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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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d02a585e7b
The background image needs to be scaled to fit current texture size. Previously this was done by gdk_pixbuf_scale_simple but that's been removed. Create a texture from the background pixbuf with correct dimensions and use interpolation shader to scale it to the right size. Interpolation fragment shader doesn't have too much sense if all the textures don't have the same size so this seemed the most natural place to do the scaling. It could probably be done with some custom texture mapping outside the shader but it involved more code. Fixes bug #599883.
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/*
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* GStreamer
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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_DIFFERENCEMATTE_H_
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#define _GST_GL_DIFFERENCEMATTE_H_
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#include <gstglfilter.h>
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#define GST_TYPE_GL_DIFFERENCEMATTE (gst_gl_differencematte_get_type())
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#define GST_GL_DIFFERENCEMATTE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GL_DIFFERENCEMATTE,GstGLDifferenceMatte))
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#define GST_IS_GL_DIFFERENCEMATTE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GL_DIFFERENCEMATTE))
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#define GST_GL_DIFFERENCEMATTE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_GL_DIFFERENCEMATTE,GstGLDifferenceMatteClass))
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#define GST_IS_GL_DIFFERENCEMATTE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_GL_DIFFERENCEMATTE))
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#define GST_GL_DIFFERENCEMATTE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_GL_DIFFERENCEMATTE,GstGLDifferenceMatteClass))
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typedef struct _GstGLDifferenceMatte GstGLDifferenceMatte;
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typedef struct _GstGLDifferenceMatteClass GstGLDifferenceMatteClass;
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struct _GstGLDifferenceMatte
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{
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GstGLFilter filter;
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GstGLShader *shader[4];
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gchar *location;
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gboolean bg_has_changed;
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guchar *pixbuf;
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gint pbuf_width, pbuf_height;
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GLuint savedbgtexture;
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GLuint newbgtexture;
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GLuint midtexture[4];
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GLuint intexture;
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};
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struct _GstGLDifferenceMatteClass
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{
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GstGLFilterClass filter_class;
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};
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#endif /* _GST_GL_DIFFERENCEMATTE_H_ */
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