SDL_systhread.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:4k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_systhread.c,v 1.4 2002/04/22 21:38:02 wmay Exp $";
- #endif
- /* BeOS thread management routines for SDL */
- #include "SDL_error.h"
- #include "SDL_mutex.h"
- #include "SDL_thread.h"
- #include "SDL_thread_c.h"
- #include "SDL_systhread.h"
- #include "mydebug.h"
- typedef struct {
- int (*func)(void *);
- void *data;
- SDL_Thread *info;
- struct Task *wait;
- } thread_args;
- #ifndef MORPHOS
- #if defined(__SASC) && !defined(__PPC__)
- __saveds __asm Uint32 RunThread(register __a0 char *args )
- #elif defined(__PPC__)
- Uint32 RunThread(char *args)
- #else
- Uint32 __saveds RunThread(char *args __asm("a0") )
- #endif
- {
- #ifdef STORMC4_WOS
- thread_args *data=(thread_args *)args;
- #else
- thread_args *data=(thread_args *)atol(args);
- #endif
- struct Task *Father;
- D(bug("Received data: %lxn",data));
- Father=data->wait;
- SDL_RunThread(data);
- Signal(Father,SIGBREAKF_CTRL_F);
- D(bug("Thread with data %lx endedn",data));
- return(0);
- }
- #else
- #include <emul/emulinterface.h>
- Uint32 RunTheThread(void)
- {
- thread_args *data=(thread_args *)atol((char *)REG_A0);
- struct Task *Father;
- D(bug("Received data: %lxn",data));
- Father=data->wait;
- SDL_RunThread(data);
- Signal(Father,SIGBREAKF_CTRL_F);
- D(bug("Thread with data %lx endedn",data));
- return(0);
- }
- struct EmulLibEntry RunThreadStruct=
- {
- TRAP_LIB,
- 0,
- (ULONG)RunTheThread
- };
- void *RunThread=&RunThreadStruct;
- #endif
- int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
- {
- /* Create the thread and go! */
- char buffer[20];
- D(bug("Sending %lx to the new thread...n",args));
- if(args)
- sprintf(buffer,"%ld",args);
- #ifdef STORMC4_WOS
- thread->handle=CreateTaskPPCTags(TASKATTR_CODE, RunThread,
- TASKATTR_NAME, "SDL subtask",
- TASKATTR_STACKSIZE, 100000,
- (args ? TASKATTR_R3 : TAG_IGNORE), args,
- TASKATTR_INHERITR2, TRUE,
- TAG_DONE);
- #else
- thread->handle=(struct Task *)CreateNewProcTags(NP_Output,Output(),
- NP_Name,(ULONG)"SDL subtask",
- NP_CloseOutput, FALSE,
- NP_StackSize,20000,
- NP_Entry,(ULONG)RunThread,
- args ? NP_Arguments : TAG_IGNORE,(ULONG)buffer,
- TAG_DONE);
- #endif
- if(!thread->handle)
- {
- SDL_SetError("Not enough resources to create thread");
- return(-1);
- }
- return(0);
- }
- void SDL_SYS_SetupThread(void)
- {
- }
- Uint32 SDL_ThreadID(void)
- {
- return((Uint32)FindTask(NULL));
- }
- void SDL_SYS_WaitThread(SDL_Thread *thread)
- {
- SetSignal(0L,SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
- Wait(SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
- }
- void SDL_SYS_KillThread(SDL_Thread *thread)
- {
- Signal((struct Task *)thread->handle,SIGBREAKF_CTRL_C);
- }