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mutter/cogl/cogl-texture-2d-sliced-private.h

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[cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced cogl-texture-2d-sliced provides an implementation of CoglTexture and this seperation lays the foundation for potentially supporting atlas textures, pixmap textures (as in GLX_EXT_texture_from_pixmap) and fast-path GL_TEXTURE_{1D,2D,3D,RECTANGLE} textures in a maintainable fashion.
2009-08-30 06:36:11 -04:00
/*
* 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
Remove mentions of the FSF address Since using addresses that might change is something that finally the FSF acknowledge as a plausible scenario (after changing address twice), the license blurb in the source files should use the URI for getting the license in case the library did not come with it. Not that URIs cannot possibly change, but at least it's easier to set up a redirection at the same place. As a side note: this commit closes the oldes bug in Clutter's bug report tool. http://bugzilla.openedhand.com/show_bug.cgi?id=521
2010-03-01 07:56:10 -05:00
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
[cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced cogl-texture-2d-sliced provides an implementation of CoglTexture and this seperation lays the foundation for potentially supporting atlas textures, pixmap textures (as in GLX_EXT_texture_from_pixmap) and fast-path GL_TEXTURE_{1D,2D,3D,RECTANGLE} textures in a maintainable fashion.
2009-08-30 06:36:11 -04:00
*/
#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;
struct _CoglTexture2DSliced
{
CoglTexture _parent;
cogl: Move all of the fields from CoglTexture to CoglTexture2DSliced 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.
2009-11-26 13:58:17 -05:00
GArray *slice_x_spans;
GArray *slice_y_spans;
GArray *slice_gl_handles;
cogl: improves header and coding style consistency We've had complaints that our Cogl code/headers are a bit "special" so this is a first pass at tidying things up by giving them some consistency. These changes are all consistent with how new code in Cogl is being written, but the style isn't consistently applied across all code yet. There are two parts to this patch; but since each one required a large amount of effort to maintain tidy indenting it made sense to combine the changes to reduce the time spent re indenting the same lines. The first change is to use a consistent style for declaring function prototypes in headers. Cogl headers now consistently use this style for prototypes: return_type cogl_function_name (CoglType arg0, CoglType arg1); Not everyone likes this style, but it seems that most of the currently active Cogl developers agree on it. The second change is to constrain the use of redundant glib data types in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all been replaced with int, unsigned int, float, long, unsigned long and char respectively. When talking about pixel data; use of guchar has been replaced with guint8, otherwise unsigned char can be used. The glib types that we continue to use for portability are gboolean, gint{8,16,32,64}, guint{8,16,32,64} and gsize. The general intention is that Cogl should look palatable to the widest range of C programmers including those outside the Gnome community so - especially for the public API - we want to minimize the number of foreign looking typedefs.
2010-02-09 20:57:32 -05:00
int max_waste;
cogl: Move all of the fields from CoglTexture to CoglTexture2DSliced 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.
2009-11-26 13:58:17 -05:00
/* 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;
cogl: improves header and coding style consistency We've had complaints that our Cogl code/headers are a bit "special" so this is a first pass at tidying things up by giving them some consistency. These changes are all consistent with how new code in Cogl is being written, but the style isn't consistently applied across all code yet. There are two parts to this patch; but since each one required a large amount of effort to maintain tidy indenting it made sense to combine the changes to reduce the time spent re indenting the same lines. The first change is to use a consistent style for declaring function prototypes in headers. Cogl headers now consistently use this style for prototypes: return_type cogl_function_name (CoglType arg0, CoglType arg1); Not everyone likes this style, but it seems that most of the currently active Cogl developers agree on it. The second change is to constrain the use of redundant glib data types in Cogl. Uses of gint, guint, gfloat, glong, gulong and gchar have all been replaced with int, unsigned int, float, long, unsigned long and char respectively. When talking about pixel data; use of guchar has been replaced with guint8, otherwise unsigned char can be used. The glib types that we continue to use for portability are gboolean, gint{8,16,32,64}, guint{8,16,32,64} and gsize. The general intention is that Cogl should look palatable to the widest range of C programmers including those outside the Gnome community so - especially for the public API - we want to minimize the number of foreign looking typedefs.
