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annotate src/video/ataricommon/SDL_xbiosinterrupt.S @ 1164:10b3fb28c86b

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Date: Mon, 31 Oct 2005 14:23:34 +0100 From: Thomas Omilian <paccy@arcor.de> To: sdl@libsdl.org Subject: [SDL] SDL_SoftStretch() fixed! Ok, after debugging the night I found the error: in video/SDL_stretch.c in Line 81 /* See if we need to regenerate the copy buffer */ if ( (src_w == last.src_w) && (dst_w == last.src_w) && (bpp == last.bpp) ) { return(0); } the second comparison should be (dst_w == last dst_w). Perhaps someone could apply it to the source... Regards, Thomas Omilian
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 01 Nov 2005 04:14:24 +0000
parents 0fb50bfaea7f
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, 1998, 1999, 2000, 2001, 2002 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 * XBIOS mouse & joystick vectors
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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 .text
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35
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36 .globl _SDL_AtariXbios_Install
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37 .globl _SDL_AtariXbios_Restore
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38 .globl _SDL_AtariXbios_MouseVector
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39 .globl _SDL_AtariXbios_JoystickVector
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40
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41 .globl _SDL_AtariXbios_mouseb
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42 .globl _SDL_AtariXbios_mousex
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43 .globl _SDL_AtariXbios_mousey
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44 .globl _SDL_AtariXbios_joystick
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45
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46 /*--- Vector installer ---*/
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47
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48 _SDL_AtariXbios_Install:
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49 movel sp@(4),a0
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50
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51 /* Stop interrupts */
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52
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53 movew #0x2700,sr
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54
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55 /* Save old mouse vector, set our routine */
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56
820
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57 clrl oldmousevector
305
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58 movel sp@(8),d0
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59 beqs no_new_mouse_vector
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60 movel a0@(16),oldmousevector
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61 movel d0,a0@(16)
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62 no_new_mouse_vector:
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63
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64 /* Save old joystick vector, set our routine */
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65
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66 clrl oldjoystickvector
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67 movel sp@(12),d0
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68 beqs no_new_joystick_vector
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69 movel a0@(24),oldjoystickvector
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70 movel d0,a0@(24)
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71 no_new_joystick_vector:
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72
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73 /* Restart interrupts */
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74
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75 movew #0x2300,sr
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76
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77 rts
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78
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79 /*--- Vector restorer ---*/
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80
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81 _SDL_AtariXbios_Restore:
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82 movel sp@(4),a0
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83
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84 /* Stop interrupts */
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85
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86 movew #0x2700,sr
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87
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88 /* Restore mouse vector */
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89
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90 movel oldmousevector,d0
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91 beqs no_restore_mouse
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92 movel d0,a0@(16)
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93 no_restore_mouse:
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94
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95 /* Restore joystick vector */
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96
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97 movel oldjoystickvector,d0
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98 beqs no_restore_joystick
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99 movel d0,a0@(24)
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100 no_restore_joystick:
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101
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102 /* Restart interrupts */
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103
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104 movew #0x2300,sr
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105
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106 rts
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107
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108 /*--- Our mouse vector ---*/
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109
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110 .text
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111 .even
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112 .ascii "XBRA"
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113 .ascii "LSDL"
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114 .comm oldmousevector,4*1
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115 _SDL_AtariXbios_MouseVector:
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116 movel d0,sp@-
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117
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118 /* Mouse buttons */
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119 moveb (a0),d0
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120 andw #3,d0
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121 movew d0,_SDL_AtariXbios_mouseb
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122
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123 /* X movement */
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124 moveb a0@(1),d0
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125 extw d0
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126 addw d0,_SDL_AtariXbios_mousex
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127
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128 /* Y movement */
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129 moveb a0@(2),d0
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130 extw d0
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131 addw d0,_SDL_AtariXbios_mousey
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132
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133 /* Jump through old vector */
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134 movel sp@+,d0
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135
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136 movel oldmousevector,sp@-
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137 rts
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138
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139 .data
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140 .even
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141 .comm _SDL_AtariXbios_mousex,2*1
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142 .even
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143 .comm _SDL_AtariXbios_mousey,2*1
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144 .even
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145 .comm _SDL_AtariXbios_mouseb,2*1
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146
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147 /*--- Our joystick vector ---*/
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148
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149 .text
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150 .even
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151 .ascii "XBRA"
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152 .ascii "LSDL"
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153 .comm oldjoystickvector,4*1
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154 _SDL_AtariXbios_JoystickVector:
987
d9f3b5bb7870 Do not use registers when not necessary
Patrice Mandin <patmandin@gmail.com>
parents: 820
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155 movel d0,sp@-
305
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156
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157 /* New joystick state */
1063
0fb50bfaea7f Used wrong offset in joystick packet
Patrice Mandin <patmandin@gmail.com>
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158 moveb a0@(2),d0
305
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159 andw #0x8f,d0
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160 movew d0,_SDL_AtariXbios_joystick
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161
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162 /* Jump through old vector */
987
d9f3b5bb7870 Do not use registers when not necessary
Patrice Mandin <patmandin@gmail.com>
parents: 820
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163 movel sp@+,d0
305
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164
987
d9f3b5bb7870 Do not use registers when not necessary
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parents: 820
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165 movel oldjoystickvector,sp@-
305
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166 rts
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167
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168 .data
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169 .even
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170 .comm _SDL_AtariXbios_joystick,2*1