1 | //===- DXContainer.cpp - DXContainer object file implementation -----------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "llvm/Object/DXContainer.h" |
10 | #include "llvm/BinaryFormat/DXContainer.h" |
11 | #include "llvm/Object/Error.h" |
12 | #include "llvm/Support/Alignment.h" |
13 | #include "llvm/Support/Endian.h" |
14 | #include "llvm/Support/FormatVariadic.h" |
15 | |
16 | using namespace llvm; |
17 | using namespace llvm::object; |
18 | |
19 | static Error parseFailed(const Twine &Msg) { |
20 | return make_error<GenericBinaryError>(Args: Msg.str(), Args: object_error::parse_failed); |
21 | } |
22 | |
23 | template <typename T> |
24 | static Error readStruct(StringRef Buffer, const char *Src, T &Struct) { |
25 | // Don't read before the beginning or past the end of the file |
26 | if (Src < Buffer.begin() || Src + sizeof(T) > Buffer.end()) |
27 | return parseFailed(Msg: "Reading structure out of file bounds" ); |
28 | |
29 | memcpy(&Struct, Src, sizeof(T)); |
30 | // DXContainer is always little endian |
31 | if (sys::IsBigEndianHost) |
32 | Struct.swapBytes(); |
33 | return Error::success(); |
34 | } |
35 | |
36 | template <typename T> |
37 | static Error readInteger(StringRef Buffer, const char *Src, T &Val, |
38 | Twine Str = "structure" ) { |
39 | static_assert(std::is_integral_v<T>, |
40 | "Cannot call readInteger on non-integral type." ); |
41 | // Don't read before the beginning or past the end of the file |
42 | if (Src < Buffer.begin() || Src + sizeof(T) > Buffer.end()) |
43 | return parseFailed(Msg: Twine("Reading " ) + Str + " out of file bounds" ); |
44 | |
45 | // The DXContainer offset table is comprised of uint32_t values but not padded |
46 | // to a 64-bit boundary. So Parts may start unaligned if there is an odd |
47 | // number of parts and part data itself is not required to be padded. |
48 | if (reinterpret_cast<uintptr_t>(Src) % alignof(T) != 0) |
49 | memcpy(dest: reinterpret_cast<char *>(&Val), src: Src, n: sizeof(T)); |
50 | else |
51 | Val = *reinterpret_cast<const T *>(Src); |
52 | // DXContainer is always little endian |
53 | if (sys::IsBigEndianHost) |
54 | sys::swapByteOrder(Val); |
55 | return Error::success(); |
56 | } |
57 | |
58 | DXContainer::DXContainer(MemoryBufferRef O) : Data(O) {} |
59 | |
60 | Error DXContainer::() { |
61 | return readStruct(Buffer: Data.getBuffer(), Src: Data.getBuffer().data(), Struct&: Header); |
62 | } |
63 | |
64 | Error DXContainer::(StringRef Part) { |
65 | if (DXIL) |
66 | return parseFailed(Msg: "More than one DXIL part is present in the file" ); |
67 | const char *Current = Part.begin(); |
68 | dxbc::ProgramHeader ; |
69 | if (Error Err = readStruct(Buffer: Part, Src: Current, Struct&: Header)) |
70 | return Err; |
71 | Current += offsetof(dxbc::ProgramHeader, Bitcode) + Header.Bitcode.Offset; |
72 | DXIL.emplace(args: std::make_pair(x&: Header, y&: Current)); |
73 | return Error::success(); |
74 | } |
75 | |
76 | Error DXContainer::parseShaderFeatureFlags(StringRef Part) { |
77 | if (ShaderFeatureFlags) |
78 | return parseFailed(Msg: "More than one SFI0 part is present in the file" ); |
79 | uint64_t FlagValue = 0; |
80 | if (Error Err = readInteger(Buffer: Part, Src: Part.begin(), Val&: FlagValue)) |
81 | return Err; |
82 | ShaderFeatureFlags = FlagValue; |
83 | return Error::success(); |
84 | } |
85 | |
86 | Error DXContainer::parseHash(StringRef Part) { |
87 | if (Hash) |
88 | return parseFailed(Msg: "More than one HASH part is present in the file" ); |
89 | dxbc::ShaderHash ReadHash; |
