1 | /* GStreamer |
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2 | * Copyright (C) <2003> Julien Moutte <julien@moutte.net> |
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3 | * |
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4 | * This library is free software; you can redistribute it and/or |
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5 | * modify it under the terms of the GNU Library General Public |
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6 | * License as published by the Free Software Foundation; either |
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7 | * version 2 of the License, or (at your option) any later version. |
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8 | * |
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9 | * This library is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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12 | * Library General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU Library General Public |
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15 | * License along with this library; if not, write to the |
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16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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17 | * Boston, MA 02111-1307, USA. |
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18 | */ |
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19 | |
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20 | #ifdef HAVE_CONFIG_H |
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21 | #include "config.h" |
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22 | #endif |
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23 | |
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24 | /* Our interfaces */ |
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25 | #include <gst/navigation/navigation.h> |
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26 | #include <gst/xoverlay/xoverlay.h> |
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27 | |
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28 | /* Object header */ |
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29 | #include "glimagesink.h" |
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30 | |
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31 | /* Debugging category */ |
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32 | #include <gst/gstinfo.h> |
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33 | GST_DEBUG_CATEGORY_STATIC (gst_debug_glimagesink); |
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34 | #define GST_CAT_DEFAULT gst_debug_glimagesink |
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35 | |
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36 | static void gst_glimagesink_buffer_free (GstBuffer * buffer); |
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37 | |
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38 | /* ElementFactory information */ |
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39 | static GstElementDetails gst_glimagesink_details = |
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40 | GST_ELEMENT_DETAILS ("Video sink", |
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41 | "Sink/Video", |
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42 | "An OpenGL 1.2 based videosink", |
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43 | "Gernot Ziegler <gz@lysator.liu.se>, Julien Moutte <julien@moutte.net>"); |
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44 | |
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45 | /* Default template - initiated with class struct to allow gst-register to work |
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46 | without X running */ |
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47 | static GstStaticPadTemplate gst_glimagesink_sink_template_factory = |
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48 | GST_STATIC_PAD_TEMPLATE ("sink", |
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49 | GST_PAD_SINK, |
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50 | GST_PAD_ALWAYS, |
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51 | GST_STATIC_CAPS ("video/x-raw-rgb, " |
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52 | "framerate = (double) [ 1.0, 100.0 ], " |
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53 | "width = (int) [ 1, MAX ], " |
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54 | "height = (int) [ 1, MAX ]; " |
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55 | "video/x-raw-yuv, " |
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56 | "framerate = (double) [ 1.0, 100.0 ], " |
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57 | "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]") |
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58 | ); |
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59 | |
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60 | /* GLImageSink signals and args */ |
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61 | enum |
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62 | { |
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63 | SIGNAL_HANDOFF, |
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64 | SIGNAL_BUFALLOC, |
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65 | LAST_SIGNAL |
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66 | /* FILL ME */ |
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67 | }; |
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68 | |
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69 | static guint gst_glimagesink_signals[LAST_SIGNAL] = { 0 }; |
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70 | |
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71 | enum |
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72 | { |
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73 | ARG_0, |
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74 | ARG_DISPLAY, |
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75 | ARG_SYNCHRONOUS, |
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76 | ARG_SIGNAL_HANDOFFS |
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77 | /* FILL ME */ |
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78 | }; |
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79 | |
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80 | static GstVideoSinkClass *parent_class = NULL; |
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81 | |
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82 | /* ============================================================= */ |
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83 | /* */ |
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84 | /* Private Methods */ |
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85 | /* */ |
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86 | /* ============================================================= */ |
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87 | |
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88 | /* X11 and GLX stuff */ |
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89 | |
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90 | #define TEX_XSIZE 1024 |
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91 | #define TEX_YSIZE 1024 |
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92 | |
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93 | /* This function handles GstGLImage creation |
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94 | it creates data buffers and corresponding texture IDs */ |
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95 | static GstGLImage * |
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96 | gst_glimagesink_ximage_new (GstGLImageSink * glimagesink, gint width, |
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97 | gint height) |
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98 | { |
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99 | GstGLImage *ximage = NULL; |
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100 | |
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101 | g_return_val_if_fail (GST_IS_GLIMAGESINK (glimagesink), NULL); |
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102 | |
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103 | ximage = g_new0 (GstGLImage, 1); |
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104 | |
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105 | ximage->width = width; |
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106 | ximage->height = height; |
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107 | ximage->data = NULL; |
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108 | ximage->glimagesink = glimagesink; |
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109 | |
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110 | g_mutex_lock (glimagesink->x_lock); |
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111 | |
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112 | ximage->size = |
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113 | (glimagesink->xcontext->bpp / 8) * ximage->width * ximage->height; |
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114 | |
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115 | printf ("No ximage_new yet !\n"); |
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116 | |
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117 | { |
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118 | ximage->data = g_malloc (ximage->size); |
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119 | |
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120 | ximage->texid = 1000; |
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121 | } |
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122 | |
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123 | if (0) // can't fail ! |
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124 | { |
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125 | if (ximage->data) |
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126 | g_free (ximage->data); |
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127 | |
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128 | g_free (ximage); |
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129 | //ximage = NULL; |
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130 | } |
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131 | |
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132 | g_mutex_unlock (glimagesink->x_lock); |
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133 | |
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134 | return ximage; |
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135 | } |
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136 | |
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137 | /* This function destroys a GstGLImage handling XShm availability */ |
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138 | static void |
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139 | gst_glimagesink_ximage_destroy (GstGLImageSink * glimagesink, |
