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Deps: Purge SPIRV-Cross from tree

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Stenzek 2024-04-14 16:25:26 +10:00
parent 5f915e1cbe
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30 changed files with 1 additions and 62621 deletions
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1
dep/reshadefx/CMakeLists.txt
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@ -21,7 +21,6 @@ add_library(reshadefx
target_include_directories(reshadefx PRIVATE target_include_directories(reshadefx PRIVATE
"${CMAKE_CURRENT_SOURCE_DIR}/include" "${CMAKE_CURRENT_SOURCE_DIR}/include"
"${CMAKE_CURRENT_SOURCE_DIR}/src" "${CMAKE_CURRENT_SOURCE_DIR}/src"
"${CMAKE_CURRENT_SOURCE_DIR}/../spirv-cross/include/spirv-cross" # SPIR-V
) )
target_include_directories(reshadefx INTERFACE target_include_directories(reshadefx INTERFACE
"${CMAKE_CURRENT_SOURCE_DIR}/include" "${CMAKE_CURRENT_SOURCE_DIR}/include"

0
dep/spirv-cross/include/spirv-cross/GLSL.std.450.h → dep/reshadefx/include/GLSL.std.450.h
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0
dep/spirv-cross/include/spirv-cross/spirv.hpp → dep/reshadefx/include/spirv.hpp
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2
dep/reshadefx/reshadefx.vcxproj
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@ -32,7 +32,7 @@
<ItemDefinitionGroup> <ItemDefinitionGroup>
<ClCompile> <ClCompile>
<WarningLevel>TurnOffAllWarnings</WarningLevel> <WarningLevel>TurnOffAllWarnings</WarningLevel>
<AdditionalIncludeDirectories>$(ProjectDir)src;$(ProjectDir)include;$(ProjectDir)..\spirv-cross\include\spirv-cross;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories> <AdditionalIncludeDirectories>$(ProjectDir)src;$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<LanguageStandard>stdcpp17</LanguageStandard> <LanguageStandard>stdcpp17</LanguageStandard>
</ClCompile> </ClCompile>
</ItemDefinitionGroup> </ItemDefinitionGroup>

35
dep/spirv-cross/CMakeLists.txt
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@ -1,35 +0,0 @@
set(SRCS
include/spirv-cross/GLSL.std.450.h
include/spirv-cross/spirv.h
include/spirv-cross/spirv.hpp
include/spirv-cross/spirv_cfg.hpp
include/spirv-cross/spirv_common.hpp
include/spirv-cross/spirv_cpp.hpp
include/spirv-cross/spirv_cross.hpp
include/spirv-cross/spirv_cross_containers.hpp
include/spirv-cross/spirv_cross_error_handling.hpp
include/spirv-cross/spirv_cross_parsed_ir.hpp
include/spirv-cross/spirv_cross_util.hpp
include/spirv-cross/spirv_glsl.hpp
include/spirv-cross/spirv_hlsl.hpp
include/spirv-cross/spirv_msl.hpp
include/spirv-cross/spirv_parser.hpp
include/spirv-cross/spirv_reflect.hpp
src/spirv_cfg.cpp
src/spirv_cpp.cpp
src/spirv_cross.cpp
src/spirv_cross_parsed_ir.cpp
src/spirv_cross_util.cpp
src/spirv_glsl.cpp
src/spirv_hlsl.cpp
src/spirv_msl.cpp
src/spirv_parser.cpp
src/spirv_reflect.cpp
)
add_library(spirv-cross ${SRCS})
target_include_directories(spirv-cross PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/include/spirv-cross")
target_include_directories(spirv-cross PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
target_compile_definitions(spirv-cross PUBLIC SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS)

202
dep/spirv-cross/LICENSE
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@ -1,202 +0,0 @@
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2568
dep/spirv-cross/include/spirv-cross/spirv.h
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168
dep/spirv-cross/include/spirv-cross/spirv_cfg.hpp
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@ -1,168 +0,0 @@
/*
* Copyright 2016-2021 Arm Limited
* 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_CROSS_CFG_HPP
#define SPIRV_CROSS_CFG_HPP
#include "spirv_common.hpp"
#include <assert.h>
namespace SPIRV_CROSS_NAMESPACE
{
class Compiler;
class CFG
{
public:
CFG(Compiler &compiler, const SPIRFunction &function);
Compiler &get_compiler()
{
return compiler;
}
const Compiler &get_compiler() const
{
return compiler;
}
const SPIRFunction &get_function() const
{
return func;
}
uint32_t get_immediate_dominator(uint32_t block) const
{
auto itr = immediate_dominators.find(block);
if (itr != std::end(immediate_dominators))
return itr->second;
else
return 0;
}
bool is_reachable(uint32_t block) const
{
return visit_order.count(block) != 0;
}
uint32_t get_visit_order(uint32_t block) const
{
auto itr = visit_order.find(block);
assert(itr != std::end(visit_order));
int v = itr->second.get();
assert(v > 0);
return uint32_t(v);
}
uint32_t find_common_dominator(uint32_t a, uint32_t b) const;
const SmallVector<uint32_t> &get_preceding_edges(uint32_t block) const
{
auto itr = preceding_edges.find(block);
if (itr != std::end(preceding_edges))
return itr->second;
else
return empty_vector;
}
const SmallVector<uint32_t> &get_succeeding_edges(uint32_t block) const
{
auto itr = succeeding_edges.find(block);
if (itr != std::end(succeeding_edges))
return itr->second;
else
return empty_vector;
}
template <typename Op>
void walk_from(std::unordered_set<uint32_t> &seen_blocks, uint32_t block, const Op &op) const
{
if (seen_blocks.count(block))
return;
seen_blocks.insert(block);
if (op(block))
{
for (auto b : get_succeeding_edges(block))
walk_from(seen_blocks, b, op);
}
}
uint32_t find_loop_dominator(uint32_t block) const;
bool node_terminates_control_flow_in_sub_graph(BlockID from, BlockID to) const;
private:
struct VisitOrder
{
int &get()
{
return v;
}
const int &get() const
{
return v;
}
int v = -1;
};
Compiler &compiler;
const SPIRFunction &func;
std::unordered_map<uint32_t, SmallVector<uint32_t>> preceding_edges;
std::unordered_map<uint32_t, SmallVector<uint32_t>> succeeding_edges;
std::unordered_map<uint32_t, uint32_t> immediate_dominators;
std::unordered_map<uint32_t, VisitOrder> visit_order;
SmallVector<uint32_t> post_order;
SmallVector<uint32_t> empty_vector;
void add_branch(uint32_t from, uint32_t to);
void build_post_order_visit_order();
void build_immediate_dominators();
bool post_order_visit(uint32_t block);
uint32_t visit_count = 0;
bool is_back_edge(uint32_t to) const;
bool has_visited_forward_edge(uint32_t to) const;
};
class DominatorBuilder
{
public:
DominatorBuilder(const CFG &cfg);
void add_block(uint32_t block);
uint32_t get_dominator() const
{
return dominator;
}
void lift_continue_block_dominator();
private:
const CFG &cfg;
uint32_t dominator = 0;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

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dep/spirv-cross/include/spirv-cross/spirv_common.hpp
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dep/spirv-cross/include/spirv-cross/spirv_cpp.hpp
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@ -1,93 +0,0 @@
/*
* Copyright 2015-2021 Arm Limited
* 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_CROSS_CPP_HPP
#define SPIRV_CROSS_CPP_HPP
#include "spirv_glsl.hpp"
#include <utility>
namespace SPIRV_CROSS_NAMESPACE
{
class CompilerCPP : public CompilerGLSL
{
public:
explicit CompilerCPP(std::vector<uint32_t> spirv_)
: CompilerGLSL(std::move(spirv_))
{
}
CompilerCPP(const uint32_t *ir_, size_t word_count)
: CompilerGLSL(ir_, word_count)
{
}
explicit CompilerCPP(const ParsedIR &ir_)
: CompilerGLSL(ir_)
{
}
explicit CompilerCPP(ParsedIR &&ir_)
: CompilerGLSL(std::move(ir_))
{
}
std::string compile() override;
// Sets a custom symbol name that can override
// spirv_cross_get_interface.
//
// Useful when several shader interfaces are linked
// statically into the same binary.
void set_interface_name(std::string name)
{
interface_name = std::move(name);
}
private:
void emit_header() override;
void emit_c_linkage();
void emit_function_prototype(SPIRFunction &func, const Bitset &return_flags) override;
void emit_resources();
void emit_buffer_block(const SPIRVariable &type) override;
void emit_push_constant_block(const SPIRVariable &var) override;
void emit_interface_block(const SPIRVariable &type);
void emit_block_chain(SPIRBlock &block);
void emit_uniform(const SPIRVariable &var) override;
void emit_shared(const SPIRVariable &var);
void emit_block_struct(SPIRType &type);
std::string variable_decl(const SPIRType &type, const std::string &name, uint32_t id) override;
std::string argument_decl(const SPIRFunction::Parameter &arg);
SmallVector<std::string> resource_registrations;
std::string impl_type;
std::string resource_type;
uint32_t shared_counter = 0;
std::string interface_name;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

