Remove unused thunk_sdl.c file
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reinoud
parent
a1d9faf5ca
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ec74fc0746
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/* $NetBSD: thunk_sdl.c,v 1.1 2011/08/25 11:45:26 jmcneill Exp $ */
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/*-
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* Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: thunk_sdl.c,v 1.1 2011/08/25 11:45:26 jmcneill Exp $");
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#include <sys/types.h>
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#include <sys/signal.h>
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#include <sys/reboot.h>
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#include <sys/shm.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <SDL.h>
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#include "../include/thunk.h"
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extern const char ostype[];
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extern const char osrelease[];
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extern const char kernel_ident[];
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#define THUNK_SDL_REDRAW_INTERVAL 100 /* 10 Hz */
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#define THUNK_SDL_EV_REDRAW 1
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static int thunk_sdl_running = 0; /* SDL event loop run status */
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static void *thunk_sdl_fbaddr = NULL; /* framebuffer va */
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static int thunk_sdl_shmid;
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/* Framebuffer parameters */
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static unsigned int thunk_sdl_width;
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static unsigned int thunk_sdl_height;
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static unsigned short thunk_sdl_depth;
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/*
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* Create an SDL surface from the framebuffer memory, then blit
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* it to the screen.
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*/
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static void
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thunk_sdl_redraw(SDL_Surface *screen)
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{
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SDL_Surface *wsfb;
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Uint32 rmask, gmask, bmask, amask;
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if (thunk_sdl_fbaddr == NULL)
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return;
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rmask = 0x000000ff;
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gmask = 0x0000ff00;
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bmask = 0x00ff0000;
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amask = 0x00000000;
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wsfb = SDL_CreateRGBSurfaceFrom(thunk_sdl_fbaddr,
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thunk_sdl_width, thunk_sdl_height, thunk_sdl_depth,
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thunk_sdl_width * (thunk_sdl_depth / 8),
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rmask, gmask, bmask, amask);
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if (wsfb == NULL)
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abort();
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if (SDL_BlitSurface(wsfb, NULL, screen, NULL) == -1)
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abort();
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SDL_Flip(screen);
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SDL_FreeSurface(wsfb);
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}
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/*
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* Timer callback used to inject a redraw event into the SDL event loop
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*/
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static Uint32
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thunk_sdl_tick(Uint32 interval, void *param)
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{
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SDL_Event ev;
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if (!thunk_sdl_running)
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return 0;
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ev.type = SDL_USEREVENT;
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ev.user.code = THUNK_SDL_EV_REDRAW;
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ev.user.data1 = ev.user.data2 = NULL;
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SDL_PushEvent(&ev);
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return interval;
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}
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/*
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* SDL event loop
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*/
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static int
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thunk_sdl_eventloop(void *priv)
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{
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SDL_Surface *screen;
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char caption[81];
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//int stdin_fd;
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SDL_Event ev;
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key_t k;
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thunk_sdl_running = 1;
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k = ftok("/dev/null", 1);
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if (k == (key_t)-1)
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return errno;
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thunk_sdl_shmid = shmget(k,
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thunk_sdl_width * thunk_sdl_height * (thunk_sdl_depth / 8), 0600);
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thunk_sdl_fbaddr = shmat(thunk_sdl_shmid, NULL, 0);
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if (thunk_sdl_fbaddr == NULL)
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abort();
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/* SDL_Init closes stdin, so we need to restore it after it returns */
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//stdin_fd = dup(0);
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if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER) < 0)
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abort();
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atexit(SDL_Quit);
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//close(0);
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//dup2(stdin_fd, 0);
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/* Clear SDL signal handler so ^C will work */
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//signal(SIGINT, SIG_DFL);
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/* Configure key repeat */
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SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_DELAY);
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/* Set the window title */
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memset(caption, 0, sizeof(caption));
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snprintf(caption, sizeof(caption), "%s %s (%s)",
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ostype, osrelease, kernel_ident);
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SDL_WM_SetCaption(caption, NULL);
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/* Try to configure the requested video mode */
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screen = SDL_SetVideoMode(thunk_sdl_width, thunk_sdl_height,
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thunk_sdl_depth, 0);
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if (screen == NULL)
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abort();
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/* Hide the mouse cursor */
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SDL_ShowCursor(SDL_DISABLE);
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SDL_AddTimer(THUNK_SDL_REDRAW_INTERVAL, thunk_sdl_tick, NULL);
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while (thunk_sdl_running) {
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if (!SDL_WaitEvent(&ev))
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abort();
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printf("ev.type = %d\n", ev.type);
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switch (ev.type) {
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case SDL_QUIT:
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thunk_sdl_running = 0;
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break;
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case SDL_KEYDOWN:
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printf("key %X scancode %X\n", ev.key.keysym.sym,
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ev.key.keysym.scancode);
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break;
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case SDL_USEREVENT:
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switch (ev.user.code) {
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case THUNK_SDL_EV_REDRAW:
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thunk_sdl_redraw(screen);
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break;
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}
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}
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thunk_sdl_redraw(screen);
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}
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printf("shutting down...\n");
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abort();
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return 0;
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}
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int
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thunk_sdl_init(unsigned int width, unsigned int height, unsigned short depth)
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{
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static int thunk_sdl_inited = 0;
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static int thunk_sdl_init_status = -1;
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if (thunk_sdl_inited)
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goto done;
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thunk_sdl_inited = 1;
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/* Save a copy of the video mode parameters for later */
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thunk_sdl_width = width;
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thunk_sdl_height = height;
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thunk_sdl_depth = depth;
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/* run event loop */
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switch (fork()) {
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case 0:
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thunk_sdl_eventloop(NULL);
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break;
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case -1:
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abort();
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default:
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break;
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}
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thunk_sdl_init_status = 0;
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done:
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return thunk_sdl_init_status;
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}
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/*
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* Get the framebuffer virtual address
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*/
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void *
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thunk_sdl_getfb(size_t fbsize)
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{
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key_t k;
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k = ftok("/dev/null", 1);
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if (k == (key_t)-1)
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return NULL;
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thunk_sdl_shmid = shmget(k, fbsize, IPC_CREAT | 0600);
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return shmat(thunk_sdl_shmid, NULL, 0);
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}
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