annotate src/video/SDL_cursor.c @ 3932:cd5b5c52a37e SDL-1.2

Const correctness patch for SDL_MapRGB and SDL_MapRGBA. Fixes Bugzilla #421.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 04 Apr 2007 09:40:40 +0000
parents 37dab4a917c4
children 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 /* General cursor handling code for SDL */
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25
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26 #include "SDL_mutex.h"
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27 #include "SDL_video.h"
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28 #include "SDL_mouse.h"
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29 #include "SDL_blit.h"
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30 #include "SDL_sysvideo.h"
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31 #include "SDL_cursor_c.h"
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32 #include "SDL_pixels_c.h"
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33 #include "default_cursor.h"
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34 #include "../events/SDL_sysevents.h"
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35 #include "../events/SDL_events_c.h"
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36
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37 /* These are static for our cursor handling code */
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38 volatile int SDL_cursorstate = CURSOR_VISIBLE;
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39 SDL_Cursor *SDL_cursor = NULL;
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40 static SDL_Cursor *SDL_defcursor = NULL;
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41 SDL_mutex *SDL_cursorlock = NULL;
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42
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43 /* Public functions */
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44 void SDL_CursorQuit(void)
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45 {
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46 if ( SDL_cursor != NULL ) {
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47 SDL_Cursor *cursor;
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48
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49 SDL_cursorstate &= ~CURSOR_VISIBLE;
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50 if ( SDL_cursor != SDL_defcursor ) {
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51 SDL_FreeCursor(SDL_cursor);
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52 }
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53 SDL_cursor = NULL;
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54 if ( SDL_defcursor != NULL ) {
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55 cursor = SDL_defcursor;
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56 SDL_defcursor = NULL;
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57 SDL_FreeCursor(cursor);
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58 }
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59 }
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60 if ( SDL_cursorlock != NULL ) {
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61 SDL_DestroyMutex(SDL_cursorlock);
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62 SDL_cursorlock = NULL;
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63 }
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64 }
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65 int SDL_CursorInit(Uint32 multithreaded)
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66 {
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67 /* We don't have mouse focus, and the cursor isn't drawn yet */
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68 #ifndef IPOD
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69 SDL_cursorstate = CURSOR_VISIBLE;
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70 #endif
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71
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72 /* Create the default cursor */
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73 if ( SDL_defcursor == NULL ) {
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74 SDL_defcursor = SDL_CreateCursor(default_cdata, default_cmask,
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75 DEFAULT_CWIDTH, DEFAULT_CHEIGHT,
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76 DEFAULT_CHOTX, DEFAULT_CHOTY);
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77 SDL_SetCursor(SDL_defcursor);
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78 }
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79
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80 /* Create a lock if necessary */
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81 if ( multithreaded ) {
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82 SDL_cursorlock = SDL_CreateMutex();
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83 }
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84
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85 /* That's it! */
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86 return(0);
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87 }
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88
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89 /* Multi-thread support for cursors */
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90 #ifndef SDL_LockCursor
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91 void SDL_LockCursor(void)
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92 {
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93 if ( SDL_cursorlock ) {
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94 SDL_mutexP(SDL_cursorlock);
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95 }
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96 }
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97 #endif
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98 #ifndef SDL_UnlockCursor
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99 void SDL_UnlockCursor(void)
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100 {
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101 if ( SDL_cursorlock ) {
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102 SDL_mutexV(SDL_cursorlock);
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103 }
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104 }
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105 #endif
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106
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107 /* Software cursor drawing support */
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108 SDL_Cursor * SDL_CreateCursor (Uint8 *data, Uint8 *mask,
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109 int w, int h, int hot_x, int hot_y)
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110 {
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111 SDL_VideoDevice *video = current_video;
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112 int savelen;
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113 int i;
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114 SDL_Cursor *cursor;
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115
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116 /* Make sure the width is a multiple of 8 */
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117 w = ((w+7)&~7);
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118
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119 /* Sanity check the hot spot */
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120 if ( (hot_x < 0) || (hot_y < 0) || (hot_x >= w) || (hot_y >= h) ) {
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121 SDL_SetError("Cursor hot spot doesn't lie within cursor");
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122 return(NULL);
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123 }
