zig/mach
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

sysaudio: improve backend selection; remove i8 sample support (#767)

Browse source 
* sysaudio: fix compilation errors
* re-order backend selection
* remove i8 samples support from backends and disable signedToSigned convertion for now
* update sine-wave example
This commit is contained in:
Ali Chraghi 2023-04-30 16:36:39 -07:00 • committed by GitHub
parent 8fbc36999f
commit ed05166348
Failed to generate hash of commit
8 changed files with 64 additions and 89 deletions
Download patch file Download diff file Expand all files Collapse all files

18
libs/sysaudio/src/main.zig
View file

@ -213,24 +213,17 @@ pub const Player = struct {
f32 => floatToUnsigned(u8, sample),
else => unreachable,
},
.i8 => std.mem.bytesAsValue(i8, ptr[0..@sizeOf(i8)]).* = switch (@TypeOf(sample)) {
i8 => sample,
u8 => unsignedToSigned(i8, sample),
i16, i24, i32 => signedToSigned(i8, sample),
f32 => floatToSigned(i8, sample),
else => unreachable,
},
.i16 => std.mem.bytesAsValue(i16, ptr[0..@sizeOf(i16)]).* = switch (@TypeOf(sample)) {
i16 => sample,
u8 => unsignedToSigned(i16, sample),
i8, i24, i32 => signedToSigned(i16, sample),
// i8, i24, i32 => signedToSigned(i16, sample),
f32 => floatToSigned(i16, sample),
else => unreachable,
},
.i24 => std.mem.bytesAsValue(i24, ptr[0..@sizeOf(i24)]).* = switch (@TypeOf(sample)) {
i24 => sample,
u8 => unsignedToSigned(i24, sample),
i8, i16, i32 => signedToSigned(i24, sample),
// i8, i16, i32 => signedToSigned(i24, sample),
f32 => floatToSigned(i24, sample),
else => unreachable,
},
@ -238,7 +231,7 @@ pub const Player = struct {
.i32 => std.mem.bytesAsValue(i32, ptr[0..@sizeOf(i32)]).* = switch (@TypeOf(sample)) {
i32 => sample,
u8 => unsignedToSigned(i32, sample),
i8, i16, i24 => signedToSigned(i32, sample),
// i8, i16, i24 => signedToSigned(i32, sample),
f32 => floatToSigned(i32, sample),
else => unreachable,
},
@ -377,7 +370,6 @@ pub const Channel = struct {
pub const Format = enum {
u8,
i8,
i16,
i24,
i24_4b,
@ -386,7 +378,7 @@ pub const Format = enum {
pub fn size(self: Format) u8 {
return switch (self) {
.u8, .i8 => 1,
.u8 => 1,
.i16 => 2,
.i24 => 3,
.i24_4b, .i32, .f32 => 4,
@ -395,7 +387,7 @@ pub const Format = enum {
pub fn validSize(self: Format) u8 {
return switch (self) {
.u8, .i8 => 1,
.u8 => 1,
.i16 => 2,
.i24, .i24_4b => 3,
.i32, .f32 => 4,