Merge pull request #6 from r-lyeh/master

extend with PD MOD/XM player

examples/multi_playback.c

+#define MAL_IMPLEMENTATION
+#include "../mini_al.h"
+
+#define DR_WAV_IMPLEMENTATION
+#include "../extras/dr_wav.h"
+
+#define JAR_MOD_IMPLEMENTATION
+#include "../extras/jar_mod.h"
+#undef DEBUG
+
+#define JAR_XM_IMPLEMENTATION
+#include "../extras/jar_xm.h"
+
+#include <stdio.h>
+
+// This is the function that's used for sending more data to the device for playback.
+mal_uint32 on_send_wav_frames_to_device(mal_device* pDevice, mal_uint32 frameCount, void* pSamples)
+{
+	drwav* pWav = (drwav*)pDevice->pUserData;
+	if (pWav == NULL) {
+		return 0;
+	}
+	
+	return (mal_uint32)drwav_read_s16(pWav, frameCount * pDevice->channels, (mal_int16*)pSamples) / pDevice->channels;
+}
+
+mal_uint32 on_send_mod_frames_to_device(mal_device* pDevice, mal_uint32 frameCount, void* pSamples)
+{
+	jar_mod_context_t* pMod = (jar_mod_context_t*)pDevice->pUserData;
+	if (pMod == NULL) {
+		return 0;
+	}
+	
+	jar_mod_fillbuffer(pMod, (mal_int16*)pSamples, frameCount * pDevice->channels, 0);
+	return (mal_uint32)(frameCount * pDevice->channels);
+}
+
+mal_uint32 on_send_xm_frames_to_device(mal_device* pDevice, mal_uint32 frameCount, void* pSamples)
+{
+	jar_xm_context_t* pXM = (jar_xm_context_t*)pDevice->pUserData;
+	if (pXM == NULL) {
+		return 0;
+	}
+	
+	jar_xm_generate_samples_16bit(pXM, (short*)pSamples, frameCount * pDevice->channels); // (48000 / 60) / 2
+	return (mal_uint32)(frameCount * pDevice->channels);
+}
+
+int main(int argc, char** argv)
+{
+	int exitcode = 0;
+
+	if (argc < 2) {
+		printf("No input file.");
+		return -1;
+	}
+
+	enum { UNK, WAV, MOD, XM } type = UNK;
+
+	jar_mod_context_t mod;
+	jar_mod_init(&mod);
+
+	jar_xm_context_t *xm = 0;
+
+	drwav wav;
+	if ( type == UNK && drwav_init_file(&wav, argv[1]) ) type = WAV;
+	if ( type == UNK && (jar_xm_create_context_from_file(&xm, 48000, argv[1]) == 0)) type = XM;
+	if ( type == UNK && (jar_mod_load_file(&mod, argv[1]) != 0) ) type = MOD;
+
+	if( type == UNK ) {
+		printf("Not a valid input file.");
+		exitcode = -2;
+		goto end;
+	}
+
+	mal_context context;
+	if (mal_context_init(NULL, 0, NULL, &context) != MAL_SUCCESS) {
+		printf("Failed to initialize context.");
+		exitcode = -3;
+		goto end;
+	}
+
+	mal_device_config config;
+	if( type == WAV ) config = mal_device_config_init_playback(mal_format_s16, wav.channels, wav.sampleRate, on_send_wav_frames_to_device );
+	if( type == MOD ) config = mal_device_config_init_playback(mal_format_s16, 2, mod.playrate, on_send_mod_frames_to_device );
+	if( type == XM )  config = mal_device_config_init_playback(mal_format_s16, 2, 48000, on_send_xm_frames_to_device );
+
+	mal_device device;
+	if (mal_device_init(&context, mal_device_type_playback, NULL, &config, type == WAV ? (void*)&wav : type == MOD ? (void*)&mod : (void*)xm, &device) != MAL_SUCCESS) {
+		printf("Failed to open playback device.");
+		mal_context_uninit(&context);
+		exitcode = -4;
+		goto end;
+	}
+
+	mal_device_start(&device);
+	
+	printf("Press Enter to quit...");
+	getchar();
+	
+	mal_device_uninit(&device);
+	mal_context_uninit(&context);
+
+	end:;
+	drwav_uninit(&wav);
+	jar_mod_unload(&mod);
+	if(xm) jar_xm_free_context(xm);
+	
+	return exitcode;
+}