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124
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125 /* Allocate memory for the cursor */
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126 cursor = (SDL_Cursor *)SDL_malloc(sizeof *cursor);
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127 if ( cursor == NULL ) {
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128 SDL_OutOfMemory();
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129 return(NULL);
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130 }
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131 savelen = (w*4)*h;
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132 cursor->area.x = 0;
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133 cursor->area.y = 0;
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134 cursor->area.w = w;
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135 cursor->area.h = h;
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136 cursor->hot_x = hot_x;
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137 cursor->hot_y = hot_y;
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138 cursor->data = (Uint8 *)SDL_malloc((w/8)*h*2);
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139 cursor->mask = cursor->data+((w/8)*h);
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140 cursor->save[0] = (Uint8 *)SDL_malloc(savelen*2);
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141 cursor->save[1] = cursor->save[0] + savelen;
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142 cursor->wm_cursor = NULL;
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143 if ( ! cursor->data || ! cursor->save[0] ) {
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144 SDL_FreeCursor(cursor);
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145 SDL_OutOfMemory();
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146 return(NULL);
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147 }
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148 for ( i=((w/8)*h)-1; i>=0; --i ) {
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149 cursor->data[i] = data[i];
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150 cursor->mask[i] = mask[i] | data[i];
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151 }
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152 SDL_memset(cursor->save[0], 0, savelen*2);
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153
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154 /* If the window manager gives us a good cursor, we're done! */
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155 if ( video->CreateWMCursor ) {
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156 cursor->wm_cursor = video->CreateWMCursor(video, data, mask,
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157 w, h, hot_x, hot_y);
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158 } else {
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159 cursor->wm_cursor = NULL;
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160 }
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161 return(cursor);
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162 }
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163
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164 /* SDL_SetCursor(NULL) can be used to force the cursor redraw,
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165 if this is desired for any reason. This is used when setting
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166 the video mode and when the SDL window gains the mouse focus.
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167 */
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168 void SDL_SetCursor (SDL_Cursor *cursor)
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169 {
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170 SDL_VideoDevice *video = current_video;
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171 SDL_VideoDevice *this = current_video;
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172
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173 /* Make sure that the video subsystem has been initialized */
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174 if ( ! video ) {
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175 return;
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176 }
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177
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178 /* Prevent the event thread from moving the mouse */
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179 SDL_LockCursor();
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180
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181 /* Set the new cursor */
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182 if ( cursor && (cursor != SDL_cursor) ) {
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183 /* Erase the current mouse position */
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184 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) {
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185 SDL_EraseCursor(SDL_VideoSurface);
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186 } else if ( video->MoveWMCursor ) {
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187 /* If the video driver is moving the cursor directly,
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188 it needs to hide the old cursor before (possibly)
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189 showing the new one. (But don't erase NULL cursor)
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190 */
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191 if ( SDL_cursor && video->ShowWMCursor ) {
0
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192 video->ShowWMCursor(this, NULL);
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193 }
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194 }
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195 SDL_cursor = cursor;
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196 }
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197
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198 /* Draw the new mouse cursor */
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199 if ( SDL_cursor && (SDL_cursorstate&CURSOR_VISIBLE) ) {
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200 /* Use window manager cursor if possible */
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201 int show_wm_cursor = 0;
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202 if ( SDL_cursor->wm_cursor && video->ShowWMCursor ) {
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203 show_wm_cursor = video->ShowWMCursor(this, SDL_cursor->wm_cursor);
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204 }
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205 if ( show_wm_cursor ) {
0
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206 SDL_cursorstate &= ~CURSOR_USINGSW;
1296
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207 } else {
0
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208 SDL_cursorstate |= CURSOR_USINGSW;
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209 if ( video->ShowWMCursor ) {
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210 video->ShowWMCursor(this, NULL);
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211 }
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212 { int x, y;
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213 SDL_GetMouseState(&x, &y);
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214 SDL_cursor->area.x = (x - SDL_cursor->hot_x);
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215 SDL_cursor->area.y = (y - SDL_cursor->hot_y);
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216 }
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217 SDL_DrawCursor(SDL_VideoSurface);
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218 }
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219 } else {