90 | if (Error Err = readStruct(Buffer: Part, Src: Part.begin(), Struct&: ReadHash)) |
91 | return Err; |
92 | Hash = ReadHash; |
93 | return Error::success(); |
94 | } |
95 | |
96 | Error DXContainer::parseRootSignature(StringRef Part) { |
97 | if (RootSignature) |
98 | return parseFailed(Msg: "More than one RTS0 part is present in the file" ); |
99 | RootSignature = DirectX::RootSignature(Part); |
100 | if (Error Err = RootSignature->parse()) |
101 | return Err; |
102 | return Error::success(); |
103 | } |
104 | |
105 | Error DXContainer::parsePSVInfo(StringRef Part) { |
106 | if (PSVInfo) |
107 | return parseFailed(Msg: "More than one PSV0 part is present in the file" ); |
108 | PSVInfo = DirectX::PSVRuntimeInfo(Part); |
109 | // Parsing the PSVRuntime info occurs late because we need to read data from |
110 | // other parts first. |
111 | return Error::success(); |
112 | } |
113 | |
114 | Error DirectX::Signature::initialize(StringRef Part) { |
115 | dxbc::ProgramSignatureHeader ; |
116 | if (Error Err = readStruct(Buffer: Part, Src: Part.begin(), Struct&: SigHeader)) |
117 | return Err; |
118 | size_t Size = sizeof(dxbc::ProgramSignatureElement) * SigHeader.ParamCount; |
119 | |
120 | if (Part.size() < Size + SigHeader.FirstParamOffset) |
121 | return parseFailed(Msg: "Signature parameters extend beyond the part boundary" ); |
122 | |
123 | Parameters.Data = Part.substr(Start: SigHeader.FirstParamOffset, N: Size); |
124 | |
125 | StringTableOffset = SigHeader.FirstParamOffset + static_cast<uint32_t>(Size); |
126 | StringTable = Part.substr(Start: SigHeader.FirstParamOffset + Size); |
127 | |
128 | for (const auto &Param : Parameters) { |
129 | if (Param.NameOffset < StringTableOffset) |
130 | return parseFailed(Msg: "Invalid parameter name offset: name starts before " |
131 | "the first name offset" ); |
132 | if (Param.NameOffset - StringTableOffset > StringTable.size()) |
133 | return parseFailed(Msg: "Invalid parameter name offset: name starts after the " |
134 | "end of the part data" ); |
135 | } |
136 | return Error::success(); |
137 | } |
138 | |
139 | Error DXContainer::parsePartOffsets() { |
140 | uint32_t LastOffset = |
141 | sizeof(dxbc::Header) + (Header.PartCount * sizeof(uint32_t)); |
142 | const char *Current = Data.getBuffer().data() + sizeof(dxbc::Header); |
143 | for (uint32_t Part = 0; Part < Header.PartCount; ++Part) { |
144 | uint32_t PartOffset; |
145 | if (Error Err = readInteger(Buffer: Data.getBuffer(), Src: Current, Val&: PartOffset)) |
146 | return Err; |
147 | if (PartOffset < LastOffset) |
148 | return parseFailed( |
149 | Msg: formatv( |
150 | Fmt: "Part offset for part {0} begins before the previous part ends" , |
151 | Vals&: Part) |
152 | .str()); |
153 | Current += sizeof(uint32_t); |
154 | if (PartOffset >= Data.getBufferSize()) |
155 | return parseFailed(Msg: "Part offset points beyond boundary of the file" ); |
156 | // To prevent overflow when reading the part name, we subtract the part name |
157 | // size from the buffer size, rather than adding to the offset. Since the |
158 | // file header is larger than the part header we can't reach this code |
159 | // unless the buffer is at least as large as a part header, so this |
160 | // subtraction can't underflow. |
161 | if (PartOffset >= Data.getBufferSize() - sizeof(dxbc::PartHeader::Name)) |
162 | return parseFailed(Msg: "File not large enough to read part name" ); |
163 | PartOffsets.push_back(Elt: PartOffset); |
164 | |
165 | dxbc::PartType PT = |
166 | dxbc::parsePartType(S: Data.getBuffer().substr(Start: PartOffset, N: 4)); |
