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adding stride to regular arrays
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kbz_8
2026-03-26 01:10:29 +01:00
parent a503f54e43
commit 3c7054fae0
3 changed files with 60 additions and 24 deletions
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src/Value.zig
+46 -19
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@@ -61,7 +61,10 @@ pub const Value = union(Type) {
Vector3u32: Vec3u32,
Vector2u32: Vec2u32,
Matrix: []Self,
Array: []Self,
Array: struct {
stride: SpvWord,
values: []Self,
},
RuntimeArray: struct {
type_word: SpvWord,
stride: SpvWord,
@@ -107,13 +110,14 @@ pub const Value = union(Type) {
pub inline fn getCompositeDataOrNull(self: *const Self) ?[]Self {
return switch (self.*) {
.Structure => |*s| s.values,
.Vector, .Matrix, .Array => |v| v,
.Array => |*a| a.values,
.Vector, .Matrix => |v| v,
else => null,
};
}
pub fn init(allocator: std.mem.Allocator, results: []const Result, target: SpvWord) RuntimeError!Self {
const resolved = results[target].resolveType(results);
pub fn init(allocator: std.mem.Allocator, results: []const Result, target_type: SpvWord) RuntimeError!Self {
const resolved = results[target_type].resolveType(results);
const member_count = resolved.getMemberCounts();
return switch (resolved.variant.?) {
@@ -156,10 +160,15 @@ pub const Value = union(Type) {
break :blk self;
},
.Array => |a| blk: {
var self: Self = .{ .Array = allocator.alloc(Self, member_count) catch return RuntimeError.OutOfMemory };
var self: Self = .{
.Array = .{
.stride = a.stride,
.values = allocator.alloc(Self, member_count) catch return RuntimeError.OutOfMemory,
},
};
errdefer self.deinit(allocator);
for (self.Array) |*value| {
for (self.Array.values) |*value| {
value.* = try Self.init(allocator, results, a.components_type_word);
}
break :blk self;
@@ -213,9 +222,12 @@ pub const Value = union(Type) {
},
.Array => |a| .{
.Array = blk: {
const values = allocator.dupe(Self, a) catch return RuntimeError.OutOfMemory;
for (values, a) |*new_value, value| new_value.* = try value.dupe(allocator);
break :blk values;
const values = allocator.dupe(Self, a.values) catch return RuntimeError.OutOfMemory;
for (values, a.values) |*new_value, value| new_value.* = try value.dupe(allocator);
break :blk .{
.stride = a.stride,
.values = values,
};
},
},
.Structure => |s| .{
@@ -311,16 +323,21 @@ pub const Value = union(Type) {
}
return 2 * 4;
},
.Vector,
.Matrix,
.Array,
=> |values| {
.Vector, .Matrix => |values| {
var offset: usize = 0;
for (values) |v| {
offset += try v.read(output[offset..]);
}
return offset;
},
.Array => |arr| {
var offset: usize = 0;
for (arr.values) |v| {
_ = try v.read(output[offset..]);
offset += arr.stride;
}
return offset;
},
.Structure => |s| {
var offset: usize = 0;
for (s.values, 0..) |v, i| {
@@ -450,16 +467,21 @@ pub const Value = union(Type) {
}
return 2 * 4;
},
.Vector,
.Matrix,
.Array,
=> |*values| {
.Vector, .Matrix => |*values| {
var offset: usize = 0;
for (values.*) |*v| {
offset += try v.write(input[offset..]);
}
return offset;
},
.Array => |*arr| {
var offset: usize = 0;
for (arr.values) |*v| {
_ = try v.write(input[offset..]);
offset += arr.stride;
}
return offset;
},
.Structure => |s| {
var offset: usize = 0;
for (s.values, 0..) |*v, i| {
@@ -488,13 +510,14 @@ pub const Value = union(Type) {
.Vector4f32, .Vector4i32, .Vector4u32 => 4 * 4,
.Vector3f32, .Vector3i32, .Vector3u32 => 3 * 4,
.Vector2f32, .Vector2i32, .Vector2u32 => 2 * 4,
.Vector, .Matrix, .Array => |values| blk: {
.Vector, .Matrix => |values| blk: {
var size: usize = 0;
for (values) |v| {
size += try v.getPlainMemorySize();
}
break :blk size;
},
.Array => |arr| arr.stride * arr.values.len,
.Structure => |s| blk: {
var size: usize = 0;
for (s.values, 0..) |v, i| {
@@ -570,10 +593,14 @@ pub const Value = union(Type) {
pub fn deinit(self: *Self, allocator: std.mem.Allocator) void {
switch (self.*) {
.Vector, .Matrix, .Array => |values| {
.Vector, .Matrix => |values| {
for (values) |*value| value.deinit(allocator);
allocator.free(values);
},
.Array => |arr| {
for (arr.values) |*value| value.deinit(allocator);
allocator.free(arr.values);
},
.Structure => |s| {
for (s.values) |*value| value.deinit(allocator);
allocator.free(s.values);