4 * Copyright (C) 1997-2011 Adam Williams <broadcast at earthling dot net>
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
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #ifndef PLUGINCLIENT_H
23 #define PLUGINCLIENT_H
25 // Base class inherited by all the different types of plugins.
27 #define MAX_FRAME_BUFFER 1024
32 #include "arraylist.h"
34 #include "condition.h"
35 #include "edlsession.inc"
37 #include "mainprogress.inc"
38 #include "maxbuffers.h"
39 #include "pluginclient.inc"
40 #include "plugincommands.h"
41 #include "pluginserver.inc"
42 #include "samples.inc"
49 extern PluginClient* new_plugin(PluginServer *server);
52 class PluginClientAuto
63 // Convenience functions
65 #define REGISTER_PLUGIN(class_title) \
66 PluginClient* new_plugin(PluginServer *server) \
68 return new class_title(server); \
78 // Prototypes for user to put in class header
79 #define PLUGIN_CLASS_MEMBERS(config_name) \
80 int load_configuration(); \
81 const char* plugin_title(); \
82 PluginClientWindow* new_window(); \
87 // Prototypes for user to put in class header
88 #define PLUGIN_CLASS_MEMBERS2(config_name) \
89 int load_configuration(); \
90 const char* plugin_title(); \
91 PluginClientWindow* new_window(); \
98 #define NEW_WINDOW_MACRO(plugin_class, window_class) \
99 PluginClientWindow* plugin_class::new_window() \
101 return new window_class(this); \
104 // Not all plugins load configuration the same way. Use this to define
106 #define LOAD_CONFIGURATION_MACRO(plugin_class, config_class) \
107 int plugin_class::load_configuration() \
109 KeyFrame *prev_keyframe, *next_keyframe; \
110 prev_keyframe = get_prev_keyframe(get_source_position()); \
111 next_keyframe = get_next_keyframe(get_source_position()); \
113 int64_t next_position = edl_to_local(next_keyframe->position); \
114 int64_t prev_position = edl_to_local(prev_keyframe->position); \
116 config_class old_config, prev_config, next_config; \
117 old_config.copy_from(config); \
118 read_data(prev_keyframe); \
119 prev_config.copy_from(config); \
120 read_data(next_keyframe); \
121 next_config.copy_from(config); \
123 config.interpolate(prev_config, \
125 (next_position == prev_position) ? \
126 get_source_position() : \
128 (next_position == prev_position) ? \
129 get_source_position() + 1 : \
131 get_source_position()); \
133 if(!config.equivalent(old_config)) \
142 class PluginClientWindow : public BC_Window
145 PluginClientWindow(PluginClient *client,
151 PluginClientWindow(const char *title,
159 virtual ~PluginClientWindow();
161 virtual int translation_event();
162 virtual int close_event();
164 PluginClient *client;
170 class PluginClientThread : public Thread
173 PluginClientThread(PluginClient *client);
174 ~PluginClientThread();
177 friend class PluginClient;
179 BC_WindowBase* get_window();
180 PluginClient* get_client();
181 BC_WindowBase *window;
182 PluginClient *client;
185 Condition *init_complete;
190 // Client overrides for GUI update data
191 class PluginClientFrame
194 // Period_d is 1 second
195 PluginClientFrame(int data_size, int period_n, int period_d);
196 virtual ~PluginClientFrame();
209 PluginClient(PluginServer *server);
210 virtual ~PluginClient();
212 friend class PluginClientThread;
213 friend class PluginClientWindow;
215 // Queries for the plugin server.
216 virtual int is_realtime();
217 virtual int is_audio();
218 virtual int is_video();
219 virtual int is_fileio();
220 virtual int is_theme();
221 virtual int uses_gui();
222 virtual int is_multichannel();
223 virtual int is_synthesis();
224 virtual int is_transition();
225 virtual const char* plugin_title(); // return the title of the plugin
226 virtual Theme* new_theme();
227 // Get theme being used by Cinelerra currently. Used by all plugins.
235 // Non realtime signal processors define these.
236 // Give the samplerate of the output for a non realtime plugin.
237 // For realtime plugins give the requested samplerate.
238 virtual int get_samplerate();
239 // Give the framerate of the output for a non realtime plugin.
240 // For realtime plugins give the requested framerate.
241 virtual double get_framerate();
242 virtual int delete_nonrealtime_parameters();
243 virtual int get_parameters(); // get information from user before non realtime processing
244 virtual int64_t get_in_buffers(int64_t recommended_size); // return desired size for input buffers
245 virtual int64_t get_out_buffers(int64_t recommended_size); // return desired size for output buffers
246 virtual int start_loop();
247 virtual int process_loop();
248 virtual int stop_loop();
249 // Hash files are the defaults for rendered plugins
250 virtual int load_defaults(); // load default settings for the plugin
251 virtual int save_defaults(); // save the current settings as defaults
252 BC_Hash* get_defaults();
257 // Realtime commands for signal processors.
