From a9e09c710e6b07be425640bd323200963e22d825 Mon Sep 17 00:00:00 2001
From: Bruno de Oliveira Abinader <bruno@mapbox.com>
Date: Mon, 10 Apr 2017 17:16:45 +0300
Subject: [PATCH] [ios, macos] MGLMapView size check for OpenGL 2.0 ES minimum
 texture size

---
 platform/ios/src/MGLMapView.mm   | 7 +++++--
 platform/macos/src/MGLMapView.mm | 7 +++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
index d80e741c0..212f8934e 100644
--- a/platform/ios/src/MGLMapView.mm
+++ b/platform/ios/src/MGLMapView.mm
@@ -576,8 +576,11 @@ public:
 
 - (mbgl::Size)size
 {
-    return { static_cast<uint32_t>(self.bounds.size.width),
-             static_cast<uint32_t>(self.bounds.size.height) };
+    // check for minimum texture size supported by OpenGL ES 2.0
+    //
+    CGSize size = CGSizeMake(MAX(self.bounds.size.width, 64), MAX(self.bounds.size.height, 64));
+    return { static_cast<uint32_t>(size.width),
+             static_cast<uint32_t>(size.height) };
 }
 
 - (mbgl::Size)framebufferSize
diff --git a/platform/macos/src/MGLMapView.mm b/platform/macos/src/MGLMapView.mm
index e19755044..5d14192c6 100644
--- a/platform/macos/src/MGLMapView.mm
+++ b/platform/macos/src/MGLMapView.mm
@@ -307,8 +307,11 @@ public:
 }
 
 - (mbgl::Size)size {
-    return { static_cast<uint32_t>(self.bounds.size.width),
-             static_cast<uint32_t>(self.bounds.size.height) };
+    // check for minimum texture size supported by OpenGL ES 2.0
+    //
+    CGSize size = CGSizeMake(MAX(self.bounds.size.width, 64), MAX(self.bounds.size.height, 64));
+    return { static_cast<uint32_t>(size.width),
+             static_cast<uint32_t>(size.height) };
 }
 
 - (mbgl::Size)framebufferSize {