From f0a99f2bea2fc2ff40c6f240b2c2c944ba9c8394 Mon Sep 17 00:00:00 2001
From: Adrien Destugues <pulkomandy@pulkomandy.tk>
Date: Sun, 3 Feb 2019 21:35:01 +0100
Subject: [PATCH] WebPositive: check if SSE2 is available.

We cannot run if it's not, but at least let's have an understandable
error message.

Fixes #14583

Change-Id: Ibe2e5d7721a1c48f06c2ac37d007a59d80c14bab
Reviewed-on: https://review.haiku-os.org/c/1007
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
---
 src/apps/webpositive/BrowserApp.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/apps/webpositive/BrowserApp.cpp b/src/apps/webpositive/BrowserApp.cpp
index d6253c0cf6..f05db24589 100644
--- a/src/apps/webpositive/BrowserApp.cpp
+++ b/src/apps/webpositive/BrowserApp.cpp
@@ -84,6 +84,21 @@ BrowserApp::BrowserApp()
 	fConsoleWindow(NULL),
 	fCookieWindow(NULL)
 {
+#ifdef __INTEL__
+	// First let's check SSE2 is available
+	cpuid_info info;
+	get_cpuid(&info, 1, 0);
+
+	if ((info.eax_1.features & (1 << 26)) == 0) {
+		BAlert alert("No SSE2 support", B_TRANSLATE("Your CPU is too old and "
+			"does not support the SSE2 extensions, without which WebPositive "
+			"cannot run. We recommend installing NetSurf instead."),
+			B_TRANSLATE("Darn!"));
+		alert.Go();
+		exit(-1);
+	}
+#endif
+
 #if ENABLE_NATIVE_COOKIES
 	BString cookieStorePath = kApplicationName;
 	cookieStorePath << "/Cookies";