[Improvement] (...): Stub imcomplete GL functions of GLES.

Signed-off-by: BZLZHH <admin@bzlzhh.top>

src/main/cpp/CMakeLists.txt

@@ -21,6 +21,7 @@ find_library(GLSLANG_LIB glslang PATHS ${CMAKE_SOURCE_DIR}/libraries/arm64-v8a/)
 add_library(${CMAKE_PROJECT_NAME} SHARED
         init.cpp
         main.c
+        gl/gl_stub.c
         gl/gl_native.c
         gl/gl.c
         gl/envvars.c

src/main/cpp/gles/loader.h

@@ -78,4 +78,16 @@ GLAPI GLAPIENTRY type name(__VA_ARGS__) {                                   \
         LOG_E("ERROR: %d", ERR)                                             \
 }
 
+#define STUB_FUNCTION_HEAD(type,name,...)                                   \
+GLAPI GLAPIENTRY type name(__VA_ARGS__) {
+
+#define STUB_FUNCTION_END(type,name,...)                                    \
+    LOG_W("No function: %s @ %s(...)", RENDERERNAME, __FUNCTION__);         \
+    return (type)0;                                                         \
+}
+
+#define STUB_FUNCTION_END_NO_RETURN(type,name,...)                          \
+    LOG_W("No function: %s @ %s(...)", RENDERERNAME, __FUNCTION__);         \
+}
+
 #endif // _MOBILEGLUES_LOADER_H_

src/main/cpp/include/GLES/gl3platform.h

@@ -0,0 +1,27 @@
+#ifndef __gl3platform_h_
+#define __gl3platform_h_
+
+/*
+** Copyright 2017-2020 The Khronos Group Inc.
+** SPDX-License-Identifier: Apache-2.0
+*/
+
+/* Platform-specific types and definitions for OpenGL ES 3.X  gl3.h
+ *
+ * Adopters may modify khrplatform.h and this file to suit their platform.
+ * Please contribute modifications back to Khronos as pull requests on the
+ * public github repository:
+ *      https://github.com/KhronosGroup/OpenGL-Registry
+ */
+
+#include <KHR/khrplatform.h>
+
+#ifndef GL_APICALL
+#define GL_APICALL  KHRONOS_APICALL
+#endif
+
+#ifndef GL_APIENTRY
+#define GL_APIENTRY KHRONOS_APIENTRY
+#endif
+
+#endif /* __gl3platform_h_ */