spv_result_t spvBinaryHeaderGet(const spv_const_binary binary,
const spv_endianness_t endian,
spv_header_t* pHeader) {
if (!binary->code) return SPV_ERROR_INVALID_BINARY;
if (binary->wordCount < SPV_INDEX_INSTRUCTION)
return SPV_ERROR_INVALID_BINARY;
if (!pHeader) return SPV_ERROR_INVALID_POINTER;
// TODO: Validation checking?
pHeader->magic = spvFixWord(binary->code[SPV_INDEX_MAGIC_NUMBER], endian);
pHeader->version = spvFixWord(binary->code[SPV_INDEX_VERSION_NUMBER], endian);
pHeader->generator =
spvFixWord(binary->code[SPV_INDEX_GENERATOR_NUMBER], endian);
pHeader->bound = spvFixWord(binary->code[SPV_INDEX_BOUND], endian);
pHeader->schema = spvFixWord(binary->code[SPV_INDEX_SCHEMA], endian);
pHeader->instructions = &binary->code[SPV_INDEX_INSTRUCTION];
return SPV_SUCCESS;
}
void spvInstructionCopy(const uint32_t* words, const SpvOp opcode,
const uint16_t wordCount, const spv_endianness_t endian,
spv_instruction_t* pInst) {
pInst->opcode = opcode;
pInst->words.resize(wordCount);
for (uint16_t wordIndex = 0; wordIndex < wordCount; ++wordIndex) {
pInst->words[wordIndex] = spvFixWord(words[wordIndex], endian);
if (!wordIndex) {
uint16_t thisWordCount;
uint16_t thisOpcode;
spvOpcodeSplit(pInst->words[wordIndex], &thisWordCount, &thisOpcode);
assert(opcode == static_cast<SpvOp>(thisOpcode) &&
wordCount == thisWordCount && "Endianness failed!");
}
}
}