sys/glsink/: Switch to using framebuffer_objects instead of GLXPixmaps, because that's what my driver supports. Remo...

Original commit message from CVS:
* sys/glsink/Makefile.am:
* sys/glsink/glextensions.c:
* sys/glsink/glextensions.h:
* sys/glsink/glimagesink.c:
* sys/glsink/glimagesink.h:
* sys/glsink/glvideo.c:
* sys/glsink/glvideo.h:
* sys/glsink/gstglbuffer.c:
* sys/glsink/gstglbuffer.h:
* sys/glsink/gstgldownload.c:
* sys/glsink/gstglfilter.c:
* sys/glsink/gstglupload.c:
* sys/glsink/gstopengl.c:
Switch to using framebuffer_objects instead of GLXPixmaps,
because that's what my driver supports.  Remove GLDrawable,
since GstGLDisplay now has a default drawable and context.

1 files changed, 416 insertions, 0 deletions

diff --git a/sys/glsink/gstglfilter.c b/sys/glsink/gstglfilter.c
new file mode 100644
index 00000000..c2b91f45
--- /dev/null
+++ b/sys/glsink/gstglfilter.c
@@ -0,0 +1,416 @@
+/* 
+ * GStreamer
+ * Copyright (C) 2007 David Schleef <ds@schleef.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gstglbuffer.h>
+
+#define GST_CAT_DEFAULT gst_gl_filter_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+#define GST_TYPE_GL_FILTER            (gst_gl_filter_get_type())
+#define GST_GL_FILTER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_FILTER,GstGLFilter))
+#define GST_IS_GL_FILTER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_FILTER))
+#define GST_GL_FILTER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_FILTER,GstGLFilterClass))
+#define GST_IS_GL_FILTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_FILTER))
+#define GST_GL_FILTER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_FILTER,GstGLFilterClass))
+typedef struct _GstGLFilter GstGLFilter;
+typedef struct _GstGLFilterClass GstGLFilterClass;
+
+typedef void (*GstGLFilterProcessFunc) (GstGLFilter *, guint8 *, guint);
+
+struct _GstGLFilter
+{
+  GstElement element;
+
+  GstPad *srcpad;
+  GstPad *sinkpad;
+
+  /* < private > */
+
+  GstGLDisplay *display;
+  GstVideoFormat format;
+  int width;
+  int height;
+};
+
+struct _GstGLFilterClass
+{
+  GstElementClass element_class;
+};
+
+static const GstElementDetails element_details = GST_ELEMENT_DETAILS ("FIXME",
+    "Filter/Effect",
+    "FIXME example filter",
+    "FIXME <fixme@fixme.com>");
+
+#define GST_GL_VIDEO_CAPS "video/x-raw-gl"
+
+static GstStaticPadTemplate gst_gl_filter_src_pad_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
+    );
+
+static GstStaticPadTemplate gst_gl_filter_sink_pad_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
+    );
+
+enum
+{
+  PROP_0
+};
+
+#define DEBUG_INIT(bla) \
+  GST_DEBUG_CATEGORY_INIT (gst_gl_filter_debug, "glfilter", 0, "glfilter element");
+
+GST_BOILERPLATE_FULL (GstGLFilter, gst_gl_filter, GstElement,
+    GST_TYPE_ELEMENT, DEBUG_INIT);
+
+static void gst_gl_filter_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_gl_filter_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+
+static GstFlowReturn gst_gl_filter_chain (GstPad * pad, GstBuffer * buf);
+static void gst_gl_filter_reset (GstGLFilter * filter);
+static GstStateChangeReturn
+gst_gl_filter_change_state (GstElement * element, GstStateChange transition);
+static gboolean gst_gl_filter_sink_setcaps (GstPad * pad, GstCaps * caps);
+static gboolean gst_gl_filter_transform (GstGLBuffer * outbuf,
+    GstGLBuffer * inbuf);
+
+
+static void
+gst_gl_filter_base_init (gpointer klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+  gst_element_class_set_details (element_class, &element_details);
+
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_gl_filter_src_pad_template));
