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)
76 for (int i = 0; i < fbo_list.count(); ++i) {
77 glsl_fbo fbo = (glsl_fbo) fbo_list.peek(i);
78 if (!fbo->used && (fbo->width == width) && (fbo->height == height)) {
87 glGenFramebuffers(1, &fb);
91 glsl_fbo fbo = new glsl_fbo_s;
93 glDeleteFramebuffers(1, &fb);
101 fbo_list.push_back(fbo);
106 void GlslManager::release_fbo(glsl_fbo fbo)
111 glsl_texture GlslManager::get_texture(int width, int height, GLint internal_format)
114 for (int i = 0; i < texture_list.count(); ++i) {
115 glsl_texture tex = (glsl_texture) texture_list.peek(i);
116 if (!tex->used && (tex->width == width) && (tex->height == height) && (tex->internal_format == internal_format)) {
117 glBindTexture(GL_TEXTURE_2D, tex->texture);
118 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
119 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
120 glBindTexture( GL_TEXTURE_2D, 0);
129 glGenTextures(1, &tex);
133 glsl_texture gtex = new glsl_texture_s;
135 glDeleteTextures(1, &tex);
138 glBindTexture( GL_TEXTURE_2D, tex );
139 glTexImage2D( GL_TEXTURE_2D, 0, internal_format, width, height, 0, internal_format, GL_UNSIGNED_BYTE, NULL );
140 glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
141 glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
142 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
143 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
144 glBindTexture( GL_TEXTURE_2D, 0 );
148 gtex->height = height;
149 gtex->internal_format = internal_format;
152 texture_list.push_back(gtex);
157 void GlslManager::release_texture(glsl_texture texture)
162 glsl_pbo GlslManager::get_pbo(int size)
167 glGenBuffers(1, &pb);
173 pbo = new glsl_pbo_s;
175 glDeleteBuffers(1, &pb);
182 if (size > pbo->size) {
183 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo->pbo);
184 glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, size, NULL, GL_STREAM_DRAW);
185 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
192 void GlslManager::cleanupContext()
195 while (fbo_list.peek_back()) {
196 glsl_fbo fbo = (glsl_fbo) fbo_list.pop_back();
197 glDeleteFramebuffers(1, &fbo->fbo);
200 while (texture_list.peek_back()) {
201 glsl_texture texture = (glsl_texture) texture_list.pop_back();
202 glDeleteTextures(1, &texture->texture);
206 glDeleteBuffers(1, &pbo->pbo);
213 void GlslManager::onInit( mlt_properties owner, GlslManager* filter )
215 mlt_log_debug( filter->get_service(), "%s\n", __FUNCTION__ );
217 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("\\share\\movit");
218 #elif defined(__DARWIN__) && defined(RELOCATABLE)
219 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("/share/movit");
221 std::string path = std::string(getenv("MLT_MOVIT_PATH") ? getenv("MLT_MOVIT_PATH") : SHADERDIR);
223 ::init_movit( path, mlt_log_get_level() == MLT_LOG_DEBUG? MOVIT_DEBUG_ON : MOVIT_DEBUG_OFF );
224 filter->set( "glsl_supported", movit_initialized );
227 void GlslManager::onClose( mlt_properties owner, GlslManager *filter )
229 filter->cleanupContext();
232 void GlslManager::onServiceChanged( mlt_properties owner, mlt_service aservice )
234 Mlt::Service service( aservice );
236 service.set( "movit chain", NULL, 0 );
237 service.set( "movit input", NULL, 0 );
238 // Destroy the effect list.
239 GlslManager::get_instance()->set( service.get( "_unique_id" ), NULL, 0 );
243 void GlslManager::onPropertyChanged( mlt_properties owner, mlt_service service, const char* property )
245 if ( property && std::string( property ) == "disable" )
246 onServiceChanged( owner, service );
251 mlt_filter filter_glsl_manager_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
253 GlslManager* g = GlslManager::get_instance();
257 g = new GlslManager();
258 return g->get_filter();
263 Mlt::Properties GlslManager::effect_list( Mlt::Service& service )
265 char *unique_id = service.get( "_unique_id" );
266 mlt_properties properties = (mlt_properties) get_data( unique_id );
268 properties = mlt_properties_new();
269 set( unique_id, properties, 0, (mlt_destructor) mlt_properties_close );
271 Mlt::Properties p( properties );
275 static void deleteChain( EffectChain* chain )
280 bool GlslManager::init_chain( mlt_service aservice )
283 Mlt::Service service( aservice );
284 EffectChain* chain = (EffectChain*) service.get_data( "movit chain" );
286 mlt_profile profile = mlt_service_profile( aservice );
287 Input* input = new MltInput( profile->width, profile->height );
288 chain = new EffectChain( profile->display_aspect_num, profile->display_aspect_den );
289 chain->add_input( input );
290 service.set( "movit chain", chain, 0, (mlt_destructor) deleteChain );
291 service.set( "movit input", input, 0 );
292 service.set( "_movit finalized", 0 );
293 service.listen( "service-changed", aservice, (mlt_listener) GlslManager::onServiceChanged );
294 service.listen( "property-changed", aservice, (mlt_listener) GlslManager::onPropertyChanged );
300 EffectChain* GlslManager::get_chain( mlt_service service )
302 return (EffectChain*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit chain", NULL );
305 MltInput *GlslManager::get_input( mlt_service service )
307 return (MltInput*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit input", NULL );
310 void GlslManager::reset_finalized( mlt_service service )
312 mlt_properties_set_int( MLT_SERVICE_PROPERTIES(service), "_movit finalized", 0 );
315 Effect* GlslManager::get_effect( mlt_filter filter, mlt_frame frame )
317 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
318 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
319 return (Effect*) GlslManager::get_instance()->effect_list( producer ).get_data( unique_id );
322 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect )
324 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
325 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
326 chain->add_effect( effect );
327 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
328 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
332 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect, Effect* input_b )
334 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
335 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
336 chain->add_effect( effect, chain->last_added_effect(),
337 input_b? input_b : chain->last_added_effect() );
338 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
339 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
343 void GlslManager::render( mlt_service service, void* chain, GLuint fbo, int width, int height )
345 EffectChain* effect_chain = (EffectChain*) chain;
346 mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
347 if ( !mlt_properties_get_int( properties, "_movit finalized" ) ) {
348 mlt_properties_set_int( properties, "_movit finalized", 1 );
349 effect_chain->add_effect( new Mlt::VerticalFlip() );
350 effect_chain->finalize();
352 effect_chain->render_to_fbo( fbo, width, height );
355 void GlslManager::lock_service( mlt_frame frame )
357 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
361 void GlslManager::unlock_service( mlt_frame frame )
363 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );