void* hw_open(const char* name) {
void* handle = dlopen(name, RTLD_LAZY);
// fprintf(stderr, "HW_OPEN: LOADING %s -> HANDLE %p\n", name, handle);
if (!handle) {
fprintf(stderr, "Cannot load library: %s\n", dlerror());
exit(-1);
}
dlerror();
open_t* open_hw = (open_t*)load_sym(handle, "open");
eval_t* eval_hw = (eval_t*)load_sym(handle, "eval");
close_t* close_hw = (close_t*)load_sym(handle, "close");
open_hw();
hw_t* hw = (hw_t*)malloc(sizeof(hw_t));
hw->open = open_hw;
hw->eval = eval_hw;
hw->close = close_hw;
// fprintf(stderr, "HW = %p\n", hw);
return hw;
}
static int
dln_init(const char *prog)
{
char *file, fbuf[MAXPATHLEN];
int fd;
struct exec hdr;
struct nlist *syms;
if (dln_init_p == 1) return 0;
file = dln_find_exe_r(prog, NULL, fbuf, sizeof(fbuf));
if (file == NULL || (fd = open(file, O_RDONLY)) < 0) {
dln_errno = errno;
return -1;
}
if (load_header(fd, &hdr, 0) == -1) return -1;
syms = load_sym(fd, &hdr, 0);
if (syms == NULL) {
close(fd);
return -1;
}
sym_tbl = sym_hash(&hdr, syms);
if (sym_tbl == NULL) { /* file may be start with #! */
char c = '\0';
char buf[MAXPATHLEN];
char *p;
free(syms);
lseek(fd, 0L, 0);
if (read(fd, &c, 1) == -1) {
dln_errno = errno;
return -1;
}
if (c != '#') goto err_noexec;
if (read(fd, &c, 1) == -1) {
dln_errno = errno;
return -1;
}
if (c != '!') goto err_noexec;
p = buf;
/* skip forwarding spaces */
while (read(fd, &c, 1) == 1) {
if (c == '\n') goto err_noexec;
if (c != '\t' && c != ' ') {
*p++ = c;
break;
}
}
/* read in command name */
while (read(fd, p, 1) == 1) {
if (*p == '\n' || *p == '\t' || *p == ' ') break;
p++;
if (p-buf >= MAXPATHLEN) {
dln_errno = ENAMETOOLONG;
return -1;
}
}
*p = '\0';
return dln_init(buf);
}
dln_init_p = 1;
undef_tbl = st_init_strtable();
close(fd);
return 0;
err_noexec:
close(fd);
dln_errno = DLN_ENOEXEC;
return -1;
}
static av_cold int frei0r_init(AVFilterContext *ctx,
const char *dl_name, int type)
{
Frei0rContext *frei0r = ctx->priv;
f0r_init_f f0r_init;
f0r_get_plugin_info_f f0r_get_plugin_info;
f0r_plugin_info_t *pi;
char *path;
/* see: http://piksel.org/frei0r/1.2/spec/1.2/spec/group__pluglocations.html */
if ((path = av_strdup(getenv("FREI0R_PATH")))) {
char *p, *ptr = NULL;
for (p = path; p = strtok_r(p, ":", &ptr); p = NULL)
if (frei0r->dl_handle = load_path(ctx, p, dl_name))
break;
av_free(path);
}
if (!frei0r->dl_handle && (path = getenv("HOME"))) {
char prefix[1024];
snprintf(prefix, sizeof(prefix), "%s/.frei0r-1/lib/", path);
frei0r->dl_handle = load_path(ctx, prefix, dl_name);
}
if (!frei0r->dl_handle)
frei0r->dl_handle = load_path(ctx, "/usr/local/lib/frei0r-1/", dl_name);
if (!frei0r->dl_handle)
frei0r->dl_handle = load_path(ctx, "/usr/lib/frei0r-1/", dl_name);
if (!frei0r->dl_handle) {
av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'\n", dl_name);
return AVERROR(EINVAL);
}
if (!(f0r_init = load_sym(ctx, "f0r_init" )) ||
!(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) ||
!(frei0r->get_param_info = load_sym(ctx, "f0r_get_param_info" )) ||
!(frei0r->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
!(frei0r->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
!(frei0r->update = load_sym(ctx, "f0r_update" )) ||
!(frei0r->construct = load_sym(ctx, "f0r_construct" )) ||
!(frei0r->destruct = load_sym(ctx, "f0r_destruct" )) ||
!(frei0r->deinit = load_sym(ctx, "f0r_deinit" )))
return AVERROR(EINVAL);
if (f0r_init() < 0) {
av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module");
return AVERROR(EINVAL);
}
f0r_get_plugin_info(&frei0r->plugin_info);
pi = &frei0r->plugin_info;
if (pi->plugin_type != type) {
av_log(ctx, AV_LOG_ERROR,
"Invalid type '%s' for the plugin\n",
pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
return AVERROR(EINVAL);
}
av_log(ctx, AV_LOG_INFO,
"name:%s author:'%s' explanation:'%s' color_model:%s "
"frei0r_version:%d version:%d.%d num_params:%d\n",
pi->name, pi->author, pi->explanation,
pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
return 0;
}
static av_cold int frei0r_init(AVFilterContext *ctx,
const char *dl_name, int type)
{
Frei0rContext *s = ctx->priv;
f0r_init_f f0r_init;
f0r_get_plugin_info_f f0r_get_plugin_info;
f0r_plugin_info_t *pi;
char *path;
if (!dl_name) {
av_log(ctx, AV_LOG_ERROR, "No filter name provided.\n");
return AVERROR(EINVAL);
}
/* see: http://piksel.org/frei0r/1.2/spec/1.2/spec/group__pluglocations.html */
if (path = getenv("FREI0R_PATH")) {
while(*path) {
char *ptr = av_get_token((const char **)&path, ":");
if (!ptr)
return AVERROR(ENOMEM);
s->dl_handle = load_path(ctx, ptr, dl_name);
