kc3-lang/SDL/src/events/SDL_scancode_tables.c

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• Hash : 99f2a503
  Author :
  Date : 2022-10-13T22:40:24
  

  X11 scancode mapping cleanup
  
  * Consolidated scancode mapping tables into a single location for all backends
  * Verified that the xfree86_scancode_table2 is largely identical to the Linux scancode table
  * Updated the Linux scancode table with the latest kernel keycodes (still unmapped)
  * Route X11 keysym -> scancode mapping through the linux scancode table (which a few hand-written exceptions), which will allow mappings to automatically get picked up as they are added in the Linux scancode table
  * Disabled verbose reporting of missing keysym mappings, we have enough data for now
  

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• src/events/SDL_scancode_tables.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  #include "../SDL_internal.h"
  
  #if SDL_INPUT_LINUXEV || SDL_VIDEO_DRIVER_DIRECTFB || SDL_VIDEO_DRIVER_WAYLAND || SDL_VIDEO_DRIVER_X11
  
  #include "SDL_scancode_tables_c.h"
  
  #include "scancodes_darwin.h"
  #include "scancodes_linux.h"
  #include "scancodes_xfree86.h"
  
  static const struct
  {
      SDL_ScancodeTable table;
      SDL_Scancode const *scancodes;
      int num_entries;
  } SDL_scancode_tables[] = {
      { SDL_SCANCODE_TABLE_DARWIN, darwin_scancode_table, SDL_arraysize(darwin_scancode_table) },
      { SDL_SCANCODE_TABLE_LINUX, linux_scancode_table, SDL_arraysize(linux_scancode_table) },
      { SDL_SCANCODE_TABLE_XFREE86_1, xfree86_scancode_table, SDL_arraysize(xfree86_scancode_table) },
      { SDL_SCANCODE_TABLE_XFREE86_2, xfree86_scancode_table2, SDL_arraysize(xfree86_scancode_table2) },
      { SDL_SCANCODE_TABLE_XVNC, xvnc_scancode_table, SDL_arraysize(xvnc_scancode_table) },
  };
  
  const SDL_Scancode *SDL_GetScancodeTable(SDL_ScancodeTable table, int *num_entries)
  {
      int i;
  
      for (i = 0; i < SDL_arraysize(SDL_scancode_tables); ++i) {
          if (table == SDL_scancode_tables[i].table) {
              *num_entries = SDL_scancode_tables[i].num_entries;
              return SDL_scancode_tables[i].scancodes;
          }
      }
  
      *num_entries = 0;
      return NULL;
  }
  
  SDL_Scancode SDL_GetScancodeFromTable(SDL_ScancodeTable table, int keycode)
  {
      SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN;
      int num_entries;
      const SDL_Scancode *scancodes = SDL_GetScancodeTable(table, &num_entries);
  
      if (keycode >= 0 && keycode < num_entries) {
          scancode = scancodes[keycode];
      }
      return scancode;
  }
  
  #endif /* SDL_INPUT_LINUXEV || SDL_VIDEO_DRIVER_DIRECTFB || SDL_VIDEO_DRIVER_WAYLAND || SDL_VIDEO_DRIVER_X11 */
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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