Mercurial > sdl-ios-xcode
annotate src/video/svga/SDL_svgavideo.c @ 2993:2fad80c77c17
Technically more correct
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 04 Jan 2009 19:26:50 +0000 |
parents | 99210400e8b9 |
children | f7b03b6838cb |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
2859 | 3 Copyright (C) 1997-2009 Sam Lantinga |
0 | 4 |
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 |
0 | 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. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 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 |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 /* SVGAlib based SDL video driver implementation. | |
25 */ | |
26 | |
27 #include <unistd.h> | |
28 #include <sys/stat.h> | |
67
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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> |
0 | 32 |
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33 #if defined(__LINUX__) |
0 | 34 #include <linux/vt.h> |
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35 #elif defined(__FREEBSD__) |
0 | 36 #include <sys/consio.h> |
37 #else | |
38 #error You must choose your operating system here | |
39 #endif | |
40 #include <vga.h> | |
41 #include <vgamouse.h> | |
42 #include <vgakeyboard.h> | |
43 | |
44 #include "SDL_video.h" | |
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" |
0 | 49 #include "SDL_svgavideo.h" |
50 #include "SDL_svgaevents_c.h" | |
51 #include "SDL_svgamouse_c.h" | |
52 | |
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); |
0 | 60 static int SVGA_SetColors(_THIS, int firstcolor, int ncolors, |
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61 SDL_Color * colors); |
0 | 62 static void SVGA_VideoQuit(_THIS); |
63 | |
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); |
0 | 70 |
71 /* SVGAlib driver bootstrap functions */ | |
72 | |
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73 static int |
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74 SVGA_Available(void) |
0 | 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; |
0 | 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; |
0 | 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)); |
0 | 103 } |
104 | |
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105 static void |
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106 SVGA_DeleteDevice(SDL_VideoDevice * device) |
0 | 107 { |
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108 SDL_free(device->hidden); |
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109 SDL_free(device); |
0 | 110 } |
111 | |
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112 static SDL_VideoDevice * |
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113 SVGA_CreateDevice(int devindex) |
0 | 114 { |
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115 SDL_VideoDevice *device; |
0 | 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)); |
0 | 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; |
0 | 156 |
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157 device->free = SVGA_DeleteDevice; |
0 | 158 |
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159 return device; |
0 | 160 } |
161 | |
162 VideoBootStrap SVGALIB_bootstrap = { | |
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163 "svgalib", "SVGAlib", |
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164 SVGA_Available, SVGA_CreateDevice |
0 | 165 }; |
166 | |
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167 static int |
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168 SVGA_AddMode(_THIS, int mode, int actually_add) |
0 | 169 { |
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170 int i, j; |
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171 vga_modeinfo *modeinfo; |
0 | 172 |
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173 modeinfo = vga_getmodeinfo(mode); |
0 | 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; |
0 | 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); |
0 | 218 } |
219 | |
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220 static void |
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221 SVGA_UpdateVideoInfo(_THIS) |
0 | 222 { |
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223 vga_modeinfo *modeinfo; |
0 | 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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229 /* FIXME: Add hardware accelerated blit information */ |
226
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230 #ifdef SVGALIB_DEBUG |
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231 printf("Hardware accelerated blit: %savailable\n", |
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232 modeinfo->haveblit ? "" : "not "); |
0 | 233 #endif |
234 } | |
235 | |
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236 int |
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237 SVGA_VideoInit(_THIS, SDL_PixelFormat * vformat) |
0 | 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; |
0 | 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 } |
0 | 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); |
0 | 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); |
0 | 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; |
0 | 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); |
0 | 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 } |
0 | 333 |
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334 /* Fill in our hardware acceleration capabilities */ |
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335 SVGA_UpdateVideoInfo(this); |
0 | 336 |
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337 /* We're done! */ |
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338 return (0); |
0 | 339 } |
340 | |
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341 SDL_Rect ** |
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342 SVGA_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags) |
0 | 343 { |
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344 return (SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]); |
0 | 345 } |
346 | |
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); |
0 | 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) |
0 | 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; |
0 | 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 } |
1554 | 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); |
0 | 381 |
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382 if ((vga_setlinearaddressing() < 0) && (vgamode != G320x200x256)) { |
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383 banked = 1; |
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384 } else { |
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385 banked = 0; |
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386 } |
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387 |
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388 modeinfo = vga_getmodeinfo(SDL_vgamode[bpp][mode]); |
0 | 389 |
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390 /* Update hardware acceleration info */ |
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391 SVGA_UpdateVideoInfo(this); |
0 | 392 |
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393 /* Allocate the new pixel format for the screen */ |
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394 bpp = (bpp + 1) * 8; |
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395 if ((bpp == 16) && (modeinfo->colors == 32768)) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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396 bpp = 15; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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397 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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398 if (!SDL_ReallocFormat(current, bpp, 0, 0, 0, 0)) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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399 return (NULL); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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400 } |
