Fix build

2025-07-06 22:42:19 +08:00 · 2019-09-01 20:53:16 +02:00
parent 1785ae6eaf
commit b9cd9ae6c2
26 changed files with 1544 additions and 109 deletions
--- a/overlay_experimental/linux/OpenGLX_Hook.cpp
+++ b/overlay_experimental/linux/OpenGLX_Hook.cpp
@ -0,0 +1,152 @@
+#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);
+
+            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
+#endif//__LINUX__