kbz_8/SPIRV-Interpreter
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fixing bit insert and extract
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kbz_8
2026-03-23 04:59:38 +01:00
parent 2d0d3b40fd
commit d1bf1c23f2
5 changed files with 276 additions and 99 deletions
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56
src/Module.zig
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@@ -167,7 +167,7 @@ pub fn init(allocator: std.mem.Allocator, source: []const SpvWord, options: Modu
_ = self.it.skip(); // Skip schema
try self.pass(allocator); // Setup pass
try self.populateMaps();
try self.applyDecorations();
if (std.process.hasEnvVarConstant("SPIRV_INTERPRETER_DEBUG_LOGS")) {
var capability_set_names: std.ArrayList([]const u8) = .empty;
@@ -254,37 +254,49 @@ fn pass(self: *Self, allocator: std.mem.Allocator) ModuleError!void {
self.needed_runtime_bytes += wrapped_allocator.total_bytes_allocated;
}
fn populateMaps(self: *Self) ModuleError!void {
fn applyDecorations(self: *Self) ModuleError!void {
for (self.results, 0..) |result, id| {
if (result.variant == null or std.meta.activeTag(result.variant.?) != .Variable)
if (result.variant == null)
continue;
var set: ?usize = null;
var binding: ?usize = null;
for (result.decorations.items) |decoration| {
switch (result.variant.?.Variable.storage_class) {
.Input => {
switch (decoration.rtype) {
.BuiltIn => self.builtins.put(
std.enums.fromInt(spv.SpvBuiltIn, decoration.literal_1) orelse return ModuleError.InvalidSpirV,
@intCast(id),
),
.Location => self.input_locations[decoration.literal_1] = @intCast(id),
switch (result.variant.?) {
.Variable => |v| {
switch (v.storage_class) {
.Input => {
switch (decoration.rtype) {
.BuiltIn => self.builtins.put(
std.enums.fromInt(spv.SpvBuiltIn, decoration.literal_1) orelse return ModuleError.InvalidSpirV,
@intCast(id),
),
.Location => self.input_locations[decoration.literal_1] = @intCast(id),
else => {},
}
},
.Output => {
if (decoration.rtype == .Location)
self.output_locations[decoration.literal_1] = @intCast(id);
},
.StorageBuffer, .Uniform, .UniformConstant => {
switch (decoration.rtype) {
.Binding => binding = decoration.literal_1,
.DescriptorSet => set = decoration.literal_1,
else => {},
}
},
else => {},
}
},
.Output => {
if (decoration.rtype == .Location)
self.output_locations[decoration.literal_1] = @intCast(id);
},
.StorageBuffer,
.Uniform,
.UniformConstant,
=> {
switch (decoration.rtype) {
.Binding => binding = decoration.literal_1,
.DescriptorSet => set = decoration.literal_1,
.Type => |t| {
switch (t) {
.Structure => |*s| {
if (decoration.rtype == .Offset) {
s.members_offsets[decoration.index] = decoration.literal_1;
}
},
else => {},
}
},