2019-09-01 20:53:16 +02:00
|
|
|
#include "OpenGLX_Hook.h"
|
|
|
|
#include "X11_Hook.h"
|
|
|
|
#include "../Renderer_Detector.h"
|
|
|
|
#include "../dll/dll.h"
|
|
|
|
|
|
|
|
#ifdef __LINUX__
|
|
|
|
#ifndef NO_OVERLAY
|
|
|
|
|
|
|
|
#include <imgui.h>
|
|
|
|
#include <impls/imgui_impl_opengl3.h>
|
|
|
|
|
|
|
|
#include "../steam_overlay.h"
|
|
|
|
|
|
|
|
OpenGLX_Hook* OpenGLX_Hook::_inst = nullptr;
|
|
|
|
|
|
|
|
bool OpenGLX_Hook::start_hook()
|
|
|
|
{
|
|
|
|
bool res = true;
|
|
|
|
if (!hooked)
|
|
|
|
{
|
|
|
|
if (!X11_Hook::Inst()->start_hook())
|
|
|
|
return false;
|
|
|
|
|
|
|
|
GLenum err = glewInit();
|
|
|
|
|
|
|
|
if (err == GLEW_OK)
|
|
|
|
{
|
|
|
|
PRINT_DEBUG("Hooked OpenGLX\n");
|
|
|
|
|
|
|
|
hooked = true;
|
|
|
|
Renderer_Detector::Inst().renderer_found(this);
|
|
|
|
|
2019-09-03 10:32:32 +02:00
|
|
|
/*
|
2019-09-01 20:53:16 +02:00
|
|
|
UnhookAll();
|
|
|
|
BeginHook();
|
|
|
|
HookFuncs(
|
|
|
|
std::make_pair<void**, void*>(&(void*&)_glXSwapBuffers, (void*)&OpenGLX_Hook::MyglXSwapBuffers)
|
|
|
|
);
|
|
|
|
EndHook();
|
2019-09-03 10:32:32 +02:00
|
|
|
*/
|
2019-09-01 20:53:16 +02:00
|
|
|
|
|
|
|
get_steam_client()->steam_overlay->HookReady();
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
PRINT_DEBUG("Failed to hook OpenGLX\n");
|
|
|
|
/* Problem: glewInit failed, something is seriously wrong. */
|
|
|
|
PRINT_DEBUG("Error: %s\n", glewGetErrorString(err));
|
|
|
|
res = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
void OpenGLX_Hook::resetRenderState()
|
|
|
|
{
|
|
|
|
if (initialized)
|
|
|
|
{
|
|
|
|
ImGui_ImplOpenGL3_Shutdown();
|
2019-09-03 10:32:32 +02:00
|
|
|
X11_Hook::Inst()->resetRenderState();
|
2019-09-01 20:53:16 +02:00
|
|
|
ImGui::DestroyContext();
|
|
|
|
|
2019-09-03 17:25:09 +02:00
|
|
|
glXDestroyContext(display, context);
|
|
|
|
display = nullptr;
|
2019-09-01 20:53:16 +02:00
|
|
|
initialized = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
|
2019-09-03 10:32:32 +02:00
|
|
|
void OpenGLX_Hook::prepareForOverlay(Display* display, GLXDrawable drawable)
|
2019-09-01 20:53:16 +02:00
|
|
|
{
|
|
|
|
PRINT_DEBUG("Called SwapBuffer hook");
|
|
|
|
|
2019-09-03 10:32:32 +02:00
|
|
|
if( (Window)drawable != X11_Hook::Inst()->get_game_wnd() )
|
2019-09-03 17:25:09 +02:00
|
|
|
X11_Hook::Inst()->resetRenderState();
|
2019-09-03 10:32:32 +02:00
|
|
|
|
2019-09-01 20:53:16 +02:00
|
|
|
if( ! initialized )
|
|
|
|
{
|
|
|
|
ImGui::CreateContext();
|
|
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
|
|
io.IniFilename = NULL;
|
|
|
|
|
|
|
|
ImGui_ImplOpenGL3_Init();
|
2019-09-03 17:25:09 +02:00
|
|
|
|
|
|
|
int attributes[] = { //can't be const b/c X11 doesn't like it. Not sure if that's intentional or just stupid.
|
|
|
|
GLX_RGBA, //apparently nothing comes after this?
|
|
|
|
GLX_RED_SIZE, 8,
|
|
|
|
GLX_GREEN_SIZE, 8,
|
|
|
|
GLX_BLUE_SIZE, 8,
|
|
|
|
GLX_ALPHA_SIZE, 8,
|
|
|
|
//Ideally, the size would be 32 (or at least 24), but I have actually seen
|
|
|
|
// this size (on a modern OS even).
|
|
|
|
GLX_DEPTH_SIZE, 16,
|
|
|
|
GLX_DOUBLEBUFFER, True,
|
|
|
|
None
|
|
|
|
};
|
|
|
|
|
|
|
|
XVisualInfo* visual_info = glXChooseVisual(display, DefaultScreen(display), attributes);
|
|
|
|
|
|
|
|
context = glXCreateContext(display, visual_info, nullptr, True);
|
|
|
|
this->display = display;
|
|
|
|
|
2019-09-05 09:00:02 +02:00
|
|
|
get_steam_client()->steam_overlay->CreateFonts();
|
|
|
|
|
2019-09-01 20:53:16 +02:00
|
|
|
initialized = true;
|
|
|
|
}
|
|
|
|
|
2019-09-03 17:25:09 +02:00
|
|
|
auto oldContext = glXGetCurrentContext();
|
2019-09-01 20:53:16 +02:00
|
|
|
|
2019-09-03 17:25:09 +02:00
|
|
|
glXMakeCurrent(display, drawable, context);
|
2019-09-01 20:53:16 +02:00
|
|
|
|
2019-09-03 17:25:09 +02:00
|
|
|
ImGui_ImplOpenGL3_NewFrame();
|
|
|
|
X11_Hook::Inst()->prepareForOverlay(display, (Window)drawable);
|
2019-09-01 20:53:16 +02:00
|
|
|
|
2019-09-03 17:25:09 +02:00
|
|
|
ImGui::NewFrame();
|
2019-09-01 20:53:16 +02:00
|
|
|
|
2019-09-05 09:00:02 +02:00
|
|
|
get_steam_client()->steam_overlay->OverlayProc();
|
2019-09-03 17:25:09 +02:00
|
|
|
|
|
|
|
ImGui::Render();
|
|
|
|
|
|
|
|
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
|
|
|
|
|
|
|
|
glXMakeCurrent(display, drawable, oldContext);
|
2019-09-01 20:53:16 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
void OpenGLX_Hook::MyglXSwapBuffers(Display* display, GLXDrawable drawable)
|
|
|
|
{
|
2019-09-03 10:32:32 +02:00
|
|
|
OpenGLX_Hook::Inst()->prepareForOverlay(display, drawable);
|
2019-09-01 20:53:16 +02:00
|
|
|
OpenGLX_Hook::Inst()->_glXSwapBuffers(display, drawable);
|
|
|
|
}
|
|
|
|
|
|
|
|
OpenGLX_Hook::OpenGLX_Hook():
|
|
|
|
initialized(false),
|
|
|
|
hooked(false),
|
|
|
|
_glXSwapBuffers(nullptr)
|
|
|
|
{
|
|
|
|
//_library = dlopen(DLL_NAME);
|
|
|
|
}
|
|
|
|
|
|
|
|
OpenGLX_Hook::~OpenGLX_Hook()
|
|
|
|
{
|
|
|
|
PRINT_DEBUG("OpenGLX Hook removed\n");
|
|
|
|
|
|
|
|
if (initialized)
|
|
|
|
{
|
|
|
|
ImGui_ImplOpenGL3_Shutdown();
|
|
|
|
ImGui::DestroyContext();
|
2019-09-03 17:25:09 +02:00
|
|
|
glXDestroyContext(display, context);
|
2019-09-01 20:53:16 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
//dlclose(_library);
|
|
|
|
|
|
|
|
_inst = nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
OpenGLX_Hook* OpenGLX_Hook::Inst()
|
|
|
|
{
|
|
|
|
if (_inst == nullptr)
|
|
|
|
_inst = new OpenGLX_Hook;
|
|
|
|
|
|
|
|
return _inst;
|
|
|
|
}
|
|
|
|
|
|
|
|
const char* OpenGLX_Hook::get_lib_name() const
|
|
|
|
{
|
|
|
|
return DLL_NAME;
|
|
|
|
}
|
|
|
|
|
|
|
|
void OpenGLX_Hook::loadFunctions(decltype(glXSwapBuffers)* pfnglXSwapBuffers)
|
|
|
|
{
|
|
|
|
_glXSwapBuffers = pfnglXSwapBuffers;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif//NO_OVERLAY
|
|
|
|
#endif//__LINUX__
|