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140 | GstGLImage * ximage) |
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141 | { |
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142 | g_return_if_fail (ximage != NULL); |
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143 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
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144 | |
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145 | /* If the destroyed image is the current one we destroy our reference too */ |
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146 | if (glimagesink->cur_image == ximage) |
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147 | glimagesink->cur_image = NULL; |
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148 | |
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149 | printf ("No ximage_destroy implemented yet !\n"); |
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150 | |
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151 | g_mutex_lock (glimagesink->x_lock); |
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152 | |
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153 | { |
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154 | //if (ximage->ximage) // FIXME: doesnt exist - dealloc textures |
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155 | // XDestroyImage (ximage->ximage); |
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156 | } |
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157 | |
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158 | g_mutex_unlock (glimagesink->x_lock); |
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159 | |
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160 | g_free (ximage); |
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161 | } |
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162 | |
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163 | /* This function puts a GstGLImage on a GstGLImagesink's window */ |
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164 | static void |
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165 | gst_glimagesink_ximage_put (GstGLImageSink * glimagesink, GstGLImage * ximage) |
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166 | { |
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167 | float xmax; |
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168 | float ymax; |
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169 | float px; |
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170 | float py; |
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171 | |
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172 | g_return_if_fail (ximage != NULL); |
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173 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
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174 | |
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175 | if (glimagesink->signal_handoffs) { |
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176 | g_warning ("Not drawing anything due to signal_handoffs !\n"); |
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177 | return; |
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178 | } |
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179 | |
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180 | /* Store a reference to the last image we put */ |
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181 | if (glimagesink->cur_image != ximage) |
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182 | glimagesink->cur_image = ximage; |
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183 | |
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184 | g_mutex_lock (glimagesink->x_lock); |
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185 | |
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186 | // both upload the video, and redraw the screen |
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187 | |
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188 | //printf("No ximage_put yet !\n"); |
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189 | |
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190 | glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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191 | |
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192 | glMatrixMode (GL_PROJECTION); |
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193 | glLoadIdentity (); |
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194 | |
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195 | glMatrixMode (GL_MODELVIEW); |
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196 | glLoadIdentity (); |
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197 | //glTranslatef(0.0, 0.0, -5.0); |
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198 | |
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199 | glEnable (GL_TEXTURE_2D); |
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200 | |
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201 | glBindTexture (GL_TEXTURE_2D, ximage->texid); |
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202 | glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, ximage->width, ximage->height, |
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203 | GL_RGB, GL_UNSIGNED_BYTE, ximage->data); |
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204 | |
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205 | xmax = (float) ximage->width / TEX_XSIZE; |
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206 | ymax = (float) ximage->height / TEX_YSIZE; |
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207 | |
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208 | //float aspect = ximage->width/(float)ximage->height; |
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209 | |
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210 | // don't know what to do with pixel aspect yet. |
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211 | //float pixel_aspect = glimagesink->pixel_width/(float)glimagesink->pixel_height; |
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212 | |
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213 | //if (aspect != pixel_aspect) |
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214 | // g_warning("screen aspect %f differs from pixel_aspect %f !", aspect, pixel_aspect); |
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215 | |
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216 | glColor4f (1, 1, 1, 1); |
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217 | glBegin (GL_QUADS); |
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218 | |
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219 | glNormal3f (0, -1, 0); |
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220 | |
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221 | glTexCoord2f (xmax, 0); |
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222 | glVertex3f (1, 1, 0); |
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223 | |
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224 | glTexCoord2f (0, 0); |
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225 | glVertex3f (-1, 1, 0); |
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226 | |
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227 | glTexCoord2f (0, ymax); |
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228 | glVertex3f (-1, -1, 0); |
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229 | |
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230 | glTexCoord2f (xmax, ymax); |
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231 | glVertex3f (1, -1, 0); |
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232 | glEnd (); |
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233 | |
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234 | #if 1 // for pointer feedback, later |
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235 | glDisable (GL_TEXTURE_2D); |
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236 | if (glimagesink->pointer_moved) |
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237 | glColor3f (1, 1, 1); |
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238 | else |
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239 | glColor3f (1, 0, 1); |
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240 | |
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241 | if (glimagesink->pointer_button[0]) |
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242 | glColor3f (1, 0, 0); |
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243 | |
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244 | px = 2 * glimagesink->pointer_x / (float) ximage->width - 1.0; |
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245 | py = 2 * glimagesink->pointer_y / (float) ximage->height - 1.0; |
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246 | glPointSize (10); |
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247 | glBegin (GL_POINTS); |
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248 | glVertex2f (px, -py); |
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249 | glEnd (); |
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250 | #endif |
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251 | |
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252 | glXSwapBuffers (glimagesink->xcontext->disp, glimagesink->window->win); |
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253 | |
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254 | g_mutex_unlock (glimagesink->x_lock); |
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255 | } |
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256 | |
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257 | /* This function handles a GstXWindow creation */ |
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258 | static GstGLWindow * |
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259 | gst_glimagesink_xwindow_new (GstGLImageSink * glimagesink, gint width, |
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260 | gint height) |
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261 | { |
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262 | GstGLWindow *xwindow = NULL; |
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263 | GstXContext *xcontext = glimagesink->xcontext; |
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264 | Colormap cmap; |
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265 | Atom wmDelete; |
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266 | |
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267 | if (glimagesink->signal_handoffs) { |
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268 | g_warning ("NOT CREATING any window due to signal_handoffs !\n"); |
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269 | return NULL; |
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270 | } |
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271 | |
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272 | g_return_val_if_fail (GST_IS_GLIMAGESINK (glimagesink), NULL); |
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273 | |
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274 | xwindow = g_new0 (GstGLWindow, 1); |
