25f3b993c6
Most of the fields that were previously in CoglTexture are specific to the implementation of CoglTexture2DSliced so they should be placed there instead. For example, the 'mipmaps_dirty' flag is an implementation detail of the ensure_mipmaps function so it doesn't make sense to force all texture backends to have this function. Other fields such as width, height, gl_format and format may make sense for all textures but I've added them as virtual functions instead. This may make more sense for a sub-texture backend for example where it can calculate these based on the full texture.
118 lines
4.3 KiB
C
118 lines
4.3 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __COGL_TEXTURE_2D_SLICED_H
|
|
#define __COGL_TEXTURE_2D_SLICED_H
|
|
|
|
#include "cogl-bitmap-private.h"
|
|
#include "cogl-handle.h"
|
|
#include "cogl-material-private.h"
|
|
#include "cogl-texture-private.h"
|
|
|
|
#define COGL_TEXTURE_2D_SLICED(tex) ((CoglTexture2DSliced *)tex)
|
|
|
|
typedef struct _CoglTexture2DSliced CoglTexture2DSliced;
|
|
typedef struct _CoglTexturePixel CoglTexturePixel;
|
|
|
|
/* This is used to store the first pixel of each slice. This is only
|
|
used when glGenerateMipmap is not available */
|
|
struct _CoglTexturePixel
|
|
{
|
|
/* We need to store the format of the pixel because we store the
|
|
data in the source format which might end up being different for
|
|
each slice if a subregion is updated with a different format */
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
guint8 data[4];
|
|
};
|
|
|
|
struct _CoglTexture2DSliced
|
|
{
|
|
CoglTexture _parent;
|
|
GArray *slice_x_spans;
|
|
GArray *slice_y_spans;
|
|
GArray *slice_gl_handles;
|
|
gint max_waste;
|
|
|
|
/* The internal format of the GL texture represented as a
|
|
CoglPixelFormat */
|
|
CoglPixelFormat format;
|
|
/* The internal format of the GL texture represented as a GL enum */
|
|
GLenum gl_format;
|
|
GLenum gl_target;
|
|
gint width;
|
|
gint height;
|
|
GLenum min_filter;
|
|
GLenum mag_filter;
|
|
gboolean is_foreign;
|
|
GLint wrap_mode;
|
|
gboolean auto_mipmap;
|
|
gboolean mipmaps_dirty;
|
|
|
|
/* This holds a copy of the first pixel in each slice. It is only
|
|
used to force an automatic update of the mipmaps when
|
|
glGenerateMipmap is not available. */
|
|
CoglTexturePixel *first_pixels;
|
|
};
|
|
|
|
GQuark
|
|
_cogl_handle_texture_2d_sliced_get_type (void);
|
|
|
|
CoglHandle
|
|
_cogl_texture_2d_sliced_new_with_size (unsigned int width,
|
|
unsigned int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format);
|
|
|
|
CoglHandle
|
|
_cogl_texture_2d_sliced_new_from_file (const gchar *filename,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format,
|
|
GError **error);
|
|
|
|
CoglHandle
|
|
_cogl_texture_2d_sliced_new_from_foreign (GLuint gl_handle,
|
|
GLenum gl_target,
|
|
GLuint width,
|
|
GLuint height,
|
|
GLuint x_pot_waste,
|
|
GLuint y_pot_waste,
|
|
CoglPixelFormat format);
|
|
|
|
CoglHandle
|
|
_cogl_texture_2d_sliced_new_from_data (unsigned int width,
|
|
unsigned int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat format,
|
|
CoglPixelFormat internal_format,
|
|
unsigned int rowstride,
|
|
const guint8 *data);
|
|
|
|
|
|
CoglHandle
|
|
_cogl_texture_2d_sliced_new_from_bitmap (CoglHandle bmp_handle,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format);
|
|
|
|
#endif /* __COGL_TEXTURE_2D_SLICED_H */
|