000
parents 19418e4422cb
children d910939febfa
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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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #include <sys/ioctl.h>
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24
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25 #include "SDL_mouse.h"
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26 #include "../../events/SDL_events_c.h"
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27 #include "../SDL_cursor_c.h"
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28 #include "SDL_gsvideo.h"
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29 #include "SDL_gsmouse_c.h"
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32 /* The implementation dependent data for the window manager cursor */
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33 struct WMcursor {
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34 int unused;
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35 };
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36
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37 /* There isn't any implementation dependent data */
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38 void GS_FreeWMCursor(_THIS, WMcursor *cursor)
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39 {
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40 return;
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41 }
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42
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43 /* There isn't any implementation dependent data */
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44 WMcursor *GS_CreateWMCursor(_THIS,
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45 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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46 {
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47 return((WMcursor *)0x01);
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48 }
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49
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50 static void GS_MoveCursor(_THIS, SDL_Cursor *cursor, int x, int y)
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51 {
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52 SDL_Surface *screen;
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53 struct ps2_image image;
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54 SDL_Rect area;
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55 int mouse_y1, mouse_y2;
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56 void *saved_pixels;
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57 int screen_updated;
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58
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59 /* Lock so we don't interrupt an update with mouse motion */
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60 SDL_LockCursor();
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61
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62 /* Make sure any pending DMA has completed */
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63 if ( dma_pending ) {
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64 ioctl(console_fd, PS2IOC_SENDQCT, 1);
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65 dma_pending = 0;
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66 }
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67
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68 /* Remove the cursor image from the DMA area */
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69 screen = this->screen;
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70 saved_pixels = screen->pixels;
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71 screen->pixels = mapped_mem + screen->offset;
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72 screen_updated = 0;
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73 if ( cursor_drawn ) {
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74 SDL_EraseCursorNoLock(screen);
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75 cursor_drawn = 0;
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76 screen_updated = 1;
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77 }
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78
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79 /* Save the current mouse area */
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80 SDL_MouseRect(&area);
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81 mouse_y1 = area.y;
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82 mouse_y2 = area.y+area.h;
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83
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84 /* Only draw the new cursor if there was one passed in */
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85 if ( cursor ) {
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86 /* Set the new location */
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87 cursor->area.x = (x - cursor->hot_x);
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88 cursor->area.y = (y - cursor->hot_y);
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89
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90 /* Draw the cursor at the new location */
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91 if ( (SDL_cursorstate & CURSOR_VISIBLE) && screen->pixels ) {
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92 SDL_DrawCursorNoLock(screen);
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93 cursor_drawn = 1;
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94 screen_updated = 1;
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95 }
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96 }
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97 screen->pixels = saved_pixels;
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98
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99 /* Update the affected area of the screen */
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100 if ( screen_updated ) {
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101 SDL_MouseRect(&area);
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102 if ( area.y < mouse_y1 ) {
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103 mouse_y1 = area.y;
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104 }
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105 if ( (area.y+area.h) > mouse_y2 ) {
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106 mouse_y2 = area.y+area.h;
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107 }
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108 image = screen_image;
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109 image.y += screen->offset / screen->pitch + mouse_y1;
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110 image.h = mouse_y2 - mouse_y1;
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111 image.ptr = mapped_mem +
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112 (image.y - screen_image.y) * screen->pitch;
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113 ioctl(console_fd, PS2IOC_LOADIMAGE, &image);
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114
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115 /* Need to scale offscreen image to TV output */
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116 if ( image.y > 0 ) {
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117 scaleimage_nonblock(console_fd,
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118 tex_tags_mem, scale_tags_mem);
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119 }
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120 }
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121
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122 /* We're finished */
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123 SDL_UnlockCursor();
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124 }
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125
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126 void GS_MoveWMCursor(_THIS, int x, int y)
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127 {
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128 GS_MoveCursor(this, SDL_cursor, x, y);
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129 }
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130
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131 int GS_ShowWMCursor(_THIS, WMcursor *wmcursor)
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132 {
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133 SDL_Cursor *cursor;
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134 int x, y;
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135
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136 /* Draw the cursor at the appropriate location */
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137 SDL_GetMouseState(&x, &y);
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138 if ( wmcursor ) {
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139 cursor = SDL_cursor;
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140 } else {
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diff changeset
141 cursor = NULL;
f590dd383b5d Added Linux PlayStation 2 Graphics Synthesizer support
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
142 }
f590dd383b5d Added Linux PlayStation 2 Graphics Synthesizer support
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
143 GS_MoveCursor(this, cursor, x, y);
f590dd383b5d Added Linux PlayStation 2 Graphics Synthesizer support
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
144 return(1);
f590dd383b5d Added Linux PlayStation 2 Graphics Synthesizer support
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
145 }