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275 | |
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276 | xwindow->width = width; |
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277 | xwindow->height = height; |
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278 | xwindow->internal = TRUE; |
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279 | |
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280 | g_mutex_lock (glimagesink->x_lock); |
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281 | |
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282 | /* create a color map */ |
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283 | cmap = |
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284 | XCreateColormap (xcontext->disp, RootWindow (xcontext->disp, |
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285 | xcontext->visualinfo->screen), xcontext->visualinfo->visual, |
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286 | AllocNone); |
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287 | xwindow->attr.colormap = cmap; |
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288 | xwindow->attr.border_pixel = 0; |
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289 | |
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290 | #if 0 |
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291 | /* set sizes */ |
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292 | xwindow->x = 0; |
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293 | xwindow->y = 0; |
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294 | xwindow->width = 10; |
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295 | xwindow->height = 10; |
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296 | |
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297 | xwindow->rotX = 0; |
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298 | xwindow->rotY = 0; |
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299 | xwindow->zoom = 1; |
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300 | xwindow->zoomdir = 0.01; |
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301 | #endif |
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302 | |
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303 | xwindow->attr.event_mask = |
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304 | ExposureMask | KeyPressMask | ButtonPressMask | StructureNotifyMask; |
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305 | |
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306 | /* create a window in window mode */ |
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307 | xwindow->win = XCreateWindow (xcontext->disp, /*xcontext->root, */ |
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308 | RootWindow (xcontext->disp, xcontext->visualinfo->screen), |
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309 | 0, 0, xwindow->width, xwindow->height, 0, xcontext->visualinfo->depth, |
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310 | InputOutput, xcontext->visualinfo->visual, |
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311 | CWBorderPixel | CWColormap | CWEventMask, &xwindow->attr); |
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312 | |
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313 | /* only set window title and handle wm_delete_events if in windowed mode */ |
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314 | wmDelete = XInternAtom (xcontext->disp, "WM_DELETE_WINDOW", True); |
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315 | XSetWMProtocols (xcontext->disp, xwindow->win, &wmDelete, 1); |
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316 | XSetStandardProperties (xcontext->disp, xwindow->win, "glsink", |
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317 | "glsink", None, NULL, 0, NULL); |
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318 | |
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319 | #if 0 |
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320 | XSelectInput (xcontext->disp, xwindow->win, |
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321 | ExposureMask | StructureNotifyMask); |
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322 | #else // we want more than that |
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323 | XSelectInput (glimagesink->xcontext->disp, xwindow->win, ExposureMask | |
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324 | StructureNotifyMask | PointerMotionMask | KeyPressMask | |
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325 | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask); |
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326 | #endif |
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327 | |
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328 | //xwindow->win = XCreateSimpleWindow (glimagesink->xcontext->disp, |
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329 | // glimagesink->xcontext->root, |
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330 | // 0, 0, xwindow->width, xwindow->height, 0, 0, glimagesink->xcontext->black); |
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331 | |
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332 | XMapRaised (glimagesink->xcontext->disp, xwindow->win); |
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333 | |
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334 | /* connect the glx-context to the window */ |
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335 | glXMakeCurrent (xcontext->disp, xwindow->win, xcontext->glx); |
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336 | |
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337 | printf ("Initializing OpenGL parameters\n"); |
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338 | /* initialize OpenGL drawing */ |
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339 | glDisable (GL_DEPTH_TEST); |
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340 | //glShadeModel(GL_SMOOTH); |
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341 | |
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342 | glDisable (GL_TEXTURE_2D); |
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343 | glDisable (GL_CULL_FACE); |
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344 | glClearDepth (1.0f); |
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345 | glClearColor (0, 0.5, 0, 1); |
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346 | |
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347 | // both upload the video, and redraw the screen |
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348 | glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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349 | |
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350 | |
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351 | //glEnable(GL_LIGHT0); // Quick And Dirty Lighting (Assumes Light0 Is Set Up) |
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352 | //glEnable(GL_LIGHTING); // Enable Lighting |
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353 | glDisable (GL_COLOR_MATERIAL); // Enable Material Coloring |
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354 | glEnable (GL_AUTO_NORMAL); // let OpenGL generate the Normals |
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355 | |
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356 | glDisable (GL_BLEND); |
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357 | |
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358 | glPolygonMode (GL_FRONT, GL_FILL); |
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359 | glPolygonMode (GL_BACK, GL_FILL); |
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360 | |
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361 | glShadeModel (GL_SMOOTH); |
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362 | glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); |
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363 | |
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364 | glBindTexture (GL_TEXTURE_2D, 1000); |
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365 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
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366 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
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367 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
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368 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); |
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369 | glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); |
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370 | glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, TEX_XSIZE, TEX_YSIZE, 0, GL_RGBA, |
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371 | GL_UNSIGNED_BYTE, NULL); |
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372 | |
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373 | glXSwapBuffers (xcontext->disp, xwindow->win); |
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374 | |
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375 | g_mutex_unlock (glimagesink->x_lock); |
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376 | |
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377 | gst_x_overlay_got_xwindow_id (GST_X_OVERLAY (glimagesink), xwindow->win); |
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378 | |
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379 | return xwindow; |
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380 | } |
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381 | |
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382 | /* This function destroys a GstGLWindow */ |
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383 | static void |
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384 | gst_glimagesink_xwindow_destroy (GstGLImageSink * glimagesink, |
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385 | GstGLWindow * xwindow) |
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386 | { |
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387 | GstXContext *xcontext = glimagesink->xcontext; |
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388 | |
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389 | g_return_if_fail (xwindow != NULL); |
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390 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
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391 | |
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392 | g_mutex_lock (glimagesink->x_lock); |
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393 | |
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394 | if (glimagesink->signal_handoffs) { |
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395 | g_warning ("NOT DESTROYING any window due to signal_handoff !\n"); |
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396 | return; |
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397 | } |
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398 | |
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399 | if (xcontext->glx) { |
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400 | if (!glXMakeCurrent (xcontext->disp, None, NULL)) { |
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401 | printf ("Could not release drawing context.\n"); |
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402 | } |
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403 | glXDestroyContext (xcontext->disp, xcontext->glx); |
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404 | xcontext->glx = NULL; |
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405 | } |
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406 | #if 0 // not used: prepared for fs mode |
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407 | /* switch back to original desktop resolution if we were in fs */ |
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408 | if (GLWin.fs) { |
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409 | XF86VidModeSwitchToMode (GLWin.dpy, GLWin.screen, &GLWin.deskMode); |
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410 | XF86VidModeSetViewPort (GLWin.dpy, GLWin.screen, 0, 0); |
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411 | } |
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412 | #endif |
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413 | |
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414 | /* If we did not create that window we just free the GC and let it live */ |
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415 | if (xwindow->internal) |
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416 | XDestroyWindow (glimagesink->xcontext->disp, xwindow->win); |
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417 | else |
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418 | XSelectInput (glimagesink->xcontext->disp, xwindow->win, 0); |
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419 | |
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420 | printf ("Check Xwindow destroy !\n"); |
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421 | |
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422 | g_mutex_unlock (glimagesink->x_lock); |
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423 | |
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424 | g_free (xwindow); |
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425 | } |
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426 | |
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427 | /* This function resizes a GstGLWindow */ |
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428 | static void |
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429 | gst_glimagesink_xwindow_resize (GstGLImageSink * glimagesink, |
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430 | GstGLWindow * xwindow, guint width, guint height) |
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431 | { |
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432 | g_return_if_fail (xwindow != NULL); |
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433 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
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434 | |
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435 | g_mutex_lock (glimagesink->x_lock); |
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436 | |
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437 | xwindow->width = width; |
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438 | xwindow->height = height; |
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439 | |
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440 | XResizeWindow (glimagesink->xcontext->disp, xwindow->win, |
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441 | xwindow->width, xwindow->height); |
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442 | |
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443 | printf ("No xwindow resize implemented yet !\n"); |
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444 | |
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445 | g_mutex_unlock (glimagesink->x_lock); |
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446 | } |
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447 | |
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448 | static void |
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449 | gst_glimagesink_xwindow_update_geometry (GstGLImageSink * glimagesink, |
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450 | GstGLWindow * xwindow) |
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451 | { |
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452 | XWindowAttributes attr; |
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453 | |
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454 | g_return_if_fail (xwindow != NULL); |
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455 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
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456 | |
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457 | /* Update the window geometry */ |
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458 | g_mutex_lock (glimagesink->x_lock); |
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459 | XGetWindowAttributes (glimagesink->xcontext->disp, |
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460 | glimagesink->window->win, &attr); |
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461 | g_mutex_unlock (glimagesink->x_lock); |
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462 | |
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463 | // FIXME: Need to introduce OpenGL setup here if PROJECTION_MATRIX depends on width/height |
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464 | //printf("No update geometry implemented yet !\n"); |
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465 | |
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466 | glimagesink->window->width = attr.width; |
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467 | glimagesink->window->height = attr.height; |
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468 | } |
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469 | |
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470 | #if 0 |
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471 | static void |
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472 | gst_glimagesink_renegotiate_size (GstGLImageSink * glimagesink) |
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473 | { |
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474 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
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475 | |
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476 | if (!glimagesink->window) |
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477 | return; |
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478 | |
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479 | gst_glimagesink_xwindow_update_geometry (glimagesink, glimagesink->window); |
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480 | |
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481 | if (glimagesink->window->width <= 1 || glimagesink->window->height <= 1) |
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482 | return; |
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483 | |
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484 | if (GST_PAD_IS_NEGOTIATING (GST_VIDEOSINK_PAD (glimagesink)) || |
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485 | !gst_pad_is_negotiated (GST_VIDEOSINK_PAD (glimagesink))) |
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486 | return; |
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487 | |
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488 | /* Window got resized or moved. We do caps negotiation again to get video |
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489 | scaler to fit that new size only if size of the window differs from our |
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490 | size. */ |
---|
491 | |
---|
492 | if (GST_VIDEOSINK_WIDTH (glimagesink) != glimagesink->window->width || |
---|
493 | GST_VIDEOSINK_HEIGHT (glimagesink) != glimagesink->window->height) { |
---|
494 | GstPadLinkReturn r; |
---|
495 | |
---|
496 | r = gst_pad_try_set_caps (GST_VIDEOSINK_PAD (glimagesink), |
---|
497 | gst_caps_new_simple ("video/x-raw-rgb", |
---|
498 | "bpp", G_TYPE_INT, glimagesink->xcontext->bpp, |
---|
499 | "depth", G_TYPE_INT, glimagesink->xcontext->depth, |
---|
500 | "endianness", G_TYPE_INT, glimagesink->xcontext->endianness, |
---|
501 | "red_mask", G_TYPE_INT, glimagesink->xcontext->visual->red_mask, |
---|
502 | "green_mask", G_TYPE_INT, glimagesink->xcontext->visual->green_mask, |
---|
503 | "blue_mask", G_TYPE_INT, glimagesink->xcontext->visual->blue_mask, |
---|
504 | "width", G_TYPE_INT, glimagesink->window->width, |
---|
505 | "height", G_TYPE_INT, glimagesink->window->height, |
---|
506 | "framerate", G_TYPE_DOUBLE, glimagesink->framerate, NULL)); |
---|
507 | |
---|
508 | if ((r == GST_PAD_LINK_OK) || (r == GST_PAD_LINK_DONE)) { |
---|
509 | /* Renegotiation succeeded, we update our size and image */ |
---|
510 | GST_VIDEOSINK_WIDTH (glimagesink) = glimagesink->window->width; |
---|
511 | GST_VIDEOSINK_HEIGHT (glimagesink) = glimagesink->window->height; |
---|
512 | |
---|
513 | if ((glimagesink->glimage) && |
---|
514 | ((GST_VIDEOSINK_WIDTH (glimagesink) != glimagesink->glimage->width) || |
---|
515 | (GST_VIDEOSINK_HEIGHT (glimagesink) != |
---|
516 | glimagesink->glimage->height))) { |
---|
517 | /* We renew our ximage only if size changed */ |
---|
518 | gst_glimagesink_ximage_destroy (glimagesink, glimagesink->glimage); |
---|
519 | |
---|
520 | glimagesink->glimage = gst_glimagesink_ximage_new (glimagesink, |
---|
521 | GST_VIDEOSINK_WIDTH (glimagesink), |
---|
522 | GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
523 | } |
---|
524 | } |
---|
525 | } |
---|
526 | } |
---|
527 | #endif |
---|
528 | |
---|
529 | /* This function handles XEvents that might be in the queue. It generates |
---|
530 | GstEvent that will be sent upstream in the pipeline to handle interactivity |
---|
531 | and navigation. It will also listen for configure events on the window to |
---|
532 | trigger caps renegotiation so on the fly software scaling can work. */ |
---|
533 | static void |
---|
534 | gst_glimagesink_handle_xevents (GstGLImageSink * glimagesink, GstPad * pad) |
---|
535 | { |
---|
536 | XEvent e; |
---|
537 | |
---|
538 | glimagesink->pointer_moved = FALSE; |
---|
539 | |
---|
540 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
---|
541 | |
---|
542 | //printf("handling xevents\n"); |
---|
543 | |
---|
544 | //gst_glimagesink_renegotiate_size (glimagesink); |
---|
545 | |
---|
546 | /* Then we get all pointer motion events, only the last position is |
---|
547 | interesting. */ |
---|
548 | g_mutex_lock (glimagesink->x_lock); |
---|
549 | while (XCheckWindowEvent (glimagesink->xcontext->disp, |
---|
550 | glimagesink->window->win, PointerMotionMask, &e)) { |
---|
551 | g_mutex_unlock (glimagesink->x_lock); |
---|
552 | |
---|
553 | switch (e.type) { |
---|
554 | case MotionNotify: |
---|
555 | glimagesink->pointer_x = e.xmotion.x; |
