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
23 // Include a random Movit header file to get in GL.h, without including it
24 // ourselves (which might interfere with whatever OpenGL extension library
25 // Movit has chosen to use).
26 #include <movit/resource_pool.h>
28 #include <mlt++/MltFilter.h>
29 #include <mlt++/MltDeque.h>
33 #define MAXLISTCOUNT 1024
34 typedef struct glsl_list_s *glsl_list;
37 void *items[MAXLISTCOUNT];
40 int ( *add )( glsl_list, void* );
41 void* ( *at )( glsl_list, int );
42 void* ( *take_at )( glsl_list, int );
43 void* ( *take )( glsl_list, void* );
52 GLint internal_format;
54 typedef struct glsl_texture_s *glsl_texture;
61 typedef struct glsl_pbo_s *glsl_pbo;
75 movit::EffectChain *effect_chain;
77 // All MltInputs in the effect chain. These are not owned by the
78 // EffectChain (although the contained Input* is).
79 std::map<mlt_producer, MltInput*> inputs;
81 // All services owned by the effect chain and their associated Movit effect.
82 std::map<mlt_service, movit::Effect*> effects;
84 // For each effect in the Movit graph, a unique identifier for the service
85 // and whether it's disabled or not, using post-order traversal.
86 // We need to generate the chain if and only if this has changed.
87 std::string fingerprint;
90 class GlslManager : public Mlt::Filter
95 void add_ref(mlt_properties properties);
96 static GlslManager* get_instance();
98 glsl_texture get_texture(int width, int height, GLint internal_format);
99 static void release_texture(glsl_texture);
100 static void delete_sync(GLsync sync);
101 glsl_pbo get_pbo(int size);
102 void cleanupContext();
104 movit::ResourcePool* get_resource_pool() { return resource_pool; }
106 static void set_chain(mlt_service, GlslChain*);
107 static GlslChain* get_chain(mlt_service);
109 static movit::Effect* get_effect(mlt_service, mlt_frame);
110 static movit::Effect* set_effect(mlt_service, mlt_frame, movit::Effect*);
111 static MltInput* get_input(mlt_producer, mlt_frame);
112 static MltInput* set_input(mlt_producer, mlt_frame, MltInput*);
113 static uint8_t* get_input_pixel_pointer(mlt_producer, mlt_frame);
114 static uint8_t* set_input_pixel_pointer(mlt_producer, mlt_frame, uint8_t*);
116 static mlt_service get_effect_input(mlt_service, mlt_frame);
117 static void set_effect_input(mlt_service, mlt_frame, mlt_service);
118 static void get_effect_secondary_input(mlt_service, mlt_frame, mlt_service*, mlt_frame*);
119 static void set_effect_secondary_input(mlt_service, mlt_frame, mlt_service, mlt_frame);
120 static void get_effect_third_input(mlt_service, mlt_frame, mlt_service*, mlt_frame*);
121 static void set_effect_third_input(mlt_service, mlt_frame, mlt_service, mlt_frame);
123 int render_frame_texture(movit::EffectChain*, mlt_frame, int width, int height, uint8_t **image);
124 int render_frame_rgba(movit::EffectChain*, mlt_frame, int width, int height, uint8_t **image);
125 static void lock_service(mlt_frame frame);
126 static void unlock_service(mlt_frame frame);
129 static void* get_frame_specific_data( mlt_service service, mlt_frame frame, const char *key, int *length );
130 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 );
132 static void onInit( mlt_properties owner, GlslManager* filter );
133 static void onClose( mlt_properties owner, GlslManager* filter );
134 static void onServiceChanged( mlt_properties owner, mlt_service service );
135 static void onPropertyChanged( mlt_properties owner, mlt_service service, const char* property );
136 movit::ResourcePool* resource_pool;
137 Mlt::Deque texture_list;
138 Mlt::Deque syncs_to_delete;
140 Mlt::Event* initEvent;
141 Mlt::Event* closeEvent;
145 #endif // GLSL_MANAGER_H