2 * filter_glsl_manager.cpp
3 * Copyright (C) 2011-2012 Christophe Thommeret <hftom@free.fr>
4 * Copyright (C) 2013 Dan Dennedy <dan@dennedy.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #include "glsl_manager.h"
24 #include <movit/init.h>
25 #include <movit/effect_chain.h>
26 #include "mlt_movit_input.h"
27 #include "mlt_flip_effect.h"
28 #include <mlt++/MltEvent.h>
29 #include <mlt++/MltProducer.h>
32 #include <framework/mlt_factory.h>
35 void deleteManager(GlslManager *p)
40 GlslManager::GlslManager()
41 : Mlt::Filter( mlt_filter_new() )
44 mlt_filter filter = get_filter();
46 // Set the mlt_filter child in case we choose to override virtual functions.
48 mlt_properties_set_data(mlt_global_properties(), "glslManager", this, 0,
49 (mlt_destructor) deleteManager, NULL);
51 mlt_events_register( get_properties(), "init glsl", NULL );
52 listen("init glsl", this, (mlt_listener) GlslManager::onInit);
56 GlslManager::~GlslManager()
58 mlt_log_debug(get_service(), "%s\n", __FUNCTION__);
59 while (fbo_list.peek_back())
60 delete (glsl_fbo) fbo_list.pop_back();
61 while (texture_list.peek_back())
62 delete (glsl_texture) texture_list.pop_back();
66 GlslManager* GlslManager::get_instance()
68 return (GlslManager*) mlt_properties_get_data(mlt_global_properties(), "glslManager", 0);
71 glsl_fbo GlslManager::get_fbo(int width, int height)
73 for (int i = 0; i < fbo_list.count(); ++i) {
74 glsl_fbo fbo = (glsl_fbo) fbo_list.peek(i);
75 if (!fbo->used && (fbo->width == width) && (fbo->height == height)) {
81 glGenFramebuffers(1, &fb);
85 glsl_fbo fbo = new glsl_fbo_s;
87 glDeleteFramebuffers(1, &fb);
94 fbo_list.push_back(fbo);
98 void GlslManager::release_fbo(glsl_fbo fbo)
103 glsl_texture GlslManager::get_texture(int width, int height, GLint internal_format)
105 for (int i = 0; i < texture_list.count(); ++i) {
106 glsl_texture tex = (glsl_texture) texture_list.peek(i);
107 if (!tex->used && (tex->width == width) && (tex->height == height) && (tex->internal_format == internal_format)) {
108 glBindTexture(GL_TEXTURE_2D, tex->texture);
109 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
110 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
111 glBindTexture( GL_TEXTURE_2D, 0);
117 glGenTextures(1, &tex);
121 glsl_texture gtex = new glsl_texture_s;
123 glDeleteTextures(1, &tex);
126 glBindTexture( GL_TEXTURE_2D, tex );
127 glTexImage2D( GL_TEXTURE_2D, 0, internal_format, width, height, 0, internal_format, GL_UNSIGNED_BYTE, NULL );
128 glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
129 glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
130 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
131 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
132 glBindTexture( GL_TEXTURE_2D, 0 );
136 gtex->height = height;
137 gtex->internal_format = internal_format;
139 texture_list.push_back(gtex);
143 void GlslManager::release_texture(glsl_texture texture)
148 glsl_pbo GlslManager::get_pbo(int size)
152 glGenBuffers(1, &pb);
156 pbo = new glsl_pbo_s;
158 glDeleteBuffers(1, &pb);
163 if (size > pbo->size) {
164 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo->pbo);
165 glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, size, NULL, GL_STREAM_DRAW);
166 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
172 void GlslManager::onInit( mlt_properties owner, GlslManager* filter )
174 mlt_log_debug( filter->get_service(), "%s\n", __FUNCTION__ );
176 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("\\share\\movit");
177 #elif defined(__DARWIN__) && defined(RELOCATABLE)
178 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("/share/movit");
180 std::string path = std::string(getenv("MLT_MOVIT_PATH") ? getenv("MLT_MOVIT_PATH") : SHADERDIR);
182 ::init_movit( path, mlt_log_get_level() == MLT_LOG_DEBUG? MOVIT_DEBUG_ON : MOVIT_DEBUG_OFF );
183 filter->set( "glsl_supported", movit_initialized );
186 void GlslManager::onServiceChanged( mlt_properties owner, mlt_service aservice )
188 Mlt::Service service( aservice );
190 service.set( "movit chain", NULL, 0 );
191 service.set( "movit input", NULL, 0 );
192 // Destroy the effect list.
