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#ifndef EGLIMAGE_INCLUDED
#define EGLIMAGE_INCLUDED
#include "egltypedefs.h"
#include "egldisplay.h"
/**
* "Base" class for device driver images.
*/
struct _egl_image
{
/* An image is a display resource */
_EGLResource Resource;
EGLBoolean Preserved;
EGLint GLTextureLevel;
EGLint GLTextureZOffset;
};
PUBLIC EGLBoolean
_eglInitImage(_EGLImage *img, _EGLDisplay *dpy, const EGLint *attrib_list);
extern _EGLImage *
_eglCreateImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
EGLenum target, EGLClientBuffer buffer, const EGLint *attr_list);
extern EGLBoolean
_eglDestroyImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *image);
/**
* Link an image to a display and return the handle of the link.
* The handle can be passed to client directly.
*/
static INLINE EGLImageKHR
_eglLinkImage(_EGLImage *img, _EGLDisplay *dpy)
{
_eglLinkResource(&img->Resource, _EGL_RESOURCE_IMAGE, dpy);
return (EGLImageKHR) img;
}
/**
* Unlink a linked image from its display.
* Accessing an unlinked image should generate EGL_BAD_PARAMETER error.
*/
static INLINE void
_eglUnlinkImage(_EGLImage *img)
{
_eglUnlinkResource(&img->Resource, _EGL_RESOURCE_IMAGE);
}
/**
* Lookup a handle to find the linked image.
* Return NULL if the handle has no corresponding linked image.
*/
static INLINE _EGLImage *
_eglLookupImage(EGLImageKHR image, _EGLDisplay *dpy)
{
_EGLImage *img = (_EGLImage *) image;
if (!dpy || !_eglCheckResource((void *) img, _EGL_RESOURCE_IMAGE, dpy))
img = NULL;
return img;
}
/**
* Return the handle of a linked image, or EGL_NO_IMAGE_KHR.
*/
static INLINE EGLImageKHR
_eglGetImageHandle(_EGLImage *img)
{
_EGLResource *res = (_EGLResource *) img;
return (res && _eglIsResourceLinked(res)) ?
(EGLImageKHR) img : EGL_NO_IMAGE_KHR;
}
/**
* Return true if the image is linked to a display.
*/
static INLINE EGLBoolean
_eglIsImageLinked(_EGLImage *img)
{
_EGLResource *res = (_EGLResource *) img;
return (res && _eglIsResourceLinked(res));
}
#endif /* EGLIMAGE_INCLUDED */
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