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() )
46 mlt_filter filter = get_filter();
48 // Set the mlt_filter child in case we choose to override virtual functions.
50 mlt_properties_set_data(mlt_global_properties(), "glslManager", this, 0,
51 (mlt_destructor) deleteManager, NULL);
53 mlt_events_register( get_properties(), "init glsl", NULL );
54 mlt_events_register( get_properties(), "close glsl", NULL );
55 initEvent = listen("init glsl", this, (mlt_listener) GlslManager::onInit);
56 closeEvent = listen("close glsl", this, (mlt_listener) GlslManager::onClose);
60 GlslManager::~GlslManager()
62 mlt_log_debug(get_service(), "%s\n", __FUNCTION__);
68 GlslManager* GlslManager::get_instance()
70 return (GlslManager*) mlt_properties_get_data(mlt_global_properties(), "glslManager", 0);
73 glsl_fbo GlslManager::get_fbo(int width, int height)
75 for (int i = 0; i < fbo_list.count(); ++i) {
76 glsl_fbo fbo = (glsl_fbo) fbo_list.peek(i);
77 if (!fbo->used && (fbo->width == width) && (fbo->height == height)) {
83 glGenFramebuffers(1, &fb);
87 glsl_fbo fbo = new glsl_fbo_s;
89 glDeleteFramebuffers(1, &fb);
96 fbo_list.push_back(fbo);
100 void GlslManager::release_fbo(glsl_fbo fbo)
105 glsl_texture GlslManager::get_texture(int width, int height, GLint internal_format)
107 for (int i = 0; i < texture_list.count(); ++i) {
108 glsl_texture tex = (glsl_texture) texture_list.peek(i);
109 if (!tex->used && (tex->width == width) && (tex->height == height) && (tex->internal_format == internal_format)) {
110 glBindTexture(GL_TEXTURE_2D, tex->texture);
111 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
112 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
113 glBindTexture( GL_TEXTURE_2D, 0);
119 glGenTextures(1, &tex);
123 glsl_texture gtex = new glsl_texture_s;
125 glDeleteTextures(1, &tex);
128 glBindTexture( GL_TEXTURE_2D, tex );
129 glTexImage2D( GL_TEXTURE_2D, 0, internal_format, width, height, 0, internal_format, GL_UNSIGNED_BYTE, NULL );
130 glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
131 glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
132 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
133 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
134 glBindTexture( GL_TEXTURE_2D, 0 );
138 gtex->height = height;
139 gtex->internal_format = internal_format;
141 texture_list.push_back(gtex);
145 void GlslManager::release_texture(glsl_texture texture)
150 glsl_pbo GlslManager::get_pbo(int size)
154 glGenBuffers(1, &pb);
158 pbo = new glsl_pbo_s;
160 glDeleteBuffers(1, &pb);
166 if (size > pbo->size) {
167 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo->pbo);
168 glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, size, NULL, GL_STREAM_DRAW);
169 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
175 void GlslManager::cleanupContext()
177 while (fbo_list.peek_back()) {
178 glsl_fbo fbo = (glsl_fbo) fbo_list.pop_back();
179 glDeleteFramebuffers(1, &fbo->fbo);
182 while (texture_list.peek_back()) {
183 glsl_texture texture = (glsl_texture) texture_list.pop_back();
184 glDeleteTextures(1, &texture->texture);
188 glDeleteBuffers(1, &pbo->pbo);
194 void GlslManager::onInit( mlt_properties owner, GlslManager* filter )
196 mlt_log_debug( filter->get_service(), "%s\n", __FUNCTION__ );
198 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("\\share\\movit");
199 #elif defined(__DARWIN__) && defined(RELOCATABLE)
200 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("/share/movit");
202 std::string path = std::string(getenv("MLT_MOVIT_PATH") ? getenv("MLT_MOVIT_PATH") : SHADERDIR);
204 ::init_movit( path, mlt_log_get_level() == MLT_LOG_DEBUG? MOVIT_DEBUG_ON : MOVIT_DEBUG_OFF );
205 filter->set( "glsl_supported", movit_initialized );
208 void GlslManager::onClose( mlt_properties owner, GlslManager *filter )
210 filter->cleanupContext();
213 void GlslManager::onServiceChanged( mlt_properties owner, mlt_service aservice )
215 Mlt::Service service( aservice );
217 service.set( "movit chain", NULL, 0 );
218 service.set( "movit input", NULL, 0 );
219 // Destroy the effect list.
220 GlslManager::get_instance()->set( service.get( "_unique_id" ), NULL, 0 );
224 void GlslManager::onPropertyChanged( mlt_properties owner, mlt_service service, const char* property )
226 if ( property && std::string( property ) == "disable" )
227 onServiceChanged( owner, service );
232 mlt_filter filter_glsl_manager_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
234 GlslManager* g = GlslManager::get_instance();
238 g = new GlslManager();
239 return g->get_filter();
244 Mlt::Properties GlslManager::effect_list( Mlt::Service& service )
246 char *unique_id = service.get( "_unique_id" );
247 mlt_properties properties = (mlt_properties) get_data( unique_id );
249 properties = mlt_properties_new();
250 set( unique_id, properties, 0, (mlt_destructor) mlt_properties_close );
252 Mlt::Properties p( properties );
256 static void deleteChain( EffectChain* chain )
261 bool GlslManager::init_chain( mlt_service aservice )
264 Mlt::Service service( aservice );
265 EffectChain* chain = (EffectChain*) service.get_data( "movit chain" );
267 mlt_profile profile = mlt_service_profile( aservice );
268 Input* input = new MltInput( profile->width, profile->height );
269 chain = new EffectChain( profile->display_aspect_num, profile->display_aspect_den );
270 chain->add_input( input );
271 service.set( "movit chain", chain, 0, (mlt_destructor) deleteChain );
272 service.set( "movit input", input, 0 );
273 service.set( "_movit finalized", 0 );
274 service.listen( "service-changed", aservice, (mlt_listener) GlslManager::onServiceChanged );
275 service.listen( "property-changed", aservice, (mlt_listener) GlslManager::onPropertyChanged );
281 EffectChain* GlslManager::get_chain( mlt_service service )
283 return (EffectChain*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit chain", NULL );
286 MltInput *GlslManager::get_input( mlt_service service )
288 return (MltInput*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit input", NULL );
291 void GlslManager::reset_finalized( mlt_service service )
293 mlt_properties_set_int( MLT_SERVICE_PROPERTIES(service), "_movit finalized", 0 );
296 Effect* GlslManager::get_effect( mlt_filter filter, mlt_frame frame )
298 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
299 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
300 return (Effect*) GlslManager::get_instance()->effect_list( producer ).get_data( unique_id );
303 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect )
305 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
306 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
307 chain->add_effect( effect );
308 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
309 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
313 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect, Effect* input_b )
315 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
316 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
317 chain->add_effect( effect, chain->last_added_effect(),
318 input_b? input_b : chain->last_added_effect() );
319 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
320 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
324 void GlslManager::render( mlt_service service, void* chain, GLuint fbo, int width, int height )
326 EffectChain* effect_chain = (EffectChain*) chain;
327 mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
328 if ( !mlt_properties_get_int( properties, "_movit finalized" ) ) {
329 mlt_properties_set_int( properties, "_movit finalized", 1 );
330 effect_chain->add_effect( new Mlt::VerticalFlip() );
331 effect_chain->finalize();
333 effect_chain->render_to_fbo( fbo, width, height );
336 void GlslManager::lock_service( mlt_frame frame )
338 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
342 void GlslManager::unlock_service( mlt_frame frame )
344 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );