136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#if SDL_THREAD_PS2
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/* PS2 thread management routines for SDL */
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#include <stdio.h>
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#include <stdlib.h>
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#include "../SDL_systhread.h"
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#include "../SDL_thread_c.h"
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#include <kernel.h>
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static void FinishThread(SDL_Thread *thread)
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{
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ee_thread_status_t info;
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int res;
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res = ReferThreadStatus(thread->handle, &info);
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TerminateThread(thread->handle);
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DeleteThread(thread->handle);
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DeleteSema((int)thread->endfunc);
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if (res > 0) {
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SDL_free(info.stack);
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}
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}
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static int childThread(void *arg)
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{
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SDL_Thread *thread = (SDL_Thread *)arg;
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int res = thread->userfunc(thread->userdata);
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SignalSema((int)thread->endfunc);
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return res;
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}
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int SDL_SYS_CreateThread(SDL_Thread *thread)
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{
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ee_thread_status_t status;
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ee_thread_t eethread;
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ee_sema_t sema;
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size_t stack_size;
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int priority = 32;
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/* Set priority of new thread to the same as the current thread */
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// status.size = sizeof(ee_thread_t);
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if (ReferThreadStatus(GetThreadId(), &status) == 0) {
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priority = status.current_priority;
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}
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stack_size = thread->stacksize ? ((int)thread->stacksize) : 0x1800;
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/* Create EE Thread */
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eethread.attr = 0;
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eethread.option = 0;
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eethread.func = &childThread;
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eethread.stack = SDL_malloc(stack_size);
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eethread.stack_size = stack_size;
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eethread.gp_reg = &_gp;
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eethread.initial_priority = priority;
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thread->handle = CreateThread(&eethread);
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if (thread->handle < 0) {
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return SDL_SetError("CreateThread() failed");
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}
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// Prepare el semaphore for the ending function
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sema.init_count = 0;
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sema.max_count = 1;
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sema.option = 0;
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thread->endfunc = (void *)CreateSema(&sema);
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return StartThread(thread->handle, thread);
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}
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void SDL_SYS_SetupThread(const char *name)
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{
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/* Do nothing. */
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}
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SDL_threadID SDL_ThreadID(void)
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{
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return (SDL_threadID)GetThreadId();
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}
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void SDL_SYS_WaitThread(SDL_Thread *thread)
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{
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WaitSema((int)thread->endfunc);
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ReleaseWaitThread(thread->handle);
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FinishThread(thread);
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}
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void SDL_SYS_DetachThread(SDL_Thread *thread)
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{
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/* Do nothing. */
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}
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int SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
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{
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int value;
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if (priority == SDL_THREAD_PRIORITY_LOW) {
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value = 111;
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} else if (priority == SDL_THREAD_PRIORITY_HIGH) {
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value = 32;
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} else if (priority == SDL_THREAD_PRIORITY_TIME_CRITICAL) {
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value = 16;
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} else {
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value = 50;
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}
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return ChangeThreadPriority(GetThreadId(), value);
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}
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#endif /* SDL_THREAD_PS2 */
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