2008-04-25 13:37:36 +00:00
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/*
|
2009-04-27 14:48:12 +00:00
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* Cogl
|
2008-04-25 13:37:36 +00:00
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*
|
2009-04-27 14:48:12 +00:00
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|
* An object oriented GL/GLES Abstraction/Utility Layer
|
2008-04-25 13:37:36 +00:00
|
|
|
*
|
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.
2010-02-10 01:57:32 +00:00
|
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|
* Copyright (C) 2007,2008,2009,2010 Intel Corporation.
|
2008-04-25 13:37:36 +00:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
|
2009-04-27 14:48:12 +00:00
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* version 2 of the License, or (at your option) any later version.
|
2008-04-25 13:37:36 +00:00
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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|
* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
|
2010-03-01 12:56:10 +00:00
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|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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2008-04-25 13:37:36 +00:00
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*/
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#ifdef HAVE_CONFIG_H
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|
|
#include "config.h"
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|
|
#endif
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|
2009-03-09 17:06:22 +00:00
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|
#include <glib-object.h>
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|
|
#include <gobject/gvaluecollector.h>
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|
2008-04-25 13:37:36 +00:00
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#include "cogl.h"
|
2009-02-19 12:02:42 +00:00
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|
2009-03-09 17:06:22 +00:00
|
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|
#include "cogl-fixed.h"
|
2008-04-25 13:37:36 +00:00
|
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|
#include "cogl-internal.h"
|
2010-10-27 17:54:57 +00:00
|
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|
#include "cogl-pipeline.h"
|
2009-02-19 12:02:42 +00:00
|
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|
#include "cogl-offscreen.h"
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|
|
#include "cogl-shader.h"
|
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|
|
#include "cogl-texture.h"
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|
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#include "cogl-types.h"
|
2009-04-01 16:16:44 +00:00
|
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|
#include "cogl-handle.h"
|
2008-04-25 13:37:36 +00:00
|
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|
#include "cogl-util.h"
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|
2010-09-15 13:39:05 +00:00
|
|
|
/*
|
2008-04-25 13:37:36 +00:00
|
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|
* cogl_util_next_p2:
|
2010-09-15 13:39:05 +00:00
|
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|
* @a: Value to get the next power of two
|
2008-04-25 13:37:36 +00:00
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*
|
2010-09-15 13:39:05 +00:00
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* Calculates the next power of two greater than or equal to @a.
|
2008-04-25 13:37:36 +00:00
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*
|
2010-09-15 13:39:05 +00:00
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* Return value: @a if @a is already a power of two, otherwise returns
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* the next nearest power of two.
|
2008-04-25 13:37:36 +00:00
|
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|
*/
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int
|
2010-09-15 13:39:05 +00:00
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|
_cogl_util_next_p2 (int a)
|
2008-04-25 13:37:36 +00:00
|
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|
{
|
2010-01-27 21:26:26 +00:00
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int rval = 1;
|
2008-04-25 13:37:36 +00:00
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|
2010-01-27 21:26:26 +00:00
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|
while (rval < a)
|
2008-04-25 13:37:36 +00:00
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|
rval <<= 1;
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|
return rval;
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}
|
2009-02-19 12:02:42 +00:00
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/* gtypes */
|
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|
2009-03-09 17:06:22 +00:00
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/*
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|
* CoglFixed
|
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|
*/
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static GTypeInfo _info = {
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0,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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0,
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0,
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NULL,
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NULL,
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|
};
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static GTypeFundamentalInfo _finfo = { 0, };
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static void
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cogl_value_init_fixed (GValue *value)
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|
{
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|
value->data[0].v_int = 0;
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|
|
|
}
|
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|
|
static void
|
|
|
|
cogl_value_copy_fixed (const GValue *src,
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
