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annotate src/video/Xext/extensions/xf86dga1.h @ 1554:0ca607a5d173

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Fixed bug #84 Date: Sun, 23 Oct 2005 16:39:03 +0200 From: "A. Schmid" <sahib@phreaker.net> Subject: [SDL] no software surfaces with svgalib driver? Hi, I noticed that the SDL (1.2.9) svgalib driver only makes use of linear addressable (framebuffer) video modes. On older systems (like one of mine), linear addressable modes are often not available. Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is unusable, since VESA only supports framebuffering for VBE 2.0 and later. The changes necessary to add support for software surfaces seem to be relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see attached patch). The code worked fine for me, but it is no more than a proof of concept and should be reviewed (probably has a memory leak when switching modes). It also uses the vgagl library (included in the svgalib package) and needs to be linked against it. -Alex
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 12:04:40 +0000
parents 585a7e1285ae
children 782fd950bd46 c121d94672cb
rev   line source
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1 /* $XFree86: xc/include/extensions/xf86dga1.h,v 1.2 1999/04/17 07:05:41 dawes Exp $ */
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2 /*
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3
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4 Copyright (c) 1995 Jon Tombs
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5 Copyright (c) 1995 XFree86 Inc
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6
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7 */
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8
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9 /************************************************************************
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10
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11 THIS IS THE OLD DGA API AND IS OBSOLETE. PLEASE DO NOT USE IT ANYMORE
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12
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13 ************************************************************************/
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14
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15 #ifndef _XF86DGA1_H_
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16 #define _XF86DGA1_H_
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17
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18 #include <X11/Xfuncproto.h>
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19 #include "SDL_name.h"
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20
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21 #define X_XF86DGAQueryVersion 0
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22 #define X_XF86DGAGetVideoLL 1
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23 #define X_XF86DGADirectVideo 2
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24 #define X_XF86DGAGetViewPortSize 3
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25 #define X_XF86DGASetViewPort 4
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26 #define X_XF86DGAGetVidPage 5
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27 #define X_XF86DGASetVidPage 6
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28 #define X_XF86DGAInstallColormap 7
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29 #define X_XF86DGAQueryDirectVideo 8
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30 #define X_XF86DGAViewPortChanged 9
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31
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32 #define XF86DGADirectPresent 0x0001
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33 #define XF86DGADirectGraphics 0x0002
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34 #define XF86DGADirectMouse 0x0004
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35 #define XF86DGADirectKeyb 0x0008
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36 #define XF86DGAHasColormap 0x0100
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37 #define XF86DGADirectColormap 0x0200
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38
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39
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40
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41
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42 #ifndef _XF86DGA_SERVER_
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43
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44 _XFUNCPROTOBEGIN
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45
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46 Bool SDL_NAME(XF86DGAQueryVersion)(
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47 #if NeedFunctionPrototypes
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48 Display* /* dpy */,
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49 int* /* majorVersion */,
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50 int* /* minorVersion */
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51 #endif
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52 );
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53
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54 Bool SDL_NAME(XF86DGAQueryExtension)(
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55 #if NeedFunctionPrototypes
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56 Display* /* dpy */,
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57 int* /* event_base */,
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58 int* /* error_base */
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59 #endif
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60 );
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61
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62 Status SDL_NAME(XF86DGAGetVideoLL)(
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63 #if NeedFunctionPrototypes
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64 Display* /* dpy */,
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65 int /* screen */,
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66 int * /* base addr */,
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67 int * /* width */,
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68 int * /* bank_size */,
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69 int * /* ram_size */
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70 #endif
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71 );
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72
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73 Status SDL_NAME(XF86DGAGetVideo)(
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74 #if NeedFunctionPrototypes
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75 Display* /* dpy */,
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76 int /* screen */,
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77 char ** /* base addr */,
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78 int * /* width */,
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79 int * /* bank_size */,
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80 int * /* ram_size */
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81 #endif
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82 );
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83
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84 Status SDL_NAME(XF86DGADirectVideo)(
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85 #if NeedFunctionPrototypes
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86 Display* /* dpy */,
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87 int /* screen */,
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88 int /* enable */
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89 #endif
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90 );
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91
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92 Status SDL_NAME(XF86DGADirectVideoLL)(
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93 #if NeedFunctionPrototypes
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94 Display* /* dpy */,
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95 int /* screen */,
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96 int /* enable */
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97 #endif
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98 );
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99
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100 Status SDL_NAME(XF86DGAGetViewPortSize)(
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101 #if NeedFunctionPrototypes
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102 Display* /* dpy */,
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103 int /* screen */,
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104 int * /* width */,
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105 int * /* height */
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106 #endif
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107 );
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108
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109 Status SDL_NAME(XF86DGASetViewPort)(
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110 #if NeedFunctionPrototypes
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111 Display* /* dpy */,
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112 int /* screen */,
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113 int x /* X */,
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114 int y /* Y */
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115 #endif
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116 );
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117
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118 Status SDL_NAME(XF86DGAGetVidPage)(
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119 #if NeedFunctionPrototypes
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120 Display* /* dpy */,
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121 int /* screen */,
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122 int * /* vid page */
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123 #endif
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124 );
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125
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126 Status SDL_NAME(XF86DGASetVidPage)(
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127 #if NeedFunctionPrototypes
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128 Display* /* dpy */,
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129 int /* screen */,
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130 int /* vid page */
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131 #endif
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132 );
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133
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134 Status SDL_NAME(XF86DGAInstallColormap)(
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135 #if NeedFunctionPrototypes
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136 Display* /* dpy */,
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137 int /* screen */,
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138 Colormap /*Colormap */
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139 #endif
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140 );
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141
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142 int SDL_NAME(XF86DGAForkApp)(
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143 #if NeedFunctionPrototypes
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144 int screen
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145 #endif
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146 );
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147
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148 Status SDL_NAME(XF86DGAQueryDirectVideo)(
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149 #if NeedFunctionPrototypes
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150 Display * /* dpy */,
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151 int /* screen */,
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152 int * /* flags */
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153 #endif
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154 );
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155
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156 Bool SDL_NAME(XF86DGAViewPortChanged)(
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157 #if NeedFunctionPrototypes
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158 Display * /* dpy */,
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159 int /* screen */,
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160 int /* n */
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161 #endif
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162 );
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163
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164
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165 _XFUNCPROTOEND
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166
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167 #endif /* _XF86DGA_SERVER_ */
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168
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169 #endif /* _XF86DGA1_H_ */