forked from KhronosGroup/SPIRV-Cross
-
Notifications
You must be signed in to change notification settings - Fork 0
/
spirv_hlsl.hpp
414 lines (348 loc) · 16.5 KB
/
spirv_hlsl.hpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
/*
* Copyright 2016-2021 Robert Konrad
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* At your option, you may choose to accept this material under either:
* 1. The Apache License, Version 2.0, found at <http://www.apache.org/licenses/LICENSE-2.0>, or
* 2. The MIT License, found at <http://opensource.org/licenses/MIT>.
*/
#ifndef SPIRV_HLSL_HPP
#define SPIRV_HLSL_HPP
#include "spirv_glsl.hpp"
#include <utility>
namespace SPIRV_CROSS_NAMESPACE
{
// Interface which remaps vertex inputs to a fixed semantic name to make linking easier.
struct HLSLVertexAttributeRemap
{
uint32_t location;
std::string semantic;
};
// Specifying a root constant (d3d12) or push constant range (vulkan).
//
// `start` and `end` denotes the range of the root constant in bytes.
// Both values need to be multiple of 4.
struct RootConstants
{
uint32_t start;
uint32_t end;
uint32_t binding;
uint32_t space;
};
// For finer control, decorations may be removed from specific resources instead with unset_decoration().
enum HLSLBindingFlagBits
{
HLSL_BINDING_AUTO_NONE_BIT = 0,
// Push constant (root constant) resources will be declared as CBVs (b-space) without a register() declaration.
// A register will be automatically assigned by the D3D compiler, but must therefore be reflected in D3D-land.
// Push constants do not normally have a DecorationBinding set, but if they do, this can be used to ignore it.
HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT = 1 << 0,
// cbuffer resources will be declared as CBVs (b-space) without a register() declaration.
// A register will be automatically assigned, but must be reflected in D3D-land.
HLSL_BINDING_AUTO_CBV_BIT = 1 << 1,
// All SRVs (t-space) will be declared without a register() declaration.
HLSL_BINDING_AUTO_SRV_BIT = 1 << 2,
// All UAVs (u-space) will be declared without a register() declaration.
HLSL_BINDING_AUTO_UAV_BIT = 1 << 3,
// All samplers (s-space) will be declared without a register() declaration.
HLSL_BINDING_AUTO_SAMPLER_BIT = 1 << 4,
// No resources will be declared with register().
HLSL_BINDING_AUTO_ALL = 0x7fffffff
};
using HLSLBindingFlags = uint32_t;
// By matching stage, desc_set and binding for a SPIR-V resource,
// register bindings are set based on whether the HLSL resource is a
// CBV, UAV, SRV or Sampler. A single binding in SPIR-V might contain multiple
// resource types, e.g. COMBINED_IMAGE_SAMPLER, and SRV/Sampler bindings will be used respectively.
// On SM 5.0 and lower, register_space is ignored.
//
// To remap a push constant block which does not have any desc_set/binding associated with it,
// use ResourceBindingPushConstant{DescriptorSet,Binding} as values for desc_set/binding.
// For deeper control of push constants, set_root_constant_layouts() can be used instead.
struct HLSLResourceBinding
{
spv::ExecutionModel stage = spv::ExecutionModelMax;
uint32_t desc_set = 0;
uint32_t binding = 0;
struct Binding
{
uint32_t register_space = 0;
uint32_t register_binding = 0;
} cbv, uav, srv, sampler;
};
enum HLSLAuxBinding
{
HLSL_AUX_BINDING_BASE_VERTEX_INSTANCE = 0
};
class CompilerHLSL : public CompilerGLSL
{
public:
struct Options
{
uint32_t shader_model = 30; // TODO: map ps_4_0_level_9_0,... somehow
// Allows the PointSize builtin in SM 4.0+, and ignores it, as PointSize is not supported in SM 4+.
bool point_size_compat = false;
// Allows the PointCoord builtin, returns float2(0.5, 0.5), as PointCoord is not supported in HLSL.
bool point_coord_compat = false;
// If true, the backend will assume that VertexIndex and InstanceIndex will need to apply
// a base offset, and you will need to fill in a cbuffer with offsets.
