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
26 #include "histogram.inc"
27 #include "histogramconfig.h"
28 #include "histogramwindow.inc"
29 #include "loadbalance.h"
31 #include "pluginvclient.h"
34 class HistogramMain : public PluginVClient
37 HistogramMain(PluginServer *server);
40 int process_buffer(VFrame *frame,
41 int64_t start_position,
44 void save_data(KeyFrame *keyframe);
45 void read_data(KeyFrame *keyframe);
47 void render_gui(void *data);
48 int calculate_use_opengl();
51 PLUGIN_CLASS_MEMBERS(HistogramConfig)
53 // Interpolate quantized transfer table to linear output
54 float calculate_level(float input, int mode, int do_value);
55 // Convert input to smoothed output by looking up in smooth table.
56 float calculate_curve(float input);
57 // Calculate automatic settings
58 void calculate_automatic(VFrame *data);
59 // Calculate histogram.
60 // Value is only calculated for preview.
61 void calculate_histogram(VFrame *data, int do_value);
62 // Calculate the linear, smoothed, lookup curves
63 void tabulate_curve(int subscript, int use_value);
69 VFrame *input, *output;
70 HistogramEngine *engine;
71 int *lookup[HISTOGRAM_MODES];
72 // No value applied to this
73 int *preview_lookup[HISTOGRAM_MODES];
74 int *accum[HISTOGRAM_MODES];
75 // Input point being dragged or edited
77 // Current channel being viewed
86 class HistogramPackage : public LoadPackage
93 class HistogramUnit : public LoadClient
96 HistogramUnit(HistogramEngine *server, HistogramMain *plugin);
98 void process_package(LoadPackage *package);
99 HistogramEngine *server;
100 HistogramMain *plugin;
104 class HistogramEngine : public LoadServer
107 HistogramEngine(HistogramMain *plugin,
110 void process_packages(int operation, VFrame *data, int do_value);
111 void init_packages();
112 LoadClient* new_client();
113 LoadPackage* new_package();
114 HistogramMain *plugin;