Add more verbose popups for video_core errors

src/citra_qt/main.cpp

@@ -681,7 +681,19 @@ bool GMainWindow::LoadROM(const QString& filename) {
                    "the "
                    "log</a> for more details. "
                    "Ensure that you have the latest graphics drivers for your GPU."));
+            break;
 
+        case Core::System::ResultStatus::ErrorVideoCore_ErrorGenericDrivers:
+            QMessageBox::critical(
+                this, tr("An error occured in the video core."),
+                tr("You are running default Windows drivers for your GPU. You need to install the "
+                   "proper drivers for your graphics card from the manufacturer's website."));
+            break;
+
+        case Core::System::ResultStatus::ErrorVideoCore_ErrorBelowGL33:
+            QMessageBox::critical(this, tr("Error while initializing OpenGL 3.3 Core!"),
+                                  tr("Your GPU may not support OpenGL 3.3, or you do not "
+                                     "have the latest graphics driver."));
             break;
 
         default:

src/core/core.cpp

@@ -178,8 +178,9 @@ System::ResultStatus System::Init(EmuWindow* emu_window, u32 system_mode) {
     GDBStub::Init();
     Movie::GetInstance().Init();
 
-    if (!VideoCore::Init(emu_window)) {
-        return ResultStatus::ErrorVideoCore;
+    ResultStatus result = VideoCore::Init(emu_window);
+    if (result != ResultStatus::Success) {
+        return result;
     }
 
     LOG_DEBUG(Core, "Initialized OK");

src/core/core.h

@@ -51,6 +51,10 @@ public:
         ErrorSystemFiles,                   ///< Error in finding system files
         ErrorSharedFont,                    ///< Error in finding shared font
         ErrorVideoCore,                     ///< Error in the video core
+        ErrorVideoCore_ErrorGenericDrivers, ///< Error in the video core due to the user having
+                                            /// generic drivers installed
+        ErrorVideoCore_ErrorBelowGL33,      ///< Error in the video core due to the user not having
+                                            /// OpenGL 3.3 or higher
         ErrorUnknown                        ///< Any other error
     };
 

src/video_core/renderer_base.h

@@ -6,6 +6,7 @@
 
 #include <memory>
 #include "common/common_types.h"
+#include "core/core.h"
 #include "video_core/rasterizer_interface.h"
 
 class EmuWindow;
@@ -27,7 +28,7 @@ public:
     virtual void SetWindow(EmuWindow* window) = 0;
 
     /// Initialize the renderer
-    virtual bool Init() = 0;
+    virtual Core::System::ResultStatus Init() = 0;
 
     /// Shutdown the renderer
     virtual void ShutDown() = 0;

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -505,7 +505,7 @@ static void APIENTRY DebugHandler(GLenum source, GLenum type, GLuint id, GLenum
 }
 
 /// Initialize the renderer
-bool RendererOpenGL::Init() {
+Core::System::ResultStatus RendererOpenGL::Init() {
     render_window->MakeCurrent();
 
     if (GLAD_GL_KHR_debug) {
@@ -525,15 +525,19 @@ bool RendererOpenGL::Init() {
     Core::Telemetry().AddField(Telemetry::FieldType::UserSystem, "GPU_Model", gpu_model);
     Core::Telemetry().AddField(Telemetry::FieldType::UserSystem, "GPU_OpenGL_Version", gl_version);
 
+    if (gpu_vendor == "GDI Generic") {
+        return Core::System::ResultStatus::ErrorVideoCore_ErrorGenericDrivers;
+    }
+
     if (!GLAD_GL_VERSION_3_3) {
-        return false;
+        return Core::System::ResultStatus::ErrorVideoCore_ErrorBelowGL33;
     }
 
     InitOpenGLObjects();
 
     RefreshRasterizerSetting();
 
-    return true;
+    return Core::System::ResultStatus::Success;
 }
 
 /// Shutdown the renderer

src/video_core/renderer_opengl/renderer_opengl.h

@@ -47,7 +47,7 @@ public:
     void SetWindow(EmuWindow* window) override;
 
     /// Initialize the renderer
-    bool Init() override;
+    Core::System::ResultStatus Init() override;
 
     /// Shutdown the renderer
     void ShutDown() override;

src/video_core/video_core.cpp

@@ -25,19 +25,21 @@ std::atomic<bool> g_hw_shader_accurate_mul;
 std::atomic<bool> g_renderer_bg_color_update_requested;
 
 /// Initialize the video core
-bool Init(EmuWindow* emu_window) {
+Core::System::ResultStatus Init(EmuWindow* emu_window) {
     Pica::Init();
 
     g_emu_window = emu_window;
     g_renderer = std::make_unique<RendererOpenGL>();
     g_renderer->SetWindow(g_emu_window);
-    if (g_renderer->Init()) {
-        LOG_DEBUG(Render, "initialized OK");
-    } else {
+    Core::System::ResultStatus result = g_renderer->Init();
+
+    if (result != Core::System::ResultStatus::Success) {
         LOG_ERROR(Render, "initialization failed !");
-        return false;
+    } else {
+        LOG_DEBUG(Render, "initialized OK");
     }
-    return true;
+
+    return result;
 }
 
 /// Shutdown the video core

src/video_core/video_core.h

@@ -6,6 +6,7 @@
 
 #include <atomic>
 #include <memory>
+#include "core/core.h"
 
 class EmuWindow;
 class RendererBase;
@@ -31,7 +32,7 @@ extern std::atomic<bool> g_renderer_bg_color_update_requested;
 void Start();
 
 /// Initialize the video core
-bool Init(EmuWindow* emu_window);
+Core::System::ResultStatus Init(EmuWindow* emu_window);
 
 /// Shutdown the video core
 void Shutdown();