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common/host_shader: Load Windows 10 functions dynamically

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Workaround old headers and libraries shipped on MinGW.
This commit is contained in:
ReinUsesLisp 2021-06-08 02:14:12 -03:00 committed by Markus Wick
parent 588ab44470
commit f332d4a9b5
1 changed files with 88 additions and 29 deletions
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117
src/common/host_memory.cpp
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@ -1,18 +1,10 @@
#ifdef _WIN32
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x0A00 // Windows 10
#include <windows.h>
#include <boost/icl/separate_interval_set.hpp>
#include <iterator>
#include <unordered_map>
#pragma comment(lib, "mincore.lib")
#include <boost/icl/separate_interval_set.hpp>
#include <windows.h>
#include "common/dynamic_library.h"
#elif defined(__linux__) // ^^^ Windows ^^^ vvv Linux vvv
@ -40,38 +32,99 @@ constexpr size_t HugePageSize = 0x200000;
#ifdef _WIN32
// Manually imported for MinGW compatibility
#ifndef MEM_RESERVE_PLACEHOLDER
#define MEM_RESERVE_PLACEHOLDER 0x0004000
#endif
#ifndef MEM_REPLACE_PLACEHOLDER
#define MEM_REPLACE_PLACEHOLDER 0x00004000
#endif
#ifndef MEM_COALESCE_PLACEHOLDERS
#define MEM_COALESCE_PLACEHOLDERS 0x00000001
#endif
#ifndef MEM_PRESERVE_PLACEHOLDER
#define MEM_PRESERVE_PLACEHOLDER 0x00000002
#endif
using PFN_CreateFileMapping2 = _Ret_maybenull_ HANDLE(WINAPI*)(
_In_ HANDLE File, _In_opt_ SECURITY_ATTRIBUTES* SecurityAttributes, _In_ ULONG DesiredAccess,
_In_ ULONG PageProtection, _In_ ULONG AllocationAttributes, _In_ ULONG64 MaximumSize,
_In_opt_ PCWSTR Name,
_Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
_In_ ULONG ParameterCount);
using PFN_VirtualAlloc2 = _Ret_maybenull_ PVOID(WINAPI*)(
_In_opt_ HANDLE Process, _In_opt_ PVOID BaseAddress, _In_ SIZE_T Size,
_In_ ULONG AllocationType, _In_ ULONG PageProtection,
_Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
_In_ ULONG ParameterCount);
using PFN_MapViewOfFile3 = _Ret_maybenull_ PVOID(WINAPI*)(
_In_ HANDLE FileMapping, _In_opt_ HANDLE Process, _In_opt_ PVOID BaseAddress,
_In_ ULONG64 Offset, _In_ SIZE_T ViewSize, _In_ ULONG AllocationType, _In_ ULONG PageProtection,
_Inout_updates_opt_(ParameterCount) MEM_EXTENDED_PARAMETER* ExtendedParameters,
_In_ ULONG ParameterCount);
using PFN_UnmapViewOfFile2 = BOOL(WINAPI*)(_In_ HANDLE Process, _In_ PVOID BaseAddress,
_In_ ULONG UnmapFlags);
template <typename T>
static void GetFuncAddress(Common::DynamicLibrary& dll, const char* name, T& pfn) {
if (!dll.GetSymbol(name, &pfn)) {
LOG_CRITICAL(HW_Memory, "Failed to load {}", name);
throw std::bad_alloc{};
}
}
class HostMemory::Impl {
public:
explicit Impl(size_t backing_size_, size_t virtual_size_)
: backing_size{backing_size_}, virtual_size{virtual_size_}, process{GetCurrentProcess()} {
: backing_size{backing_size_}, virtual_size{virtual_size_}, process{GetCurrentProcess()},
kernelbase_dll("Kernelbase") {
if (!kernelbase_dll.IsOpen()) {
LOG_CRITICAL(HW_Memory, "Failed to load Kernelbase.dll");
throw std::bad_alloc{};
}
GetFuncAddress(kernelbase_dll, "CreateFileMapping2", pfn_CreateFileMapping2);
GetFuncAddress(kernelbase_dll, "VirtualAlloc2", pfn_VirtualAlloc2);
GetFuncAddress(kernelbase_dll, "MapViewOfFile3", pfn_MapViewOfFile3);
GetFuncAddress(kernelbase_dll, "UnmapViewOfFile2", pfn_UnmapViewOfFile2);
// Allocate backing file map
backing_handle =
CreateFileMapping2(INVALID_HANDLE_VALUE, nullptr, FILE_MAP_WRITE | FILE_MAP_READ,
PAGE_READWRITE, SEC_COMMIT, backing_size, nullptr, nullptr, 0);
pfn_CreateFileMapping2(INVALID_HANDLE_VALUE, nullptr, FILE_MAP_WRITE | FILE_MAP_READ,
PAGE_READWRITE, SEC_COMMIT, backing_size, nullptr, nullptr, 0);
if (!backing_handle) {
LOG_CRITICAL(HW_Memory, "Failed to allocate {} MiB of backing memory",
