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hle_ipc: Refactor ReadBuffer to set buffer size upon initialization

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Initializing the vector size during initialization is more efficient than a later call to resize()
This commit is contained in:
ameerj 2022-12-15 23:22:11 -05:00
parent 9ff891ce71
commit b1d633532f
1 changed files with 6 additions and 8 deletions
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14
src/core/hle/kernel/hle_ipc.cpp
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@ -318,25 +318,23 @@ Result HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_threa
}
std::vector<u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const {
std::vector<u8> buffer{};
const bool is_buffer_a{BufferDescriptorA().size() > buffer_index &&
BufferDescriptorA()[buffer_index].Size()};
if (is_buffer_a) {
ASSERT_OR_EXECUTE_MSG(
BufferDescriptorA().size() > buffer_index, { return buffer; },
BufferDescriptorA().size() > buffer_index, { return {}; },
"BufferDescriptorA invalid buffer_index {}", buffer_index);
buffer.resize(BufferDescriptorA()[buffer_index].Size());
std::vector<u8> buffer(BufferDescriptorA()[buffer_index].Size());
memory.ReadBlock(BufferDescriptorA()[buffer_index].Address(), buffer.data(), buffer.size());
return buffer;
} else {
ASSERT_OR_EXECUTE_MSG(
BufferDescriptorX().size() > buffer_index, { return buffer; },
BufferDescriptorX().size() > buffer_index, { return {}; },
"BufferDescriptorX invalid buffer_index {}", buffer_index);
buffer.resize(BufferDescriptorX()[buffer_index].Size());
std::vector<u8> buffer(BufferDescriptorX()[buffer_index].Size());
memory.ReadBlock(BufferDescriptorX()[buffer_index].Address(), buffer.data(), buffer.size());
}
return buffer;
}
}
std::size_t HLERequestContext::WriteBuffer(const void* buffer, std::size_t size,