// Set to false if you know you will never use base instance or base vertex
// functionality as it might remove an internal cbuffer.
bool support_nonzero_base_vertex_base_instance = false;
// Forces a storage buffer to always be declared as UAV, even if the readonly decoration is used.
// By default, a readonly storage buffer will be declared as ByteAddressBuffer (SRV) instead.
// Alternatively, use set_hlsl_force_storage_buffer_as_uav to specify individually.
bool force_storage_buffer_as_uav = false;
// Forces any storage image type marked as NonWritable to be considered an SRV instead.
// For this to work with function call parameters, NonWritable must be considered to be part of the type system
// so that NonWritable image arguments are also translated to Texture rather than RWTexture.
bool nonwritable_uav_texture_as_srv = false;
// Enables native 16-bit types. Needs SM 6.2.
// Uses half/int16_t/uint16_t instead of min16* types.
// Also adds support for 16-bit load-store from (RW)ByteAddressBuffer.
bool enable_16bit_types = false;
// If matrices are used as IO variables, flatten the attribute declaration to use
// TEXCOORD{N,N+1,N+2,...} rather than TEXCOORDN_{0,1,2,3}.
// If add_vertex_attribute_remap is used and this feature is used,
// the semantic name will be queried once per active location.
bool flatten_matrix_vertex_input_semantics = false;
// Rather than emitting main() for the entry point, use the name in SPIR-V.
bool use_entry_point_name = false;
// Preserve (RW)StructuredBuffer types if the input source was HLSL.
// This relies on UserTypeGOOGLE to encode the buffer type either as "structuredbuffer" or "rwstructuredbuffer"
// whereas the type can be extended with an optional subtype, e.g. "structuredbuffer:int".
bool preserve_structured_buffers = false;
};
explicit CompilerHLSL(std::vector<uint32_t> spirv_)
: CompilerGLSL(std::move(spirv_))
{
}
CompilerHLSL(const uint32_t *ir_, size_t size)
: CompilerGLSL(ir_, size)
{
}
explicit CompilerHLSL(const ParsedIR &ir_)
: CompilerGLSL(ir_)
{
}
explicit CompilerHLSL(ParsedIR &&ir_)
: CompilerGLSL(std::move(ir_))
{
}
const Options &get_hlsl_options() const
{
return hlsl_options;
}
void set_hlsl_options(const Options &opts)
{
hlsl_options = opts;
}
// Optionally specify a custom root constant layout.
//
// Push constants ranges will be split up according to the
// layout specified.
void set_root_constant_layouts(std::vector<RootConstants> layout);
// Compiles and remaps vertex attributes at specific locations to a fixed semantic.
// The default is TEXCOORD# where # denotes location.
// Matrices are unrolled to vectors with notation ${SEMANTIC}_#, where # denotes row.
// $SEMANTIC is either TEXCOORD# or a semantic name specified here.
void add_vertex_attribute_remap(const HLSLVertexAttributeRemap &vertex_attributes);
std::string compile() override;
// This is a special HLSL workaround for the NumWorkGroups builtin.
// This does not exist in HLSL, so the calling application must create a dummy cbuffer in
// which the application will store this builtin.
// The cbuffer layout will be:
// cbuffer SPIRV_Cross_NumWorkgroups : register(b#, space#) { uint3 SPIRV_Cross_NumWorkgroups_count; };
// This must be called before compile().
// The function returns 0 if NumWorkGroups builtin is not statically used in the shader from the current entry point.
// If non-zero, this returns the variable ID of a cbuffer which corresponds to
// the cbuffer declared above. By default, no binding or descriptor set decoration is set,
// so the calling application should declare explicit bindings on this ID before calling compile().
VariableID remap_num_workgroups_builtin();
// Controls how resource bindings are declared in the output HLSL.
void set_resource_binding_flags(HLSLBindingFlags flags);
// resource is a resource binding to indicate the HLSL CBV, SRV, UAV or sampler binding
// to use for a particular SPIR-V description set
// and binding. If resource bindings are provided,
// is_hlsl_resource_binding_used() will return true after calling ::compile() if
// the set/binding combination was used by the HLSL code.
void add_hlsl_resource_binding(const HLSLResourceBinding &resource);
bool is_hlsl_resource_binding_used(spv::ExecutionModel model, uint32_t set, uint32_t binding) const;
// Controls which storage buffer bindings will be forced to be declared as UAVs.
