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-rw-r--r--src/core/hle/kernel/hle_ipc.cpp30
-rw-r--r--src/core/hle/kernel/hle_ipc.h8
2 files changed, 35 insertions, 3 deletions
diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp
index 738b6d0f1..494151eef 100644
--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -11,6 +11,7 @@
#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"
@@ -325,7 +326,7 @@ Result HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_threa
return ResultSuccess;
}
-std::vector<u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const {
+std::vector<u8> HLERequestContext::ReadBufferCopy(std::size_t buffer_index) const {
const bool is_buffer_a{BufferDescriptorA().size() > buffer_index &&
BufferDescriptorA()[buffer_index].Size()};
if (is_buffer_a) {
@@ -345,6 +346,33 @@ std::vector<u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const {
}
}
+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) {
diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h
index e252b5f4b..5bf4f171b 100644
--- a/src/core/hle/kernel/hle_ipc.h
+++ b/src/core/hle/kernel/hle_ipc.h
@@ -7,6 +7,7 @@
#include <functional>
#include <memory>
#include <optional>
+#include <span>
#include <string>
#include <type_traits>
#include <vector>
@@ -270,8 +271,11 @@ public:
return domain_message_header.has_value();
}
- /// 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 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 write a buffer using the appropriate buffer descriptor
std::size_t WriteBuffer(const void* buffer, std::size_t size,