annotate src/video/svga/SDL_svgavideo.c @ 67:3647c809813d

Support for SVGALib 2.0, thanks to Benjamin Joel Stover
author Sam Lantinga <slouken@lokigames.com>
date Sat, 16 Jun 2001 01:32:09 +0000
parents cf2af46e9e2a
children 13161d3d349d
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 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@devolution.com
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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 /* SVGAlib based SDL video driver implementation.
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29 */
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30
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31 #include <stdlib.h>
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32 #include <stdio.h>
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33 #include <unistd.h>
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34 #include <sys/stat.h>
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35 #include <sys/types.h>
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36 #include <sys/ioctl.h>
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37 #include <fcntl.h>
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38
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39 #if defined(linux)
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40 #include <linux/vt.h>
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41 #elif defined(__FreeBSD__)
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42 #include <sys/consio.h>
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43 #else
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44 #error You must choose your operating system here
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45 #endif
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46 #include <vga.h>
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47 #include <vgamouse.h>
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48 #include <vgakeyboard.h>
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49
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50 #include "SDL.h"
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51 #include "SDL_error.h"
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52 #include "SDL_video.h"
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53 #include "SDL_mouse.h"
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54 #include "SDL_sysvideo.h"
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55 #include "SDL_pixels_c.h"
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56 #include "SDL_events_c.h"
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57 #include "SDL_svgavideo.h"
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58 #include "SDL_svgaevents_c.h"
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59 #include "SDL_svgamouse_c.h"
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60
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61
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62 /* Initialization/Query functions */
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63 static int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat);
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64 static SDL_Rect **SVGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
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65 static SDL_Surface *SVGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
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66 static int SVGA_SetColors(_THIS, int firstcolor, int ncolors,
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67 SDL_Color *colors);
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68 static void SVGA_VideoQuit(_THIS);
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69
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70 /* Hardware surface functions */
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71 static int SVGA_AllocHWSurface(_THIS, SDL_Surface *surface);
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72 static int SVGA_LockHWSurface(_THIS, SDL_Surface *surface);
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73 static int SVGA_FlipHWSurface(_THIS, SDL_Surface *surface);
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74 static void SVGA_UnlockHWSurface(_THIS, SDL_Surface *surface);
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75 static void SVGA_FreeHWSurface(_THIS, SDL_Surface *surface);
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76
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77 /* SVGAlib driver bootstrap functions */
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78
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79 static int SVGA_Available(void)
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80 {
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81 /* Check to see if we are root and stdin is a virtual console */
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82 int console;
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83
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84 /* SVGALib 1.9.x+ doesn't require root (via /dev/svga) */
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85 int svgalib2 = -1;
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86
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87 /* See if we are connected to a virtual terminal */
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88 console = STDIN_FILENO;
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89 if ( console >= 0 ) {
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90 struct stat sb;
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91 struct vt_mode dummy;
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92
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93 if ( (fstat(console, &sb) < 0) ||
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94 (ioctl(console, VT_GETMODE, &dummy) < 0) ) {
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95 console = -1;
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96 }
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97 }
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98
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99 /* See if SVGAlib 2.0 is available */
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100 svgalib2 = open("/dev/svga", O_RDONLY);
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101 if (svgalib2 != -1) {
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102 close(svgalib2);
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103 }
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104
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105 return(((svgalib2 != -1) || (geteuid() == 0)) && (console >= 0));
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106 }
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107
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108 static void SVGA_DeleteDevice(SDL_VideoDevice *device)
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109 {
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110 free(device->hidden);
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111 free(device);
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112 }
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113
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114 static SDL_VideoDevice *SVGA_CreateDevice(int devindex)
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115 {
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116 SDL_VideoDevice *device;
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117
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118 /* Initialize all variables that we clean on shutdown */
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119 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
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120 if ( device ) {
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121 memset(device, 0, (sizeof *device));
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122 device->hidden = (struct SDL_PrivateVideoData *)
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123 malloc((sizeof *device->hidden));
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124 }
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125 if ( (device == NULL) || (device->hidden == NULL) ) {
