1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Graphics Resource - constants

    15 //

    16 

    17 #ifndef SGCONST_H

    18 #define SGCONST_H

    19 

    20 #include <pixelformats.h>

    21 #include <sgresource/sgerror.h>

    22 

    23 /**

    24 The constants defined in TSgUsageBits correspond to the different usages for which 

    25 an image can be created.  They can be combined using the bitwise OR operator to 

    26 specify more than one usage.

    27 */

    28 enum TSgUsageBits

    29 	{

    30 	/** Usage as a VGImage with OpenVG via EGLImage.*/

    31 	ESgUsageBitOpenVgImage        = 0x0001,

    32 	/** Usage as a two-dimensional texture with OpenGL ES 1.x via EGLImage.*/

    33 	ESgUsageBitOpenGlesTexture2D  = 0x0002,

    34 	/** Usage as a two-dimensional texture with OpenGL ES 2.x via EGLImage.*/

    35 	ESgUsageBitOpenGles2Texture2D = 0x0004,

    36 	/** Usage as a target of an OpenVG rendering context.*/

    37 	ESgUsageBitOpenVgSurface      = 0x0010,

    38 	/** Usage as a target of an OpenGL ES 1.x rendering context.*/

    39 	ESgUsageBitOpenGlesSurface    = 0x0020,

    40 	/** Usage as a target of an OpenGL ES 2.x rendering context.*/

    41 	ESgUsageBitOpenGles2Surface   = 0x0040,

    42 	/** Usage as a target of an OpenGL rendering context.*/

    43 	ESgUsageBitOpenGlSurface      = 0x0080

    44 	};

    45 

    46 /**

    47 The subset of pixel formats defined in pixelformats.h which are guaranteed to be 

    48 supported by all implementations of the Graphics Resource API.

    49 */

    50 enum TSgPixelFormat

    51 	{

    52 	ESgPixelFormatARGB_8888_PRE = EUidPixelFormatARGB_8888_PRE,

    53 	ESgPixelFormatARGB_8888     = EUidPixelFormatARGB_8888,

    54 	ESgPixelFormatXRGB_8888     = EUidPixelFormatXRGB_8888,

    55 	ESgPixelFormatRGB_565       = EUidPixelFormatRGB_565,

    56 	ESgPixelFormatA_8           = EUidPixelFormatA_8

    57 	};

    58 

    59 #endif // SGCONST_H