include/core/framebuffer.hpp

   1 #ifndef _framebuffer__hpp__included__
   2 #define _framebuffer__hpp__included__
   3
   4 #include "core/window.hpp"
   5 #include "library/command.hpp"
   6 #include "library/framebuffer.hpp"
   7 #include "library/triplebuffer.hpp"
   8
   9 #include <stdexcept>
  10
  11 class subtitle_commentary;
  12 class memwatch_set;
  13 class emulator_dispatch;
  14 class lua_state;
  15 class loaded_rom;
  16 class status_updater;
  17 namespace settingvar
  18 {
  19         class group;
  20 }
  21 namespace keyboard
  22 {
  23         class keyboard;
  24 }
  25
  26 /**
  27  * Emulator frame buffer.
  28  */
  29 class emu_framebuffer
  30 {
  31 public:
  32         emu_framebuffer(subtitle_commentary& _subtitles, settingvar::group& _settings, memwatch_set& _mwatch,
  33                 keyboard::keyboard& _keyboard, emulator_dispatch& _dispatch, lua_state& _lua2, loaded_rom& _rom,
  34                 status_updater& _supdater, command::group& _cmd);
  35 /**
  36  * The main framebuffer.
  37  */
  38         framebuffer::raw main_framebuffer;
  39 /**
  40  * Special screen: "SYSTEM STATE CORRUPT".
  41  */
  42         static framebuffer::raw screen_corrupt;
  43 /**
  44  * The main screen to draw on.
  45  */
  46         framebuffer::fb<false> main_screen;
  47 /**
  48  * Initialize special screens.
  49  *
  50  * throws std::bad_alloc: Not enough memory.
  51  */
  52         static void init_special_screens() throw(std::bad_alloc);
  53 /**
  54  * Copy framebuffer to backing store, running Lua hooks if any.
  55  */
  56         void redraw_framebuffer(framebuffer::raw& torender, bool no_lua = false, bool spontaneous = false);
  57 /**
  58  * Redraw the framebuffer, reusing contents from last redraw. Runs lua hooks if last redraw ran them.
  59  */
  60         void redraw_framebuffer();
  61 /**
  62  * Return last complete framebuffer.
  63  */
  64         framebuffer::raw get_framebuffer() throw(std::bad_alloc);
  65 /**
  66  * Render framebuffer to main screen.
  67  */
  68         void render_framebuffer();
  69 /**
  70  * Get the size of current framebuffer.
  71  */
  72         std::pair<uint32_t, uint32_t> get_framebuffer_size();
  73 /**
  74  * Take a screenshot to specified file.
  75  */
  76         void take_screenshot(const std::string& file) throw(std::bad_alloc, std::runtime_error);
  77 /**
  78  * Kill pending requests associated with object.
  79  */
  80         void render_kill_request(void* obj);
  81 /**
  82  * Get latest screen received from core.
  83  */
  84         framebuffer::raw& render_get_latest_screen();
  85         void render_get_latest_screen_end();
  86 private:
  87         void do_screenshot(command::arg_filename a);
  88         struct render_info
  89         {
  90                 render_info();
  91                 framebuffer::raw fbuf;
  92                 framebuffer::queue rq;
  93                 uint32_t hscl;
  94                 uint32_t vscl;
  95                 uint32_t lgap;
  96                 uint32_t rgap;
  97                 uint32_t tgap;
  98                 uint32_t bgap;
  99         };
 100         render_info buffer1;
 101         render_info buffer2;
 102         render_info buffer3;
 103         triplebuffer::triplebuffer<render_info> buffering;
 104         bool last_redraw_no_lua;
 105         subtitle_commentary& subtitles;
 106         settingvar::group& settings;
 107         memwatch_set& mwatch;
 108         keyboard::keyboard& keyboard;
 109         emulator_dispatch& edispatch;
 110         lua_state& lua2;
 111         loaded_rom& rom;
 112         status_updater& supdater;
 113         command::group& cmd;
 114         command::_fnptr<command::arg_filename> screenshot;
 115 };
 116
 117 #endif