view src/video/win32/SDL_win32keyboard.c @ 3100:7dc982143c06

Date: Sun, 22 Mar 2009 12:52:29 +0000 From: Luke Benstead Subject: OpenGL 3.0 Context Creation I've attached a patch which implements OpenGL 3.x context creation on the latest SVN. I've added two options to SDL_GL_SetAttribute, these are SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION. These default to 2 and 1 respectively. If the major version is less than 3 then the current context creation method is used, otherwise the appropriate new context creation function is called (depending on the platform). Sample code: if (SDL_Init(SDL_INIT_VIDEO) != 0) { printf("Unable to initialize SDL: %s\n", SDL_GetError()); return 1; } SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); //Without these 2 lines, SDL will create a GL 2.x context SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0); SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); SDL_Surface* screen = SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL | SDL_FULLSCREEN ); I've implemented context creation on both Win32 and X and run basic tests on both. This patch doesn't provide access to all the options allowed by the new context creation (e.g. shared contexts, forward compatible contexts) but they can be added pretty easily.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Mar 2009 10:43:53 +0000
parents 99210400e8b9
children f7b03b6838cb
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "SDL_win32video.h"

#include "../../events/SDL_keyboard_c.h"
#include "../../events/scancodes_win32.h"

#ifndef MAPVK_VK_TO_VSC
#define MAPVK_VK_TO_VSC     0
#endif
#ifndef MAPVK_VSC_TO_VK
#define MAPVK_VSC_TO_VK     1
#endif
#ifndef MAPVK_VK_TO_CHAR
#define MAPVK_VK_TO_CHAR    2
#endif

/* Alphabetic scancodes for PC keyboards */
BYTE alpha_scancodes[26] = {
    30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, 50, 49, 24,
    25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44
};

BYTE keypad_scancodes[10] = {
    82, 79, 80, 81, 75, 76, 77, 71, 72, 73
};

void
WIN_InitKeyboard(_THIS)
{
    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
    SDL_Keyboard keyboard;
    int i;

    /* Make sure the alpha scancodes are correct.  T isn't usually remapped */
    if (MapVirtualKey('T', MAPVK_VK_TO_VSC) != alpha_scancodes['T' - 'A']) {
#if 0
        printf
            ("Fixing alpha scancode map, assuming US QWERTY layout!\nPlease send the following 26 lines of output to the SDL mailing list <sdl@libsdl.org>, including a description of your keyboard hardware.\n");
#endif
        for (i = 0; i < SDL_arraysize(alpha_scancodes); ++i) {
            alpha_scancodes[i] = MapVirtualKey('A' + i, MAPVK_VK_TO_VSC);
#if 0
            printf("%d = %d\n", i, alpha_scancodes[i]);
#endif
        }
    }
    if (MapVirtualKey(VK_NUMPAD0, MAPVK_VK_TO_VSC) != keypad_scancodes[0]) {
#if 0
        printf
            ("Fixing keypad scancode map!\nPlease send the following 10 lines of output to the SDL mailing list <sdl@libsdl.org>, including a description of your keyboard hardware.\n");
#endif
        for (i = 0; i < SDL_arraysize(keypad_scancodes); ++i) {
            keypad_scancodes[i] =
                MapVirtualKey(VK_NUMPAD0 + i, MAPVK_VK_TO_VSC);
#if 0
            printf("%d = %d\n", i, keypad_scancodes[i]);
#endif
        }
    }

    data->key_layout = win32_scancode_table;

    SDL_zero(keyboard);
    data->keyboard = SDL_AddKeyboard(&keyboard, -1);
    WIN_UpdateKeymap(data->keyboard);

    SDL_SetScancodeName(SDL_SCANCODE_APPLICATION, "Menu");
    SDL_SetScancodeName(SDL_SCANCODE_LGUI, "Left Windows");
    SDL_SetScancodeName(SDL_SCANCODE_RGUI, "Right Windows");
}

void
WIN_UpdateKeymap(int keyboard)
{
    int i;
    SDL_scancode scancode;
    SDLKey keymap[SDL_NUM_SCANCODES];

    SDL_GetDefaultKeymap(keymap);

    for (i = 0; i < SDL_arraysize(win32_scancode_table); i++) {

        /* Make sure this scancode is a valid character scancode */
        scancode = win32_scancode_table[i];
        if (scancode == SDL_SCANCODE_UNKNOWN ||
            (keymap[scancode] & SDLK_SCANCODE_MASK)) {
            continue;
        }

        /* Alphabetic keys are handled specially, since Windows remaps them */
        if (i >= 'A' && i <= 'Z') {
            BYTE vsc = alpha_scancodes[i - 'A'];
            keymap[scancode] = MapVirtualKey(vsc, MAPVK_VSC_TO_VK) + 0x20;
        } else {
            keymap[scancode] = (MapVirtualKey(i, MAPVK_VK_TO_CHAR) & 0x7FFF);
        }
    }
    SDL_SetKeymap(keyboard, 0, keymap, SDL_NUM_SCANCODES);
}

void
WIN_QuitKeyboard(_THIS)
{
    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

    SDL_DelKeyboard(data->keyboard);
}

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