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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009,2010 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_INTERNAL_H
#define __COGL_INTERNAL_H
#include "cogl.h"
#include "cogl-matrix-stack.h"
#include "cogl-bitmask.h"
#ifdef COGL_HAS_XLIB_SUPPORT
#include <X11/Xlib.h>
#endif
typedef enum
{
COGL_FRONT_WINDING_CLOCKWISE,
COGL_FRONT_WINDING_COUNTER_CLOCKWISE
} CoglFrontWinding;
#ifdef HAVE_COGL_GLES2
typedef enum {
COGL_BOXED_NONE,
COGL_BOXED_INT,
COGL_BOXED_FLOAT,
COGL_BOXED_MATRIX
} CoglBoxedType;
typedef struct _CoglBoxedValue
{
CoglBoxedType type;
int size, count;
gboolean transpose;
union {
float float_value[4];
int int_value[4];
float matrix[16];
float *float_array;
int *int_array;
gpointer array;
} v;
} CoglBoxedValue;
#endif
#ifdef COGL_GL_DEBUG
const char *
cogl_gl_error_to_string (GLenum error_code);
#define GE(x) G_STMT_START { \
GLenum __err; \
(x); \
while ((__err = glGetError ()) != GL_NO_ERROR) \
{ \
g_warning ("%s: GL error (%d): %s\n", \
G_STRLOC, \
__err, \
cogl_gl_error_to_string (__err)); \
} } G_STMT_END
#define GE_RET(ret, x) G_STMT_START { \
GLenum __err; \
ret = (x); \
while ((__err = glGetError ()) != GL_NO_ERROR) \
{ \
g_warning ("%s: GL error (%d): %s\n", \
G_STRLOC, \
__err, \
cogl_gl_error_to_string (__err)); \
} } G_STMT_END
#else /* !COGL_GL_DEBUG */
#define GE(x) (x)
#define GE_RET(ret, x) (ret = (x))
#endif /* COGL_GL_DEBUG */
#define COGL_ENABLE_ALPHA_TEST (1<<1)
#define COGL_ENABLE_VERTEX_ARRAY (1<<2)
#define COGL_ENABLE_COLOR_ARRAY (1<<3)
#define COGL_ENABLE_BACKFACE_CULLING (1<<4)
void
_cogl_features_init (void);
int
_cogl_get_format_bpp (CoglPixelFormat format);
void
_cogl_enable (unsigned long flags);
unsigned long
_cogl_get_enable (void);
void
_cogl_flush_face_winding (void);
/* Disables the texcoord arrays that don't have a corresponding bit
set in the mask and sets ctx->texcoord_arrays_enabled to mask. Note
that it doesn't enable any extra texcoord arrays */
void
_cogl_disable_other_texcoord_arrays (const CoglBitmask *mask);
void
_cogl_transform_point (const CoglMatrix *matrix_mv,
const CoglMatrix *matrix_p,
const float *viewport,
float *x,
float *y);
#ifdef COGL_HAS_XLIB_SUPPORT
/*
* CoglX11FilterReturn:
* @COGL_XLIB_FILTER_CONTINUE: The event was not handled, continues the
* processing
* @COGL_XLIB_FILTER_REMOVE: Remove the event, stops the processing
*
* Return values for the #CoglX11FilterFunc function.
*/
typedef enum _CoglXlibFilterReturn {
COGL_XLIB_FILTER_CONTINUE,
COGL_XLIB_FILTER_REMOVE
} CoglXlibFilterReturn;
/*
* CoglXlibFilterFunc:
*
* A callback function that can be registered with
* _cogl_xlib_add_filter. The function should return
* %COGL_XLIB_FILTER_REMOVE if it wants to prevent further processing
* or %COGL_XLIB_FILTER_CONTINUE otherwise.
*/
typedef CoglXlibFilterReturn (* CoglXlibFilterFunc) (XEvent *xevent,
gpointer data);
/*
* cogl_xlib_handle_event:
* @xevent: pointer to XEvent structure
*
* This function processes a single X event; it can be used to hook
* into external X event retrieval (for example that done by Clutter
* or GDK).
*
* Return value: #CoglXlibFilterReturn. %COGL_XLIB_FILTER_REMOVE
* indicates that Cogl has internally handled the event and the
* caller should do no further processing. %COGL_XLIB_FILTER_CONTINUE
* indicates that Cogl is either not interested in the event,
* or has used the event to update internal state without taking
* any exclusive action.
*/
CoglXlibFilterReturn
_cogl_xlib_handle_event (XEvent *xevent);
/*
* _cogl_xlib_get_display:
*
* Return value: the Xlib display that will be used by the Xlib winsys
* backend. The display needs to be set with _cogl_xlib_set_display()
* before this function is called.
*/
Display *
_cogl_xlib_get_display (void);
/*
* cogl_xlib_set_display:
*
* Sets the Xlib display that Cogl will use for the Xlib winsys
* backend. This function should eventually go away when Cogl gains a
* more complete winsys abstraction.
*/
void
_cogl_xlib_set_display (Display *display);
/*
* _cogl_xlib_add_filter:
*
* Adds a callback function that will receive all X11 events. The
* function can stop further processing of the event by return
* %COGL_XLIB_FILTER_REMOVE.
*/
void
_cogl_xlib_add_filter (CoglXlibFilterFunc func,
gpointer data);
/*
* _cogl_xlib_remove_filter:
*
* Removes a callback that was previously added with
* _cogl_xlib_add_filter().
*/
void
_cogl_xlib_remove_filter (CoglXlibFilterFunc func,
gpointer data);
#endif /* COGL_HAS_XLIB_SUPPORT */
typedef enum _CoglFeatureFlagsPrivate
{
COGL_FEATURE_PRIVATE_ARB_FP = (1 << 0)
} CoglFeatureFlagsPrivate;
gboolean
_cogl_features_available_private (CoglFeatureFlagsPrivate features);
#endif /* __COGL_INTERNAL_H */
|
