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+/*
+ Copyright (C) 2000 Paul Davis
+ Copyright (C) 2005 Sampo Savolainen
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ $Id$
+*/
+
+#include <cstdio> // Needed so that libraptor (included in lrdf) won't complain
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <locale.h>
+
+#ifdef VST_SUPPORT
+#include <fst.h>
+#endif
+
+#include <lrdf.h>
+
+#include <pbd/error.h>
+
+#include <midi++/port.h>
+#include <midi++/port_request.h>
+#include <midi++/manager.h>
+#include <midi++/mmc.h>
+
+#include <ardour/ardour.h>
+#include <ardour/audio_library.h>
+#include <ardour/configuration.h>
+#include <ardour/plugin_manager.h>
+#include <ardour/source.h>
+#include <ardour/utils.h>
+#include <ardour/session.h>
+
+#include <ardour/mix.h>
+
+#if defined (__APPLE__)
+ #include <Carbon/Carbon.h> // For Gestalt
+#endif
+
+#include "i18n.h"
+
+ARDOUR::Configuration* ARDOUR::Config = 0;
+ARDOUR::AudioLibrary* ARDOUR::Library = 0;
+
+using namespace ARDOUR;
+using namespace std;
+
+MIDI::Port *default_mmc_port = 0;
+MIDI::Port *default_mtc_port = 0;
+MIDI::Port *default_midi_port = 0;
+
+Change ARDOUR::StartChanged = ARDOUR::new_change ();
+Change ARDOUR::LengthChanged = ARDOUR::new_change ();
+Change ARDOUR::PositionChanged = ARDOUR::new_change ();
+Change ARDOUR::NameChanged = ARDOUR::new_change ();
+Change ARDOUR::BoundsChanged = Change (0); // see init(), below
+
+
+static int
+setup_midi ()
+{
+ std::map<string,Configuration::MidiPortDescriptor*>::iterator i;
+ int nports;
+
+ if ((nports = Config->midi_ports.size()) == 0) {
+ warning << _("no MIDI ports specified: no MMC or MTC control possible") << endmsg;
+ return 0;
+ }
+
+ for (i = Config->midi_ports.begin(); i != Config->midi_ports.end(); ++i) {
+ Configuration::MidiPortDescriptor* port_descriptor;
+
+ port_descriptor = (*i).second;
+
+ MIDI::PortRequest request (port_descriptor->device,
+ port_descriptor->tag,
+ port_descriptor->mode,
+ port_descriptor->type);
+
+ if (request.status != MIDI::PortRequest::OK) {
+ error << compose(_("MIDI port specifications for \"%1\" are not understandable."), port_descriptor->tag) << endmsg;
+ continue;
+ }
+
+ MIDI::Manager::instance()->add_port (request);
+ }
+
+ if (nports > 1) {
+
+ /* More than one port, so try using specific names for each port */
+
+ map<string,Configuration::MidiPortDescriptor *>::iterator i;
+
+ if (Config->get_mmc_port_name() != N_("default")) {
+ default_mmc_port = MIDI::Manager::instance()->port (Config->get_mmc_port_name());
+ }
+
+ if (Config->get_mtc_port_name() != N_("default")) {
+ default_mtc_port = MIDI::Manager::instance()->port (Config->get_mtc_port_name());
+ }
+
+ if (Config->get_midi_port_name() != N_("default")) {
+ default_midi_port = MIDI::Manager::instance()->port (Config->get_midi_port_name());
+ }
+
+ /* If that didn't work, just use the first listed port */
+
+ if (default_mmc_port == 0) {
+ default_mmc_port = MIDI::Manager::instance()->port (0);
+ }
+
+ if (default_mtc_port == 0) {
+ default_mtc_port = MIDI::Manager::instance()->port (0);
+ }
+
+ if (default_midi_port == 0) {
+ default_midi_port = MIDI::Manager::instance()->port (0);
+ }
+
+ } else {
+
+ /* Only one port described, so use it for both MTC and MMC */
+
+ default_mmc_port = MIDI::Manager::instance()->port (0);
+ default_mtc_port = default_mmc_port;