2010-02-09 20:57:32 -05:00
int width;
int height;
cogl: Move all of the fields from CoglTexture to CoglTexture2DSliced 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.
2009-11-26 13:58:17 -05:00
GLenum min_filter;
GLenum mag_filter;
gboolean is_foreign;
Split the wrap mode of _cogl_texture_set_wrap_mode into three GL supports setting different wrap modes for the s, t and r coordinates so we should design the backend interface to support that also. The r coordinate is not currently used by any of the backends but we might as well have it to make life easier if we ever add support for 3D textures. http://bugzilla.openedhand.com/show_bug.cgi?id=2063
2010-03-25 13:29:22 -04:00
GLenum wrap_mode_s;
GLenum wrap_mode_t;
cogl: Move all of the fields from CoglTexture to CoglTexture2DSliced 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.
2009-11-26 13:58:17 -05:00
gboolean auto_mipmap;
gboolean mipmaps_dirty;
[cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced cogl-texture-2d-sliced provides an implementation of CoglTexture and this seperation lays the foundation for potentially supporting atlas textures, pixmap textures (as in GLX_EXT_texture_from_pixmap) and fast-path GL_TEXTURE_{1D,2D,3D,RECTANGLE} textures in a maintainable fashion.
2009-08-30 06:36:11 -04:00
/* 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. */
cogl: Move all of the fields from CoglTexture to CoglTexture2DSliced 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.
2009-11-26 13:58:17 -05:00
CoglTexturePixel *first_pixels;
[cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced cogl-texture-2d-sliced provides an implementation of CoglTexture and this seperation lays the foundation for potentially supporting atlas textures, pixmap textures (as in GLX_EXT_texture_from_pixmap) and fast-path GL_TEXTURE_{1D,2D,3D,RECTANGLE} textures in a maintainable fashion.
2009-08-30 06:36:11 -04:00
};
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_foreign (GLuint gl_handle,
GLenum gl_target,
GLuint width,
GLuint height,
GLuint x_pot_waste,
GLuint y_pot_waste,
CoglPixelFormat format);
CoglHandle
cogl-bitmap: Encapsulate the CoglBitmap even internally The CoglBitmap struct is now only defined within cogl-bitmap.c so that all of its members can now only be accessed with accessor functions. To get to the data pointer for the bitmap image you must first call _cogl_bitmap_map and later call _cogl_bitmap_unmap. The map function takes the same arguments as cogl_pixel_array_map so that eventually we can make a bitmap optionally internally divert to a pixel array. There is a _cogl_bitmap_new_from_data function which constructs a new bitmap object and takes ownership of the data pointer. The function gets passed a destroy callback which gets called when the bitmap is freed. This is similar to how gdk_pixbuf_new_from_data works. Alternatively NULL can be passed for the destroy function which means that the caller will manage the life of the pointer (but must guarantee that it stays alive at least until the bitmap is freed). This mechanism is used instead of the old approach of creating a CoglBitmap struct on the stack and manually filling in the members. It could also later be used to create a CoglBitmap that owns a GdkPixbuf ref so that we don't necessarily have to copy the GdkPixbuf data when converting to a bitmap. There is also _cogl_bitmap_new_shared. This creates a bitmap using a reference to another CoglBitmap for the data. This is a bit of a hack but it is needed by the atlas texture backend which wants to divert the set_region virtual to another texture but it needs to override the format of the bitmap to ignore the premult flag.
2010-07-07 13:44:16 -04:00
_cogl_texture_2d_sliced_new_from_bitmap (CoglBitmap *bmp,
[cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced cogl-texture-2d-sliced provides an implementation of CoglTexture and this seperation lays the foundation for potentially supporting atlas textures, pixmap textures (as in GLX_EXT_texture_from_pixmap) and fast-path GL_TEXTURE_{1D,2D,3D,RECTANGLE} textures in a maintainable fashion.
2009-08-30 06:36:11 -04:00
CoglTextureFlags flags,
CoglPixelFormat internal_format);
#endif /* __COGL_TEXTURE_2D_SLICED_H */
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