Original commit: https://github.com/anbox/anbox/pull/1875/commits/a38b10b6bd519faa781d43d45f9740e5e82c4ca6

From a38b10b6bd519faa781d43d45f9740e5e82c4ca6 Mon Sep 17 00:00:00 2001
From: kuailexs <952415538@qq.com>
Date: Wed, 28 Jul 2021 20:54:32 +0800
Subject: [PATCH] emugl:fix webview,GL_SHADING_LANGUAGE_VERSION and
 EGL_RENDERABLE_TYPE

---
 src/anbox/graphics/emugl/RenderControl.cpp  | 3 +++
 src/anbox/graphics/emugl/RendererConfig.cpp | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/src/anbox/graphics/emugl/RenderControl.cpp b/src/anbox/graphics/emugl/RenderControl.cpp
index 9f2558553..99f30015d 100644
--- a/src/anbox/graphics/emugl/RenderControl.cpp
+++ b/src/anbox/graphics/emugl/RenderControl.cpp
@@ -144,6 +144,9 @@ static EGLint rcGetGLString(EGLenum name, void* buffer, EGLint bufferSize) {
     };
 
     result = filter_extensions(result, whitelisted_extensions);
+  }else if (name == GL_SHADING_LANGUAGE_VERSION) {
+    // GL_VERSION:"OpenGL ES 2.0" matched GL_SHADING_LANGUAGE_VERSION:"OpenGL ES GLSL ES 1.00"
+    result = "OpenGL ES GLSL ES 1.00";
   }
 
   int nextBufferSize = result.size() + 1;
diff --git a/src/anbox/graphics/emugl/RendererConfig.cpp b/src/anbox/graphics/emugl/RendererConfig.cpp
index 02b6b7882..f7027dc9d 100644
--- a/src/anbox/graphics/emugl/RendererConfig.cpp
+++ b/src/anbox/graphics/emugl/RendererConfig.cpp
@@ -142,6 +142,13 @@ int RendererConfigList::chooseConfig(const EGLint* attribs, EGLint* configs,
         mustReplaceSurfaceType = true;
       }
     }
+    // EGL_RENDERABLE_TYPE , fix webview
+    if (attribs[numAttribs] == EGL_RENDERABLE_TYPE) {
+      if (attribs[numAttribs + 1] > EGL_OPENGL_ES2_BIT) {
+        ERROR("EGL_RENDERABLE_TYPE can not > EGL_OPENGL_ES2_BIT");
+        return 0;
+      }
+    }
     numAttribs += 2;
   }