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annotate src/video/svga/SDL_svgavideo.c @ 1668:4da1ee79c9af SDL-1.3

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more tweaking indent options
author Sam Lantinga <slouken@libsdl.org>
date Mon, 29 May 2006 04:04:35 +0000
parents 782fd950bd46
children
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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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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 #include "SDL_config.h"
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23
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24 /* SVGAlib based SDL video driver implementation.
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25 */
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26
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27 #include <unistd.h>
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28 #include <sys/stat.h>
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29 #include <sys/types.h>
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30 #include <sys/ioctl.h>
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31 #include <fcntl.h>
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32
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33 #if defined(__LINUX__)
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34 #include <linux/vt.h>
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35 #elif defined(__FREEBSD__)
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36 #include <sys/consio.h>
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37 #else
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38 #error You must choose your operating system here
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39 #endif
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40 #include <vga.h>
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41 #include <vgamouse.h>
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42 #include <vgakeyboard.h>
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43
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44 #include "SDL_video.h"
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45 #include "SDL_mouse.h"
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46 #include "../SDL_sysvideo.h"
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47 #include "../SDL_pixels_c.h"
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48 #include "../../events/SDL_events_c.h"
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49 #include "SDL_svgavideo.h"
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50 #include "SDL_svgaevents_c.h"
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51 #include "SDL_svgamouse_c.h"
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52
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53 /* Initialization/Query functions */
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54 static int SVGA_VideoInit(_THIS, SDL_PixelFormat * vformat);
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55 static SDL_Rect **SVGA_ListModes(_THIS, SDL_PixelFormat * format,
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56 Uint32 flags);
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57 static SDL_Surface *SVGA_SetVideoMode(_THIS, SDL_Surface * current,
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58 int width, int height, int bpp,
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59 Uint32 flags);
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60 static int SVGA_SetColors(_THIS, int firstcolor, int ncolors,
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61 SDL_Color * colors);
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62 static void SVGA_VideoQuit(_THIS);
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63
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64 /* Hardware surface functions */
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65 static int SVGA_AllocHWSurface(_THIS, SDL_Surface * surface);
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66 static int SVGA_LockHWSurface(_THIS, SDL_Surface * surface);
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67 static int SVGA_FlipHWSurface(_THIS, SDL_Surface * surface);
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68 static void SVGA_UnlockHWSurface(_THIS, SDL_Surface * surface);
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69 static void SVGA_FreeHWSurface(_THIS, SDL_Surface * surface);
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70
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71 /* SVGAlib driver bootstrap functions */
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72
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73 static int
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74 SVGA_Available(void)
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75 {
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76 /* Check to see if we are root and stdin is a virtual console */
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77 int console;
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78
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79 /* SVGALib 1.9.x+ doesn't require root (via /dev/svga) */
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80 int svgalib2 = -1;
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81
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82 /* See if we are connected to a virtual terminal */
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83 console = STDIN_FILENO;
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84 #if 0 /* This is no longer needed, SVGAlib can switch consoles for us */
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85 if (console >= 0) {
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86 struct stat sb;
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87 struct vt_mode dummy;
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88
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89 if ((fstat(console, &sb) < 0) ||
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90 (ioctl(console, VT_GETMODE, &dummy) < 0)) {
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91 console = -1;
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92 }
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93 }
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94 #endif /* 0 */
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95
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96 /* See if SVGAlib 2.0 is available */
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97 svgalib2 = open("/dev/svga", O_RDONLY);
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98 if (svgalib2 != -1) {
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99 close(svgalib2);
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100 }
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101
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102 return (((svgalib2 != -1) || (geteuid() == 0)) && (console >= 0));
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103 }
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104
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105 static void
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106 SVGA_DeleteDevice(SDL_VideoDevice * device)
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107 {
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108 SDL_free(device->hidden);
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109 SDL_free(device);
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110 }
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111
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112 static SDL_VideoDevice *
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113 SVGA_CreateDevice(int devindex)
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114 {
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115 SDL_VideoDevice *device;
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116
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117 /* Initialize all variables that we clean on shutdown */
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118 device = (SDL_VideoDevice *) SDL_malloc(sizeof(SDL_VideoDevice));
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119 if (device) {
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120 SDL_memset(device, 0, (sizeof *device));
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121 device->hidden = (struct SDL_PrivateVideoData *)
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122 SDL_malloc((sizeof *device->hidden));
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123 }
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124 if ((device == NULL) || (device->hidden == NULL)) {
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125 SDL_OutOfMemory();
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126 if (device) {
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127 SDL_free(device);
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128 }
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129 return (0);
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130 }
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131 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
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132
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133 /* Set the function pointers */
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134 device->VideoInit = SVGA_VideoInit;
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135 device->ListModes = SVGA_ListModes;
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136 device->SetVideoMode = SVGA_SetVideoMode;
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137 device->SetColors = SVGA_SetColors;
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138 device->UpdateRects = NULL;
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139 device->VideoQuit = SVGA_VideoQuit;
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140 device->AllocHWSurface = SVGA_AllocHWSurface;
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141 device->CheckHWBlit = NULL;
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142 device->FillHWRect = NULL;
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143 device->SetHWColorKey = NULL;
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144 device->SetHWAlpha = NULL;
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145 device->LockHWSurface = SVGA_LockHWSurface;
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146 device->UnlockHWSurface = SVGA_UnlockHWSurface;
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147 device->FlipHWSurface = SVGA_FlipHWSurface;
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148 device->FreeHWSurface = SVGA_FreeHWSurface;
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149 device->SetCaption = NULL;
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150 device->SetIcon = NULL;
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151 device->IconifyWindow = NULL;
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152 device->GrabInput = NULL;
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153 device->GetWMInfo = NULL;
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154 device->InitOSKeymap = SVGA_InitOSKeymap;
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155 device->PumpEvents = SVGA_PumpEvents;
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156
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157 device->free = SVGA_DeleteDevice;
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158
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159 return device;
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160 }
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161
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162 VideoBootStrap SVGALIB_bootstrap = {
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163 "svgalib", "SVGAlib",
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164 SVGA_Available, SVGA_CreateDevice
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165 };
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166
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167 static int
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168 SVGA_AddMode(_THIS, int mode, int actually_add)
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169 {
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170 int i, j;
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171 vga_modeinfo *modeinfo;
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172
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173 modeinfo = vga_getmodeinfo(mode);
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174
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175 i = modeinfo->bytesperpixel - 1;
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176 if (i < 0) {
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177 return 0;
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178 }
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179 if (actually_add) {
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180 SDL_Rect saved_rect[2];
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181 int saved_mode[2];
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182 int b;
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183
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184 /* Add the mode, sorted largest to smallest */
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185 b = 0;
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186 j = 0;
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187 while ((SDL_modelist[i][j]->w > modeinfo->width) ||
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188 (SDL_modelist[i][j]->h > modeinfo->height)) {
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189 ++j;
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190 }
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191 /* Skip modes that are already in our list */
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192 if ((SDL_modelist[i][j]->w == modeinfo->width) &&
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193 (SDL_modelist[i][j]->h == modeinfo->height)) {
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194 return (0);
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195 }
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196 /* Insert the new mode */
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197 saved_rect[b] = *SDL_modelist[i][j];
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198 saved_mode[b] = SDL_vgamode[i][j];
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199 SDL_modelist[i][j]->w = modeinfo->width;
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200 SDL_modelist[i][j]->h = modeinfo->height;
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201 SDL_vgamode[i][j] = mode;
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202 /* Everybody scoot down! */
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203 if (saved_rect[b].w && saved_rect[b].h) {
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204 for (++j; SDL_modelist[i][j]->w; ++j) {
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205 saved_rect[!b] = *SDL_modelist[i][j];
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206 saved_mode[!b] = SDL_vgamode[i][j];
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207 *SDL_modelist[i][j] = saved_rect[b];
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208 SDL_vgamode[i][j] = saved_mode[b];
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209 b = !b;
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210 }
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211 *SDL_modelist[i][j] = saved_rect[b];
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212 SDL_vgamode[i][j] = saved_mode[b];
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213 }
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214 } else {
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215 ++SDL_nummodes[i];
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216 }
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217 return (1);
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218 }
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219