+ default_midi_port = default_mmc_port;
+ }
+
+ if (default_mmc_port == 0) {
+ warning << compose (_("No MMC control (MIDI port \"%1\" not available)"), Config->get_mmc_port_name())
+ << endmsg;
+ return 0;
+ }
+
+ if (default_mtc_port == 0) {
+ warning << compose (_("No MTC support (MIDI port \"%1\" not available)"), Config->get_mtc_port_name())
+ << endmsg;
+ }
+
+ if (default_midi_port == 0) {
+ warning << compose (_("No MIDI parameter support (MIDI port \"%1\" not available)"), Config->get_midi_port_name())
+ << endmsg;
+ }
+
+ return 0;
+}
+
+int
+ARDOUR::init (AudioEngine& engine, bool use_vst, bool try_optimization, void (*sighandler)(int,siginfo_t*,void*))
+{
+ bool generic_mix_functions = true;
+
+ (void) bindtextdomain(PACKAGE, LOCALEDIR);
+
+ Config = new Configuration;
+
+ if (Config->load_state ()) {
+ return -1;
+ }
+
+ Config->set_use_vst (use_vst);
+
+ if (setup_midi ()) {
+ return -1;
+ }
+
+#ifdef VST_SUPPORT
+ if (Config->get_use_vst() && fst_init (sighandler)) {
+ return -1;
+ }
+#endif
+
+ if (try_optimization) {
+
+#if defined (ARCH_X86) && defined (BUILD_SSE_OPTIMIZATIONS)
+
+ unsigned int use_sse = 0;
+
+ asm volatile (
+ "mov $1, %%eax\n"
+ "pushl %%ebx\n"
+ "cpuid\n"
+ "popl %%ebx\n"
+ "andl $33554432, %%edx\n"
+ "movl %%edx, %0\n"
+ : "=m" (use_sse)
+ :
+ : "%eax", "%ecx", "%edx", "memory");
+
+ if (use_sse) {
+ cerr << "Enabling SSE optimized routines" << endl;
+
+ // SSE SET
+ Session::compute_peak = x86_sse_compute_peak;
+ Session::apply_gain_to_buffer = x86_sse_apply_gain_to_buffer;
+ Session::mix_buffers_with_gain = x86_sse_mix_buffers_with_gain;
+ Session::mix_buffers_no_gain = x86_sse_mix_buffers_no_gain;
+
+ generic_mix_functions = false;
+
+ }
+
+ #elif defined (__APPLE__)
+ long sysVersion = 0;
+
+ if (noErr != Gestalt(gestaltSystemVersion, &sysVersion))
+ sysVersion = 0;
+
+ if (sysVersion >= 0x00001040) { // Tiger at least
+ Session::compute_peak = veclib_compute_peak;
+ Session::apply_gain_to_buffer = veclib_apply_gain_to_buffer;
+ Session::mix_buffers_with_gain = veclib_mix_buffers_with_gain;
+ Session::mix_buffers_no_gain = veclib_mix_buffers_no_gain;
+
+ generic_mix_functions = false;
+
+ info << "Apple VecLib H/W specific optimizations in use" << endmsg;
+ }
+#endif
+ }
+
+ if (generic_mix_functions) {
+
+ Session::compute_peak = compute_peak;
+ Session::apply_gain_to_buffer = apply_gain_to_buffer;
+ Session::mix_buffers_with_gain = mix_buffers_with_gain;
+ Session::mix_buffers_no_gain = mix_buffers_no_gain;
+
+ info << "No H/W specific optimizations in use" << endmsg;
+ }
+
+ lrdf_init();
+ Library = new AudioLibrary;
+
+ /* singleton - first object is "it" */
+ new PluginManager (engine);
+
+ BoundsChanged = Change (StartChanged|PositionChanged|LengthChanged);
+
+ return 0;
+}
+
+int
+ARDOUR::cleanup ()
+{
+ delete Library;
+ lrdf_cleanup ();
+ return 0;
+}
+
+ARDOUR::id_t
+ARDOUR::new_id ()
+{
+ return get_uid();
+}
+
+ARDOUR::Change
+ARDOUR::new_change ()
+{
+ Change c;
+ static uint32_t change_bit = 1;
+
+ /* XXX catch out-of-range */
+
+ c = Change (change_bit);
+ change_bit <<= 1;
+
+ return c;
+}
+
+static string
+find_file (string name, string dir)
+{
+ string path;
+
+ /* stop A: ~/.ardour/... */
+
+ path = getenv ("HOME");
+
+ if (path.length()) {
+
+ path += "/.ardour/";
+
+ /* try to ensure that the directory exists.
