2 files changed, 236 insertions, 0 deletions
diff --git a/backends/mixer/wincesdl/wincesdl-mixer.cpp b/backends/mixer/wincesdl/wincesdl-mixer.cpp
new file mode 100644
index 0000000000..fb8a7d10c7
--- /dev/null
+++ b/backends/mixer/wincesdl/wincesdl-mixer.cpp
@@ -0,0 +1,183 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifdef _WIN32_WCE
+
+// Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#include "common/config-manager.h"
+#include "backends/platform/wince/wince-sdl.h"
+#include "backends/mixer/wincesdl/wincesdl-mixer.h"
+#include "common/system.h"
+
+#ifdef USE_VORBIS
+#ifndef USE_TREMOR
+#include <vorbis/vorbisfile.h>
+#else
+#include <tremor/ivorbisfile.h>
+#endif
+#endif
+
+#define SAMPLES_PER_SEC_OLD 11025
+#define SAMPLES_PER_SEC_NEW 22050
+
+WINCESdlMixerManager::WINCESdlMixerManager() {
+
+}
+
+WINCESdlMixerManager::~WINCESdlMixerManager() {
+
+}
+
+void WINCESdlMixerManager::init() {
+	SDL_AudioSpec desired;
+	int thread_priority;
+
+	uint32 sampleRate = compute_sample_rate();
+	if (sampleRate == 0)
+		warning("OSystem_WINCE3::setupMixer called with sample rate 0 - audio will not work");
+	else if (_mixer && _mixer->getOutputRate() == sampleRate) {
+		debug(1, "Skipping sound mixer re-init: samplerate is good");
+		return;
+	}
+
+	memset(&desired, 0, sizeof(desired));
+	desired.freq = sampleRate;
+	desired.format = AUDIO_S16SYS;
+	desired.channels = 2;
+	desired.samples = 128;
+	desired.callback = private_sound_proc;
+	desired.userdata = this;
+
+	// Create the mixer instance
+	if (_mixer == 0)
+		_mixer = new Audio::MixerImpl(g_system, sampleRate);
+
+	// Add sound thread priority
+	if (!ConfMan.hasKey("sound_thread_priority"))
+		thread_priority = THREAD_PRIORITY_NORMAL;
+	else
+		thread_priority = ConfMan.getInt("sound_thread_priority");
+
+	desired.thread_priority = thread_priority;
+
+	SDL_CloseAudio();
+	if (SDL_OpenAudio(&desired, NULL) != 0) {
+		warning("Could not open audio device: %s", SDL_GetError());
+		_mixer->setReady(false);
+
+	} else {
+		debug(1, "Sound opened OK, mixing at %d Hz", sampleRate);
+
+		// Re-create mixer to match the output rate
+		int vol1 = _mixer->getVolumeForSoundType(Audio::Mixer::kPlainSoundType);
+		int vol2 = _mixer->getVolumeForSoundType(Audio::Mixer::kMusicSoundType);
+		int vol3 = _mixer->getVolumeForSoundType(Audio::Mixer::kSFXSoundType);
+		int vol4 = _mixer->getVolumeForSoundType(Audio::Mixer::kSpeechSoundType);
+		delete _mixer;
+		_mixer = new Audio::MixerImpl(g_system, sampleRate);
+		_mixer->setVolumeForSoundType(Audio::Mixer::kPlainSoundType, vol1);
+		_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, vol2);
+		_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, vol3);
+		_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, vol4);
+		_mixer->setReady(true);
+		SDL_PauseAudio(0);
+	}
+}
+
+void WINCESdlMixerManager::private_sound_proc(void *param, byte *buf, int len) {
+	WINCESdlMixerManager *this_ = (WINCESdlMixerManager *)param;
+	assert(this_);
+
+	if (this_->_mixer)
+		this_->_mixer->mixCallback(buf, len);
+	if (!OSystem_WINCE3::_soundMaster)
+		memset(buf, 0, len);
+}
+
+uint32 WINCESdlMixerManager::compute_sample_rate() {
+	uint32 sampleRate;
+
+	// Force at least medium quality FM synthesis for FOTAQ
+	Common::String gameid(ConfMan.get("gameid"));
+	if (gameid == "queen") {
+		if (!((ConfMan.hasKey("FM_high_quality") && ConfMan.getBool("FM_high_quality")) ||
+			(ConfMan.hasKey("FM_medium_quality") && ConfMan.getBool("FM_medium_quality")))) {
+			ConfMan.setBool("FM_medium_quality", true);
+			ConfMan.flushToDisk();
+		}
+	}
+	// See if the output frequency is forced by the game
+	if (gameid == "ft" || gameid == "dig" || gameid == "comi" || gameid == "queen" || gameid == "sword" || gameid == "agi")
+			sampleRate = SAMPLES_PER_SEC_NEW;
+	else {
+		if (ConfMan.hasKey("high_sample_rate") && ConfMan.getBool("high_sample_rate"))
+			sampleRate = SAMPLES_PER_SEC_NEW;
+		else
+			sampleRate = SAMPLES_PER_SEC_OLD;
+	}
+
+#ifdef USE_VORBIS
+	// Modify the sample rate on the fly if OGG is involved
+	if (sampleRate == SAMPLES_PER_SEC_OLD)
+		if (checkOggHighSampleRate())
+			 sampleRate = SAMPLES_PER_SEC_NEW;
+#endif
+
+	return sampleRate;
+}
+
+#ifdef USE_VORBIS
+bool WINCESdlMixerManager::checkOggHighSampleRate() {
+	char trackFile[255];
+	FILE *testFile;
+	OggVorbis_File *test_ov_file = new OggVorbis_File;
+
+	// FIXME: The following sprintf assumes that "path" is always
+	// terminated by a path separator. This is *not* true in general.
+	// This code really should check for the path separator, or even
+	// better, use the FSNode API.
+	sprintf(trackFile, "%sTrack1.ogg", ConfMan.get("path").c_str());
+	// Check if we have an OGG audio track
+	testFile = fopen(trackFile, "rb");
+	if (testFile) {
+		if (!ov_open(testFile, test_ov_file, NULL, 0)) {
+			bool highSampleRate = (ov_info(test_ov_file, -1)->rate == 22050);
+			ov_clear(test_ov_file);
+			delete test_ov_file;
+			return highSampleRate;
+		}
+	}
+
+	// Do not test for OGG samples - too big and too slow anyway :)
+
+	delete test_ov_file;
+	return false;
+}
+#endif
+
+#endif
+
diff --git a/backends/mixer/wincesdl/wincesdl-mixer.h b/backends/mixer/wincesdl/wincesdl-mixer.h
new file mode 100644
index 0000000000..6c2f1efeee
--- /dev/null
+++ b/backends/mixer/wincesdl/wincesdl-mixer.h
@@ -0,0 +1,53 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef BACKENDS_MIXER_WINCE_SDL_H
+#define BACKENDS_MIXER_WINCE_SDL_H
+
+#include "backends/mixer/sdl/sdl-mixer.h"
+
+/**
+ * SDL mixer manager for WinCE
+ */
+class WINCESdlMixerManager : public SdlMixerManager {
+public:
+	WINCESdlMixerManager();
+	virtual ~WINCESdlMixerManager();
+
+	virtual void init();
+
+private:
+
+#ifdef USE_VORBIS
+	bool checkOggHighSampleRate();
+#endif
+
+	static void private_sound_proc(void *param, byte *buf, int len);
+	uint32 compute_sample_rate();
+
+};
+
+#endif
+