Init

1 files changed, 79 insertions, 0 deletions

diff --git a/src/sfml/audio/SoundBuffer.zig b/src/sfml/audio/SoundBuffer.zig
new file mode 100644
index 0000000..9727088
--- /dev/null
+++ b/src/sfml/audio/SoundBuffer.zig
@@ -0,0 +1,79 @@
+//! Storage for audio samples defining a sound. 
+
+const sf = @import("../sfml.zig");
+
+const SoundBuffer = @This();
+
+// Constructor/destructor
+/// Loads music from a file
+pub fn createFromFile(path: [:0]const u8) !SoundBuffer {
+    var sound = sf.c.sfSoundBuffer_createFromFile(path);
+    if (sound == null)
+        return sf.Error.resourceLoadingError;
+    return SoundBuffer{ .ptr = sound.? };
+}
+/// Creates a sound buffer from sample data
+pub fn createFromSamples(samples: []const i16, channel_count: usize, sample_rate: usize) !SoundBuffer {
+    var sound = sf.c.sfSoundBuffer_createFromSamples(@ptrCast([*c]const c_short, samples.ptr), samples.len, @intCast(c_uint, channel_count), @intCast(c_uint, sample_rate));
+    if (sound == null)
+        return sf.Error.resourceLoadingError;
+    return SoundBuffer{ .ptr = sound.? };
+}
+
+pub const initFromMemory = @compileError("Function is not implemented yet.");
+pub const initFromStream = @compileError("Function is not implemented yet.");
+
+/// Destroys this music object
+pub fn destroy(self: SoundBuffer) void {
+    sf.c.sfSoundBuffer_destroy(self.ptr);
+}
+
+// Getters / Setters
+
+/// Gets the duration of the sound
+pub fn getDuration(self: SoundBuffer) sf.system.Time {
+    return sf.system.Time.fromCSFML(sf.c.sfSoundBuffer_getDuration(self.ptr));
+}
+
+/// Gets the sample count of this sound
+pub fn getSampleCount(self: SoundBuffer) usize {
+    return @intCast(usize, sf.c.sfSoundBuffer_getSampleCount(self.ptr));
+}
+
+/// Gets the sample rate of this sound (n° of samples per second, often 44100)
+pub fn getSampleRate(self: SoundBuffer) usize {
+    return @intCast(usize, sf.c.sfSoundBuffer_getSampleRate(self.ptr));
+}
+
+/// Gets the channel count (2 is stereo for instance)
+pub fn getChannelCount(self: SoundBuffer) usize {
+    return @intCast(usize, sf.c.sfSoundBuffer_getChannelCount(self.ptr));
+}
+
+// Misc
+
+/// Save the sound buffer to an audio file
+pub fn saveToFile(self: SoundBuffer, path: [:0]const u8) !void {
+    if (sf.c.sfSoundBuffer_saveToFile(self.ptr, path) != 1)
+        return sf.Error.savingInFileFailed;
+}
+
+/// Pointer to the csfml texture
+ptr: *sf.c.sfSoundBuffer,
+
+test "sound buffer: sane getter and setters" {
+    const std = @import("std");
+    const tst = std.testing;
+    const allocator = std.heap.page_allocator;
+
+    var samples = try allocator.alloc(i16, 44100 * 3);
+    defer allocator.free(samples);
+
+    var buffer = try SoundBuffer.createFromSamples(samples, 1, 44100);
+    defer buffer.destroy();
+
+    try tst.expectApproxEqAbs(@as(f32, 3), buffer.getDuration().asSeconds(), 0.001);
+    try tst.expectEqual(@as(usize, 44100 * 3), buffer.getSampleCount());
+    try tst.expectEqual(@as(usize, 44100), buffer.getSampleRate());
+    try tst.expectEqual(@as(usize, 1), buffer.getChannelCount());
+}