mirror of
https://gitlab.com/Mr_Goldberg/goldberg_emulator.git
synced 2024-11-27 14:08:39 +01:00
150 lines
3.2 KiB
C++
150 lines
3.2 KiB
C++
#include "OpenGLX_Hook.h"
|
|
#include "X11_Hook.h"
|
|
#include "Renderer_Detector.h"
|
|
#include "../dll/dll.h"
|
|
|
|
#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);
|
|
|
|
UnhookAll();
|
|
BeginHook();
|
|
HookFuncs(
|
|
std::make_pair<void**, void*>(&(void*&)_glXSwapBuffers, (void*)&OpenGLX_Hook::MyglXSwapBuffers)
|
|
);
|
|
EndHook();
|
|
|
|
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();
|
|
//X11_Hook::Inst()->resetRenderState();
|
|
ImGui::DestroyContext();
|
|
|
|
initialized = false;
|
|
}
|
|
}
|
|
|
|
// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
|
|
void OpenGLX_Hook::prepareForOverlay(Display* display)
|
|
{
|
|
PRINT_DEBUG("Called SwapBuffer hook");
|
|
|
|
if( ! initialized )
|
|
{
|
|
ImGui::CreateContext();
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
io.IniFilename = NULL;
|
|
|
|
ImGui_ImplOpenGL3_Init();
|
|
initialized = true;
|
|
}
|
|
|
|
if( initialized )
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
|
|
GLint m_viewport[4];
|
|
glGetIntegerv( GL_VIEWPORT, m_viewport );
|
|
int width = m_viewport[2];
|
|
int height = m_viewport[3];
|
|
|
|
ImGui_ImplOpenGL3_NewFrame();
|
|
X11_Hook::Inst()->prepareForOverlay(display);
|
|
|
|
ImGui::NewFrame();
|
|
|
|
get_steam_client()->steam_overlay->OverlayProc(width, height);
|
|
|
|
ImGui::EndFrame();
|
|
|
|
ImGui::Render();
|
|
|
|
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
|
|
}
|
|
}
|
|
|
|
void OpenGLX_Hook::MyglXSwapBuffers(Display* display, GLXDrawable drawable)
|
|
{
|
|
OpenGLX_Hook::Inst()->prepareForOverlay(display);
|
|
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();
|
|
}
|
|
|
|
//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
|