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126 SDL_OutOfMemory();
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127 if ( device ) {
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128 free(device);
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129 }
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130 return(0);
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131 }
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132 memset(device->hidden, 0, (sizeof *device->hidden));
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133
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134 /* Set the function pointers */
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135 device->VideoInit = SVGA_VideoInit;
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136 device->ListModes = SVGA_ListModes;
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137 device->SetVideoMode = SVGA_SetVideoMode;
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138 device->SetColors = SVGA_SetColors;
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139 device->UpdateRects = NULL;
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140 device->VideoQuit = SVGA_VideoQuit;
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141 device->AllocHWSurface = SVGA_AllocHWSurface;
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142 device->CheckHWBlit = NULL;
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143 device->FillHWRect = NULL;
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144 device->SetHWColorKey = NULL;
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145 device->SetHWAlpha = NULL;
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146 device->LockHWSurface = SVGA_LockHWSurface;
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147 device->UnlockHWSurface = SVGA_UnlockHWSurface;
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148 device->FlipHWSurface = NULL;
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149 device->FreeHWSurface = SVGA_FreeHWSurface;
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150 device->SetCaption = NULL;
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151 device->SetIcon = NULL;
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152 device->IconifyWindow = NULL;
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153 device->GrabInput = NULL;
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154 device->GetWMInfo = NULL;
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155 device->InitOSKeymap = SVGA_InitOSKeymap;
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156 device->PumpEvents = SVGA_PumpEvents;
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157
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158 device->free = SVGA_DeleteDevice;
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159
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160 return device;
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161 }
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162
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parents:
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163 VideoBootStrap SVGALIB_bootstrap = {
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diff changeset
164 "svgalib", "SVGAlib",
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165 SVGA_Available, SVGA_CreateDevice
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166 };
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167
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168 static int SVGA_AddMode(_THIS, int mode, int actually_add, int force)
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169 {
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170 vga_modeinfo *modeinfo;
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171
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172 modeinfo = vga_getmodeinfo(mode);
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173 if ( force || ( modeinfo->flags & CAPABLE_LINEAR ) ) {
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diff changeset
174 int i, j;
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diff changeset
175
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176 i = modeinfo->bytesperpixel-1;
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177 if ( actually_add ) {
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178 SDL_Rect saved_rect[2];
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179 int saved_mode[2];
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180 int b;
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diff changeset
181
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parents:
diff changeset
182 /* Add the mode, sorted largest to smallest */
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183 b = 0;
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184 j = 0;
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185 while ( (SDL_modelist[i][j]->w > modeinfo->width) ||
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parents:
diff changeset
186 (SDL_modelist[i][j]->h > modeinfo->height) ) {
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187 ++j;
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188 }
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parents:
diff changeset
189 /* Skip modes that are already in our list */
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190 if ( (SDL_modelist[i][j]->w == modeinfo->width) &&
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parents:
diff changeset
191 (SDL_modelist[i][j]->h == modeinfo->height) ) {
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192 return(0);
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193 }
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parents:
diff changeset
194 /* Insert the new mode */
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195 saved_rect[b] = *SDL_modelist[i][j];
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196 saved_mode[b] = SDL_vgamode[i][j];
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197 SDL_modelist[i][j]->w = modeinfo->width;
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198 SDL_modelist[i][j]->h = modeinfo->height;
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199 SDL_vgamode[i][j] = mode;
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200 /* Everybody scoot down! */
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parents:
diff changeset
201 if ( saved_rect[b].w && saved_rect[b].h ) {
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parents:
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202 for ( ++j; SDL_modelist[i][j]->w; ++j ) {
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203 saved_rect[!b] = *SDL_modelist[i][j];
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204 saved_mode[!b] = SDL_vgamode[i][j];
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205 *SDL_modelist[i][j] = saved_rect[b];
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206 SDL_vgamode[i][j] = saved_mode[b];
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207 b = !b;
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208 }
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209 *SDL_modelist[i][j] = saved_rect[b];
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210 SDL_vgamode[i][j] = saved_mode[b];
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211 }
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212 } else {
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213 ++SDL_nummodes[i];
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parents:
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214 }
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215 }
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216 return( force || ( modeinfo->flags & CAPABLE_LINEAR ) );
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217 }
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diff changeset
218
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219 static void SVGA_UpdateVideoInfo(_THIS)
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diff changeset
220 {
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diff changeset
221 vga_modeinfo *modeinfo;
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diff changeset
222
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223 this->info.wm_available = 0;
