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 associated documentation files (the "Software"),

     5  * to deal in the Software without restriction, including without limitation

     6  * the rights to use, copy, modify, merge, publish, distribute, sublicense,

     7  * and/or sell copies of the Software, and to permit persons to whom the

     8  * Software is furnished to do so, subject to the following conditions:

     9  *

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

    11  * in all copies or substantial portions of the Software.

    12  *

    13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

    14  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

    16  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

    17  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

    18  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    19  *

    20  * Initial Contributors:

    21  * Nokia Corporation - initial contribution.

    22  *

    23  * Contributors:

    24  *

    25  * Description:

    26  *

    27  */

    28 

    29 #ifndef TEXTURE_H_

    30 #define TEXTURE_H_

    31 

    32 typedef enum DGLTextureType

    33 {

    34 	DGLES2_TEXTURE_2D,

    35 	DGLES2_TEXTURE_CUBE_MAP

    36 } DGLTextureType;

    37 

    38 typedef struct DGLTextureLevel

    39 {

    40 	GLboolean specified;

    41 	GLenum format;

    42 	GLsizei width;

    43 	GLsizei height;

    44 	void* bound_surface; // The EGLSurface bound to this image with eglBindTexImage.

    45 } DGLTextureLevel;

    46 

    47 typedef struct DGLTexture

    48 {

    49 	struct DGLObject obj;

    50 

    51 	DGLTextureType type;

    52 

    53 	// One for each face in case of a cube map texture.

    54 	int num_levels[6];

    55 	DGLTextureLevel* levels[6];

    56 	GLeglImageOES egl_image[6]; // EGLimage this texture is a sibling of.

    57 } DGLTexture;

    58 

    59 DGLTexture*			DGLTexture_create(GLuint name, DGLTextureType type, GLint num_levels);

    60 void				DGLTexture_destroy(DGLTexture* texture);

    61 GLboolean			DGLTexture_isComplete(const DGLTexture* texture);

    62 GLboolean			DGLTexture_hasLevelZero(const DGLTexture* texture);

    63 GLboolean			DGLTexture_hasLevelsOtherThanZero(const DGLTexture* texture);

    64 DGLTextureLevel*	DGLTexture_getLevel(DGLTexture* texture, GLenum target, GLint level);

    65 void				DGLTexture_setLevel(DGLTexture* texture, GLenum target, GLint level, GLenum format, GLsizei width, GLsizei height);

    66 GLeglImageOES		DGLTexture_getEGLImage(DGLTexture* texture, GLenum target);

    67 void				DGLTexture_setEGLImage(DGLTexture* texture, GLenum target, GLeglImageOES image);

    68 void				DGLTexture_generateMipmap(DGLTexture* texture);

    69 

    70 #endif // TEXTURE_H_