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diff changeset
220 static void
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221 SVGA_UpdateVideoInfo(_THIS)
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222 {
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223 vga_modeinfo *modeinfo;
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224
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225 this->info.wm_available = 0;
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226 this->info.hw_available = (banked ? 0 : 1);
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227 modeinfo = vga_getmodeinfo(vga_getcurrentmode());
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228 this->info.video_mem = modeinfo->memory;
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diff changeset
229 /* FIXME: Add hardware accelerated blit information */
226
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diff changeset
230 #ifdef SVGALIB_DEBUG
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231 printf("Hardware accelerated blit: %savailable\n",
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diff changeset
232 modeinfo->haveblit ? "" : "not ");
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233 #endif
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234 }
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235
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236 int
1668
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237 SVGA_VideoInit(_THIS, SDL_PixelFormat * vformat)
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238 {
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239 int keyboard;
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240 int i, j;
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241 int mode, total_modes;
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242
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243 /* Initialize all variables that we clean on shutdown */
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244 for (i = 0; i < NUM_MODELISTS; ++i) {
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245 SDL_nummodes[i] = 0;
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246 SDL_modelist[i] = NULL;
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247 SDL_vgamode[i] = NULL;
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248 }
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249
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250 /* Initialize the library */
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251 vga_disabledriverreport();
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252 if (vga_init() < 0) {
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253 SDL_SetError("Unable to initialize SVGAlib");
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254 return (-1);
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255 }
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256 vga_setmode(TEXT);
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257
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258 /* Enable mouse and keyboard support */
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259 vga_setmousesupport(1);
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260 keyboard = keyboard_init_return_fd();
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261 if (keyboard < 0) {
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262 SDL_SetError("Unable to initialize keyboard");
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263 return (-1);
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264 }
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265 if (SVGA_initkeymaps(keyboard) < 0) {
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266 return (-1);
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267 }
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268 keyboard_seteventhandler(SVGA_keyboardcallback);
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269
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270 /* Determine the current screen size */
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271 this->info.current_w = 0;
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272 this->info.current_h = 0;
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273
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274 /* Determine the screen depth (use default 8-bit depth) */
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275 vformat->BitsPerPixel = 8;
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276
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277 /* Enumerate the available fullscreen modes */
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278 total_modes = 0;
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279 for (mode = vga_lastmodenumber(); mode; --mode) {
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280 if (vga_hasmode(mode)) {
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281 if (SVGA_AddMode(this, mode, 0)) {
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282 ++total_modes;
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283 }
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284 }
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285 }
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286 if (SVGA_AddMode(this, G320x200x256, 0))
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287 ++total_modes;
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288 if (total_modes == 0) {
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289 SDL_SetError("No linear video modes available");
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290 return (-1);
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291 }
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292 for (i = 0; i < NUM_MODELISTS; ++i) {
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293 SDL_vgamode[i] = (int *) SDL_malloc(SDL_nummodes[i] * sizeof(int));
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294 if (SDL_vgamode[i] == NULL) {
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295 SDL_OutOfMemory();
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296 return (-1);
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297 }
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298 SDL_modelist[i] = (SDL_Rect **)
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299 SDL_malloc((SDL_nummodes[i] + 1) * sizeof(SDL_Rect *));
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300 if (SDL_modelist[i] == NULL) {
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301 SDL_OutOfMemory();
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302 return (-1);
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303 }
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304 for (j = 0; j < SDL_nummodes[i]; ++j) {
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305 SDL_modelist[i][j] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect));
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306 if (SDL_modelist[i][j] == NULL) {
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307 SDL_OutOfMemory();
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308 return (-1);
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309 }
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310 SDL_memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect));
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311 }
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312 SDL_modelist[i][j] = NULL;
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313 }
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314 for (mode = vga_lastmodenumber(); mode; --mode) {
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315 if (vga_hasmode(mode)) {
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316 SVGA_AddMode(this, mode, 1);
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317 }
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318 }
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319 SVGA_AddMode(this, G320x200x256, 1);
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320
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321 /* Free extra (duplicated) modes */