167 | uint32_t PartDataStart = PartOffset + sizeof(dxbc::PartHeader); |
168 | uint32_t PartSize; |
169 | if (Error Err = readInteger(Buffer: Data.getBuffer(), |
170 | Src: Data.getBufferStart() + PartOffset + 4, |
171 | Val&: PartSize, Str: "part size" )) |
172 | return Err; |
173 | StringRef PartData = Data.getBuffer().substr(Start: PartDataStart, N: PartSize); |
174 | LastOffset = PartOffset + PartSize; |
175 | switch (PT) { |
176 | case dxbc::PartType::DXIL: |
177 | if (Error Err = parseDXILHeader(Part: PartData)) |
178 | return Err; |
179 | break; |
180 | case dxbc::PartType::SFI0: |
181 | if (Error Err = parseShaderFeatureFlags(Part: PartData)) |
182 | return Err; |
183 | break; |
184 | case dxbc::PartType::HASH: |
185 | if (Error Err = parseHash(Part: PartData)) |
186 | return Err; |
187 | break; |
188 | case dxbc::PartType::PSV0: |
189 | if (Error Err = parsePSVInfo(Part: PartData)) |
190 | return Err; |
191 | break; |
192 | case dxbc::PartType::ISG1: |
193 | if (Error Err = InputSignature.initialize(Part: PartData)) |
194 | return Err; |
195 | break; |
196 | case dxbc::PartType::OSG1: |
197 | if (Error Err = OutputSignature.initialize(Part: PartData)) |
198 | return Err; |
199 | break; |
200 | case dxbc::PartType::PSG1: |
201 | if (Error Err = PatchConstantSignature.initialize(Part: PartData)) |
202 | return Err; |
203 | break; |
204 | case dxbc::PartType::Unknown: |
205 | break; |
206 | case dxbc::PartType::RTS0: |
207 | if (Error Err = parseRootSignature(Part: PartData)) |
208 | return Err; |
209 | break; |
210 | } |
211 | } |
212 | |
213 | // Fully parsing the PSVInfo requires knowing the shader kind which we read |
214 | // out of the program header in the DXIL part. |
215 | if (PSVInfo) { |
216 | if (!DXIL) |
217 | return parseFailed(Msg: "Cannot fully parse pipeline state validation " |
218 | "information without DXIL part." ); |
219 | if (Error Err = PSVInfo->parse(ShaderKind: DXIL->first.ShaderKind)) |
220 | return Err; |
221 | } |
222 | return Error::success(); |
223 | } |
224 | |
225 | Expected<DXContainer> DXContainer::create(MemoryBufferRef Object) { |
226 | DXContainer Container(Object); |
227 | if (Error Err = Container.parseHeader()) |
228 | return std::move(Err); |
229 | if (Error Err = Container.parsePartOffsets()) |
230 | return std::move(Err); |
231 | return Container; |
232 | } |
233 | |
234 | void DXContainer::PartIterator::updateIteratorImpl(const uint32_t Offset) { |
235 | StringRef Buffer = Container.Data.getBuffer(); |
236 | const char *Current = Buffer.data() + Offset; |
237 | // Offsets are validated during parsing, so all offsets in the container are |
238 | // valid and contain enough readable data to read a header. |
239 | cantFail(Err: readStruct(Buffer, Src: Current, Struct&: IteratorState.Part)); |
240 | IteratorState.Data = |
241 | StringRef(Current + sizeof(dxbc::PartHeader), IteratorState.Part.Size); |
242 | IteratorState.Offset = Offset; |
243 | } |
244 | |
245 | Error DirectX::RootSignature::parse() { |
246 | const char *Current = PartData.begin(); |
247 | |
248 | // Root Signature headers expects 6 integers to be present. |
249 | if (PartData.size() < 6 * sizeof(uint32_t)) |
250 | return parseFailed( |
251 | Msg: "Invalid root signature, insufficient space for header." ); |
252 | |
253 | Version = support::endian::read<uint32_t, llvm::endianness::little>(P: Current); |
254 | Current += sizeof(uint32_t); |
255 | |
256 | NumParameters = |
257 | support::endian::read<uint32_t, llvm::endianness::little>(P: Current); |
258 | Current += sizeof(uint32_t); |
259 | |
260 | RootParametersOffset = |