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_gl_filter_sink_pad_template));
+}
+
+static void
+gst_gl_filter_class_init (GstGLFilterClass * klass)
+{
+  GObjectClass *gobject_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gobject_class->set_property = gst_gl_filter_set_property;
+  gobject_class->get_property = gst_gl_filter_get_property;
+
+  GST_ELEMENT_CLASS (klass)->change_state = gst_gl_filter_change_state;
+}
+
+static void
+gst_gl_filter_init (GstGLFilter * filter, GstGLFilterClass * klass)
+{
+  gst_element_create_all_pads (GST_ELEMENT (filter));
+
+  filter->sinkpad = gst_element_get_static_pad (GST_ELEMENT (filter), "sink");
+  filter->srcpad = gst_element_get_static_pad (GST_ELEMENT (filter), "src");
+
+  gst_pad_set_setcaps_function (filter->sinkpad, gst_gl_filter_sink_setcaps);
+  gst_pad_set_chain_function (filter->sinkpad, gst_gl_filter_chain);
+
+  gst_gl_filter_reset (filter);
+}
+
+static void
+gst_gl_filter_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  //GstGLFilter *filter = GST_GL_FILTER (object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_gl_filter_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  //GstGLFilter *filter = GST_GL_FILTER (object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_gl_filter_reset (GstGLFilter * filter)
+{
+  if (filter->display) {
+    g_object_unref (filter->display);
+    filter->display = NULL;
+  }
+  filter->format = GST_VIDEO_FORMAT_BGRx;
+}
+
+static gboolean
+gst_gl_filter_start (GstGLFilter * filter)
+{
+  gboolean ret;
+
+  filter->format = GST_VIDEO_FORMAT_BGRx;
+  filter->display = gst_gl_display_new ();
+  ret = gst_gl_display_connect (filter->display, NULL);
+
+  return ret;
+}
+
+static gboolean
+gst_gl_filter_stop (GstGLFilter * filter)
+{
+  gst_gl_filter_reset (filter);
+
+  return TRUE;
+}
+
+static gboolean
+gst_gl_filter_sink_setcaps (GstPad * pad, GstCaps * caps)
+{
+  GstGLFilter *filter;
+  gboolean ret;
+  GstStructure *structure;
+
+  filter = GST_GL_FILTER (gst_pad_get_parent (pad));
+
+  structure = gst_caps_get_structure (caps, 0);
+
+  ret = gst_structure_get_int (structure, "width", &filter->width);
+  ret &= gst_structure_get_int (structure, "height", &filter->height);
+  if (!ret)
+    return FALSE;
+
+  GST_ERROR ("setcaps %d %d", filter->width, filter->height);
+
+  ret = gst_pad_set_caps (filter->srcpad, caps);
+
+  return ret;
+}
+
+static GstFlowReturn
+gst_gl_filter_chain (GstPad * pad, GstBuffer * buf)
+{
+  GstGLFilter *filter;
+  GstGLBuffer *inbuf;
+  GstGLBuffer *outbuf;
+
+  filter = GST_GL_FILTER (gst_pad_get_parent (pad));
+  inbuf = GST_GL_BUFFER (buf);
+
+  outbuf = gst_gl_buffer_new (inbuf->display, filter->format,
+      filter->width, filter->height);
+
+  gst_buffer_copy_metadata (GST_BUFFER (outbuf), buf,
+      GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
+  gst_buffer_set_caps (GST_BUFFER (outbuf), GST_PAD_CAPS (filter->srcpad));
+
+  gst_gl_filter_transform (outbuf, inbuf);
+
+  gst_pad_push (filter->srcpad, GST_BUFFER (outbuf));
+
+  gst_object_unref (filter);
+  return GST_FLOW_OK;
+}
+
+static GstStateChangeReturn
+gst_gl_filter_change_state (GstElement * element, GstStateChange transition)
+{
+  GstGLFilter *filter;
+  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
+
+  GST_DEBUG ("change state");
+
+  filter = GST_GL_FILTER (element);
+
+  switch (transition) {
+    case GST_STATE_CHANGE_NULL_TO_READY:
+      break;
+    case GST_STATE_CHANGE_READY_TO_PAUSED:
+      gst_gl_filter_start (filter);
+      break;
+    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+      break;
+    default:
+      break;
+  }
+
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+  if (ret == GST_STATE_CHANGE_FAILURE)
