mirror of
https://github.com/brl/mutter.git
synced 2024-09-20 14:35:48 -04:00
cogl: Adds experimental CoglPrimitive API
A CoglPrimitive is a retainable object for drawing a single primitive, such as a triangle strip, fan or list. CoglPrimitives build on CoglVertexAttributes and CoglIndices which themselves build on CoglVertexArrays and CoglIndexArrays respectively. A CoglPrimitive encapsulates enough information such that it can be retained in a queue (e.g. the Cogl Journal, or renderlists in the future) and drawn at some later time.
This commit is contained in:
Robert Bragg
parent
dd63078bd3
commit
0cd077dc7e
@ -76,6 +76,7 @@ cogl_public_h = \
|
||||
$(srcdir)/cogl-vertex-array.h \
|
||||
$(srcdir)/cogl-indices.h \
|
||||
$(srcdir)/cogl-vertex-attribute.h \
|
||||
$(srcdir)/cogl-primitive.h \
|
||||
$(srcdir)/cogl.h \
|
||||
$(NULL)
|
||||
|
||||
@ -217,6 +218,8 @@ cogl_sources_c = \
|
||||
$(srcdir)/cogl-indices.c \
|
||||
$(srcdir)/cogl-vertex-attribute-private.h \
|
||||
$(srcdir)/cogl-vertex-attribute.c \
|
||||
$(srcdir)/cogl-primitive-private.h \
|
||||
$(srcdir)/cogl-primitive.c \
|
||||
$(srcdir)/cogl-matrix.c \
|
||||
$(srcdir)/cogl-vector.c \
|
||||
$(srcdir)/cogl-matrix-private.h \
|
||||
|
||||
46
clutter/cogl/cogl/cogl-primitive-private.h
Normal file
46
clutter/cogl/cogl/cogl-primitive-private.h
Normal file
@ -0,0 +1,46 @@
|
||||
/*
|
||||
* Cogl
|
||||
*
|
||||
* An object oriented GL/GLES Abstraction/Utility Layer
|
||||
*
|
||||
* Copyright (C) 2010 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, see
|
||||
* <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*
|
||||
*
|
||||
* Authors:
|
||||
* Robert Bragg <robert@linux.intel.com>
|
||||
*/
|
||||
|
||||
#ifndef __COGL_PRIMITIVE_PRIVATE_H
|
||||
#define __COGL_PRIMITIVE_PRIVATE_H
|
||||
|
||||
#include "cogl-object-private.h"
|
||||
#include "cogl-vertex-array-private.h"
|
||||
|
||||
struct _CoglPrimitive
|
||||
{
|
||||
CoglObject _parent;
|
||||
|
||||
CoglVerticesMode mode;
|
||||
int first_vertex;
|
||||
int n_vertices;
|
||||
CoglIndices *indices;
|
||||
GArray *attributes;
|
||||
};
|
||||
|
||||
#endif /* __COGL_PRIMITIVE_PRIVATE_H */
|
||||
|
||||
223
clutter/cogl/cogl/cogl-primitive.c
Normal file
223
clutter/cogl/cogl/cogl-primitive.c
Normal file
@ -0,0 +1,223 @@
|
||||
/*
|
||||
* Cogl
|
||||
*
|
||||
* An object oriented GL/GLES Abstraction/Utility Layer
|
||||
*
|
||||
* Copyright (C) 2010 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, see
|
||||
* <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*
|
||||
*
|
||||
* Authors:
|
||||
* Robert Bragg <robert@linux.intel.com>
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include "cogl-object-private.h"
|
||||
#include "cogl-primitive.h"
|
||||
#include "cogl-primitive-private.h"
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
static void _cogl_primitive_free (CoglPrimitive *primitive);
|
||||
|
||||
COGL_OBJECT_DEFINE (Primitive, primitive);
|
||||
|
||||
/* XXX: should we have an n_attributes arg instead of NULL terminating? */
|
||||
CoglPrimitive *
|
||||
cogl_primitive_new_with_attributes_array (CoglVerticesMode mode,
|
||||
int n_vertices,
|
||||
CoglVertexAttribute **attributes)
|
||||
{
|
||||
CoglPrimitive *primitive = g_slice_new (CoglPrimitive);
|
||||
int i;
|
||||
|
||||
primitive->mode = mode;
|
||||
primitive->first_vertex = 0;
|
||||
primitive->n_vertices = n_vertices;
|
||||
primitive->indices = NULL;
|
||||
primitive->attributes =
|
||||
g_array_new (TRUE, FALSE, sizeof (CoglVertexAttribute *));
|
||||
|
||||
for (i = 0; attributes[i]; i++)
|
||||
{
|
||||
CoglVertexAttribute *attribute = attributes[i];
|
||||
cogl_object_ref (attribute);
|
||||
|
||||
g_return_val_if_fail (cogl_is_vertex_attribute (attributes), NULL);
|
||||
|
||||
g_array_append_val (primitive->attributes, attribute);
|
||||
}
|
||||
|
||||
return _cogl_primitive_object_new (primitive);
|
||||
}
|
||||
|
||||
CoglPrimitive *
|
||||
cogl_primitive_new (CoglVerticesMode mode,
|
||||
int n_vertices,
|
||||
...)
