| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #if SDL_THREAD_VITA |
| |
| /* VITA thread management routines for SDL */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "SDL_error.h" |
| #include "SDL_thread.h" |
| #include "../SDL_systhread.h" |
| #include "../SDL_thread_c.h" |
| #include <psp2/types.h> |
| #include <psp2/kernel/threadmgr.h> |
| |
| #define VITA_THREAD_STACK_SIZE_MIN 0x1000 // 4KiB |
| #define VITA_THREAD_STACK_SIZE_MAX 0x2000000 // 32MiB |
| #define VITA_THREAD_STACK_SIZE_DEFAULT 0x10000 // 64KiB |
| #define VITA_THREAD_NAME_MAX 32 |
| |
| #define VITA_THREAD_PRIORITY_LOW 191 |
| #define VITA_THREAD_PRIORITY_NORMAL 160 |
| #define VITA_THREAD_PRIORITY_HIGH 112 |
| #define VITA_THREAD_PRIORITY_TIME_CRITICAL 64 |
| |
| static int ThreadEntry(SceSize args, void *argp) |
| { |
| SDL_RunThread(*(SDL_Thread **) argp); |
| return 0; |
| } |
| |
| int SDL_SYS_CreateThread(SDL_Thread *thread) |
| { |
| char thread_name[VITA_THREAD_NAME_MAX]; |
| size_t stack_size = VITA_THREAD_STACK_SIZE_DEFAULT; |
| |
| SDL_strlcpy(thread_name, "SDL thread", VITA_THREAD_NAME_MAX); |
| if (thread->name) { |
| SDL_strlcpy(thread_name, thread->name, VITA_THREAD_NAME_MAX); |
| } |
| |
| if (thread->stacksize) { |
| if (thread->stacksize < VITA_THREAD_STACK_SIZE_MIN) { |
| thread->stacksize = VITA_THREAD_STACK_SIZE_MIN; |
| } |
| if (thread->stacksize > VITA_THREAD_STACK_SIZE_MAX) { |
| thread->stacksize = VITA_THREAD_STACK_SIZE_MAX; |
| } |
| stack_size = thread->stacksize; |
| } |
| |
| /* Create new thread with the same priority as the current thread */ |
| thread->handle = sceKernelCreateThread( |
| thread_name, // name |
| ThreadEntry, // function to run |
| 0, // priority. 0 means priority of calling thread |
| stack_size, // stack size |
| 0, // attibutes. always 0 |
| 0, // cpu affinity mask. 0 = all CPUs |
| NULL // opt. always NULL |
| ); |
| |
| if (thread->handle < 0) { |
| return SDL_SetError("sceKernelCreateThread() failed"); |
| } |
| |
| sceKernelStartThread(thread->handle, 4, &thread); |
| return 0; |
| } |
| |
| void SDL_SYS_SetupThread(const char *name) |
| { |
| /* Do nothing. */ |
| } |
| |
| SDL_threadID SDL_ThreadID(void) |
| { |
| return (SDL_threadID) sceKernelGetThreadId(); |
| } |
| |
| void SDL_SYS_WaitThread(SDL_Thread *thread) |
| { |
| sceKernelWaitThreadEnd(thread->handle, NULL, NULL); |
| sceKernelDeleteThread(thread->handle); |
| } |
| |
| void SDL_SYS_DetachThread(SDL_Thread *thread) |
| { |
| /* Do nothing. */ |
| } |
| |
| int SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority) |
| { |
| int value = VITA_THREAD_PRIORITY_NORMAL; |
| |
| switch(priority) { |
| case SDL_THREAD_PRIORITY_LOW: |
| value = VITA_THREAD_PRIORITY_LOW; |
| break; |
| case SDL_THREAD_PRIORITY_NORMAL: |
| value = VITA_THREAD_PRIORITY_NORMAL; |
| break; |
| case SDL_THREAD_PRIORITY_HIGH: |
| value = VITA_THREAD_PRIORITY_HIGH; |
| break; |
| case SDL_THREAD_PRIORITY_TIME_CRITICAL: |
| value = VITA_THREAD_PRIORITY_TIME_CRITICAL; |
| break; |
| } |
| |
| return sceKernelChangeThreadPriority(0, value); |
| |
| } |
| |
| #endif /* SDL_THREAD_VITA */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |