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cpu_detect: Update array-types to span and array

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Update some uses of `int` into some more explicitly sized types as well
This commit is contained in:
Wunkolo 2022-02-23 10:43:41 -08:00
parent 3c33ba7f18
commit 86e9e60f07
1 changed files with 13 additions and 11 deletions
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24
src/common/x64/cpu_detect.cpp
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@ -1,7 +1,9 @@
// Copyright 2013 Dolphin Emulator Project / 2015 Citra Emulator Project / 2022 Yuzu Emulator
// Project Licensed under GPLv2 or any later version Refer to the license.txt file included.
#include <array>
#include <cstring>
#include <span>
#include "common/bit_util.h"
#include "common/common_types.h"
#include "common/x64/cpu_detect.h"
@ -17,7 +19,7 @@
// clang-format on
#endif
static inline void __cpuidex(int info[4], int function_id, int subfunction_id) {
static inline void __cpuidex(const std::span<u32, 4> info, u32 function_id, u32 subfunction_id) {
#if defined(__DragonFly__) || defined(__FreeBSD__)
// Despite the name, this is just do_cpuid() with ECX as second input.
cpuid_count((u_int)function_id, (u_int)subfunction_id, (u_int*)info);
@ -30,7 +32,7 @@ static inline void __cpuidex(int info[4], int function_id, int subfunction_id) {
#endif
}
static inline void __cpuid(int info[4], int function_id) {
static inline void __cpuid(const std::span<u32, 4> info, u32 function_id) {
return __cpuidex(info, function_id, 0);
}
@ -52,16 +54,16 @@ static CPUCaps Detect() {
// Assumes the CPU supports the CPUID instruction. Those that don't would likely not support
// yuzu at all anyway
int cpu_id[4];
memset(caps.brand_string, 0, sizeof(caps.brand_string));
std::array<u32, 4> cpu_id;
std::memset(caps.brand_string, 0, sizeof(caps.brand_string));
// Detect CPU's CPUID capabilities and grab CPU string
__cpuid(cpu_id, 0x00000000);
u32 max_std_fn = cpu_id[0]; // EAX
std::memcpy(&caps.brand_string[0], &cpu_id[1], sizeof(int));
std::memcpy(&caps.brand_string[4], &cpu_id[3], sizeof(int));
std::memcpy(&caps.brand_string[8], &cpu_id[2], sizeof(int));
std::memcpy(&caps.brand_string[0], &cpu_id[1], sizeof(u32));
std::memcpy(&caps.brand_string[4], &cpu_id[3], sizeof(u32));
std::memcpy(&caps.brand_string[8], &cpu_id[2], sizeof(u32));
if (cpu_id[1] == 0x756e6547 && cpu_id[2] == 0x6c65746e && cpu_id[3] == 0x49656e69)
caps.manufacturer = Manufacturer::Intel;
else if (cpu_id[1] == 0x68747541 && cpu_id[2] == 0x444d4163 && cpu_id[3] == 0x69746e65)
@ -76,7 +78,7 @@ static CPUCaps Detect() {
u32 max_ex_fn = cpu_id[0];
// Set reasonable default brand string even if brand string not available
strcpy(caps.cpu_string, caps.brand_string);
std::strcpy(caps.cpu_string, caps.brand_string);
// Detect family and other miscellaneous features
if (max_std_fn >= 1) {
@ -119,11 +121,11 @@ static CPUCaps Detect() {
if (max_ex_fn >= 0x80000004) {
// Extract CPU model string
__cpuid(cpu_id, 0x80000002);
std::memcpy(caps.cpu_string, cpu_id, sizeof(cpu_id));
std::memcpy(caps.cpu_string, cpu_id.data(), sizeof(cpu_id));
__cpuid(cpu_id, 0x80000003);
std::memcpy(caps.cpu_string + 16, cpu_id, sizeof(cpu_id));
std::memcpy(caps.cpu_string + 16, cpu_id.data(), sizeof(cpu_id));
__cpuid(cpu_id, 0x80000004);
std::memcpy(caps.cpu_string + 32, cpu_id, sizeof(cpu_id));
std::memcpy(caps.cpu_string + 32, cpu_id.data(), sizeof(cpu_id));
}
if (max_ex_fn >= 0x80000001) {