Merge branch 'release-agua' into masterupstream/fabian-merge-release-agua

# Conflicts:
#	circle.yml
#	cmake/core-files.cmake
#	platform/android/CHANGELOG.md
#	platform/android/MapboxGLAndroidSDK/build.gradle
#	platform/android/MapboxGLAndroidSDK/gradle.properties
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/CameraChangeDispatcher.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapboxMapOptions.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/text/LocalGlyphRasterizer.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/utils/BitmapUtils.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/DebugModeActivity.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/LocalGlyphActivity.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/userlocation/MyLocationTintActivity.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_local_glyph.xml
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml
#	platform/darwin/src/MGLMapSnapshotter.mm
#	platform/darwin/src/MGLRendererConfiguration.h
#	platform/ios/CHANGELOG.md
#	platform/ios/DEVELOPING.md
#	platform/ios/INSTALL.md
#	platform/ios/README.md
#	platform/ios/resources/bg.lproj/Localizable.strings
#	platform/ios/resources/es.lproj/Localizable.strings
#	platform/ios/resources/vi.lproj/Localizable.strings
#	platform/ios/src/MGLMapView.mm
#	platform/macos/macos.xcodeproj/project.pbxproj
#	src/mbgl/text/glyph_manager.cpp

1 files changed, 13 insertions, 8 deletions

diff --git a/src/mbgl/renderer/layers/render_custom_layer.cpp b/src/mbgl/renderer/layers/render_custom_layer.cpp
index 7ece3970da..adafd8583f 100644
--- a/src/mbgl/renderer/layers/render_custom_layer.cpp
+++ b/src/mbgl/renderer/layers/render_custom_layer.cpp
@@ -43,20 +43,25 @@ std::unique_ptr<Bucket> RenderCustomLayer::createBucket(const BucketParameters&,
 }
 
 void RenderCustomLayer::render(PaintParameters& paintParameters, RenderSource*) {
-    if (!initialized) {
+    if (context != impl().context || !initialized) {
+        //If the context changed, deinitialize the previous one before initializing the new one.
+        if (context && !contextDestroyed && impl().deinitializeFn) {
+            impl().deinitializeFn(context);
+        }
+        context = impl().context;
         assert(impl().initializeFn);
         impl().initializeFn(impl().context);
         initialized = true;
     }
 
-    gl::Context& context = paintParameters.context;
+    gl::Context& glContext = paintParameters.context;
     const TransformState& state = paintParameters.state;
 
     // Reset GL state to a known state so the CustomLayer always has a clean slate.
-    context.bindVertexArray = 0;
-    context.setDepthMode(paintParameters.depthModeForSublayer(0, gl::DepthMode::ReadOnly));
-    context.setStencilMode(gl::StencilMode::disabled());
-    context.setColorMode(paintParameters.colorModeForRenderPass());
+    glContext.bindVertexArray = 0;
+    glContext.setDepthMode(paintParameters.depthModeForSublayer(0, gl::DepthMode::ReadOnly));
+    glContext.setStencilMode(gl::StencilMode::disabled());
+    glContext.setColorMode(paintParameters.colorModeForRenderPass());
 
     CustomLayerRenderParameters parameters;
 
@@ -70,12 +75,12 @@ void RenderCustomLayer::render(PaintParameters& paintParameters, RenderSource*)
     parameters.fieldOfView = state.getFieldOfView();
 
     assert(impl().renderFn);
-    impl().renderFn(impl().context, parameters);
+    impl().renderFn(context, parameters);
 
     // Reset the view back to our original one, just in case the CustomLayer changed
     // the viewport or Framebuffer.
     paintParameters.backend.bind();
-    context.setDirtyState();
+    glContext.setDirtyState();
 }
 
 } // namespace mbgl