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#include <assert.h>
#include "eglimage.h"
#include "egldisplay.h"
EGLBoolean
_eglInitImage(_EGLDriver *drv, _EGLImage *img, const EGLint *attrib_list)
{
EGLint i;
img->Preserved = EGL_FALSE;
for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) {
switch (attrib_list[i]) {
case EGL_IMAGE_PRESERVED_KHR:
i++;
img->Preserved = attrib_list[i];
break;
default:
/* not an error */
break;
}
}
return EGL_TRUE;
}
_EGLImage *
_eglCreateImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
EGLenum target, EGLClientBuffer buffer, const EGLint *attr_list)
{
/* driver should override this function */
return NULL;
}
EGLBoolean
_eglDestroyImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *image)
{
/* driver should override this function */
return EGL_FALSE;
}
EGLImageKHR
_eglLinkImage(_EGLImage *img, _EGLDisplay *dpy)
{
img->Display = dpy;
img->Next = dpy->ImageList;
dpy->ImageList = img;
return (EGLImageKHR) img;
}
void
_eglUnlinkImage(_EGLImage *img)
{
_EGLImage *prev;
prev = img->Display->ImageList;
if (prev != img) {
while (prev) {
if (prev->Next == img)
break;
prev = prev->Next;
}
assert(prev);
prev->Next = img->Next;
}
else {
img->Display->ImageList = img->Next;
}
img->Next = NULL;
img->Display = NULL;
}
#ifndef _EGL_SKIP_HANDLE_CHECK
/**
* Return EGL_TRUE if the given handle is a valid handle to an image.
*/
EGLBoolean
_eglCheckImageHandle(EGLImageKHR img, _EGLDisplay *dpy)
{
_EGLImage *cur = NULL;
if (dpy)
cur = dpy->ImageList;
while (cur) {
if (cur == (_EGLImage *) img) {
assert(cur->Display == dpy);
break;
}
cur = cur->Next;
}
return (cur != NULL);
}
#endif /* _EGL_SKIP_HANDLE_CHECK */
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