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() )
45 mlt_filter filter = get_filter();
47 // Set the mlt_filter child in case we choose to override virtual functions.
49 mlt_properties_set_data(mlt_global_properties(), "glslManager", this, 0,
50 (mlt_destructor) deleteManager, NULL);
52 mlt_events_register( get_properties(), "init glsl", NULL );
53 initEvent = listen("init glsl", this, (mlt_listener) GlslManager::onInit);
57 GlslManager::~GlslManager()
59 mlt_log_debug(get_service(), "%s\n", __FUNCTION__);
60 while (fbo_list.peek_back())
61 delete (glsl_fbo) fbo_list.pop_back();
62 while (texture_list.peek_back())
63 delete (glsl_texture) texture_list.pop_back();
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);
165 if (size > pbo->size) {
166 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo->pbo);
167 glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, size, NULL, GL_STREAM_DRAW);
168 glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
174 void GlslManager::onInit( mlt_properties owner, GlslManager* filter )
176 mlt_log_debug( filter->get_service(), "%s\n", __FUNCTION__ );
178 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("\\share\\movit");
179 #elif defined(__DARWIN__) && defined(RELOCATABLE)
180 std::string path = std::string(mlt_environment("MLT_APPDIR")).append("/share/movit");
182 std::string path = std::string(getenv("MLT_MOVIT_PATH") ? getenv("MLT_MOVIT_PATH") : SHADERDIR);
184 ::init_movit( path, mlt_log_get_level() == MLT_LOG_DEBUG? MOVIT_DEBUG_ON : MOVIT_DEBUG_OFF );
185 filter->set( "glsl_supported", movit_initialized );
188 void GlslManager::onServiceChanged( mlt_properties owner, mlt_service aservice )
190 Mlt::Service service( aservice );
192 service.set( "movit chain", NULL, 0 );
193 service.set( "movit input", NULL, 0 );
194 // Destroy the effect list.
195 GlslManager::get_instance()->set( service.get( "_unique_id" ), NULL, 0 );
199 void GlslManager::onPropertyChanged( mlt_properties owner, mlt_service service, const char* property )
201 if ( property && std::string( property ) == "disable" )
202 onServiceChanged( owner, service );
207 mlt_filter filter_glsl_manager_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
209 GlslManager* g = GlslManager::get_instance();
213 g = new GlslManager();
214 return g->get_filter();
219 Mlt::Properties GlslManager::effect_list( Mlt::Service& service )
221 char *unique_id = service.get( "_unique_id" );
222 mlt_properties properties = (mlt_properties) get_data( unique_id );
224 properties = mlt_properties_new();
225 set( unique_id, properties, 0, (mlt_destructor) mlt_properties_close );
227 Mlt::Properties p( properties );
231 static void deleteChain( EffectChain* chain )
236 bool GlslManager::init_chain( mlt_service aservice )
239 Mlt::Service service( aservice );
240 EffectChain* chain = (EffectChain*) service.get_data( "movit chain" );
242 mlt_profile profile = mlt_service_profile( aservice );
243 Input* input = new MltInput( profile->width, profile->height );
244 chain = new EffectChain( profile->display_aspect_num, profile->display_aspect_den );
245 chain->add_input( input );
246 service.set( "movit chain", chain, 0, (mlt_destructor) deleteChain );
247 service.set( "movit input", input, 0 );
248 service.set( "_movit finalized", 0 );
249 service.listen( "service-changed", aservice, (mlt_listener) GlslManager::onServiceChanged );
250 service.listen( "property-changed", aservice, (mlt_listener) GlslManager::onPropertyChanged );
256 EffectChain* GlslManager::get_chain( mlt_service service )
258 return (EffectChain*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit chain", NULL );
261 MltInput *GlslManager::get_input( mlt_service service )
263 return (MltInput*) mlt_properties_get_data( MLT_SERVICE_PROPERTIES(service), "movit input", NULL );
266 void GlslManager::reset_finalized( mlt_service service )
268 mlt_properties_set_int( MLT_SERVICE_PROPERTIES(service), "_movit finalized", 0 );
271 Effect* GlslManager::get_effect( mlt_filter filter, mlt_frame frame )
273 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
274 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
275 return (Effect*) GlslManager::get_instance()->effect_list( producer ).get_data( unique_id );
278 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect )
280 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
281 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
282 chain->add_effect( effect );
283 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
284 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
288 Effect* GlslManager::add_effect( mlt_filter filter, mlt_frame frame, Effect* effect, Effect* input_b )
290 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
291 EffectChain* chain = (EffectChain*) producer.get_data( "movit chain" );
292 chain->add_effect( effect, chain->last_added_effect(),
293 input_b? input_b : chain->last_added_effect() );
294 char *unique_id = mlt_properties_get( MLT_FILTER_PROPERTIES(filter), "_unique_id" );
295 GlslManager::get_instance()->effect_list( producer ).set( unique_id, effect, 0 );
299 void GlslManager::render( mlt_service service, void* chain, GLuint fbo, int width, int height )
301 EffectChain* effect_chain = (EffectChain*) chain;
302 mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
303 if ( !mlt_properties_get_int( properties, "_movit finalized" ) ) {
304 mlt_properties_set_int( properties, "_movit finalized", 1 );
305 effect_chain->add_effect( new Mlt::VerticalFlip() );
306 effect_chain->finalize();
308 effect_chain->render_to_fbo( fbo, width, height );
311 void GlslManager::lock_service( mlt_frame frame )
313 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );
317 void GlslManager::unlock_service( mlt_frame frame )
319 Mlt::Producer producer( mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) ) );