emulator: opengl: Back-port GLES emulation from the master tree.

The modules here are only built when BUILD_EMULATOR_OPENGL is defined to true
in your environment or your BoardConfig.mk (see tools/emulator/opengl/Android.mk)

Change-Id: I5f32c35b4452fb5a7b4d5f9fc5870ec1da6032e6

tools/emulator/opengl/host/libs/libOpenglRender/FBConfig.h

@@ -0,0 +1,60 @@
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#ifndef _LIBRENDER_FBCONFIG_H
+#define _LIBRENDER_FBCONFIG_H
+
+#include <EGL/egl.h>
+#include <GLES/gl.h>
+
+class FrameBuffer;
+
+enum InitConfigStatus {
+    INIT_CONFIG_FAILED = 0,
+    INIT_CONFIG_PASSED = 1
+};
+
+class FBConfig
+{
+public:
+    static InitConfigStatus initConfigList(FrameBuffer *fb);
+    static const FBConfig *get(int p_config);
+    static int getNumConfigs();
+    static int getNumAttribs() { return s_numConfigAttribs; }
+    static void packConfigsInfo(GLuint *buffer);
+    static int chooseConfig(FrameBuffer *fb, EGLint * attribs, uint32_t * configs, uint32_t configs_size);
+    ~FBConfig();
+
+    EGLConfig getEGLConfig() const { return m_eglConfig; }
+    GLuint  getDepthSize() const { return (m_attribValues ? m_attribValues[0] : 0); }
+    GLuint  getStencilSize() const { return (m_attribValues ? m_attribValues[1] : 0); }
+    GLuint  getRenderableType() const { return (m_attribValues ? m_attribValues[2] : 0); }
+    GLuint getSurfaceType() const { return (m_attribValues ? m_attribValues[3] : 0); }
+
+private:
+    FBConfig(EGLDisplay p_eglDpy, EGLConfig p_eglCfg);
+
+private:
+    static FBConfig **s_fbConfigs;
+    static int s_numConfigs;
+    static const int s_numConfigAttribs;
+    static const GLuint s_configAttribs[];
+
+private:
+    EGLConfig m_eglConfig;
+    GLint *m_attribValues;
+};
+
+#endif