void set_hlsl_force_storage_buffer_as_uav(uint32_t desc_set, uint32_t binding);
// By default, these magic buffers are not assigned a specific binding.
void set_hlsl_aux_buffer_binding(HLSLAuxBinding binding, uint32_t register_index, uint32_t register_space);
void unset_hlsl_aux_buffer_binding(HLSLAuxBinding binding);
bool is_hlsl_aux_buffer_binding_used(HLSLAuxBinding binding) const;
private:
std::string type_to_glsl(const SPIRType &type, uint32_t id = 0) override;
std::string image_type_hlsl(const SPIRType &type, uint32_t id);
std::string image_type_hlsl_modern(const SPIRType &type, uint32_t id);
std::string image_type_hlsl_legacy(const SPIRType &type, uint32_t id);
void emit_function_prototype(SPIRFunction &func, const Bitset &return_flags) override;
void emit_hlsl_entry_point();
void emit_header() override;
void emit_resources();
void emit_interface_block_globally(const SPIRVariable &type);
void emit_interface_block_in_struct(const SPIRVariable &var, std::unordered_set<uint32_t> &active_locations);
void emit_interface_block_member_in_struct(const SPIRVariable &var, uint32_t member_index, uint32_t location,
std::unordered_set<uint32_t> &active_locations);
void emit_builtin_inputs_in_struct();
void emit_builtin_outputs_in_struct();
void emit_builtin_primitive_outputs_in_struct();
void emit_texture_op(const Instruction &i, bool sparse) override;
void emit_instruction(const Instruction &instruction) override;
void emit_glsl_op(uint32_t result_type, uint32_t result_id, uint32_t op, const uint32_t *args,
uint32_t count) override;
void emit_buffer_block(const SPIRVariable &type) override;
void emit_push_constant_block(const SPIRVariable &var) override;
void emit_uniform(const SPIRVariable &var) override;
void emit_modern_uniform(const SPIRVariable &var);
void emit_legacy_uniform(const SPIRVariable &var);
void emit_specialization_constants_and_structs();
void emit_composite_constants();
void emit_fixup() override;
std::string builtin_to_glsl(spv::BuiltIn builtin, spv::StorageClass storage) override;
std::string layout_for_member(const SPIRType &type, uint32_t index) override;
std::string to_interpolation_qualifiers(const Bitset &flags) override;
std::string bitcast_glsl_op(const SPIRType &result_type, const SPIRType &argument_type) override;
bool emit_complex_bitcast(uint32_t result_type, uint32_t id, uint32_t op0) override;
std::string to_func_call_arg(const SPIRFunction::Parameter &arg, uint32_t id) override;
std::string to_sampler_expression(uint32_t id);
std::string to_resource_binding(const SPIRVariable &var);
std::string to_resource_binding_sampler(const SPIRVariable &var);
std::string to_resource_register(HLSLBindingFlagBits flag, char space, uint32_t binding, uint32_t set);
std::string to_initializer_expression(const SPIRVariable &var) override;
void emit_sampled_image_op(uint32_t result_type, uint32_t result_id, uint32_t image_id, uint32_t samp_id) override;
void emit_access_chain(const Instruction &instruction);
void emit_load(const Instruction &instruction);
void read_access_chain(std::string *expr, const std::string &lhs, const SPIRAccessChain &chain);
void read_access_chain_struct(const std::string &lhs, const SPIRAccessChain &chain);
void read_access_chain_array(const std::string &lhs, const SPIRAccessChain &chain);
void write_access_chain(const SPIRAccessChain &chain, uint32_t value, const SmallVector<uint32_t> &composite_chain);
void write_access_chain_struct(const SPIRAccessChain &chain, uint32_t value,
const SmallVector<uint32_t> &composite_chain);
void write_access_chain_array(const SPIRAccessChain &chain, uint32_t value,
const SmallVector<uint32_t> &composite_chain);
std::string write_access_chain_value(uint32_t value, const SmallVector<uint32_t> &composite_chain, bool enclose);
void emit_store(const Instruction &instruction);
void emit_atomic(const uint32_t *ops, uint32_t length, spv::Op op);
void emit_subgroup_op(const Instruction &i) override;
void emit_block_hints(const SPIRBlock &block) override;
void emit_struct_member(const SPIRType &type, uint32_t member_type_id, uint32_t index, const std::string &qualifier,
uint32_t base_offset = 0) override;
void emit_rayquery_function(const char *commited, const char *candidate, const uint32_t *ops);
void emit_mesh_tasks(SPIRBlock &block) override;
const char *to_storage_qualifiers_glsl(const SPIRVariable &var) override;
void replace_illegal_names() override;
SPIRType::BaseType get_builtin_basetype(spv::BuiltIn builtin, SPIRType::BaseType default_type) override;
bool is_hlsl_force_storage_buffer_as_uav(ID id) const;
Options hlsl_options;
// TODO: Refactor this to be more similar to MSL, maybe have some common system in place?
