Mercurial > sdl-ios-xcode
annotate src/video/xbios/SDL_xbiosmodes.c @ 3055:cd863dd2082b
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author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 07 Feb 2009 18:03:46 +0000 |
parents | 99210400e8b9 |
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rev | line source |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
2859 | 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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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 #include <mint/osbind.h> |
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24 #include <mint/falcon.h> |
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25 |
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26 #include "SDL_config.h" |
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27 #include "SDL_xbios.h" |
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28 #include "SDL_xbiosmodes.h" |
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29 |
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30 |
2120 | 31 typedef struct |
32 { | |
33 int width, height, bpp; | |
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34 int modecode; |
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35 int doubleline; |
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36 } xbios_mode_t; |
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37 |
2120 | 38 static xbios_mode_t falcon_rgb_modes[] = { |
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39 {768, 480, 16, BPS16 | COL80 | OVERSCAN | VERTFLAG}, |
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40 {768, 240, 16, BPS16 | COL80 | OVERSCAN}, |
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41 {640, 400, 16, BPS16 | COL80 | VERTFLAG}, |
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42 {640, 200, 16, BPS16 | COL80}, |
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43 {384, 480, 16, BPS16 | OVERSCAN | VERTFLAG}, |
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44 {384, 240, 16, BPS16 | OVERSCAN}, |
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45 {320, 400, 16, BPS16 | VERTFLAG}, |
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46 {320, 200, 16, BPS16}, |
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47 {768, 480, 8, BPS8 | COL80 | OVERSCAN | VERTFLAG}, |
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48 {768, 240, 8, BPS8 | COL80 | OVERSCAN}, |
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49 {640, 400, 8, BPS8 | COL80 | VERTFLAG}, |
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50 {640, 200, 8, BPS8 | COL80}, |
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51 {384, 480, 8, BPS8 | OVERSCAN | VERTFLAG}, |
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52 {384, 240, 8, BPS8 | OVERSCAN}, |
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53 {320, 400, 8, BPS8 | VERTFLAG}, |
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54 {320, 200, 8, BPS8} |
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55 }; |
2120 | 56 |
57 static xbios_mode_t falcon_vga_modes[] = { | |
58 {320, 480, 16, BPS16}, | |
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59 {320, 240, 16, BPS16 | VERTFLAG}, |
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60 {640, 480, 8, BPS8 | COL80}, |
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61 {640, 240, 8, BPS8 | COL80 | VERTFLAG}, |
2120 | 62 {320, 480, 8, BPS8}, |
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63 {320, 240, 8, BPS8 | VERTFLAG} |
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64 }; |
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65 |
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66 static void |
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67 SDL_XBIOS_AddMode(_THIS, int width, int height, int bpp, Uint16 modecode, |
2120 | 68 SDL_bool doubleline) |
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69 { |
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70 SDL_VideoDisplay display; |
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71 SDL_DisplayData *displaydata; |
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72 SDL_DisplayMode mode; |
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73 Uint32 Rmask, Gmask, Bmask, Amask; |
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74 int orig_bpp; |
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75 |
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76 Rmask = Gmask = Bmask = Amask = 0; |
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77 if (bpp == 16) { |
2120 | 78 Rmask = 31 << 11; |
79 Gmask = 63 << 5; | |
80 Bmask = 31; | |
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81 } |
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82 /* Memorize for c2p4 operation */ |
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83 orig_bpp = bpp; |
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84 if (bpp == 4) { |
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85 bpp = 8; |
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86 } |
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87 |
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88 mode.format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask); |
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89 mode.w = width; |
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90 mode.h = height; |
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91 mode.refresh_rate = 0; |
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92 mode.driverdata = NULL; |
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93 |
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94 displaydata = (SDL_DisplayData *) SDL_malloc(sizeof(*displaydata)); |
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95 if (!displaydata) { |
2120 | 96 return; |
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97 } |
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98 displaydata->modecode = modecode; |
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99 displaydata->doubleline = doubleline; |
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100 displaydata->c2p4 = (orig_bpp == 4); |
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101 |
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102 SDL_zero(display); |
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103 display.desktop_mode = mode; |
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104 display.current_mode = mode; |
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105 display.driverdata = displaydata; |
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106 SDL_AddVideoDisplay(&display); |
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107 } |
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108 |
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109 /* Current video mode save/restore */ |
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110 |
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111 static void |
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112 SDL_XBIOS_ModeSave(_THIS) |
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113 { |
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114 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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115 |
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116 data->old_vbase = Physbase(); |
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117 |
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118 switch (data->cookie_vdo >> 16) { |
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119 case VDO_ST: |
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120 case VDO_STE: |
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121 data->old_modecode = Getrez(); |
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122 break; |
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123 case VDO_TT: |
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124 data->old_modecode = EgetShift(); |