261 | support::endian::read<uint32_t, llvm::endianness::little>(P: Current); |
262 | Current += sizeof(uint32_t); |
263 | |
264 | NumStaticSamplers = |
265 | support::endian::read<uint32_t, llvm::endianness::little>(P: Current); |
266 | Current += sizeof(uint32_t); |
267 | |
268 | StaticSamplersOffset = |
269 | support::endian::read<uint32_t, llvm::endianness::little>(P: Current); |
270 | Current += sizeof(uint32_t); |
271 | |
272 | Flags = support::endian::read<uint32_t, llvm::endianness::little>(P: Current); |
273 | Current += sizeof(uint32_t); |
274 | |
275 | ParametersHeaders.Data = PartData.substr( |
276 | Start: RootParametersOffset, |
277 | N: NumParameters * sizeof(dxbc::RTS0::v1::RootParameterHeader)); |
278 | |
279 | StaticSamplers.Stride = sizeof(dxbc::RTS0::v1::StaticSampler); |
280 | StaticSamplers.Data = PartData.substr( |
281 | Start: StaticSamplersOffset, |
282 | N: NumStaticSamplers * sizeof(dxbc::RTS0::v1::StaticSampler)); |
283 | |
284 | return Error::success(); |
285 | } |
286 | |
287 | Error DirectX::PSVRuntimeInfo::parse(uint16_t ShaderKind) { |
288 | Triple::EnvironmentType ShaderStage = dxbc::getShaderStage(Kind: ShaderKind); |
289 | |
290 | const char *Current = Data.begin(); |
291 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: Size)) |
292 | return Err; |
293 | Current += sizeof(uint32_t); |
294 | |
295 | StringRef PSVInfoData = Data.substr(Start: sizeof(uint32_t), N: Size); |
296 | |
297 | if (PSVInfoData.size() < Size) |
298 | return parseFailed( |
299 | Msg: "Pipeline state data extends beyond the bounds of the part" ); |
300 | |
301 | using namespace dxbc::PSV; |
302 | |
303 | const uint32_t PSVVersion = getVersion(); |
304 | |
305 | // Detect the PSVVersion by looking at the size field. |
306 | if (PSVVersion == 3) { |
307 | v3::RuntimeInfo Info; |
308 | if (Error Err = readStruct(Buffer: PSVInfoData, Src: Current, Struct&: Info)) |
309 | return Err; |
310 | if (sys::IsBigEndianHost) |
311 | Info.swapBytes(Stage: ShaderStage); |
312 | BasicInfo = Info; |
313 | } else if (PSVVersion == 2) { |
314 | v2::RuntimeInfo Info; |
315 | if (Error Err = readStruct(Buffer: PSVInfoData, Src: Current, Struct&: Info)) |
316 | return Err; |
317 | if (sys::IsBigEndianHost) |
318 | Info.swapBytes(Stage: ShaderStage); |
319 | BasicInfo = Info; |
320 | } else if (PSVVersion == 1) { |
321 | v1::RuntimeInfo Info; |
322 | if (Error Err = readStruct(Buffer: PSVInfoData, Src: Current, Struct&: Info)) |
323 | return Err; |
324 | if (sys::IsBigEndianHost) |
325 | Info.swapBytes(Stage: ShaderStage); |
326 | BasicInfo = Info; |
327 | } else if (PSVVersion == 0) { |
328 | v0::RuntimeInfo Info; |
329 | if (Error Err = readStruct(Buffer: PSVInfoData, Src: Current, Struct&: Info)) |
330 | return Err; |
331 | if (sys::IsBigEndianHost) |
332 | Info.swapBytes(Stage: ShaderStage); |
333 | BasicInfo = Info; |
334 | } else |
335 | return parseFailed( |
336 | Msg: "Cannot read PSV Runtime Info, unsupported PSV version." ); |
337 | |
338 | Current += Size; |
339 | |
340 | uint32_t ResourceCount = 0; |
341 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: ResourceCount)) |
342 | return Err; |
343 | Current += sizeof(uint32_t); |
344 | |
345 | if (ResourceCount > 0) { |
346 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: Resources.Stride)) |
347 | return Err; |
348 | Current += sizeof(uint32_t); |
349 | |
350 | size_t BindingDataSize = Resources.Stride * ResourceCount; |
351 | Resources.Data = Data.substr(Start: Current - Data.begin(), N: BindingDataSize); |
352 | |
353 | if (Resources.Data.size() < BindingDataSize) |
