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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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e002f92e6d
For now only identity, mirror and squeeze effects are available. Maybe some factorization is needed about compilation shader before to put the other effects since only a copy/past is needed, at least until effect number 9: heat. The effects from 10:sepia to 15:glow require more work.
116 lines
3.4 KiB
C
116 lines
3.4 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_EFFECTS_H__
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#define __GST_GL_EFFECTS_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gstglfilter.h>
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#include <gstgleffectssources.h>
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G_BEGIN_DECLS
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#define GST_TYPE_GL_EFFECTS (gst_gl_effects_get_type())
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#define GST_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_GL_EFFECTS,GstGLEffects))
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#define GST_IS_GL_EFFECTS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_GL_EFFECTS))
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#define GST_GL_EFFECTS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_GL_EFFECTS,GstGLEffectsClass))
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#define GST_IS_GL_EFFECTS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_GL_EFFECTS))
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#define GST_GL_EFFECTS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_GL_EFFECTS,GstGLEffectsClass))
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typedef struct _GstGLEffects GstGLEffects;
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typedef struct _GstGLEffectsClass GstGLEffectsClass;
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typedef void (* GstGLEffectProcessFunc) (GstGLEffects *effects);
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#define NEEDED_TEXTURES 4
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enum {
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GST_GL_EFFECTS_CURVE_HEAT,
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GST_GL_EFFECTS_CURVE_SEPIA,
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GST_GL_EFFECTS_CURVE_XPRO,
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GST_GL_EFFECTS_CURVE_LUMA_XPRO,
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GST_GL_EFFECTS_CURVE_XRAY,
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GST_GL_EFFECTS_N_CURVES
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};
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struct _GstGLEffects
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{
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GstGLFilter filter;
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GstGLEffectProcessFunc effect;
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gint current_effect;
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GLuint intexture;
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GLuint midtexture[NEEDED_TEXTURES];
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GLuint outtexture;
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GLuint curve[GST_GL_EFFECTS_N_CURVES];
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GHashTable *shaderstable;
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gboolean horizontal_swap; /* switch left to right */
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#ifdef OPENGL_ES2
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GLint draw_attr_position_loc;
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GLint draw_attr_texture_loc;
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#endif
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};
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struct _GstGLEffectsClass
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{
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GstGLFilterClass filter_class;
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};
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enum
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{
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PROP_0,
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PROP_EFFECT,
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PROP_HSWAP
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};
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GType gst_gl_effects_get_type (void);
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void gst_gl_effects_draw_texture (GstGLEffects * effects, GLuint tex);
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void gst_gl_effects_identity (GstGLEffects *effects);
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void gst_gl_effects_mirror (GstGLEffects *effects);
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void gst_gl_effects_squeeze (GstGLEffects *effects);
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void gst_gl_effects_stretch (GstGLEffects *effects);
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void gst_gl_effects_tunnel (GstGLEffects *effects);
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void gst_gl_effects_fisheye (GstGLEffects *effects);
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void gst_gl_effects_twirl (GstGLEffects *effects);
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void gst_gl_effects_bulge (GstGLEffects *effects);
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void gst_gl_effects_square (GstGLEffects *effects);
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void gst_gl_effects_heat (GstGLEffects *effects);
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void gst_gl_effects_sepia (GstGLEffects *effects);
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void gst_gl_effects_xpro (GstGLEffects *effects);
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void gst_gl_effects_xray (GstGLEffects *effects);
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void gst_gl_effects_luma_xpro (GstGLEffects *effects);
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void gst_gl_effects_sin (GstGLEffects *effects);
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void gst_gl_effects_glow (GstGLEffects *effects);
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G_END_DECLS
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#endif /*__GST_GL_EFFECTS_H__ */
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