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125 break; |
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126 case VDO_F30: |
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127 data->old_modecode = VsetMode(-1); |
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128 break; |
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129 } |
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130 } |
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131 |
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132 static void |
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133 SDL_XBIOS_ModeRestore(_THIS) |
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134 { |
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135 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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136 |
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137 switch (data->cookie_vdo >> 16) { |
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138 case VDO_ST: |
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139 case VDO_STE: |
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140 Setscreen(-1, data->old_vbase, data->old_modecode); |
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141 break; |
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142 case VDO_TT: |
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143 Setscreen(-1, data->old_vbase, -1); |
2120 | 144 EsetShift(data->old_modecode); |
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145 break; |
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146 case VDO_F30: |
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147 Setscreen(-1, data->old_vbase, -1); |
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148 VsetMode(data->old_modecode); |
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149 break; |
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150 } |
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151 } |
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152 |
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153 /* Current palette save/restore */ |
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154 |
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155 static void |
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156 SDL_XBIOS_PaletteSave(_THIS) |
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157 { |
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158 int i; |
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159 Uint16 *palette; |
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160 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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161 |
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162 data->old_numcol = 0; |
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163 |
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164 switch (data->cookie_vdo >> 16) { |
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165 case VDO_ST: |
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166 case VDO_STE: |
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167 switch (data->old_modecode << 8) { |
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168 case ST_LOW: |
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169 data->old_numcol = 16; |
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170 break; |
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171 case ST_MED: |
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172 data->old_numcol = 4; |
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173 break; |
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174 case ST_HIGH: |
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175 data->old_numcol = 2; |
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176 break; |
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177 } |
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178 |
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179 palette = (Uint16 *) data->old_palette; |
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180 for (i = 0; i < data->old_numcol; i++) { |
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181 *palette++ = Setcolor(i, -1); |
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182 } |
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183 break; |
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184 case VDO_TT: |
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185 switch (data->old_modecode & ES_MODE) { |
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186 case TT_LOW: |
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187 data->old_numcol = 256; |
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188 break; |
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189 case ST_LOW: |
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190 case TT_MED: |
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191 data->old_numcol = 16; |
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192 break; |
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193 case ST_MED: |
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194 data->old_numcol = 4; |
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195 break; |
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196 case ST_HIGH: |
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197 case TT_HIGH: |
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198 data->old_numcol = 2; |
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|
199 break; |
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|
200 } |
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201 if (data->old_numcol) { |
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202 EgetPalette(0, data->old_numcol, data->old_palette); |
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|
203 } |
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|
204 break; |
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Patrice Mandin <patmandin@gmail.com>
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205 case VDO_F30: |
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206 data->old_numcol = 1 << (1 << (data->old_modecode & NUMCOLS)); |
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207 if (data->old_numcol > 256) { |
2120 | 208 data->old_numcol = 0; |
209 } else { | |
2073
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210 VgetRGB(0, data->old_numcol, data->old_palette); |
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|
211 } |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
212 break; |
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|
213 } |
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Patrice Mandin <patmandin@gmail.com>
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|
214 } |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
215 |
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|
216 static void |
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217 SDL_XBIOS_PaletteRestore(_THIS) |
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|
218 { |
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219 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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220 |
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221 if (data->old_numcol == 0) { |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
222 return; |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
223 } |
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Patrice Mandin <patmandin@gmail.com>
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|
224 |
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|
225 switch (data->cookie_vdo >> 16) { |
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|
226 case VDO_ST: |
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227 case VDO_STE: |
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228 Setpalette(data->old_palette); |
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|
229 break; |