---|
556 | glimagesink->pointer_y = e.xmotion.y; |
---|
557 | glimagesink->pointer_moved = TRUE; |
---|
558 | break; |
---|
559 | default: |
---|
560 | break; |
---|
561 | } |
---|
562 | |
---|
563 | g_mutex_lock (glimagesink->x_lock); |
---|
564 | } |
---|
565 | g_mutex_unlock (glimagesink->x_lock); |
---|
566 | |
---|
567 | if (glimagesink->pointer_moved) { |
---|
568 | GST_DEBUG ("glimagesink pointer moved over window at %d,%d", |
---|
569 | glimagesink->pointer_x, glimagesink->pointer_y); |
---|
570 | gst_navigation_send_mouse_event (GST_NAVIGATION (glimagesink), |
---|
571 | "mouse-move", 0, glimagesink->pointer_x, glimagesink->pointer_y); |
---|
572 | } |
---|
573 | |
---|
574 | /* We get all remaining events on our window to throw them upstream */ |
---|
575 | g_mutex_lock (glimagesink->x_lock); |
---|
576 | while (XCheckWindowEvent (glimagesink->xcontext->disp, |
---|
577 | glimagesink->window->win, |
---|
578 | KeyPressMask | KeyReleaseMask | |
---|
579 | ButtonPressMask | ButtonReleaseMask, &e)) { |
---|
580 | KeySym keysym; |
---|
581 | |
---|
582 | /* We lock only for the X function call */ |
---|
583 | g_mutex_unlock (glimagesink->x_lock); |
---|
584 | |
---|
585 | switch (e.type) { |
---|
586 | case ButtonPress: |
---|
587 | /* Mouse button pressed/released over our window. We send upstream |
---|
588 | events for interactivity/navigation */ |
---|
589 | GST_DEBUG ("glimagesink button %d pressed over window at %d,%d", |
---|
590 | e.xbutton.button, e.xbutton.x, e.xbutton.x); |
---|
591 | glimagesink->pointer_button[e.xbutton.button - Button1] = TRUE; |
---|
592 | gst_navigation_send_mouse_event (GST_NAVIGATION (glimagesink), |
---|
593 | "mouse-button-press", e.xbutton.button, e.xbutton.x, e.xbutton.y); |
---|
594 | break; |
---|
595 | case ButtonRelease: |
---|
596 | GST_DEBUG ("glimagesink button %d release over window at %d,%d", |
---|
597 | e.xbutton.button, e.xbutton.x, e.xbutton.x); |
---|
598 | glimagesink->pointer_button[e.xbutton.button - Button1] = FALSE; |
---|
599 | gst_navigation_send_mouse_event (GST_NAVIGATION (glimagesink), |
---|
600 | "mouse-button-release", e.xbutton.button, e.xbutton.x, e.xbutton.y); |
---|
601 | break; |
---|
602 | case KeyPress: |
---|
603 | case KeyRelease: |
---|
604 | /* Key pressed/released over our window. We send upstream |
---|
605 | events for interactivity/navigation */ |
---|
606 | GST_DEBUG ("glimagesink key %d released over window at %d,%d", |
---|
607 | e.xkey.keycode, e.xkey.x, e.xkey.x); |
---|
608 | keysym = XKeycodeToKeysym (glimagesink->xcontext->disp, |
---|
609 | e.xkey.keycode, 0); |
---|
610 | if (keysym != NoSymbol) { |
---|
611 | gst_navigation_send_key_event (GST_NAVIGATION (glimagesink), |
---|
612 | e.type == KeyPress ? |
---|
613 | "key-press" : "key-release", XKeysymToString (keysym)); |
---|
614 | } else { |
---|
615 | gst_navigation_send_key_event (GST_NAVIGATION (glimagesink), |
---|
616 | e.type == KeyPress ? "key-press" : "key-release", "unknown"); |
---|
617 | } |
---|
618 | break; |
---|
619 | default: |
---|
620 | GST_DEBUG ("glimagesink unhandled X event (%d)", e.type); |
---|
621 | } |
---|
622 | |
---|
623 | g_mutex_lock (glimagesink->x_lock); |
---|
624 | } |
---|
625 | g_mutex_unlock (glimagesink->x_lock); |
---|
626 | } |
---|
627 | |
---|
628 | /* attributes for a single buffered visual in RGBA format with at least |
---|
629 | * 4 bits per color and a 16 bit depth buffer */ |
---|
630 | static int attrListSingle[] = { |
---|
631 | GLX_RGBA, |
---|
632 | GLX_RED_SIZE, 4, |
---|
633 | GLX_GREEN_SIZE, 4, |
---|
634 | GLX_BLUE_SIZE, 4, |
---|
635 | GLX_DEPTH_SIZE, 16, |
---|
636 | None |
---|
637 | }; |
---|
638 | |
---|
639 | /* attributes for a double buffered visual in RGBA format with at least |
---|
640 | * 4 bits per color and a 16 bit depth buffer */ |
---|
641 | static int attrListDouble[] = { |
---|
642 | GLX_RGBA, GLX_DOUBLEBUFFER, |
---|
643 | GLX_RED_SIZE, 4, |
---|
644 | GLX_GREEN_SIZE, 4, |
---|
645 | GLX_BLUE_SIZE, 4, |
---|
646 | GLX_DEPTH_SIZE, 16, |
---|
647 | None |
---|
648 | }; |
---|
649 | |
---|
650 | /* This function get the X Display and global infos about it. Everything is |
---|
651 | stored in our object and will be cleaned when the object is finalized. Note |
---|
652 | here that caps for supported format are generated without any window or |
---|
653 | image creation */ |
---|
654 | static GstXContext * |
---|
655 | gst_glimagesink_xcontext_get (GstGLImageSink * glimagesink) |
---|
656 | { |
---|
657 | GstXContext *xcontext = NULL; |
---|
658 | int glxMajorVersion, glxMinorVersion; |
---|
659 | XPixmapFormatValues *px_formats = NULL; |
---|
660 | gint nb_formats = 0, i; |
---|
661 | |
---|
662 | printf ("Acquiring X context\n"); |
---|
663 | |
---|
664 | g_return_val_if_fail (GST_IS_GLIMAGESINK (glimagesink), NULL); |
---|
665 | |
---|
666 | xcontext = g_new0 (GstXContext, 1); |
---|
667 | |
---|
668 | g_mutex_lock (glimagesink->x_lock); |
---|
669 | |
---|
670 | xcontext->disp = XOpenDisplay (glimagesink->display_name); |
---|
671 | |
---|
672 | if (!xcontext->disp) { |
---|
673 | g_mutex_unlock (glimagesink->x_lock); |
---|
674 | g_free (xcontext); |
---|
675 | GST_ELEMENT_ERROR (glimagesink, RESOURCE, TOO_LAZY, (NULL), |
---|
676 | ("Could not open display")); |
---|
677 | return NULL; |
---|
678 | } |
---|
679 | |
---|
680 | xcontext->screen_num = DefaultScreen (xcontext->disp); |
---|
681 | xcontext->screen = DefaultScreenOfDisplay (xcontext->disp); |
---|
682 | |
---|
683 | /* get an appropriate visual */ |
---|
684 | xcontext->visualinfo = |
---|
685 | glXChooseVisual (xcontext->disp, xcontext->screen_num, attrListDouble); |
---|
686 | if (xcontext->visualinfo == NULL) { |
---|
687 | xcontext->visualinfo = |
---|
688 | glXChooseVisual (xcontext->disp, xcontext->screen_num, attrListSingle); |
---|
689 | GST_DEBUG ("Only Singlebuffered Visual!\n"); |
---|
690 | |
---|
691 | if (xcontext->visualinfo == NULL) |
---|
692 | GST_ELEMENT_ERROR (glimagesink, RESOURCE, TOO_LAZY, (NULL), |
---|
693 | ("Could not open GLX connection")); |
---|
694 | } else { |
---|
695 | GST_DEBUG ("Got Doublebuffered Visual!\n"); |
---|
696 | } |
---|
697 | glXQueryVersion (xcontext->disp, &glxMajorVersion, &glxMinorVersion); |
---|
698 | GST_DEBUG ("glX-Version %d.%d\n", glxMajorVersion, glxMinorVersion); |
---|
699 | |
---|
700 | printf ("Creating GLX context\n"); |
---|
701 | |
---|
702 | /* create a GLX context */ |
---|
703 | xcontext->glx = |
---|
704 | glXCreateContext (xcontext->disp, xcontext->visualinfo, 0, GL_TRUE); |
---|
705 | |
---|
706 | if (glXIsDirect (xcontext->disp, xcontext->glx)) |
---|
707 | printf ("Congrats, you have Direct Rendering!\n"); |
---|
708 | else |
---|
709 | printf ("Sorry, no Direct Rendering possible!\n"); |
---|
710 | |
---|
711 | xcontext->endianness = |
---|
712 | (ImageByteOrder (xcontext->disp) == |
---|
713 | LSBFirst) ? G_LITTLE_ENDIAN : G_BIG_ENDIAN; |
---|
714 | |
---|
715 | xcontext->visual = DefaultVisual (xcontext->disp, xcontext->screen_num); |
---|
716 | xcontext->root = DefaultRootWindow (xcontext->disp); |
---|
717 | |
---|
718 | #if 1 |
---|
719 | |
---|
720 | xcontext->white = XWhitePixel (xcontext->disp, xcontext->screen_num); |
---|
721 | xcontext->black = XBlackPixel (xcontext->disp, xcontext->screen_num); |
---|
722 | xcontext->depth = DefaultDepthOfScreen (xcontext->screen); |
---|
723 | |
---|
724 | /* We get supported pixmap formats at supported depth */ |
---|
725 | px_formats = XListPixmapFormats (xcontext->disp, &nb_formats); |
---|
726 | |
---|
727 | if (!px_formats) { |
---|
728 | XCloseDisplay (xcontext->disp); |
---|
729 | g_mutex_unlock (glimagesink->x_lock); |
---|
730 | g_free (xcontext); |
---|
731 | return NULL; |
---|
732 | } |
---|
733 | |
---|
734 | /* We get bpp value corresponding to our running depth */ |
---|
735 | for (i = 0; i < nb_formats; i++) { |
---|
736 | if (px_formats[i].depth == xcontext->depth) |
---|
737 | xcontext->bpp = px_formats[i].bits_per_pixel; |
---|
738 | } |
---|
739 | |
---|
740 | XFree (px_formats); |
---|
741 | #endif |
---|
742 | |
---|
743 | /* our caps system handles 24/32bpp RGB as big-endian. */ |
---|
744 | if ((xcontext->bpp == 24 || xcontext->bpp == 32) && |
---|
745 | xcontext->endianness == G_LITTLE_ENDIAN) { |
---|
746 | xcontext->endianness = G_BIG_ENDIAN; |
---|
747 | xcontext->visual->red_mask = GUINT32_TO_BE (xcontext->visual->red_mask); |
---|
748 | xcontext->visual->green_mask = GUINT32_TO_BE (xcontext->visual->green_mask); |
---|
749 | xcontext->visual->blue_mask = GUINT32_TO_BE (xcontext->visual->blue_mask); |
---|
750 | if (xcontext->bpp == 24) { |
---|
751 | xcontext->visual->red_mask >>= 8; |
---|
752 | xcontext->visual->green_mask >>= 8; |
---|
753 | xcontext->visual->blue_mask >>= 8; |
---|
754 | } |
---|
755 | } |
---|
756 | |
---|
757 | xcontext->endianness = G_BIG_ENDIAN; |
---|
758 | xcontext->visual->red_mask = 0xff0000; |
---|
759 | xcontext->visual->green_mask = 0xff00; |
---|
760 | xcontext->visual->blue_mask = 0xff; |
---|
761 | xcontext->bpp = 24; |
---|
762 | xcontext->depth = 24; |
---|
763 | |
---|
764 | //char yuvformat[4] = {'Y', 'V', '1', '2'}; |
---|
765 | |
---|
766 | if (!glimagesink->signal_handoffs) |
---|
767 | xcontext->caps = gst_caps_new_simple ("video/x-raw-rgb", |
---|
768 | "bpp", G_TYPE_INT, xcontext->bpp, |
---|
769 | "depth", G_TYPE_INT, xcontext->depth, |
---|
770 | "endianness", G_TYPE_INT, xcontext->endianness, |
---|
771 | "red_mask", G_TYPE_INT, xcontext->visual->red_mask, |
---|
772 | "green_mask", G_TYPE_INT, xcontext->visual->green_mask, |
---|
773 | "blue_mask", G_TYPE_INT, xcontext->visual->blue_mask, |
---|
774 | "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, |
---|
775 | "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, |
---|
776 | "framerate", GST_TYPE_DOUBLE_RANGE, 1.0, 100.0, NULL); |
---|
777 | else |
---|
778 | xcontext->caps = gst_caps_new_simple ("video/x-raw-yuv", |
---|
779 | // "format", GST_TYPE_FOURCC, GST_PROPS_FOURCC (GST_STR_FOURCC ("YV12")), |
---|
780 | "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, |
---|
781 | "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, |
---|
782 | "framerate", GST_TYPE_DOUBLE_RANGE, 1.0, 100.0, NULL); |
---|
783 | |
---|
784 | g_mutex_unlock (glimagesink->x_lock); |
---|
785 | |
---|
786 | return xcontext; |
---|
787 | } |
---|
788 | |
---|
789 | /* This function cleans the X context. Closing the Display and unrefing the |
---|
790 | caps for supported formats. */ |
---|
791 | static void |
---|
792 | gst_glimagesink_xcontext_clear (GstGLImageSink * glimagesink) |
---|
793 | { |
---|
794 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
---|
795 | |
---|
796 | gst_caps_free (glimagesink->xcontext->caps); |
---|
797 | |
---|
798 | g_mutex_lock (glimagesink->x_lock); |
---|
799 | |
---|
800 | XCloseDisplay (glimagesink->xcontext->disp); |
---|
801 | |
---|
802 | g_mutex_unlock (glimagesink->x_lock); |
---|
803 | |
---|
804 | glimagesink->xcontext = NULL; |
---|
805 | } |
---|
806 | |
---|
807 | static void |
---|
808 | gst_glimagesink_imagepool_clear (GstGLImageSink * glimagesink) |
---|
809 | { |
---|
810 | g_mutex_lock (glimagesink->pool_lock); |
---|
811 | |
---|
812 | while (glimagesink->image_pool) { |
---|
813 | GstGLImage *ximage = glimagesink->image_pool->data; |
