--- /dev/null
+/*
+ * 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>
+#include <gstglfilter.h>
+#include "glextensions.h"
+
+#define GST_CAT_DEFAULT gst_gl_filter_debug
+GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
+
+
+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)
+ );
+
+#define DEBUG_INIT(bla) \
+ GST_DEBUG_CATEGORY_INIT (gst_gl_filter_debug, "glfilter", 0, "glfilter element");
+
+GST_BOILERPLATE_FULL (GstGLFilter, gst_gl_filter, GstBaseTransform,
+ GST_TYPE_BASE_TRANSFORM, 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 void gst_gl_filter_reset (GstGLFilter * filter);
+static gboolean gst_gl_filter_start (GstBaseTransform * bt);
+static gboolean gst_gl_filter_stop (GstBaseTransform * bt);
+static gboolean gst_gl_filter_get_unit_size (GstBaseTransform * trans,
+ GstCaps * caps, guint * size);
+static GstFlowReturn gst_gl_filter_transform (GstBaseTransform * bt,
+ GstBuffer * inbuf, GstBuffer * outbuf);
+static GstFlowReturn gst_gl_filter_prepare_output_buffer (GstBaseTransform *
+ trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
+static gboolean gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
+ GstCaps * outcaps);
+static gboolean gst_gl_filter_do_transform (GstGLFilter * filter,
+ GstGLBuffer * inbuf, GstGLBuffer * outbuf);
+
+
+static void
+gst_gl_filter_base_init (gpointer klass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ 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_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_filter_transform;
+ GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_filter_start;
+ GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_filter_stop;
+ GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_filter_set_caps;
+ GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_filter_get_unit_size;
+ GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
+ gst_gl_filter_prepare_output_buffer;
+}
+
+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_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_GL_BUFFER_FORMAT_UNKNOWN;
+ filter->width = 0;
+ filter->height = 0;
+}
+
+static gboolean
+gst_gl_filter_start (GstBaseTransform * bt)
+{
+
+ return TRUE;
+}
+
+static gboolean
+gst_gl_filter_stop (GstBaseTransform * bt)
+{
+ GstGLFilter *filter = GST_GL_FILTER (bt);
+
+ gst_gl_filter_reset (filter);
+
+ return TRUE;
+}
+
+static gboolean
+gst_gl_filter_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
+ guint * size)
+{
+ gboolean ret;
+ GstGLBufferFormat format;
+ int width;
+ int height;
+
+ ret = gst_gl_buffer_format_parse_caps (caps, &format, &width, &height);
+ if (ret) {
+ *size = gst_gl_buffer_format_get_size (format, width, height);
+ }
+
+ return TRUE;
+}
+
+static GstFlowReturn
+gst_gl_filter_prepare_output_buffer (GstBaseTransform * trans,
+ GstBuffer * inbuf, gint size, GstCaps * caps, GstBuffer ** buf)
+{
+ GstGLFilter *filter;
+ GstGLBuffer *gl_inbuf = GST_GL_BUFFER (inbuf);
+ GstGLBuffer *gl_outbuf;
+
+ filter = GST_GL_FILTER (trans);
+
+ if (filter->display == NULL) {
+ filter->display = gl_inbuf->display;
+ }
+
+ gl_outbuf = gst_gl_buffer_new_with_format (filter->display,
+ filter->format, filter->width, filter->height);
+
+ *buf = GST_BUFFER (gl_outbuf);
+ gst_buffer_set_caps (*buf, caps);
+
+ return GST_FLOW_OK;
+}
+
+static gboolean
+gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
+ GstCaps * outcaps)
+{
+ GstGLFilter *filter;
+ gboolean ret;
+
+ filter = GST_GL_FILTER (bt);
+
+ ret = gst_gl_buffer_format_parse_caps (incaps, &filter->format,
+ &filter->width, &filter->height);
+
+ if (!ret) {
+ GST_DEBUG ("bad caps");
+ return FALSE;
+ }
+
+ GST_ERROR ("set_caps %d %d", filter->width, filter->height);
+
+ return ret;
+}
+
+static GstFlowReturn
+gst_gl_filter_transform (GstBaseTransform * bt, GstBuffer * inbuf,
+ GstBuffer * outbuf)
+{
+ GstGLFilter *filter;
+ GstGLBuffer *gl_inbuf = GST_GL_BUFFER (inbuf);
+ GstGLBuffer *gl_outbuf = GST_GL_BUFFER (outbuf);
+
+ filter = GST_GL_FILTER (bt);
+
+ gst_gl_filter_do_transform (filter, gl_inbuf, gl_outbuf);
+
+ return GST_FLOW_OK;
+}
+
+static gboolean
+gst_gl_filter_do_transform (GstGLFilter * filter,
+ GstGLBuffer * inbuf, GstGLBuffer * outbuf)
+{
+ GstGLDisplay *display = inbuf->display;
+ GstGLFilterClass *filter_class;
+ unsigned int fbo;
+
+ filter_class = GST_GL_FILTER_GET_CLASS (filter);
+
+ gst_gl_display_lock (display);
+
+ glGenFramebuffersEXT (1, &fbo);
+ glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
+
+ glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, outbuf->texture, 0);
+
+ glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT);
+ glReadBuffer (GL_COLOR_ATTACHMENT0_EXT);
+
+ g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
+ GL_FRAMEBUFFER_COMPLETE_EXT);
+
+ glViewport (0, 0, outbuf->width, outbuf->height);
+
+ glClearColor (0.3, 0.3, 0.3, 1.0);
+ glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ glMatrixMode (GL_MODELVIEW);
+ glLoadIdentity ();
+
+ glDisable (GL_CULL_FACE);
+ glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+
+ glColor4f (1, 1, 1, 1);
+
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glActiveTexture (GL_TEXTURE0);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, inbuf->texture);
+
+ filter_class->filter (filter, inbuf, outbuf);
+
+#if 0
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ glColor4f (1, 0, 1, 1);
+ glBegin (GL_QUADS);
+
+ glNormal3f (0, 0, -1);
+
+ glTexCoord2f (inbuf->width, 0);
+ glVertex3f (0.9, -0.9, 0);
+ glTexCoord2f (0, 0);
+ glVertex3f (-1.0, -1.0, 0);
+ glTexCoord2f (0, inbuf->height);
+ glVertex3f (-1.0, 1.0, 0);
+ glTexCoord2f (inbuf->width, inbuf->height);
+ glVertex3f (1.0, 1.0, 0);
+ glEnd ();
+#endif
+
+ glFlush ();
+
+ glDeleteFramebuffersEXT (1, &fbo);
+
+ gst_gl_display_unlock (display);
+
+ return TRUE;
+}
--- /dev/null
+/*
+ * 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.
+ */
+
+#ifndef _GST_GL_FILTER_H_
+#define _GST_GL_FILTER_H_
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/base/gstbasetransform.h>
+#include <gstglbuffer.h>
+
+#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 gboolean (*GstGLFilterProcessFunc) (GstGLFilter *filter,
+ GstGLBuffer *inbuf, GstGLBuffer *outbuf);
+
+struct _GstGLFilter
+{
+ GstBaseTransform base_transform;
+
+ GstPad *srcpad;
+ GstPad *sinkpad;
+
+ /* < private > */
+
+ GstGLDisplay *display;
+ GstGLBufferFormat format;
+ int width;
+ int height;
+};
+
+struct _GstGLFilterClass
+{
+ GstBaseTransformClass base_transform_class;
+ GstGLFilterProcessFunc filter;
+};
+
+GType gst_gl_filter_get_type(void);
+
+#endif
+
projects / platform / upstream / gst-plugins-base.git / commitdiff