2 * filter_glsl_manager.h
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 #ifndef GLSL_MANAGER_H
21 #define GLSL_MANAGER_H
24 #include <mlt++/MltFilter.h>
25 #include <mlt++/MltDeque.h>
29 #define MAXLISTCOUNT 1024
30 typedef struct glsl_list_s *glsl_list;
33 void *items[MAXLISTCOUNT];
36 int ( *add )( glsl_list, void* );
37 void* ( *at )( glsl_list, int );
38 void* ( *take_at )( glsl_list, int );
39 void* ( *take )( glsl_list, void* );
48 GLint internal_format;
50 typedef struct glsl_texture_s *glsl_texture;
60 typedef struct glsl_fbo_s *glsl_fbo;
67 typedef struct glsl_pbo_s *glsl_pbo;
76 EffectChain *effect_chain;
78 // All MltInputs in the effect chain. These are not owned by the
79 // EffectChain (although the contained Input* is).
80 std::map<mlt_producer, MltInput*> inputs;
82 // All services owned by the effect chain and their associated Movit effect.
83 std::map<mlt_service, Effect*> effects;
85 // For each effect in the Movit graph, a unique identifier for the service
86 // and whether it's disabled or not, using post-order traversal.
87 // We need to generate the chain if and only if this has changed.
88 std::string fingerprint;
91 class GlslManager : public Mlt::Filter
96 void add_ref(mlt_properties properties);
97 static GlslManager* get_instance();
99 glsl_fbo get_fbo(int width, int height);
100 static void release_fbo(glsl_fbo);
101 glsl_texture get_texture(int width, int height, GLint internal_format);
102 static void release_texture(glsl_texture);
103 static void delete_sync(GLsync sync);
104 glsl_pbo get_pbo(int size);
105 void cleanupContext();
107 ResourcePool* get_resource_pool() { return resource_pool; }
109 static void set_chain(mlt_service, GlslChain*);
110 static GlslChain* get_chain(mlt_service);
112 static Effect* get_effect(mlt_service, mlt_frame);
113 static Effect* set_effect(mlt_service, mlt_frame, Effect*);
114 static MltInput* get_input(mlt_producer, mlt_frame);
115 static MltInput* set_input(mlt_producer, mlt_frame, MltInput*);
116 static uint8_t* get_input_pixel_pointer(mlt_producer, mlt_frame);
117 static uint8_t* set_input_pixel_pointer(mlt_producer, mlt_frame, uint8_t*);
119 static mlt_service get_effect_input(mlt_service, mlt_frame);
120 static void set_effect_input(mlt_service, mlt_frame, mlt_service);
121 static void get_effect_secondary_input(mlt_service, mlt_frame, mlt_service*, mlt_frame*);
122 static void set_effect_secondary_input(mlt_service, mlt_frame, mlt_service, mlt_frame);
124 int render_frame_texture(EffectChain*, mlt_frame, int width, int height, uint8_t **image);
125 int render_frame_rgba(EffectChain*, mlt_frame, int width, int height, uint8_t **image);
126 static void lock_service(mlt_frame frame);
127 static void unlock_service(mlt_frame frame);
130 static void* get_frame_specific_data( mlt_service service, mlt_frame frame, const char *key, int *length );
131 static int set_frame_specific_data( mlt_service service, mlt_frame frame, const char *key, void *value, int length, mlt_destructor destroy, mlt_serialiser serialise );
133 static void onInit( mlt_properties owner, GlslManager* filter );
134 static void onClose( mlt_properties owner, GlslManager* filter );
135 static void onServiceChanged( mlt_properties owner, mlt_service service );
136 static void onPropertyChanged( mlt_properties owner, mlt_service service, const char* property );
137 ResourcePool* resource_pool;
139 Mlt::Deque texture_list;
140 Mlt::Deque syncs_to_delete;
142 Mlt::Event* initEvent;
143 Mlt::Event* closeEvent;
147 #endif // GLSL_MANAGER_H