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dep/spirv-cross/include/spirv-cross/spirv_cross.hpp
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dep/spirv-cross/include/spirv-cross/spirv_cross_containers.hpp
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/*
* Copyright 2019-2021 Hans-Kristian Arntzen
* 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_CROSS_CONTAINERS_HPP
#define SPIRV_CROSS_CONTAINERS_HPP
#include "spirv_cross_error_handling.hpp"
#include <algorithm>
#include <exception>
#include <functional>
#include <iterator>
#include <limits>
#include <memory>
#include <stack>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#ifdef SPIRV_CROSS_NAMESPACE_OVERRIDE
#define SPIRV_CROSS_NAMESPACE SPIRV_CROSS_NAMESPACE_OVERRIDE
#else
#define SPIRV_CROSS_NAMESPACE spirv_cross
#endif
namespace SPIRV_CROSS_NAMESPACE
{
#ifndef SPIRV_CROSS_FORCE_STL_TYPES
// std::aligned_storage does not support size == 0, so roll our own.
template <typename T, size_t N>
class AlignedBuffer
{
public:
T *data()
{
#if defined(_MSC_VER) && _MSC_VER < 1900
// MSVC 2013 workarounds, sigh ...
// Only use this workaround on MSVC 2013 due to some confusion around default initialized unions.
// Spec seems to suggest the memory will be zero-initialized, which is *not* what we want.
return reinterpret_cast<T *>(u.aligned_char);
#else
return reinterpret_cast<T *>(aligned_char);
#endif
}
private:
#if defined(_MSC_VER) && _MSC_VER < 1900
// MSVC 2013 workarounds, sigh ...
union
{
char aligned_char[sizeof(T) * N];
double dummy_aligner;
} u;
#else
alignas(T) char aligned_char[sizeof(T) * N];
#endif
};
template <typename T>
class AlignedBuffer<T, 0>
{
public:
T *data()
{
return nullptr;
}
};
// An immutable version of SmallVector which erases type information about storage.
template <typename T>
class VectorView
{
public:
T &operator[](size_t i) SPIRV_CROSS_NOEXCEPT
{
return ptr[i];
}
const T &operator[](size_t i) const SPIRV_CROSS_NOEXCEPT
{
return ptr[i];
}
bool empty() const SPIRV_CROSS_NOEXCEPT
{
return buffer_size == 0;
}
size_t size() const SPIRV_CROSS_NOEXCEPT
{
return buffer_size;
}
T *data() SPIRV_CROSS_NOEXCEPT
{
return ptr;
}
const T *data() const SPIRV_CROSS_NOEXCEPT
{
return ptr;
}
T *begin() SPIRV_CROSS_NOEXCEPT
{
return ptr;
}
T *end() SPIRV_CROSS_NOEXCEPT
{
return ptr + buffer_size;
}
const T *begin() const SPIRV_CROSS_NOEXCEPT
{
return ptr;
}
const T *end() const SPIRV_CROSS_NOEXCEPT
{
return ptr + buffer_size;
}
T &front() SPIRV_CROSS_NOEXCEPT
{
return ptr[0];
}
const T &front() const SPIRV_CROSS_NOEXCEPT
{
return ptr[0];
}
T &back() SPIRV_CROSS_NOEXCEPT
{
return ptr[buffer_size - 1];
}
const T &back() const SPIRV_CROSS_NOEXCEPT
{
return ptr[buffer_size - 1];
}
// Makes it easier to consume SmallVector.
#if defined(_MSC_VER) && _MSC_VER < 1900
explicit operator std::vector<T>() const
{
// Another MSVC 2013 workaround. It does not understand lvalue/rvalue qualified operations.
return std::vector<T>(ptr, ptr + buffer_size);
}
#else
// Makes it easier to consume SmallVector.
explicit operator std::vector<T>() const &
{
return std::vector<T>(ptr, ptr + buffer_size);
}
// If we are converting as an r-value, we can pilfer our elements.
explicit operator std::vector<T>() &&
{
return std::vector<T>(std::make_move_iterator(ptr), std::make_move_iterator(ptr + buffer_size));
}
#endif
// Avoid sliced copies. Base class should only be read as a reference.
VectorView(const VectorView &) = delete;
void operator=(const VectorView &) = delete;
protected:
VectorView() = default;
T *ptr = nullptr;
size_t buffer_size = 0;
};
// Simple vector which supports up to N elements inline, without malloc/free.
// We use a lot of throwaway vectors all over the place which triggers allocations.
// This class only implements the subset of std::vector we need in SPIRV-Cross.
// It is *NOT* a drop-in replacement in general projects.
template <typename T, size_t N = 8>
class SmallVector : public VectorView<T>
{
public:
SmallVector() SPIRV_CROSS_NOEXCEPT
{
this->ptr = stack_storage.data();
buffer_capacity = N;
}
template <typename U>
SmallVector(const U *arg_list_begin, const U *arg_list_end) SPIRV_CROSS_NOEXCEPT : SmallVector()
{
auto count = size_t(arg_list_end - arg_list_begin);
reserve(count);
for (size_t i = 0; i < count; i++, arg_list_begin++)
new (&this->ptr[i]) T(*arg_list_begin);
this->buffer_size = count;
}
template <typename U>
SmallVector(std::initializer_list<U> init) SPIRV_CROSS_NOEXCEPT : SmallVector(init.begin(), init.end())
{
}
template <typename U, size_t M>
explicit SmallVector(const U (&init)[M]) SPIRV_CROSS_NOEXCEPT : SmallVector(init, init + M)
{
}
SmallVector(SmallVector &&other) SPIRV_CROSS_NOEXCEPT : SmallVector()
{
*this = std::move(other);
}
SmallVector &operator=(SmallVector &&other) SPIRV_CROSS_NOEXCEPT
{
clear();
if (other.ptr != other.stack_storage.data())
{
// Pilfer allocated pointer.
if (this->ptr != stack_storage.data())
free(this->ptr);
this->ptr = other.ptr;
this->buffer_size = other.buffer_size;
buffer_capacity = other.buffer_capacity;
other.ptr = nullptr;
other.buffer_size = 0;
other.buffer_capacity = 0;
}
else
{
// Need to move the stack contents individually.
reserve(other.buffer_size);
for (size_t i = 0; i < other.buffer_size; i++)
{
new (&this->ptr[i]) T(std::move(other.ptr[i]));
other.ptr[i].~T();
}
this->buffer_size = other.buffer_size;
other.buffer_size = 0;
}
return *this;
}
SmallVector(const SmallVector &other) SPIRV_CROSS_NOEXCEPT : SmallVector()
{
*this = other;
}
SmallVector &operator=(const SmallVector &other) SPIRV_CROSS_NOEXCEPT
{
if (this == &other)
return *this;
clear();
reserve(other.buffer_size);
for (size_t i = 0; i < other.buffer_size; i++)
new (&this->ptr[i]) T(other.ptr[i]);
this->buffer_size = other.buffer_size;
return *this;
}
explicit SmallVector(size_t count) SPIRV_CROSS_NOEXCEPT : SmallVector()
{
resize(count);
}
~SmallVector()
{
clear();
if (this->ptr != stack_storage.data())
free(this->ptr);
}
void clear() SPIRV_CROSS_NOEXCEPT
{
for (size_t i = 0; i < this->buffer_size; i++)
this->ptr[i].~T();
this->buffer_size = 0;
}
void push_back(const T &t) SPIRV_CROSS_NOEXCEPT
{
reserve(this->buffer_size + 1);
new (&this->ptr[this->buffer_size]) T(t);
this->buffer_size++;
}
void push_back(T &&t) SPIRV_CROSS_NOEXCEPT
{
reserve(this->buffer_size + 1);
new (&this->ptr[this->buffer_size]) T(std::move(t));
this->buffer_size++;
}
void pop_back() SPIRV_CROSS_NOEXCEPT
{
// Work around false positive warning on GCC 8.3.
// Calling pop_back on empty vector is undefined.
if (!this->empty())
resize(this->buffer_size - 1);
}
template <typename... Ts>
void emplace_back(Ts &&... ts) SPIRV_CROSS_NOEXCEPT
{
reserve(this->buffer_size + 1);
new (&this->ptr[this->buffer_size]) T(std::forward<Ts>(ts)...);
this->buffer_size++;
}
void reserve(size_t count) SPIRV_CROSS_NOEXCEPT
{
if ((count > (std::numeric_limits<size_t>::max)() / sizeof(T)) ||
(count > (std::numeric_limits<size_t>::max)() / 2))
{
// Only way this should ever happen is with garbage input, terminate.
std::terminate();
}
if (count > buffer_capacity)
{
size_t target_capacity = buffer_capacity;
if (target_capacity == 0)
target_capacity = 1;
// Weird parens works around macro issues on Windows if NOMINMAX is not used.
target_capacity = (std::max)(target_capacity, N);
// Need to ensure there is a POT value of target capacity which is larger than count,
// otherwise this will overflow.
while (target_capacity < count)
target_capacity <<= 1u;
T *new_buffer =
target_capacity > N ? static_cast<T *>(malloc(target_capacity * sizeof(T))) : stack_storage.data();
// If we actually fail this malloc, we are hosed anyways, there is no reason to attempt recovery.
if (!new_buffer)
std::terminate();
// In case for some reason two allocations both come from same stack.
if (new_buffer != this->ptr)
{
// We don't deal with types which can throw in move constructor.
for (size_t i = 0; i < this->buffer_size; i++)
{
new (&new_buffer[i]) T(std::move(this->ptr[i]));
this->ptr[i].~T();
}
}
if (this->ptr != stack_storage.data())
free(this->ptr);
this->ptr = new_buffer;
buffer_capacity = target_capacity;
}
}
void insert(T *itr, const T *insert_begin, const T *insert_end) SPIRV_CROSS_NOEXCEPT
{
auto count = size_t(insert_end - insert_begin);
if (itr == this->end())
{
reserve(this->buffer_size + count);
for (size_t i = 0; i < count; i++, insert_begin++)
new (&this->ptr[this->buffer_size + i]) T(*insert_begin);
this->buffer_size += count;
}
else
{
if (this->buffer_size + count > buffer_capacity)
{
auto target_capacity = this->buffer_size + count;
if (target_capacity == 0)
target_capacity = 1;
if (target_capacity < N)
target_capacity = N;
while (target_capacity < count)
target_capacity <<= 1u;
// Need to allocate new buffer. Move everything to a new buffer.
T *new_buffer =
target_capacity > N ? static_cast<T *>(malloc(target_capacity * sizeof(T))) : stack_storage.data();
// If we actually fail this malloc, we are hosed anyways, there is no reason to attempt recovery.
if (!new_buffer)
std::terminate();
// First, move elements from source buffer to new buffer.
// We don't deal with types which can throw in move constructor.
auto *target_itr = new_buffer;
auto *original_source_itr = this->begin();
if (new_buffer != this->ptr)
{
while (original_source_itr != itr)
{
new (target_itr) T(std::move(*original_source_itr));
original_source_itr->~T();
++original_source_itr;
++target_itr;
}
}
// Copy-construct new elements.
for (auto *source_itr = insert_begin; source_itr != insert_end; ++source_itr, ++target_itr)
new (target_itr) T(*source_itr);
// Move over the other half.
if (new_buffer != this->ptr || insert_begin != insert_end)
{
while (original_source_itr != this->end())
{
new (target_itr) T(std::move(*original_source_itr));
original_source_itr->~T();
++original_source_itr;
++target_itr;
}
}
if (this->ptr != stack_storage.data())
free(this->ptr);
this->ptr = new_buffer;
buffer_capacity = target_capacity;
}
else
{
// Move in place, need to be a bit careful about which elements are constructed and which are not.
// Move the end and construct the new elements.
auto *target_itr = this->end() + count;
auto *source_itr = this->end();
while (target_itr != this->end() && source_itr != itr)
{
--target_itr;
--source_itr;
new (target_itr) T(std::move(*source_itr));
}
// For already constructed elements we can move-assign.
std::move_backward(itr, source_itr, target_itr);
// For the inserts which go to already constructed elements, we can do a plain copy.
while (itr != this->end() && insert_begin != insert_end)
*itr++ = *insert_begin++;
// For inserts into newly allocated memory, we must copy-construct instead.
while (insert_begin != insert_end)
{
new (itr) T(*insert_begin);
++itr;
++insert_begin;
}
}
this->buffer_size += count;
}
}
void insert(T *itr, const T &value) SPIRV_CROSS_NOEXCEPT
{
insert(itr, &value, &value + 1);
}
T *erase(T *itr) SPIRV_CROSS_NOEXCEPT
{
std::move(itr + 1, this->end(), itr);
this->ptr[--this->buffer_size].~T();
return itr;
}
void erase(T *start_erase, T *end_erase) SPIRV_CROSS_NOEXCEPT
{
if (end_erase == this->end())
{
resize(size_t(start_erase - this->begin()));
}
else
{
auto new_size = this->buffer_size - (end_erase - start_erase);
std::move(end_erase, this->end(), start_erase);
resize(new_size);
}
}
void resize(size_t new_size) SPIRV_CROSS_NOEXCEPT
{
if (new_size < this->buffer_size)
{
for (size_t i = new_size; i < this->buffer_size; i++)
this->ptr[i].~T();
}
else if (new_size > this->buffer_size)
{
reserve(new_size);
for (size_t i = this->buffer_size; i < new_size; i++)
new (&this->ptr[i]) T();
}
this->buffer_size = new_size;
}
private:
size_t buffer_capacity = 0;
AlignedBuffer<T, N> stack_storage;
};
// A vector without stack storage.
// Could also be a typedef-ed to std::vector,
// but might as well use the one we have.
template <typename T>
using Vector = SmallVector<T, 0>;
#else // SPIRV_CROSS_FORCE_STL_TYPES
template <typename T, size_t N = 8>
using SmallVector = std::vector<T>;
template <typename T>
using Vector = std::vector<T>;
template <typename T>
using VectorView = std::vector<T>;
#endif // SPIRV_CROSS_FORCE_STL_TYPES
// An object pool which we use for allocating IVariant-derived objects.
// We know we are going to allocate a bunch of objects of each type,
// so amortize the mallocs.
class ObjectPoolBase
{
public:
virtual ~ObjectPoolBase() = default;
virtual void deallocate_opaque(void *ptr) = 0;
};
template <typename T>
class ObjectPool : public ObjectPoolBase
{
public:
explicit ObjectPool(unsigned start_object_count_ = 16)
: start_object_count(start_object_count_)
{
}
template <typename... P>
T *allocate(P &&... p)
{
if (vacants.empty())
{
unsigned num_objects = start_object_count << memory.size();
T *ptr = static_cast<T *>(malloc(num_objects * sizeof(T)));
if (!ptr)
return nullptr;
for (unsigned i = 0; i < num_objects; i++)
vacants.push_back(&ptr[i]);
memory.emplace_back(ptr);
}
T *ptr = vacants.back();
vacants.pop_back();
new (ptr) T(std::forward<P>(p)...);
return ptr;
}
void deallocate(T *ptr)
{
ptr->~T();
vacants.push_back(ptr);
}
void deallocate_opaque(void *ptr) override
{
deallocate(static_cast<T *>(ptr));
}
void clear()
{
vacants.clear();
memory.clear();
}
protected:
Vector<T *> vacants;
struct MallocDeleter
{
void operator()(T *ptr)
{
::free(ptr);
}
};
SmallVector<std::unique_ptr<T, MallocDeleter>> memory;
unsigned start_object_count;
};
template <size_t StackSize = 4096, size_t BlockSize = 4096>
class StringStream
{
public:
StringStream()
{
reset();
}
~StringStream()
{
reset();
}
// Disable copies and moves. Makes it easier to implement, and we don't need it.
StringStream(const StringStream &) = delete;
void operator=(const StringStream &) = delete;
template <typename T, typename std::enable_if<!std::is_floating_point<T>::value, int>::type = 0>
StringStream &operator<<(const T &t)
{
auto s = std::to_string(t);
append(s.data(), s.size());
return *this;
}
// Only overload this to make float/double conversions ambiguous.
StringStream &operator<<(uint32_t v)
{
auto s = std::to_string(v);
append(s.data(), s.size());
return *this;
}
StringStream &operator<<(char c)
{
append(&c, 1);
return *this;
}
StringStream &operator<<(const std::string &s)
{
append(s.data(), s.size());
return *this;
}
StringStream &operator<<(const char *s)
{
append(s, strlen(s));
return *this;
}
template <size_t N>
StringStream &operator<<(const char (&s)[N])
{
append(s, strlen(s));
return *this;
}
std::string str() const
{
std::string ret;
size_t target_size = 0;
for (auto &saved : saved_buffers)
target_size += saved.offset;
target_size += current_buffer.offset;
ret.reserve(target_size);
for (auto &saved : saved_buffers)
ret.insert(ret.end(), saved.buffer, saved.buffer + saved.offset);
ret.insert(ret.end(), current_buffer.buffer, current_buffer.buffer + current_buffer.offset);
return ret;
}
void reset()
{
for (auto &saved : saved_buffers)
if (saved.buffer != stack_buffer)
free(saved.buffer);
if (current_buffer.buffer != stack_buffer)
free(current_buffer.buffer);
saved_buffers.clear();
current_buffer.buffer = stack_buffer;
current_buffer.offset = 0;
current_buffer.size = sizeof(stack_buffer);
}
private:
struct Buffer
{
char *buffer = nullptr;
size_t offset = 0;
size_t size = 0;
};
Buffer current_buffer;
char stack_buffer[StackSize];
SmallVector<Buffer> saved_buffers;
void append(const char *s, size_t len)
{
size_t avail = current_buffer.size - current_buffer.offset;
if (avail < len)
{
if (avail > 0)
{
memcpy(current_buffer.buffer + current_buffer.offset, s, avail);
s += avail;
len -= avail;
current_buffer.offset += avail;
}
saved_buffers.push_back(current_buffer);
size_t target_size = len > BlockSize ? len : BlockSize;
current_buffer.buffer = static_cast<char *>(malloc(target_size));
if (!current_buffer.buffer)
SPIRV_CROSS_THROW("Out of memory.");
memcpy(current_buffer.buffer, s, len);
current_buffer.offset = len;
current_buffer.size = target_size;
}
else
{
memcpy(current_buffer.buffer + current_buffer.offset, s, len);
current_buffer.offset += len;
}
}
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

94
dep/spirv-cross/include/spirv-cross/spirv_cross_error_handling.hpp
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@ -1,94 +0,0 @@
/*
* Copyright 2015-2021 Arm Limited
* 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_CROSS_ERROR_HANDLING
#define SPIRV_CROSS_ERROR_HANDLING
#include <stdio.h>
#include <stdlib.h>
#include <string>
#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
#include <stdexcept>
#endif
#ifdef SPIRV_CROSS_NAMESPACE_OVERRIDE
#define SPIRV_CROSS_NAMESPACE SPIRV_CROSS_NAMESPACE_OVERRIDE
#else
#define SPIRV_CROSS_NAMESPACE spirv_cross
#endif
namespace SPIRV_CROSS_NAMESPACE
{
#ifdef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
#if !defined(_MSC_VER) || defined(__clang__)
[[noreturn]]
#elif defined(_MSC_VER)
__declspec(noreturn)
#endif
inline void
report_and_abort(const std::string &msg)
{
#ifdef NDEBUG
(void)msg;
#else
fprintf(stderr, "There was a compiler error: %s\n", msg.c_str());
#endif
fflush(stderr);
abort();
}
#define SPIRV_CROSS_THROW(x) report_and_abort(x)
#else
class CompilerError : public std::runtime_error
{
public:
explicit CompilerError(const std::string &str)
: std::runtime_error(str)
{
}
};
#define SPIRV_CROSS_THROW(x) throw CompilerError(x)
#endif
// MSVC 2013 does not have noexcept. We need this for Variant to get move constructor to work correctly
// instead of copy constructor.
// MSVC 2013 ignores that move constructors cannot throw in std::vector, so just don't define it.
#if defined(_MSC_VER) && _MSC_VER < 1900
#define SPIRV_CROSS_NOEXCEPT
#else
#define SPIRV_CROSS_NOEXCEPT noexcept
#endif
#if __cplusplus >= 201402l
#define SPIRV_CROSS_DEPRECATED(reason) [[deprecated(reason)]]
#elif defined(__GNUC__)
#define SPIRV_CROSS_DEPRECATED(reason) __attribute__((deprecated))
#elif defined(_MSC_VER)
#define SPIRV_CROSS_DEPRECATED(reason) __declspec(deprecated(reason))
#else
#define SPIRV_CROSS_DEPRECATED(reason)
#endif
} // namespace SPIRV_CROSS_NAMESPACE
#endif

256
dep/spirv-cross/include/spirv-cross/spirv_cross_parsed_ir.hpp
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@ -1,256 +0,0 @@
/*
* Copyright 2018-2021 Arm Limited
* 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_CROSS_PARSED_IR_HPP
#define SPIRV_CROSS_PARSED_IR_HPP
#include "spirv_common.hpp"
#include <stdint.h>
#include <unordered_map>
namespace SPIRV_CROSS_NAMESPACE
{
// This data structure holds all information needed to perform cross-compilation and reflection.
// It is the output of the Parser, but any implementation could create this structure.
// It is intentionally very "open" and struct-like with some helper functions to deal with decorations.
// Parser is the reference implementation of how this data structure should be filled in.
class ParsedIR
{
private:
// This must be destroyed after the "ids" vector.
std::unique_ptr<ObjectPoolGroup> pool_group;
public:
ParsedIR();
// Due to custom allocations from object pools, we cannot use a default copy constructor.
ParsedIR(const ParsedIR &other);
ParsedIR &operator=(const ParsedIR &other);
// Moves are unproblematic, but we need to implement it anyways, since MSVC 2013 does not understand
// how to default-implement these.
ParsedIR(ParsedIR &&other) SPIRV_CROSS_NOEXCEPT;
ParsedIR &operator=(ParsedIR &&other) SPIRV_CROSS_NOEXCEPT;
// Resizes ids, meta and block_meta.
void set_id_bounds(uint32_t bounds);
// The raw SPIR-V, instructions and opcodes refer to this by offset + count.
std::vector<uint32_t> spirv;
// Holds various data structures which inherit from IVariant.
SmallVector<Variant> ids;
// Various meta data for IDs, decorations, names, etc.
std::unordered_map<ID, Meta> meta;
// Holds all IDs which have a certain type.
// This is needed so we can iterate through a specific kind of resource quickly,
// and in-order of module declaration.
SmallVector<ID> ids_for_type[TypeCount];
// Special purpose lists which contain a union of types.
// This is needed so we can declare specialization constants and structs in an interleaved fashion,
// among other things.
// Constants can be undef or of struct type, and struct array sizes can use specialization constants.
SmallVector<ID> ids_for_constant_undef_or_type;
SmallVector<ID> ids_for_constant_or_variable;
// We need to keep track of the width the Ops that contains a type for the
// OpSwitch instruction, since this one doesn't contains the type in the
// instruction itself. And in some case we need to cast the condition to
// wider types. We only need the width to do the branch fixup since the
// type check itself can be done at runtime
std::unordered_map<ID, uint32_t> load_type_width;
// Declared capabilities and extensions in the SPIR-V module.
// Not really used except for reflection at the moment.
SmallVector<spv::Capability> declared_capabilities;
SmallVector<std::string> declared_extensions;
// Meta data about blocks. The cross-compiler needs to query if a block is either of these types.
// It is a bitset as there can be more than one tag per block.
enum BlockMetaFlagBits
{
BLOCK_META_LOOP_HEADER_BIT = 1 << 0,
BLOCK_META_CONTINUE_BIT = 1 << 1,
BLOCK_META_LOOP_MERGE_BIT = 1 << 2,
BLOCK_META_SELECTION_MERGE_BIT = 1 << 3,
BLOCK_META_MULTISELECT_MERGE_BIT = 1 << 4
};
using BlockMetaFlags = uint8_t;
SmallVector<BlockMetaFlags> block_meta;
std::unordered_map<BlockID, BlockID> continue_block_to_loop_header;
// Normally, we'd stick SPIREntryPoint in ids array, but it conflicts with SPIRFunction.
// Entry points can therefore be seen as some sort of meta structure.
std::unordered_map<FunctionID, SPIREntryPoint> entry_points;
FunctionID default_entry_point = 0;
struct Source
{
uint32_t version = 0;
bool es = false;
bool known = false;
bool hlsl = false;
Source() = default;
};
Source source;
spv::AddressingModel addressing_model = spv::AddressingModelMax;
spv::MemoryModel memory_model = spv::MemoryModelMax;
// Decoration handling methods.
// Can be useful for simple "raw" reflection.
// However, most members are here because the Parser needs most of these,
// and might as well just have the whole suite of decoration/name handling in one place.
void set_name(ID id, const std::string &name);
const std::string &get_name(ID id) const;
void set_decoration(ID id, spv::Decoration decoration, uint32_t argument = 0);
void set_decoration_string(ID id, spv::Decoration decoration, const std::string &argument);
bool has_decoration(ID id, spv::Decoration decoration) const;
uint32_t get_decoration(ID id, spv::Decoration decoration) const;
const std::string &get_decoration_string(ID id, spv::Decoration decoration) const;
const Bitset &get_decoration_bitset(ID id) const;
void unset_decoration(ID id, spv::Decoration decoration);
// Decoration handling methods (for members of a struct).
void set_member_name(TypeID id, uint32_t index, const std::string &name);
const std::string &get_member_name(TypeID id, uint32_t index) const;
void set_member_decoration(TypeID id, uint32_t index, spv::Decoration decoration, uint32_t argument = 0);
void set_member_decoration_string(TypeID id, uint32_t index, spv::Decoration decoration,
const std::string &argument);
uint32_t get_member_decoration(TypeID id, uint32_t index, spv::Decoration decoration) const;
const std::string &get_member_decoration_string(TypeID id, uint32_t index, spv::Decoration decoration) const;
bool has_member_decoration(TypeID id, uint32_t index, spv::Decoration decoration) const;
const Bitset &get_member_decoration_bitset(TypeID id, uint32_t index) const;
void unset_member_decoration(TypeID id, uint32_t index, spv::Decoration decoration);
void mark_used_as_array_length(ID id);
uint32_t increase_bound_by(uint32_t count);
Bitset get_buffer_block_flags(const SPIRVariable &var) const;
Bitset get_buffer_block_type_flags(const SPIRType &type) const;
void add_typed_id(Types type, ID id);
void remove_typed_id(Types type, ID id);
class LoopLock
{
public:
explicit LoopLock(uint32_t *counter);
LoopLock(const LoopLock &) = delete;
void operator=(const LoopLock &) = delete;
LoopLock(LoopLock &&other) SPIRV_CROSS_NOEXCEPT;
LoopLock &operator=(LoopLock &&other) SPIRV_CROSS_NOEXCEPT;
~LoopLock();
private:
uint32_t *lock;
};
// This must be held while iterating over a type ID array.
// It is undefined if someone calls set<>() while we're iterating over a data structure, so we must
// make sure that this case is avoided.
// If we have a hard lock, it is an error to call set<>(), and an exception is thrown.
// If we have a soft lock, we silently ignore any additions to the typed arrays.
// This should only be used for physical ID remapping where we need to create an ID, but we will never
// care about iterating over them.
LoopLock create_loop_hard_lock() const;
LoopLock create_loop_soft_lock() const;
template <typename T, typename Op>
void for_each_typed_id(const Op &op)
{
auto loop_lock = create_loop_hard_lock();
for (auto &id : ids_for_type[T::type])
{
if (ids[id].get_type() == static_cast<Types>(T::type))
op(id, get<T>(id));
}
}
template <typename T, typename Op>
void for_each_typed_id(const Op &op) const
{
auto loop_lock = create_loop_hard_lock();
for (auto &id : ids_for_type[T::type])
{
if (ids[id].get_type() == static_cast<Types>(T::type))
op(id, get<T>(id));
}
}
template <typename T>
void reset_all_of_type()
{
reset_all_of_type(static_cast<Types>(T::type));
}
void reset_all_of_type(Types type);
Meta *find_meta(ID id);
const Meta *find_meta(ID id) const;
const std::string &get_empty_string() const
{
return empty_string;
}
void make_constant_null(uint32_t id, uint32_t type, bool add_to_typed_id_set);
void fixup_reserved_names();
static void sanitize_underscores(std::string &str);
static void sanitize_identifier(std::string &str, bool member, bool allow_reserved_prefixes);
static bool is_globally_reserved_identifier(std::string &str, bool allow_reserved_prefixes);
uint32_t get_spirv_version() const;
private:
template <typename T>
T &get(uint32_t id)
{
return variant_get<T>(ids[id]);
}
template <typename T>
const T &get(uint32_t id) const
{
return variant_get<T>(ids[id]);
}
mutable uint32_t loop_iteration_depth_hard = 0;
mutable uint32_t loop_iteration_depth_soft = 0;
std::string empty_string;
Bitset cleared_bitset;
std::unordered_set<uint32_t> meta_needing_name_fixup;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

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/*
* Copyright 2015-2021 Arm Limited
* 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_CROSS_UTIL_HPP
#define SPIRV_CROSS_UTIL_HPP
#include "spirv_cross.hpp"
namespace spirv_cross_util
{
void rename_interface_variable(SPIRV_CROSS_NAMESPACE::Compiler &compiler,
const SPIRV_CROSS_NAMESPACE::SmallVector<SPIRV_CROSS_NAMESPACE::Resource> &resources,
uint32_t location, const std::string &name);
void inherit_combined_sampler_bindings(SPIRV_CROSS_NAMESPACE::Compiler &compiler);
} // namespace spirv_cross_util
#endif

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/*
* 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;
};
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;
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 for BuiltInSampleMask because gl_SampleMask[] is an array in SPIR-V, but SV_Coverage is a scalar in HLSL.
bool builtin_translates_to_nonarray(spv::BuiltIn builtin) const override;
std::vector<TypeID> composite_selection_workaround_types;
std::string get_inner_entry_point_name() const;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

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/*
* Copyright 2018-2021 Arm Limited
* 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_CROSS_PARSER_HPP
#define SPIRV_CROSS_PARSER_HPP
#include "spirv_cross_parsed_ir.hpp"
#include <stdint.h>
namespace SPIRV_CROSS_NAMESPACE
{
class Parser
{
public:
Parser(const uint32_t *spirv_data, size_t word_count);
Parser(std::vector<uint32_t> spirv);
void parse();
ParsedIR &get_parsed_ir()
{
return ir;
}
private:
ParsedIR ir;
SPIRFunction *current_function = nullptr;
SPIRBlock *current_block = nullptr;
// For workarounds.
bool ignore_trailing_block_opcodes = false;
void parse(const Instruction &instr);
const uint32_t *stream(const Instruction &instr) const;
template <typename T, typename... P>
T &set(uint32_t id, P &&... args)
{
ir.add_typed_id(static_cast<Types>(T::type), id);
auto &var = variant_set<T>(ir.ids[id], std::forward<P>(args)...);
var.self = id;
return var;
}
template <typename T>
T &get(uint32_t id)
{
return variant_get<T>(ir.ids[id]);
}
template <typename T>
T *maybe_get(uint32_t id)
{
if (ir.ids[id].get_type() == static_cast<Types>(T::type))
return &get<T>(id);
else
return nullptr;
}
template <typename T>
const T &get(uint32_t id) const
{
return variant_get<T>(ir.ids[id]);
}
template <typename T>
const T *maybe_get(uint32_t id) const
{
if (ir.ids[id].get_type() == T::type)
return &get<T>(id);
else
return nullptr;
}
// This must be an ordered data structure so we always pick the same type aliases.
SmallVector<uint32_t> global_struct_cache;
SmallVector<std::pair<uint32_t, uint32_t>> forward_pointer_fixups;
bool types_are_logically_equivalent(const SPIRType &a, const SPIRType &b) const;
bool variable_storage_is_aliased(const SPIRVariable &v) const;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

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/*
* Copyright 2018-2021 Bradley Austin Davis
* 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_CROSS_REFLECT_HPP
#define SPIRV_CROSS_REFLECT_HPP
#include "spirv_glsl.hpp"
#include <utility>
namespace simple_json
{
class Stream;
}
namespace SPIRV_CROSS_NAMESPACE
{
class CompilerReflection : public CompilerGLSL
{
using Parent = CompilerGLSL;
public:
explicit CompilerReflection(std::vector<uint32_t> spirv_)
: Parent(std::move(spirv_))
{
options.vulkan_semantics = true;
}
CompilerReflection(const uint32_t *ir_, size_t word_count)
: Parent(ir_, word_count)
{
options.vulkan_semantics = true;
}
explicit CompilerReflection(const ParsedIR &ir_)
: CompilerGLSL(ir_)
{
options.vulkan_semantics = true;
}
explicit CompilerReflection(ParsedIR &&ir_)
: CompilerGLSL(std::move(ir_))
{
options.vulkan_semantics = true;
}
void set_format(const std::string &format);
std::string compile() override;
private:
static std::string execution_model_to_str(spv::ExecutionModel model);
void emit_entry_points();
void emit_types();
void emit_resources();
void emit_specialization_constants();
void emit_type(uint32_t type_id, bool &emitted_open_tag);
void emit_type_member(const SPIRType &type, uint32_t index);
void emit_type_member_qualifiers(const SPIRType &type, uint32_t index);
void emit_type_array(const SPIRType &type);
void emit_resources(const char *tag, const SmallVector<Resource> &resources);
bool type_is_reference(const SPIRType &type) const;
std::string to_member_name(const SPIRType &type, uint32_t index) const;
std::shared_ptr<simple_json::Stream> json_stream;
};
} // namespace SPIRV_CROSS_NAMESPACE
#endif

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/*
* Copyright 2016-2021 Arm Limited
* 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>.
*/
#include "spirv_cfg.hpp"
#include "spirv_cross.hpp"
#include <algorithm>
#include <assert.h>
using namespace std;
namespace SPIRV_CROSS_NAMESPACE
{
CFG::CFG(Compiler &compiler_, const SPIRFunction &func_)
: compiler(compiler_)
, func(func_)
{
build_post_order_visit_order();
build_immediate_dominators();
}
uint32_t CFG::find_common_dominator(uint32_t a, uint32_t b) const
{
while (a != b)
{
if (get_visit_order(a) < get_visit_order(b))
a = get_immediate_dominator(a);
else
b = get_immediate_dominator(b);
}
return a;
}
void CFG::build_immediate_dominators()
{
// Traverse the post-order in reverse and build up the immediate dominator tree.
immediate_dominators.clear();
immediate_dominators[func.entry_block] = func.entry_block;
for (auto i = post_order.size(); i; i--)
{
uint32_t block = post_order[i - 1];
auto &pred = preceding_edges[block];
if (pred.empty()) // This is for the entry block, but we've already set up the dominators.
continue;
for (auto &edge : pred)
{
if (immediate_dominators[block])
{
assert(immediate_dominators[edge]);
immediate_dominators[block] = find_common_dominator(immediate_dominators[block], edge);
}
else
immediate_dominators[block] = edge;
}
}
}
bool CFG::is_back_edge(uint32_t to) const
{
// We have a back edge if the visit order is set with the temporary magic value 0.
// Crossing edges will have already been recorded with a visit order.
auto itr = visit_order.find(to);
return itr != end(visit_order) && itr->second.get() == 0;
}
bool CFG::has_visited_forward_edge(uint32_t to) const
{
// If > 0, we have visited the edge already, and this is not a back edge branch.
auto itr = visit_order.find(to);
return itr != end(visit_order) && itr->second.get() > 0;
}
bool CFG::post_order_visit(uint32_t block_id)
{
// If we have already branched to this block (back edge), stop recursion.
// If our branches are back-edges, we do not record them.
// We have to record crossing edges however.
if (has_visited_forward_edge(block_id))
return true;
else if (is_back_edge(block_id))
return false;
// Block back-edges from recursively revisiting ourselves.
visit_order[block_id].get() = 0;
auto &block = compiler.get<SPIRBlock>(block_id);
// If this is a loop header, add an implied branch to the merge target.
// This is needed to avoid annoying cases with do { ... } while(false) loops often generated by inliners.
// To the CFG, this is linear control flow, but we risk picking the do/while scope as our dominating block.
// This makes sure that if we are accessing a variable outside the do/while, we choose the loop header as dominator.
// We could use has_visited_forward_edge, but this break code-gen where the merge block is unreachable in the CFG.
// Make a point out of visiting merge target first. This is to make sure that post visit order outside the loop
// is lower than inside the loop, which is going to be key for some traversal algorithms like post-dominance analysis.
// For selection constructs true/false blocks will end up visiting the merge block directly and it works out fine,
// but for loops, only the header might end up actually branching to merge block.
if (block.merge == SPIRBlock::MergeLoop && post_order_visit(block.merge_block))
add_branch(block_id, block.merge_block);
// First visit our branch targets.
switch (block.terminator)
{
case SPIRBlock::Direct:
if (post_order_visit(block.next_block))
add_branch(block_id, block.next_block);
break;
case SPIRBlock::Select:
if (post_order_visit(block.true_block))
add_branch(block_id, block.true_block);
if (post_order_visit(block.false_block))
add_branch(block_id, block.false_block);
break;
case SPIRBlock::MultiSelect:
{
const auto &cases = compiler.get_case_list(block);
for (const auto &target : cases)
{
if (post_order_visit(target.block))
add_branch(block_id, target.block);
}
if (block.default_block && post_order_visit(block.default_block))
add_branch(block_id, block.default_block);
break;
}
default:
break;
}
// If this is a selection merge, add an implied branch to the merge target.
// This is needed to avoid cases where an inner branch dominates the outer branch.
// This can happen if one of the branches exit early, e.g.:
// if (cond) { ...; break; } else { var = 100 } use_var(var);
// We can use the variable without a Phi since there is only one possible parent here.
// However, in this case, we need to hoist out the inner variable to outside the branch.
// Use same strategy as loops.
if (block.merge == SPIRBlock::MergeSelection && post_order_visit(block.next_block))
{
// If there is only one preceding edge to the merge block and it's not ourselves, we need a fixup.
// Add a fake branch so any dominator in either the if (), or else () block, or a lone case statement
// will be hoisted out to outside the selection merge.
// If size > 1, the variable will be automatically hoisted, so we should not mess with it.
// The exception here is switch blocks, where we can have multiple edges to merge block,
// all coming from same scope, so be more conservative in this case.
// Adding fake branches unconditionally breaks parameter preservation analysis,
// which looks at how variables are accessed through the CFG.
auto pred_itr = preceding_edges.find(block.next_block);
if (pred_itr != end(preceding_edges))
{
auto &pred = pred_itr->second;
auto succ_itr = succeeding_edges.find(block_id);
size_t num_succeeding_edges = 0;
if (succ_itr != end(succeeding_edges))
num_succeeding_edges = succ_itr->second.size();
if (block.terminator == SPIRBlock::MultiSelect && num_succeeding_edges == 1)
{
// Multiple branches can come from the same scope due to "break;", so we need to assume that all branches
// come from same case scope in worst case, even if there are multiple preceding edges.
// If we have more than one succeeding edge from the block header, it should be impossible
// to have a dominator be inside the block.
// Only case this can go wrong is if we have 2 or more edges from block header and
// 2 or more edges to merge block, and still have dominator be inside a case label.
if (!pred.empty())
add_branch(block_id, block.next_block);
}
else
{
if (pred.size() == 1 && *pred.begin() != block_id)
add_branch(block_id, block.next_block);
}
}
else
{
// If the merge block does not have any preceding edges, i.e. unreachable, hallucinate it.
// We're going to do code-gen for it, and domination analysis requires that we have at least one preceding edge.
add_branch(block_id, block.next_block);
}
}
// Then visit ourselves. Start counting at one, to let 0 be a magic value for testing back vs. crossing edges.
visit_order[block_id].get() = ++visit_count;
post_order.push_back(block_id);
return true;
}
void CFG::build_post_order_visit_order()
{
uint32_t block = func.entry_block;
visit_count = 0;
visit_order.clear();
post_order.clear();
post_order_visit(block);
}
void CFG::add_branch(uint32_t from, uint32_t to)
{
const auto add_unique = [](SmallVector<uint32_t> &l, uint32_t value) {
auto itr = find(begin(l), end(l), value);
if (itr == end(l))
l.push_back(value);
};
add_unique(preceding_edges[to], from);
add_unique(succeeding_edges[from], to);
}
uint32_t CFG::find_loop_dominator(uint32_t block_id) const
{
while (block_id != SPIRBlock::NoDominator)
{
auto itr = preceding_edges.find(block_id);
if (itr == end(preceding_edges))
return SPIRBlock::NoDominator;
if (itr->second.empty())
return SPIRBlock::NoDominator;
uint32_t pred_block_id = SPIRBlock::NoDominator;
bool ignore_loop_header = false;
// If we are a merge block, go directly to the header block.
// Only consider a loop dominator if we are branching from inside a block to a loop header.
// NOTE: In the CFG we forced an edge from header to merge block always to support variable scopes properly.
for (auto &pred : itr->second)
{
auto &pred_block = compiler.get<SPIRBlock>(pred);
if (pred_block.merge == SPIRBlock::MergeLoop && pred_block.merge_block == ID(block_id))
{
pred_block_id = pred;
ignore_loop_header = true;
break;
}
else if (pred_block.merge == SPIRBlock::MergeSelection && pred_block.next_block == ID(block_id))
{
pred_block_id = pred;
break;
}
}
// No merge block means we can just pick any edge. Loop headers dominate the inner loop, so any path we
// take will lead there.
if (pred_block_id == SPIRBlock::NoDominator)
pred_block_id = itr->second.front();
block_id = pred_block_id;
if (!ignore_loop_header && block_id)
{
auto &block = compiler.get<SPIRBlock>(block_id);
if (block.merge == SPIRBlock::MergeLoop)
return block_id;
}
}
return block_id;
}
bool CFG::node_terminates_control_flow_in_sub_graph(BlockID from, BlockID to) const
{
// Walk backwards, starting from "to" block.
// Only follow pred edges if they have a 1:1 relationship, or a merge relationship.
// If we cannot find a path to "from", we must assume that to is inside control flow in some way.
auto &from_block = compiler.get<SPIRBlock>(from);
BlockID ignore_block_id = 0;
if (from_block.merge == SPIRBlock::MergeLoop)
ignore_block_id = from_block.merge_block;
while (to != from)
{
auto pred_itr = preceding_edges.find(to);
if (pred_itr == end(preceding_edges))
return false;
DominatorBuilder builder(*this);
for (auto &edge : pred_itr->second)
builder.add_block(edge);
uint32_t dominator = builder.get_dominator();
if (dominator == 0)
return false;
auto &dom = compiler.get<SPIRBlock>(dominator);
bool true_path_ignore = false;
bool false_path_ignore = false;
bool merges_to_nothing = dom.merge == SPIRBlock::MergeNone ||
(dom.merge == SPIRBlock::MergeSelection && dom.next_block &&
compiler.get<SPIRBlock>(dom.next_block).terminator == SPIRBlock::Unreachable) ||
(dom.merge == SPIRBlock::MergeLoop && dom.merge_block &&
compiler.get<SPIRBlock>(dom.merge_block).terminator == SPIRBlock::Unreachable);
if (dom.self == from || merges_to_nothing)
{
// We can only ignore inner branchy paths if there is no merge,
// i.e. no code is generated afterwards. E.g. this allows us to elide continue:
// for (;;) { if (cond) { continue; } else { break; } }.
// Codegen here in SPIR-V will be something like either no merge if one path directly breaks, or
// we merge to Unreachable.
if (ignore_block_id && dom.terminator == SPIRBlock::Select)
{
auto &true_block = compiler.get<SPIRBlock>(dom.true_block);
auto &false_block = compiler.get<SPIRBlock>(dom.false_block);
auto &ignore_block = compiler.get<SPIRBlock>(ignore_block_id);
true_path_ignore = compiler.execution_is_branchless(true_block, ignore_block);
false_path_ignore = compiler.execution_is_branchless(false_block, ignore_block);
}
}
// Cases where we allow traversal. This serves as a proxy for post-dominance in a loop body.
// TODO: Might want to do full post-dominance analysis, but it's a lot of churn for something like this ...
// - We're the merge block of a selection construct. Jump to header.
// - We're the merge block of a loop. Jump to header.
// - Direct branch. Trivial.
// - Allow cases inside a branch if the header cannot merge execution before loop exit.
if ((dom.merge == SPIRBlock::MergeSelection && dom.next_block == to) ||
(dom.merge == SPIRBlock::MergeLoop && dom.merge_block == to) ||
(dom.terminator == SPIRBlock::Direct && dom.next_block == to) ||
(dom.terminator == SPIRBlock::Select && dom.true_block == to && false_path_ignore) ||
(dom.terminator == SPIRBlock::Select && dom.false_block == to && true_path_ignore))
{
// Allow walking selection constructs if the other branch reaches out of a loop construct.
// It cannot be in-scope anymore.
to = dominator;
}
else
return false;
}
return true;
}
DominatorBuilder::DominatorBuilder(const CFG &cfg_)
: cfg(cfg_)
{
}
void DominatorBuilder::add_block(uint32_t block)
{
if (!cfg.get_immediate_dominator(block))
{
// Unreachable block via the CFG, we will never emit this code anyways.
return;
}
if (!dominator)
{
dominator = block;
return;
}
if (block != dominator)
dominator = cfg.find_common_dominator(block, dominator);
}
void DominatorBuilder::lift_continue_block_dominator()
{
// It is possible for a continue block to be the dominator of a variable is only accessed inside the while block of a do-while loop.
// We cannot safely declare variables inside a continue block, so move any variable declared
// in a continue block to the entry block to simplify.
// It makes very little sense for a continue block to ever be a dominator, so fall back to the simplest
// solution.
if (!dominator)
return;
auto &block = cfg.get_compiler().get<SPIRBlock>(dominator);
auto post_order = cfg.get_visit_order(dominator);
// If we are branching to a block with a higher post-order traversal index (continue blocks), we have a problem
// since we cannot create sensible GLSL code for this, fallback to entry block.
bool back_edge_dominator = false;
switch (block.terminator)
{
case SPIRBlock::Direct:
if (cfg.get_visit_order(block.next_block) > post_order)
back_edge_dominator = true;
break;
case SPIRBlock::Select:
if (cfg.get_visit_order(block.true_block) > post_order)
back_edge_dominator = true;
if (cfg.get_visit_order(block.false_block) > post_order)
back_edge_dominator = true;
break;
case SPIRBlock::MultiSelect:
{
auto &cases = cfg.get_compiler().get_case_list(block);
for (auto &target : cases)
{
if (cfg.get_visit_order(target.block) > post_order)
back_edge_dominator = true;
}
if (block.default_block && cfg.get_visit_order(block.default_block) > post_order)
back_edge_dominator = true;
break;
}
default:
break;
}
if (back_edge_dominator)
dominator = cfg.get_function().entry_block;
}
} // namespace SPIRV_CROSS_NAMESPACE

