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annotate src/video/gem/SDL_gemmouse.c @ 889:eac8c69b5706

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ate: Fri, 09 Apr 2004 20:07:10 +0200 From: Hibernatus Subject: [SDL] BUG: changing video mode in opengl + windows In WIN_GL_SetupWindow (SDL12/src/video/wincommon/SDL_wingl.c) you call WIN_GL_ResetWindow when SetPixelFormat fails. WIN_GL_ResetWindow cannot properly work in its current state, because there are several things to update once you've created a new window. At least DirectInput doesn't work anymore here (which is somewhat annoying for the player :). I think you can simply remove that function. Many games don't try to recover from that exception, that's why the newest ATI drivers emulate 16 bpp display in 32 bpp mode so the error never occurs (but the games may run much slower). Having SDL_SetVideoMode return NULL would be better than actually setting the video mode and losing focus, directinput and maybe directsound too. It also made my previous drivers crash (when switching from 32 bpp windowed to 16 bpp fullscreen).
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 May 2004 18:02:48 +0000
parents b8d311d90021
children fdc7ef6ecab4
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /*
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29 * GEM Mouse manager
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30 *
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31 * Patrice Mandin
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32 */
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33
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34 #include <stdlib.h>
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35
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36 #include <gem.h>
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37
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38 #include "SDL_error.h"
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39 #include "SDL_mouse.h"
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40 #include "SDL_events_c.h"
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41 #include "SDL_cursor_c.h"
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42 #include "SDL_gemmouse_c.h"
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43
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44 /* Defines */
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45
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46 /*#define DEBUG_VIDEO_GEM 1*/
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47
281
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48 #define MAXCURWIDTH 16
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49 #define MAXCURHEIGHT 16
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50
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51 /* The implementation dependent data for the window manager cursor */
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52 struct WMcursor {
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53 MFORM *mform_p;
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54 };
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55
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56
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57 void GEM_FreeWMCursor(_THIS, WMcursor *cursor)
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58 {
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59 if (cursor == NULL)
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60 return;
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61
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62 graf_mouse(ARROW, NULL);
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63
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64 if (cursor->mform_p != NULL)
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65 free(cursor->mform_p);
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66
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67 free(cursor);
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68 }
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69
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70 WMcursor *GEM_CreateWMCursor(_THIS,
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71 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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72 {
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73 WMcursor *cursor;
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74 MFORM *new_mform;
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75 int i;
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76
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77 /* Check the size */
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78 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) {
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79 SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
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80 MAXCURWIDTH, MAXCURHEIGHT);
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81 return(NULL);
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82 }
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83
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84 /* Allocate the cursor memory */
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85 cursor = (WMcursor *)malloc(sizeof(WMcursor));
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86 if ( cursor == NULL ) {
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87 SDL_OutOfMemory();
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88 return(NULL);
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89 }
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90
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91 /* Allocate mform */
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92 new_mform = (MFORM *)malloc(sizeof(MFORM));
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93 if (new_mform == NULL) {
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94 free(cursor);
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95 SDL_OutOfMemory();
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96 return(NULL);
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97 }
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98
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99 cursor->mform_p = new_mform;
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100
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101 new_mform->mf_xhot = hot_x;
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102 new_mform->mf_yhot = hot_y;
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103 new_mform->mf_nplanes = 1;
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104 new_mform->mf_fg = 0;
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105 new_mform->mf_bg = 1;
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106
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107 for (i=0;i<MAXCURHEIGHT;i++) {
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108 new_mform->mf_mask[i]=0;
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109 new_mform->mf_data[i]=0;
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110 }
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111
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112 if (w<=8) {
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113 for (i=0;i<h;i++) {
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114 new_mform->mf_mask[i]= mask[i]<<8;
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115 new_mform->mf_data[i]= data[i]<<8;
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116 }
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117 } else {
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118 for (i=0;i<h;i++) {
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119 new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1];
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120 new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1];
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121 }
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122 }
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123
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124 #ifdef DEBUG_VIDEO_GEM
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125 for (i=0; i<h ;i++) {
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126 printf("sdl:video:gem: cursor, line %d = 0x%04x\n", i, new_mform->mf_mask[i]);
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127 }
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128
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129 printf("sdl:video:gem: CreateWMCursor(): done\n");
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130 #endif
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131
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132 return cursor;
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133 }
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134
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135 int GEM_ShowWMCursor(_THIS, WMcursor *cursor)
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136 {
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137 /*
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138 if (cursor == NULL) {
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139 graf_mouse(M_OFF, NULL);
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140 } else if (cursor->mform_p) {
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141 graf_mouse(USER_DEF, cursor->mform_p);
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142 }
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143 */
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144 #ifdef DEBUG_VIDEO_GEM
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145 printf("sdl:video:gem: ShowWMCursor(0x%08x)\n", (long) cursor);
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146 #endif
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147
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148 return 1;
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149 }
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150
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151 #if 0
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152 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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153 {
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154 /* This seems to work only on AES 3.4 (Falcon) */
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155
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156 EVNTREC warpevent;
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157
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158 warpevent.ap_event = APPEVNT_MOUSE;
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159 warpevent.ap_value = (x << 16) | y;
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160
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161 appl_tplay(&warpevent, 1, 1000);
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162 }
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163 #endif
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164
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165 void GEM_CheckMouseMode(_THIS)
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166 {
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167 /* If the mouse is hidden and input is grabbed, we use relative mode */
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168 if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
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169 (this->input_grab != SDL_GRAB_OFF) &&
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170 (SDL_GetAppState() & SDL_APPACTIVE) ) {
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171 GEM_mouse_relative = SDL_TRUE;
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172 } else {
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173 GEM_mouse_relative = SDL_FALSE;
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174 }
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175 }