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Revert "hle_ipc: Use std::span to avoid heap allocations/copies when calling ReadBuffer"

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liamwhite 2023-02-02 15:53:28 -05:00 • committed by GitHub
parent 8a33f8bd30
commit b01698775b
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GPG key ID: 4AEE18F83AFDEB23
61 changed files with 326 additions and 368 deletions
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30
src/core/hle/kernel/hle_ipc.cpp
View file

@ -11,7 +11,6 @@
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/logging/log.h"
#include "common/scratch_buffer.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/kernel/k_auto_object.h"
@ -326,7 +325,7 @@ Result HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_threa
return ResultSuccess;
}
std::vector<u8> HLERequestContext::ReadBufferCopy(std::size_t buffer_index) const {
std::vector<u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const {
const bool is_buffer_a{BufferDescriptorA().size() > buffer_index &&
BufferDescriptorA()[buffer_index].Size()};
if (is_buffer_a) {
@ -346,33 +345,6 @@ std::vector<u8> HLERequestContext::ReadBufferCopy(std::size_t buffer_index) cons
}
}
std::span<const u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const {
static thread_local std::array<Common::ScratchBuffer<u8>, 2> read_buffer_a;
static thread_local std::array<Common::ScratchBuffer<u8>, 2> read_buffer_x;
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 {}; },
"BufferDescriptorA invalid buffer_index {}", buffer_index);
auto& read_buffer = read_buffer_a[buffer_index];
read_buffer.resize_destructive(BufferDescriptorA()[buffer_index].Size());
memory.ReadBlock(BufferDescriptorA()[buffer_index].Address(), read_buffer.data(),
read_buffer.size());
return read_buffer;
} else {
ASSERT_OR_EXECUTE_MSG(
BufferDescriptorX().size() > buffer_index, { return {}; },
"BufferDescriptorX invalid buffer_index {}", buffer_index);
auto& read_buffer = read_buffer_x[buffer_index];
read_buffer.resize_destructive(BufferDescriptorX()[buffer_index].Size());
memory.ReadBlock(BufferDescriptorX()[buffer_index].Address(), read_buffer.data(),
read_buffer.size());
return read_buffer;
}
}
std::size_t HLERequestContext::WriteBuffer(const void* buffer, std::size_t size,
std::size_t buffer_index) const {
if (size == 0) {

8
src/core/hle/kernel/hle_ipc.h
View file

@ -7,7 +7,6 @@
#include <functional>
#include <memory>
#include <optional>
#include <span>
#include <string>
#include <type_traits>
#include <vector>
@ -271,11 +270,8 @@ public:
return domain_message_header.has_value();
}
/// Helper function to get a span of a buffer using the appropriate buffer descriptor
[[nodiscard]] std::span<const u8> ReadBuffer(std::size_t buffer_index = 0) const;
/// Helper function to read a copy of a buffer using the appropriate buffer descriptor
[[nodiscard]] std::vector<u8> ReadBufferCopy(std::size_t buffer_index = 0) const;
/// Helper function to read a buffer using the appropriate buffer descriptor
[[nodiscard]] std::vector<u8> ReadBuffer(std::size_t buffer_index = 0) const;
/// Helper function to write a buffer using the appropriate buffer descriptor
std::size_t WriteBuffer(const void* buffer, std::size_t size,