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220 /* Erase window manager mouse (cursor not visible) */
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221 if ( SDL_cursor && (SDL_cursorstate & CURSOR_USINGSW) ) {
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222 SDL_EraseCursor(SDL_VideoSurface);
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223 } else {
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224 if ( video ) {
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225 if ( video->ShowWMCursor ) {
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226 video->ShowWMCursor(this, NULL);
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227 }
0
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228 }
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229 }
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230 }
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231 SDL_UnlockCursor();
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232 }
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233
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234 SDL_Cursor * SDL_GetCursor (void)
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235 {
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236 return(SDL_cursor);
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237 }
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238
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239 void SDL_FreeCursor (SDL_Cursor *cursor)
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240 {
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241 if ( cursor ) {
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242 if ( cursor == SDL_cursor ) {
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243 SDL_SetCursor(SDL_defcursor);
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244 }
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245 if ( cursor != SDL_defcursor ) {
77
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parents: 1
diff changeset
246 SDL_VideoDevice *video = current_video;
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247 SDL_VideoDevice *this = current_video;
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248
0
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249 if ( cursor->data ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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250 SDL_free(cursor->data);
0
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251 }
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252 if ( cursor->save[0] ) {
1336
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253 SDL_free(cursor->save[0]);
0
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254 }
77
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255 if ( video && cursor->wm_cursor ) {
3897
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diff changeset
256 if ( video->FreeWMCursor ) {
37dab4a917c4 Check video driver mouse cursor pointers before using them
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257 video->FreeWMCursor(this, cursor->wm_cursor);
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258 }
0
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259 }
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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260 SDL_free(cursor);
0
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261 }
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262 }
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263 }
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264
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265 int SDL_ShowCursor (int toggle)
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266 {
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267 int showing;
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268
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269 showing = (SDL_cursorstate & CURSOR_VISIBLE);
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diff changeset
270 if ( toggle >= 0 ) {
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271 SDL_LockCursor();
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272 if ( toggle ) {
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273 SDL_cursorstate |= CURSOR_VISIBLE;
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274 } else {
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275 SDL_cursorstate &= ~CURSOR_VISIBLE;
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276 }
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277 SDL_UnlockCursor();
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278 if ( (SDL_cursorstate & CURSOR_VISIBLE) != showing ) {
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279 SDL_VideoDevice *video = current_video;
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280 SDL_VideoDevice *this = current_video;
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281
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282 SDL_SetCursor(NULL);
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diff changeset
283 if ( video && video->CheckMouseMode ) {
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diff changeset
284 video->CheckMouseMode(this);
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285 }
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286 }
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diff changeset
287 } else {
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288 /* Query current state */ ;
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diff changeset
289 }
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290 return(showing ? 1 : 0);
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diff changeset
291 }
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diff changeset
292
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diff changeset
293 void SDL_WarpMouse (Uint16 x, Uint16 y)
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diff changeset
294 {
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295 SDL_VideoDevice *video = current_video;
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296 SDL_VideoDevice *this = current_video;
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diff changeset
297
595
591b438ab94a Don't warp the mouse when a video mode hasn't been set
Sam Lantinga <slouken@libsdl.org>
parents: 527
diff changeset
298 if ( !video || !SDL_PublicSurface ) {
591b438ab94a Don't warp the mouse when a video mode hasn't been set
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parents: 527
diff changeset
299 SDL_SetError("A video mode must be set before warping mouse");
591b438ab94a Don't warp the mouse when a video mode hasn't been set
Sam Lantinga <slouken@libsdl.org>
parents: 527
diff changeset
300 return;
591b438ab94a Don't warp the mouse when a video mode hasn't been set
Sam Lantinga <slouken@libsdl.org>
parents: 527
diff changeset
301 }
591b438ab94a Don't warp the mouse when a video mode hasn't been set
Sam Lantinga <slouken@libsdl.org>
parents: 527
diff changeset
302
527
5c74ac147358 Fixed mouse warp position bug with offset video modes
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
303 /* If we have an offset video mode, offset the mouse coordinates */
1163
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
304 if (this->screen->pitch == 0) {
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
305 x += this->screen->offset / this->screen->format->BytesPerPixel;
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
306 y += this->screen->offset;
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
307 } else {
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
308 x += (this->screen->offset % this->screen->pitch) /
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
309 this->screen->format->BytesPerPixel;
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
310 y += (this->screen->offset / this->screen->pitch);
96ef83467667 Prevent division-by-zero in WarpMouse if surface's pitch is zero (a GL surface?).
