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https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-25 13:00:04 +00:00
Moves parser interface to libspirv.h.
This commit is contained in:
Lei Zhang
David Neto
parent
8984f6f31f
commit
a23a73671a
@ -229,6 +229,18 @@ typedef enum spv_ext_inst_type_t {
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SPV_FORCE_32_BIT_ENUM(spv_ext_inst_type_t)
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} spv_ext_inst_type_t;
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// This determines at a high level the kind of a binary-encoded literal
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// number, but not the bit width.
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// In principle, these could probably be folded into new entries in
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// spv_operand_type_t. But then we'd have some special case differences
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// between the assembler and disassembler.
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typedef enum spv_number_kind_t {
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SPV_NUMBER_NONE = 0, // The default for value initialization.
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SPV_NUMBER_UNSIGNED_INT,
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SPV_NUMBER_SIGNED_INT,
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SPV_NUMBER_FLOATING,
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} spv_number_kind_t;
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typedef enum spv_binary_to_text_options_t {
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SPV_BINARY_TO_TEXT_OPTION_NONE = SPV_BIT(0),
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SPV_BINARY_TO_TEXT_OPTION_PRINT = SPV_BIT(1),
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@ -248,6 +260,41 @@ typedef enum spv_validate_options_t {
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// Structures
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// Information about an operand parsed from a binary SPIR-V module.
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// Note that the values are not included. You still need access to the binary
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// to extract the values.
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typedef struct spv_parsed_operand_t {
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// Location of the operand, in words from the start of the instruction.
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uint16_t offset;
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// Number of words occupied by this operand.
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uint16_t num_words;
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// The "concrete" operand type. See the definition of spv_operand_type_t
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// for details.
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spv_operand_type_t type;
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// If type is a literal number type, then number_kind says whether it's
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// a signed integer, an unsigned integer, or a floating point number.
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spv_number_kind_t number_kind;
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// The number of bits for a literal number type.
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uint32_t number_bit_width;
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} spv_parsed_operand_t;
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// An instruction parsed from a binary SPIR-V module.
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typedef struct spv_parsed_instruction_t {
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// Location of the instruction, in words from the start of the SPIR-V binary.
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size_t offset;
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SpvOp opcode;
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// The extended instruction type, if opcode is OpExtInst. Otherwise
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// this is the "none" value.
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spv_ext_inst_type_t ext_inst_type;
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// The type id, or 0 if this instruction doesn't have one.
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uint32_t type_id;
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// The result id, or 0 if this instruction doesn't have one.
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uint32_t result_id;
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// The array of parsed operands.
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const spv_parsed_operand_t* operands;
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uint16_t num_operands;
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} spv_parsed_instruction_t;
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typedef struct spv_const_binary_t {
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const uint32_t* code;
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const size_t wordCount;
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@ -324,6 +371,38 @@ void spvDiagnosticDestroy(spv_diagnostic diagnostic);
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// Prints the diagnostic to stderr.
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spv_result_t spvDiagnosticPrint(const spv_diagnostic diagnostic);
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// The binary parser interface.
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// A pointer to a function that accepts a parsed SPIR-V header.
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// The integer arguments are the 32-bit words from the header, as specified
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// in SPIR-V 1.0 Section 2.3 Table 1.
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// The function should return SPV_SUCCESS if parsing should continue.
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typedef spv_result_t (*spv_parsed_header_fn_t)(
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void* user_data, spv_endianness_t endian, uint32_t magic, uint32_t version,
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uint32_t generator, uint32_t id_bound, uint32_t reserved);
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// A pointer to a function that accepts a parsed SPIR-V instruction.
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// The parsed_instruction value is transient: it may be overwritten
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// or released immediately after the function has returned. The function
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// should return SPV_SUCCESS if and only if parsing should continue.
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typedef spv_result_t (*spv_parsed_instruction_fn_t)(
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void* user_data, const spv_parsed_instruction_t* parsed_instruction);
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// Parses a SPIR-V binary, specified as counted sequence of 32-bit words.
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// Parsing feedback is provided via two callbacks. In a valid parse, the
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// parsed-header callback is called once, and then the parsed-instruction
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// callback once for each instruction in the stream. The user_data parameter
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// is supplied as context to the callbacks. Returns SPV_SUCCESS on successful
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// parse where the callbacks always return SPV_SUCCESS. For an invalid parse,
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// returns SPV_ERROR_INVALID_BINARY and emits a diagnostic. If a callback
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// returns anything other than SPV_SUCCESS, then that error code is returned
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// and parsing terminates early.
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spv_result_t spvBinaryParse(void* user_data, const uint32_t* words,
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const size_t num_words,
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spv_parsed_header_fn_t parse_header,
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spv_parsed_instruction_fn_t parse_instruction,
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spv_diagnostic* diagnostic);
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#ifdef __cplusplus
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}
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#endif
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@ -30,91 +30,6 @@
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#include "libspirv/libspirv.h"
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#include "table.h"
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// TODO(dneto): Move spvBinaryParse and related type definitions to libspirv.h
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extern "C" {
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// The parser interface.
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// This is a C interface because we expect to expose this to clients of the
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// SPIR-V Tools C API.
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// A pointer to a function that accepts a parsed SPIR-V header.
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// The integer arguments are the 32-bit words from the header, as specified
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// in SPIR-V 1.0 Section 2.3 Table 1.
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// The function should return SPV_SUCCESS if parsing should continue.
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typedef spv_result_t (*spv_parsed_header_fn_t)(
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void* user_data, spv_endianness_t endian, uint32_t magic, uint32_t version,
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uint32_t generator, uint32_t id_bound, uint32_t reserved);
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// Number kind. This determines the format at a high level, but not
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// the bit width.
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// In principle, these could probably be folded into new entries in
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// spv_operand_type_t. But then we'd have some special case differences
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// between the assembler and disassembler.
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typedef enum spv_number_kind_t {
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SPV_NUMBER_NONE = 0, // The default for value initialization.
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SPV_NUMBER_UNSIGNED_INT,
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SPV_NUMBER_SIGNED_INT,
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SPV_NUMBER_FLOATING,
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} spv_number_kind_t;
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// Information about a parsed operand. Note that the values are not
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// included. You still need access to the binary to extract the values.
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typedef struct spv_parsed_operand_t {
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// Location of the operand, in words from the start of the instruction.
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uint16_t offset;
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// Number of words occupied by this operand.
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uint16_t num_words;
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// The "concrete" operand type. See the definition of spv_operand_type_t
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// for details.
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spv_operand_type_t type;
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// If type is a literal number type, then number_kind says whether it's
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// a signed integer, an unsigned integer, or a floating point number.
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spv_number_kind_t number_kind;
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// The number of bits for a literal number type.
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uint32_t number_bit_width;
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} spv_parsed_operand_info_t;
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// A parsed instruction.
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typedef struct spv_parsed_instruction_t {
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// Location of the instruction, in words from the start of the SPIR-V binary.
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size_t offset;
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SpvOp opcode;
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// The extended instruction type, if opcode is OpExtInst. Otherwise
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// this is the "none" value.
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spv_ext_inst_type_t ext_inst_type;
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// The type id, or 0 if this instruction doesn't have one.
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uint32_t type_id;
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// The result id, or 0 if this instruction doesn't have one.
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uint32_t result_id;
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// The array of parsed operands.
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const spv_parsed_operand_t* operands;
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uint16_t num_operands;
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} spv_parsed_instruction_t;
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// A pointer to a function that accepts a parsed SPIR-V instruction.
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// The parsed_instruction value is transient: it may be overwritten
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// or released immediately after the function has returned. The function
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// should return SPV_SUCCESS if and only if parsing should continue.
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typedef spv_result_t (*spv_parsed_instruction_fn_t)(
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void* user_data, const spv_parsed_instruction_t* parsed_instruction);
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// Parses a SPIR-V binary, specified as counted sequence of 32-bit words.
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// Parsing feedback is provided via two callbacks. In a valid parse, the
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// parsed-header callback is called once, and then the parsed-instruction
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// callback once for each instruction in the stream. The user_data parameter
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// is supplied as context to the callbacks. Returns SPV_SUCCESS on successful
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// parse where the callbacks always return SPV_SUCCESS. For an invalid parse,
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// returns SPV_ERROR_INVALID_BINARY and emits a diagnostic. If a callback
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// returns anything other than SPV_SUCCESS, then that error code is returned
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// and parsing terminates early.
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spv_result_t spvBinaryParse(void* user_data, const uint32_t* words,
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const size_t num_words,
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spv_parsed_header_fn_t parse_header,
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spv_parsed_instruction_fn_t parse_instruction,
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spv_diagnostic* diagnostic);
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} // extern "C"
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// Functions
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/// @brief Grab the header from the SPV module
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