---|
814 | |
---|
815 | glimagesink->image_pool = g_slist_delete_link (glimagesink->image_pool, |
---|
816 | glimagesink->image_pool); |
---|
817 | gst_glimagesink_ximage_destroy (glimagesink, ximage); |
---|
818 | } |
---|
819 | |
---|
820 | g_mutex_unlock (glimagesink->pool_lock); |
---|
821 | } |
---|
822 | |
---|
823 | /* |
---|
824 | ================= |
---|
825 | Element stuff |
---|
826 | ================= |
---|
827 | */ |
---|
828 | |
---|
829 | static GstCaps * |
---|
830 | gst_glimagesink_fixate (GstPad * pad, const GstCaps * caps) |
---|
831 | { |
---|
832 | GstStructure *structure; |
---|
833 | GstCaps *newcaps; |
---|
834 | |
---|
835 | printf ("Linking the sink\n"); |
---|
836 | |
---|
837 | if (gst_caps_get_size (caps) > 1) |
---|
838 | return NULL; |
---|
839 | |
---|
840 | newcaps = gst_caps_copy (caps); |
---|
841 | structure = gst_caps_get_structure (newcaps, 0); |
---|
842 | |
---|
843 | if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 320)) { |
---|
844 | return newcaps; |
---|
845 | } |
---|
846 | if (gst_caps_structure_fixate_field_nearest_int (structure, "height", 240)) { |
---|
847 | return newcaps; |
---|
848 | } |
---|
849 | if (gst_caps_structure_fixate_field_nearest_double (structure, "framerate", |
---|
850 | 30.0)) { |
---|
851 | return newcaps; |
---|
852 | } |
---|
853 | |
---|
854 | gst_caps_free (newcaps); |
---|
855 | return NULL; |
---|
856 | } |
---|
857 | |
---|
858 | static GstCaps * |
---|
859 | gst_glimagesink_getcaps (GstPad * pad) |
---|
860 | { |
---|
861 | GstGLImageSink *glimagesink; |
---|
862 | |
---|
863 | glimagesink = GST_GLIMAGESINK (gst_pad_get_parent (pad)); |
---|
864 | |
---|
865 | if (glimagesink->xcontext) |
---|
866 | return gst_caps_copy (glimagesink->xcontext->caps); |
---|
867 | |
---|
868 | #if 0 |
---|
869 | if (!glimagesink->signal_handoffs) |
---|
870 | return gst_caps_from_string ("video/x-raw-rgb, " |
---|
871 | "framerate = (double) [ 1, 100 ], " |
---|
872 | "width = (int) [ 0, MAX ], " "height = (int) [ 0, MAX ]"); |
---|
873 | else |
---|
874 | #endif |
---|
875 | return gst_caps_from_string ("video/x-raw-yuv, " |
---|
876 | "framerate = (double) [ 1, 100 ], " |
---|
877 | "width = (int) [ 0, MAX ], " "height = (int) [ 0, MAX ]"); |
---|
878 | } |
---|
879 | |
---|
880 | static GstPadLinkReturn |
---|
881 | gst_glimagesink_sink_link (GstPad * pad, const GstCaps * caps) |
---|
882 | { |
---|
883 | GstGLImageSink *glimagesink; |
---|
884 | gboolean ret; |
---|
885 | GstStructure *structure; |
---|
886 | |
---|
887 | glimagesink = GST_GLIMAGESINK (gst_pad_get_parent (pad)); |
---|
888 | |
---|
889 | if (!glimagesink->xcontext) |
---|
890 | return GST_PAD_LINK_DELAYED; |
---|
891 | |
---|
892 | GST_DEBUG_OBJECT (glimagesink, |
---|
893 | "sinkconnect possible caps %" GST_PTR_FORMAT " with given caps %" |
---|
894 | GST_PTR_FORMAT, glimagesink->xcontext->caps, caps); |
---|
895 | |
---|
896 | structure = gst_caps_get_structure (caps, 0); |
---|
897 | ret = gst_structure_get_int (structure, "width", |
---|
898 | &(GST_VIDEOSINK_WIDTH (glimagesink))); |
---|
899 | ret &= gst_structure_get_int (structure, "height", |
---|
900 | &(GST_VIDEOSINK_HEIGHT (glimagesink))); |
---|
901 | ret &= gst_structure_get_double (structure, |
---|
902 | "framerate", &glimagesink->framerate); |
---|
903 | if (!ret) |
---|
904 | return GST_PAD_LINK_REFUSED; |
---|
905 | |
---|
906 | glimagesink->pixel_width = 1; |
---|
907 | gst_structure_get_int (structure, "pixel_width", &glimagesink->pixel_width); |
---|
908 | |
---|
909 | glimagesink->pixel_height = 1; |
---|
910 | gst_structure_get_int (structure, "pixel_height", &glimagesink->pixel_height); |
---|
911 | |
---|
912 | /* Creating our window and our image */ |
---|
913 | if (!glimagesink->window) |
---|
914 | glimagesink->window = gst_glimagesink_xwindow_new (glimagesink, |
---|
915 | GST_VIDEOSINK_WIDTH (glimagesink), GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
916 | else { |
---|
917 | if (glimagesink->window->internal) |
---|
918 | gst_glimagesink_xwindow_resize (glimagesink, glimagesink->window, |
---|
919 | GST_VIDEOSINK_WIDTH (glimagesink), |
---|
920 | GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
921 | } |
---|
922 | |
---|
923 | if ((glimagesink->glimage) && ((GST_VIDEOSINK_WIDTH (glimagesink) != glimagesink->glimage->width) || (GST_VIDEOSINK_HEIGHT (glimagesink) != glimagesink->glimage->height))) { /* We renew our ximage only if size changed */ |
---|
924 | gst_glimagesink_ximage_destroy (glimagesink, glimagesink->glimage); |
---|
925 | |
---|
926 | glimagesink->glimage = gst_glimagesink_ximage_new (glimagesink, |
---|
927 | GST_VIDEOSINK_WIDTH (glimagesink), GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
928 | } else if (!glimagesink->glimage) /* If no ximage, creating one */ |
---|
929 | glimagesink->glimage = gst_glimagesink_ximage_new (glimagesink, |
---|
930 | GST_VIDEOSINK_WIDTH (glimagesink), GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
931 | |
---|
932 | gst_x_overlay_got_desired_size (GST_X_OVERLAY (glimagesink), |
---|
933 | GST_VIDEOSINK_WIDTH (glimagesink), GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
934 | |
---|
935 | return GST_PAD_LINK_OK; |
---|
936 | } |
---|
937 | |
---|
938 | static GstElementStateReturn |
---|
939 | gst_glimagesink_change_state (GstElement * element) |
---|
940 | { |
---|
941 | GstGLImageSink *glimagesink; |
---|
942 | |
---|
943 | printf ("change state\n"); |
---|
944 | |
---|
945 | glimagesink = GST_GLIMAGESINK (element); |
---|
946 | |
---|
947 | switch (GST_STATE_TRANSITION (element)) { |
---|
948 | case GST_STATE_NULL_TO_READY: |
---|
949 | /* Initializing the XContext */ |
---|
950 | if (!glimagesink->xcontext) { |
---|
951 | glimagesink->xcontext = gst_glimagesink_xcontext_get (glimagesink); |
---|
952 | if (!glimagesink->xcontext) |
---|
953 | return GST_STATE_FAILURE; |
---|
954 | } |
---|
955 | printf ("null to ready done\n"); |
---|
956 | break; |
---|
957 | case GST_STATE_READY_TO_PAUSED: |
---|
958 | printf ("ready to paused\n"); |
---|
959 | //if (glimagesink->window) // not needed with OpenGL |
---|
960 | // gst_glimagesink_xwindow_clear (glimagesink, glimagesink->window); |
---|
961 | glimagesink->time = 0; |
---|
962 | break; |
---|
963 | case GST_STATE_PAUSED_TO_PLAYING: |
---|
964 | break; |
---|
965 | case GST_STATE_PLAYING_TO_PAUSED: |
---|
966 | break; |
---|
967 | case GST_STATE_PAUSED_TO_READY: |
---|
968 | glimagesink->framerate = 0; |
---|
969 | GST_VIDEOSINK_WIDTH (glimagesink) = 0; |
---|
970 | GST_VIDEOSINK_HEIGHT (glimagesink) = 0; |
---|
971 | break; |
---|
972 | case GST_STATE_READY_TO_NULL: |
---|
973 | if (glimagesink->glimage) { |
---|
974 | gst_glimagesink_ximage_destroy (glimagesink, glimagesink->glimage); |
---|
975 | glimagesink->glimage = NULL; |
---|
976 | } |
---|
977 | |
---|
978 | if (glimagesink->image_pool) |
---|
979 | gst_glimagesink_imagepool_clear (glimagesink); |
---|
980 | |
---|
981 | if (glimagesink->window) { |
---|
982 | gst_glimagesink_xwindow_destroy (glimagesink, glimagesink->window); |
---|
983 | glimagesink->window = NULL; |
---|
984 | } |
---|
985 | |
---|
986 | if (glimagesink->xcontext) { |
---|
987 | gst_glimagesink_xcontext_clear (glimagesink); |
---|
988 | glimagesink->xcontext = NULL; |
---|
989 | } |
---|
990 | break; |
---|
991 | } |
---|
992 | |
---|
993 | if (GST_ELEMENT_CLASS (parent_class)->change_state) |
---|
994 | return GST_ELEMENT_CLASS (parent_class)->change_state (element); |
---|
995 | |
---|
996 | return GST_STATE_SUCCESS; |
---|
997 | } |
---|
998 | |
---|
999 | static void |
---|
1000 | gst_glimagesink_chain (GstPad * pad, GstData * data) |
---|
1001 | { |
---|
1002 | GstBuffer *buf = GST_BUFFER (data); |
---|
1003 | GstGLImageSink *glimagesink; |
---|
1004 | |
---|
1005 | //printf("CHAIN CALL\n"); |
---|
1006 | |
---|
1007 | g_return_if_fail (GST_IS_PAD (pad)); |
---|
1008 | g_return_if_fail (buf != NULL); |
---|
1009 | |
---|
1010 | glimagesink = GST_GLIMAGESINK (gst_pad_get_parent (pad)); |
---|
1011 | |
---|
1012 | if (GST_IS_EVENT (data)) { |
---|
1013 | gst_pad_event_default (pad, GST_EVENT (data)); |
---|
1014 | return; |
---|
1015 | } |
---|
1016 | |
---|
1017 | buf = GST_BUFFER (data); |
---|
1018 | /* update time */ |
---|
1019 | if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) { |
---|
1020 | glimagesink->time = GST_BUFFER_TIMESTAMP (buf); |
---|
1021 | } |
---|
1022 | |
---|
1023 | if (glimagesink->signal_handoffs) |
---|
1024 | g_signal_emit (G_OBJECT (glimagesink), |
---|
1025 | gst_glimagesink_signals[SIGNAL_HANDOFF], 0, buf, pad); |
---|
1026 | else { |
---|
1027 | /* If this buffer has been allocated using our buffer management we simply |
---|
1028 | put the ximage which is in the PRIVATE pointer */ |
---|
1029 | if (GST_BUFFER_FREE_DATA_FUNC (buf) == gst_glimagesink_buffer_free) |
---|
1030 | gst_glimagesink_ximage_put (glimagesink, GST_BUFFER_PRIVATE (buf)); |
---|
1031 | else { /* Else we have to copy the data into our private image, */ |
---|
1032 | /* if we have one... */ |
---|
1033 | printf ("Non-locally allocated: Sub-optimal buffer transfer!\n"); |
---|
1034 | if (glimagesink->glimage) { |
---|
1035 | #if 0 |
---|
1036 | memcpy (glimagesink->glimage->ximage->data, |
---|
1037 | GST_BUFFER_DATA (buf), |
---|
1038 | MIN (GST_BUFFER_SIZE (buf), glimagesink->glimage->size)); |
---|
1039 | #endif |
---|
1040 | gst_glimagesink_ximage_put (glimagesink, glimagesink->glimage); |
---|
1041 | } else { /* No image available. Something went wrong during capsnego ! */ |
---|
1042 | |
---|
1043 | gst_buffer_unref (buf); |
---|
1044 | GST_ELEMENT_ERROR (glimagesink, CORE, NEGOTIATION, (NULL), |
---|
1045 | ("no format defined before chain function")); |
---|
1046 | return; |
---|
1047 | } |
---|
1048 | } |
---|
1049 | } |
---|
1050 | |
---|
1051 | GST_DEBUG ("clock wait: %" GST_TIME_FORMAT, |
---|
1052 | GST_TIME_ARGS (glimagesink->time)); |
---|
1053 | |
---|
1054 | /// ah, BTW, I think the gst_element_wait should happen _before_ the ximage is shown |
---|
1055 | if (GST_VIDEOSINK_CLOCK (glimagesink)) |
---|
1056 | gst_element_wait (GST_ELEMENT (glimagesink), glimagesink->time); |
---|
1057 | |
---|
1058 | /* set correct time for next buffer */ |
---|
1059 | if (!GST_BUFFER_TIMESTAMP_IS_VALID (buf) && glimagesink->framerate > 0) |
---|
1060 | glimagesink->time += GST_SECOND / glimagesink->framerate; |
---|
1061 | |
---|
1062 | gst_buffer_unref (buf); |
---|
1063 | |
---|
1064 | if (!glimagesink->signal_handoffs) |
---|
1065 | gst_glimagesink_handle_xevents (glimagesink, pad); |
---|
1066 | } |
---|
1067 | |
---|
1068 | /* Buffer management */ |
---|
1069 | |
---|
1070 | static void |
---|
1071 | gst_glimagesink_buffer_free (GstBuffer * buffer) |
---|
1072 | { |
---|
1073 | GstGLImageSink *glimagesink; |
---|
1074 | GstGLImage *ximage; |
---|
1075 | |
---|
1076 | ximage = GST_BUFFER_PRIVATE (buffer); |
---|
1077 | |
---|
1078 | g_assert (GST_IS_GLIMAGESINK (ximage->glimagesink)); |
---|
1079 | glimagesink = ximage->glimagesink; |
---|
1080 | |
---|
1081 | /* If our geometry changed we can't reuse that image. */ |
---|
1082 | if ((ximage->width != GST_VIDEOSINK_WIDTH (glimagesink)) || |
---|
1083 | (ximage->height != GST_VIDEOSINK_HEIGHT (glimagesink))) |
---|
1084 | gst_glimagesink_ximage_destroy (glimagesink, ximage); |