|
||||
{
|
||||
va_list ap;
|
||||
int n_attributes;
|
||||
CoglVertexAttribute **attributes;
|
||||
int i;
|
||||
CoglVertexAttribute *attribute;
|
||||
|
||||
va_start (ap, n_vertices);
|
||||
for (n_attributes = 0; va_arg (ap, CoglVertexAttribute *); n_attributes++)
|
||||
;
|
||||
va_end (ap);
|
||||
|
||||
attributes = g_alloca (sizeof (CoglVertexAttribute *) * (n_attributes + 1));
|
||||
attributes[n_attributes] = NULL;
|
||||
|
||||
va_start (ap, n_vertices);
|
||||
for (i = 0; (attribute = va_arg (ap, CoglVertexAttribute *)); i++)
|
||||
attributes[i] = attribute;
|
||||
va_end (ap);
|
||||
|
||||
return cogl_primitive_new_with_attributes_array (mode, n_vertices,
|
||||
attributes);
|
||||
}
|
||||
|
||||
static void
|
||||
free_attributes_list (CoglPrimitive *primitive)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < primitive->attributes->len; i++)
|
||||
{
|
||||
CoglVertexAttribute *attribute =
|
||||
g_array_index (primitive->attributes, CoglVertexAttribute *, i);
|
||||
cogl_object_unref (attribute);
|
||||
}
|
||||
g_array_set_size (primitive->attributes, 0);
|
||||
}
|
||||
|
||||
static void
|
||||
_cogl_primitive_free (CoglPrimitive *primitive)
|
||||
{
|
||||
free_attributes_list (primitive);
|
||||
|
||||
g_array_free (primitive->attributes, TRUE);
|
||||
|
||||
g_slice_free (CoglPrimitive, primitive);
|
||||
}
|
||||
|
||||
void
|
||||
cogl_primitive_set_attributes (CoglPrimitive *primitive,
|
||||
CoglVertexAttribute **attributes)
|
||||
{
|
||||
int i;
|
||||
|
||||
free_attributes_list (primitive);
|
||||
|
||||
g_array_set_size (primitive->attributes, 0);
|
||||
for (i = 0; attributes[i]; i++)
|
||||
{
|
||||
cogl_object_ref (attributes[i]);
|
||||
g_return_if_fail (cogl_is_vertex_attribute (attributes[i]));
|
||||
g_array_append_val (primitive->attributes, attributes[i]);
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
cogl_primitive_get_first_vertex (CoglPrimitive *primitive)
|
||||
{
|
||||
g_return_val_if_fail (cogl_is_primitive (primitive), 0);
|
||||
|
||||
return primitive->first_vertex;
|
||||
}
|
||||
|
||||
void
|
||||
cogl_primitive_set_first_vertex (CoglPrimitive *primitive,
|
||||
int first_vertex)
|
||||
{
|
||||
g_return_if_fail (cogl_is_primitive (primitive));
|
||||
|
||||
primitive->first_vertex = first_vertex;
|
||||
}
|
||||
|
||||
int
|
||||
cogl_primitive_get_n_vertices (CoglPrimitive *primitive)
|
||||
{
|
||||
g_return_val_if_fail (cogl_is_primitive (primitive), 0);
|
||||
|
||||
return primitive->n_vertices;
|
||||
}
|
||||
|
||||
void
|
||||
cogl_primitive_set_n_vertices (CoglPrimitive *primitive,
|
||||
int n_vertices)
|
||||
{
|
||||
g_return_if_fail (cogl_is_primitive (primitive));
|
||||
|
||||
primitive->n_vertices = n_vertices;
|
||||
}
|
||||
|
||||
CoglVerticesMode
|
||||
cogl_primitive_get_mode (CoglPrimitive *primitive)
|
||||
{
|
||||
g_return_val_if_fail (cogl_is_primitive (primitive), 0);
|
||||
|
||||
return primitive->mode;
|
||||
}
|
||||
|
||||
void
|
||||
cogl_primitive_set_mode (CoglPrimitive *primitive,
|
||||
CoglVerticesMode mode)
|
||||
{
|
||||
g_return_if_fail (cogl_is_primitive (primitive));
|
||||
|
||||
primitive->mode = mode;
|
||||
}
|
||||
|
||||
void
|
||||
cogl_primitive_set_indices (CoglPrimitive *primitive,
|
||||
CoglIndices *indices)
|
||||
{
|
||||
g_return_if_fail (cogl_is_primitive (primitive));
|
||||
|
||||
if (indices)
|
||||
cogl_object_ref (indices);
|
||||
if (primitive->indices)
|
||||
cogl_object_unref (primitive->indices);
|
||||
primitive->indices = indices;
|
||||
}
|
||||
|
||||
/* XXX: cogl_draw_primitive() ? */
|
||||
void
|
||||
cogl_primitive_draw (CoglPrimitive *primitive)
|
||||
{
|
||||
CoglVertexAttribute **attributes =
|
||||
(CoglVertexAttribute **)primitive->attributes->data;
|
||||
|
||||
if (primitive->indices)
|
||||
cogl_draw_indexed_vertex_attributes_array (primitive->mode,
|
||||
primitive->first_vertex,
|
||||
primitive->n_vertices,
|
||||
primitive->indices,
|
||||
attributes);
|
||||
else
|
||||
cogl_draw_vertex_attributes_array (primitive->mode,
|
||||
primitive->first_vertex,
|
||||
primitive->n_vertices,
|
||||
attributes);
|
||||
}
|
||||
|
||||
311
clutter/cogl/cogl/cogl-primitive.h
Normal file
311
clutter/cogl/cogl/cogl-primitive.h
Normal file
@ -0,0 +1,311 @@
|
||||
/*
|
||||
* Cogl
|
||||
*
|
||||
* An object oriented GL/GLES Abstraction/Utility Layer
|
||||
*
|
||||
* Copyright (C) 2010 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, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*
|
||||
*
|
||||
* Authors:
|
||||
* Robert Bragg <robert@linux.intel.com>
|
||||
*/
|
||||
|
||||
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
||||
#error "Only <cogl/cogl.h> can be included directly."
|
||||
#endif
|
||||
|
||||
#ifndef __COGL_PRIMITIVE_H__
|
||||
#define __COGL_PRIMITIVE_H__
|
||||
|
||||
#include <cogl/cogl-vertex-buffer.h> /* for CoglVerticesMode */
|
||||
#include <cogl/cogl-vertex-attribute.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
/**
|
||||
* SECTION:cogl-primitive
|
||||
* @short_description: Functions for creating, manipulating and drawing
|
||||
* primitive
|
||||
*
|
||||
* FIXME
|
||||
*/
|
||||
|
||||
typedef struct _CoglPrimitive CoglPrimitive;
|
||||
|
||||
/**
|
||||
* CoglV2Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v2_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y;
|
||||
} CoglV2Vertex;
|
||||
|
||||
/**
|
||||
* CoglV3Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @z: The z component of a position attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v3_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y, z;
|
||||
} CoglV3Vertex;
|
||||
|
||||
/**
|
||||
* CoglV2C4Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @r: The red component of a color attribute
|
||||
* @b: The green component of a color attribute
|
||||
* @g: The blue component of a color attribute
|
||||
* @a: The alpha component of a color attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v2c4_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y;
|
||||
guint8 r, g, b, a;
|
||||
} CoglV2C4Vertex;
|
||||
|
||||
/**
|
||||
* CoglV3C4Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @z: The z component of a position attribute
|
||||
* @r: The red component of a color attribute
|
||||
* @b: The green component of a color attribute
|
||||
* @g: The blue component of a color attribute
|
||||
* @a: The alpha component of a color attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v3c4_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y, z;
|
||||
guint8 r, g, b, a;
|
||||
} CoglV3C4Vertex;
|
||||
|
||||
/**
|
||||
* CoglV2T2Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @s: The s component of a texture coordinate attribute
|
||||
* @t: The t component of a texture coordinate attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v2t2_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y;
|
||||
float s, t;
|
||||
} CoglV2T2Vertex;
|
||||
|
||||
/**
|
||||
* CoglV3T2Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @z: The z component of a position attribute
|
||||
* @s: The s component of a texture coordinate attribute
|
||||
* @t: The t component of a texture coordinate attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v3t2_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y, z;
|
||||
float s, t;
|
||||
} CoglV3T2Vertex;
|
||||
|
||||
|
||||
/**
|
||||
* CoglV2T2C4Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @s: The s component of a texture coordinate attribute
|
||||
* @t: The t component of a texture coordinate attribute
|
||||
* @r: The red component of a color attribute
|
||||
* @b: The green component of a color attribute
|
||||
* @g: The blue component of a color attribute
|
||||
* @a: The alpha component of a color attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v3t2c4_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y;
|
||||
float s, t;
|
||||
guint8 r, g, b, a;
|
||||
} CoglV2T2C4Vertex;
|
||||
|
||||
/**
|
||||
* CoglV3T2C4Vertex:
|
||||
* @x: The x component of a position attribute
|
||||
* @y: The y component of a position attribute
|
||||
* @z: The z component of a position attribute
|
||||
* @s: The s component of a texture coordinate attribute
|
||||
* @t: The t component of a texture coordinate attribute
|
||||
* @r: The red component of a color attribute
|
||||
* @b: The green component of a color attribute
|
||||
* @g: The blue component of a color attribute
|
||||
* @a: The alpha component of a color attribute
|
||||
*
|
||||
* A convenience vertex definition that can be used with
|
||||
* cogl_primitive_new_with_v3t2c4_attributes().