258 // These must be defined by the plugin itself.
259 // Set the GUI title identifying the plugin to modules and patches.
261 // cause the plugin to create a new GUI class
262 virtual BC_WindowBase* new_window();
263 // Load the current keyframe. Return 1 if it changed.
264 virtual int load_configuration();
265 // cause the plugin to hide the gui
266 void client_side_close();
267 void update_display_title();
272 // XML keyframes are the defaults for realtime plugins
273 void load_defaults_xml();
274 void save_defaults_xml();
275 // Tell the client if the load is the defaults
278 virtual void update_gui();
279 virtual void save_data(KeyFrame *keyframe) {}; // write the plugin settings to text in text format
280 virtual void read_data(KeyFrame *keyframe) {}; // read the plugin settings from the text
281 int send_hide_gui(); // should be sent when the GUI recieves a close event from the user
282 // Destroys the window but not the thread pointer.
285 int get_configure_change(); // get propogated configuration change from a send_configure_change
287 // Called by plugin server to update GUI with rendered data.
288 void plugin_render_gui(void *data);
289 void plugin_render_gui(void *data, int size);
291 void begin_process_buffer();
292 void end_process_buffer();
294 void plugin_update_gui();
295 virtual int plugin_process_loop(VFrame **buffers, int64_t &write_length) { return 1; };
296 virtual int plugin_process_loop(Samples **buffers, int64_t &write_length) { return 1; };
297 // get parameters depending on video or audio
298 virtual int init_realtime_parameters();
299 // release objects which are required after playback stops
300 virtual void render_stop() {};
301 int get_gui_status();
302 char* get_gui_string();
305 // Used by plugins which need to know where they are.
307 // Get the directory for plugins
308 char* get_plugin_dir();
310 // Return keyframe objects. The position in the resulting object
311 // is relative to the EDL rate. This is the only way to avoid copying the
312 // data for every frame.
313 // If the result is the default keyframe, the keyframe's position is 0.
314 // position - relative to EDL rate or local rate to allow simple
315 // passing of get_source_position.
316 // If -1 the tracking position in the edl is used.
317 // is_local - if 1, the position is converted to the EDL rate.
318 KeyFrame* get_prev_keyframe(int64_t position, int is_local = 1);
319 KeyFrame* get_next_keyframe(int64_t position, int is_local = 1);
320 // get current camera and projector position
321 void get_camera(float *x, float *y, float *z, int64_t position);
322 void get_projector(float *x, float *y, float *z, int64_t position);
323 // When this plugin is adjusted, propogate parameters back to EDL and virtual
324 // console. This gets a keyframe from the EDL, with the position set to the
325 // EDL tracking position.
326 int send_configure_change();
329 // Called from process_buffer
330 // Returns 1 if a GUI is open so OpenGL routines can determine if
336 // Length of source. For effects it's the plugin length. For transitions
337 // it's the transition length. Relative to the requested rate.
338 // The only way to get smooth interpolation is to make all position queries
339 // relative to the requested rate.
340 int64_t get_total_len();
342 // For realtime plugins gets the lowest sample of the plugin in the requested
343 // rate. For others it's the start of the EDL selection in the EDL rate.
344 int64_t get_source_start();
346 // Convert the position relative to the requested rate to the position
347 // relative to the EDL rate. If the argument is < 0, it is not changed.
348 // Used for interpreting keyframes.
349 virtual int64_t local_to_edl(int64_t position);
351 // Convert the EDL position to the local position.
352 virtual int64_t edl_to_local(int64_t position);
354 // For transitions the source_position is the playback position relative
355 // to the start of the transition.
356 // For realtime effects, the start of the most recent process_buffer in forward
357 // and the end of the range to process in reverse. Relative to start of EDL in
358 // the requested rate.
359 int64_t get_source_position();
361 // Get the EDL Session. May return 0 if the server has no edl.
362 EDLSession* get_edlsession();
365 // Get the direction of the most recent process_buffer
368 // Plugin must call this before performing OpenGL operations.
369 // Returns 1 if the user supports opengl buffers.
370 int get_use_opengl();
372 // Get total tracks to process
373 int get_total_buffers();
375 // Get size of buffer to fill in non-realtime plugin
376 int get_buffer_size();
378 // Get interpolation used by EDL from overlayframe.inc
379 int get_interpolation_type();
381 // Get the values from the color picker
388 // Operations for file handlers
389 virtual int open_file() { return 0; };
390 virtual int get_audio_parameters() { return 0; };
391 virtual int get_video_parameters() { return 0; };
392 virtual int check_header(char *path) { return 0; };
393 virtual int open_file(char *path, int wr, int rd) { return 1; };
394 virtual int close_file() { return 0; };
400 // All plugins define these.