---|
1085 | else { /* In that case we can reuse the image and add it to our image pool. */ |
---|
1086 | |
---|
1087 | g_mutex_lock (glimagesink->pool_lock); |
---|
1088 | glimagesink->image_pool = g_slist_prepend (glimagesink->image_pool, ximage); |
---|
1089 | g_mutex_unlock (glimagesink->pool_lock); |
---|
1090 | } |
---|
1091 | } |
---|
1092 | |
---|
1093 | static GstBuffer * |
---|
1094 | gst_glimagesink_buffer_alloc (GstPad * pad, guint64 offset, guint size) |
---|
1095 | { |
---|
1096 | GstGLImageSink *glimagesink; |
---|
1097 | GstBuffer *buffer; |
---|
1098 | GstGLImage *ximage = NULL; |
---|
1099 | gboolean not_found = TRUE; |
---|
1100 | |
---|
1101 | //printf("Allocating new data buffer\n"); |
---|
1102 | |
---|
1103 | glimagesink = GST_GLIMAGESINK (gst_pad_get_parent (pad)); |
---|
1104 | |
---|
1105 | g_mutex_lock (glimagesink->pool_lock); |
---|
1106 | |
---|
1107 | /* Walking through the pool cleaning unsuable images and searching for a |
---|
1108 | suitable one */ |
---|
1109 | while (not_found && glimagesink->image_pool) { |
---|
1110 | ximage = glimagesink->image_pool->data; |
---|
1111 | |
---|
1112 | if (ximage) { |
---|
1113 | /* Removing from the pool */ |
---|
1114 | glimagesink->image_pool = g_slist_delete_link (glimagesink->image_pool, |
---|
1115 | glimagesink->image_pool); |
---|
1116 | |
---|
1117 | if ((ximage->width != GST_VIDEOSINK_WIDTH (glimagesink)) || (ximage->height != GST_VIDEOSINK_HEIGHT (glimagesink))) { /* This image is unusable. Destroying... */ |
---|
1118 | gst_glimagesink_ximage_destroy (glimagesink, ximage); |
---|
1119 | ximage = NULL; |
---|
1120 | } else { /* We found a suitable image */ |
---|
1121 | |
---|
1122 | break; |
---|
1123 | } |
---|
1124 | } |
---|
1125 | } |
---|
1126 | |
---|
1127 | g_mutex_unlock (glimagesink->pool_lock); |
---|
1128 | |
---|
1129 | if (!ximage) { /* We found no suitable image in the pool. Creating... */ |
---|
1130 | ximage = gst_glimagesink_ximage_new (glimagesink, |
---|
1131 | GST_VIDEOSINK_WIDTH (glimagesink), GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
1132 | } |
---|
1133 | |
---|
1134 | if (ximage) { |
---|
1135 | buffer = gst_buffer_new (); |
---|
1136 | |
---|
1137 | /* Storing some pointers in the buffer */ |
---|
1138 | GST_BUFFER_PRIVATE (buffer) = ximage; |
---|
1139 | |
---|
1140 | GST_BUFFER_DATA (buffer) = ximage->data; |
---|
1141 | GST_BUFFER_FREE_DATA_FUNC (buffer) = gst_glimagesink_buffer_free; |
---|
1142 | GST_BUFFER_SIZE (buffer) = ximage->size; |
---|
1143 | return buffer; |
---|
1144 | } else |
---|
1145 | return NULL; |
---|
1146 | } |
---|
1147 | |
---|
1148 | /* Interfaces stuff */ |
---|
1149 | |
---|
1150 | static gboolean |
---|
1151 | gst_glimagesink_interface_supported (GstImplementsInterface * iface, GType type) |
---|
1152 | { |
---|
1153 | g_assert (type == GST_TYPE_NAVIGATION || type == GST_TYPE_X_OVERLAY); |
---|
1154 | return TRUE; |
---|
1155 | } |
---|
1156 | |
---|
1157 | static void |
---|
1158 | gst_glimagesink_interface_init (GstImplementsInterfaceClass * klass) |
---|
1159 | { |
---|
1160 | klass->supported = gst_glimagesink_interface_supported; |
---|
1161 | } |
---|
1162 | |
---|
1163 | static void |
---|
1164 | gst_glimagesink_navigation_send_event (GstNavigation * navigation, |
---|
1165 | GstStructure * structure) |
---|
1166 | { |
---|
1167 | GstGLImageSink *glimagesink = GST_GLIMAGESINK (navigation); |
---|
1168 | GstEvent *event; |
---|
1169 | gint x_offset, y_offset; |
---|
1170 | double x, y; |
---|
1171 | |
---|
1172 | event = gst_event_new (GST_EVENT_NAVIGATION); |
---|
1173 | event->event_data.structure.structure = structure; |
---|
1174 | |
---|
1175 | /* We are not converting the pointer coordinates as there's no hardware |
---|
1176 | scaling done here. The only possible scaling is done by videoscale and |
---|
1177 | videoscale will have to catch those events and tranform the coordinates |
---|
1178 | to match the applied scaling. So here we just add the offset if the image |
---|
1179 | is centered in the window. */ |
---|
1180 | |
---|
1181 | x_offset = glimagesink->window->width - GST_VIDEOSINK_WIDTH (glimagesink); |
---|
1182 | y_offset = glimagesink->window->height - GST_VIDEOSINK_HEIGHT (glimagesink); |
---|
1183 | |
---|
1184 | if (gst_structure_get_double (structure, "pointer_x", &x)) { |
---|
1185 | x += x_offset; |
---|
1186 | gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, x, NULL); |
---|
1187 | } |
---|
1188 | if (gst_structure_get_double (structure, "pointer_y", &y)) { |
---|
1189 | y += y_offset; |
---|
1190 | gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE, y, NULL); |
---|
1191 | } |
---|
1192 | |
---|
1193 | gst_pad_send_event (gst_pad_get_peer (GST_VIDEOSINK_PAD (glimagesink)), |
---|
1194 | event); |
---|
1195 | } |
---|
1196 | |
---|
1197 | static void |
---|
1198 | gst_glimagesink_navigation_init (GstNavigationInterface * iface) |
---|
1199 | { |
---|
1200 | iface->send_event = gst_glimagesink_navigation_send_event; |
---|
1201 | } |
---|
1202 | |
---|
1203 | static void |
---|
1204 | gst_glimagesink_set_xwindow_id (GstXOverlay * overlay, XID xwindow_id) |
---|
1205 | { |
---|
1206 | GstGLImageSink *glimagesink = GST_GLIMAGESINK (overlay); |
---|
1207 | GstGLWindow *xwindow = NULL; |
---|
1208 | XWindowAttributes attr; |
---|
1209 | |
---|
1210 | printf ("set_xwindow_id\n"); |
---|
1211 | |
---|
1212 | g_return_if_fail (GST_IS_GLIMAGESINK (glimagesink)); |
---|
1213 | |
---|
1214 | /* If we already use that window return */ |
---|
1215 | if (glimagesink->window && (xwindow_id == glimagesink->window->win)) |
---|
1216 | return; |
---|
1217 | |
---|
1218 | /* If the element has not initialized the X11 context try to do so */ |
---|
1219 | if (!glimagesink->xcontext) |
---|
1220 | glimagesink->xcontext = gst_glimagesink_xcontext_get (glimagesink); |
---|
1221 | |
---|
1222 | if (!glimagesink->xcontext) { |
---|
1223 | g_warning ("glimagesink was unable to obtain the X11 context."); |
---|
1224 | return; |
---|
1225 | } |
---|
1226 | |
---|
1227 | /* Clear image pool as the images are unusable anyway */ |
---|
1228 | gst_glimagesink_imagepool_clear (glimagesink); |
---|
1229 | |
---|
1230 | /* Clear the ximage */ |
---|
1231 | if (glimagesink->glimage) { |
---|
1232 | gst_glimagesink_ximage_destroy (glimagesink, glimagesink->glimage); |
---|
1233 | glimagesink->glimage = NULL; |
---|
1234 | } |
---|
1235 | |
---|
1236 | /* If a window is there already we destroy it */ |
---|
1237 | if (glimagesink->window) { |
---|
1238 | gst_glimagesink_xwindow_destroy (glimagesink, glimagesink->window); |
---|
1239 | glimagesink->window = NULL; |
---|
1240 | } |
---|
1241 | |
---|
1242 | /* If the xid is 0 we go back to an internal window */ |
---|
1243 | if (xwindow_id == 0) { |
---|
1244 | /* If no width/height caps nego did not happen window will be created |
---|
1245 | during caps nego then */ |
---|
1246 | if (GST_VIDEOSINK_WIDTH (glimagesink) && GST_VIDEOSINK_HEIGHT (glimagesink)) { |
---|
1247 | xwindow = gst_glimagesink_xwindow_new (glimagesink, |
---|
1248 | GST_VIDEOSINK_WIDTH (glimagesink), |
---|
1249 | GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
1250 | } |
---|
1251 | } else { |
---|
1252 | GST_ELEMENT_ERROR (glimagesink, RESOURCE, TOO_LAZY, (NULL), |
---|
1253 | ("glimagesink is incapable of connecting to other X windows !")); |
---|
1254 | exit (100); |
---|
1255 | |
---|
1256 | xwindow = g_new0 (GstGLWindow, 1); |
---|
1257 | |
---|
1258 | xwindow->win = xwindow_id; |
---|
1259 | |
---|
1260 | /* We get window geometry, set the event we want to receive, |
---|
1261 | and create a GC */ |
---|
1262 | g_mutex_lock (glimagesink->x_lock); |
---|
1263 | XGetWindowAttributes (glimagesink->xcontext->disp, xwindow->win, &attr); |
---|
1264 | xwindow->width = attr.width; |
---|
1265 | xwindow->height = attr.height; |
---|
1266 | xwindow->internal = FALSE; |
---|
1267 | XSelectInput (glimagesink->xcontext->disp, xwindow->win, ExposureMask | |
---|
1268 | StructureNotifyMask | PointerMotionMask | KeyPressMask | |
---|
1269 | KeyReleaseMask); |
---|
1270 | |
---|
1271 | //xwindow->gc = XCreateGC (glimagesink->xcontext->disp, xwindow->win, 0, NULL); |
---|
1272 | g_mutex_unlock (glimagesink->x_lock); |
---|
1273 | |
---|
1274 | /* If that new window geometry differs from our one we try to |
---|
1275 | renegotiate caps */ |
---|
1276 | if (gst_pad_is_negotiated (GST_VIDEOSINK_PAD (glimagesink)) && |
---|
1277 | (xwindow->width != GST_VIDEOSINK_WIDTH (glimagesink) || |
---|
1278 | xwindow->height != GST_VIDEOSINK_HEIGHT (glimagesink))) { |
---|
1279 | GstPadLinkReturn r; |
---|
1280 | |
---|
1281 | r = gst_pad_try_set_caps (GST_VIDEOSINK_PAD (glimagesink), |
---|
1282 | gst_caps_new_simple ("video/x-raw-rgb", |
---|
1283 | "bpp", G_TYPE_INT, glimagesink->xcontext->bpp, |
---|
1284 | "depth", G_TYPE_INT, glimagesink->xcontext->depth, |
---|
1285 | "endianness", G_TYPE_INT, glimagesink->xcontext->endianness, |
---|
1286 | "red_mask", G_TYPE_INT, glimagesink->xcontext->visual->red_mask, |
---|
1287 | "green_mask", G_TYPE_INT, |
---|
1288 | glimagesink->xcontext->visual->green_mask, "blue_mask", |
---|
1289 | G_TYPE_INT, glimagesink->xcontext->visual->blue_mask, "width", |
---|
1290 | G_TYPE_INT, xwindow->width, "height", G_TYPE_INT, xwindow->height, |
---|
1291 | "framerate", G_TYPE_DOUBLE, glimagesink->framerate, NULL)); |
---|
1292 | |
---|
1293 | /* If caps nego succeded updating our size */ |
---|
1294 | if ((r == GST_PAD_LINK_OK) || (r == GST_PAD_LINK_DONE)) { |
---|
1295 | GST_VIDEOSINK_WIDTH (glimagesink) = xwindow->width; |
---|
1296 | GST_VIDEOSINK_HEIGHT (glimagesink) = xwindow->height; |
---|
1297 | } |
---|
1298 | } |
---|
1299 | } |
---|
1300 | |
---|
1301 | /* Recreating our ximage */ |
---|
1302 | if (!glimagesink->glimage && |
---|
1303 | GST_VIDEOSINK_WIDTH (glimagesink) && GST_VIDEOSINK_HEIGHT (glimagesink)) { |
---|
1304 | glimagesink->glimage = gst_glimagesink_ximage_new (glimagesink, |
---|
1305 | GST_VIDEOSINK_WIDTH (glimagesink), GST_VIDEOSINK_HEIGHT (glimagesink)); |
---|
1306 | } |
---|
1307 | |
---|
1308 | if (xwindow) |
---|
1309 | glimagesink->window = xwindow; |
---|
1310 | } |
---|
1311 | |
---|
1312 | static void |
---|
1313 | gst_glimagesink_get_desired_size (GstXOverlay * overlay, |
---|
1314 | guint * width, guint * height) |
---|
1315 | { |
---|
1316 | GstGLImageSink *glimagesink = GST_GLIMAGESINK (overlay); |
---|
1317 | |
---|
1318 | *width = GST_VIDEOSINK_WIDTH (glimagesink); |
---|
1319 | *height = GST_VIDEOSINK_HEIGHT (glimagesink); |
---|
1320 | } |
---|
1321 | |
---|
1322 | static void |
---|
1323 | gst_glimagesink_expose (GstXOverlay * overlay) |
---|
1324 | { |
---|
1325 | GstGLImageSink *glimagesink = GST_GLIMAGESINK (overlay); |
---|
1326 | |
---|
1327 | if (!glimagesink->window) |
---|
1328 | return; |
---|
1329 | |
---|
1330 | gst_glimagesink_xwindow_update_geometry (glimagesink, glimagesink->window); |
---|
1331 | |
---|
1332 | /* We don't act on internal window from outside that could cause some thread |
---|
1333 | race with the video sink own thread checking for configure event */ |
---|
1334 | if (glimagesink->window->internal) |
---|
1335 | return; |
---|
1336 | |
---|
1337 | //gst_glimagesink_xwindow_clear (glimagesink, glimagesink->window); |
---|
1338 | |
---|