bool requires_op_fmod = false;
bool requires_fp16_packing = false;
bool requires_uint2_packing = false;
bool requires_explicit_fp16_packing = false;
bool requires_unorm8_packing = false;
bool requires_snorm8_packing = false;
bool requires_unorm16_packing = false;
bool requires_snorm16_packing = false;
bool requires_bitfield_insert = false;
bool requires_bitfield_extract = false;
bool requires_inverse_2x2 = false;
bool requires_inverse_3x3 = false;
bool requires_inverse_4x4 = false;
bool requires_scalar_reflect = false;
bool requires_scalar_refract = false;
bool requires_scalar_faceforward = false;
struct TextureSizeVariants
{
// MSVC 2013 workaround.
TextureSizeVariants()
{
srv = 0;
for (auto &unorm : uav)
for (auto &u : unorm)
u = 0;
}
uint64_t srv;
uint64_t uav[3][4];
} required_texture_size_variants;
void require_texture_query_variant(uint32_t var_id);
void emit_texture_size_variants(uint64_t variant_mask, const char *vecsize_qualifier, bool uav,
const char *type_qualifier);
enum TextureQueryVariantDim
{
Query1D = 0,
Query1DArray,
Query2D,
Query2DArray,
Query3D,
QueryBuffer,
QueryCube,
QueryCubeArray,
Query2DMS,
Query2DMSArray,
QueryDimCount
};
enum TextureQueryVariantType
{
QueryTypeFloat = 0,
QueryTypeInt = 16,
QueryTypeUInt = 32,
QueryTypeCount = 3
};
enum BitcastType
{
TypeNormal,
TypePackUint2x32,
TypeUnpackUint64
};
void analyze_meshlet_writes();
void analyze_meshlet_writes(uint32_t func_id, uint32_t id_per_vertex, uint32_t id_per_primitive,
std::unordered_set<uint32_t> &processed_func_ids);
BitcastType get_bitcast_type(uint32_t result_type, uint32_t op0);
void emit_builtin_variables();
bool require_output = false;
bool require_input = false;
SmallVector<HLSLVertexAttributeRemap> remap_vertex_attributes;
uint32_t type_to_consumed_locations(const SPIRType &type) const;
std::string to_semantic(uint32_t location, spv::ExecutionModel em, spv::StorageClass sc);
uint32_t num_workgroups_builtin = 0;
HLSLBindingFlags resource_binding_flags = 0;
// Custom root constant layout, which should be emitted
// when translating push constant ranges.
std::vector<RootConstants> root_constants_layout;
void validate_shader_model();
std::string get_unique_identifier();
uint32_t unique_identifier_count = 0;
std::unordered_map<StageSetBinding, std::pair<HLSLResourceBinding, bool>, InternalHasher> resource_bindings;
void remap_hlsl_resource_binding(HLSLBindingFlagBits type, uint32_t &desc_set, uint32_t &binding);
std::unordered_set<SetBindingPair, InternalHasher> force_uav_buffer_bindings;
struct
{
uint32_t register_index = 0;
uint32_t register_space = 0;
bool explicit_binding = false;
bool used = false;
} base_vertex_info;
// Returns true if the specified ID has a UserTypeGOOGLE decoration for StructuredBuffer or RWStructuredBuffer resources.
bool is_user_type_structured(uint32_t id) const override;
std::vector<TypeID> composite_selection_workaround_types;
std::string get_inner_entry_point_name() const;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif