src/psp/port.h

   1 /*******************************************************************************
   2  * Reverse Polish Notation calculator.                                         *
   3  * Copyright (c) 2007-2008, Samuel Fredrickson <kinghajj@gmail.com>            *
   4  * All rights reserved.                                                        *
   5  *                                                                             *
   6  * Redistribution and use in source and binary forms, with or without          *
   7  * modification, are permitted provided that the following conditions are met: *
   8  *     * Redistributions of source code must retain the above copyright        *
   9  *       notice, this list of conditions and the following disclaimer.         *
  10  *     * Redistributions in binary form must reproduce the above copyright     *
  11  *       notice, this list of conditions and the following disclaimer in the   *
  12  *       documentation and/or other materials provided with the distribution.  *
  13  *                                                                             *
  14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS *
  15  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED           *
  16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE      *
  17  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY        *
  18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES  *
  19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR          *
  20  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER  *
  21  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          *
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY   *
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
  24  * DAMAGE.                                                                     *
  25  ******************************************************************************/
  26
  27 /*******************************************************************************
  28  * port.h - specialized ports for the psp version.                             *
  29  ******************************************************************************/
  30
  31 #ifndef DOXYGEN_SKIP
  32 #ifndef _CONSOLE_PORT_H_
  33 #define _CONSOLE_PORT_H_
  34
  35 extern "C" {
  36 #include <pspctrl.h>
  37 #include <pspdebug.h>
  38 #include <pspdisplay.h>
  39 #include <pspkernel.h>
  40 }
  41
  42 #include <cstdarg>
  43 #include <cstdio>
  44 #include <map>
  45 #include <string>
  46
  47 namespace RPN
  48 {
  49     class Port
  50     {
  51         //! Holds information on how a certain button press on the PSP maps to
  52         //! characters. The alternate form is accessed by pressing the
  53         //! right trigger.
  54         struct CharPair
  55         {
  56             char chr, alt_chr;
  57
  58             CharPair(char chr = '\0', char alt_chr = '\0')
  59                 : chr(chr), alt_chr(alt_chr) {}
  60         };
  61
  62         // Executed on exit; used for cleanup.
  63         static int ExitCallback(int arg1, int arg2, void *common);
  64         // Thread to create and register callbacks.
  65         static int CallbackThread(SceSize args, void *argp);
  66         // Starts thread to create callbacks.
  67         static int SetupCallbacks();
  68
  69         //! Gets button pushes.
  70         /**
  71          * This reports multiple button pushes, so this does not return until
  72          * all buttons have been released.
  73          *
  74          * @return An integer with button press flags.
  75          */
  76         static int GetButtonPushes();
  77
  78         // Returns a key that matches the given buttons.
  79         // Simple but fast on a small map.
  80         static CharPair* FindPair(int buttons);
  81
  82         // 64 characters is a reasonable limit for the buffer.
  83         const static size_t buf_size = 64;
  84         // To press "enter", press the triggers simultaneously.
  85         static int enter;
  86         // To cancel input, press the left trigger.
  87         static int cancel;
  88         // To switch to alternate characters, press the right trigger.
  89         static int alternate;
  90         // Don't start in alternate mode.
  91         static bool alternateMode;
  92         // Holds a map of button presses to characters.
  93         static std::map<int, CharPair> keyMap;
  94
  95         //! Get one character; map special characters so they can be handled
  96         //! later.
  97         /**
  98          * @return The typed character or 0 if invalid.
  99          */
 100         static char GetCharacter();
 101
 102         static char output_buffer[1024];
 103
 104     public:
 105
 106         static bool CanRun()
 107         {
 108             return true;
 109         }
 110
 111         static std::string GetLine();
 112
 113         static void Post()
 114         {
 115             sceKernelExitGame();
 116         }
 117
 118         static void Print(const char* str, ...)
 119         {
 120             va_list args;
 121
 122             va_start(args, str);
 123             vsprintf(output_buffer, str, args);
 124             pspDebugScreenPrintf(output_buffer);
 125             va_end(args);
 126             //pspDebugScreenPrintf(str);
 127         }
 128
 129         static void Setup();
 130     };
 131 }
 132
 133 #endif
 134 #endif