1339 | if (glimagesink->cur_image) |
---|
1340 | gst_glimagesink_ximage_put (glimagesink, glimagesink->cur_image); |
---|
1341 | } |
---|
1342 | |
---|
1343 | static void |
---|
1344 | gst_glimagesink_xoverlay_init (GstXOverlayClass * iface) |
---|
1345 | { |
---|
1346 | iface->set_xwindow_id = gst_glimagesink_set_xwindow_id; |
---|
1347 | iface->get_desired_size = gst_glimagesink_get_desired_size; |
---|
1348 | iface->expose = gst_glimagesink_expose; |
---|
1349 | } |
---|
1350 | |
---|
1351 | /* =========================================== */ |
---|
1352 | /* */ |
---|
1353 | /* Init & Class init */ |
---|
1354 | /* */ |
---|
1355 | /* =========================================== */ |
---|
1356 | |
---|
1357 | static void |
---|
1358 | gst_glimagesink_set_property (GObject * object, guint prop_id, |
---|
1359 | const GValue * value, GParamSpec * pspec) |
---|
1360 | { |
---|
1361 | GstGLImageSink *glimagesink; |
---|
1362 | |
---|
1363 | g_return_if_fail (GST_IS_GLIMAGESINK (object)); |
---|
1364 | |
---|
1365 | glimagesink = GST_GLIMAGESINK (object); |
---|
1366 | |
---|
1367 | switch (prop_id) { |
---|
1368 | case ARG_DISPLAY: |
---|
1369 | glimagesink->display_name = g_strdup (g_value_get_string (value)); |
---|
1370 | break; |
---|
1371 | case ARG_SYNCHRONOUS: |
---|
1372 | glimagesink->synchronous = g_value_get_boolean (value); |
---|
1373 | if (glimagesink->xcontext) { |
---|
1374 | XSynchronize (glimagesink->xcontext->disp, glimagesink->synchronous); |
---|
1375 | case ARG_SIGNAL_HANDOFFS: |
---|
1376 | glimagesink->signal_handoffs = g_value_get_boolean (value); |
---|
1377 | break; |
---|
1378 | } |
---|
1379 | break; |
---|
1380 | default: |
---|
1381 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
---|
1382 | break; |
---|
1383 | } |
---|
1384 | } |
---|
1385 | |
---|
1386 | static void |
---|
1387 | gst_glimagesink_get_property (GObject * object, guint prop_id, |
---|
1388 | GValue * value, GParamSpec * pspec) |
---|
1389 | { |
---|
1390 | GstGLImageSink *glimagesink; |
---|
1391 | |
---|
1392 | g_return_if_fail (GST_IS_GLIMAGESINK (object)); |
---|
1393 | |
---|
1394 | glimagesink = GST_GLIMAGESINK (object); |
---|
1395 | |
---|
1396 | switch (prop_id) { |
---|
1397 | case ARG_DISPLAY: |
---|
1398 | g_value_set_string (value, g_strdup (glimagesink->display_name)); |
---|
1399 | break; |
---|
1400 | case ARG_SYNCHRONOUS: |
---|
1401 | g_value_set_boolean (value, glimagesink->synchronous); |
---|
1402 | break; |
---|
1403 | case ARG_SIGNAL_HANDOFFS: |
---|
1404 | g_value_set_boolean (value, glimagesink->signal_handoffs); |
---|
1405 | break; |
---|
1406 | default: |
---|
1407 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
---|
1408 | break; |
---|
1409 | } |
---|
1410 | } |
---|
1411 | |
---|
1412 | static void |
---|
1413 | gst_glimagesink_finalize (GObject * object) |
---|
1414 | { |
---|
1415 | GstGLImageSink *glimagesink; |
---|
1416 | |
---|
1417 | glimagesink = GST_GLIMAGESINK (object); |
---|
1418 | |
---|
1419 | if (glimagesink->display_name) { |
---|
1420 | g_free (glimagesink->display_name); |
---|
1421 | glimagesink->display_name = NULL; |
---|
1422 | } |
---|
1423 | |
---|
1424 | g_mutex_free (glimagesink->x_lock); |
---|
1425 | g_mutex_free (glimagesink->pool_lock); |
---|
1426 | |
---|
1427 | G_OBJECT_CLASS (parent_class)->finalize (object); |
---|
1428 | } |
---|
1429 | |
---|
1430 | static void |
---|
1431 | gst_glimagesink_init (GstGLImageSink * glimagesink) |
---|
1432 | { |
---|
1433 | GST_VIDEOSINK_PAD (glimagesink) = |
---|
1434 | gst_pad_new_from_template (gst_static_pad_template_get |
---|
1435 | (&gst_glimagesink_sink_template_factory), "sink"); |
---|
1436 | |
---|
1437 | gst_element_add_pad (GST_ELEMENT (glimagesink), |
---|
1438 | GST_VIDEOSINK_PAD (glimagesink)); |
---|
1439 | |
---|
1440 | gst_pad_set_chain_function (GST_VIDEOSINK_PAD (glimagesink), |
---|
1441 | gst_glimagesink_chain); |
---|
1442 | gst_pad_set_link_function (GST_VIDEOSINK_PAD (glimagesink), |
---|
1443 | gst_glimagesink_sink_link); |
---|
1444 | gst_pad_set_getcaps_function (GST_VIDEOSINK_PAD (glimagesink), |
---|
1445 | gst_glimagesink_getcaps); |
---|
1446 | gst_pad_set_fixate_function (GST_VIDEOSINK_PAD (glimagesink), |
---|
1447 | gst_glimagesink_fixate); |
---|
1448 | gst_pad_set_bufferalloc_function (GST_VIDEOSINK_PAD (glimagesink), |
---|
1449 | gst_glimagesink_buffer_alloc); |
---|
1450 | |
---|
1451 | glimagesink->display_name = NULL; |
---|
1452 | glimagesink->xcontext = NULL; |
---|
1453 | glimagesink->window = NULL; |
---|
1454 | glimagesink->glimage = NULL; |
---|
1455 | glimagesink->cur_image = NULL; |
---|
1456 | |
---|
1457 | glimagesink->framerate = 0; |
---|
1458 | |
---|
1459 | glimagesink->x_lock = g_mutex_new (); |
---|
1460 | |
---|
1461 | glimagesink->pixel_width = glimagesink->pixel_height = 1; |
---|
1462 | |
---|
1463 | glimagesink->image_pool = NULL; |
---|
1464 | glimagesink->pool_lock = g_mutex_new (); |
---|
1465 | |
---|
1466 | glimagesink->synchronous = FALSE; |
---|
1467 | glimagesink->signal_handoffs = FALSE; |
---|
1468 | |
---|
1469 | GST_FLAG_SET (glimagesink, GST_ELEMENT_THREAD_SUGGESTED); |
---|
1470 | GST_FLAG_SET (glimagesink, GST_ELEMENT_EVENT_AWARE); |
---|
1471 | } |
---|
1472 | |
---|
1473 | static void |
---|
1474 | gst_glimagesink_base_init (gpointer g_class) |
---|
1475 | { |
---|
1476 | GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); |
---|
1477 | |
---|
1478 | gst_element_class_set_details (element_class, &gst_glimagesink_details); |
---|
1479 | |
---|
1480 | gst_element_class_add_pad_template (element_class, |
---|
1481 | gst_static_pad_template_get (&gst_glimagesink_sink_template_factory)); |
---|
1482 | } |
---|
1483 | |
---|
1484 | static void |
---|
1485 | gst_glimagesink_class_init (GstGLImageSinkClass * klass) |
---|
1486 | { |
---|
1487 | GObjectClass *gobject_class; |
---|
1488 | GstElementClass *gstelement_class; |
---|
1489 | |
---|
1490 | gobject_class = (GObjectClass *) klass; |
---|
1491 | gstelement_class = (GstElementClass *) klass; |
---|
1492 | |
---|
1493 | parent_class = g_type_class_ref (GST_TYPE_VIDEOSINK); |
---|
1494 | |
---|
1495 | g_object_class_install_property (gobject_class, ARG_DISPLAY, |
---|
1496 | g_param_spec_string ("display", "Display", "X Display name", |
---|
1497 | NULL, G_PARAM_READWRITE)); |
---|
1498 | g_object_class_install_property (gobject_class, ARG_SYNCHRONOUS, |
---|
1499 | g_param_spec_boolean ("synchronous", "Synchronous", "When enabled, runs " |
---|
1500 | "the X display in synchronous mode. (used only for debugging)", FALSE, |
---|
1501 | G_PARAM_READWRITE)); |
---|
1502 | g_object_class_install_property (gobject_class, ARG_SIGNAL_HANDOFFS, |
---|
1503 | g_param_spec_boolean ("signal-handoffs", "Signal handoffs", |
---|
1504 | "Send a signal before unreffing the buffer, forces YUV, no GL output", |
---|
1505 | FALSE, G_PARAM_READWRITE)); |
---|
1506 | #if 0 // needed ? |
---|
1507 | g_object_class_install_property (gobject_class, ARG_SIGNAL_BUFFER_ALLOC, |
---|
1508 | g_param_spec_boolean ("signal-bufferalloc", "Signal buffer allocation", |
---|
1509 | "Asks the application for a buffer allocation", FALSE, |
---|
1510 | G_PARAM_READWRITE)); |
---|
1511 | #endif |
---|
1512 | |
---|
1513 | gst_glimagesink_signals[SIGNAL_HANDOFF] = |
---|
1514 | g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, |
---|
1515 | G_STRUCT_OFFSET (GstGLImageSinkClass, handoff), NULL, NULL, |
---|
1516 | gst_marshal_VOID__POINTER_OBJECT, G_TYPE_NONE, 2, |
---|
1517 | GST_TYPE_BUFFER, GST_TYPE_PAD); |
---|
1518 | gst_glimagesink_signals[SIGNAL_BUFALLOC] = |
---|
1519 | g_signal_new ("bufferalloc", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, |
---|
1520 | G_STRUCT_OFFSET (GstGLImageSinkClass, bufferalloc), NULL, NULL, |
---|
1521 | gst_marshal_VOID__POINTER_OBJECT, G_TYPE_NONE, 2, |
---|
1522 | GST_TYPE_BUFFER, GST_TYPE_PAD); |
---|
1523 | |
---|
1524 | gobject_class->finalize = gst_glimagesink_finalize; |
---|
1525 | gobject_class->set_property = gst_glimagesink_set_property; |
---|
1526 | gobject_class->get_property = gst_glimagesink_get_property; |
---|
1527 | |
---|
1528 | gstelement_class->change_state = gst_glimagesink_change_state; |
---|
1529 | } |
---|
1530 | |
---|
1531 | /* ============================================================= */ |
---|
1532 | /* */ |
---|
1533 | /* Public Methods */ |
---|
1534 | /* */ |
---|
1535 | /* ============================================================= */ |
---|
1536 | |
---|
1537 | /* =========================================== */ |
---|
1538 | /* */ |
---|
1539 | /* Object typing & Creation */ |
---|
1540 | /* */ |
---|
1541 | /* =========================================== */ |
---|
1542 | |
---|
1543 | GType |
---|
1544 | gst_glimagesink_get_type (void) |
---|
1545 | { |
---|
1546 | static GType glimagesink_type = 0; |
---|
1547 | |
---|
1548 | if (!glimagesink_type) { |
---|
1549 | static const GTypeInfo glimagesink_info = { |
---|
1550 | sizeof (GstGLImageSinkClass), |
---|
1551 | gst_glimagesink_base_init, |
---|
1552 | NULL, |
---|
1553 | (GClassInitFunc) gst_glimagesink_class_init, |
---|
1554 | NULL, |
---|
1555 | NULL, |
---|
1556 | sizeof (GstGLImageSink), |
---|
1557 | 0, |
---|
1558 | (GInstanceInitFunc) gst_glimagesink_init, |
---|
1559 | }; |
---|
1560 | static const GInterfaceInfo iface_info = { |
---|
1561 | (GInterfaceInitFunc) gst_glimagesink_interface_init, |
---|
1562 | NULL, |
---|
1563 | NULL, |
---|
1564 | }; |
---|
1565 | static const GInterfaceInfo navigation_info = { |
---|
1566 | (GInterfaceInitFunc) gst_glimagesink_navigation_init, |
---|
1567 | NULL, |
---|
1568 | NULL, |
---|
1569 | }; |
---|
1570 | static const GInterfaceInfo overlay_info = { |
---|
1571 | (GInterfaceInitFunc) gst_glimagesink_xoverlay_init, |
---|
1572 | NULL, |
---|
1573 | NULL, |
---|
1574 | }; |
---|
1575 | |
---|
1576 | glimagesink_type = g_type_register_static (GST_TYPE_VIDEOSINK, |
---|
1577 | "GstGLImageSink", &glimagesink_info, 0); |
---|
1578 | |
---|
1579 | g_type_add_interface_static (glimagesink_type, |
---|
1580 | GST_TYPE_IMPLEMENTS_INTERFACE, &iface_info); |
---|
1581 | g_type_add_interface_static (glimagesink_type, GST_TYPE_NAVIGATION, |
---|
1582 | &navigation_info); |
---|
1583 | g_type_add_interface_static (glimagesink_type, GST_TYPE_X_OVERLAY, |
---|
1584 | &overlay_info); |
---|
1585 | } |
---|
1586 | |
---|
1587 | return glimagesink_type; |
---|
1588 | } |
---|
1589 | |
---|
1590 | static gboolean |
---|
1591 | plugin_init (GstPlugin * plugin) |
---|
1592 | { |
---|
1593 | /* Loading the library containing GstVideoSink, our parent object */ |
---|
1594 | if (!gst_library_load ("gstvideo")) |
---|
1595 | return FALSE; |
---|
1596 | |
---|
1597 | if (!gst_element_register (plugin, "glimagesink", |
---|
1598 | GST_RANK_SECONDARY, GST_TYPE_GLIMAGESINK)) |
---|
1599 | return FALSE; |
---|
1600 | |
---|
1601 | GST_DEBUG_CATEGORY_INIT (gst_debug_glimagesink, "glimagesink", 0, |
---|
1602 | "glimagesink element"); |
---|
1603 | |
---|
1604 | return TRUE; |
---|
1605 | } |
---|
1606 | |
---|
1607 | GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, |
---|
1608 | GST_VERSION_MINOR, |
---|
1609 | "glimagesink", |
---|
1610 | "OpenGL video output plugin based on OpenGL 1.2 calls", |
---|
1611 | plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN) |
---|