Mercurial > sdl-ios-xcode
view test/testhread.c @ 2661:d38309be5178 gsoc2008_audio_resampling
The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.
author | Aaron Wishnick <schnarf@gmail.com> |
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date | Wed, 02 Jul 2008 08:04:50 +0000 |
parents | c121d94672cb |
children | 4436464c4f51 |
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/* Simple test of the SDL threading code */ #include <stdio.h> #include <stdlib.h> #include <signal.h> #include "SDL.h" #include "SDL_thread.h" static int alive = 0; /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ static void quit(int rc) { SDL_Quit(); exit(rc); } int SDLCALL ThreadFunc(void *data) { printf("Started thread %s: My thread id is %u\n", (char *) data, SDL_ThreadID()); while (alive) { printf("Thread '%s' is alive!\n", (char *) data); SDL_Delay(1 * 1000); } printf("Thread '%s' exiting!\n", (char *) data); return (0); } static void killed(int sig) { printf("Killed with SIGTERM, waiting 5 seconds to exit\n"); SDL_Delay(5 * 1000); alive = 0; quit(0); } int main(int argc, char *argv[]) { SDL_Thread *thread; /* Load the SDL library */ if (SDL_Init(0) < 0) { fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); return (1); } alive = 1; thread = SDL_CreateThread(ThreadFunc, "#1"); if (thread == NULL) { fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError()); quit(1); } SDL_Delay(5 * 1000); printf("Waiting for thread #1\n"); alive = 0; SDL_WaitThread(thread, NULL); alive = 1; thread = SDL_CreateThread(ThreadFunc, "#2"); if (thread == NULL) { fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError()); quit(1); } SDL_Delay(5 * 1000); printf("Killing thread #2\n"); SDL_KillThread(thread); alive = 1; signal(SIGTERM, killed); thread = SDL_CreateThread(ThreadFunc, "#3"); if (thread == NULL) { fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError()); quit(1); } raise(SIGTERM); SDL_Quit(); /* Never reached */ return (0); /* Never reached */ }