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322 for (i = 0; i < NUM_MODELISTS; ++i) {
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323 j = 0;
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324 while (SDL_modelist[i][j] && SDL_modelist[i][j]->w) {
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325 j++;
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326 }
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327 while (SDL_modelist[i][j]) {
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328 SDL_free(SDL_modelist[i][j]);
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329 SDL_modelist[i][j] = NULL;
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330 j++;
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331 }
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332 }
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333
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334 /* Fill in our hardware acceleration capabilities */
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335 SVGA_UpdateVideoInfo(this);
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336
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337 /* We're done! */
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338 return (0);
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339 }
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340
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341 SDL_Rect **
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342 SVGA_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags)
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343 {
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344 return (SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]);
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345 }
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346
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347 /* Various screen update functions available */
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348 static void SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect * rects);
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349 static void SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect * rects);
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350
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351 SDL_Surface *
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352 SVGA_SetVideoMode(_THIS, SDL_Surface * current,
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353 int width, int height, int bpp, Uint32 flags)
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354 {
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355 int mode;
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356 int vgamode;
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357 vga_modeinfo *modeinfo;
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358 int screenpage_len;
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359
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360 /* Free old pixels if we were in banked mode */
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361 if (banked && current->pixels) {
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362 free(current->pixels);
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363 current->pixels = NULL;
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364 }
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365
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366 /* Try to set the requested linear video mode */
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367 bpp = (bpp + 7) / 8 - 1;
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368 for (mode = 0; SDL_modelist[bpp][mode]; ++mode) {
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369 if ((SDL_modelist[bpp][mode]->w == width) &&
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370 (SDL_modelist[bpp][mode]->h == height)) {
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371 break;
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372 }
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373 }
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374 if (SDL_modelist[bpp][mode] == NULL) {
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375 SDL_SetError("Couldn't find requested mode in list");
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376 return (NULL);
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377 }
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378 vgamode = SDL_vgamode[bpp][mode];
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379 vga_setmode(vgamode);
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380 vga_setpage(0);
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381
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382 if ((vga_setlinearaddressing() < 0) && (vgamode != G320x200x256)) {
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383 banked = 1;
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diff changeset
384 } else {
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diff changeset
385 banked = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
386 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
387
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diff changeset
388 modeinfo = vga_getmodeinfo(SDL_vgamode[bpp][mode]);
0
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389
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diff changeset
390 /* Update hardware acceleration info */
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391 SVGA_UpdateVideoInfo(this);
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diff changeset
392
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diff changeset
393 /* Allocate the new pixel format for the screen */
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394 bpp = (bpp + 1) * 8;
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diff changeset
395 if ((bpp == 16) && (modeinfo->colors == 32768)) {
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396 bpp = 15;
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397 }
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diff changeset
398 if (!SDL_ReallocFormat(current, bpp, 0, 0, 0, 0)) {
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399 return (NULL);
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400 }
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401
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diff changeset
402 /* Set up the new mode framebuffer */
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403 current->flags = SDL_FULLSCREEN;
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diff changeset
404 if (!banked) {
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diff changeset
405 current->flags |= SDL_HWSURFACE;
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406 }
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diff changeset
407 if (bpp == 8) {
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diff changeset
408 /* FIXME: What about DirectColor? */
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409 current->flags |= SDL_HWPALETTE;
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410 }
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diff changeset
411 current->w = width;
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412 current->h = height;
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413 current->pitch = modeinfo->linewidth;
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diff changeset
414 if (banked) {
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415 current->pixels = SDL_malloc(current->h * current->pitch);
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diff changeset
416 if (!current->pixels) {
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417 SDL_OutOfMemory();
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418 return (NULL);
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419 }
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420 } else {
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421 current->pixels = vga_getgraphmem();
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diff changeset
422 }
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diff changeset
423
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diff changeset
424 /* set double-buffering */
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425 if ((flags & SDL_DOUBLEBUF) && !banked) {
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diff changeset
426 /* length of one screen page in bytes */
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diff changeset
427 screenpage_len = current->h * modeinfo->linewidth;
205
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parents: 67
diff changeset
428
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diff changeset
429 /* if start address should be aligned */
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diff changeset
430 if (modeinfo->linewidth_unit) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
431 if (screenpage_len % modeinfo->linewidth_unit) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
432 screenpage_len +=
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diff changeset
433 modeinfo->linewidth_unit -
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434 (screenpage_len % modeinfo->linewidth_unit);
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diff changeset
435 }
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diff changeset
436 }
205
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diff changeset
437
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
438 /* if we heve enough videomemory = ak je dost videopamete */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
439 if (modeinfo->memory > (screenpage_len * 2 / 1024)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
440 current->flags |= SDL_DOUBLEBUF;
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diff changeset
441 flip_page = 0;
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diff changeset
442 flip_offset[0] = 0;
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diff changeset
443 flip_offset[1] = screenpage_len;
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diff changeset
444 flip_address[0] = vga_getgraphmem();
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diff changeset
445 flip_address[1] = flip_address[0] + screenpage_len;
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diff changeset
446 SVGA_FlipHWSurface(this, current);
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diff changeset
447 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
448 }
205
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diff changeset
449
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
450 /* Set the blit function */
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diff changeset
451 if (banked) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
452 this->UpdateRects = SVGA_BankedUpdate;
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diff changeset
453 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
454 this->UpdateRects = SVGA_DirectUpdate;
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diff changeset
455 }
0
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diff changeset
456
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
457 /* Set up the mouse handler again (buggy SVGAlib 1.40) */
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diff changeset
458 mouse_seteventhandler(SVGA_mousecallback);
0
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diff changeset
459
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diff changeset
460 /* We're done */
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diff changeset
461 return (current);
0
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parents:
diff changeset
462 }
74212992fb08 Initial revision
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parents:
diff changeset
463
74212992fb08 Initial revision
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parents:
diff changeset
464 /* We don't actually allow hardware surfaces other than the main one */
1662
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diff changeset
465 static int
1668
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diff changeset
466 SVGA_AllocHWSurface(_THIS, SDL_Surface * surface)
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diff changeset
467 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
468 return (-1);
0
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diff changeset
469 }
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
470 static void
1668
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diff changeset
471 SVGA_FreeHWSurface(_THIS, SDL_Surface * surface)
0
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parents:
diff changeset
472 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
473 return;
0
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parents:
diff changeset
474 }
74212992fb08 Initial revision
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parents:
diff changeset
475
74212992fb08 Initial revision
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parents:
diff changeset
476 /* We need to wait for vertical retrace on page flipped displays */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
477 static int
1668
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diff changeset
478 SVGA_LockHWSurface(_THIS, SDL_Surface * surface)
0
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diff changeset
479 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
480 /* The waiting is done in SVGA_FlipHWSurface() */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
481 return (0);
0
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parents:
diff changeset
482 }
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
483 static void
1668
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diff changeset
484 SVGA_UnlockHWSurface(_THIS, SDL_Surface * surface)
0
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parents:
diff changeset
485 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
486 return;
0
74212992fb08 Initial revision
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parents:
diff changeset
487 }
74212992fb08 Initial revision
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parents:
diff changeset
488
1662
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
489 static int
1668
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diff changeset
490 SVGA_FlipHWSurface(_THIS, SDL_Surface * surface)
0
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parents:
diff changeset
491 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
492 if (!banked) {
1668
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parents: 1662
diff changeset
493 vga_setdisplaystart(flip_offset[flip_page]);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
494 flip_page = !flip_page;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
495 surface->pixels = flip_address[flip_page];
1668
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diff changeset
496 vga_waitretrace();
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
497 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
498 return (0);
0
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parents:
diff changeset
499 }
74212992fb08 Initial revision
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parents:
diff changeset
500
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
501 static void
1668
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diff changeset
502 SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect * rects)
0
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parents:
diff changeset
503 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
504 return;
0
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parents:
diff changeset
505 }
74212992fb08 Initial revision
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parents:
diff changeset
506
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
507 static void
1668
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diff changeset
508 SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect * rects)
0
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parents:
diff changeset