354 | return parseFailed( |
355 | Msg: "Resource binding data extends beyond the bounds of the part" ); |
356 | |
357 | Current += BindingDataSize; |
358 | } else |
359 | Resources.Stride = sizeof(v2::ResourceBindInfo); |
360 | |
361 | // PSV version 0 ends after the resource bindings. |
362 | if (PSVVersion == 0) |
363 | return Error::success(); |
364 | |
365 | // String table starts at a 4-byte offset. |
366 | Current = reinterpret_cast<const char *>( |
367 | alignTo<4>(Value: reinterpret_cast<uintptr_t>(Current))); |
368 | |
369 | uint32_t StringTableSize = 0; |
370 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: StringTableSize)) |
371 | return Err; |
372 | if (StringTableSize % 4 != 0) |
373 | return parseFailed(Msg: "String table misaligned" ); |
374 | Current += sizeof(uint32_t); |
375 | StringTable = StringRef(Current, StringTableSize); |
376 | |
377 | Current += StringTableSize; |
378 | |
379 | uint32_t SemanticIndexTableSize = 0; |
380 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: SemanticIndexTableSize)) |
381 | return Err; |
382 | Current += sizeof(uint32_t); |
383 | |
384 | SemanticIndexTable.reserve(N: SemanticIndexTableSize); |
385 | for (uint32_t I = 0; I < SemanticIndexTableSize; ++I) { |
386 | uint32_t Index = 0; |
387 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: Index)) |
388 | return Err; |
389 | Current += sizeof(uint32_t); |
390 | SemanticIndexTable.push_back(Elt: Index); |
391 | } |
392 | |
393 | uint8_t InputCount = getSigInputCount(); |
394 | uint8_t OutputCount = getSigOutputCount(); |
395 | uint8_t PatchOrPrimCount = getSigPatchOrPrimCount(); |
396 | |
397 | uint32_t ElementCount = InputCount + OutputCount + PatchOrPrimCount; |
398 | |
399 | if (ElementCount > 0) { |
400 | if (Error Err = readInteger(Buffer: Data, Src: Current, Val&: SigInputElements.Stride)) |
401 | return Err; |
402 | Current += sizeof(uint32_t); |
403 | // Assign the stride to all the arrays. |
404 | SigOutputElements.Stride = SigPatchOrPrimElements.Stride = |
405 | SigInputElements.Stride; |
406 | |
407 | if (Data.end() - Current < |
408 | (ptrdiff_t)(ElementCount * SigInputElements.Stride)) |
409 | return parseFailed( |
410 | Msg: "Signature elements extend beyond the size of the part" ); |
411 | |
412 | size_t InputSize = SigInputElements.Stride * InputCount; |
413 | SigInputElements.Data = Data.substr(Start: Current - Data.begin(), N: InputSize); |
414 | Current += InputSize; |
415 | |
416 | size_t OutputSize = SigOutputElements.Stride * OutputCount; |
417 | SigOutputElements.Data = Data.substr(Start: Current - Data.begin(), N: OutputSize); |
418 | Current += OutputSize; |
419 | |
420 | size_t PSize = SigPatchOrPrimElements.Stride * PatchOrPrimCount; |
421 | SigPatchOrPrimElements.Data = Data.substr(Start: Current - Data.begin(), N: PSize); |
422 | Current += PSize; |
423 | } |
424 | |
425 | ArrayRef<uint8_t> OutputVectorCounts = getOutputVectorCounts(); |
426 | uint8_t PatchConstOrPrimVectorCount = getPatchConstOrPrimVectorCount(); |
427 | uint8_t InputVectorCount = getInputVectorCount(); |
428 | |
429 | auto maskDwordSize = [](uint8_t Vector) { |
430 | return (static_cast<uint32_t>(Vector) + 7) >> 3; |
431 | }; |
432 | |
433 | auto mapTableSize = [maskDwordSize](uint8_t X, uint8_t Y) { |
434 | return maskDwordSize(Y) * X * 4; |
435 | }; |
436 | |
437 | if (usesViewID()) { |
438 | for (uint32_t I = 0; I < OutputVectorCounts.size(); ++I) { |
439 | // The vector mask is one bit per component and 4 components per vector. |
440 | // We can compute the number of dwords required by rounding up to the next |