193 GlslManager::get_instance()->set( service.get( "_unique_id" ), NULL, 0 );
197 void GlslManager::onPropertyChanged( mlt_properties owner, mlt_service service, const char* property )
199 if ( property && std::string( property ) == "disable" )
200 onServiceChanged( owner, service );
205 mlt_filter filter_glsl_manager_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
207 GlslManager* g = GlslManager::get_instance();
211 g = new GlslManager();
212 return g->get_filter();
217 Mlt::Properties GlslManager::effect_list( Mlt::Service& service )
219 char *unique_id = service.get( "_unique_id" );
220 mlt_properties properties = (mlt_properties) get_data( unique_id );
222 properties = mlt_properties_new();
223 set( unique_id, properties, 0, (mlt_destructor) mlt_properties_close );
225 Mlt::Properties p( properties );
229 static void deleteChain( EffectChain* chain )
234 bool GlslManager::init_chain( mlt_service aservice )
237 Mlt::Service service( aservice );
238 EffectChain* chain = (EffectChain*) service.get_data( "movit chain" );
240 mlt_profile profile = mlt_service_profile( aservice );
241 Input* input = new MltInput( profile->width, profile->height );
242 chain = new EffectChain( profile->display_aspect_num, profile->display_aspect_den );
243 chain->add_input( input );
244 service.set( "movit chain", chain, 0, (mlt_destructor) deleteChain );
245 service.set( "movit input", input, 0 );
246 service.set( "_movit finalized", 0 );
247 service.listen( "service-changed", aservice, (mlt_listener) GlslManager::onServiceChanged );
248 service.listen( "property-changed", aservice, (mlt_listener) GlslManager::onPropertyChanged );
254 EffectChain* GlslManager::get_chain( mlt_service service )
256 return (EffectChain*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit chain", NULL );
259 MltInput *GlslManager::get_input( mlt_service service )
261 return (MltInput*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit input", NULL );
264 void GlslManager::reset_finalized( mlt_service service )
266 mlt_properties_set_int( MLT_SERVICE_PROPERTIES(service), "_movit finalized", 0 );
269 Effect* GlslManager::get_effect( mlt_filter filter, mlt_frame frame )
271 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
272 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
273 return (Effect*) GlslManager::get_instance()->effect_list( producer ).get_data( unique_id );
276 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect )
278 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
279 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
280 chain->add_effect( effect );
281 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
282 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
286 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect, Effect* input_b )
288 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
289 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
290 chain->add_effect( effect, chain->last_added_effect(),
291 input_b? input_b : chain->last_added_effect() );
292 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
293 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
297 void GlslManager::render( mlt_service service, void* chain, GLuint fbo, int width, int height )
299 EffectChain* effect_chain = (EffectChain*) chain;
300 mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
301 if ( !mlt_properties_get_int( properties, "_movit finalized" ) ) {
302 mlt_properties_set_int( properties, "_movit finalized", 1 );
303 effect_chain->add_effect( new Mlt::VerticalFlip() );
304 effect_chain->finalize();
306 effect_chain->render_to_fbo( fbo, width, height );
309 void GlslManager::lock_service( mlt_frame frame )
311 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
315 void GlslManager::unlock_service( mlt_frame frame )
317 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );