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#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
_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint *value);
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
_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint interval);
/**
* 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 */
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