1 /* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     2  *

     3  * Permission is hereby granted, free of charge, to any person obtaining a

     4  * copy of this software and /or associated documentation files

     5  * (the "Materials "), to deal in the Materials without restriction,

     6  * including without limitation the rights to use, copy, modify, merge,

     7  * publish, distribute, sublicense, and/or sell copies of the Materials,

     8  * and to permit persons to whom the Materials are furnished to do so,

     9  * subject to the following conditions:

    10  *

    11  * The above copyright notice and this permission notice shall be included

    12  * in all copies or substantial portions of the Materials.

    13  *

    14  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

    15  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

    16  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

    17  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

    18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

    19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR

    20  * THE USE OR OTHER DEALINGS IN THE MATERIALS.

    21  *

    22  * Initial Contributors:

    23  * Nokia Corporation - initial contribution.

    24  *

    25  * Contributors:

    26  *

    27  * Description:

    28  *

    29  */

    30 

    31 #ifndef _GLESARRAY_H_

    32 #define _GLESARRAY_H_

    33 

    34 #include <GLES/gl.h>

    35 #include <cstddef>

    36 #include "GLESBuffer.h"

    37 

    38 class GLESArrayPointer

    39 {

    40 public:

    41 	GLESArrayPointer();

    42 	GLESArrayPointer(const void* pointer, int stride, int size, GLenum type);

    43 

    44 	int Size() { return m_size; }

    45 	GLenum Type() { return m_type; }

    46 

    47 	bool operator!=(void* pointer) { return m_pointer != pointer; }

    48 	GLESArrayPointer& operator+=(int step) { m_pointer += step * m_stride; return *this; }

    49 	const void* operator[](int i) { return m_pointer + i * m_stride; }

    50 

    51 private:

    52 	const char* m_pointer;

    53 	int m_stride;

    54 	int m_size;

    55 	GLenum m_type;

    56 };

    57 

    58 class GLESArray

    59 {

    60 public:

    61 	GLESArray();

    62 	GLESArray(int size, GLenum type, int stride, void* pointer, const GLESBuffer* buffer, bool ownsData=false);

    63 	~GLESArray();

    64 

    65 	int Size() const { return m_size; }

    66 	GLenum Type() const { return m_type; }

    67 	int Stride() const { return m_stride; }

    68 	const void* Pointer() const { return m_pointer; }

    69 	GLESArrayPointer ArrayPointer() const;

    70 	const GLESBuffer* Buffer() const { return m_buffer; }

    71 	unsigned int BufferName() const { return m_buffer ? m_buffer->name : 0; }

    72 	const void* BufferPointer() const { return m_buffer ? m_buffer->data : NULL; }

    73 

    74 	GLESArray* Convert(int count) const;

    75 

    76 	void ReleaseBuffer() { m_buffer = NULL; }

    77 	

    78 private:

    79 	int m_size;

    80 	GLenum m_type;

    81 	int m_stride;

    82 	void* m_pointer;

    83 	bool m_ownsData;

    84 	const GLESBuffer* m_buffer;

    85 };

    86 

    87 #endif // _GLESARRAY_H_