Mercurial > sdl-ios-xcode
view src/video/aalib/SDL_aaevents.c @ 1554:0ca607a5d173
Fixed bug #84
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 19 Mar 2006 12:04:40 +0000 |
parents | bf8db2d92be1 |
children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 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" /* Handle the event stream, converting AA events into SDL events */ #include <stdio.h> #include <aalib.h> #include "SDL.h" #include "../../events/SDL_sysevents.h" #include "../../events/SDL_events_c.h" #include "SDL_aavideo.h" #include "SDL_aaevents_c.h" /* The translation tables from a console scancode to a SDL keysym */ static SDLKey keymap[401]; static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym); void AA_PumpEvents(_THIS) { int posted = 0; int mouse_button, mouse_x, mouse_y; int evt; SDL_keysym keysym; static int prev_button = -1, prev_x = -1, prev_y = -1; if( ! this->screen ) /* Wait till we got the screen initialized */ return; do { posted = 0; /* Gather events */ /* Get mouse status */ SDL_mutexP(AA_mutex); aa_getmouse (AA_context, &mouse_x, &mouse_y, &mouse_button); SDL_mutexV(AA_mutex); mouse_x = mouse_x * this->screen->w / aa_scrwidth (AA_context); mouse_y = mouse_y * this->screen->h / aa_scrheight (AA_context); /* Compare against previous state and generate events */ if( prev_button != mouse_button ) { if( mouse_button & AA_BUTTON1 ) { if ( ! (prev_button & AA_BUTTON1) ) { posted += SDL_PrivateMouseButton(SDL_PRESSED, 1, 0, 0); } } else { if ( prev_button & AA_BUTTON1 ) { posted += SDL_PrivateMouseButton(SDL_RELEASED, 1, 0, 0); } } if( mouse_button & AA_BUTTON2 ) { if ( ! (prev_button & AA_BUTTON2) ) { posted += SDL_PrivateMouseButton(SDL_PRESSED, 2, 0, 0); } } else { if ( prev_button & AA_BUTTON2 ) { posted += SDL_PrivateMouseButton(SDL_RELEASED, 2, 0, 0); } } if( mouse_button & AA_BUTTON3 ) { if ( ! (prev_button & AA_BUTTON3) ) { posted += SDL_PrivateMouseButton(SDL_PRESSED, 3, 0, 0); } } else { if ( prev_button & AA_BUTTON3 ) { posted += SDL_PrivateMouseButton(SDL_RELEASED, 3, 0, 0); } } } if ( prev_x != mouse_x || prev_y != mouse_y ) { posted += SDL_PrivateMouseMotion(0, 0, mouse_x, mouse_y); } prev_button = mouse_button; prev_x = mouse_x; prev_y = mouse_y; /* Get keyboard event */ SDL_mutexP(AA_mutex); evt = aa_getevent(AA_context, 0); SDL_mutexV(AA_mutex); if ( (evt > AA_NONE) && (evt < AA_RELEASE) && (evt != AA_MOUSE) && (evt != AA_RESIZE) ) { /* Key pressed */ /* printf("Key pressed: %d (%c)\n", evt, evt); */ posted += SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(evt, &keysym)); } else if ( evt >= AA_RELEASE ) { /* Key released */ evt &= ~AA_RELEASE; /* printf("Key released: %d (%c)\n", evt, evt); */ posted += SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(evt, &keysym)); } } while ( posted ); } void AA_InitOSKeymap(_THIS) { int i; static const char *std_keys = " 01234567890&#'()_-|$*+-=/\\:;.,!?<>{}[]@~%^\x9"; const char *std; /* Initialize the AAlib key translation table */ for ( i=0; i<SDL_arraysize(keymap); ++i ) keymap[i] = SDLK_UNKNOWN; /* Alphabet keys */ for ( i = 0; i<26; ++i ){ keymap['a' + i] = SDLK_a+i; keymap['A' + i] = SDLK_a+i; } /* Function keys */ for ( i = 0; i<12; ++i ){ keymap[334 + i] = SDLK_F1+i; } /* Keys that have the same symbols and don't have to be translated */ for( std = std_keys; *std; std ++ ) { keymap[*std] = *std; } keymap[13] = SDLK_RETURN; keymap[AA_BACKSPACE] = SDLK_BACKSPACE; keymap[369] = SDLK_LSHIFT; keymap[370] = SDLK_RSHIFT; keymap[371] = SDLK_LCTRL; keymap[372] = SDLK_RCTRL; keymap[377] = SDLK_LALT; keymap[270] = SDLK_RALT; keymap[271] = SDLK_NUMLOCK; keymap[373] = SDLK_CAPSLOCK; keymap[164] = SDLK_SCROLLOCK; keymap[243] = SDLK_INSERT; keymap[304] = SDLK_DELETE; keymap[224] = SDLK_HOME; keymap[231] = SDLK_END; keymap[229] = SDLK_PAGEUP; keymap[230] = SDLK_PAGEDOWN; keymap[241] = SDLK_PRINT; keymap[163] = SDLK_BREAK; keymap[302] = SDLK_KP0; keymap[300] = SDLK_KP1; keymap[297] = SDLK_KP2; keymap[299] = SDLK_KP3; keymap[294] = SDLK_KP4; keymap[301] = SDLK_KP5; keymap[296] = SDLK_KP6; keymap[293] = SDLK_KP7; keymap[295] = SDLK_KP8; keymap[298] = SDLK_KP9; keymap[AA_ESC] = SDLK_ESCAPE; keymap[AA_UP] = SDLK_UP; keymap[AA_DOWN] = SDLK_DOWN; keymap[AA_LEFT] = SDLK_LEFT; keymap[AA_RIGHT] = SDLK_RIGHT; } static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym) { /* Sanity check */ if ( scancode >= SDL_arraysize(keymap) ) scancode = AA_UNKNOWN; /* Set the keysym information */ keysym->scancode = scancode; keysym->sym = keymap[scancode]; keysym->mod = KMOD_NONE; /* If UNICODE is on, get the UNICODE value for the key */ keysym->unicode = 0; if ( SDL_TranslateUNICODE ) { /* Populate the unicode field with the ASCII value */ keysym->unicode = scancode; } return(keysym); }