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diff changeset
224 this->info.hw_available = 1;
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225 modeinfo = vga_getmodeinfo(vga_getcurrentmode());
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diff changeset
226 this->info.video_mem = (modeinfo->maxpixels/1024);
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parents:
diff changeset
227 if ( modeinfo->bytesperpixel > 0 ) {
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diff changeset
228 this->info.video_mem *= modeinfo->bytesperpixel;
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diff changeset
229 }
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parents:
diff changeset
230 /* FIXME: Add hardware accelerated blit information */
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parents:
diff changeset
231 #if 0
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232 printf("Hardware accelerated blit: %savailable\n", modeinfo->haveblit ? "" : "not ");
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diff changeset
233 #endif
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parents:
diff changeset
234 }
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parents:
diff changeset
235
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diff changeset
236 int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat)
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parents:
diff changeset
237 {
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parents:
diff changeset
238 int keyboard;
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parents:
diff changeset
239 int i, j;
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parents:
diff changeset
240 int mode, total_modes;
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parents:
diff changeset
241
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parents:
diff changeset
242 /* Initialize all variables that we clean on shutdown */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 for ( i=0; i<NUM_MODELISTS; ++i ) {
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parents:
diff changeset
244 SDL_nummodes[i] = 0;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 SDL_modelist[i] = NULL;
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parents:
diff changeset
246 SDL_vgamode[i] = NULL;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 }
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parents:
diff changeset
248
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parents:
diff changeset
249 /* Initialize the library */
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parents:
diff changeset
250 vga_disabledriverreport();
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parents:
diff changeset
251 if ( vga_init() < 0 ) {
74212992fb08 Initial revision
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parents:
diff changeset
252 SDL_SetError("Unable to initialize SVGAlib");
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parents:
diff changeset
253 return(-1);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 vga_setmode(TEXT);
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parents:
diff changeset
256
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parents:
diff changeset
257 /* Enable mouse and keyboard support */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 vga_setmousesupport(1);
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parents:
diff changeset
259 keyboard = keyboard_init_return_fd();
74212992fb08 Initial revision
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parents:
diff changeset
260 if ( keyboard < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 SDL_SetError("Unable to initialize keyboard");
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 return(-1);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 if ( SVGA_initkeymaps(keyboard) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 keyboard_seteventhandler(SVGA_keyboardcallback);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 /* Determine the screen depth (use default 8-bit depth) */
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parents:
diff changeset
270 vformat->BitsPerPixel = 8;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 /* Enumerate the available fullscreen modes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 total_modes = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 for ( mode=vga_lastmodenumber(); mode; --mode ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 if ( vga_hasmode(mode) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 if ( SVGA_AddMode(this, mode, 0, 0) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 ++total_modes;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 if ( SVGA_AddMode(this, G320x200x256, 0, 1) ) ++total_modes;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 if ( total_modes == 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 SDL_SetError("No linear video modes available");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 for ( i=0; i<NUM_MODELISTS; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 SDL_vgamode[i] = (int *)malloc(SDL_nummodes[i]*sizeof(int));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 if ( SDL_vgamode[i] == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 SDL_OutOfMemory();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 SDL_modelist[i] = (SDL_Rect **)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 malloc((SDL_nummodes[i]+1)*sizeof(SDL_Rect *));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 if ( SDL_modelist[i] == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 SDL_OutOfMemory();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 for ( j=0; j<SDL_nummodes[i]; ++j ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 SDL_modelist[i][j]=(SDL_Rect *)malloc(sizeof(SDL_Rect));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 if ( SDL_modelist[i][j] == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 SDL_OutOfMemory();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 SDL_modelist[i][j] = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 for ( mode=vga_lastmodenumber(); mode; --mode ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 if ( vga_hasmode(mode) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 SVGA_AddMode(this, mode, 1, 0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 SVGA_AddMode(this, G320x200x256, 1, 1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 /* Free extra (duplicated) modes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 for ( i=0; i<NUM_MODELISTS; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 j = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 while ( SDL_modelist[i][j] && SDL_modelist[i][j]->w ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 j++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 while ( SDL_modelist[i][j] ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 free(SDL_modelist[i][j]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 SDL_modelist[i][j] = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324 j++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 /* Fill in our hardware acceleration capabilities */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 SVGA_UpdateVideoInfo(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331 /* We're done! */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332 return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 SDL_Rect **SVGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 /* Various screen update functions available */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
341 static void SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342 static void SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect *rects);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
343
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344 SDL_Surface *SVGA_SetVideoMode(_THIS, SDL_Surface *current,
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345 int width, int height, int bpp, Uint32 flags)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347 int mode;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348 int vgamode;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 vga_modeinfo *modeinfo;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
350
