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annotate src/video/x11/SDL_x11yuv.c @ 946:8520712f8ef0

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*** empty log message ***
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Aug 2004 14:54:49 +0000
parents 6a2c6717b386
children b7a5c1b64829
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* This is the XFree86 Xv extension implementation of YUV video overlays */
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29
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30 #ifdef XFREE86_XV
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31
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32 #include <stdlib.h>
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33 #include <string.h>
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34 #include <X11/Xlib.h>
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35 #ifndef NO_SHARED_MEMORY
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36 #include <sys/ipc.h>
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37 #include <sys/shm.h>
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38 #include <X11/extensions/XShm.h>
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39 #endif
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40 #include <XFree86/extensions/Xvlib.h>
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41
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42 #include "SDL_error.h"
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43 #include "SDL_video.h"
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44 #include "SDL_x11yuv_c.h"
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45 #include "SDL_yuvfuncs.h"
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46
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47 #define XFREE86_REFRESH_HACK
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48 #ifdef XFREE86_REFRESH_HACK
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49 #include "SDL_x11image_c.h"
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50 #endif
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51
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52 /* Workaround when pitch != width */
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53 #define PITCH_WORKAROUND
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54
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55 /* Fix for the NVidia GeForce 2 - use the last available adaptor */
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56 /*#define USE_LAST_ADAPTOR*/ /* Apparently the NVidia drivers are fixed */
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57
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58 /* The functions used to manipulate software video overlays */
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59 static struct private_yuvhwfuncs x11_yuvfuncs = {
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60 X11_LockYUVOverlay,
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61 X11_UnlockYUVOverlay,
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62 X11_DisplayYUVOverlay,
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63 X11_FreeYUVOverlay
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64 };
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65
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66 struct private_yuvhwdata {
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67 int port;
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68 #ifndef NO_SHARED_MEMORY
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69 int yuv_use_mitshm;
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70 XShmSegmentInfo yuvshm;
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71 #endif
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72 SDL_NAME(XvImage) *image;
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73 };
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74
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75
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76 #ifndef NO_SHARED_MEMORY
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77 /* Shared memory error handler routine */
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78 static int shm_error;
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79 static int (*X_handler)(Display *, XErrorEvent *) = NULL;
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80 static int shm_errhandler(Display *d, XErrorEvent *e)
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81 {
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82 if ( e->error_code == BadAccess ) {
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83 shm_error = True;
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84 return(0);
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85 } else
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86 return(X_handler(d,e));
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87 }
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88 #endif /* !NO_SHARED_MEMORY */
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89
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90
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91 SDL_Overlay *X11_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
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92 {
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93 SDL_Overlay *overlay;
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94 struct private_yuvhwdata *hwdata;
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95 int xv_port;
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96 int i, j, k;
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97 int adaptors;
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98 SDL_NAME(XvAdaptorInfo) *ainfo;
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99 int bpp;
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100 #ifndef NO_SHARED_MEMORY
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101 XShmSegmentInfo *yuvshm;
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102 #endif
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103
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104 /* Look for the XVideo extension with a valid port for this format */
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105 xv_port = -1;
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106 if ( (Success == SDL_NAME(XvQueryExtension)(GFX_Display, &j, &j, &j, &j, &j)) &&
