blob: fd2e1deab50fee2788fd8854f3c059e35d4eeed4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* 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/>.
*
*
*/
#ifndef __COGL_PATH_PRIVATE_H
#define __COGL_PATH_PRIVATE_H
#include "cogl-object.h"
#include "cogl-attribute-private.h"
typedef struct _floatVec2
{
float x;
float y;
} floatVec2;
typedef struct _CoglPathNode
{
float x;
float y;
unsigned int path_size;
} CoglPathNode;
typedef struct _CoglBezQuad
{
floatVec2 p1;
floatVec2 p2;
floatVec2 p3;
} CoglBezQuad;
typedef struct _CoglBezCubic
{
floatVec2 p1;
floatVec2 p2;
floatVec2 p3;
floatVec2 p4;
} CoglBezCubic;
typedef struct _CoglPathData CoglPathData;
struct _CoglPath
{
CoglObject _parent;
CoglPathData *data;
};
#define COGL_PATH_N_ATTRIBUTES 2
struct _CoglPathData
{
unsigned int ref_count;
CoglPathFillRule fill_rule;
GArray *path_nodes;
floatVec2 path_start;
floatVec2 path_pen;
unsigned int last_path;
floatVec2 path_nodes_min;
floatVec2 path_nodes_max;
CoglAttributeBuffer *fill_attribute_buffer;
CoglIndices *fill_vbo_indices;
unsigned int fill_vbo_n_indices;
CoglAttribute *fill_attributes[COGL_PATH_N_ATTRIBUTES + 1];
CoglAttributeBuffer *stroke_attribute_buffer;
CoglAttribute **stroke_attributes;
unsigned int stroke_n_attributes;
/* This is used as an optimisation for when the path contains a
single contour specified using cogl2_path_rectangle. Cogl is more
optimised to handle rectangles than paths so we can detect this
case and divert to the journal or a rectangle clip. If it is TRUE
then the entire path can be described by calling
_cogl_path_get_bounds */
gboolean is_rectangle;
};
void
_cogl_add_path_to_stencil_buffer (CoglPath *path,
gboolean merge,
gboolean need_clear);
void
_cogl_path_get_bounds (CoglPath *path,
float *min_x,
float *min_y,
float *max_x,
float *max_y);
gboolean
_cogl_path_is_rectangle (CoglPath *path);
void
_cogl_path_fill_nodes (CoglPath *path, CoglDrawFlags flags);
#endif /* __COGL_PATH_PRIVATE_H */
|
