1 #ifndef EGLSURFACE_INCLUDED
2 #define EGLSURFACE_INCLUDED
5 #include "egltypedefs.h"
6 #include "egldisplay.h"
10 * "Base" class for device driver surfaces.
14 /* A surface is a display resource */
15 _EGLResource Resource
;
17 /* The context that is currently bound to the surface */
18 _EGLContext
*CurrentContext
;
22 EGLint Type
; /* one of EGL_WINDOW_BIT, EGL_PIXMAP_BIT or EGL_PBUFFER_BIT */
24 /* attributes set by attribute list */
26 EGLenum TextureFormat
;
27 EGLenum TextureTarget
;
28 EGLBoolean MipmapTexture
;
29 EGLBoolean LargestPbuffer
;
31 EGLenum VGAlphaFormat
;
34 /* attributes set by eglSurfaceAttrib */
36 EGLenum MultisampleResolve
;
39 EGLint HorizontalResolution
, VerticalResolution
;
44 /* True if the surface is bound to an OpenGL ES texture */
45 EGLBoolean BoundToTexture
;
50 _eglInitSurface(_EGLSurface
*surf
, _EGLDisplay
*dpy
, EGLint type
,
51 _EGLConfig
*config
, const EGLint
*attrib_list
);
55 _eglQuerySurface(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
, EGLint attribute
, EGLint
*value
);
59 _eglSurfaceAttrib(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
, EGLint attribute
, EGLint value
);
62 PUBLIC
extern EGLBoolean
63 _eglBindTexImage(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
, EGLint buffer
);
67 _eglSwapInterval(_EGLDriver
*drv
, _EGLDisplay
*dpy
, _EGLSurface
*surf
, EGLint interval
);
71 * Return true if there is a context bound to the surface.
73 * The binding is considered a reference to the surface. Drivers should not
74 * destroy a surface when it is bound.
76 static INLINE EGLBoolean
77 _eglIsSurfaceBound(_EGLSurface
*surf
)
79 return (surf
->CurrentContext
!= NULL
);
84 * Link a surface to its display and return the handle of the link.
85 * The handle can be passed to client directly.
87 static INLINE EGLSurface
88 _eglLinkSurface(_EGLSurface
*surf
)
90 _eglLinkResource(&surf
->Resource
, _EGL_RESOURCE_SURFACE
);
91 return (EGLSurface
) surf
;
96 * Unlink a linked surface from its display.
97 * Accessing an unlinked surface should generate EGL_BAD_SURFACE error.
100 _eglUnlinkSurface(_EGLSurface
*surf
)
102 _eglUnlinkResource(&surf
->Resource
, _EGL_RESOURCE_SURFACE
);
107 * Lookup a handle to find the linked surface.
108 * Return NULL if the handle has no corresponding linked surface.
110 static INLINE _EGLSurface
*
111 _eglLookupSurface(EGLSurface surface
, _EGLDisplay
*dpy
)
113 _EGLSurface
*surf
= (_EGLSurface
*) surface
;
114 if (!dpy
|| !_eglCheckResource((void *) surf
, _EGL_RESOURCE_SURFACE
, dpy
))
121 * Return the handle of a linked surface, or EGL_NO_SURFACE.
123 static INLINE EGLSurface
124 _eglGetSurfaceHandle(_EGLSurface
*surf
)
126 _EGLResource
*res
= (_EGLResource
*) surf
;
127 return (res
&& _eglIsResourceLinked(res
)) ?
128 (EGLSurface
) surf
: EGL_NO_SURFACE
;
133 * Return true if the surface is linked to a display.
135 * The link is considered a reference to the surface (the display is owning the
136 * surface). Drivers should not destroy a surface when it is linked.
138 static INLINE EGLBoolean
139 _eglIsSurfaceLinked(_EGLSurface
*surf
)
141 _EGLResource
*res
= (_EGLResource
*) surf
;
142 return (res
&& _eglIsResourceLinked(res
));
146 #endif /* EGLSURFACE_INCLUDED */