mirror of
https://github.com/brl/mutter.git
synced 2024-12-24 12:02:04 +00:00
982f1b4bd0
This adds an optional data argument for cogl_vertex_array_new() since it seems that mostly every case where we use this API we follow up with a cogl_buffer_set_data() matching the size of the new array. This simplifies all those cases and whenever we want to delay uploading of data then NULL can simply be passed.
571 lines
17 KiB
C
571 lines
17 KiB
C
/*
|
|
* 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 "cogl-vertex-attribute-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 *));
|
|
primitive->immutable_ref = 0;
|
|
|
|
for (i = 0; attributes[i]; i++)
|
|
{
|
|
CoglVertexAttribute *attribute = attributes[i];
|
|
cogl_object_ref (attribute);
|
|
|
|
g_return_val_if_fail (cogl_is_vertex_attribute (attribute), NULL);
|
|
|
|
g_array_append_val (primitive->attributes, attribute);
|
|
}
|
|
|
|
return _cogl_primitive_object_new (primitive);
|
|
}
|
|
|
|
/* This is just an internal convenience wrapper around
|
|
new_with_attributes that also unrefs the attributes. It is just
|
|
used for the builtin struct constructors */
|
|
static CoglPrimitive *
|
|
_cogl_primitive_new_with_attributes_array_unref
|
|
(CoglVerticesMode mode,
|
|
int n_vertices,
|
|
CoglVertexAttribute **attributes)
|
|
{
|
|
CoglPrimitive *primitive;
|
|
int i;
|
|
|
|
primitive = cogl_primitive_new_with_attributes_array (mode,
|
|
n_vertices,
|
|
attributes);
|
|
|
|
for (i = 0; attributes[i]; i++)
|
|
cogl_object_unref (attributes[i]);
|
|
|
|
return 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);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p2 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP2Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP2Vertex), data);
|
|
CoglVertexAttribute *attributes[2];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP2Vertex),
|
|
offsetof (CoglP2Vertex, x),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p3 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP3Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP3Vertex), data);
|
|
CoglVertexAttribute *attributes[2];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP3Vertex),
|
|
offsetof (CoglP3Vertex, x),
|
|
3,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p2c4 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP2C4Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP2C4Vertex), data);
|
|
CoglVertexAttribute *attributes[3];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP2C4Vertex),
|
|
offsetof (CoglP2C4Vertex, x),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_color_in",
|
|
sizeof (CoglP2C4Vertex),
|
|
offsetof (CoglP2C4Vertex, r),
|
|
4,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
|
|
attributes[2] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p3c4 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP3C4Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP3C4Vertex), data);
|
|
CoglVertexAttribute *attributes[3];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP3C4Vertex),
|
|
offsetof (CoglP3C4Vertex, x),
|
|
3,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_color_in",
|
|
sizeof (CoglP3C4Vertex),
|
|
offsetof (CoglP3C4Vertex, r),
|
|
4,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
|
|
attributes[2] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p2t2 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP2T2Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP2T2Vertex), data);
|
|
CoglVertexAttribute *attributes[3];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP2T2Vertex),
|
|
offsetof (CoglP2T2Vertex, x),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_tex_coord0_in",
|
|
sizeof (CoglP2T2Vertex),
|
|
offsetof (CoglP2T2Vertex, s),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[2] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p3t2 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP3T2Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP3T2Vertex), data);
|
|
CoglVertexAttribute *attributes[3];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP3T2Vertex),
|
|
offsetof (CoglP3T2Vertex, x),
|
|
3,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_tex_coord0_in",
|
|
sizeof (CoglP3T2Vertex),
|
|