+    return ret;
+
+  switch (transition) {
+    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+      break;
+    case GST_STATE_CHANGE_PAUSED_TO_READY:
+      gst_gl_filter_stop (filter);
+      break;
+    case GST_STATE_CHANGE_READY_TO_NULL:
+      break;
+    default:
+      break;
+  }
+
+  return ret;
+}
+
+void
+dump_fbconfigs (Display * display)
+{
+  GLXFBConfig *fbconfigs;
+  int n;
+  int i;
+  int j;
+  int ret;
+  int value;
+  struct
+  {
+    int attr;
+    char *name;
+  } list[] = {
+    {
+    GLX_DRAWABLE_TYPE, "drawable type"}, {
+    GLX_BIND_TO_TEXTURE_TARGETS_EXT, "bind to texture targets"}, {
+    GLX_BIND_TO_TEXTURE_RGBA_EXT, "bind to texture rgba"}, {
+    GLX_MAX_PBUFFER_WIDTH, "max pbuffer width"}, {
+    GLX_MAX_PBUFFER_HEIGHT, "max pbuffer height"}, {
+    GLX_MAX_PBUFFER_PIXELS, "max pbuffer pixels"}, {
+    GLX_RENDER_TYPE, "render type"}, {
+    0, 0}
+  };
+
+  g_print ("screen count: %d\n", ScreenCount (display));
+
+  fbconfigs = glXGetFBConfigs (display, 0, &n);
+  for (i = 0; i < n; i++) {
+    g_print ("%d:\n", i);
+    for (j = 0; list[j].attr; j++) {
+      ret = glXGetFBConfigAttrib (display, fbconfigs[i], list[j].attr, &value);
+      if (ret != Success) {
+        g_print ("%s: failed\n", list[j].name);
+      } else {
+        g_print ("%s: %d\n", list[j].name, value);
+      }
+    }
+  }
+
+}
+
+static gboolean
+gst_gl_filter_transform (GstGLBuffer * outbuf, GstGLBuffer * inbuf)
+{
+  GstGLDisplay *display;
+
+#if 0
+  int pixmapAttribs[] = {
+    GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_RECTANGLE_EXT,
+    GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
+    None
+  };
+#endif
+  GLXFBConfig *fbconfigs;
+  int n;
+  int i;
+  GLXDrawable glxpixmap;
+  GLXContext context = 0;
+  int fb_index = 0;
+  int attrib[] = { GLX_RGBA, GLX_RED_SIZE, 8,
+    GLX_GREEN_SIZE, 8, GLX_BLUE_SIZE, 8, None
+  };
+  XVisualInfo *visinfo;
+
+  display = outbuf->display;
+  gst_gl_display_lock (display);
+
+  //context = glXCreateContext (display->display, visinfo, NULL, True);
+
+  dump_fbconfigs (display->display);
+
+  fbconfigs = glXGetFBConfigs (display->display, display->screen_num, &n);
+  for (i = 0; i < n; i++) {
+    XVisualInfo *visinfo;
+    int value;
+
+    GST_DEBUG ("fbconfig %d", i);
+
+    visinfo = glXGetVisualFromFBConfig (display->display, fbconfigs[i]);
+    GST_DEBUG ("visinfo %p", visinfo);
+
+    glXGetFBConfigAttrib (display->display, fbconfigs[i],
+        GLX_DRAWABLE_TYPE, &value);
+    if (!(value & GLX_WINDOW_BIT)) {
+      GST_DEBUG ("GLX_DRAWABLE_TYPE doesn't have GLX_WINDOW_BIT set");
+      continue;
+    }
+
+    glXGetFBConfigAttrib (display->display, fbconfigs[i],
+        GLX_BIND_TO_TEXTURE_TARGETS_EXT, &value);
+    if (!(value & GLX_TEXTURE_2D_BIT_EXT)) {
+      GST_DEBUG
+          ("GLX_BIND_TO_TEXTURE_TARGETS_EXT doesn't have GLX_TEXTURE_2D_BIT_EXT set");
+      continue;
+    }
+
+    glXGetFBConfigAttrib (display->display, fbconfigs[i],
+        GLX_BIND_TO_TEXTURE_RGBA_EXT, &value);
+    GST_DEBUG ("GLX_BIND_TO_TEXTURE_RGBA_EXT %d", value);
+
+  }
+
+  fb_index = 0;
+
+#if 0
+  {
+    pb = glXCreatePbuffer (display->display, fbconfigs[fb_index], attribs);
+  }
+#endif
+
+  XSync (display->display, False);
+  visinfo = glXChooseVisual (display->display, 0, attrib);
+  glxpixmap = glXCreateGLXPixmap (display->display, visinfo, outbuf->pixmap);
+
+  XSync (display->display, False);
+
+  glXMakeCurrent (display->display, glxpixmap, context);
+
+  glXMakeCurrent (display->display, None, NULL);
+  gst_gl_display_unlock (display);
+
+  return TRUE;
+}