Ryan C. Gordon <icculus@icculus.org>
parents: 1140
diff changeset
311 }
527
5c74ac147358 Fixed mouse warp position bug with offset video modes
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
312
0
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diff changeset
313 /* This generates a mouse motion event */
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parents:
diff changeset
314 if ( video->WarpWMCursor ) {
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diff changeset
315 video->WarpWMCursor(this, x, y);
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diff changeset
316 } else {
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diff changeset
317 SDL_PrivateMouseMotion(0, 0, x, y);
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parents:
diff changeset
318 }
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diff changeset
319 }
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diff changeset
320
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diff changeset
321 void SDL_MoveCursor(int x, int y)
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parents:
diff changeset
322 {
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diff changeset
323 SDL_VideoDevice *video = current_video;
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diff changeset
324
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diff changeset
325 /* Erase and update the current mouse position */
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parents:
diff changeset
326 if ( SHOULD_DRAWCURSOR(SDL_cursorstate) ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327 /* Erase and redraw mouse cursor in new position */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 SDL_LockCursor();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 SDL_EraseCursor(SDL_VideoSurface);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330 SDL_cursor->area.x = (x - SDL_cursor->hot_x);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331 SDL_cursor->area.y = (y - SDL_cursor->hot_y);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332 SDL_DrawCursor(SDL_VideoSurface);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 SDL_UnlockCursor();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334 } else if ( video->MoveWMCursor ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 video->MoveWMCursor(video, x, y);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339 /* Keep track of the current cursor colors */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 static int palette_changed = 1;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
341 static Uint8 pixels8[2];
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
343 void SDL_CursorPaletteChanged(void)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345 palette_changed = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348 void SDL_MouseRect(SDL_Rect *area)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
350 int clip_diff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
351
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
352 *area = SDL_cursor->area;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353 if ( area->x < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 area->w += area->x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
355 area->x = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
356 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 if ( area->y < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
358 area->h += area->y;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
359 area->y = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 clip_diff = (area->x+area->w)-SDL_VideoSurface->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
362 if ( clip_diff > 0 ) {
113
e21ac1dd30f1 Fixed crash if mouse is outside of the screen bounds for some reason
Sam Lantinga <slouken@lokigames.com>
parents: 77
diff changeset
363 area->w = area->w < clip_diff ? 0 : area->w-clip_diff;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 clip_diff = (area->y+area->h)-SDL_VideoSurface->h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 if ( clip_diff > 0 ) {
113
e21ac1dd30f1 Fixed crash if mouse is outside of the screen bounds for some reason
Sam Lantinga <slouken@lokigames.com>
parents: 77
diff changeset
367 area->h = area->h < clip_diff ? 0 : area->h-clip_diff;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 static void SDL_DrawCursorFast(SDL_Surface *screen, SDL_Rect *area)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374 int i, w, h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 Uint8 *data, datab;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 Uint8 *mask, maskb;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
377
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 data = SDL_cursor->data + area->y * SDL_cursor->area.w/8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379 mask = SDL_cursor->mask + area->y * SDL_cursor->area.w/8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 switch (screen->format->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 case 1: {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
383 Uint8 *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384 int dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 if ( palette_changed ) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
387 pixels8[0] = (Uint8)SDL_MapRGB(screen->format, 255, 255, 255);
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
388 pixels8[1] = (Uint8)SDL_MapRGB(screen->format, 0, 0, 0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 palette_changed = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 dst = (Uint8 *)screen->pixels +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 (SDL_cursor->area.y+area->y)*screen->pitch +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 SDL_cursor->area.x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 dstskip = screen->pitch-area->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396 for ( h=area->h; h; h-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 for ( w=area->w/8; w; w-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 maskb = *mask++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 datab = *data++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 for ( i=0; i<8; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 if ( maskb & 0x80 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 *dst = pixels8[datab>>7];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 maskb <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 datab <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 dst++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 case 2: {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 Uint16 *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 int dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 dst = (Uint16 *)screen->pixels +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 (SDL_cursor->area.y+area->y)*screen->pitch/2 +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 SDL_cursor->area.x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
421 dstskip = (screen->pitch/2)-area->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
423 for ( h=area->h; h; h-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
424 for ( w=area->w/8; w; w-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 maskb = *mask++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 datab = *data++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
427 for ( i=0; i<8; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428 if ( maskb & 0x80 ) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
429 *dst = (Uint16)pixels[datab>>7];
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
430 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 maskb <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432 datab <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
433 dst++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
435 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
438 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
439 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
440
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
441 case 3: {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
442 Uint8 *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443 int dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445 dst = (Uint8 *)screen->pixels +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446 (SDL_cursor->area.y+area->y)*screen->pitch +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
447 SDL_cursor->area.x*3;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
448 dstskip = screen->pitch-area->w*3;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
449
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
450 for ( h=area->h; h; h-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
451 for ( w=area->w/8; w; w-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
452 maskb = *mask++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
453 datab = *data++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
454 for ( i=0; i<8; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
455 if ( maskb & 0x80 ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
456 SDL_memset(dst,pixels[datab>>7],3);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
458 maskb <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
459 datab <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
460 dst += 3;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
461 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
463 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
464 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
465 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
466 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
467
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
468 case 4: {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
469 Uint32 *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
470 int dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
471
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
472 dst = (Uint32 *)screen->pixels +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
473 (SDL_cursor->area.y+area->y)*screen->pitch/4 +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
474 SDL_cursor->area.x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
475 dstskip = (screen->pitch/4)-area->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
476
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477 for ( h=area->h; h; h-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
478 for ( w=area->w/8; w; w-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
479 maskb = *mask++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
480 datab = *data++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 for ( i=0; i<8; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482 if ( maskb & 0x80 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
483 *dst = pixels[datab>>7];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
485 maskb <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486 datab <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
487 dst++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
488 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
490 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
491 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
492 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
493 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
494 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
496
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
497 static void SDL_DrawCursorSlow(SDL_Surface *screen, SDL_Rect *area)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
498 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
499 const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500 int h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
501 int x, minx, maxx;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
502 Uint8 *data, datab = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
503 Uint8 *mask, maskb = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
504 Uint8 *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505 int dstbpp, dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
507 data = SDL_cursor->data + area->y * SDL_cursor->area.w/8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
508 mask = SDL_cursor->mask + area->y * SDL_cursor->area.w/8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509 dstbpp = screen->format->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
510 dst = (Uint8 *)screen->pixels +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
511 (SDL_cursor->area.y+area->y)*screen->pitch +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 SDL_cursor->area.x*dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513 dstskip = screen->pitch-SDL_cursor->area.w*dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515 minx = area->x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 maxx = area->x+area->w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 if ( screen->format->BytesPerPixel == 1 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 if ( palette_changed ) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
519 pixels8[0] = (Uint8)SDL_MapRGB(screen->format, 255, 255, 255);
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
520 pixels8[1] = (Uint8)SDL_MapRGB(screen->format, 0, 0, 0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 palette_changed = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 for ( h=area->h; h; h-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 for ( x=0; x<SDL_cursor->area.w; ++x ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 if ( (x%8) == 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 maskb = *mask++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527 datab = *data++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
529 if ( (x >= minx) && (x < maxx) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530 if ( maskb & 0x80 ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
531 SDL_memset(dst, pixels8[datab>>7], dstbpp);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
534 maskb <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
535 datab <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
540 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541 for ( h=area->h; h; h-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
542 for ( x=0; x<SDL_cursor->area.w; ++x ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
543 if ( (x%8) == 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
544 maskb = *mask++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
545 datab = *data++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
546 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
547 if ( (x >= minx) && (x < maxx) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
548 if ( maskb & 0x80 ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
549 SDL_memset(dst, pixels[datab>>7], dstbpp);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
550 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552 maskb <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553 datab <<= 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
554 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