553
dep/spirv-cross/src/spirv_cpp.cpp
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@ -1,553 +0,0 @@
/*
* Copyright 2015-2021 Arm Limited
* 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>.
*/
#include "spirv_cpp.hpp"
using namespace spv;
using namespace SPIRV_CROSS_NAMESPACE;
using namespace std;
void CompilerCPP::emit_buffer_block(const SPIRVariable &var)
{
add_resource_name(var.self);
auto &type = get<SPIRType>(var.basetype);
auto instance_name = to_name(var.self);
uint32_t descriptor_set = ir.meta[var.self].decoration.set;
uint32_t binding = ir.meta[var.self].decoration.binding;
emit_block_struct(type);
auto buffer_name = to_name(type.self);
statement("internal::Resource<", buffer_name, type_to_array_glsl(type), "> ", instance_name, "__;");
statement_no_indent("#define ", instance_name, " __res->", instance_name, "__.get()");
resource_registrations.push_back(
join("s.register_resource(", instance_name, "__", ", ", descriptor_set, ", ", binding, ");"));
statement("");
}
void CompilerCPP::emit_interface_block(const SPIRVariable &var)
{
add_resource_name(var.self);
auto &type = get<SPIRType>(var.basetype);
const char *qual = var.storage == StorageClassInput ? "StageInput" : "StageOutput";
const char *lowerqual = var.storage == StorageClassInput ? "stage_input" : "stage_output";
auto instance_name = to_name(var.self);
uint32_t location = ir.meta[var.self].decoration.location;
string buffer_name;
auto flags = ir.meta[type.self].decoration.decoration_flags;
if (flags.get(DecorationBlock))
{
emit_block_struct(type);
buffer_name = to_name(type.self);
}
else
buffer_name = type_to_glsl(type);
statement("internal::", qual, "<", buffer_name, type_to_array_glsl(type), "> ", instance_name, "__;");
statement_no_indent("#define ", instance_name, " __res->", instance_name, "__.get()");
resource_registrations.push_back(join("s.register_", lowerqual, "(", instance_name, "__", ", ", location, ");"));
statement("");
}
void CompilerCPP::emit_shared(const SPIRVariable &var)
{
add_resource_name(var.self);
auto instance_name = to_name(var.self);
statement(CompilerGLSL::variable_decl(var), ";");
statement_no_indent("#define ", instance_name, " __res->", instance_name);
}
void CompilerCPP::emit_uniform(const SPIRVariable &var)
{
add_resource_name(var.self);
auto &type = get<SPIRType>(var.basetype);
auto instance_name = to_name(var.self);
uint32_t descriptor_set = ir.meta[var.self].decoration.set;
uint32_t binding = ir.meta[var.self].decoration.binding;
uint32_t location = ir.meta[var.self].decoration.location;
string type_name = type_to_glsl(type);
remap_variable_type_name(type, instance_name, type_name);
if (type.basetype == SPIRType::Image || type.basetype == SPIRType::SampledImage ||
type.basetype == SPIRType::AtomicCounter)
{
statement("internal::Resource<", type_name, type_to_array_glsl(type), "> ", instance_name, "__;");
statement_no_indent("#define ", instance_name, " __res->", instance_name, "__.get()");
resource_registrations.push_back(
join("s.register_resource(", instance_name, "__", ", ", descriptor_set, ", ", binding, ");"));
}
else
{
statement("internal::UniformConstant<", type_name, type_to_array_glsl(type), "> ", instance_name, "__;");
statement_no_indent("#define ", instance_name, " __res->", instance_name, "__.get()");
resource_registrations.push_back(
join("s.register_uniform_constant(", instance_name, "__", ", ", location, ");"));
}
statement("");
}
void CompilerCPP::emit_push_constant_block(const SPIRVariable &var)
{
add_resource_name(var.self);
auto &type = get<SPIRType>(var.basetype);
auto &flags = ir.meta[var.self].decoration.decoration_flags;
if (flags.get(DecorationBinding) || flags.get(DecorationDescriptorSet))
SPIRV_CROSS_THROW("Push constant blocks cannot be compiled to GLSL with Binding or Set syntax. "
"Remap to location with reflection API first or disable these decorations.");
emit_block_struct(type);
auto buffer_name = to_name(type.self);
auto instance_name = to_name(var.self);
statement("internal::PushConstant<", buffer_name, type_to_array_glsl(type), "> ", instance_name, ";");
statement_no_indent("#define ", instance_name, " __res->", instance_name, ".get()");
resource_registrations.push_back(join("s.register_push_constant(", instance_name, "__", ");"));
statement("");
}
void CompilerCPP::emit_block_struct(SPIRType &type)
{
// C++ can't do interface blocks, so we fake it by emitting a separate struct.
// However, these structs are not allowed to alias anything, so remove it before
// emitting the struct.
//
// The type we have here needs to be resolved to the non-pointer type so we can remove aliases.
auto &self = get<SPIRType>(type.self);
self.type_alias = 0;
emit_struct(self);
}
void CompilerCPP::emit_resources()
{
for (auto &id : ir.ids)
{
if (id.get_type() == TypeConstant)
{
auto &c = id.get<SPIRConstant>();
bool needs_declaration = c.specialization || c.is_used_as_lut;
if (needs_declaration)
{
if (!options.vulkan_semantics && c.specialization)
{
c.specialization_constant_macro_name =
constant_value_macro_name(get_decoration(c.self, DecorationSpecId));
}
emit_constant(c);
}
}
else if (id.get_type() == TypeConstantOp)
{
emit_specialization_constant_op(id.get<SPIRConstantOp>());
}
}
// Output all basic struct types which are not Block or BufferBlock as these are declared inplace
// when such variables are instantiated.
for (auto &id : ir.ids)
{
if (id.get_type() == TypeType)
{
auto &type = id.get<SPIRType>();
if (type.basetype == SPIRType::Struct && type.array.empty() && !type.pointer &&
(!ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock) &&
!ir.meta[type.self].decoration.decoration_flags.get(DecorationBufferBlock)))
{
emit_struct(type);
}
}
}
statement("struct Resources : ", resource_type);
begin_scope();
// Output UBOs and SSBOs
for (auto &id : ir.ids)
{
if (id.get_type() == TypeVariable)
{
auto &var = id.get<SPIRVariable>();
auto &type = get<SPIRType>(var.basetype);
if (var.storage != StorageClassFunction && type.pointer && type.storage == StorageClassUniform &&
!is_hidden_variable(var) &&
(ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock) ||
ir.meta[type.self].decoration.decoration_flags.get(DecorationBufferBlock)))
{
emit_buffer_block(var);
}
}
}
// Output push constant blocks
for (auto &id : ir.ids)
{
if (id.get_type() == TypeVariable)
{
auto &var = id.get<SPIRVariable>();
auto &type = get<SPIRType>(var.basetype);
if (!is_hidden_variable(var) && var.storage != StorageClassFunction && type.pointer &&
type.storage == StorageClassPushConstant)
{
emit_push_constant_block(var);
}
}
}
// Output in/out interfaces.
for (auto &id : ir.ids)
{
if (id.get_type() == TypeVariable)
{
auto &var = id.get<SPIRVariable>();
auto &type = get<SPIRType>(var.basetype);
if (var.storage != StorageClassFunction && !is_hidden_variable(var) && type.pointer &&
(var.storage == StorageClassInput || var.storage == StorageClassOutput) &&
interface_variable_exists_in_entry_point(var.self))
{
emit_interface_block(var);
}
}
}
// Output Uniform Constants (values, samplers, images, etc).
for (auto &id : ir.ids)
{
if (id.get_type() == TypeVariable)
{
auto &var = id.get<SPIRVariable>();
auto &type = get<SPIRType>(var.basetype);
if (var.storage != StorageClassFunction && !is_hidden_variable(var) && type.pointer &&
(type.storage == StorageClassUniformConstant || type.storage == StorageClassAtomicCounter))
{
emit_uniform(var);
}
}
}
// Global variables.
bool emitted = false;
for (auto global : global_variables)
{
auto &var = get<SPIRVariable>(global);
if (var.storage == StorageClassWorkgroup)
{
emit_shared(var);
emitted = true;
}
}
if (emitted)
statement("");
statement("inline void init(spirv_cross_shader& s)");
begin_scope();
statement(resource_type, "::init(s);");
for (auto &reg : resource_registrations)
statement(reg);
end_scope();
resource_registrations.clear();
end_scope_decl();
statement("");
statement("Resources* __res;");
if (get_entry_point().model == ExecutionModelGLCompute)
statement("ComputePrivateResources __priv_res;");
statement("");
// Emit regular globals which are allocated per invocation.
emitted = false;
for (auto global : global_variables)
{
auto &var = get<SPIRVariable>(global);
if (var.storage == StorageClassPrivate)
{
if (var.storage == StorageClassWorkgroup)
emit_shared(var);
else
statement(CompilerGLSL::variable_decl(var), ";");
emitted = true;
}
}
if (emitted)
statement("");
}
string CompilerCPP::compile()
{
ir.fixup_reserved_names();
// Do not deal with ES-isms like precision, older extensions and such.
options.es = false;
options.version = 450;
backend.float_literal_suffix = true;
backend.double_literal_suffix = false;
backend.long_long_literal_suffix = true;
backend.uint32_t_literal_suffix = true;
backend.basic_int_type = "int32_t";
backend.basic_uint_type = "uint32_t";
backend.swizzle_is_function = true;
backend.shared_is_implied = true;
backend.unsized_array_supported = false;
backend.explicit_struct_type = true;
backend.use_initializer_list = true;
fixup_type_alias();
reorder_type_alias();
build_function_control_flow_graphs_and_analyze();
update_active_builtins();
uint32_t pass_count = 0;
do
{
resource_registrations.clear();
reset(pass_count);
// Move constructor for this type is broken on GCC 4.9 ...
buffer.reset();
emit_header();
emit_resources();
emit_function(get<SPIRFunction>(ir.default_entry_point), Bitset());
pass_count++;
} while (is_forcing_recompilation());
// Match opening scope of emit_header().
end_scope_decl();
// namespace
end_scope();
// Emit C entry points
emit_c_linkage();
// Entry point in CPP is always main() for the time being.
get_entry_point().name = "main";
return buffer.str();
}
void CompilerCPP::emit_c_linkage()
{
statement("");
statement("spirv_cross_shader_t *spirv_cross_construct(void)");
begin_scope();
statement("return new ", impl_type, "();");
end_scope();
statement("");
statement("void spirv_cross_destruct(spirv_cross_shader_t *shader)");
begin_scope();
statement("delete static_cast<", impl_type, "*>(shader);");
end_scope();
statement("");
statement("void spirv_cross_invoke(spirv_cross_shader_t *shader)");
begin_scope();
statement("static_cast<", impl_type, "*>(shader)->invoke();");
end_scope();
statement("");
statement("static const struct spirv_cross_interface vtable =");
begin_scope();
statement("spirv_cross_construct,");
statement("spirv_cross_destruct,");
statement("spirv_cross_invoke,");
end_scope_decl();
statement("");
statement("const struct spirv_cross_interface *",
interface_name.empty() ? string("spirv_cross_get_interface") : interface_name, "(void)");
begin_scope();
statement("return &vtable;");
end_scope();
}
void CompilerCPP::emit_function_prototype(SPIRFunction &func, const Bitset &)
{
if (func.self != ir.default_entry_point)
add_function_overload(func);
local_variable_names = resource_names;
string decl;
auto &type = get<SPIRType>(func.return_type);
decl += "inline ";
decl += type_to_glsl(type);
decl += " ";
if (func.self == ir.default_entry_point)
{
decl += "main";
processing_entry_point = true;
}
else
decl += to_name(func.self);
decl += "(";
for (auto &arg : func.arguments)
{
add_local_variable_name(arg.id);
decl += argument_decl(arg);
if (&arg != &func.arguments.back())
decl += ", ";
// Hold a pointer to the parameter so we can invalidate the readonly field if needed.
auto *var = maybe_get<SPIRVariable>(arg.id);
if (var)
var->parameter = &arg;
}
decl += ")";
statement(decl);
}
string CompilerCPP::argument_decl(const SPIRFunction::Parameter &arg)
{
auto &type = expression_type(arg.id);
bool constref = !type.pointer || arg.write_count == 0;
auto &var = get<SPIRVariable>(arg.id);
string base = type_to_glsl(type);
string variable_name = to_name(var.self);
remap_variable_type_name(type, variable_name, base);
for (uint32_t i = 0; i < type.array.size(); i++)
base = join("std::array<", base, ", ", to_array_size(type, i), ">");
return join(constref ? "const " : "", base, " &", variable_name);
}
string CompilerCPP::variable_decl(const SPIRType &type, const string &name, uint32_t /* id */)
{
string base = type_to_glsl(type);
remap_variable_type_name(type, name, base);
bool runtime = false;
for (uint32_t i = 0; i < type.array.size(); i++)
{
auto &array = type.array[i];
if (!array && type.array_size_literal[i])
{
// Avoid using runtime arrays with std::array since this is undefined.
// Runtime arrays cannot be passed around as values, so this is fine.
runtime = true;
}
else
base = join("std::array<", base, ", ", to_array_size(type, i), ">");
}
base += ' ';
return base + name + (runtime ? "[1]" : "");
}
void CompilerCPP::emit_header()
{
auto &execution = get_entry_point();
statement("// This C++ shader is autogenerated by spirv-cross.");
statement("#include \"spirv_cross/internal_interface.hpp\"");
statement("#include \"spirv_cross/external_interface.h\"");
// Needed to properly implement GLSL-style arrays.
statement("#include <array>");
statement("#include <stdint.h>");
statement("");
statement("using namespace spirv_cross;");
statement("using namespace glm;");
statement("");
statement("namespace Impl");
begin_scope();
switch (execution.model)
{
case ExecutionModelGeometry:
case ExecutionModelTessellationControl:
case ExecutionModelTessellationEvaluation:
case ExecutionModelGLCompute:
case ExecutionModelFragment:
case ExecutionModelVertex:
statement("struct Shader");
begin_scope();
break;
default:
SPIRV_CROSS_THROW("Unsupported execution model.");
}
switch (execution.model)
{
case ExecutionModelGeometry:
impl_type = "GeometryShader<Impl::Shader, Impl::Shader::Resources>";
resource_type = "GeometryResources";
break;
case ExecutionModelVertex:
impl_type = "VertexShader<Impl::Shader, Impl::Shader::Resources>";
resource_type = "VertexResources";
break;
case ExecutionModelFragment:
impl_type = "FragmentShader<Impl::Shader, Impl::Shader::Resources>";
resource_type = "FragmentResources";
break;
case ExecutionModelGLCompute:
impl_type = join("ComputeShader<Impl::Shader, Impl::Shader::Resources, ", execution.workgroup_size.x, ", ",
execution.workgroup_size.y, ", ", execution.workgroup_size.z, ">");
resource_type = "ComputeResources";
break;
case ExecutionModelTessellationControl:
impl_type = "TessControlShader<Impl::Shader, Impl::Shader::Resources>";
resource_type = "TessControlResources";
break;
case ExecutionModelTessellationEvaluation:
impl_type = "TessEvaluationShader<Impl::Shader, Impl::Shader::Resources>";
resource_type = "TessEvaluationResources";
break;
default:
SPIRV_CROSS_THROW("Unsupported execution model.");
}
}