509 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
510 int i, j;
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diff changeset
511 SDL_Rect *rect;
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512 int page, vp;
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513 int x, y, w, h;
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514 unsigned char *src;
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diff changeset
515 unsigned char *dst;
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516 int bpp = this->screen->format->BytesPerPixel;
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517 int pitch = this->screen->pitch;
1554
0ca607a5d173 Fixed bug #84
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518
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519 dst = vga_getgraphmem();
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520 for (i = 0; i < numrects; ++i) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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521 rect = &rects[i];
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522 x = rect->x;
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523 y = rect->y;
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524 w = rect->w * bpp;
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525 h = rect->h;
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011b633fa0c9 Fixed bug #84
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526
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527 vp = y * pitch + x * bpp;
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528 src = (unsigned char *) this->screen->pixels + vp;
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529 page = vp >> 16;
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530 vp &= 0xffff;
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531 vga_setpage(page);
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532 for (j = 0; j < h; j++) {
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533 if (vp + w > 0x10000) {
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534 if (vp >= 0x10000) {
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diff changeset
535 page++;
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536 vga_setpage(page);
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537 vp &= 0xffff;
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538 } else {
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539 SDL_memcpy(dst + vp, src, 0x10000 - vp);
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diff changeset
540 page++;
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541 vga_setpage(page);
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542 SDL_memcpy(dst, src + 0x10000 - vp, (vp + w) & 0xffff);
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543 vp = (vp + pitch) & 0xffff;
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diff changeset
544 src += pitch;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
545 continue;
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diff changeset
546 }
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547 }
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548 SDL_memcpy(dst + vp, src, w);
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diff changeset
549 src += pitch;
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550 vp += pitch;
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551 }
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diff changeset
552 }
0
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diff changeset
553 }
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parents:
diff changeset
554
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diff changeset
555 int
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556 SVGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color * colors)
0
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parents:
diff changeset
557 {
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diff changeset
558 int i;
0
74212992fb08 Initial revision
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parents:
diff changeset
559
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
560 for (i = 0; i < ncolors; i++) {
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diff changeset
561 vga_setpalette(firstcolor + i,
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diff changeset
562 colors[i].r >> 2, colors[i].g >> 2, colors[i].b >> 2);
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
563 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
564 return (1);
0
74212992fb08 Initial revision
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diff changeset
565 }
74212992fb08 Initial revision
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parents:
diff changeset
566
74212992fb08 Initial revision
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parents:
diff changeset
567 /* Note: If we are terminated, this could be called in the middle of
74212992fb08 Initial revision
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parents:
diff changeset
568 another SDL video routine -- notably UpdateRects.
74212992fb08 Initial revision
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diff changeset
569 */
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diff changeset
570 void
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diff changeset
571 SVGA_VideoQuit(_THIS)
0
74212992fb08 Initial revision
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parents:
diff changeset
572 {
1662
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diff changeset
573 int i, j;
0
74212992fb08 Initial revision
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parents:
diff changeset
574
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diff changeset
575 /* Reset the console video mode */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
576 if (this->screen && (this->screen->w && this->screen->h)) {
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diff changeset
577 vga_setmode(TEXT);
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diff changeset
578 }
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diff changeset
579 keyboard_close();
0
74212992fb08 Initial revision
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parents:
diff changeset
580
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
581 /* Free video mode lists */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
582 for (i = 0; i < NUM_MODELISTS; ++i) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
583 if (SDL_modelist[i] != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
584 for (j = 0; SDL_modelist[i][j]; ++j)
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parents: 1662
diff changeset
585 SDL_free(SDL_modelist[i][j]);
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parents: 1662
diff changeset
586 SDL_free(SDL_modelist[i]);
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1556
diff changeset
587 SDL_modelist[i] = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
588 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
589 if (SDL_vgamode[i] != NULL) {
1668
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parents: 1662
diff changeset
590 SDL_free(SDL_vgamode[i]);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
591 SDL_vgamode[i] = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
592 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
593 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
594 if (this->screen) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
595 if (banked && this->screen->pixels) {
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diff changeset
596 SDL_free(this->screen->pixels);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
597 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
598 this->screen->pixels = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
599 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
600 }
205
13161d3d349d Added double-buffering support for SVGAlib (thanks Kutak!)
Sam Lantinga <slouken@libsdl.org>
parents: 67
diff changeset
601
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1556
diff changeset
602 /* vi: set ts=4 sw=4 expandtab: */