Add GL_OES_EGL_image functions.

src/libANGLE/renderer/gl/FunctionsGL.cpp

@@ -762,7 +762,9 @@ FunctionsGL::FunctionsGL()
       vertexArrayVertexBuffer(nullptr),
       vertexArrayVertexBuffers(nullptr),
       blendBarrier(nullptr),
-      primitiveBoundingBox(nullptr)
+      primitiveBoundingBox(nullptr),
+      eglImageTargetRenderbufferStorageOES(nullptr),
+      eglImageTargetTexture2DOES(nullptr)
 {
 }
 
@@ -1772,6 +1774,10 @@ void FunctionsGL::initializeProcsGLES()
     AssignGLExtensionEntryPoint(extensions, "GL_EXT_occlusion_query_boolean", loadProcAddress("glGetQueryivEXT"), &getQueryiv);
     AssignGLExtensionEntryPoint(extensions, "GL_EXT_occlusion_query_boolean", loadProcAddress("glGetQueryObjectuivEXT"), &getQueryObjectuiv);
 
+    // GL_OES_EGL_image
+    AssignGLExtensionEntryPoint(extensions, "GL_OES_EGL_image", loadProcAddress("glEGLImageTargetRenderbufferStorageOES"), &eglImageTargetRenderbufferStorageOES);
+    AssignGLExtensionEntryPoint(extensions, "GL_OES_EGL_image", loadProcAddress("glEGLImageTargetTexture2DOES"), &eglImageTargetTexture2DOES);
+
     // 2.0
     if (isAtLeastGLES(gl::Version(2, 0)))
     {

src/libANGLE/renderer/gl/FunctionsGL.h

@@ -747,6 +747,10 @@ class FunctionsGL
     PFNGLBLENDBARRIERPROC blendBarrier;
     PFNGLPRIMITIVEBOUNDINGBOXPROC primitiveBoundingBox;
 
+    // ES extensions
+    PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC eglImageTargetRenderbufferStorageOES;
+    PFNGLEGLIMAGETARGETTEXTURE2DOESPROC eglImageTargetTexture2DOES;
+
   private:
     void initializeProcsDesktopGL();
     void initializeProcsGLES();