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/*
* Copyright 2015-2021 Arm Limited
* 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>.
*/
#include "spirv_cross_util.hpp"
#include "spirv_common.hpp"
using namespace spv;
using namespace SPIRV_CROSS_NAMESPACE;
namespace spirv_cross_util
{
void rename_interface_variable(Compiler &compiler, const SmallVector<Resource> &resources, uint32_t location,
const std::string &name)
{
for (auto &v : resources)
{
if (!compiler.has_decoration(v.id, spv::DecorationLocation))
continue;
auto loc = compiler.get_decoration(v.id, spv::DecorationLocation);
if (loc != location)
continue;
auto &type = compiler.get_type(v.base_type_id);
// This is more of a friendly variant. If we need to rename interface variables, we might have to rename
// structs as well and make sure all the names match up.
if (type.basetype == SPIRType::Struct)
{
compiler.set_name(v.base_type_id, join("SPIRV_Cross_Interface_Location", location));
for (uint32_t i = 0; i < uint32_t(type.member_types.size()); i++)
compiler.set_member_name(v.base_type_id, i, join("InterfaceMember", i));
}
compiler.set_name(v.id, name);
}
}
void inherit_combined_sampler_bindings(Compiler &compiler)
{
auto &samplers = compiler.get_combined_image_samplers();
for (auto &s : samplers)
{
if (compiler.has_decoration(s.image_id, spv::DecorationDescriptorSet))
{
uint32_t set = compiler.get_decoration(s.image_id, spv::DecorationDescriptorSet);
compiler.set_decoration(s.combined_id, spv::DecorationDescriptorSet, set);
}
if (compiler.has_decoration(s.image_id, spv::DecorationBinding))
{
uint32_t binding = compiler.get_decoration(s.image_id, spv::DecorationBinding);
compiler.set_decoration(s.combined_id, spv::DecorationBinding, binding);
}
}
}
} // namespace spirv_cross_util

