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annotate src/video/cybergfx/SDL_cgxmodes.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents d910939febfa
children 4da1ee79c9af
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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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23
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24 /* Utilities for getting and setting the X display mode */
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25
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26 #include "SDL_timer.h"
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27 #include "SDL_events.h"
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28 #include "../../events/SDL_events_c.h"
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29 #include "SDL_cgxvideo.h"
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30 #include "SDL_cgxwm_c.h"
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31 #include "SDL_cgxmodes_c.h"
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32
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33 #define CGX_DEBUG
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34
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35 static void
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36 set_best_resolution (_THIS, int width, int height)
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37 {
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38 Uint32 idok;
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39 int depth = 8;
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40
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41 if (SDL_Display)
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42 depth =
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43 GetCyberMapAttr (SDL_Display->RastPort.BitMap, CYBRMATTR_DEPTH);
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44
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45 idok = BestCModeIDTags (CYBRBIDTG_NominalWidth, width,
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46 CYBRBIDTG_NominalHeight, height,
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47 CYBRBIDTG_Depth, depth, TAG_DONE);
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48
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49 if (idok != INVALID_ID) {
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50 if (SDL_Display) {
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51 if (currently_fullscreen)
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52 CloseScreen (SDL_Display);
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53 else
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54 UnlockPubScreen (NULL, SDL_Display);
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55 }
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56 SDL_Display = GFX_Display =
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57 OpenScreenTags (NULL, SA_Width, width, SA_Height, height,
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58 SA_Depth, depth, SA_DisplayID, idok,
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59 SA_ShowTitle, FALSE, TAG_DONE);
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60 }
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61 }
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62
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63 static void
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64 get_real_resolution (_THIS, int *w, int *h)
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65 {
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66 *w = /*SDL_Display->Width */ SDL_Window->Width - SDL_Window->BorderLeft -
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67 SDL_Window->BorderRight;
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68 *h = /*SDL_Display->Height */ SDL_Window->Height -
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69 SDL_Window->BorderBottom - SDL_Window->BorderTop;
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70 }
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71
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72 static void
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73 move_cursor_to (_THIS, int x, int y)
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74 {
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75 /* XWarpPointer(SDL_Display, None, SDL_Root, 0, 0, 0, 0, x, y); */
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76
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77 /* DA FARE! */
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78 }
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79
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80 static void
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81 add_visual (_THIS, int depth, int class)
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82 {
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83 Uint32 tID;
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84
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85 tID = BestCModeIDTags (CYBRBIDTG_Depth, depth,
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86 CYBRBIDTG_NominalWidth, 640,
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87 CYBRBIDTG_NominalHeight, 480, TAG_DONE);
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88
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89 if (tID != INVALID_ID) {
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90 int n = this->hidden->nvisuals;
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91
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92 this->hidden->visuals[n].depth = depth;
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93 this->hidden->visuals[n].visual = tID;
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94 this->hidden->visuals[n].bpp = GetCyberIDAttr (CYBRIDATTR_BPPIX, tID);
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95 this->hidden->nvisuals++;
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96 }
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97 }
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98
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99 #define TrueColor 1
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100 #define PseudoColor 2
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101
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102 int
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103 CGX_GetVideoModes (_THIS)
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104 {
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105 int i;
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106 ULONG nextid;
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107 int nmodes = 0;
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108
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109 SDL_modelist = NULL;
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110
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111 nextid = NextDisplayInfo (INVALID_ID);
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112
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113 while (nextid != INVALID_ID) {
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114 if (IsCyberModeID (nextid)) {
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115 DisplayInfoHandle h;
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116
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117 if (h = FindDisplayInfo (nextid)) {
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118 struct DimensionInfo info;
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119
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120 if (GetDisplayInfoData
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121 (h, (char *) &info, sizeof (struct DimensionInfo),
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122 DTAG_DIMS, NULL)) {
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123 int ok = 0;
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124
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125 for (i = 0; i < nmodes; i++) {
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126 if (SDL_modelist[i]->w == (info.Nominal.MaxX + 1)
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127 && SDL_modelist[i]->h == (info.Nominal.MaxY + 1))
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128 ok = 1;
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129 }
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130
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131 if (!ok) {
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132 nmodes++;
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133
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134 SDL_modelist =
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135 (SDL_Rect **) SDL_realloc (SDL_modelist,
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136 (nmodes +
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137 1) *
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138 sizeof (SDL_Rect *));
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139 SDL_modelist[nmodes] = NULL;
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140
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141 if (SDL_modelist) {
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142 SDL_modelist[nmodes - 1] = (SDL_Rect *)
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143 SDL_malloc (sizeof (SDL_Rect));
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144
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145 if (SDL_modelist[nmodes - 1] == NULL)
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146 break;
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147
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148 SDL_modelist[nmodes - 1]->x = 0;
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149 SDL_modelist[nmodes - 1]->y = 0;
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150 SDL_modelist[nmodes - 1]->w =
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151 info.Nominal.MaxX + 1;
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152 SDL_modelist[nmodes - 1]->h =
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153 info.Nominal.MaxY + 1;
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154 }
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155 }
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156 }
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157 }
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158 }
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159 nextid = NextDisplayInfo (nextid);
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160 }
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161
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162
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163 this->hidden->nvisuals = 0;
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164 /* Search for the visuals in deepest-first order, so that the first
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165 will be the richest one */
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166 add_visual (this, 32, TrueColor);
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167 add_visual (this, 24, TrueColor);
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168 add_visual (this, 16, TrueColor);
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169 add_visual (this, 15, TrueColor);
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170 add_visual (this, 8, PseudoColor);
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171
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172 if (this->hidden->nvisuals == 0) {
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173 SDL_SetError ("Found no sufficiently capable CGX visuals");
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174 return -1;
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175 }