555 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
556 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
557 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
558 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
559 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
560
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
561 /* This handles the ugly work of converting the saved cursor background from
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
562 the pixel format of the shadow surface to that of the video surface.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
563 This is only necessary when blitting from a shadow surface of a different
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564 pixel format than the video surface, and using a software rendered cursor.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
565 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566 static void SDL_ConvertCursorSave(SDL_Surface *screen, int w, int h)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
567 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
568 SDL_BlitInfo info;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
569 SDL_loblit RunBlit;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
570
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
571 /* Make sure we can steal the blit mapping */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
572 if ( screen->map->dst != SDL_VideoSurface ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
573 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
574 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
575
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
576 /* Set up the blit information */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
577 info.s_pixels = SDL_cursor->save[1];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
578 info.s_width = w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
579 info.s_height = h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
580 info.s_skip = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
581 info.d_pixels = SDL_cursor->save[0];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
582 info.d_width = w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
583 info.d_height = h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
584 info.d_skip = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
585 info.aux_data = screen->map->sw_data->aux_data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
586 info.src = screen->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
587 info.table = screen->map->table;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
588 info.dst = SDL_VideoSurface->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
589 RunBlit = screen->map->sw_data->blit;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
590
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
591 /* Run the actual software blit */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
592 RunBlit(&info);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
593 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
594
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595 void SDL_DrawCursorNoLock(SDL_Surface *screen)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
596 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
597 SDL_Rect area;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
598
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
599 /* Get the mouse rectangle, clipped to the screen */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
600 SDL_MouseRect(&area);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
601 if ( (area.w == 0) || (area.h == 0) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
602 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
603 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
604
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
605 /* Copy mouse background */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
606 { int w, h, screenbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
607 Uint8 *src, *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
608
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
609 /* Set up the copy pointers */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
610 screenbpp = screen->format->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
611 if ( (screen == SDL_VideoSurface) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
612 FORMAT_EQUAL(screen->format, SDL_VideoSurface->format) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
613 dst = SDL_cursor->save[0];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
614 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
615 dst = SDL_cursor->save[1];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
616 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
617 src = (Uint8 *)screen->pixels + area.y * screen->pitch +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
618 area.x * screenbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
619
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
620 /* Perform the copy */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
621 w = area.w*screenbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
622 h = area.h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
623 while ( h-- ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
624 SDL_memcpy(dst, src, w);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
625 dst += w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
626 src += screen->pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
627 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
628 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
629
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
630 /* Draw the mouse cursor */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
631 area.x -= SDL_cursor->area.x;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
632 area.y -= SDL_cursor->area.y;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
633 if ( (area.x == 0) && (area.w == SDL_cursor->area.w) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
634 SDL_DrawCursorFast(screen, &area);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
635 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
636 SDL_DrawCursorSlow(screen, &area);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
637 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
638 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
639
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
640 void SDL_DrawCursor(SDL_Surface *screen)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
641 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
642 /* Lock the screen if necessary */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
643 if ( screen == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
644 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
645 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
646 if ( SDL_MUSTLOCK(screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
647 if ( SDL_LockSurface(screen) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
648 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
649 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
650 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
651
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
652 SDL_DrawCursorNoLock(screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
653
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
654 /* Unlock the screen and update if necessary */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
655 if ( SDL_MUSTLOCK(screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