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/*
* Copyright 2018-2021 Bradley Austin Davis
* 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>.
*/
#include "spirv_reflect.hpp"
#include "spirv_glsl.hpp"
#include <iomanip>
using namespace spv;
using namespace SPIRV_CROSS_NAMESPACE;
using namespace std;
namespace simple_json
{
enum class Type
{
Object,
Array,
};
using State = std::pair<Type, bool>;
using Stack = std::stack<State>;
class Stream
{
Stack stack;
StringStream<> buffer;
uint32_t indent{ 0 };
char current_locale_radix_character = '.';
public:
void set_current_locale_radix_character(char c)
{
current_locale_radix_character = c;
}
void begin_json_object();
void end_json_object();
void emit_json_key(const std::string &key);
void emit_json_key_value(const std::string &key, const std::string &value);
void emit_json_key_value(const std::string &key, bool value);
void emit_json_key_value(const std::string &key, uint32_t value);
void emit_json_key_value(const std::string &key, int32_t value);
void emit_json_key_value(const std::string &key, float value);
void emit_json_key_object(const std::string &key);
void emit_json_key_array(const std::string &key);
void begin_json_array();
void end_json_array();
void emit_json_array_value(const std::string &value);
void emit_json_array_value(uint32_t value);
void emit_json_array_value(bool value);
std::string str() const
{
return buffer.str();
}
private:
inline void statement_indent()
{
for (uint32_t i = 0; i < indent; i++)
buffer << " ";
}
template <typename T>
inline void statement_inner(T &&t)
{
buffer << std::forward<T>(t);
}
template <typename T, typename... Ts>
inline void statement_inner(T &&t, Ts &&... ts)
{
buffer << std::forward<T>(t);
statement_inner(std::forward<Ts>(ts)...);
}
template <typename... Ts>
inline void statement(Ts &&... ts)
{
statement_indent();
statement_inner(std::forward<Ts>(ts)...);
buffer << '\n';
}
template <typename... Ts>
void statement_no_return(Ts &&... ts)
{
statement_indent();
statement_inner(std::forward<Ts>(ts)...);
}
};
} // namespace simple_json
using namespace simple_json;
// Hackery to emit JSON without using nlohmann/json C++ library (which requires a
// higher level of compiler compliance than is required by SPIRV-Cross
void Stream::begin_json_array()
{
if (!stack.empty() && stack.top().second)
{
statement_inner(",\n");
}
statement("[");
++indent;
stack.emplace(Type::Array, false);
}
void Stream::end_json_array()
{
if (stack.empty() || stack.top().first != Type::Array)
SPIRV_CROSS_THROW("Invalid JSON state");
if (stack.top().second)
{
statement_inner("\n");
}
--indent;
statement_no_return("]");
stack.pop();
if (!stack.empty())
{
stack.top().second = true;
}
}
void Stream::emit_json_array_value(const std::string &value)
{
if (stack.empty() || stack.top().first != Type::Array)
SPIRV_CROSS_THROW("Invalid JSON state");
if (stack.top().second)
statement_inner(",\n");
statement_no_return("\"", value, "\"");
stack.top().second = true;
}
void Stream::emit_json_array_value(uint32_t value)
{
if (stack.empty() || stack.top().first != Type::Array)
SPIRV_CROSS_THROW("Invalid JSON state");
if (stack.top().second)
statement_inner(",\n");
statement_no_return(std::to_string(value));
stack.top().second = true;
}
void Stream::emit_json_array_value(bool value)
{
if (stack.empty() || stack.top().first != Type::Array)
SPIRV_CROSS_THROW("Invalid JSON state");
if (stack.top().second)
statement_inner(",\n");
statement_no_return(value ? "true" : "false");
stack.top().second = true;
}
void Stream::begin_json_object()
{
if (!stack.empty() && stack.top().second)
{
statement_inner(",\n");
}
statement("{");
++indent;
stack.emplace(Type::Object, false);
}
void Stream::end_json_object()
{
if (stack.empty() || stack.top().first != Type::Object)
SPIRV_CROSS_THROW("Invalid JSON state");
if (stack.top().second)
{
statement_inner("\n");
}
--indent;
statement_no_return("}");
stack.pop();
if (!stack.empty())
{
stack.top().second = true;
}
}
void Stream::emit_json_key(const std::string &key)
{
if (stack.empty() || stack.top().first != Type::Object)
SPIRV_CROSS_THROW("Invalid JSON state");
if (stack.top().second)
statement_inner(",\n");
statement_no_return("\"", key, "\" : ");
stack.top().second = true;
}
void Stream::emit_json_key_value(const std::string &key, const std::string &value)
{
emit_json_key(key);
statement_inner("\"", value, "\"");
}
void Stream::emit_json_key_value(const std::string &key, uint32_t value)
{
emit_json_key(key);
statement_inner(value);
}
void Stream::emit_json_key_value(const std::string &key, int32_t value)
{
emit_json_key(key);
statement_inner(value);
}
void Stream::emit_json_key_value(const std::string &key, float value)
{
emit_json_key(key);
statement_inner(convert_to_string(value, current_locale_radix_character));
}
void Stream::emit_json_key_value(const std::string &key, bool value)
{
emit_json_key(key);
statement_inner(value ? "true" : "false");
}
void Stream::emit_json_key_object(const std::string &key)
{
emit_json_key(key);
statement_inner("{\n");
++indent;
stack.emplace(Type::Object, false);
}
void Stream::emit_json_key_array(const std::string &key)
{
emit_json_key(key);
statement_inner("[\n");
++indent;
stack.emplace(Type::Array, false);
}
void CompilerReflection::set_format(const std::string &format)
{
if (format != "json")
{
SPIRV_CROSS_THROW("Unsupported format");
}
}
string CompilerReflection::compile()
{
json_stream = std::make_shared<simple_json::Stream>();
json_stream->set_current_locale_radix_character(current_locale_radix_character);
json_stream->begin_json_object();
reorder_type_alias();
emit_entry_points();
emit_types();
emit_resources();
emit_specialization_constants();
json_stream->end_json_object();
return json_stream->str();
}
static bool naturally_emit_type(const SPIRType &type)
{
return type.basetype == SPIRType::Struct && !type.pointer && type.array.empty();
}
bool CompilerReflection::type_is_reference(const SPIRType &type) const
{
// Physical pointers and arrays of physical pointers need to refer to the pointee's type.
return type_is_top_level_physical_pointer(type) ||
(type_is_array_of_pointers(type) && type.storage == StorageClassPhysicalStorageBuffer);
}
void CompilerReflection::emit_types()
{
bool emitted_open_tag = false;
SmallVector<uint32_t> physical_pointee_types;
// If we have physical pointers or arrays of physical pointers, it's also helpful to emit the pointee type
// and chain the type hierarchy. For POD, arrays can emit the entire type in-place.
ir.for_each_typed_id<SPIRType>([&](uint32_t self, SPIRType &type) {
if (naturally_emit_type(type))
{
emit_type(self, emitted_open_tag);
}
else if (type_is_reference(type))
{
if (!naturally_emit_type(this->get<SPIRType>(type.parent_type)) &&
find(physical_pointee_types.begin(), physical_pointee_types.end(), type.parent_type) ==
physical_pointee_types.end())
{
physical_pointee_types.push_back(type.parent_type);
}
}
});
for (uint32_t pointee_type : physical_pointee_types)
emit_type(pointee_type, emitted_open_tag);
if (emitted_open_tag)
{
json_stream->end_json_object();
}
}
void CompilerReflection::emit_type(uint32_t type_id, bool &emitted_open_tag)
{
auto &type = get<SPIRType>(type_id);
auto name = type_to_glsl(type);
if (!emitted_open_tag)
{
json_stream->emit_json_key_object("types");
emitted_open_tag = true;
}
json_stream->emit_json_key_object("_" + std::to_string(type_id));
json_stream->emit_json_key_value("name", name);
if (type_is_top_level_physical_pointer(type))
{
json_stream->emit_json_key_value("type", "_" + std::to_string(type.parent_type));
json_stream->emit_json_key_value("physical_pointer", true);
}
else if (!type.array.empty())
{
emit_type_array(type);
json_stream->emit_json_key_value("type", "_" + std::to_string(type.parent_type));
json_stream->emit_json_key_value("array_stride", get_decoration(type_id, DecorationArrayStride));
}
else
{
json_stream->emit_json_key_array("members");
// FIXME ideally we'd like to emit the size of a structure as a
// convenience to people parsing the reflected JSON. The problem
// is that there's no implicit size for a type. It's final size
// will be determined by the top level declaration in which it's
// included. So there might be one size for the struct if it's
// included in a std140 uniform block and another if it's included
// in a std430 uniform block.
// The solution is to include *all* potential sizes as a map of
// layout type name to integer, but that will probably require
// some additional logic being written in this class, or in the
// parent CompilerGLSL class.
auto size = type.member_types.size();
for (uint32_t i = 0; i < size; ++i)
{
emit_type_member(type, i);
}
json_stream->end_json_array();
}
json_stream->end_json_object();
}
void CompilerReflection::emit_type_member(const SPIRType &type, uint32_t index)
{
auto &membertype = get<SPIRType>(type.member_types[index]);
json_stream->begin_json_object();
auto name = to_member_name(type, index);
// FIXME we'd like to emit the offset of each member, but such offsets are
// context dependent. See the comment above regarding structure sizes
json_stream->emit_json_key_value("name", name);
if (type_is_reference(membertype))
{
json_stream->emit_json_key_value("type", "_" + std::to_string(membertype.parent_type));
}
else if (membertype.basetype == SPIRType::Struct)
{
json_stream->emit_json_key_value("type", "_" + std::to_string(membertype.self));
}
else
{
json_stream->emit_json_key_value("type", type_to_glsl(membertype));
}
emit_type_member_qualifiers(type, index);
json_stream->end_json_object();
}
void CompilerReflection::emit_type_array(const SPIRType &type)
{
if (!type_is_top_level_physical_pointer(type) && !type.array.empty())
{
json_stream->emit_json_key_array("array");
// Note that we emit the zeros here as a means of identifying
// unbounded arrays. This is necessary as otherwise there would
// be no way of differentiating between float[4] and float[4][]
for (const auto &value : type.array)
json_stream->emit_json_array_value(value);
json_stream->end_json_array();
json_stream->emit_json_key_array("array_size_is_literal");
for (const auto &value : type.array_size_literal)
json_stream->emit_json_array_value(value);
json_stream->end_json_array();
}
}
void CompilerReflection::emit_type_member_qualifiers(const SPIRType &type, uint32_t index)
{
auto &membertype = get<SPIRType>(type.member_types[index]);
emit_type_array(membertype);
auto &memb = ir.meta[type.self].members;
if (index < memb.size())
{
auto &dec = memb[index];
if (dec.decoration_flags.get(DecorationLocation))
json_stream->emit_json_key_value("location", dec.location);
if (dec.decoration_flags.get(DecorationOffset))
json_stream->emit_json_key_value("offset", dec.offset);
// Array stride is a property of the array type, not the struct.
if (has_decoration(type.member_types[index], DecorationArrayStride))
json_stream->emit_json_key_value("array_stride",
get_decoration(type.member_types[index], DecorationArrayStride));
if (dec.decoration_flags.get(DecorationMatrixStride))
json_stream->emit_json_key_value("matrix_stride", dec.matrix_stride);
if (dec.decoration_flags.get(DecorationRowMajor))
json_stream->emit_json_key_value("row_major", true);
if (type_is_top_level_physical_pointer(membertype))
json_stream->emit_json_key_value("physical_pointer", true);
}
}
string CompilerReflection::execution_model_to_str(spv::ExecutionModel model)
{
switch (model)
{
case ExecutionModelVertex:
return "vert";
case ExecutionModelTessellationControl:
return "tesc";
case ExecutionModelTessellationEvaluation:
return "tese";
case ExecutionModelGeometry:
return "geom";
case ExecutionModelFragment:
return "frag";
case ExecutionModelGLCompute:
return "comp";
case ExecutionModelRayGenerationNV:
return "rgen";
case ExecutionModelIntersectionNV:
return "rint";
case ExecutionModelAnyHitNV:
return "rahit";
case ExecutionModelClosestHitNV:
return "rchit";
case ExecutionModelMissNV:
return "rmiss";
case ExecutionModelCallableNV:
return "rcall";
default:
return "???";
}
}
// FIXME include things like the local_size dimensions, geometry output vertex count, etc
void CompilerReflection::emit_entry_points()
{
auto entries = get_entry_points_and_stages();
if (!entries.empty())
{
// Needed to make output deterministic.
sort(begin(entries), end(entries), [](const EntryPoint &a, const EntryPoint &b) -> bool {
if (a.execution_model < b.execution_model)
return true;
else if (a.execution_model > b.execution_model)
return false;
else
return a.name < b.name;
});
json_stream->emit_json_key_array("entryPoints");
for (auto &e : entries)
{
json_stream->begin_json_object();
json_stream->emit_json_key_value("name", e.name);
json_stream->emit_json_key_value("mode", execution_model_to_str(e.execution_model));
if (e.execution_model == ExecutionModelGLCompute)
{
const auto &spv_entry = get_entry_point(e.name, e.execution_model);
SpecializationConstant spec_x, spec_y, spec_z;
get_work_group_size_specialization_constants(spec_x, spec_y, spec_z);
json_stream->emit_json_key_array("workgroup_size");
json_stream->emit_json_array_value(spec_x.id != ID(0) ? spec_x.constant_id :
spv_entry.workgroup_size.x);
json_stream->emit_json_array_value(spec_y.id != ID(0) ? spec_y.constant_id :
spv_entry.workgroup_size.y);
json_stream->emit_json_array_value(spec_z.id != ID(0) ? spec_z.constant_id :
spv_entry.workgroup_size.z);
json_stream->end_json_array();
json_stream->emit_json_key_array("workgroup_size_is_spec_constant_id");
json_stream->emit_json_array_value(spec_x.id != ID(0));
json_stream->emit_json_array_value(spec_y.id != ID(0));
json_stream->emit_json_array_value(spec_z.id != ID(0));
json_stream->end_json_array();
}
json_stream->end_json_object();
}
json_stream->end_json_array();
}
}
void CompilerReflection::emit_resources()
{
auto res = get_shader_resources();
emit_resources("subpass_inputs", res.subpass_inputs);
emit_resources("inputs", res.stage_inputs);
emit_resources("outputs", res.stage_outputs);
emit_resources("textures", res.sampled_images);
emit_resources("separate_images", res.separate_images);
emit_resources("separate_samplers", res.separate_samplers);
emit_resources("images", res.storage_images);
emit_resources("ssbos", res.storage_buffers);
emit_resources("ubos", res.uniform_buffers);
emit_resources("push_constants", res.push_constant_buffers);
emit_resources("counters", res.atomic_counters);
emit_resources("acceleration_structures", res.acceleration_structures);
}
void CompilerReflection::emit_resources(const char *tag, const SmallVector<Resource> &resources)
{
if (resources.empty())
{
return;
}
json_stream->emit_json_key_array(tag);
for (auto &res : resources)
{
auto &type = get_type(res.type_id);
auto typeflags = ir.meta[type.self].decoration.decoration_flags;
auto &mask = get_decoration_bitset(res.id);
// If we don't have a name, use the fallback for the type instead of the variable
// for SSBOs and UBOs since those are the only meaningful names to use externally.
// Push constant blocks are still accessed by name and not block name, even though they are technically Blocks.
bool is_push_constant = get_storage_class(res.id) == StorageClassPushConstant;
bool is_block = get_decoration_bitset(type.self).get(DecorationBlock) ||
get_decoration_bitset(type.self).get(DecorationBufferBlock);
ID fallback_id = !is_push_constant && is_block ? ID(res.base_type_id) : ID(res.id);
json_stream->begin_json_object();
if (type.basetype == SPIRType::Struct)
{
json_stream->emit_json_key_value("type", "_" + std::to_string(res.base_type_id));
}
else
{
json_stream->emit_json_key_value("type", type_to_glsl(type));
}
json_stream->emit_json_key_value("name", !res.name.empty() ? res.name : get_fallback_name(fallback_id));
{
bool ssbo_block = type.storage == StorageClassStorageBuffer ||
(type.storage == StorageClassUniform && typeflags.get(DecorationBufferBlock));
Bitset qualifier_mask = ssbo_block ? get_buffer_block_flags(res.id) : mask;
if (qualifier_mask.get(DecorationNonReadable))
json_stream->emit_json_key_value("writeonly", true);
if (qualifier_mask.get(DecorationNonWritable))
json_stream->emit_json_key_value("readonly", true);
if (qualifier_mask.get(DecorationRestrict))
json_stream->emit_json_key_value("restrict", true);
if (qualifier_mask.get(DecorationCoherent))
json_stream->emit_json_key_value("coherent", true);
if (qualifier_mask.get(DecorationVolatile))
json_stream->emit_json_key_value("volatile", true);
}
emit_type_array(type);
{
bool is_sized_block = is_block && (get_storage_class(res.id) == StorageClassUniform ||
get_storage_class(res.id) == StorageClassUniformConstant ||
get_storage_class(res.id) == StorageClassStorageBuffer);
if (is_sized_block)
{
uint32_t block_size = uint32_t(get_declared_struct_size(get_type(res.base_type_id)));
json_stream->emit_json_key_value("block_size", block_size);
}
}
if (type.storage == StorageClassPushConstant)
json_stream->emit_json_key_value("push_constant", true);
if (mask.get(DecorationLocation))
json_stream->emit_json_key_value("location", get_decoration(res.id, DecorationLocation));
if (mask.get(DecorationRowMajor))
json_stream->emit_json_key_value("row_major", true);
if (mask.get(DecorationColMajor))
json_stream->emit_json_key_value("column_major", true);
if (mask.get(DecorationIndex))
json_stream->emit_json_key_value("index", get_decoration(res.id, DecorationIndex));
if (type.storage != StorageClassPushConstant && mask.get(DecorationDescriptorSet))
json_stream->emit_json_key_value("set", get_decoration(res.id, DecorationDescriptorSet));
if (mask.get(DecorationBinding))
json_stream->emit_json_key_value("binding", get_decoration(res.id, DecorationBinding));
if (mask.get(DecorationInputAttachmentIndex))
json_stream->emit_json_key_value("input_attachment_index",
get_decoration(res.id, DecorationInputAttachmentIndex));
if (mask.get(DecorationOffset))
json_stream->emit_json_key_value("offset", get_decoration(res.id, DecorationOffset));
// For images, the type itself adds a layout qualifer.
// Only emit the format for storage images.
if (type.basetype == SPIRType::Image && type.image.sampled == 2)
{
const char *fmt = format_to_glsl(type.image.format);
if (fmt != nullptr)
json_stream->emit_json_key_value("format", std::string(fmt));
}
json_stream->end_json_object();
}
json_stream->end_json_array();
}
void CompilerReflection::emit_specialization_constants()
{
auto specialization_constants = get_specialization_constants();
if (specialization_constants.empty())
return;
json_stream->emit_json_key_array("specialization_constants");
for (const auto &spec_const : specialization_constants)
{
auto &c = get<SPIRConstant>(spec_const.id);
auto type = get<SPIRType>(c.constant_type);
json_stream->begin_json_object();
json_stream->emit_json_key_value("name", get_name(spec_const.id));
json_stream->emit_json_key_value("id", spec_const.constant_id);
json_stream->emit_json_key_value("type", type_to_glsl(type));
json_stream->emit_json_key_value("variable_id", spec_const.id);
switch (type.basetype)
{
case SPIRType::UInt:
json_stream->emit_json_key_value("default_value", c.scalar());
break;
case SPIRType::Int:
json_stream->emit_json_key_value("default_value", c.scalar_i32());
break;
case SPIRType::Float:
json_stream->emit_json_key_value("default_value", c.scalar_f32());
break;
case SPIRType::Boolean:
json_stream->emit_json_key_value("default_value", c.scalar() != 0);
break;
default:
break;
}
json_stream->end_json_object();
}
json_stream->end_json_array();
}
string CompilerReflection::to_member_name(const SPIRType &type, uint32_t index) const
{
auto *type_meta = ir.find_meta(type.self);
if (type_meta)
{
auto &memb = type_meta->members;
if (index < memb.size() && !memb[index].alias.empty())
return memb[index].alias;
else
return join("_m", index);
}
else
return join("_m", index);
}