Merge pull request #9508 from ameerj/hle-ipc-buffer-span

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

2 files changed, 5 insertions, 3 deletions

diff --git a/src/core/hle/service/hid/controllers/npad.cpp b/src/core/hle/service/hid/controllers/npad.cpp
index 5713f1288..84edc8839 100644
--- a/src/core/hle/service/hid/controllers/npad.cpp
+++ b/src/core/hle/service/hid/controllers/npad.cpp
@@ -755,11 +755,12 @@ Core::HID::NpadStyleTag Controller_NPad::GetSupportedStyleSet() const {
     return hid_core.GetSupportedStyleTag();
 }
 
-void Controller_NPad::SetSupportedNpadIdTypes(u8* data, std::size_t length) {
+void Controller_NPad::SetSupportedNpadIdTypes(std::span<const u8> data) {
+    const auto length = data.size();
     ASSERT(length > 0 && (length % sizeof(u32)) == 0);
     supported_npad_id_types.clear();
     supported_npad_id_types.resize(length / sizeof(u32));
-    std::memcpy(supported_npad_id_types.data(), data, length);
+    std::memcpy(supported_npad_id_types.data(), data.data(), length);
 }
 
 void Controller_NPad::GetSupportedNpadIdTypes(u32* data, std::size_t max_length) {
diff --git a/src/core/hle/service/hid/controllers/npad.h b/src/core/hle/service/hid/controllers/npad.h
index 1a589cca2..1f7d33459 100644
--- a/src/core/hle/service/hid/controllers/npad.h
+++ b/src/core/hle/service/hid/controllers/npad.h
@@ -6,6 +6,7 @@
 #include <array>
 #include <atomic>
 #include <mutex>
+#include <span>
 
 #include "common/bit_field.h"
 #include "common/common_types.h"
@@ -95,7 +96,7 @@ public:
     void SetSupportedStyleSet(Core::HID::NpadStyleTag style_set);
     Core::HID::NpadStyleTag GetSupportedStyleSet() const;
 
-    void SetSupportedNpadIdTypes(u8* data, std::size_t length);
+    void SetSupportedNpadIdTypes(std::span<const u8> data);
     void GetSupportedNpadIdTypes(u32* data, std::size_t max_length);
     std::size_t GetSupportedNpadIdTypesSize() const;