GValue *dest)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
dest->data[0].v_int = src->data[0].v_int;
|
|
|
|
}
|
|
|
|
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
static char *
|
|
|
|
cogl_value_collect_fixed (GValue *value,
|
|
|
|
unsigned int n_collect_values,
|
|
|
|
GTypeCValue *collect_values,
|
|
|
|
unsigned int collect_flags)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
value->data[0].v_int = collect_values[0].v_int;
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
static char *
|
2009-03-09 17:06:22 +00:00
|
|
|
cogl_value_lcopy_fixed (const GValue *value,
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
unsigned int n_collect_values,
|
|
|
|
GTypeCValue *collect_values,
|
|
|
|
unsigned int collect_flags)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
gint32 *fixed_p = collect_values[0].v_pointer;
|
|
|
|
|
|
|
|
if (!fixed_p)
|
2009-03-17 14:12:01 +00:00
|
|
|
return g_strdup_printf ("value location for '%s' passed as NULL",
|
2009-03-09 17:06:22 +00:00
|
|
|
G_VALUE_TYPE_NAME (value));
|
|
|
|
|
|
|
|
*fixed_p = value->data[0].v_int;
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cogl_value_transform_fixed_int (const GValue *src,
|
|
|
|
GValue *dest)
|
|
|
|
{
|
|
|
|
dest->data[0].v_int = COGL_FIXED_TO_INT (src->data[0].v_int);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cogl_value_transform_fixed_double (const GValue *src,
|
|
|
|
GValue *dest)
|
|
|
|
{
|
|
|
|
dest->data[0].v_double = COGL_FIXED_TO_DOUBLE (src->data[0].v_int);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cogl_value_transform_fixed_float (const GValue *src,
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
GValue *dest)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
dest->data[0].v_float = COGL_FIXED_TO_FLOAT (src->data[0].v_int);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cogl_value_transform_int_fixed (const GValue *src,
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
GValue *dest)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
dest->data[0].v_int = COGL_FIXED_FROM_INT (src->data[0].v_int);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cogl_value_transform_double_fixed (const GValue *src,
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
GValue *dest)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
dest->data[0].v_int = COGL_FIXED_FROM_DOUBLE (src->data[0].v_double);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cogl_value_transform_float_fixed (const GValue *src,
|
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.
2010-02-10 01:57:32 +00:00
|
|
|
GValue *dest)
|
2009-03-09 17:06:22 +00:00
|
|
|
{
|
|
|
|
dest->data[0].v_int = COGL_FIXED_FROM_FLOAT (src->data[0].v_float);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const GTypeValueTable _cogl_fixed_value_table = {
|
|
|
|
cogl_value_init_fixed,
|
|
|
|
NULL,
|
|
|
|
cogl_value_copy_fixed,
|
|
|
|
NULL,
|
|
|
|
"i",
|
|
|
|
cogl_value_collect_fixed,
|
|
|
|
"p",
|
|
|
|
cogl_value_lcopy_fixed
|
|
|
|
};
|
|
|
|
|
|
|
|
GType
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cogl_fixed_get_type (void)
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{
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static GType _cogl_fixed_type = 0;
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if (G_UNLIKELY (_cogl_fixed_type == 0))
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{
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_info.value_table = & _cogl_fixed_value_table;
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_cogl_fixed_type =
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g_type_register_fundamental (g_type_fundamental_next (),
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g_intern_static_string ("CoglFixed"),
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&_info, &_finfo, 0);
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g_value_register_transform_func (_cogl_fixed_type, G_TYPE_INT,
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cogl_value_transform_fixed_int);
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g_value_register_transform_func (G_TYPE_INT, _cogl_fixed_type,
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cogl_value_transform_int_fixed);
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g_value_register_transform_func (_cogl_fixed_type, G_TYPE_FLOAT,
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cogl_value_transform_fixed_float);
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g_value_register_transform_func (G_TYPE_FLOAT, _cogl_fixed_type,
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cogl_value_transform_float_fixed);
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2010-01-27 21:26:26 +00:00
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2009-03-09 17:06:22 +00:00
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g_value_register_transform_func (_cogl_fixed_type, G_TYPE_DOUBLE,
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cogl_value_transform_fixed_double);
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g_value_register_transform_func (G_TYPE_DOUBLE, _cogl_fixed_type,
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cogl_value_transform_double_fixed);
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}
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return _cogl_fixed_type;
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}
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2010-11-04 13:57:36 +00:00
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unsigned int
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_cogl_util_one_at_a_time_mix (unsigned int hash)
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{
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hash += ( hash << 3 );
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hash ^= ( hash >> 11 );
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hash += ( hash << 15 );
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return hash;
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}
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2009-03-09 17:06:22 +00:00
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