git.sesse.net Git - casparcg/blob - core/mixer/image/image_mixer.h

   1 #pragma once\r
   2 \r
   3 #include "../gpu/host_buffer.h"\r
   4 \r
   5 #include "../../video_format.h"\r
   6 \r
   7 #include <boost/tuple/tuple.hpp>\r
   8 #include <boost/thread/future.hpp>\r
   9 #include <boost/noncopyable.hpp>\r
  10 \r
  11 #include <memory>\r
  12 #include <array>\r
  13 \r
  14 namespace caspar { namespace core {\r
  15 \r
  16 struct pixel_format_desc;\r
  17         \r
  18 struct image_transform \r
  19 {\r
  20         image_transform() : alpha(1.0), pos(boost::make_tuple(0.0, 0.0)), gain(1.0), uv(boost::make_tuple(0.0, 0.0, 0.0, 0.0)), mode(video_mode::invalid){}\r
  21         double alpha;\r
  22         double gain;\r
  23         boost::tuple<double, double> pos;\r
  24         boost::tuple<double, double, double, double> uv;\r
  25         video_mode::type mode; \r
  26 \r
  27         image_transform& operator*=(const image_transform &other);\r
  28         const image_transform operator*(const image_transform &other) const;\r
  29 };\r
  30 \r
  31 class image_mixer : boost::noncopyable\r
  32 {\r
  33 public:\r
  34         image_mixer(const video_format_desc& format_desc);\r
  35 \r
  36         void begin(const image_transform& transform);\r
  37         void process(const pixel_format_desc& desc, std::vector<safe_ptr<host_buffer>>& buffers);\r
  38         void end();\r
  39 \r
  40         boost::unique_future<safe_ptr<const host_buffer>> begin_pass();\r
  41         void end_pass();\r
  42 \r
  43         std::vector<safe_ptr<host_buffer>> create_buffers(const pixel_format_desc& format);\r
  44 \r
  45 private:\r
  46         struct implementation;\r
  47         std::shared_ptr<implementation> impl_;\r
  48 };\r
  49 \r
  50 }}