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adding derivatives support
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kbz_8
2026-06-07 23:27:49 +02:00
parent d66d1dd021
commit 291290f1b8
4 changed files with 246 additions and 21 deletions
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src/Value.zig
+89 -19
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@@ -749,9 +749,41 @@ pub const Value = union(Type) {
return switch (v.*) {
.Int => (try getPrimitiveField(T, bits, @constCast(v))).*,
.Float => (try getPrimitiveField(T, bits, @constCast(v))).*,
.Vector => |lanes| (try getPrimitiveField(T, bits, &lanes[lane_index])).*,
.Vector2f32 => |*vec| switch (lane_index) {
inline 0...1 => |i| blk: {
if (comptime T == .Float and bits == 32) {
break :blk @as(TT, vec[i]);
} else {
return RuntimeError.InvalidSpirV;
}
},
else => return RuntimeError.InvalidSpirV,
},
.Vector3f32 => |*vec| switch (lane_index) {
inline 0...2 => |i| blk: {
if (comptime T == .Float and bits == 32) {
break :blk @as(TT, vec[i]);
} else {
return RuntimeError.InvalidSpirV;
}
},
else => return RuntimeError.InvalidSpirV,
},
.Vector4f32 => |*vec| switch (lane_index) {
inline 0...3 => |i| blk: {
if (comptime T == .Float and bits == 32) {
break :blk @as(TT, vec[i]);
} else {
return RuntimeError.InvalidSpirV;
}
},
else => return RuntimeError.InvalidSpirV,
},
.Vector2i32 => |*vec| switch (lane_index) {
inline 0...1 => |i| blk: {
if (bits == 32) {
@@ -821,9 +853,35 @@ pub const Value = union(Type) {
pub inline fn writeLane(comptime T: PrimitiveType, comptime bits: u32, dst: *Value, lane_index: usize, value: getPrimitiveFieldType(T, bits)) RuntimeError!void {
switch (dst.*) {
.Int => (try getPrimitiveField(T, bits, dst)).* = value,
.Float => (try getPrimitiveField(T, bits, dst)).* = value,
.Vector => |lanes| try setScalarLaneValue(T, bits, &lanes[lane_index], value),
.Vector2f32 => |*vec| switch (lane_index) {
inline 0...1 => |i| if (comptime T == .Float and bits == 32) {
vec[i] = value;
} else {
return RuntimeError.InvalidSpirV;
},
else => return RuntimeError.InvalidSpirV,
},
.Vector3f32 => |*vec| switch (lane_index) {
inline 0...2 => |i| if (comptime T == .Float and bits == 32) {
vec[i] = value;
} else {
return RuntimeError.InvalidSpirV;
},
else => return RuntimeError.InvalidSpirV,
},
.Vector4f32 => |*vec| switch (lane_index) {
inline 0...3 => |i| if (comptime T == .Float and bits == 32) {
vec[i] = value;
} else {
return RuntimeError.InvalidSpirV;
},
else => return RuntimeError.InvalidSpirV,
},
.Vector2i32 => |*vec| switch (lane_index) {
inline 0...1 => |i| if (bits == 32) {
vec[i] = @bitCast(value);
@@ -881,27 +939,39 @@ pub const Value = union(Type) {
fn setScalarLaneValue(comptime value_type: PrimitiveType, comptime bits: u32, dst: *Value, v: getPrimitiveFieldType(value_type, bits)) RuntimeError!void {
switch (bits) {
inline 8, 16, 32, 64 => {
dst.* = .{ .Int = .{
.bit_count = bits,
.is_signed = if (value_type == .SInt) true else false,
.value = switch (value_type) {
.SInt => switch (bits) {
8 => .{ .sint8 = v },
16 => .{ .sint16 = v },
32 => .{ .sint32 = v },
64 => .{ .sint64 = v },
dst.* = switch (value_type) {
.Float => .{ .Float = .{
.bit_count = bits,
.value = switch (bits) {
16 => .{ .float16 = v },
32 => .{ .float32 = v },
64 => .{ .float64 = v },
else => return RuntimeError.InvalidSpirV,
},
} },
.SInt, .UInt => .{ .Int = .{
.bit_count = bits,
.is_signed = if (value_type == .SInt) true else false,
.value = switch (value_type) {
.SInt => switch (bits) {
8 => .{ .sint8 = v },
16 => .{ .sint16 = v },
32 => .{ .sint32 = v },
64 => .{ .sint64 = v },
else => unreachable,
},
.UInt => switch (bits) {
8 => .{ .uint8 = v },
16 => .{ .uint16 = v },
32 => .{ .uint32 = v },
64 => .{ .uint64 = v },
else => unreachable,
},
else => unreachable,
},
.UInt => switch (bits) {
8 => .{ .uint8 = v },
16 => .{ .uint16 = v },
32 => .{ .uint32 = v },
64 => .{ .uint64 = v },
else => unreachable,
},
else => return RuntimeError.InvalidSpirV,
},
} };
} },
else => return RuntimeError.InvalidSpirV,
};
},
else => return RuntimeError.InvalidSpirV,
}