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/shared/OpenglCodecCommon/GLSharedGroup.h

@@ -0,0 +1,111 @@
+/*
+* 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 _GL_SHARED_GROUP_H_
+#define _GL_SHARED_GROUP_H_
+
+#define GL_API
+#ifndef ANDROID
+#define GL_APIENTRY
+#define GL_APIENTRYP
+#endif
+
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "ErrorLog.h"
+#include <utils/KeyedVector.h>
+#include <utils/threads.h>
+#include <utils/List.h>
+#include "FixedBuffer.h"
+#include "SmartPtr.h"
+
+struct BufferData {
+    BufferData();
+    BufferData(GLsizeiptr size, void * data);
+    GLsizeiptr  m_size;
+    FixedBuffer m_fixedBuffer;    
+};
+
+class ProgramData {
+private:
+    typedef struct _IndexInfo {
+        GLint base;
+        GLint size;
+        GLenum type;
+        GLint appBase;
+        GLint hostLocsPerElement;
+    } IndexInfo;
+
+    GLuint m_numIndexes;
+    IndexInfo* m_Indexes;
+    bool m_initialized;
+    bool m_locShiftWAR;
+public:
+    ProgramData();
+    void initProgramData(GLuint numIndexes);
+    bool isInitialized();
+    virtual ~ProgramData();
+    void setIndexInfo(GLuint index, GLint base, GLint size, GLenum type);
+    GLuint getIndexForLocation(GLint location);
+    GLenum getTypeForLocation(GLint location);
+
+    bool needUniformLocationWAR() const { return m_locShiftWAR; }
+    void setupLocationShiftWAR();
+    GLint locationWARHostToApp(GLint hostLoc, GLint arrIndex);
+    GLint locationWARAppToHost(GLint appLoc);
+    
+};
+
+class GLSharedGroup {
+private:
+    android::DefaultKeyedVector<GLuint, BufferData*>    m_buffers;
+    android::DefaultKeyedVector<GLuint, ProgramData*>    m_programs;
+    android::List<GLuint> m_shaders;
+    mutable android::Mutex       m_lock;
+public:
+    GLSharedGroup();
+    ~GLSharedGroup();
+    BufferData * getBufferData(GLuint bufferId);
+    void    addBufferData(GLuint bufferId, GLsizeiptr size, void * data);
+    void    updateBufferData(GLuint bufferId, GLsizeiptr size, void * data);
+    GLenum  subUpdateBufferData(GLuint bufferId, GLintptr offset, GLsizeiptr size, void * data);
+    void    deleteBufferData(GLuint);
+
+    bool    isProgram(GLuint program);
+    bool    isProgramInitialized(GLuint program);
+    void    addProgramData(GLuint program); 
+    void    initProgramData(GLuint program, GLuint numIndexes);
+    void    deleteProgramData(GLuint program);
+    void    setProgramIndexInfo(GLuint program, GLuint index, GLint base, GLint size, GLenum type);
+    GLenum  getProgramUniformType(GLuint program, GLint location);
+    void    setupLocationShiftWAR(GLuint program);
+    GLint   locationWARHostToApp(GLuint program, GLint hostLoc, GLint arrIndex);
+    GLint   locationWARAppToHost(GLuint program, GLint appLoc);
+    bool    needUniformLocationWAR(GLuint program);
+
+    void    addShaderData(GLuint shader);
+    bool    isShader(GLuint shader);
+    void    deleteShaderData(GLuint shader);
+
+};
+
+typedef SmartPtr<GLSharedGroup> GLSharedGroupPtr; 
+
+#endif //_GL_SHARED_GROUP_H_