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107 (Success == SDL_NAME(XvQueryAdaptors)(GFX_Display,
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108 RootWindow(GFX_Display, SDL_Screen),
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109 &adaptors, &ainfo)) ) {
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110 #ifdef USE_LAST_ADAPTOR
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111 for ( i=0; i < adaptors; ++i )
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112 #else
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113 for ( i=0; (i < adaptors) && (xv_port == -1); ++i )
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114 #endif /* USE_LAST_ADAPTOR */
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115 {
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116 /* Check to see if the visual can be used */
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117 if ( BUGGY_XFREE86(<=, 4001) ) {
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118 int visual_ok = 0;
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119 for ( j=0; j<ainfo[i].num_formats; ++j ) {
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120 if ( ainfo[i].formats[j].visual_id ==
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121 SDL_Visual->visualid ) {
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122 visual_ok = 1;
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123 break;
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124 }
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125 }
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126 if ( ! visual_ok ) {
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127 continue;
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128 }
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129 }
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130 if ( (ainfo[i].type & XvInputMask) &&
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131 (ainfo[i].type & XvImageMask) ) {
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132 int num_formats;
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133 SDL_NAME(XvImageFormatValues) *formats;
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134 formats = SDL_NAME(XvListImageFormats)(GFX_Display,
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135 ainfo[i].base_id, &num_formats);
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136 #ifdef USE_LAST_ADAPTOR
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137 for ( j=0; j < num_formats; ++j )
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138 #else
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139 for ( j=0; (j < num_formats) && (xv_port == -1); ++j )
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140 #endif /* USE_LAST_ADAPTOR */
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141 {
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142 if ( (Uint32)formats[j].id == format ) {
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143 for ( k=0; k < ainfo[i].num_ports; ++k ) {
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144 if ( Success == SDL_NAME(XvGrabPort)(GFX_Display, ainfo[i].base_id+k, CurrentTime) ) {
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145 xv_port = ainfo[i].base_id+k;
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146 break;
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147 }
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148 }
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149 }
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150 }
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151 if ( formats ) {
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152 XFree(formats);
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153 }
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154 }
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155 }
409
1c3cf7231cd4 Fixed memory leaks in YUV code
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diff changeset
156 SDL_NAME(XvFreeAdaptorInfo)(ainfo);
0
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157 }
429
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158
813
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159 /* Precalculate the bpp for the pitch workaround below */
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diff changeset
160 switch (format) {
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parents: 769
diff changeset
161 /* Add any other cases we need to support... */
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diff changeset
162 case SDL_YUY2_OVERLAY:
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diff changeset
163 case SDL_UYVY_OVERLAY:
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diff changeset
164 case SDL_YVYU_OVERLAY:
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165 bpp = 2;
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diff changeset
166 break;
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diff changeset
167 default:
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168 bpp = 1;
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diff changeset
169 break;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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170 }
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171
434
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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diff changeset
172 #if 0
429
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diff changeset
173 /*
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diff changeset
174 * !!! FIXME:
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175 * "Here are some diffs for X11 and yuv. Note that the last part 2nd
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176 * diff should probably be a new call to XvQueryAdaptorFree with ainfo
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diff changeset
177 * and the number of adaptors, instead of the loop through like I did."
434
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178 *
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179 * ACHTUNG: This is broken! It looks like XvFreeAdaptorInfo does this
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180 * for you, so we end up with a double-free. I need to look at this
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diff changeset
181 * more closely... --ryan.
