From 945cfe234b649aec08efcebadae905de5dfcda90 Mon Sep 17 00:00:00 2001
From: lat9nq <22451773+lat9nq@users.noreply.github.com>
Date: Mon, 9 Nov 2020 22:12:41 -0500
Subject: [PATCH] bootmanager: Log and show GL_RENDERER string when GPU is
 insufficient

Changes the first message to not include the OpenGL version, as the
error is caused by OpenGL failing to load.

Adds a new check for OpenGL version 4.3. This will display a message
with a similar error as well as the GL_RENDERER string. Adds a CRITICAL
log message when triggered. This prevents a crash with yuzu trying to
use older OpenGL versions.

Modifies the unsupported extension message to output the GL_RENDERER
string in the message, as well as logging the string.
---
 src/yuzu/bootmanager.cpp | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/yuzu/bootmanager.cpp b/src/yuzu/bootmanager.cpp
index 408eac2b7..4481c749b 100644
--- a/src/yuzu/bootmanager.cpp
+++ b/src/yuzu/bootmanager.cpp
@@ -10,6 +10,7 @@
 #include <QMessageBox>
 #include <QPainter>
 #include <QScreen>
+#include <QString>
 #include <QStringList>
 #include <QWindow>
 
@@ -603,19 +604,34 @@ bool GRenderWindow::LoadOpenGL() {
     auto context = CreateSharedContext();
     auto scope = context->Acquire();
     if (!gladLoadGL()) {
+        QMessageBox::critical(
+            this, tr("Error while initializing OpenGL!"),
+            tr("Your GPU may not support OpenGL, or you do not have the latest graphics driver."));
+        return false;
+    }
+
+    QString renderer = QString::fromUtf8(reinterpret_cast<const char*>(glGetString(GL_RENDERER)));
+
+    if (!GLAD_GL_VERSION_4_3) {
+        LOG_CRITICAL(Frontend, "GPU does not support OpenGL 4.3: {:s}", renderer.toStdString());
         QMessageBox::critical(this, tr("Error while initializing OpenGL 4.3!"),
                               tr("Your GPU may not support OpenGL 4.3, or you do not have the "
-                                 "latest graphics driver."));
+                                 "latest graphics driver.<br><br>GL Renderer:<br>%1")
+                                  .arg(renderer));
         return false;
     }
 
     QStringList unsupported_gl_extensions = GetUnsupportedGLExtensions();
     if (!unsupported_gl_extensions.empty()) {
+        LOG_CRITICAL(Frontend, "GPU does not support all needed extensions: {:s}",
+                     renderer.toStdString());
         QMessageBox::critical(
             this, tr("Error while initializing OpenGL!"),
             tr("Your GPU may not support one or more required OpenGL extensions. Please ensure you "
-               "have the latest graphics driver.<br><br>Unsupported extensions:<br>") +
-                unsupported_gl_extensions.join(QStringLiteral("<br>")));
+               "have the latest graphics driver.<br><br>GL Renderer:<br>%1<br><br>Unsupported "
+               "extensions:<br>%2")
+                .arg(renderer)
+                .arg(unsupported_gl_extensions.join(QStringLiteral("<br>"))));
         return false;
     }
     return true;