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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8c33ba0ba6
Before, a gstgldisplay was instancied by the gl src in terms of gl chain. And then the next element got it through the first gstglbuffer. Now, this is done though queries. All glelements get their ref on a gstgldisplay in READY state. This rewrite is mainly a first step to be able to share OpenGL context hold by the gstgldisplay using more complex glelements. For example, with a glvideomixer. The associated gstgldisplay of each gl chain of the sink pads will share their OpenGL context.
96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/*
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* GStreamer
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* Copyright (C) 2007 David Schleef <ds@schleef.org>
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _GST_GL_FILTER_H_
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#define _GST_GL_FILTER_H_
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/video.h>
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#include "gstglbuffer.h"
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G_BEGIN_DECLS
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#define GST_TYPE_GL_FILTER (gst_gl_filter_get_type())
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#define GST_GL_FILTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_FILTER,GstGLFilter))
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#define GST_IS_GL_FILTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_FILTER))
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#define GST_GL_FILTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_FILTER,GstGLFilterClass))
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#define GST_IS_GL_FILTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_FILTER))
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#define GST_GL_FILTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_FILTER,GstGLFilterClass))
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typedef struct _GstGLFilter GstGLFilter;
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typedef struct _GstGLFilterClass GstGLFilterClass;
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typedef gboolean (*GstGLFilterSetCaps) (GstGLFilter* filter,
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GstCaps* incaps, GstCaps* outcaps);
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typedef gboolean (*GstGLFilterProcessFunc) (GstGLFilter *filter,
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GstGLBuffer *inbuf, GstGLBuffer *outbuf);
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typedef void (*GstGLFilterOnInitFBO) (GstGLFilter *filter);
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typedef void (*GstGLFilterOnReset) (GstGLFilter *filter);
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typedef void (*GstGLFilterOnStart) (GstGLFilter *filter);
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typedef void (*GstGLFilterOnStop) (GstGLFilter *filter);
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typedef void (*GstGLFilterGLStartFunc) (GstGLFilter *filter);
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typedef void (*GstGLFilterGLStopFunc) (GstGLFilter *filter);
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struct _GstGLFilter
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{
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GstBaseTransform base_transform;
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GstGLDisplay *display;
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gint width;
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gint height;
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GLuint fbo;
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GLuint depthbuffer;
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};
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struct _GstGLFilterClass
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{
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GstBaseTransformClass base_transform_class;
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GstGLFilterSetCaps set_caps;
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GstGLFilterProcessFunc filter;
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GstGLFilterOnInitFBO onInitFBO;
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GstGLFilterOnStart onStart;
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GstGLFilterOnStop onStop;
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GstGLFilterOnReset onReset;
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/* useful to init and cleanup custom gl resources */
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GstGLFilterGLStartFunc display_init_cb; /* run arbitrary gl code at start */
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GstGLFilterGLStopFunc display_reset_cb; /* run arbitrary gl code at stop */
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};
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GType gst_gl_filter_get_type(void);
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void
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gst_gl_filter_render_to_target (GstGLFilter *filter,
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GLuint input, GLuint target,
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GLCB func, gpointer data);
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G_END_DECLS
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#endif
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