mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-08 10:00:22 +02:00
Ryan Houdek
c0fc4c4623
This is specifically the device loader rather than the libvulkan loader library. This is meant to override what is provided in the ICD files, not the loader. There's no real need to replace the loader, it's quite complex
117 lines
3.4 KiB
C++
117 lines
3.4 KiB
C++
/*
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$info$
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tags: thunklibs|vulkan
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$end_info$
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*/
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#include "Header.inl"
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#include <stdio.h>
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#include <cstring>
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#include <map>
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#include <string>
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#include <dlfcn.h>
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#include <unordered_map>
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#include <vector>
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#include "common/Guest.h"
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#include <stdarg.h>
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#include "thunks.inl"
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#include "function_packs.inl"
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#include "function_packs_public.inl"
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extern "C" {
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static bool Setup{};
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static std::unordered_map<std::string,PFN_vkVoidFunction*> PtrsToLookUp{};
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static PFN_vkVoidFunction fexfn_pack_vkGetDeviceProcAddr(VkDevice a_0,const char* a_1);
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static PFN_vkVoidFunction fexfn_pack_vkGetInstanceProcAddr(VkInstance a_0,const char* a_1);
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static void fexfn_pack_vkCmdSetBlendConstants(VkCommandBuffer a_0,const float a_1[4]);
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// Setup can't be done on shared library constructor
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// Needs to be deferred until post-constructor phase to remove the chance of crashing
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static void DoSetup() {
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const std::vector<std::pair<const char*, PFN_vkVoidFunction*>> Map = {{
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#define PAIR(name, ptr) { #name, (PFN_vkVoidFunction*) ptr }
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#include "function_pack_pair.inl"
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#undef PAIR
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}};
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for (auto &It : Map) {
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PtrsToLookUp[It.first] = It.second;
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}
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Setup = true;
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}
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static PFN_vkVoidFunction fexfn_pack_vkGetDeviceProcAddr(VkDevice a_0,const char* a_1){
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if (!Setup) {
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DoSetup();
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}
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struct {VkDevice a_0;const char* a_1;PFN_vkVoidFunction rv;} args;
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args.a_0 = a_0;args.a_1 = a_1;
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THUNKFUNC(vkGetDeviceProcAddr)(&args);
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if (args.rv == nullptr) {
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// Early out if our instance doesn't have the pointer
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// Definitely means we don't support it
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return nullptr;
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}
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// Okay, we found a host side function for this
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// Now return our local instance of this function
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auto It = PtrsToLookUp.find(a_1);
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void *ptr{};
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if (It != PtrsToLookUp.end()) {
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ptr = It->second;
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}
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if (ptr == nullptr) {
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fprintf(stderr, "\tvkGetDeviceProcAddr: Couldn't find Guest symbol: '%s'\n", a_1);
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__builtin_trap();
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}
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return (PFN_vkVoidFunction)ptr;
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}
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static PFN_vkVoidFunction fexfn_pack_vkGetInstanceProcAddr(VkInstance a_0,const char* a_1){
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if (!Setup) {
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DoSetup();
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}
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// Search our host install first to see if the pointer exists
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// This also populates a map on the host facing side
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struct {VkInstance a_0;const char* a_1;PFN_vkVoidFunction rv;} args;
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args.a_0 = a_0;args.a_1 = a_1;
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THUNKFUNC(vkGetInstanceProcAddr)(&args);
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if (args.rv == nullptr) {
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// Early out if our instance doesn't have the pointer
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// Definitely means we don't support it
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return nullptr;
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}
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void *ptr{};
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auto It = PtrsToLookUp.find(a_1);
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if (It != PtrsToLookUp.end()) {
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ptr = (void*)(It->second);
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}
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if (ptr == nullptr) {
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fprintf(stderr, "\tvkGetInstanceProcAddr: Couldn't find Guest symbol: '%s'\n", a_1);
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__builtin_trap();
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}
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return (PFN_vkVoidFunction)ptr;
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}
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static void fexfn_pack_vkCmdSetBlendConstants(VkCommandBuffer a_0,const float a_1[4]){
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struct {VkCommandBuffer a_0; float a_1[4];} args;
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args.a_0 = a_0;
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memcpy(args.a_1, a_1, sizeof(float) * 4);
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THUNKFUNC(vkCmdSetBlendConstants)(&args);
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}
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PFN_vkVoidFunction vkGetDeviceProcAddr(VkDevice a_0,const char* a_1) __attribute__((alias("fexfn_pack_vkGetDeviceProcAddr")));
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PFN_vkVoidFunction vkGetInstanceProcAddr(VkInstance a_0,const char* a_1) __attribute__((alias("fexfn_pack_vkGetInstanceProcAddr")));
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void vkCmdSetBlendConstants(VkCommandBuffer a_0,const float a_1[4]) __attribute__((alias("fexfn_pack_vkCmdSetBlendConstants")));
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}
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#define DOLOAD(name) LOAD_LIB(name)
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DOLOAD(LIBLIB_NAME)
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