From 5b43da5a8491e6bb577b9e508c55c9619a1a850f Mon Sep 17 00:00:00 2001
From: Jamie Bullock <postlude@users.sourceforge.net>
Date: Wed, 8 Dec 2010 09:45:09 +0000
Subject: - moved dssi to pluginhost~ in preparation for renaming

svn path=/trunk/externals/postlude/; revision=14575
---
 pluginhost~/src/jsearch.c | 154 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100644 pluginhost~/src/jsearch.c

(limited to 'pluginhost~/src/jsearch.c')

diff --git a/pluginhost~/src/jsearch.c b/pluginhost~/src/jsearch.c
new file mode 100644
index 0000000..593c6f5
--- /dev/null
+++ b/pluginhost~/src/jsearch.c
@@ -0,0 +1,154 @@
+/* search.c
+
+   Free software by Richard W.E. Furse. Do with as you will. No
+   warranty. */
+
+/* patched by Jarno Seppänen, jams@cs.tut.fi, for plugin~ */
+
+/* patched by Jamie Bullock, jamie@postlude.co.uk, for dssi~ */
+
+/*****************************************************************************/
+
+#include <dirent.h>
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/*****************************************************************************/
+
+#include "dssi.h"
+#include "jutils.h"
+
+/*****************************************************************************/
+
+/* Search just the one directory. */
+    static void
+LADSPADirectoryPluginSearch (const char * pcDirectory, 
+        LADSPAPluginSearchCallbackFunction fCallbackFunction,
+        void* user_data)
+{
+    char * pcFilename;
+    DIR * psDirectory;
+    DSSI_Descriptor_Function fDescriptorFunction;
+    long lDirLength;
+    long iNeedSlash;
+    struct dirent * psDirectoryEntry;
+    void * pvPluginHandle;
+    int is_DSSI = 0;
+
+    lDirLength = strlen(pcDirectory);
+    if (!lDirLength)
+        return;
+    if (pcDirectory[lDirLength - 1] == '/')
+        iNeedSlash = 0;
+    else
+        iNeedSlash = 1;
+
+    psDirectory = opendir(pcDirectory);
+    if (!psDirectory)
+        return;
+
+    while (1) {
+
+        psDirectoryEntry = readdir(psDirectory);
+        if (!psDirectoryEntry) {
+            closedir(psDirectory);
+            return;
+        }
+
+        pcFilename = malloc(lDirLength
+                + strlen(psDirectoryEntry->d_name)
+                + 1 + iNeedSlash);
+        strcpy(pcFilename, pcDirectory);
+        if (iNeedSlash)
+            strcat(pcFilename, "/");
+        strcat(pcFilename, psDirectoryEntry->d_name);
+
+        pvPluginHandle = dlopen(pcFilename, RTLD_LAZY);
+        if (pvPluginHandle) {
+            /* This is a file and the file is a shared library! */
+
+            dlerror();
+            if(fDescriptorFunction = (DSSI_Descriptor_Function)dlsym(pvPluginHandle,
+                        "ladspa_descriptor"))
+                is_DSSI = 0;
+
+            else if(fDescriptorFunction = (DSSI_Descriptor_Function)dlsym(pvPluginHandle,
+                        "dssi_descriptor"))
+                is_DSSI = 1;
+
+            if (dlerror() == NULL && fDescriptorFunction) {
+                /* We've successfully found a ladspa_descriptor function. Pass
+                   it to the callback function. */
+                fCallbackFunction(pcFilename,
+                        pvPluginHandle,
+                        fDescriptorFunction,
+                        user_data,
+                        is_DSSI);
+                dlclose (pvPluginHandle);
+            }
+            else {
+                /* It was a library, but not a LADSPA one. Unload it. */
+                dlclose(pcFilename);
+            }
+        }
+    }
+}
+
+/*****************************************************************************/
+
+    void 
+LADSPAPluginSearch(LADSPAPluginSearchCallbackFunction fCallbackFunction,
+        void* user_data)
+{
+
+    char * pcBuffer;
+    const char * pcEnd;
+    const char * pcLADSPAPath;
+    char *pluginPath;
+    const char * pcStart;
+
+
+    pcLADSPAPath = NULL;
+
+    if(getenv("LADSPA_PATH") && getenv("DSSI_PATH")){ 
+        pluginPath = malloc(sizeof(char) * 
+                (strlen(getenv("LADSPA_PATH")) + 1) + 
+                sizeof(char) * strlen(getenv("DSSI_PATH")));
+        sprintf(pluginPath, "%s:%s", 
+                getenv("LADSPA_PATH"), getenv("DSSI_PATH"));
+        pcLADSPAPath = pluginPath;
+        free(pluginPath);
+    }
+    if (pcLADSPAPath == NULL) {
+        fprintf(stderr, "Warning: no LADSPA_PATH and DSSI_PATH, assuming /usr/lib/ladspa:/usr/local/lib/ladspa:/usr/lib/dssi:/usr/local/lib/dssi\n");
+        pcLADSPAPath = 
+            "/usr/lib/ladspa:/usr/local/lib/ladspa:/usr/lib/dssi:/usr/local/lib/dssi";
+    }
+
+    pcStart = pcLADSPAPath;
+    while (*pcStart != '\0') {
+        pcEnd = pcStart;
+        while (*pcEnd != ':' && *pcEnd != '\0')
+            pcEnd++;
+
+        pcBuffer = malloc(1 + pcEnd - pcStart);
+        if (pcEnd > pcStart)
+            strncpy(pcBuffer, pcStart, pcEnd - pcStart);
+        pcBuffer[pcEnd - pcStart] = '\0';
+
+        LADSPADirectoryPluginSearch(pcBuffer, fCallbackFunction, user_data);
+
+        pcStart = pcEnd;
+        if (*pcStart == ':')
+            pcStart++;
+    }
+}
+
+
+/*****************************************************************************/
+
+/* EOF */
-- 
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