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176
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177 if (SDL_modelist == NULL) {
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178 SDL_modelist =
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179 (SDL_Rect **) SDL_malloc ((1 + 1) * sizeof (SDL_Rect *));
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180 i = 0;
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181 if (SDL_modelist) {
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182 SDL_modelist[i] = (SDL_Rect *) SDL_malloc (sizeof (SDL_Rect));
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183 if (SDL_modelist[i]) {
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184 SDL_modelist[i]->x = 0;
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185 SDL_modelist[i]->y = 0;
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186 SDL_modelist[i]->w = SDL_Display->Width;
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187 SDL_modelist[i]->h = SDL_Display->Height;
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188 ++i;
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189 }
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190 SDL_modelist[i] = NULL;
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191 }
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192 }
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193
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194 D (if (SDL_modelist) {
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195 bug ("CGX video mode list: (%ld)\n", nmodes);
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196 for (i = 0; SDL_modelist[i]; ++i) {
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197 bug ("\t%ld x %ld\n", SDL_modelist[i]->w, SDL_modelist[i]->h);}
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198 }
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199 );
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200
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201 D ( {
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202 bug ("CGX visuals list: (%ld)\n", this->hidden->nvisuals);
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203 for (i = 0; i < this->hidden->nvisuals; i++)
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204 bug ("\t%lx - depth: %ld bpp: %ld\n",
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205 this->hidden->visuals[i].visual,
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206 this->hidden->visuals[i].depth, this->hidden->visuals[i].bpp);}
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207 );
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208 return 0;
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209 }
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210
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211 int
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212 CGX_SupportedVisual (_THIS, SDL_PixelFormat * format)
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213 {
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214 int i;
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215 for (i = 0; i < this->hidden->nvisuals; i++) {
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216 if (this->hidden->visuals[i].depth == format->BitsPerPixel) // Era bpp
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217 return 1;
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218 }
0
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219 return 0;
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220 }
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221
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222 SDL_Rect **
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223 CGX_ListModes (_THIS, SDL_PixelFormat * format, Uint32 flags)
0
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224 {
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225 if (CGX_SupportedVisual (this, format)) {
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226 if (flags & SDL_FULLSCREEN) {
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227 return (SDL_modelist);
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228 } else {
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229 return ((SDL_Rect **) - 1);
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230 }
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231 } else {
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232 return ((SDL_Rect **) 0);
0
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233 }
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234 }
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235
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236 void
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237 CGX_FreeVideoModes (_THIS)
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238 {
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239 int i;
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240
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241 if (SDL_modelist) {
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242 for (i = 0; SDL_modelist[i]; ++i) {
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243 SDL_free (SDL_modelist[i]);
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244 }
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245 SDL_free (SDL_modelist);
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246 SDL_modelist = NULL;
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247 }
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248 }
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249
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250 int
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251 CGX_ResizeFullScreen (_THIS)
0
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252 {
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253 int x, y;
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254 int real_w, real_h;
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255
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256 if (currently_fullscreen) {
0
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257 /* Per ora non faccio nulla qui */
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258 }
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259 return (1);
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260 }
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261
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262 void
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263 _QueueEnterFullScreen (_THIS)
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264 {
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265 }
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266
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267 int
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268 CGX_EnterFullScreen (_THIS)
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269 {
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270 int okay;
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271 Uint32 saved_flags;
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272
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273 okay = 1;
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274 saved_flags = this->screen->flags;
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275
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276 if (!currently_fullscreen) {
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277 int real_w, real_h;
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278
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279 /* Map the fullscreen window to blank the screen */
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280 get_real_resolution (this, &real_w, &real_h);
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281
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282 CGX_DestroyWindow (this, this->screen);
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283 set_best_resolution (this, real_w, real_h);
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284
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285 currently_fullscreen = 1;
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286 this->screen->flags = saved_flags;
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287
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288 CGX_CreateWindow (this, this->screen, real_w, real_h,
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289 GetCyberMapAttr (SDL_Display->RastPort.BitMap,
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290 CYBRMATTR_DEPTH),
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291 this->screen->flags);
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292
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293 /* Set the new resolution */
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294 okay = CGX_ResizeFullScreen (this);
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295 if (!okay) {
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296 CGX_LeaveFullScreen (this);
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297 }
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298 /* Set the colormap */
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299 /*
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300 if ( SDL_XColorMap ) {
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301 XInstallColormap(SDL_Display, SDL_XColorMap);
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302 }
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303 */
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304 }
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305 // CGX_GrabInputNoLock(this, this->input_grab | SDL_GRAB_FULLSCREEN);
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306 return (okay);
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307 }
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308
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309 int
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310 CGX_LeaveFullScreen (_THIS)
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311 {
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312 if (currently_fullscreen) {
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313 int width, height;
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314 if (SDL_Window) {
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315 CloseWindow (SDL_Window);
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316 SDL_Window = NULL;
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317 }
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318 CloseScreen (SDL_Display);
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319
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320 GFX_Display = SDL_Display = LockPubScreen (NULL);
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321
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322 currently_fullscreen = 0;
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323
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324 CGX_CreateWindow (this, this->screen, this->screen->w,
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325 this->screen->h,
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326 GetCyberMapAttr (SDL_Display->RastPort.BitMap,
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327 CYBRMATTR_DEPTH),
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328 this->screen->flags);
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329 CGX_ResizeImage (this, this->screen, 0L);
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330 }
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331
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332 return (0);
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333 }
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334
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335 /* vi: set ts=4 sw=4 expandtab: */