401 PluginClientThread* get_thread();
405 // Non realtime operations for signal processors.
406 virtual int plugin_start_loop(int64_t start,
410 int plugin_stop_loop();
411 int plugin_process_loop();
412 MainProgressBar* start_progress(char *string, int64_t length);
413 // get samplerate of EDL
414 int get_project_samplerate();
415 // get framerate of EDL
416 double get_project_framerate();
418 const char *get_source_path();
419 // Total number of processors - 1
420 int get_project_smp();
421 int get_aspect_ratio(float &aspect_w, float &aspect_h);
424 int write_frames(int64_t total_frames); // returns 1 for failure / tells the server that all output channel buffers are ready to go
425 int write_samples(int64_t total_samples); // returns 1 for failure / tells the server that all output channel buffers are ready to go
426 virtual int plugin_get_parameters();
427 const char* get_defaultdir(); // Directory defaults should be stored in
428 void set_interactive();
430 // Realtime operations.
432 // Extension of plugin_run for derived plugins
433 virtual int plugin_command_derived(int plugin_command) { return 0; };
434 int plugin_get_range();
435 int plugin_init_realtime(int realtime_priority,
436 int total_in_buffers,
440 // GUI updating wrappers for realtime plugins
441 // Append frame to queue for next send_frame_buffer
442 void add_gui_frame(PluginClientFrame *frame);
446 virtual void render_gui(void *data);
447 virtual void render_gui(void *data, int size);
449 // Called by client to get the total number of frames to draw in update_gui
450 int get_gui_update_frames();
451 // Get GUI frame from frame_buffer. Client must delete it.
452 PluginClientFrame* get_gui_frame();
454 // Called by client to cause GUI to be rendered with data.
455 void send_render_gui();
456 void send_render_gui(void *data);
457 void send_render_gui(void *data, int size);
466 // create pointers to buffers of the plugin's type before realtime rendering
467 virtual int delete_buffer_ptrs();
472 // communication convenience routines for the base class
473 int stop_gui_client();
474 int save_data_client();
475 int load_data_client();
476 int set_string_client(char *string); // set the string identifying the plugin
477 int send_cancelled(); // non realtime plugin sends when cancelled
479 // ================================= Buffers ===============================
481 // number of double buffers for each channel
482 ArrayList<int> double_buffers_in;
483 ArrayList<int> double_buffers_out;
484 // When arming buffers need to know the offsets in all the buffers and which
485 // double buffers for each channel before rendering.
486 ArrayList<int64_t> offset_in_render;
487 ArrayList<int64_t> offset_out_render;
488 ArrayList<int64_t> double_buffer_in_render;
489 ArrayList<int64_t> double_buffer_out_render;
490 // total size of each buffer depends on if it's a master or node
491 ArrayList<int64_t> realtime_in_size;
492 ArrayList<int64_t> realtime_out_size;
494 // ================================= Automation ===========================
496 ArrayList<PluginClientAuto> automation;
498 // ================================== Messages ===========================
499 char gui_string[BCTEXTLEN]; // string identifying module and plugin
500 int master_gui_on; // Status of the master gui plugin
501 int client_gui_on; // Status of this client's gui
503 int show_initially; // set to show a realtime plugin initially
504 // range in project for processing
506 int interactive; // for the progress bar plugin
508 int total_out_buffers; // total send buffers allocated by the server
509 int total_in_buffers; // total recieve buffers allocated by the server
510 int wr, rd; // File permissions for fileio plugins.
512 // These give the largest fragment the plugin is expected to handle.
513 // size of a send buffer to the server
514 int64_t out_buffer_size;
515 // size of a recieve buffer from the server
516 int64_t in_buffer_size;
521 // Direction of most recent process_buffer
524 // Operating system scheduling
525 int realtime_priority;
527 // Position relative to start of EDL in requested rate. Calculated for every process
528 // command. Used for keyframes.
529 int64_t source_position;
530 // For realtime plugins gets the lowest sample of the plugin in the requested
531 // rate. For others it's always 0.
532 int64_t source_start;
533 // Length of source. For effects it's the plugin length. For transitions
534 // it's the transition length. Relative to the requested rate.
536 // Total number of processors available - 1
538 PluginServer *server;
540 PluginClientThread *thread;
542 // Frames for updating GUI
543 ArrayList<PluginClientFrame*> frame_buffer;
544 // Time of last GUI update
550 // Temporaries set in new_window
551 int window_x, window_y;
553 // Asset *asset; // Point to asset structure in shared memory