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No commits in common. "c502e4b5464ded4ae1dc68ee308a07edbe28ccf0" and "c836357df0eeddf810527113538d55505b8601d2" have entirely different histories.

27 changed files with 3 additions and 109 deletions

1
.gitignore vendored
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@ -1,3 +1,2 @@
build/ build/
out/ out/
.cache

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@ -20,7 +20,6 @@ set(BUILD_EXAMPLE_PROGRAMS OFF CACHE BOOL "")
set(BUILD_DYNAMIC_LIBS ON CACHE BOOL "" FORCE) set(BUILD_DYNAMIC_LIBS ON CACHE BOOL "" FORCE)
set(BUILD_STATIC_LIBS ON CACHE BOOL "" FORCE) set(BUILD_STATIC_LIBS ON CACHE BOOL "" FORCE)
# libsoundio
add_subdirectory("${CMAKE_SOURCE_DIR}/extern/libsoundio") add_subdirectory("${CMAKE_SOURCE_DIR}/extern/libsoundio")
target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_SOURCE_DIR}/extern/libsoundio") target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_SOURCE_DIR}/extern/libsoundio")
@ -28,6 +27,3 @@ target_link_libraries(${PROJECT_NAME} PRIVATE
$<$<CONFIG:Debug>:libsoundio_shared> $<$<CONFIG:Debug>:libsoundio_shared>
$<$<CONFIG:Release>:libsoundio_static> $<$<CONFIG:Release>:libsoundio_static>
) )
# math
target_link_libraries(${PROJECT_NAME} PRIVATE m)

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@ -1 +0,0 @@
build/compile_commands.json

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@ -1,108 +1,8 @@
#include <soundio/soundio.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
static const float PI = 3.1415926535f; int
static float seconds_offset = 0.0f; main(int argc, char *argv[]) {
static void write_callback(struct SoundIoOutStream *outstream, printf("Hello, %s\n", argv[0]);
int frame_count_min, int frame_count_max)
{
const struct SoundIoChannelLayout *layout = &outstream->layout;
float float_sample_rate = outstream->sample_rate;
float seconds_per_frame = 1.0f / float_sample_rate;
struct SoundIoChannelArea *areas;
int frames_left = frame_count_max;
int err;
while (frames_left > 0) {
int frame_count = frames_left;
if ((err = soundio_outstream_begin_write(outstream, &areas, &frame_count))) {
fprintf(stderr, "%s\n", soundio_strerror(err));
exit(1);
}
if (!frame_count)
break;
float pitch = 440.0f;
float radians_per_second = pitch * 2.0f * PI;
for (int frame = 0; frame < frame_count; frame += 1) {
float sample = sin((seconds_offset + frame * seconds_per_frame) * radians_per_second);
for (int channel = 0; channel < layout->channel_count; channel += 1) {
float *ptr = (float*)(areas[channel].ptr + areas[channel].step * frame);
*ptr = sample;
}
}
seconds_offset = fmod(seconds_offset + seconds_per_frame * frame_count, 1.0);
if ((err = soundio_outstream_end_write(outstream))) {
fprintf(stderr, "%s\n", soundio_strerror(err));
exit(1);
}
frames_left -= frame_count;
}
}
int main(int argc, char **argv) {
int err;
struct SoundIo *soundio = soundio_create();
if (!soundio) {
fprintf(stderr, "out of memory\n");
return 1;
}
if ((err = soundio_connect(soundio))) {
fprintf(stderr, "error connecting: %s\n", soundio_strerror(err));
return 1;
}
soundio_flush_events(soundio);
int default_out_device_index = soundio_default_output_device_index(soundio);
if (default_out_device_index < 0) {
fprintf(stderr, "no output device found\n");
return 1;
}
struct SoundIoDevice *device = soundio_get_output_device(soundio, default_out_device_index);
if (!device) {
fprintf(stderr, "out of memory\n");
return 1;
}
fprintf(stderr, "Output device: %s\n", device->name);
struct SoundIoOutStream *outstream = soundio_outstream_create(device);
if (!outstream) {
fprintf(stderr, "out of memory\n");
return 1;
}
outstream->format = SoundIoFormatFloat32NE;
outstream->write_callback = write_callback;
if ((err = soundio_outstream_open(outstream))) {
fprintf(stderr, "unable to open device: %s", soundio_strerror(err));
return 1;
}
if (outstream->layout_error)
fprintf(stderr, "unable to set channel layout: %s\n", soundio_strerror(outstream->layout_error));
if ((err = soundio_outstream_start(outstream))) {
fprintf(stderr, "unable to start device: %s\n", soundio_strerror(err));
return 1;
}
for (;;)
soundio_wait_events(soundio);
soundio_outstream_destroy(outstream);
soundio_device_unref(device);
soundio_destroy(soundio);
return 0; return 0;
} }