annotate src/video/maccommon/SDL_macmouse.c @ 4340:0deabd35275b SDL-1.2

Use SDL's byte order check, just to be sure
author Sam Lantinga <slouken@libsdl.org>
date Fri, 16 Oct 2009 04:24:03 +0000
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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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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 #if defined(__APPLE__) && defined(__MACH__)
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25 #include <Carbon/Carbon.h>
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26 #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335)
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27 #include <Carbon.h>
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28 #else
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29 #include <Quickdraw.h>
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30 #endif
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31
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32 /* Routines that are not supported by the Carbon API... */
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33 #if !TARGET_API_MAC_CARBON
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34 #include <CursorDevices.h>
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35 #endif
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36
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37 #include "SDL_mouse.h"
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38 #include "SDL_macmouse_c.h"
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39
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40
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41 /* The implementation dependent data for the window manager cursor */
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42 struct WMcursor {
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43 Cursor curs;
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44 };
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45
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46
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47 void Mac_FreeWMCursor(_THIS, WMcursor *cursor)
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48 {
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49 SDL_free(cursor);
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50 }
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51
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52 WMcursor *Mac_CreateWMCursor(_THIS,
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53 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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54 {
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55 WMcursor *cursor;
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56 int row, bytes;
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57
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58 /* Allocate the cursor memory */
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59 cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor));
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60 if ( cursor == NULL ) {
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61 SDL_OutOfMemory();
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62 return(NULL);
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63 }
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64 SDL_memset(cursor, 0, sizeof(*cursor));
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65
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66 if (w > 16)
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67 w = 16;
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69 if (h > 16)
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70 h = 16;
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72 bytes = (w+7)/8;
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74 for ( row=0; row<h; ++row ) {
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75 SDL_memcpy(&cursor->curs.data[row], data, bytes);
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76 data += bytes;
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77 }
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78 for ( row=0; row<h; ++row ) {
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79 SDL_memcpy(&cursor->curs.mask[row], mask, bytes);
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80 mask += bytes;
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81 }
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82 cursor->curs.hotSpot.h = hot_x;
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83 cursor->curs.hotSpot.v = hot_y;
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84
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85 /* That was easy. :) */
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86 return(cursor);
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87 }
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88
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89 int Mac_cursor_showing = 1;
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90
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91 int Mac_ShowWMCursor(_THIS, WMcursor *cursor)
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92 {
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93 if ( cursor == NULL ) {
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94 if ( Mac_cursor_showing ) {
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95 HideCursor();
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96 Mac_cursor_showing = 0;
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97 }
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98 } else {
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99 SetCursor(&cursor->curs);
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100 if ( ! Mac_cursor_showing ) {
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101 ShowCursor();
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102 Mac_cursor_showing = 1;
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103 }
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104 }
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105 return(1);
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106 }
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107
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108 void Mac_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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109 {
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110 #if !TARGET_API_MAC_CARBON
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111 CursorDevice *cursordevice;
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112
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113 cursordevice = nil;
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114 CursorDeviceNextDevice(&cursordevice);
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115 if ( cursordevice != nil ) {
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116 WindowPtr saveport;
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117 Point where;
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118
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119 GetPort(&saveport);
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120 SetPort(SDL_Window);
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121 where.h = x;
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122 where.v = y;
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123 LocalToGlobal(&where);
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124 SetPort(saveport);
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125 CursorDeviceMoveTo(cursordevice, where.h, where.v);
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126 }
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127 #endif /* !TARGET_API_MAC_CARBON */
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128 }
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129