Mercurial > sdl-ios-xcode

annotate src/video/ps2gs/SDL_gsmouse.c @ 3844:332a59e39ce1 SDL-ryan-multiple-audio-device

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I really don't want to update these last two audio backends...I added an error that says if no one complains, the backends will be removed eventually. So if anyone ever wants them and they care enough to speak up, we'll know to do something about it. If no one does, that's less code to maintain. :)
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 17 Oct 2006 06:45:17 +0000
parents c121d94672cb
children 99210400e8b9
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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24 #include <sys/ioctl.h>
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25
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26 #include "SDL_mouse.h"
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27 #include "../../events/SDL_events_c.h"
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28 #include "../SDL_cursor_c.h"
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29 #include "SDL_gsvideo.h"
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30 #include "SDL_gsmouse_c.h"
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32
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33 /* The implementation dependent data for the window manager cursor */
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34 struct WMcursor
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35 {
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36 int unused;
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37 };
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38
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39 /* There isn't any implementation dependent data */
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40 void
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41 GS_FreeWMCursor(_THIS, WMcursor * cursor)
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42 {
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43 return;
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44 }
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45
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46 /* There isn't any implementation dependent data */
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47 WMcursor *
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48 GS_CreateWMCursor(_THIS,
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49 Uint8 * data, Uint8 * mask, int w, int h, int hot_x,
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50 int hot_y)
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51 {
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52 return ((WMcursor *) 0x01);
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53 }
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54
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55 static void
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56 GS_MoveCursor(_THIS, SDL_Cursor * cursor, int x, int y)
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57 {
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58 SDL_Surface *screen;
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59 struct ps2_image image;
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60 SDL_Rect area;
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61 int mouse_y1, mouse_y2;
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62 void *saved_pixels;
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63 int screen_updated;
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64
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65 /* Lock so we don't interrupt an update with mouse motion */
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66 SDL_LockCursor();
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67
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68 /* Make sure any pending DMA has completed */
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69 if (dma_pending) {
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70 ioctl(console_fd, PS2IOC_SENDQCT, 1);
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71 dma_pending = 0;
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72 }
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73
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74 /* Remove the cursor image from the DMA area */
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75 screen = this->screen;
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76 saved_pixels = screen->pixels;
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77 screen->pixels = mapped_mem + screen->offset;
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78 screen_updated = 0;
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79 if (cursor_drawn) {
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80 SDL_EraseCursorNoLock(screen);
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81 cursor_drawn = 0;
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82 screen_updated = 1;
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83 }
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84
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85 /* Save the current mouse area */
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86 SDL_MouseRect(&area);
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87 mouse_y1 = area.y;
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88 mouse_y2 = area.y + area.h;
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89
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90 /* Only draw the new cursor if there was one passed in */
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91 if (cursor) {
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92 /* Set the new location */
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93 cursor->area.x = (x - cursor->hot_x);
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94 cursor->area.y = (y - cursor->hot_y);
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95
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96 /* Draw the cursor at the new location */
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97 if ((SDL_cursorstate & CURSOR_VISIBLE) && screen->pixels) {
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98 SDL_DrawCursorNoLock(screen);
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99 cursor_drawn = 1;
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100 screen_updated = 1;
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101 }
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102 }
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103 screen->pixels = saved_pixels;
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104
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105 /* Update the affected area of the screen */
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106 if (screen_updated) {
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107 SDL_MouseRect(&area);
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108 if (area.y < mouse_y1) {
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109 mouse_y1 = area.y;
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110 }
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111 if ((area.y + area.h) > mouse_y2) {
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112 mouse_y2 = area.y + area.h;
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113 }
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114 image = screen_image;
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115 image.y += screen->offset / screen->pitch + mouse_y1;
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116 image.h = mouse_y2 - mouse_y1;
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117 image.ptr = mapped_mem + (image.y - screen_image.y) * screen->pitch;
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118 ioctl(console_fd, PS2IOC_LOADIMAGE, &image);
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119
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120 /* Need to scale offscreen image to TV output */
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121 if (image.y > 0) {
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122 scaleimage_nonblock(console_fd, tex_tags_mem, scale_tags_mem);
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123 }
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124 }
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125
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126 /* We're finished */
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127 SDL_UnlockCursor();
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128 }
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129
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130 void
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131 GS_MoveWMCursor(_THIS, int x, int y)
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132 {
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133 GS_MoveCursor(this, SDL_cursor, x, y);
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134 }
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135
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136 int
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137 GS_ShowWMCursor(_THIS, WMcursor * wmcursor)
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138 {
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139 SDL_Cursor *cursor;
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140 int x, y;
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141
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142 /* Draw the cursor at the appropriate location */
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143 SDL_GetMouseState(&x, &y);
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144 if (wmcursor) {
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145 cursor = SDL_cursor;
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146 } else {
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147 cursor = NULL;
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148 }
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149 GS_MoveCursor(this, cursor, x, y);
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150 return (1);
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151 }
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152
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153 /* vi: set ts=4 sw=4 expandtab: */