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 class image_transform \r
  19 {\r
  20 public:\r
  21         image_transform();\r
  22 \r
  23         void set_opacity(double value);\r
  24         double get_opacity() const;\r
  25 \r
  26         void set_gain(double value);\r
  27         double get_gain() const;\r
  28 \r
  29         void set_position(double x, double y);\r
  30         std::array<double, 2> get_position() const;\r
  31 \r
  32         void set_size(double x, double ys);\r
  33         std::array<double, 2> get_size() const; \r
  34 \r
  35         void set_uv(double left, double top, double right, double bottom);\r
  36         std::array<double, 4> get_uv() const;\r
  37 \r
  38         void set_mode(video_mode::type mode);\r
  39         video_mode::type get_mode() const;\r
  40 \r
  41         image_transform& operator*=(const image_transform &other);\r
  42         const image_transform operator*(const image_transform &other) const;\r
  43 private:\r
  44         double opacity_;\r
  45         double gain_;\r
  46         std::array<double, 2> pos_;\r
  47         std::array<double, 2> size_;\r
  48         std::array<double, 4> uv_;\r
  49         video_mode::type mode_;\r
  50 };\r
  51 \r
  52 class image_mixer : boost::noncopyable\r
  53 {\r
  54 public:\r
  55         image_mixer(const video_format_desc& format_desc);\r
  56 \r
  57         void begin(const image_transform& transform);\r
  58         void process(const pixel_format_desc& desc, std::vector<safe_ptr<host_buffer>>& buffers);\r
  59         void end();\r
  60 \r
  61         boost::unique_future<safe_ptr<const host_buffer>> begin_pass();\r
  62         void end_pass();\r
  63 \r
  64         std::vector<safe_ptr<host_buffer>> create_buffers(const pixel_format_desc& format);\r
  65 \r
  66 private:\r
  67         struct implementation;\r
  68         std::shared_ptr<implementation> impl_;\r
  69 };\r
  70 \r
  71 }}