2 * filter_lift_gamma_gain.cpp
3 * Copyright (C) 2013 Dan Dennedy <dan@dennedy.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #include <framework/mlt.h>
24 #include "filter_glsl_manager.h"
25 #include <movit/lift_gamma_gain_effect.h>
27 static int get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
29 mlt_filter filter = (mlt_filter) mlt_frame_pop_service( frame );
30 mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
31 GlslManager::get_instance()->lock_service( frame );
32 Effect* effect = GlslManager::get_effect( filter, frame );
34 mlt_position position = mlt_filter_get_position( filter, frame );
35 mlt_position length = mlt_filter_get_length2( filter, frame );
37 mlt_properties_anim_get_double( properties, "lift_r", position, length ),
38 mlt_properties_anim_get_double( properties, "lift_g", position, length ),
39 mlt_properties_anim_get_double( properties, "lift_b", position, length )
41 bool ok = effect->set_vec3( "lift", (float*) &triplet );
42 triplet.r = mlt_properties_anim_get_double( properties, "gamma_r", position, length );
43 triplet.g = mlt_properties_anim_get_double( properties, "gamma_g", position, length );
44 triplet.b = mlt_properties_anim_get_double( properties, "gamma_b", position, length );
45 ok |= effect->set_vec3( "gamma", (float*) &triplet );
46 triplet.r = mlt_properties_anim_get_double( properties, "gain_r", position, length );
47 triplet.g = mlt_properties_anim_get_double( properties, "gain_g", position, length );
48 triplet.b = mlt_properties_anim_get_double( properties, "gain_b", position, length );
49 ok |= effect->set_vec3( "gain", (float*) &triplet );
52 GlslManager::get_instance()->unlock_service( frame );
53 *format = mlt_image_glsl;
54 return mlt_frame_get_image( frame, image, format, width, height, writable );
57 static mlt_frame process( mlt_filter filter, mlt_frame frame )
59 if ( !mlt_frame_is_test_card( frame ) ) {
60 if ( !GlslManager::get_effect( filter, frame ) )
61 GlslManager::add_effect( filter, frame, new LiftGammaGainEffect );
63 mlt_frame_push_service( frame, filter );
64 mlt_frame_push_get_image( frame, get_image );
70 mlt_filter filter_lift_gamma_gain_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
72 mlt_filter filter = NULL;
73 GlslManager* glsl = GlslManager::get_instance();
75 if ( glsl && ( filter = mlt_filter_new() ) ) {
76 mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
77 mlt_properties_set_double( properties, "lift_r", 0.0 );
78 mlt_properties_set_double( properties, "lift_g", 0.0 );
79 mlt_properties_set_double( properties, "lift_b", 0.0 );
80 mlt_properties_set_double( properties, "gamma_r", 1.0 );
81 mlt_properties_set_double( properties, "gamma_g", 1.0 );
82 mlt_properties_set_double( properties, "gamma_b", 1.0 );
83 mlt_properties_set_double( properties, "gain_r", 1.0 );
84 mlt_properties_set_double( properties, "gain_g", 1.0 );
85 mlt_properties_set_double( properties, "gain_b", 1.0 );
86 filter->process = process;