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
float x, y, z;
|
||||
float s, t;
|
||||
guint8 r, g, b, a;
|
||||
} CoglV3T2C4Vertex;
|
||||
|
||||
/**
|
||||
* cogl_primitive_new:
|
||||
* @mode: A #CoglVerticesMode defining how to draw the vertices
|
||||
* @n_vertices: The number of vertices to process when drawing
|
||||
* @Varargs: A %NULL terminated list of attributes
|
||||
*
|
||||
* Combines a set of #CoglVertexAttribute<!-- -->s with a specific draw @mode
|
||||
* and defines a vertex count so a #CoglPrimitive object can be retained and
|
||||
* drawn later with no addition information required.
|
||||
*
|
||||
* Returns: A newly allocated #CoglPrimitive object
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
CoglPrimitive *
|
||||
cogl_primitive_new (CoglVerticesMode mode,
|
||||
int n_vertices,
|
||||
...);
|
||||
|
||||
/* XXX: how about just: cogl_primitive_new_with_attributes () ? */
|
||||
CoglPrimitive *
|
||||
cogl_primitive_new_with_attributes_array (CoglVerticesMode mode,
|
||||
int n_vertices,
|
||||
CoglVertexAttribute **attributes);
|
||||
|
||||
int
|
||||
cogl_primitive_get_first_vertex (CoglPrimitive *primitive);
|
||||
|
||||
void
|
||||
cogl_primitive_set_first_vertex (CoglPrimitive *primitive,
|
||||
int first_vertex);
|
||||
|
||||
int
|
||||
cogl_primitive_get_n_vertices (CoglPrimitive *primitive);
|
||||
|
||||
void
|
||||
cogl_primitive_set_n_vertices (CoglPrimitive *primitive,
|
||||
int n_vertices);
|
||||
|
||||
CoglVerticesMode
|
||||
cogl_primitive_get_mode (CoglPrimitive *primitive);
|
||||
|
||||
void
|
||||
cogl_primitive_set_mode (CoglPrimitive *primitive,
|
||||
CoglVerticesMode mode);
|
||||
|
||||
/**
|
||||
* cogl_primitive_set_attributes:
|
||||
* @primitive: A #CoglPrimitive object
|
||||
* @attributes: A %NULL terminated array of #CoglVertexAttribute
|
||||
* pointers
|
||||
*
|
||||
* Replaces all the attributes of the given #CoglPrimitive object.
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
void
|
||||
cogl_primitive_set_attributes (CoglPrimitive *primitive,
|
||||
CoglVertexAttribute **attributes);
|
||||
|
||||
|
||||
void
|
||||
cogl_primitive_set_indices (CoglPrimitive *primitive,
|
||||
CoglIndices *indices);
|
||||
|
||||
/**
|
||||
* cogl_primitive_draw:
|
||||
* @primitive: A #CoglPrimitive object
|
||||
*
|
||||
* Draw the given @primitive with the current source material.
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
void
|
||||
cogl_primitive_draw (CoglPrimitive *primitive);
|
||||
|
||||
/**
|
||||
* cogl_is_primitive:
|
||||
* @object: A #CoglObject
|
||||
*
|
||||
* Gets whether the given object references a #CoglPrimitive.
|
||||
*
|
||||
* Returns: %TRUE if the handle references a #CoglPrimitive,
|
||||
* %FALSE otherwise
|
||||
*
|
||||
* Since: 1.6
|
||||
* Stability: Unstable
|
||||
*/
|
||||
gboolean
|
||||
cogl_is_primitive (void *object);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __COGL_PRIMITIVE_H__ */
|
||||
|
||||
@ -58,6 +58,7 @@
|
||||
#include <cogl/cogl-vertex-array.h>
|
||||
#include <cogl/cogl-indices.h>
|
||||
#include <cogl/cogl-vertex-attribute.h>
|
||||
#include <cogl/cogl-primitive.h>
|
||||
#endif
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
Loading…
Reference in New Issue
Block a user