+ failure doesn't mean much here.
+ */
+
+ mkdir (path.c_str(), 0755);
+
+ path += name;
+
+ if (access (path.c_str(), R_OK) == 0) {
+ return path;
+ }
+ }
+
+ /* stop B: dir/... */
+
+ path = dir;
+ path += "/ardour/";
+ path += name;
+
+ if (access (path.c_str(), R_OK) == 0) {
+ return path;
+ }
+
+ return "";
+}
+
+string
+ARDOUR::find_config_file (string name)
+{
+ char* envvar;
+ if ((envvar = getenv("ARDOUR_CONFIG_PATH")) == 0) {
+ envvar = CONFIG_DIR;
+ }
+
+ return find_file (name, envvar);
+}
+
+string
+ARDOUR::find_data_file (string name)
+{
+ char* envvar;
+ if ((envvar = getenv("ARDOUR_DATA_PATH")) == 0) {
+ envvar = DATA_DIR;
+ }
+
+ return find_file (name, envvar);
+}
+
+ARDOUR::LocaleGuard::LocaleGuard (const char* str)
+{
+ old = strdup (setlocale (LC_NUMERIC, NULL));
+ if (strcmp (old, str)) {
+ setlocale (LC_NUMERIC, str);
+ }
+}
+
+ARDOUR::LocaleGuard::~LocaleGuard ()
+{
+ setlocale (LC_NUMERIC, old);
+ free ((char*)old);
+}
+
+ARDOUR::OverlapType
+ARDOUR::coverage (jack_nframes_t sa, jack_nframes_t ea,
+ jack_nframes_t sb, jack_nframes_t eb)
+{
+ /* OverlapType returned reflects how the second (B)
+ range overlaps the first (A).
+
+ The diagrams show various relative placements
+ of A and B for each OverlapType.
+
+ Notes:
+ Internal: the start points cannot coincide
+ External: the start and end points can coincide
+ Start: end points can coincide
+ End: start points can coincide
+
+ XXX Logically, Internal should disallow end
+ point equality.
+ */
+
+ /*
+ |--------------------| A
+ |------| B
+ |-----------------| B
+
+
+ "B is internal to A"
+
+ */
+#ifdef OLD_COVERAGE
+ if ((sb >= sa) && (eb <= ea)) {
+#else
+ if ((sb > sa) && (eb <= ea)) {
+#endif
+ return OverlapInternal;
+ }
+
+ /*
+ |--------------------| A
+ ----| B
+ -----------------------| B
+ --| B
+
+ "B overlaps the start of A"
+
+ */
+
+ if ((eb >= sa) && (eb <= ea)) {
+ return OverlapStart;
+ }
+ /*
+ |---------------------| A
+ |----------------- B
+ |----------------------- B
+ |- B
+
+ "B overlaps the end of A"
+
+ */
+ if ((sb >= sa) && (sb <= ea)) {
+ return OverlapEnd;
+ }
+ /*
+ |--------------------| A
+ -------------------------- B
+ |----------------------- B
+ ----------------------| B
+ |--------------------| B
+
+
+ "B overlaps all of A"
+ */
+ if ((sa >= sb) && (sa <= eb) && (ea <= eb)) {
+ return OverlapExternal;
+ }
+
+ return OverlapNone;
+}
+
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