annotate src/video/cybergfx/SDL_amigamouse.c @ 1052:68f607298ca9

Some work on using accelerated alpha blits with hardware surfaces. From Stephane Marchesin's fork, don't know who originally wrote it.
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 17 Apr 2005 10:40:41 +0000
parents b8d311d90021
children c9b51268668f
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 #include "SDL_error.h"
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29 #include "SDL_mouse.h"
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30 #include "SDL_events_c.h"
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31 #include "SDL_cursor_c.h"
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32 #include "SDL_amigamouse_c.h"
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33
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34
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35 /* The implementation dependent data for the window manager cursor */
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36
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37 typedef void * WMCursor;
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38
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39 void amiga_FreeWMCursor(_THIS, WMcursor *cursor)
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40 {
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41 }
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42
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43 WMcursor *amiga_CreateWMCursor(_THIS,
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44 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
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45 {
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46 return (WMcursor *)1; // Amiga has an Hardware cursor, so it's ok to return something unuseful but true
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47 }
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48
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49 int amiga_ShowWMCursor(_THIS, WMcursor *cursor)
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50 {
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51 /* Don't do anything if the display is gone */
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52 if ( SDL_Display == NULL) {
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53 return(0);
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54 }
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55
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56 /* Set the Amiga prefs cursor cursor, or blank if cursor is NULL */
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57
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58 if ( SDL_Window ) {
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59 SDL_Lock_EventThread();
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60 if ( cursor == NULL ) {
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61 if ( SDL_BlankCursor != NULL ) {
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62 // Hide cursor HERE
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63 SetPointer(SDL_Window,(UWORD *)SDL_BlankCursor,1,1,0,0);
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64 }
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65 } else {
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66 // Show cursor
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67 ClearPointer(SDL_Window);
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68 }
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69 SDL_Unlock_EventThread();
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70 }
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71 return(1);
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72 }
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73
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74 void amiga_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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75 {
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76 /* FIXME: Not implemented */
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77 }
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78
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79 /* Check to see if we need to enter or leave mouse relative mode */
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80 void amiga_CheckMouseMode(_THIS)
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81 {
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82 /* If the mouse is hidden and input is grabbed, we use relative mode */
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83 #if 0
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84 SDL_Lock_EventThread();
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85 if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
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86 (this->input_grab != SDL_GRAB_OFF) ) {
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87 mouse_relative = 1;
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88 X11_EnableDGAMouse(this);
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89 if ( ! (using_dga & DGA_MOUSE) ) {
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90 char *use_mouse_accel;
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91
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92 SDL_GetMouseState(&mouse_last.x, &mouse_last.y);
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93 /* Use as raw mouse mickeys as possible */
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94 XGetPointerControl(SDL_Display,
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95 &mouse_accel.numerator,
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96 &mouse_accel.denominator,
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97 &mouse_accel.threshold);
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98 use_mouse_accel = getenv("SDL_VIDEO_X11_MOUSEACCEL");
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99 if ( use_mouse_accel ) {
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100 SetMouseAccel(this, use_mouse_accel);
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101 }
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102 }
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103 } else {
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104 if ( mouse_relative ) {
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105 if ( using_dga & DGA_MOUSE ) {
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106 X11_DisableDGAMouse(this);
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107 } else {
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108 XChangePointerControl(SDL_Display, True, True,
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109 mouse_accel.numerator,
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110 mouse_accel.denominator,
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111 mouse_accel.threshold);
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112 }
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113 mouse_relative = 0;
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114 }
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115 }
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116 SDL_Unlock_EventThread();
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117 #endif
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118 }