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
351 /* Try to set the requested linear video mode */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
352 bpp = (bpp+7)/8-1;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353 for ( mode=0; SDL_modelist[bpp][mode]; ++mode ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 if ( (SDL_modelist[bpp][mode]->w == width) &&
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
355 (SDL_modelist[bpp][mode]->h == height) ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
356 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
358 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
359 if ( SDL_modelist[bpp][mode] == NULL ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360 SDL_SetError("Couldn't find requested mode in list");
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 return(NULL);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
362 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 vga_setmode(SDL_vgamode[bpp][mode]);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364 vga_setpage(0);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 vgamode=SDL_vgamode[bpp][mode];
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 if ((vga_setlinearaddressing()<0) && (vgamode!=G320x200x256)) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 SDL_SetError("Unable to set linear addressing");
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 return(NULL);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 modeinfo = vga_getmodeinfo(SDL_vgamode[bpp][mode]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 /* Update hardware acceleration info */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374 SVGA_UpdateVideoInfo(this);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 /* Allocate the new pixel format for the screen */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
377 bpp = (bpp+1)*8;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 if ( (bpp == 16) && (modeinfo->colors == 32768) ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379 bpp = 15;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 return(NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
383 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385 /* Set up the new mode framebuffer */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
387 if ( bpp == 8 ) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
388 /* FIXME: What about DirectColor? */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
389 current->flags |= SDL_HWPALETTE;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
390 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 current->w = width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 current->h = height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 current->pitch = modeinfo->linewidth;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 current->pixels = vga_getgraphmem();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396 /* Set the blit function */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 this->UpdateRects = SVGA_DirectUpdate;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 /* Set up the mouse handler again (buggy SVGAlib 1.40) */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 mouse_seteventhandler(SVGA_mousecallback);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 /* We're done */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 return(current);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 /* We don't actually allow hardware surfaces other than the main one */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 static int SVGA_AllocHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 static void SVGA_FreeHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 /* We need to wait for vertical retrace on page flipped displays */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417 static int SVGA_LockHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 if ( (surface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 vga_waitretrace();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
421 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422 return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
423 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
424 static void SVGA_UnlockHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
427 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429 /* FIXME: How is this done with SVGAlib? */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
430 static int SVGA_FlipHWSurface(_THIS, SDL_Surface *surface)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432 return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
433 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
435 static void SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
438 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
439
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
440 /* FIXME: Can this be used under SVGAlib? */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
441 static void SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect *rects)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
442 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443 return;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446 int SVGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
447 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
448 int i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
449
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
450 for(i = 0; i < ncolors; i++) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
451 vga_setpalette(firstcolor + i,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
452 colors[i].r>>2,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
453 colors[i].g>>2,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
454 colors[i].b>>2);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
455 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
456 return(1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
458
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
459 /* Note: If we are terminated, this could be called in the middle of
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
460 another SDL video routine -- notably UpdateRects.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
461 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 void SVGA_VideoQuit(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
463 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
464 int i, j;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
465
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
466 /* Reset the console video mode */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
467 if ( this->screen && (this->screen->w && this->screen->h) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
468 vga_setmode(TEXT);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
469 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
470 keyboard_close();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
471
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
472 /* Free video mode lists */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
473 for ( i=0; i<NUM_MODELISTS; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
474 if ( SDL_modelist[i] != NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
475 for ( j=0; SDL_modelist[i][j]; ++j )
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
476 free(SDL_modelist[i][j]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477 free(SDL_modelist[i]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
478 SDL_modelist[i] = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
479 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
480 if ( SDL_vgamode[i] != NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 free(SDL_vgamode[i]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482 SDL_vgamode[i] = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
483 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
485 if ( this->screen && (this->screen->flags & SDL_HWSURFACE) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486 /* Direct screen access, no memory buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
487 this->screen->pixels = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
488 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489 }