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104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
#include <iostream>
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#include <array>
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#include <cstring>
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#include "real_dlsym.h"
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#include "mesa/util/macros.h"
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#include "mesa/util/os_time.h"
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#include <chrono>
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#include <iomanip>
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#include "imgui_hud_shared.h"
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#include "imgui_hud.h"
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using namespace MangoHud::GL;
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#define EXPORT_C_(type) extern "C" __attribute__((__visibility__("default"))) type
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EXPORT_C_(void *) eglGetProcAddress(const char* procName);
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void* get_egl_proc_address(const char* name) {
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void *func = nullptr;
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static void *(*pfn_eglGetProcAddress)(const char*) = nullptr;
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if (!pfn_eglGetProcAddress)
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pfn_eglGetProcAddress = reinterpret_cast<decltype(pfn_eglGetProcAddress)>(get_proc_address("eglGetProcAddress"));
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if (pfn_eglGetProcAddress)
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func = pfn_eglGetProcAddress(name);
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if (!func)
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func = get_proc_address( name );
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if (!func) {
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std::cerr << "MANGOHUD: Failed to get function '" << name << "'" << std::endl;
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}
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return func;
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}
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//EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
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EXPORT_C_(int) eglMakeCurrent_OFF(void *dpy, void *draw, void *read,void *ctx) {
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#ifndef NDEBUG
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std::cerr << __func__ << ": " << draw << ", " << ctx << std::endl;
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#endif
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int ret = 0;
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return ret;
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}
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EXPORT_C_(unsigned int) eglSwapBuffers( void* dpy, void* surf)
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{
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static int (*pfn_eglSwapBuffers)(void*, void*) = nullptr;
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if (!pfn_eglSwapBuffers)
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pfn_eglSwapBuffers = reinterpret_cast<decltype(pfn_eglSwapBuffers)>(get_proc_address("eglSwapBuffers"));
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static int (*pfn_eglQuerySurface)(void* dpy, void* surface, int attribute, int *value) = nullptr;
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if (!pfn_eglQuerySurface)
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pfn_eglQuerySurface = reinterpret_cast<decltype(pfn_eglQuerySurface)>(get_proc_address("eglQuerySurface"));
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//std::cerr << __func__ << "\n";
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VARIANT(imgui_create)(surf);
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int width=0, height=0;
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if (pfn_eglQuerySurface(dpy, surf, 0x3056, &height) &&
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pfn_eglQuerySurface(dpy, surf, 0x3057, &width))
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VARIANT(imgui_render)(width, height);
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//std::cerr << "\t" << width << " x " << height << "\n";
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return pfn_eglSwapBuffers(dpy, surf);
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}
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struct func_ptr {
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const char *name;
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void *ptr;
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};
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static std::array<const func_ptr, 1> name_to_funcptr_map = {{
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#define ADD_HOOK(fn) { #fn, (void *) fn }
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ADD_HOOK(eglGetProcAddress),
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#undef ADD_HOOK
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}};
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void *find_egl_ptr(const char *name)
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{
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for (auto& func : name_to_funcptr_map) {
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if (strcmp(name, func.name) == 0)
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return func.ptr;
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}
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return nullptr;
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}
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EXPORT_C_(void *) eglGetProcAddress(const char* procName) {
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std::cerr << __func__ << ": " << procName << std::endl;
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void* func = find_egl_ptr(procName);
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if (func)
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return func;
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return get_egl_proc_address(procName);
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}
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