decoder/mikmod: convert to C++

1 files changed, 240 insertions, 0 deletions

diff --git a/src/decoder/MikmodDecoderPlugin.cxx b/src/decoder/MikmodDecoderPlugin.cxx
new file mode 100644
index 000000000..94dff0856
--- /dev/null
+++ b/src/decoder/MikmodDecoderPlugin.cxx
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include "MikmodDecoderPlugin.hxx"
+#include "decoder_api.h"
+#include "mpd_error.h"
+#include "tag_handler.h"
+
+#include <glib.h>
+#include <mikmod.h>
+#include <assert.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "mikmod"
+
+/* this is largely copied from alsaplayer */
+
+static constexpr size_t MIKMOD_FRAME_SIZE = 4096;
+
+static BOOL
+mikmod_mpd_init(void)
+{
+	return VC_Init();
+}
+
+static void
+mikmod_mpd_exit(void)
+{
+	VC_Exit();
+}
+
+static void
+mikmod_mpd_update(void)
+{
+}
+
+static BOOL
+mikmod_mpd_is_present(void)
+{
+	return true;
+}
+
+static char drv_name[] = PACKAGE_NAME;
+static char drv_version[] = VERSION;
+
+#if (LIBMIKMOD_VERSION > 0x030106)
+static char drv_alias[] = PACKAGE;
+#endif
+
+static MDRIVER drv_mpd = {
+	nullptr,
+	drv_name,
+	drv_version,
+	0,
+	255,
+#if (LIBMIKMOD_VERSION > 0x030106)
+	drv_alias,
+#if (LIBMIKMOD_VERSION >= 0x030200)
+	nullptr,  /* CmdLineHelp */
+#endif
+	nullptr,  /* CommandLine */
+#endif
+	mikmod_mpd_is_present,
+	VC_SampleLoad,
+	VC_SampleUnload,
+	VC_SampleSpace,
+	VC_SampleLength,
+	mikmod_mpd_init,
+	mikmod_mpd_exit,
+	nullptr,
+	VC_SetNumVoices,
+	VC_PlayStart,
+	VC_PlayStop,
+	mikmod_mpd_update,
+	nullptr,
+	VC_VoiceSetVolume,
+	VC_VoiceGetVolume,
+	VC_VoiceSetFrequency,
+	VC_VoiceGetFrequency,
+	VC_VoiceSetPanning,
+	VC_VoiceGetPanning,
+	VC_VoicePlay,
+	VC_VoiceStop,
+	VC_VoiceStopped,
+	VC_VoiceGetPosition,
+	VC_VoiceRealVolume
+};
+
+static unsigned mikmod_sample_rate;
+
+static bool
+mikmod_decoder_init(const struct config_param *param)
+{
+	static char params[] = "";
+
+	mikmod_sample_rate = config_get_block_unsigned(param, "sample_rate",
+						       44100);
+	if (!audio_valid_sample_rate(mikmod_sample_rate))
+		MPD_ERROR("Invalid sample rate in line %d: %u",
+			  param->line, mikmod_sample_rate);
+
+	md_device = 0;
+	md_reverb = 0;
+
+	MikMod_RegisterDriver(&drv_mpd);
+	MikMod_RegisterAllLoaders();
+
+	md_pansep = 64;
+	md_mixfreq = mikmod_sample_rate;
+	md_mode = (DMODE_SOFT_MUSIC | DMODE_INTERP | DMODE_STEREO |
+		   DMODE_16BITS);
+
+	if (MikMod_Init(params)) {
+		g_warning("Could not init MikMod: %s\n",
+			  MikMod_strerror(MikMod_errno));
+		return false;
+	}
+
+	return true;
+}
+
+static void
+mikmod_decoder_finish(void)
+{
+	MikMod_Exit();
+}
+
+static void
+mikmod_decoder_file_decode(struct decoder *decoder, const char *path_fs)
+{
+	char *path2;
+	MODULE *handle;
+	struct audio_format audio_format;
+	int ret;
+	SBYTE buffer[MIKMOD_FRAME_SIZE];
+	enum decoder_command cmd = DECODE_COMMAND_NONE;
+
+	path2 = g_strdup(path_fs);
+	handle = Player_Load(path2, 128, 0);
+	g_free(path2);
+
+	if (handle == nullptr) {
+		g_warning("failed to open mod: %s", path_fs);
+		return;
+	}
+
+	/* Prevent module from looping forever */
+	handle->loop = 0;
+
+	audio_format_init(&audio_format, mikmod_sample_rate, SAMPLE_FORMAT_S16, 2);
+	assert(audio_format_valid(&audio_format));
+
+	decoder_initialized(decoder, &audio_format, false, 0);
+
+	Player_Start(handle);
+	while (cmd == DECODE_COMMAND_NONE && Player_Active()) {
+		ret = VC_WriteBytes(buffer, sizeof(buffer));
+		cmd = decoder_data(decoder, nullptr, buffer, ret, 0);
+	}
+
+	Player_Stop();
+	Player_Free(handle);
+}
+
+static bool
+mikmod_decoder_scan_file(const char *path_fs,
+			 const struct tag_handler *handler, void *handler_ctx)
+{
+	char *path2 = g_strdup(path_fs);
+	MODULE *handle = Player_Load(path2, 128, 0);
+
+	if (handle == nullptr) {
+		g_free(path2);
+		g_debug("Failed to open file: %s", path_fs);
+		return false;
+
+	}
+
+	Player_Free(handle);
+
+	char *title = Player_LoadTitle(path2);
+	g_free(path2);
+
+	if (title != nullptr) {
+		tag_handler_invoke_tag(handler, handler_ctx,
+				       TAG_TITLE, title);
+		free(title);
+	}
+
+	return true;
+}
+
+static const char *const mikmod_decoder_suffixes[] = {
+	"amf",
+	"dsm",
+	"far",
+	"gdm",
+	"imf",
+	"it",
+	"med",
+	"mod",
+	"mtm",
+	"s3m",
+	"stm",
+	"stx",
+	"ult",
+	"uni",
+	"xm",
+	nullptr
+};
+
+const struct decoder_plugin mikmod_decoder_plugin = {
+	"mikmod",
+	mikmod_decoder_init,
+	mikmod_decoder_finish,
+	nullptr,
+	mikmod_decoder_file_decode,
+	mikmod_decoder_scan_file,
+	nullptr,
+	nullptr,
+	mikmod_decoder_suffixes,
+	nullptr,
+};