offsetof (CoglP3T2Vertex, s),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[2] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p2t2c4 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP2T2C4Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP2T2C4Vertex), data);
|
|
CoglVertexAttribute *attributes[4];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP2T2C4Vertex),
|
|
offsetof (CoglP2T2C4Vertex, x),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_tex_coord0_in",
|
|
sizeof (CoglP2T2C4Vertex),
|
|
offsetof (CoglP2T2C4Vertex, s),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[2] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_color_in",
|
|
sizeof (CoglP2T2C4Vertex),
|
|
offsetof (CoglP2T2C4Vertex, r),
|
|
4,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
|
|
attributes[3] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (mode, n_vertices,
|
|
attributes);
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_new_p3t2c4 (CoglVerticesMode mode,
|
|
int n_vertices,
|
|
const CoglP3T2C4Vertex *data)
|
|
{
|
|
CoglVertexArray *array =
|
|
cogl_vertex_array_new (n_vertices * sizeof (CoglP3T2C4Vertex), data);
|
|
CoglVertexAttribute *attributes[4];
|
|
|
|
attributes[0] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_position_in",
|
|
sizeof (CoglP3T2C4Vertex),
|
|
offsetof (CoglP3T2C4Vertex, x),
|
|
3,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[1] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_tex_coord0_in",
|
|
sizeof (CoglP3T2C4Vertex),
|
|
offsetof (CoglP3T2C4Vertex, s),
|
|
2,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_FLOAT);
|
|
attributes[2] =
|
|
cogl_vertex_attribute_new (array,
|
|
"cogl_color_in",
|
|
sizeof (CoglP3T2C4Vertex),
|
|
offsetof (CoglP3T2C4Vertex, r),
|
|
4,
|
|
COGL_VERTEX_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
|
|
attributes[3] = NULL;
|
|
|
|
cogl_object_unref (array);
|
|
|
|
return _cogl_primitive_new_with_attributes_array_unref (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);
|
|
}
|
|
|
|
static void
|
|
warn_about_midscene_changes (void)
|
|
{
|
|
static gboolean seen = FALSE;
|
|
if (!seen)
|
|
{
|
|
g_warning ("Mid-scene modification of buffers has "
|
|
"undefined results\n");
|
|
seen = TRUE;
|
|
}
|
|
}
|
|
|
|
void
|
|
cogl_primitive_set_attributes (CoglPrimitive *primitive,
|
|
CoglVertexAttribute **attributes)
|
|
{
|
|
int i;
|
|
|
|
g_return_if_fail (cogl_is_primitive (primitive));
|
|
|
|
if (G_UNLIKELY (primitive->immutable_ref))
|
|
{
|
|
warn_about_midscene_changes ();
|
|
return;
|
|
}
|
|
|
|
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));
|
|
|
|
if (G_UNLIKELY (primitive->immutable_ref))
|
|
{
|
|
warn_about_midscene_changes ();
|
|
return;
|
|
}
|
|
|
|
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));
|
|
|
|
if (G_UNLIKELY (primitive->immutable_ref))
|
|
{
|
|
warn_about_midscene_changes ();
|
|
return;
|
|
}
|
|
|
|
primitive->mode = mode;
|
|
}
|
|
|
|
void
|
|
cogl_primitive_set_indices (CoglPrimitive *primitive,
|
|
CoglIndices *indices)
|
|
{
|
|
g_return_if_fail (cogl_is_primitive (primitive));
|
|
|
|
if (G_UNLIKELY (primitive->immutable_ref))
|
|
{
|
|
warn_about_midscene_changes ();
|
|
return;
|
|
}
|
|
|
|
if (indices)
|
|
cogl_object_ref (indices);
|
|
if (primitive->indices)
|
|
cogl_object_unref (primitive->indices);
|
|
primitive->indices = indices;
|
|
}
|
|
|
|
CoglPrimitive *
|
|
_cogl_primitive_immutable_ref (CoglPrimitive *primitive)
|
|
{
|
|
int i;
|
|
|
|
g_return_val_if_fail (cogl_is_primitive (primitive), NULL);
|
|
|
|
primitive->immutable_ref++;
|
|
|
|
for (i = 0; i < primitive->attributes->len; i++)
|
|
{
|
|
CoglVertexAttribute *attribute =
|
|
g_array_index (primitive->attributes, CoglVertexAttribute *, i);
|
|
_cogl_vertex_attribute_immutable_ref (attribute);
|
|
}
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void
|
|
_cogl_primitive_immutable_unref (CoglPrimitive *primitive)
|
|
{
|
|
int i;
|
|
|
|
g_return_if_fail (cogl_is_primitive (primitive));
|
|
g_return_if_fail (primitive->immutable_ref > 0);
|
|
|
|
primitive->immutable_ref--;
|
|
|
|
for (i = 0; i < primitive->attributes->len; i++)
|
|
{
|
|
CoglVertexAttribute *attribute =
|
|
g_array_index (primitive->attributes, CoglVertexAttribute *, i);
|
|
_cogl_vertex_attribute_immutable_unref (attribute);
|
|
}
|
|
}
|
|
|
|
/* 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);
|
|
}
|
|
|