backing_size >> 20);
throw std::bad_alloc{};
}
// Allocate a virtual memory for the backing file map as placeholder
backing_base = static_cast<u8*>(VirtualAlloc2(process, nullptr, backing_size,
MEM_RESERVE | MEM_RESERVE_PLACEHOLDER,
PAGE_NOACCESS, nullptr, 0));
backing_base = static_cast<u8*>(pfn_VirtualAlloc2(process, nullptr, backing_size,
MEM_RESERVE | MEM_RESERVE_PLACEHOLDER,
PAGE_NOACCESS, nullptr, 0));
if (!backing_base) {
Release();
LOG_CRITICAL(HW_Memory, "Failed to reserve {} MiB of virtual memory",
backing_size >> 20);
throw std::bad_alloc{};
}
// Map backing placeholder
void* const ret = MapViewOfFile3(backing_handle, process, backing_base, 0, backing_size,
MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0);
void* const ret = pfn_MapViewOfFile3(backing_handle, process, backing_base, 0, backing_size,
MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0);
if (ret != backing_base) {
Release();
LOG_CRITICAL(HW_Memory, "Failed to map {} MiB of virtual memory", backing_size >> 20);
throw std::bad_alloc{};
}
// Allocate virtual address placeholder
virtual_base = static_cast<u8*>(VirtualAlloc2(process, nullptr, virtual_size,
MEM_RESERVE | MEM_RESERVE_PLACEHOLDER,
PAGE_NOACCESS, nullptr, 0));
virtual_base = static_cast<u8*>(pfn_VirtualAlloc2(process, nullptr, virtual_size,
MEM_RESERVE | MEM_RESERVE_PLACEHOLDER,
PAGE_NOACCESS, nullptr, 0));
if (!virtual_base) {
Release();
LOG_CRITICAL(HW_Memory, "Failed to reserve {} GiB of virtual memory",
virtual_size >> 30);
throw std::bad_alloc{};
}
}
@ -136,8 +189,8 @@ private:
void Release() {
if (!placeholders.empty()) {
for (const auto& placeholder : placeholders) {
if (!UnmapViewOfFile2(process, virtual_base + placeholder.lower(),
MEM_PRESERVE_PLACEHOLDER)) {
if (!pfn_UnmapViewOfFile2(process, virtual_base + placeholder.lower(),
MEM_PRESERVE_PLACEHOLDER)) {
LOG_CRITICAL(HW_Memory, "Failed to unmap virtual memory placeholder");
}
}
@ -149,7 +202,7 @@ private:
}
}
if (backing_base) {
if (!UnmapViewOfFile2(process, backing_base, MEM_PRESERVE_PLACEHOLDER)) {
if (!pfn_UnmapViewOfFile2(process, backing_base, MEM_PRESERVE_PLACEHOLDER)) {
LOG_CRITICAL(HW_Memory, "Failed to unmap backing memory placeholder");
}
if (!VirtualFreeEx(process, backing_base, 0, MEM_RELEASE)) {
@ -184,8 +237,8 @@ private:
const bool split_left = unmap_begin > placeholder_begin;
const bool split_right = unmap_end < placeholder_end;
if (!UnmapViewOfFile2(process, virtual_base + placeholder_begin,
MEM_PRESERVE_PLACEHOLDER)) {
if (!pfn_UnmapViewOfFile2(process, virtual_base + placeholder_begin,
MEM_PRESERVE_PLACEHOLDER)) {
LOG_CRITICAL(HW_Memory, "Failed to unmap placeholder");
}
// If we have to remap memory regions due to partial unmaps, we are in a data race as
@ -235,8 +288,8 @@ private:
}
void MapView(size_t virtual_offset, size_t host_offset, size_t length) {
if (!MapViewOfFile3(backing_handle, process, virtual_base + virtual_offset, host_offset,
length, MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0)) {
if (!pfn_MapViewOfFile3(backing_handle, process, virtual_base + virtual_offset, host_offset,
length, MEM_REPLACE_PLACEHOLDER, PAGE_READWRITE, nullptr, 0)) {
LOG_CRITICAL(HW_Memory, "Failed to map placeholder");
}
}
@ -279,6 +332,12 @@ private:
HANDLE process{}; ///< Current process handle
HANDLE backing_handle{}; ///< File based backing memory
DynamicLibrary kernelbase_dll;
PFN_CreateFileMapping2 pfn_CreateFileMapping2{};
PFN_VirtualAlloc2 pfn_VirtualAlloc2{};
PFN_MapViewOfFile3 pfn_MapViewOfFile3{};
PFN_UnmapViewOfFile2 pfn_UnmapViewOfFile2{};
std::mutex placeholder_mutex; ///< Mutex for placeholders
boost::icl::separate_interval_set<size_t> placeholders; ///< Mapped placeholders
std::unordered_map<size_t, size_t> placeholder_host_pointers; ///< Placeholder backing offset