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
|
#ifndef EGLSURFACE_INCLUDED
#define EGLSURFACE_INCLUDED
#include "egltypedefs.h"
#include "egldisplay.h"
/**
* "Base" class for device driver surfaces.
*/
struct _egl_surface
{
/* A surface is a display resource */
_EGLResource Resource;
/* The context that is currently bound to the surface */
_EGLContext *CurrentContext;
_EGLConfig *Config;
EGLint Type; /* one of EGL_WINDOW_BIT, EGL_PIXMAP_BIT or EGL_PBUFFER_BIT */
/* attributes set by attribute list */
EGLint Width, Height;
EGLenum TextureFormat;
EGLenum TextureTarget;
EGLBoolean MipmapTexture;
EGLBoolean LargestPbuffer;
EGLenum RenderBuffer;
EGLenum VGAlphaFormat;
EGLenum VGColorspace;
/* attributes set by eglSurfaceAttrib */
EGLint MipmapLevel;
EGLenum MultisampleResolve;
EGLenum SwapBehavior;
EGLint HorizontalResolution, VerticalResolution;
EGLint AspectRatio;
EGLint SwapInterval;
/* True if the surface is bound to an OpenGL ES texture */
EGLBoolean BoundToTexture;
};
PUBLIC EGLBoolean
_eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type,
_EGLConfig *config, const EGLint *attrib_list);
extern EGLBoolean
_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf);
extern EGLBoolean
_eglCopyBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLNativePixmapType target);
extern EGLBoolean
_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint *value);
extern _EGLSurface *
_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLNativeWindowType window, const EGLint *attrib_list);
extern _EGLSurface *
_eglCreatePixmapSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLNativePixmapType pixmap, const EGLint *attrib_list);
extern _EGLSurface *
_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list);
extern EGLBoolean
_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf);
extern EGLBoolean
_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint value);
PUBLIC extern EGLBoolean
_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer);
extern EGLBoolean
_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer);
extern EGLBoolean
_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint interval);
#ifdef EGL_VERSION_1_2
extern _EGLSurface *
_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, _EGLDisplay *dpy,
EGLenum buftype, EGLClientBuffer buffer,
_EGLConfig *conf, const EGLint *attrib_list);
#endif /* EGL_VERSION_1_2 */
/**
* Return true if there is a context bound to the surface.
*
* The binding is considered a reference to the surface. Drivers should not
* destroy a surface when it is bound.
*/
static INLINE EGLBoolean
_eglIsSurfaceBound(_EGLSurface *surf)
{
return (surf->CurrentContext != NULL);
}
/**
* Link a surface to a display and return the handle of the link.
* The handle can be passed to client directly.
*/
static INLINE EGLSurface
_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy)
{
_eglLinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE, dpy);
return (EGLSurface) surf;
}
/**
* Unlink a linked surface from its display.
* Accessing an unlinked surface should generate EGL_BAD_SURFACE error.
*/
static INLINE void
_eglUnlinkSurface(_EGLSurface *surf)
{
_eglUnlinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE);
}
/**
* Lookup a handle to find the linked surface.
* Return NULL if the handle has no corresponding linked surface.
*/
static INLINE _EGLSurface *
_eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy)
{
_EGLSurface *surf = (_EGLSurface *) surface;
if (!dpy || !_eglCheckResource((void *) surf, _EGL_RESOURCE_SURFACE, dpy))
surf = NULL;
return surf;
}
/**
* Return the handle of a linked surface, or EGL_NO_SURFACE.
*/
static INLINE EGLSurface
_eglGetSurfaceHandle(_EGLSurface *surf)
{
_EGLResource *res = (_EGLResource *) surf;
return (res && _eglIsResourceLinked(res)) ?
(EGLSurface) surf : EGL_NO_SURFACE;
}
/**
* Return true if the surface is linked to a display.
*
* The link is considered a reference to the surface (the display is owning the
* surface). Drivers should not destroy a surface when it is linked.
*/
static INLINE EGLBoolean
_eglIsSurfaceLinked(_EGLSurface *surf)
{
_EGLResource *res = (_EGLResource *) surf;
return (res && _eglIsResourceLinked(res));
}
#endif /* EGLSURFACE_INCLUDED */
|
