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annotate src/video/ataricommon/SDL_biosevents.c @ 4165:3b8ac3d311a2 SDL-1.2

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Hello. This patch provides basic support for video on the Sony PS3 Linux framebuffer. Scaling, format-conversion, and drawing is done from the SPEs, so there is little performance impact to PPE applications. This is by no means production quality code, but it is a very good start and a good example of how to use the PS3's hardware capabilities to accelerate video playback on the box. The driver has been verified to work with ffplay, mplayer and xine. This piece of software has been developed at the IBM R&D Lab in Boeblingen, Germany and is now returned to the community. Enjoy ! Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
author Sam Lantinga <slouken@libsdl.org>
date Thu, 02 Apr 2009 04:06:55 +0000
parents a1b03ba2fcd0
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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24 /*
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25 * Atari keyboard events manager, using BIOS
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26 *
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27 * Patrice Mandin
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28 */
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29
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30 /* Mint includes */
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31 #include <mint/osbind.h>
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32 #include <mint/cookie.h>
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33
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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 #include "SDL_atarikeys.h"
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38 #include "SDL_atarievents_c.h"
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39 #include "SDL_xbiosevents_c.h"
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40 #include "SDL_ataridevmouse_c.h"
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41
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42 static unsigned char bios_currentkeyboard[ATARIBIOS_MAXKEYS];
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43 static unsigned char bios_previouskeyboard[ATARIBIOS_MAXKEYS];
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44 static SDL_bool use_dev_mouse = SDL_FALSE;
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45
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46 static void UpdateSpecialKeys(int special_keys_state);
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47
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48 void AtariBios_InitOSKeymap(_THIS)
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49 {
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50 int i, vectors_mask;
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51 unsigned long dummy;
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52
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53 SDL_memset(bios_currentkeyboard, 0, sizeof(bios_currentkeyboard));
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54 SDL_memset(bios_previouskeyboard, 0, sizeof(bios_previouskeyboard));
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55
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56 use_dev_mouse = (SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE;
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57
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58 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
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59 if (!use_dev_mouse) {
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60 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
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61 }
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62 /* if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
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63 vectors_mask = 0;
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64 }*/
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65
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66 SDL_AtariXbios_InstallVectors(vectors_mask);
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67 }
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68
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69 void AtariBios_PumpEvents(_THIS)
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70 {
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71 int i;
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72 SDL_keysym keysym;
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73
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74 /* Update pressed keys */
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75 SDL_memset(bios_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
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76
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77 while (Bconstat(_CON)) {
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78 unsigned long key_pressed;
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79 key_pressed=Bconin(_CON);
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80 bios_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF;
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81 }
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82
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83 /* Read special keys */
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84 UpdateSpecialKeys(Kbshift(-1));
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85
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86 /* Now generate events */
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87 for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
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88 /* Key pressed ? */
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89 if (bios_currentkeyboard[i] && !bios_previouskeyboard[i])
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90 SDL_PrivateKeyboard(SDL_PRESSED,
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91 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
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92
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93 /* Key unpressed ? */
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94 if (bios_previouskeyboard[i] && !bios_currentkeyboard[i])
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95 SDL_PrivateKeyboard(SDL_RELEASED,
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96 SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
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97 }
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98
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99 if (use_dev_mouse) {
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100 SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE);
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101 } else {
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102 SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE);
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103 }
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105 /* Will be previous table */
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106 SDL_memcpy(bios_previouskeyboard, bios_currentkeyboard, sizeof(bios_previouskeyboard));
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107 }
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108
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109 static void UpdateSpecialKeys(int special_keys_state)
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110 {
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111 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
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112 { \
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113 if (special_keys_state & (1<<(numbit))) { \
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114 bios_currentkeyboard[scancode]=0xFF; \
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115 } \
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116 }
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117
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118 UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
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119 UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
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120 UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
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121 UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
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122 UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
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123 }
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124
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125 void AtariBios_ShutdownEvents(void)
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126 {
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127 SDL_AtariXbios_RestoreVectors();
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128 if (use_dev_mouse) {
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129 SDL_AtariDevMouse_Close();
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130 }
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131 }