git.sesse.net Git - casparcg/blob - core/producer/frame/frame_transform.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../../stdafx.h"\r
  23 \r
  24 #include "frame_transform.h"\r
  25 \r
  26 #include <common/utility/assert.h>\r
  27 \r
  28 namespace caspar { namespace core {\r
  29                 \r
  30 frame_transform::frame_transform() \r
  31         : volume(1.0)\r
  32         , opacity(1.0)\r
  33         , brightness(1.0)\r
  34         , contrast(1.0)\r
  35         , saturation(1.0)\r
  36         , field_mode(field_mode::progressive)\r
  37         , is_key(false)\r
  38         , is_mix(false)\r
  39 {\r
  40         std::fill(fill_translation.begin(), fill_translation.end(), 0.0);\r
  41         std::fill(fill_scale.begin(), fill_scale.end(), 1.0);\r
  42         std::fill(clip_translation.begin(), clip_translation.end(), 0.0);\r
  43         std::fill(clip_scale.begin(), clip_scale.end(), 1.0);\r
  44 }\r
  45 \r
  46 frame_transform& frame_transform::operator*=(const frame_transform &other)\r
  47 {\r
  48         volume                                  *= other.volume;\r
  49         opacity                                 *= other.opacity;       \r
  50         brightness                              *= other.brightness;\r
  51         contrast                                *= other.contrast;\r
  52         saturation                              *= other.saturation;\r
  53         fill_translation[0]             += other.fill_translation[0]*fill_scale[0];\r
  54         fill_translation[1]             += other.fill_translation[1]*fill_scale[1];\r
  55         fill_scale[0]                   *= other.fill_scale[0];\r
  56         fill_scale[1]                   *= other.fill_scale[1];\r
  57         clip_translation[0]             += other.clip_translation[0]*clip_scale[0];\r
  58         clip_translation[1]             += other.clip_translation[1]*clip_scale[1];\r
  59         clip_scale[0]                   *= other.clip_scale[0];\r
  60         clip_scale[1]                   *= other.clip_scale[1];\r
  61         levels.min_input                 = std::max(levels.min_input,  other.levels.min_input);\r
  62         levels.max_input                 = std::min(levels.max_input,  other.levels.max_input); \r
  63         levels.min_output                = std::max(levels.min_output, other.levels.min_output);\r
  64         levels.max_output                = std::min(levels.max_output, other.levels.max_output);\r
  65         levels.gamma                    *= other.levels.gamma;\r
  66         field_mode                               = static_cast<field_mode::type>(field_mode & other.field_mode);\r
  67         is_key                                  |= other.is_key;\r
  68         is_mix                                  |= other.is_mix;\r
  69         return *this;\r
  70 }\r
  71 \r
  72 frame_transform frame_transform::operator*(const frame_transform &other) const\r
  73 {\r
  74         return frame_transform(*this) *= other;\r
  75 }\r
  76 \r
  77 frame_transform tween(double time, const frame_transform& source, const frame_transform& dest, double duration, const tweener_t& tweener)\r
  78 {       \r
  79         auto do_tween = [](double time, double source, double dest, double duration, const tweener_t& tweener)\r
  80         {\r
  81                 return tweener(time, source, dest-source, duration);\r
  82         };\r
  83         \r
  84         frame_transform result; \r
  85         result.volume                           = do_tween(time, source.volume,                                 dest.volume,                            duration, tweener);\r
  86         result.brightness                       = do_tween(time, source.brightness,                             dest.brightness,                        duration, tweener);\r
  87         result.contrast                         = do_tween(time, source.contrast,                               dest.contrast,                          duration, tweener);\r
  88         result.saturation                       = do_tween(time, source.saturation,                             dest.saturation,                        duration, tweener);\r
  89         result.opacity                          = do_tween(time, source.opacity,                                dest.opacity,                           duration, tweener);     \r
  90         result.fill_translation[0]      = do_tween(time, source.fill_translation[0],    dest.fill_translation[0],       duration, tweener), \r
  91         result.fill_translation[1]      = do_tween(time, source.fill_translation[1],    dest.fill_translation[1],       duration, tweener);             \r
  92         result.fill_scale[0]            = do_tween(time, source.fill_scale[0],                  dest.fill_scale[0],                     duration, tweener), \r
  93         result.fill_scale[1]            = do_tween(time, source.fill_scale[1],                  dest.fill_scale[1],                     duration, tweener);     \r
  94         result.clip_translation[0]      = do_tween(time, source.clip_translation[0],    dest.clip_translation[0],       duration, tweener), \r
  95         result.clip_translation[1]      = do_tween(time, source.clip_translation[1],    dest.clip_translation[1],       duration, tweener);             \r
  96         result.clip_scale[0]            = do_tween(time, source.clip_scale[0],                  dest.clip_scale[0],                     duration, tweener), \r
  97         result.clip_scale[1]            = do_tween(time, source.clip_scale[1],                  dest.clip_scale[1],                     duration, tweener);\r
  98         result.levels.max_input         = do_tween(time, source.levels.max_input,               dest.levels.max_input,          duration, tweener);\r
  99         result.levels.min_input         = do_tween(time, source.levels.min_input,               dest.levels.min_input,          duration, tweener);     \r
 100         result.levels.max_output        = do_tween(time, source.levels.max_output,              dest.levels.max_output,         duration, tweener);\r
 101         result.levels.min_output        = do_tween(time, source.levels.min_output,              dest.levels.min_output,         duration, tweener);\r
 102         result.levels.gamma                     = do_tween(time, source.levels.gamma,                   dest.levels.gamma,                      duration, tweener);\r
 103         result.field_mode                       = static_cast<field_mode::type>(source.field_mode & dest.field_mode);\r
 104         result.is_key                           = source.is_key | dest.is_key;\r
 105         result.is_mix                           = source.is_mix | dest.is_mix;\r
 106         \r
 107         return result;\r
 108 }\r
 109 \r
 110 bool operator<(const frame_transform& lhs, const frame_transform& rhs)\r
 111 {\r
 112         return memcmp(&lhs, &rhs, sizeof(frame_transform)) < 0;\r
 113 }\r
 114 \r
 115 bool operator==(const frame_transform& lhs, const frame_transform& rhs)\r
 116 {\r
 117         return memcmp(&lhs, &rhs, sizeof(frame_transform)) == 0;\r
 118 }\r
 119 \r
 120 bool operator!=(const frame_transform& lhs, const frame_transform& rhs)\r
 121 {\r
 122         return !(lhs == rhs);\r
 123 }\r
 124 \r
 125 }}