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230 case VDO_TT: |
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231 EsetPalette(0, data->old_numcol, data->old_palette); |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
232 break; |
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|
233 case VDO_F30: |
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Patrice Mandin <patmandin@gmail.com>
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|
234 VsetRGB(0, data->old_numcol, data->old_palette); |
790726541708
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
235 break; |
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Patrice Mandin <patmandin@gmail.com>
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|
236 } |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
237 } |
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|
238 |
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|
239 /* Public functions for use by the driver */ |
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|
240 |
2072
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xbios: preliminary video mode init
Patrice Mandin <patmandin@gmail.com>
parents:
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|
241 void |
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|
242 SDL_XBIOS_InitModes(_THIS) |
4b3f98a9a2c1
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
243 { |
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|
244 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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245 |
2073
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246 SDL_XBIOS_PaletteSave(_this); |
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247 SDL_XBIOS_ModeSave(_this); |
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248 |
2072
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249 switch (data->cookie_vdo >> 16) { |
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250 case VDO_ST: |
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parents:
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|
251 case VDO_STE: |
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parents:
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|
252 { |
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|
253 SDL_XBIOS_AddMode(_this, 320, 200, 4, ST_LOW >> 8, SDL_FALSE); |
4b3f98a9a2c1
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parents:
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|
254 } |
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parents:
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|
255 break; |
4b3f98a9a2c1
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diff
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|
256 case VDO_TT: |
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Patrice Mandin <patmandin@gmail.com>
parents:
diff
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|
257 { |
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258 SDL_XBIOS_AddMode(_this, 320, 480, 8, TT_LOW, SDL_FALSE); |
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259 /* Software double-lined mode */ |
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parents:
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|
260 SDL_XBIOS_AddMode(_this, 320, 240, 8, TT_LOW, SDL_TRUE); |
4b3f98a9a2c1
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Patrice Mandin <patmandin@gmail.com>
parents:
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changeset
|
261 } |
4b3f98a9a2c1
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Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
262 break; |
4b3f98a9a2c1
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Patrice Mandin <patmandin@gmail.com>
parents:
diff
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|
263 case VDO_F30: |
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parents:
diff
changeset
|
264 { |
2120 | 265 Uint16 modecodemask = data->old_modecode & (VGA | PAL); |
2072
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|
266 int i; |
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|
267 |
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|
268 switch (VgetMonitor()) { |
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|
269 case MONITOR_MONO: |
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parents:
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|
270 /* Not usable */ |
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parents:
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|
271 break; |
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parents:
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|
272 case MONITOR_RGB: |
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Patrice Mandin <patmandin@gmail.com>
parents:
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|
273 case MONITOR_TV: |
2120 | 274 for (i = 0; |
275 i < sizeof(falcon_rgb_modes) / sizeof(xbios_mode_t); | |
276 i++) { | |
277 SDL_XBIOS_AddMode(_this, falcon_rgb_modes[i].width, | |
278 falcon_rgb_modes[i].height, | |
279 falcon_rgb_modes[i].bpp, | |
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280 falcon_rgb_modes[i].modecode & |
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281 modecodemask, SDL_FALSE); |
2120 | 282 } |
283 break; | |
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284 case MONITOR_VGA: |
2120 | 285 for (i = 0; |
286 i < sizeof(falcon_vga_modes) / sizeof(xbios_mode_t); | |
287 i++) { | |
288 SDL_XBIOS_AddMode(_this, falcon_vga_modes[i].width, | |
289 falcon_vga_modes[i].height, | |
290 falcon_vga_modes[i].bpp, | |
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291 falcon_vga_modes[i].modecode & |
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292 modecodemask, SDL_FALSE); |
2120 | 293 } |
294 break; | |
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295 } |
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296 } |
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297 break; |
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298 } |
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299 } |
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300 |
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301 void |
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302 SDL_XBIOS_GetDisplayModes(_THIS) |
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303 { |
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304 SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata; |
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305 SDL_DisplayMode mode; |
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306 //SDL_AddDisplayMode(_this->current_display, &mode); |
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307 } |
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308 |
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309 int |
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310 SDL_XBIOS_SetDisplayMode(_THIS, SDL_DisplayMode * mode) |
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311 { |
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312 //SDL_DisplayModeData *data = (SDL_DisplayModeData *) mode->driverdata; |
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313 return -1; |
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314 } |
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315 |
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316 void |
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317 SDL_XBIOS_QuitModes(_THIS) |
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318 { |
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319 SDL_XBIOS_ModeRestore(_this); |
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320 SDL_XBIOS_PaletteRestore(_this); |
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321 Vsync(); |
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322 } |
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323 |
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324 /* vi: set ts=4 sw=4 expandtab: */ |