av_freep(&ptr);
if (s->dl_handle)
break; /* found */
if (*path)
path++; /* skip ':' */
}
}
if (!s->dl_handle && (path = getenv("HOME"))) {
char prefix[1024];
snprintf(prefix, sizeof(prefix), "%s/.frei0r-1/lib/", path);
s->dl_handle = load_path(ctx, prefix, dl_name);
}
if (!s->dl_handle)
s->dl_handle = load_path(ctx, "/usr/local/lib/frei0r-1/", dl_name);
if (!s->dl_handle)
s->dl_handle = load_path(ctx, "/usr/lib/frei0r-1/", dl_name);
if (!s->dl_handle) {
av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'.\n", dl_name);
return AVERROR(EINVAL);
}
if (!(f0r_init = load_sym(ctx, "f0r_init" )) ||
!(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) ||
!(s->get_param_info = load_sym(ctx, "f0r_get_param_info" )) ||
!(s->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
!(s->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
!(s->update = load_sym(ctx, "f0r_update" )) ||
!(s->construct = load_sym(ctx, "f0r_construct" )) ||
!(s->destruct = load_sym(ctx, "f0r_destruct" )) ||
!(s->deinit = load_sym(ctx, "f0r_deinit" )))
return AVERROR(EINVAL);
if (f0r_init() < 0) {
av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module.\n");
return AVERROR(EINVAL);
}
f0r_get_plugin_info(&s->plugin_info);
pi = &s->plugin_info;
if (pi->plugin_type != type) {
av_log(ctx, AV_LOG_ERROR,
"Invalid type '%s' for this plugin\n",
pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
return AVERROR(EINVAL);
}
av_log(ctx, AV_LOG_VERBOSE,
"name:%s author:'%s' explanation:'%s' color_model:%s "
"frei0r_version:%d version:%d.%d num_params:%d\n",
pi->name, pi->author, pi->explanation,
pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
return 0;
}
static av_cold int frei0r_init(AVFilterContext *ctx,
const char *dl_name, int type)
{
Frei0rContext *s = ctx->priv;
f0r_init_f f0r_init;
f0r_get_plugin_info_f f0r_get_plugin_info;
f0r_plugin_info_t *pi;
char *path;
int ret = 0;
int i;
static const char* const frei0r_pathlist[] = {
"/usr/local/lib/frei0r-1/",
"/usr/lib/frei0r-1/",
"/usr/local/lib64/frei0r-1/",
"/usr/lib64/frei0r-1/"
};
if (!dl_name) {
av_log(ctx, AV_LOG_ERROR, "No filter name provided.\n");
return AVERROR(EINVAL);
}
/* see: http://frei0r.dyne.org/codedoc/html/group__pluglocations.html */
if ((path = av_strdup(getenv("FREI0R_PATH")))) {
#ifdef _WIN32
const char *separator = ";";
#else
const char *separator = ":";
#endif
char *p, *ptr = NULL;
for (p = path; p = av_strtok(p, separator, &ptr); p = NULL) {
/* add additional trailing slash in case it is missing */
char *p1 = av_asprintf("%s/", p);
if (!p1) {
ret = AVERROR(ENOMEM);
goto check_path_end;
}
ret = load_path(ctx, &s->dl_handle, p1, dl_name);
av_free(p1);
if (ret < 0)
goto check_path_end;
if (s->dl_handle)
break;
}
check_path_end:
av_free(path);
if (ret < 0)
return ret;
}
if (!s->dl_handle && (path = getenv("HOME"))) {
char *prefix = av_asprintf("%s/.frei0r-1/lib/", path);
if (!prefix)
return AVERROR(ENOMEM);
ret = load_path(ctx, &s->dl_handle, prefix, dl_name);
av_free(prefix);
if (ret < 0)
return ret;
}
for (i = 0; !s->dl_handle && i < FF_ARRAY_ELEMS(frei0r_pathlist); i++) {
ret = load_path(ctx, &s->dl_handle, frei0r_pathlist[i], dl_name);
if (ret < 0)
return ret;
}
if (!s->dl_handle) {
av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'.\n", dl_name);
return AVERROR(EINVAL);
}
if (!(f0r_init = load_sym(ctx, "f0r_init" )) ||
!(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) ||
!(s->get_param_info = load_sym(ctx, "f0r_get_param_info" )) ||
!(s->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
!(s->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
!(s->update = load_sym(ctx, "f0r_update" )) ||
!(s->construct = load_sym(ctx, "f0r_construct" )) ||
!(s->destruct = load_sym(ctx, "f0r_destruct" )) ||
!(s->deinit = load_sym(ctx, "f0r_deinit" )))
return AVERROR(EINVAL);
if (f0r_init() < 0) {
av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module.\n");
return AVERROR(EINVAL);
}
f0r_get_plugin_info(&s->plugin_info);
pi = &s->plugin_info;
if (pi->plugin_type != type) {
av_log(ctx, AV_LOG_ERROR,
"Invalid type '%s' for this plugin\n",
pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
return AVERROR(EINVAL);
}
av_log(ctx, AV_LOG_VERBOSE,
"name:%s author:'%s' explanation:'%s' color_model:%s "
"frei0r_version:%d version:%d.%d num_params:%d\n",
pi->name, pi->author, pi->explanation,
pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
return 0;
}
void IrrepSpace::Load (std::ifstream &ifs)
{
boost::archive::binary_iarchive load_sym(ifs);
load_sym >> *this;
}