441 | // multiple of 8. |
442 | uint32_t NumDwords = |
443 | maskDwordSize(static_cast<uint32_t>(OutputVectorCounts[I])); |
444 | size_t NumBytes = NumDwords * sizeof(uint32_t); |
445 | OutputVectorMasks[I].Data = Data.substr(Start: Current - Data.begin(), N: NumBytes); |
446 | Current += NumBytes; |
447 | } |
448 | |
449 | if (ShaderStage == Triple::Hull && PatchConstOrPrimVectorCount > 0) { |
450 | uint32_t NumDwords = maskDwordSize(PatchConstOrPrimVectorCount); |
451 | size_t NumBytes = NumDwords * sizeof(uint32_t); |
452 | PatchOrPrimMasks.Data = Data.substr(Start: Current - Data.begin(), N: NumBytes); |
453 | Current += NumBytes; |
454 | } |
455 | } |
456 | |
457 | // Input/Output mapping table |
458 | for (uint32_t I = 0; I < OutputVectorCounts.size(); ++I) { |
459 | if (InputVectorCount == 0 || OutputVectorCounts[I] == 0) |
460 | continue; |
461 | uint32_t NumDwords = mapTableSize(InputVectorCount, OutputVectorCounts[I]); |
462 | size_t NumBytes = NumDwords * sizeof(uint32_t); |
463 | InputOutputMap[I].Data = Data.substr(Start: Current - Data.begin(), N: NumBytes); |
464 | Current += NumBytes; |
465 | } |
466 | |
467 | // Hull shader: Input/Patch mapping table |
468 | if (ShaderStage == Triple::Hull && PatchConstOrPrimVectorCount > 0 && |
469 | InputVectorCount > 0) { |
470 | uint32_t NumDwords = |
471 | mapTableSize(InputVectorCount, PatchConstOrPrimVectorCount); |
472 | size_t NumBytes = NumDwords * sizeof(uint32_t); |
473 | InputPatchMap.Data = Data.substr(Start: Current - Data.begin(), N: NumBytes); |
474 | Current += NumBytes; |
475 | } |
476 | |
477 | // Domain Shader: Patch/Output mapping table |
478 | if (ShaderStage == Triple::Domain && PatchConstOrPrimVectorCount > 0 && |
479 | OutputVectorCounts[0] > 0) { |
480 | uint32_t NumDwords = |
481 | mapTableSize(PatchConstOrPrimVectorCount, OutputVectorCounts[0]); |
482 | size_t NumBytes = NumDwords * sizeof(uint32_t); |
483 | PatchOutputMap.Data = Data.substr(Start: Current - Data.begin(), N: NumBytes); |
484 | Current += NumBytes; |
485 | } |
486 | |
487 | return Error::success(); |
488 | } |
489 | |
490 | uint8_t DirectX::PSVRuntimeInfo::getSigInputCount() const { |
491 | if (const auto *P = std::get_if<dxbc::PSV::v3::RuntimeInfo>(ptr: &BasicInfo)) |
492 | return P->SigInputElements; |
493 | if (const auto *P = std::get_if<dxbc::PSV::v2::RuntimeInfo>(ptr: &BasicInfo)) |
494 | return P->SigInputElements; |
495 | if (const auto *P = std::get_if<dxbc::PSV::v1::RuntimeInfo>(ptr: &BasicInfo)) |
496 | return P->SigInputElements; |
497 | return 0; |
498 | } |
499 | |
500 | uint8_t DirectX::PSVRuntimeInfo::getSigOutputCount() const { |
501 | if (const auto *P = std::get_if<dxbc::PSV::v3::RuntimeInfo>(ptr: &BasicInfo)) |
502 | return P->SigOutputElements; |
503 | if (const auto *P = std::get_if<dxbc::PSV::v2::RuntimeInfo>(ptr: &BasicInfo)) |
504 | return P->SigOutputElements; |
505 | if (const auto *P = std::get_if<dxbc::PSV::v1::RuntimeInfo>(ptr: &BasicInfo)) |
506 | return P->SigOutputElements; |
507 | return 0; |
508 | } |
509 | |
510 | uint8_t DirectX::PSVRuntimeInfo::getSigPatchOrPrimCount() const { |
511 | if (const auto *P = std::get_if<dxbc::PSV::v3::RuntimeInfo>(ptr: &BasicInfo)) |
512 | return P->SigPatchOrPrimElements; |
513 | if (const auto *P = std::get_if<dxbc::PSV::v2::RuntimeInfo>(ptr: &BasicInfo)) |
514 | return P->SigPatchOrPrimElements; |
515 | if (const auto *P = std::get_if<dxbc::PSV::v1::RuntimeInfo>(ptr: &BasicInfo)) |
516 | return P->SigPatchOrPrimElements; |
517 | return 0; |
518 | } |
519 | |