429
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182 */
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183 for ( i=0; i < adaptors; ++i ) {
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184 if (ainfo[i].name != NULL) Xfree(ainfo[i].name);
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185 if (ainfo[i].formats != NULL) Xfree(ainfo[i].formats);
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186 }
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187 Xfree(ainfo);
434
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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diff changeset
188 #endif
429
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189
0
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190 if ( xv_port == -1 ) {
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191 SDL_SetError("No available video ports for requested format");
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192 return(NULL);
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193 }
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194
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195 /* Create the overlay structure */
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196 overlay = (SDL_Overlay *)malloc(sizeof *overlay);
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197 if ( overlay == NULL ) {
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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parents: 252
diff changeset
198 SDL_NAME(XvUngrabPort)(GFX_Display, xv_port, CurrentTime);
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199 SDL_OutOfMemory();
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200 return(NULL);
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parents:
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201 }
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202 memset(overlay, 0, (sizeof *overlay));
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203
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204 /* Fill in the basic members */
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205 overlay->format = format;
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206 overlay->w = width;
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207 overlay->h = height;
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diff changeset
208
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209 /* Set up the YUV surface function structure */
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parents:
diff changeset
210 overlay->hwfuncs = &x11_yuvfuncs;
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parents:
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211 overlay->hw_overlay = 1;
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parents:
diff changeset
212
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diff changeset
213 /* Create the pixel data and lookup tables */
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parents:
diff changeset
214 hwdata = (struct private_yuvhwdata *)malloc(sizeof *hwdata);
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parents:
diff changeset
215 overlay->hwdata = hwdata;
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parents:
diff changeset
216 if ( hwdata == NULL ) {
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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parents: 252
diff changeset
217 SDL_NAME(XvUngrabPort)(GFX_Display, xv_port, CurrentTime);
0
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218 SDL_OutOfMemory();
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219 SDL_FreeYUVOverlay(overlay);
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220 return(NULL);
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parents:
diff changeset
221 }
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
222 hwdata->port = xv_port;
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diff changeset
223 #ifndef NO_SHARED_MEMORY
0
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224 yuvshm = &hwdata->yuvshm;
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225 memset(yuvshm, 0, sizeof(*yuvshm));
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
226 hwdata->image = SDL_NAME(XvShmCreateImage)(GFX_Display, xv_port, format,
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
227 0, width, height, yuvshm);
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diff changeset
228 #ifdef PITCH_WORKAROUND
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diff changeset
229 if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
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230 /* Ajust overlay width according to pitch */
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diff changeset
231 XFree(hwdata->image);
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diff changeset
232 width = hwdata->image->pitches[0] / bpp;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
233 hwdata->image = SDL_NAME(XvShmCreateImage)(GFX_Display, xv_port, format,
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diff changeset
234 0, width, height, yuvshm);
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diff changeset
235 }
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diff changeset
236 #endif /* PITCH_WORKAROUND */
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
237 hwdata->yuv_use_mitshm = (hwdata->image != NULL);
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parents: 769
diff changeset
238 if ( hwdata->yuv_use_mitshm ) {
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parents: 769
diff changeset
239 yuvshm->shmid = shmget(IPC_PRIVATE, hwdata->image->data_size,
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
240 IPC_CREAT | 0777);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
241 if ( yuvshm->shmid >= 0 ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
242 yuvshm->shmaddr = (char *)shmat(yuvshm->shmid, 0, 0);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
243 yuvshm->readOnly = False;
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parents: 769
diff changeset
244 if ( yuvshm->shmaddr != (char *)-1 ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
245 shm_error = False;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
246 X_handler = XSetErrorHandler(shm_errhandler);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
247 XShmAttach(GFX_Display, yuvshm);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
248 XSync(GFX_Display, True);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
249 XSetErrorHandler(X_handler);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
250 if ( shm_error )
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
251 shmdt(yuvshm->shmaddr);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
252 } else {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
253 shm_error = True;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
254 }
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
255 shmctl(yuvshm->shmid, IPC_RMID, NULL);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
256 } else {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
257 shm_error = True;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
258 }
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
259 if ( shm_error ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
260 XFree(hwdata->image);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
261 hwdata->yuv_use_mitshm = 0;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
262 } else {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
263 hwdata->image->data = yuvshm->shmaddr;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
264 }
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
265 }
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
266 if ( !hwdata->yuv_use_mitshm )
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
267 #endif /* NO_SHARED_MEMORY */
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
268 {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
269 hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
270 0, width, height);
0
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diff changeset
271
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diff changeset
272 #ifdef PITCH_WORKAROUND
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
273 if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
274 /* Ajust overlay width according to pitch */
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
275 XFree(hwdata->image);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
276 width = hwdata->image->pitches[0] / bpp;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
277 hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
