659 lines
29 KiB
C++
659 lines
29 KiB
C++
/*
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* Copyright 2015-2019 Arm Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SPIRV_CROSS_GLSL_HPP
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#define SPIRV_CROSS_GLSL_HPP
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#include "spirv_cross.hpp"
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#include "GLSL.std.450.h"
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#include <sstream>
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#include <unordered_map>
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#include <unordered_set>
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#include <utility>
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namespace SPIRV_CROSS_NAMESPACE
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{
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enum PlsFormat
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{
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PlsNone = 0,
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PlsR11FG11FB10F,
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PlsR32F,
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PlsRG16F,
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PlsRGB10A2,
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PlsRGBA8,
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PlsRG16,
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PlsRGBA8I,
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PlsRG16I,
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PlsRGB10A2UI,
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PlsRGBA8UI,
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PlsRG16UI,
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PlsR32UI
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};
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struct PlsRemap
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{
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uint32_t id;
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PlsFormat format;
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};
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enum AccessChainFlagBits
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{
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ACCESS_CHAIN_INDEX_IS_LITERAL_BIT = 1 << 0,
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ACCESS_CHAIN_CHAIN_ONLY_BIT = 1 << 1,
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ACCESS_CHAIN_PTR_CHAIN_BIT = 1 << 2,
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ACCESS_CHAIN_SKIP_REGISTER_EXPRESSION_READ_BIT = 1 << 3
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};
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typedef uint32_t AccessChainFlags;
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class CompilerGLSL : public Compiler
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{
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public:
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struct Options
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{
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// The shading language version. Corresponds to #version $VALUE.
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uint32_t version = 450;
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// Emit the OpenGL ES shading language instead of desktop OpenGL.
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bool es = false;
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// Debug option to always emit temporary variables for all expressions.
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bool force_temporary = false;
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// If true, Vulkan GLSL features are used instead of GL-compatible features.
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// Mostly useful for debugging SPIR-V files.
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bool vulkan_semantics = false;
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// If true, gl_PerVertex is explicitly redeclared in vertex, geometry and tessellation shaders.
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// The members of gl_PerVertex is determined by which built-ins are declared by the shader.
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// This option is ignored in ES versions, as redeclaration in ES is not required, and it depends on a different extension
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// (EXT_shader_io_blocks) which makes things a bit more fuzzy.
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bool separate_shader_objects = false;
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// Flattens multidimensional arrays, e.g. float foo[a][b][c] into single-dimensional arrays,
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// e.g. float foo[a * b * c].
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// This function does not change the actual SPIRType of any object.
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// Only the generated code, including declarations of interface variables are changed to be single array dimension.
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bool flatten_multidimensional_arrays = false;
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// For older desktop GLSL targets than version 420, the
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// GL_ARB_shading_language_420pack extensions is used to be able to support
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// layout(binding) on UBOs and samplers.
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// If disabled on older targets, binding decorations will be stripped.
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bool enable_420pack_extension = true;
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// In non-Vulkan GLSL, emit push constant blocks as UBOs rather than plain uniforms.
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bool emit_push_constant_as_uniform_buffer = false;
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enum Precision
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{
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DontCare,
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Lowp,
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Mediump,
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Highp
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};
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struct
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{
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// GLSL: In vertex shaders, rewrite [0, w] depth (Vulkan/D3D style) to [-w, w] depth (GL style).
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// MSL: In vertex shaders, rewrite [-w, w] depth (GL style) to [0, w] depth.
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// HLSL: In vertex shaders, rewrite [-w, w] depth (GL style) to [0, w] depth.
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bool fixup_clipspace = false;
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// Inverts gl_Position.y or equivalent.
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bool flip_vert_y = false;
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// GLSL only, for HLSL version of this option, see CompilerHLSL.
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// If true, the backend will assume that InstanceIndex will need to apply
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// a base instance offset. Set to false if you know you will never use base instance
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// functionality as it might remove some internal uniforms.
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bool support_nonzero_base_instance = true;
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} vertex;
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struct
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{
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// Add precision mediump float in ES targets when emitting GLES source.
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// Add precision highp int in ES targets when emitting GLES source.
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Precision default_float_precision = Mediump;
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Precision default_int_precision = Highp;
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} fragment;
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};
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void remap_pixel_local_storage(std::vector<PlsRemap> inputs, std::vector<PlsRemap> outputs)
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{
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pls_inputs = std::move(inputs);
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pls_outputs = std::move(outputs);
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remap_pls_variables();
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}
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explicit CompilerGLSL(std::vector<uint32_t> spirv_)
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: Compiler(move(spirv_))
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{
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init();
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}
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CompilerGLSL(const uint32_t *ir_, size_t word_count)
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: Compiler(ir_, word_count)
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{
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init();
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}
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explicit CompilerGLSL(const ParsedIR &ir_)
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: Compiler(ir_)
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{
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init();
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}
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explicit CompilerGLSL(ParsedIR &&ir_)
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: Compiler(std::move(ir_))
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{
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init();
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}
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const Options &get_common_options() const
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{
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return options;
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}
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void set_common_options(const Options &opts)
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{
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options = opts;
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}
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std::string compile() override;
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// Returns the current string held in the conversion buffer. Useful for
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// capturing what has been converted so far when compile() throws an error.
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std::string get_partial_source();
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// Adds a line to be added right after #version in GLSL backend.
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// This is useful for enabling custom extensions which are outside the scope of SPIRV-Cross.
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// This can be combined with variable remapping.
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// A new-line will be added.
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//
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// While add_header_line() is a more generic way of adding arbitrary text to the header
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// of a GLSL file, require_extension() should be used when adding extensions since it will
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// avoid creating collisions with SPIRV-Cross generated extensions.
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//
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// Code added via add_header_line() is typically backend-specific.
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void add_header_line(const std::string &str);
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// Adds an extension which is required to run this shader, e.g.
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// require_extension("GL_KHR_my_extension");
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void require_extension(const std::string &ext);
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// Legacy GLSL compatibility method.
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// Takes a uniform or push constant variable and flattens it into a (i|u)vec4 array[N]; array instead.
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// For this to work, all types in the block must be the same basic type, e.g. mixing vec2 and vec4 is fine, but
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// mixing int and float is not.
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// The name of the uniform array will be the same as the interface block name.
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void flatten_buffer_block(uint32_t id);
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protected:
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void reset();
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void emit_function(SPIRFunction &func, const Bitset &return_flags);
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bool has_extension(const std::string &ext) const;
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void require_extension_internal(const std::string &ext);
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// Virtualize methods which need to be overridden by subclass targets like C++ and such.
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virtual void emit_function_prototype(SPIRFunction &func, const Bitset &return_flags);
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SPIRBlock *current_emitting_block = nullptr;
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SPIRBlock *current_emitting_switch = nullptr;
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virtual void emit_instruction(const Instruction &instr);
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void emit_block_instructions(SPIRBlock &block);
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virtual void emit_glsl_op(uint32_t result_type, uint32_t result_id, uint32_t op, const uint32_t *args,
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uint32_t count);
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virtual void emit_spv_amd_shader_ballot_op(uint32_t result_type, uint32_t result_id, uint32_t op,
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const uint32_t *args, uint32_t count);
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virtual void emit_spv_amd_shader_explicit_vertex_parameter_op(uint32_t result_type, uint32_t result_id, uint32_t op,
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const uint32_t *args, uint32_t count);
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virtual void emit_spv_amd_shader_trinary_minmax_op(uint32_t result_type, uint32_t result_id, uint32_t op,
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const uint32_t *args, uint32_t count);
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virtual void emit_spv_amd_gcn_shader_op(uint32_t result_type, uint32_t result_id, uint32_t op, const uint32_t *args,
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uint32_t count);
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virtual void emit_header();
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void build_workgroup_size(std::vector<std::string> &arguments, const SpecializationConstant &x,
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const SpecializationConstant &y, const SpecializationConstant &z);
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virtual void emit_sampled_image_op(uint32_t result_type, uint32_t result_id, uint32_t image_id, uint32_t samp_id);
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virtual void emit_texture_op(const Instruction &i);
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virtual void emit_subgroup_op(const Instruction &i);
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virtual std::string type_to_glsl(const SPIRType &type, uint32_t id = 0);
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virtual std::string builtin_to_glsl(spv::BuiltIn builtin, spv::StorageClass storage);
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virtual void emit_struct_member(const SPIRType &type, uint32_t member_type_id, uint32_t index,
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const std::string &qualifier = "", uint32_t base_offset = 0);
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virtual std::string image_type_glsl(const SPIRType &type, uint32_t id = 0);
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std::string constant_expression(const SPIRConstant &c);
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std::string constant_op_expression(const SPIRConstantOp &cop);
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virtual std::string constant_expression_vector(const SPIRConstant &c, uint32_t vector);
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virtual void emit_fixup();
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virtual std::string variable_decl(const SPIRType &type, const std::string &name, uint32_t id = 0);
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virtual std::string to_func_call_arg(uint32_t id);
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virtual std::string to_function_name(uint32_t img, const SPIRType &imgtype, bool is_fetch, bool is_gather,
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bool is_proj, bool has_array_offsets, bool has_offset, bool has_grad,
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bool has_dref, uint32_t lod);
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virtual std::string to_function_args(uint32_t img, const SPIRType &imgtype, bool is_fetch, bool is_gather,
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bool is_proj, uint32_t coord, uint32_t coord_components, uint32_t dref,
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uint32_t grad_x, uint32_t grad_y, uint32_t lod, uint32_t coffset,
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uint32_t offset, uint32_t bias, uint32_t comp, uint32_t sample,
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bool *p_forward);
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virtual void emit_buffer_block(const SPIRVariable &type);
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virtual void emit_push_constant_block(const SPIRVariable &var);
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virtual void emit_uniform(const SPIRVariable &var);
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virtual std::string unpack_expression_type(std::string expr_str, const SPIRType &type, uint32_t packed_type_id);
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std::unique_ptr<std::ostringstream> buffer;
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template <typename T>
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inline void statement_inner(T &&t)
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{
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(*buffer) << std::forward<T>(t);
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statement_count++;
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}
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template <typename T, typename... Ts>
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inline void statement_inner(T &&t, Ts &&... ts)
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{
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(*buffer) << std::forward<T>(t);
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statement_count++;
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statement_inner(std::forward<Ts>(ts)...);
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}
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template <typename... Ts>
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inline void statement(Ts &&... ts)
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{
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if (is_forcing_recompilation())
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{
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// Do not bother emitting code while force_recompile is active.
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// We will compile again.
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statement_count++;
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return;
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}
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if (redirect_statement)
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{
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redirect_statement->push_back(join(std::forward<Ts>(ts)...));
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statement_count++;
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}
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else
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{
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for (uint32_t i = 0; i < indent; i++)
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(*buffer) << " ";
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statement_inner(std::forward<Ts>(ts)...);
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(*buffer) << '\n';
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}
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}
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template <typename... Ts>
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inline void statement_no_indent(Ts &&... ts)
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{
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auto old_indent = indent;
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indent = 0;
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statement(std::forward<Ts>(ts)...);
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indent = old_indent;
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}
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// Used for implementing continue blocks where
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// we want to obtain a list of statements we can merge
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// on a single line separated by comma.
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std::vector<std::string> *redirect_statement = nullptr;
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const SPIRBlock *current_continue_block = nullptr;
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void begin_scope();
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void end_scope();
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void end_scope_decl();
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void end_scope_decl(const std::string &decl);
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Options options;
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std::string type_to_array_glsl(const SPIRType &type);
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std::string to_array_size(const SPIRType &type, uint32_t index);
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uint32_t to_array_size_literal(const SPIRType &type, uint32_t index) const;
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uint32_t to_array_size_literal(const SPIRType &type) const;
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std::string variable_decl(const SPIRVariable &variable);
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std::string variable_decl_function_local(SPIRVariable &variable);
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void add_local_variable_name(uint32_t id);
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void add_resource_name(uint32_t id);
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void add_member_name(SPIRType &type, uint32_t name);
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void add_function_overload(const SPIRFunction &func);
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virtual bool is_non_native_row_major_matrix(uint32_t id);
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virtual bool member_is_non_native_row_major_matrix(const SPIRType &type, uint32_t index);
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bool member_is_packed_type(const SPIRType &type, uint32_t index) const;
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virtual std::string convert_row_major_matrix(std::string exp_str, const SPIRType &exp_type, bool is_packed);
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std::unordered_set<std::string> local_variable_names;
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std::unordered_set<std::string> resource_names;
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std::unordered_set<std::string> block_input_names;
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std::unordered_set<std::string> block_output_names;
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std::unordered_set<std::string> block_ubo_names;
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std::unordered_set<std::string> block_ssbo_names;
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std::unordered_set<std::string> block_names; // A union of all block_*_names.
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std::unordered_map<std::string, std::unordered_set<uint64_t>> function_overloads;
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std::unordered_map<uint32_t, std::string> preserved_aliases;
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void preserve_alias_on_reset(uint32_t id);
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void reset_name_caches();
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bool processing_entry_point = false;
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// Can be overriden by subclass backends for trivial things which
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// shouldn't need polymorphism.
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struct BackendVariations
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{
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std::string discard_literal = "discard";
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std::string null_pointer_literal = "";
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bool float_literal_suffix = false;
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bool double_literal_suffix = true;
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bool uint32_t_literal_suffix = true;
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bool long_long_literal_suffix = false;
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const char *basic_int_type = "int";
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const char *basic_uint_type = "uint";
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const char *basic_int8_type = "int8_t";
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const char *basic_uint8_type = "uint8_t";
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const char *basic_int16_type = "int16_t";
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const char *basic_uint16_type = "uint16_t";
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const char *int16_t_literal_suffix = "s";
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const char *uint16_t_literal_suffix = "us";
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bool swizzle_is_function = false;
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bool shared_is_implied = false;
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bool flexible_member_array_supported = true;
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bool explicit_struct_type = false;
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bool use_initializer_list = false;
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bool use_typed_initializer_list = false;
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bool can_declare_struct_inline = true;
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bool can_declare_arrays_inline = true;
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bool native_row_major_matrix = true;
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bool use_constructor_splatting = true;
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bool boolean_mix_support = true;
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bool allow_precision_qualifiers = false;
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bool can_swizzle_scalar = false;
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bool force_gl_in_out_block = false;
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bool can_return_array = true;
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bool allow_truncated_access_chain = false;
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bool supports_extensions = false;
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bool supports_empty_struct = false;
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bool array_is_value_type = true;
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bool comparison_image_samples_scalar = false;
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} backend;
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void emit_struct(SPIRType &type);
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void emit_resources();
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void emit_buffer_block_native(const SPIRVariable &var);
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void emit_buffer_block_legacy(const SPIRVariable &var);
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void emit_buffer_block_flattened(const SPIRVariable &type);
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void emit_declared_builtin_block(spv::StorageClass storage, spv::ExecutionModel model);
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void emit_push_constant_block_vulkan(const SPIRVariable &var);
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void emit_push_constant_block_glsl(const SPIRVariable &var);
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void emit_interface_block(const SPIRVariable &type);
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void emit_flattened_io_block(const SPIRVariable &var, const char *qual);
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void emit_block_chain(SPIRBlock &block);
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void emit_hoisted_temporaries(std::vector<std::pair<uint32_t, uint32_t>> &temporaries);
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std::string constant_value_macro_name(uint32_t id);
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void emit_constant(const SPIRConstant &constant);
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void emit_specialization_constant_op(const SPIRConstantOp &constant);
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std::string emit_continue_block(uint32_t continue_block, bool follow_true_block, bool follow_false_block);
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bool attempt_emit_loop_header(SPIRBlock &block, SPIRBlock::Method method);
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void propagate_loop_dominators(const SPIRBlock &block);
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void branch(uint32_t from, uint32_t to);
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void branch_to_continue(uint32_t from, uint32_t to);
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void branch(uint32_t from, uint32_t cond, uint32_t true_block, uint32_t false_block);
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void flush_phi(uint32_t from, uint32_t to);
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bool flush_phi_required(uint32_t from, uint32_t to);
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void flush_variable_declaration(uint32_t id);
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void flush_undeclared_variables(SPIRBlock &block);
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bool should_dereference(uint32_t id);
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bool should_forward(uint32_t id);
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void emit_mix_op(uint32_t result_type, uint32_t id, uint32_t left, uint32_t right, uint32_t lerp);
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void emit_nminmax_op(uint32_t result_type, uint32_t id, uint32_t op0, uint32_t op1, GLSLstd450 op);
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bool to_trivial_mix_op(const SPIRType &type, std::string &op, uint32_t left, uint32_t right, uint32_t lerp);
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void emit_quaternary_func_op(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, uint32_t op2,
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uint32_t op3, const char *op);
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void emit_trinary_func_op(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, uint32_t op2,
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const char *op);
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void emit_binary_func_op(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, const char *op);
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void emit_unary_func_op_cast(uint32_t result_type, uint32_t result_id, uint32_t op0, const char *op,
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SPIRType::BaseType input_type, SPIRType::BaseType expected_result_type);
|
|
void emit_binary_func_op_cast(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, const char *op,
|
|
SPIRType::BaseType input_type, bool skip_cast_if_equal_type);
|
|
void emit_trinary_func_op_cast(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, uint32_t op2, const char *op,
|
|
SPIRType::BaseType input_type);
|
|
|
|
void emit_unary_func_op(uint32_t result_type, uint32_t result_id, uint32_t op0, const char *op);
|
|
void emit_unrolled_unary_op(uint32_t result_type, uint32_t result_id, uint32_t operand, const char *op);
|
|
void emit_binary_op(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, const char *op);
|
|
void emit_unrolled_binary_op(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, const char *op);
|
|
void emit_binary_op_cast(uint32_t result_type, uint32_t result_id, uint32_t op0, uint32_t op1, const char *op,
|
|
SPIRType::BaseType input_type, bool skip_cast_if_equal_type);
|
|
|
|
SPIRType binary_op_bitcast_helper(std::string &cast_op0, std::string &cast_op1, SPIRType::BaseType &input_type,
|
|
uint32_t op0, uint32_t op1, bool skip_cast_if_equal_type);
|
|
|
|
std::string to_ternary_expression(const SPIRType &result_type, uint32_t select, uint32_t true_value,
|
|
uint32_t false_value);
|
|
|
|
void emit_unary_op(uint32_t result_type, uint32_t result_id, uint32_t op0, const char *op);
|
|
bool expression_is_forwarded(uint32_t id);
|
|
SPIRExpression &emit_op(uint32_t result_type, uint32_t result_id, const std::string &rhs, bool forward_rhs,
|
|
bool suppress_usage_tracking = false);
|
|
|
|
std::string access_chain_internal(uint32_t base, const uint32_t *indices, uint32_t count, AccessChainFlags flags,
|
|
AccessChainMeta *meta);
|
|
|
|
std::string access_chain(uint32_t base, const uint32_t *indices, uint32_t count, const SPIRType &target_type,
|
|
AccessChainMeta *meta = nullptr, bool ptr_chain = false);
|
|
|
|
std::string flattened_access_chain(uint32_t base, const uint32_t *indices, uint32_t count,
|
|
const SPIRType &target_type, uint32_t offset, uint32_t matrix_stride,
|
|
bool need_transpose);
|
|
std::string flattened_access_chain_struct(uint32_t base, const uint32_t *indices, uint32_t count,
|
|
const SPIRType &target_type, uint32_t offset);
|
|
std::string flattened_access_chain_matrix(uint32_t base, const uint32_t *indices, uint32_t count,
|
|
const SPIRType &target_type, uint32_t offset, uint32_t matrix_stride,
|
|
bool need_transpose);
|
|
std::string flattened_access_chain_vector(uint32_t base, const uint32_t *indices, uint32_t count,
|
|
const SPIRType &target_type, uint32_t offset, uint32_t matrix_stride,
|
|
bool need_transpose);
|
|
std::pair<std::string, uint32_t> flattened_access_chain_offset(const SPIRType &basetype, const uint32_t *indices,
|
|
uint32_t count, uint32_t offset,
|
|
uint32_t word_stride, bool *need_transpose = nullptr,
|
|
uint32_t *matrix_stride = nullptr,
|
|
bool ptr_chain = false);
|
|
|
|
const char *index_to_swizzle(uint32_t index);
|
|
std::string remap_swizzle(const SPIRType &result_type, uint32_t input_components, const std::string &expr);
|
|
std::string declare_temporary(uint32_t type, uint32_t id);
|
|
void append_global_func_args(const SPIRFunction &func, uint32_t index, std::vector<std::string> &arglist);
|
|
std::string to_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_enclosed_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_unpacked_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_enclosed_unpacked_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_dereferenced_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_pointer_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_enclosed_pointer_expression(uint32_t id, bool register_expression_read = true);
|
|
std::string to_extract_component_expression(uint32_t id, uint32_t index);
|
|
std::string enclose_expression(const std::string &expr);
|
|
std::string dereference_expression(const std::string &expr);
|
|
std::string address_of_expression(const std::string &expr);
|
|
void strip_enclosed_expression(std::string &expr);
|
|
std::string to_member_name(const SPIRType &type, uint32_t index);
|
|
virtual std::string to_member_reference(uint32_t base, const SPIRType &type, uint32_t index, bool ptr_chain);
|
|
std::string type_to_glsl_constructor(const SPIRType &type);
|
|
std::string argument_decl(const SPIRFunction::Parameter &arg);
|
|
virtual std::string to_qualifiers_glsl(uint32_t id);
|
|
const char *to_precision_qualifiers_glsl(uint32_t id);
|
|
virtual const char *to_storage_qualifiers_glsl(const SPIRVariable &var);
|
|
const char *flags_to_precision_qualifiers_glsl(const SPIRType &type, const Bitset &flags);
|
|
const char *format_to_glsl(spv::ImageFormat format);
|
|
virtual std::string layout_for_member(const SPIRType &type, uint32_t index);
|
|
virtual std::string to_interpolation_qualifiers(const Bitset &flags);
|
|
std::string layout_for_variable(const SPIRVariable &variable);
|
|
std::string to_combined_image_sampler(uint32_t image_id, uint32_t samp_id);
|
|
virtual bool skip_argument(uint32_t id) const;
|
|
virtual void emit_array_copy(const std::string &lhs, uint32_t rhs_id);
|
|
virtual void emit_block_hints(const SPIRBlock &block);
|
|
virtual std::string to_initializer_expression(const SPIRVariable &var);
|
|
|
|
bool buffer_is_packing_standard(const SPIRType &type, BufferPackingStandard packing, uint32_t start_offset = 0,
|
|
uint32_t end_offset = ~(0u));
|
|
uint32_t type_to_packed_base_size(const SPIRType &type, BufferPackingStandard packing);
|
|
uint32_t type_to_packed_alignment(const SPIRType &type, const Bitset &flags, BufferPackingStandard packing);
|
|
uint32_t type_to_packed_array_stride(const SPIRType &type, const Bitset &flags, BufferPackingStandard packing);
|
|
uint32_t type_to_packed_size(const SPIRType &type, const Bitset &flags, BufferPackingStandard packing);
|
|
|
|
std::string bitcast_glsl(const SPIRType &result_type, uint32_t arg);
|
|
virtual std::string bitcast_glsl_op(const SPIRType &result_type, const SPIRType &argument_type);
|
|
|
|
std::string bitcast_expression(SPIRType::BaseType target_type, uint32_t arg);
|
|
std::string bitcast_expression(const SPIRType &target_type, SPIRType::BaseType expr_type, const std::string &expr);
|
|
|
|
std::string build_composite_combiner(uint32_t result_type, const uint32_t *elems, uint32_t length);
|
|
bool remove_duplicate_swizzle(std::string &op);
|
|
bool remove_unity_swizzle(uint32_t base, std::string &op);
|
|
|
|
// Can modify flags to remote readonly/writeonly if image type
|
|
// and force recompile.
|
|
bool check_atomic_image(uint32_t id);
|
|
|
|
virtual void replace_illegal_names();
|
|
virtual void emit_entry_point_declarations();
|
|
|
|
void replace_fragment_output(SPIRVariable &var);
|
|
void replace_fragment_outputs();
|
|
bool check_explicit_lod_allowed(uint32_t lod);
|
|
std::string legacy_tex_op(const std::string &op, const SPIRType &imgtype, uint32_t lod, uint32_t id);
|
|
|
|
uint32_t indent = 0;
|
|
|
|
std::unordered_set<uint32_t> emitted_functions;
|
|
|
|
std::unordered_set<uint32_t> flattened_buffer_blocks;
|
|
std::unordered_set<uint32_t> flattened_structs;
|
|
|
|
std::string load_flattened_struct(SPIRVariable &var);
|
|
std::string to_flattened_struct_member(const SPIRVariable &var, uint32_t index);
|
|
void store_flattened_struct(SPIRVariable &var, uint32_t value);
|
|
|
|
// Usage tracking. If a temporary is used more than once, use the temporary instead to
|
|
// avoid AST explosion when SPIRV is generated with pure SSA and doesn't write stuff to variables.
|
|
std::unordered_map<uint32_t, uint32_t> expression_usage_counts;
|
|
void track_expression_read(uint32_t id);
|
|
|
|
std::vector<std::string> forced_extensions;
|
|
std::vector<std::string> header_lines;
|
|
|
|
// Used when expressions emit extra opcodes with their own unique IDs,
|
|
// and we need to reuse the IDs across recompilation loops.
|
|
// Currently used by NMin/Max/Clamp implementations.
|
|
std::unordered_map<uint32_t, uint32_t> extra_sub_expressions;
|
|
|
|
uint32_t statement_count;
|
|
|
|
inline bool is_legacy() const
|
|
{
|
|
return (options.es && options.version < 300) || (!options.es && options.version < 130);
|
|
}
|
|
|
|
inline bool is_legacy_es() const
|
|
{
|
|
return options.es && options.version < 300;
|
|
}
|
|
|
|
inline bool is_legacy_desktop() const
|
|
{
|
|
return !options.es && options.version < 130;
|
|
}
|
|
|
|
bool args_will_forward(uint32_t id, const uint32_t *args, uint32_t num_args, bool pure);
|
|
void register_call_out_argument(uint32_t id);
|
|
void register_impure_function_call();
|
|
void register_control_dependent_expression(uint32_t expr);
|
|
|
|
// GL_EXT_shader_pixel_local_storage support.
|
|
std::vector<PlsRemap> pls_inputs;
|
|
std::vector<PlsRemap> pls_outputs;
|
|
std::string pls_decl(const PlsRemap &variable);
|
|
const char *to_pls_qualifiers_glsl(const SPIRVariable &variable);
|
|
void emit_pls();
|
|
void remap_pls_variables();
|
|
|
|
// A variant which takes two sets of name. The secondary is only used to verify there are no collisions,
|
|
// but the set is not updated when we have found a new name.
|
|
// Used primarily when adding block interface names.
|
|
void add_variable(std::unordered_set<std::string> &variables_primary,
|
|
const std::unordered_set<std::string> &variables_secondary, std::string &name);
|
|
|
|
void check_function_call_constraints(const uint32_t *args, uint32_t length);
|
|
void handle_invalid_expression(uint32_t id);
|
|
void find_static_extensions();
|
|
|
|
std::string emit_for_loop_initializers(const SPIRBlock &block);
|
|
void emit_while_loop_initializers(const SPIRBlock &block);
|
|
bool for_loop_initializers_are_same_type(const SPIRBlock &block);
|
|
bool optimize_read_modify_write(const SPIRType &type, const std::string &lhs, const std::string &rhs);
|
|
void fixup_image_load_store_access();
|
|
|
|
bool type_is_empty(const SPIRType &type);
|
|
|
|
virtual void declare_undefined_values();
|
|
|
|
static std::string sanitize_underscores(const std::string &str);
|
|
|
|
bool can_use_io_location(spv::StorageClass storage, bool block);
|
|
const Instruction *get_next_instruction_in_block(const Instruction &instr);
|
|
static uint32_t mask_relevant_memory_semantics(uint32_t semantics);
|
|
|
|
std::string convert_half_to_string(const SPIRConstant &value, uint32_t col, uint32_t row);
|
|
std::string convert_float_to_string(const SPIRConstant &value, uint32_t col, uint32_t row);
|
|
std::string convert_double_to_string(const SPIRConstant &value, uint32_t col, uint32_t row);
|
|
|
|
std::string convert_separate_image_to_expression(uint32_t id);
|
|
|
|
// Builtins in GLSL are always specific signedness, but the SPIR-V can declare them
|
|
// as either unsigned or signed.
|
|
// Sometimes we will need to automatically perform bitcasts on load and store to make this work.
|
|
virtual void bitcast_to_builtin_store(uint32_t target_id, std::string &expr, const SPIRType &expr_type);
|
|
virtual void bitcast_from_builtin_load(uint32_t source_id, std::string &expr, const SPIRType &expr_type);
|
|
void unroll_array_from_complex_load(uint32_t target_id, uint32_t source_id, std::string &expr);
|
|
|
|
void handle_store_to_invariant_variable(uint32_t store_id, uint32_t value_id);
|
|
void disallow_forwarding_in_expression_chain(const SPIRExpression &expr);
|
|
|
|
bool expression_is_constant_null(uint32_t id) const;
|
|
virtual void emit_store_statement(uint32_t lhs_expression, uint32_t rhs_expression);
|
|
|
|
uint32_t get_integer_width_for_instruction(const Instruction &instr) const;
|
|
uint32_t get_integer_width_for_glsl_instruction(GLSLstd450 op, const uint32_t *arguments, uint32_t length) const;
|
|
|
|
bool variable_is_lut(const SPIRVariable &var) const;
|
|
|
|
char current_locale_radix_character = '.';
|
|
|
|
private:
|
|
void init();
|
|
};
|
|
} // namespace spirv_cross
|
|
|
|
#endif
|