656 SDL_UnlockSurface(screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
657 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
658 if ( (screen == SDL_VideoSurface) &&
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
659 ((screen->flags & SDL_HWSURFACE) != SDL_HWSURFACE) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
660 SDL_VideoDevice *video = current_video;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
661 SDL_VideoDevice *this = current_video;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
662 SDL_Rect area;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
663
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
664 SDL_MouseRect(&area);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
665
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
666 /* This can be called before a video mode is set */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
667 if ( video->UpdateRects ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
668 video->UpdateRects(this, 1, &area);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
669 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
670 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
671 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
672
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
673 void SDL_EraseCursorNoLock(SDL_Surface *screen)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
674 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
675 SDL_Rect area;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
676
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
677 /* Get the mouse rectangle, clipped to the screen */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
678 SDL_MouseRect(&area);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
679 if ( (area.w == 0) || (area.h == 0) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
680 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
681 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
682
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
683 /* Copy mouse background */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
684 { int w, h, screenbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
685 Uint8 *src, *dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
686
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
687 /* Set up the copy pointers */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
688 screenbpp = screen->format->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
689 if ( (screen == SDL_VideoSurface) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
690 FORMAT_EQUAL(screen->format, SDL_VideoSurface->format) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
691 src = SDL_cursor->save[0];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
692 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
693 src = SDL_cursor->save[1];
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
694 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
695 dst = (Uint8 *)screen->pixels + area.y * screen->pitch +
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
696 area.x * screenbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
697
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
698 /* Perform the copy */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
699 w = area.w*screenbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
700 h = area.h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
701 while ( h-- ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
702 SDL_memcpy(dst, src, w);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
703 src += w;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
704 dst += screen->pitch;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
705 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
706
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
707 /* Perform pixel conversion on cursor background */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
708 if ( src > SDL_cursor->save[1] ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
709 SDL_ConvertCursorSave(screen, area.w, area.h);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
710 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
711 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
712 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
713
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
714 void SDL_EraseCursor(SDL_Surface *screen)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
715 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
716 /* Lock the screen if necessary */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
717 if ( screen == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
718 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
719 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
720 if ( SDL_MUSTLOCK(screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
721 if ( SDL_LockSurface(screen) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
722 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
723 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
724 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
725
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
726 SDL_EraseCursorNoLock(screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
727
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
728 /* Unlock the screen and update if necessary */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
729 if ( SDL_MUSTLOCK(screen) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
730 SDL_UnlockSurface(screen);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
731 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
732 if ( (screen == SDL_VideoSurface) &&
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
733 ((screen->flags & SDL_HWSURFACE) != SDL_HWSURFACE) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
734 SDL_VideoDevice *video = current_video;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
735 SDL_VideoDevice *this = current_video;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
736 SDL_Rect area;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
737
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
738 SDL_MouseRect(&area);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
739 if ( video->UpdateRects ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
740 video->UpdateRects(this, 1, &area);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
741 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
742 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
743 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
744
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
745 /* Reset the cursor on video mode change
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
746 FIXME: Keep track of all cursors, and reset them all.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
747 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
748 void SDL_ResetCursor(void)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
749 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
750 int savelen;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
751
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
752 if ( SDL_cursor ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
753 savelen = SDL_cursor->area.w*4*SDL_cursor->area.h;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
754 SDL_cursor->area.x = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
755 SDL_cursor->area.y = 0;
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
756 SDL_memset(SDL_cursor->save[0], 0, savelen);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
757 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
758 }