--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hostsupport/hostopengles11/inc/GLESContext.h	Wed Oct 06 17:59:01 2010 +0100
@@ -0,0 +1,205 @@
+/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and /or associated documentation files
+ * (the "Materials "), to deal in the Materials without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Materials,
+ * and to permit persons to whom the Materials are furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Materials.
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
+ * THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:
+ *
+ */
+
+#ifndef _GLESCONTEXT_H_
+#define _GLESCONTEXT_H_
+
+#include <GLES/gl.h>
+#include <map>
+#include <iostream>
+#include "GLESArray.h"
+#include "glesInternal.h"
+#include "GLESDesktopGL.h"
+#include "glesOS.h"
+#include "EGLInterface.h"
+
+struct GLESBuffer;
+class GLESTexture;
+struct GLESTextureLevel;
+
+namespace
+{
+typedef std::map<unsigned int, GLESBuffer*> BufferMap;
+typedef std::map<unsigned int, GLESTexture*> TextureMap;
+}
+
+enum GLESArrayFlag
+{
+	GLES_INVALID_ARRAY			= 0,
+	GLES_VERTEX_ARRAY			= 1 << 0,
+	GLES_NORMAL_ARRAY			= 1 << 1,
+	GLES_COLOR_ARRAY			= 1 << 2,
+	GLES_POINT_SIZE_ARRAY		= 1 << 3,
+	GLES_TEXTURE_COORD_ARRAY	= 1 << 4
+};
+
+class GLESContext {
+public:
+	GLESContext(void* nativeContext);
+	~GLESContext();
+
+	bool Initialize();
+
+	bool IsInitialized() const { return m_initialized; }
+	const GLESDesktopGL& DGL() const { return m_dgl; }
+	void* NativeContext() const { return m_nativeContext; }
+	GLenum Error() const { return m_error; }
+	GLenum GetHostError();
+	unsigned int MaxTextureLevel() const { return m_maxTextureLevel; }
+	unsigned int MaxTextureUnits() const { return m_maxTextureUnits; }
+	unsigned int MaxClipPlanes() const { return m_maxClipPlanes; }
+	unsigned int MaxLights() const { return m_maxLights; }
+	int ClientActiveTexture() const { return m_clientActiveTexture; }
+	GLESArray& VertexArray() { return m_vertexArray; }
+	const GLESArray& VertexArray() const { return m_vertexArray; }
+	GLESArray& NormalArray() { return m_normalArray; }
+	const GLESArray& NormalArray() const { return m_normalArray; }
+	GLESArray& ColorArray() { return m_colorArray; }
+	const GLESArray& ColorArray() const { return m_colorArray; }
+	const GLESArray& PointSizeArray() const { return m_pointSizeArray; }
+	GLESArray& TexCoordArray(unsigned int texture);
+	GLESArray& TexCoordArray();
+	const GLESArray& TexCoordArray(unsigned int texture) const;
+	const GLESArray& TexCoordArray() const;
+	unsigned int ArrayBufferBinding() const { return m_arrayBufferBinding; }
+	GLESBuffer* ArrayBuffer();
+	unsigned int ElementArrayBufferBinding() const { return m_elementArrayBufferBinding; }
+	GLESBuffer* ElementArrayBuffer();
+	const GLESBuffer* Buffer(unsigned int buffer) const;
+	unsigned int TextureBinding() const { return m_textureBinding; }
+	GLESTexture* Texture(unsigned int name);
+	const GLESTextureLevel* TextureLevel(GLint level) const;
+
+	bool IsArrayEnabled(GLESArrayFlag array) const { return !!(m_enabledArrays & array); }
+
+	void SetError(GLenum error) { m_error = error; }
+	void SetClientActiveTexture(int texture) { m_clientActiveTexture = texture; }
+	void SetVertexArray(int size, GLenum type, int stride, const void *pointer);
+	void SetNormalArray(GLenum type, int stride, const void *pointer);
+	void SetColorArray(int size, GLenum type, int stride, const void *pointer);
+	void SetPointerSizeArray(GLenum type, int stride, const void *pointer);
+	void SetTexCoordArray(int size, GLenum type, int stride, const void *pointer);
+
+	void EnableArray(GLESArrayFlag array) { m_enabledArrays |= array; }
+	void DisableArray(GLESArrayFlag array) { m_enabledArrays &= ~array; }
+
+	void ReserveBufferNames(int num, unsigned int* names);
+	void DeleteBuffer(unsigned int buffer);
+	
+	bool BindArrayBuffer(unsigned int buffer);
+	bool BindElementArrayBuffer(unsigned int buffer);
+
+	void DeleteTexture(unsigned int texture);
+	bool BindTexture(unsigned int texture);
+
+private:
+	bool m_initialized;
+	void* m_nativeContext;
+	GLESDesktopGL m_dgl;
+	GLenum m_error;
+	unsigned int m_maxTextureLevel;
+	unsigned int m_maxTextureUnits;
+	unsigned int m_maxClipPlanes;
+	unsigned int m_maxLights;
+	int m_clientActiveTexture;
+	GLESArray m_vertexArray;
+	GLESArray m_normalArray;
+	GLESArray m_colorArray;
+	GLESArray m_pointSizeArray;
+	GLESArray* m_texCoordArray;
+	unsigned int m_enabledArrays;
+	unsigned int m_arrayBufferBinding;
+	unsigned int m_elementArrayBufferBinding;
+	unsigned int m_textureBinding;
+	BufferMap m_buffers;
+	TextureMap m_textures;
+};
+
+void* glesGetCurrentGLESContext();
+
+#define GLES_ENTER_RET(RETVAL) \
+	GLESContext* ctx; \
+	do \
+	{ \
+		glesGetLock(); \
+		ctx = (GLESContext*)glesGetCurrentGLESContext(); \
+		if(!ctx) \
+		{ \
+			glesReleaseLock(); \
+			return RETVAL; \
+		} \
+		if(!ctx->IsInitialized()) \
+		{ \
+			if(!ctx->Initialize()) \
+			{ \
+				std::cerr << "Failed to initialize context" << std::endl; \
+				exit(1); \
+			} \
+		} \
+	} while(0)
+
+#define GLES_ENTER() GLES_ENTER_RET(GLES_NO_RETVAL)
+
+// Check the host error after every API function call so that the error flag
+// in the wrapper always contains the latest error.
+#define GLES_LEAVE_RET(RETVAL) \
+	do \
+	{ \
+		ctx->GetHostError(); \
+		glesReleaseLock(); \
+		return RETVAL; \
+	} while(0)
+
+#define GLES_LEAVE() GLES_LEAVE_RET(GLES_NO_RETVAL)
+
+#define GLES_LEAVE_NO_ERROR_CHECK_RET(RETVAL) \
+	do \
+	{ \
+		glesReleaseLock(); \
+		return RETVAL; \
+	} while(0)
+
+#define GLES_LEAVE_NO_ERROR_CHECK() GLES_LEAVE_NO_ERROR_CHECK_RET(GLES_NO_RETVAL)
+
+#define GLES_ERROR_IF_RET(COND, ERROR, RETVAL) \
+	do \
+	{ \
+		if(COND) \
+		{ \
+			ctx->SetError(ERROR); \
+			return RETVAL; \
+		} \
+	} while(0)
+
+#define GLES_ERROR_IF(COND, ERROR) GLES_ERROR_IF_RET(COND, ERROR, GLES_NO_RETVAL)
+#define GLES_ERROR_RET(ERROR, RETVAL) GLES_ERROR_IF_RET(true, ERROR, RETVAL)
+#define GLES_ERROR(ERROR) GLES_ERROR_IF(true, ERROR)
+
+#endif // _GLESCONTEXT_H_
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