Mercurial > sdl-ios-xcode
view test/testloadso.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> |
---|---|
date | Wed, 02 Jul 2008 08:04:50 +0000 |
parents | 2c835d58faad |
children | 9de326b3099c |
line wrap: on
line source
/* Test program to test dynamic loading with the loadso subsystem. */ #include <stdio.h> #include <stdlib.h> #include "SDL.h" typedef int (*fntype) (const char *); int main(int argc, char *argv[]) { int retval = 0; int hello = 0; const char *libname = NULL; const char *symname = NULL; void *lib = NULL; fntype fn = NULL; if (argc != 3) { const char *app = argv[0]; fprintf(stderr, "USAGE: %s <library> <functionname>\n", app); fprintf(stderr, " %s --hello <lib with puts()>\n", app); return 1; } /* Initialize SDL */ if (SDL_Init(0) < 0) { fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); return 2; } if (strcmp(argv[1], "--hello") == 0) { hello = 1; libname = argv[2]; symname = "puts"; } else { libname = argv[1]; symname = argv[2]; } lib = SDL_LoadObject(libname); if (lib == NULL) { fprintf(stderr, "SDL_LoadObject('%s') failed: %s\n", libname, SDL_GetError()); retval = 3; } else { fn = (fntype) SDL_LoadFunction(lib, symname); if (fn == NULL) { fprintf(stderr, "SDL_LoadFunction('%s') failed: %s\n", symname, SDL_GetError()); retval = 4; } else { printf("Found %s in %s at %p\n", symname, libname, fn); if (hello) { printf("Calling function...\n"); fflush(stdout); fn(" HELLO, WORLD!\n"); printf("...apparently, we survived. :)\n"); printf("Unloading library...\n"); fflush(stdout); } } SDL_UnloadObject(lib); } SDL_Quit(); return (0); }