0 | 401 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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402 /* Set up the new mode framebuffer */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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403 current->flags = SDL_FULLSCREEN; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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404 if (!banked) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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405 current->flags |= SDL_HWSURFACE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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406 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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407 if (bpp == 8) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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408 /* FIXME: What about DirectColor? */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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409 current->flags |= SDL_HWPALETTE; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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410 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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411 current->w = width; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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412 current->h = height; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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413 current->pitch = modeinfo->linewidth; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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414 if (banked) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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415 current->pixels = SDL_malloc(current->h * current->pitch); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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416 if (!current->pixels) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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417 SDL_OutOfMemory(); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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418 return (NULL); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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419 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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420 } else { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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421 current->pixels = vga_getgraphmem(); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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422 } |
0 | 423 |
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424 /* set double-buffering */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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425 if ((flags & SDL_DOUBLEBUF) && !banked) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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426 /* length of one screen page in bytes */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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427 screenpage_len = current->h * modeinfo->linewidth; |
205
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428 |
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429 /* if start address should be aligned */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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430 if (modeinfo->linewidth_unit) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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431 if (screenpage_len % modeinfo->linewidth_unit) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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432 screenpage_len += |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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433 modeinfo->linewidth_unit - |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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434 (screenpage_len % modeinfo->linewidth_unit); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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435 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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436 } |
205
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Added double-buffering support for SVGAlib (thanks Kutak!)
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437 |
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438 /* if we heve enough videomemory = ak je dost videopamete */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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439 if (modeinfo->memory > (screenpage_len * 2 / 1024)) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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440 current->flags |= SDL_DOUBLEBUF; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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441 flip_page = 0; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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442 flip_offset[0] = 0; |
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443 flip_offset[1] = screenpage_len; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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444 flip_address[0] = vga_getgraphmem(); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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445 flip_address[1] = flip_address[0] + screenpage_len; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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446 SVGA_FlipHWSurface(this, current); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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447 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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448 } |
205
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Added double-buffering support for SVGAlib (thanks Kutak!)
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449 |
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450 /* Set the blit function */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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451 if (banked) { |
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452 this->UpdateRects = SVGA_BankedUpdate; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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453 } else { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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454 this->UpdateRects = SVGA_DirectUpdate; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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455 } |
0 | 456 |
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457 /* Set up the mouse handler again (buggy SVGAlib 1.40) */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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458 mouse_seteventhandler(SVGA_mousecallback); |
0 | 459 |
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460 /* We're done */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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461 return (current); |
0 | 462 } |
463 | |
464 /* We don't actually allow hardware surfaces other than the main one */ | |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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465 static int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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466 SVGA_AllocHWSurface(_THIS, SDL_Surface * surface) |
0 | 467 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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468 return (-1); |
0 | 469 } |
2735
204be4fc2726
Final merge of Google Summer of Code 2008 work...
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|
470 |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
471 static void |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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472 SVGA_FreeHWSurface(_THIS, SDL_Surface * surface) |
0 | 473 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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474 return; |
0 | 475 } |
476 | |
477 /* We need to wait for vertical retrace on page flipped displays */ | |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
478 static int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
479 SVGA_LockHWSurface(_THIS, SDL_Surface * surface) |
0 | 480 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
481 /* The waiting is done in SVGA_FlipHWSurface() */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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482 return (0); |
0 | 483 } |
2735
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Final merge of Google Summer of Code 2008 work...
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|
484 |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
485 static void |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
486 SVGA_UnlockHWSurface(_THIS, SDL_Surface * surface) |
0 | 487 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
488 return; |
0 | 489 } |
490 | |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
491 static int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
492 SVGA_FlipHWSurface(_THIS, SDL_Surface * surface) |
0 | 493 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
494 if (!banked) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
495 vga_setdisplaystart(flip_offset[flip_page]); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
496 flip_page = !flip_page; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
497 surface->pixels = flip_address[flip_page]; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
498 vga_waitretrace(); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
499 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
500 return (0); |
0 | 501 } |
502 | |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
503 static void |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
504 SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect * rects) |
0 | 505 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
506 return; |
0 | 507 } |
508 | |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
509 static void |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
510 SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect * rects) |
0 | 511 { |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
512 int i, j; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
513 SDL_Rect *rect; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
514 int page, vp; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
515 int x, y, w, h; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
516 unsigned char *src; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
517 unsigned char *dst; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
518 int bpp = this->screen->format->BytesPerPixel; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
519 int pitch = this->screen->pitch; |
1554 | 520 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
521 dst = vga_getgraphmem(); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
522 for (i = 0; i < numrects; ++i) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
523 rect = &rects[i]; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
524 x = rect->x; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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|
525 y = rect->y; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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526 w = rect->w * bpp; |
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527 h = rect->h; |
1556 | 528 |
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529 vp = y * pitch + x * bpp; |
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530 src = (unsigned char *) this->screen->pixels + vp; |
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531 page = vp >> 16; |
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532 vp &= 0xffff; |
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533 vga_setpage(page); |
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534 for (j = 0; j < h; j++) { |
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535 if (vp + w > 0x10000) { |
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536 if (vp >= 0x10000) { |
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537 page++; |
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538 vga_setpage(page); |
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539 vp &= 0xffff; |
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540 } else { |
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541 SDL_memcpy(dst + vp, src, 0x10000 - vp); |
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542 page++; |
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543 vga_setpage(page); |
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544 SDL_memcpy(dst, src + 0x10000 - vp, (vp + w) & 0xffff); |
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545 vp = (vp + pitch) & 0xffff; |
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546 src += pitch; |
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547 continue; |
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548 } |
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549 } |
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550 SDL_memcpy(dst + vp, src, w); |
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551 src += pitch; |
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552 vp += pitch; |
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553 } |
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554 } |
0 | 555 } |
556 | |
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557 int |
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558 SVGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color * colors) |
0 | 559 { |
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560 int i; |
0 | 561 |
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562 for (i = 0; i < ncolors; i++) { |
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563 vga_setpalette(firstcolor + i, |
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564 colors[i].r >> 2, colors[i].g >> 2, colors[i].b >> 2); |
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565 } |
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566 return (1); |
0 | 567 } |
568 | |
569 /* Note: If we are terminated, this could be called in the middle of | |
570 another SDL video routine -- notably UpdateRects. | |
571 */ | |
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572 void |
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573 SVGA_VideoQuit(_THIS) |
0 | 574 { |
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575 int i, j; |
0 | 576 |
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577 /* Reset the console video mode */ |
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578 if (this->screen && (this->screen->w && this->screen->h)) { |
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579 vga_setmode(TEXT); |
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580 } |
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581 keyboard_close(); |
0 | 582 |
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583 /* Free video mode lists */ |
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584 for (i = 0; i < NUM_MODELISTS; ++i) { |
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585 if (SDL_modelist[i] != NULL) { |
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586 for (j = 0; SDL_modelist[i][j]; ++j) |
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587 SDL_free(SDL_modelist[i][j]); |
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588 SDL_free(SDL_modelist[i]); |
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589 SDL_modelist[i] = NULL; |
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590 } |
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591 if (SDL_vgamode[i] != NULL) { |
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592 SDL_free(SDL_vgamode[i]); |
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593 SDL_vgamode[i] = NULL; |
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594 } |
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595 } |
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596 if (this->screen) { |
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597 if (banked && this->screen->pixels) { |
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598 SDL_free(this->screen->pixels); |
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599 } |
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600 this->screen->pixels = NULL; |
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601 } |
0 | 602 } |
205
13161d3d349d
Added double-buffering support for SVGAlib (thanks Kutak!)
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603 |
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604 /* vi: set ts=4 sw=4 expandtab: */ |