278 0, width, height);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
279 }
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
280 #endif /* PITCH_WORKAROUND */
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
281 if ( hwdata->image == NULL ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
282 SDL_SetError("Couldn't create XVideo image");
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
283 SDL_FreeYUVOverlay(overlay);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
284 return(NULL);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
285 }
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
286 hwdata->image->data = malloc(hwdata->image->data_size);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
287 if ( hwdata->image->data == NULL ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
288 SDL_OutOfMemory();
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
289 SDL_FreeYUVOverlay(overlay);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
290 return(NULL);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
291 }
0
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parents:
diff changeset
292 }
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parents:
diff changeset
293
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parents:
diff changeset
294 /* Find the pitch and offset values for the overlay */
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diff changeset
295 overlay->planes = hwdata->image->num_planes;
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parents:
diff changeset
296 overlay->pitches = (Uint16 *)malloc(overlay->planes * sizeof(Uint16));
74212992fb08 Initial revision
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297 overlay->pixels = (Uint8 **)malloc(overlay->planes * sizeof(Uint8 *));
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298 if ( !overlay->pitches || !overlay->pixels ) {
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299 SDL_OutOfMemory();
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300 SDL_FreeYUVOverlay(overlay);
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301 return(NULL);
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302 }
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303 for ( i=0; i<overlay->planes; ++i ) {
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304 overlay->pitches[i] = hwdata->image->pitches[i];
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305 overlay->pixels[i] = (Uint8 *)hwdata->image->data +
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306 hwdata->image->offsets[i];
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307 }
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308
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309 #ifdef XFREE86_REFRESH_HACK
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310 /* Work around an XFree86 X server bug (?)
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311 We can't perform normal updates in windows that have video
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312 being output to them. See SDL_x11image.c for more details.
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313 */
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314 X11_DisableAutoRefresh(this);
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315 #endif
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316
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317 /* We're all done.. */
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318 return(overlay);
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319 }
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320
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321 int X11_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
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322 {
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323 return(0);
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324 }
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325
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326 void X11_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
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327 {
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328 return;
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329 }
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330
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331 int X11_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect)
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332 {
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333 struct private_yuvhwdata *hwdata;
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334
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335 hwdata = overlay->hwdata;
813
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336 #ifndef NO_SHARED_MEMORY
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337 if ( hwdata->yuv_use_mitshm ) {
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338 SDL_NAME(XvShmPutImage)(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
0
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339 hwdata->image, 0, 0, overlay->w, overlay->h,
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340 dstrect->x, dstrect->y, dstrect->w, dstrect->h, False);
813
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341 }
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342 else
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343 #endif
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344 {
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345 SDL_NAME(XvPutImage)(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
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346 hwdata->image, 0, 0, overlay->w, overlay->h,
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347 dstrect->x, dstrect->y, dstrect->w, dstrect->h);
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348 }
0
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349 XSync(GFX_Display, False);
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350 return(0);
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351 }
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352
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353 void X11_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
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354 {
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355 struct private_yuvhwdata *hwdata;
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356
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357 hwdata = overlay->hwdata;
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358 if ( hwdata ) {
292
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359 SDL_NAME(XvUngrabPort)(GFX_Display, hwdata->port, CurrentTime);
813
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360 #ifndef NO_SHARED_MEMORY
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361 if ( hwdata->yuv_use_mitshm ) {
0
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362 XShmDetach(GFX_Display, &hwdata->yuvshm);
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363 shmdt(hwdata->yuvshm.shmaddr);
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364 }
813
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365 #endif
0
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366 if ( hwdata->image ) {
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367 XFree(hwdata->image);
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368 }
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369 free(hwdata);
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370 }
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371 if ( overlay->pitches ) {
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372 free(overlay->pitches);
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373 overlay->pitches = NULL;
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374 }
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375 if ( overlay->pixels ) {
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376 free(overlay->pixels);
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377 overlay->pixels = NULL;
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378 }
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379 #ifdef XFREE86_REFRESH_HACK
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380 X11_EnableAutoRefresh(this);
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381 #endif
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382 }
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parents:
diff changeset
383
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diff changeset
384 #endif /* XFREE86_XV */