add looping

4 files changed, 49 insertions, 4 deletions

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 46e02d4..7fe2030 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -8,3 +8,8 @@ add_dependencies(examples example)
 add_executable(panning ${CMAKE_CURRENT_LIST_DIR}/panning.c)
 target_link_libraries(panning mossrose)
 add_dependencies(examples panning)
+
+
+add_executable(loop ${CMAKE_CURRENT_LIST_DIR}/loop.c)
+target_link_libraries(loop mossrose)
+add_dependencies(examples loop)
diff --git a/examples/example.c b/examples/example.c
index 5e65d82..eefc41d 100644
--- a/examples/example.c
+++ b/examples/example.c
@@ -35,17 +35,17 @@ int main()
 	Pa_Sleep(500);
 
 	printf("play 1\n");
-	mossrose_play(&sound_512, -1);
+	mossrose_play(&sound_512, -1, 1);
 	printf("wait\n");
 	Pa_Sleep(1000);
 
 	printf("play 2\n");
-	mossrose_play(&sound_440, -1);
+	mossrose_play(&sound_440, -1, 1);
 	printf("wait\n");
 	Pa_Sleep(500);
 
 	printf("play 3\n");
-	mossrose_play(&sound_512, -1);
+	mossrose_play(&sound_512, -1, 1);
 	printf("wait\n");
 	Pa_Sleep(1000);
 
diff --git a/examples/loop.c b/examples/loop.c
new file mode 100644
index 0000000..1be04a9
--- /dev/null
+++ b/examples/loop.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <math.h>
+#include <mossrose.h>
+#include <portaudio.h>
+
+#define PI 3.14159
+
+
+#define SAMPLE_RATE 44100
+#define N_CHANNELS 8
+
+float f(float t)
+{
+	const int f0 = 440;
+	const int f1 = 880;
+	return ( t*f1 ) + ( (1-t)*f0 );
+}
+
+int main()
+{
+	float data[SAMPLE_RATE];
+	for (long i=0; i<SAMPLE_RATE; i++) {
+		float time = ((float)i)/SAMPLE_RATE;
+		data[i] = sin(2*PI*f(time)*time);
+	}
+
+	struct mossrose_sound_t sound = {
+		.left = data, .right = NULL, .mono = true, .len = SAMPLE_RATE
+	};
+
+	int err = mossrose_init(SAMPLE_RATE, N_CHANNELS, true);
+	if (err != 0)
+		fprintf(stderr, "FAILED TO INITIALIZE MOSSROSE\n");
+
+	int chan = mossrose_play(&sound, -1, 5);
+	Pa_Sleep(5000);
+
+	mossrose_terminate();
+	return 0;
+}
diff --git a/examples/panning.c b/examples/panning.c
index 485833a..b63727b 100644
--- a/examples/panning.c
+++ b/examples/panning.c
@@ -28,7 +28,7 @@ int main()
 
 	Pa_Sleep(500);
 
-	int chan = mossrose_play(&sound, -1);
+	int chan = mossrose_play(&sound, -1, 1);
 
 	for (int i=0; i<8000; i++) {
 		float time = ((float)i)/1000;