1 files changed, 93 insertions, 0 deletions
diff --git a/src/egl/main/eglimage.h b/src/egl/main/eglimage.h
new file mode 100644
index 0000000000..3a96028e3d
--- /dev/null
+++ b/src/egl/main/eglimage.h
@@ -0,0 +1,93 @@
+#ifndef EGLIMAGE_INCLUDED
+#define EGLIMAGE_INCLUDED
+
+
+#include "egltypedefs.h"
+
+
+/**
+ * "Base" class for device driver images.
+ */
+struct _egl_image
+{
+   /* Client data that client APIs and the driver agree on */
+   void *ClientData;
+
+   /* Managed by EGLDisplay for linking */
+   _EGLDisplay *Display;
+   _EGLImage *Next;
+
+   EGLBoolean Preserved;
+};
+
+
+extern EGLBoolean
+_eglInitImage(_EGLDriver *drv, _EGLImage *img, 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);
+
+
+extern EGLImageKHR
+_eglLinkImage(_EGLImage *img, _EGLDisplay *dpy);
+
+
+extern void
+_eglUnlinkImage(_EGLImage *img);
+
+
+#ifndef _EGL_SKIP_HANDLE_CHECK
+
+
+extern EGLBoolean
+_eglCheckImageHandle(EGLImageKHR img, _EGLDisplay *dpy);
+
+
+#else
+
+
+/**
+ * Perform a quick check on the handle.
+ */
+static INLINE EGLBoolean
+_eglCheckImageHandle(EGLImageKHR img, _EGLDisplay *dpy)
+{
+   _EGLImage *i = (_EGLImage *) img;
+   return (dpy && i && i->Display == dpy);
+}
+
+
+#endif
+
+
+/**
+ * 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 (!_eglCheckImageHandle(img, dpy))
+      img = NULL;
+   return img;
+}
+
+
+/**
+ * Return the handle of a linked image.
+ */
+static INLINE EGLImageKHR
+_eglGetImageHandle(_EGLImage *img)
+{
+   return (EGLImageKHR) ((img && img->Display) ? img : EGL_NO_IMAGE_KHR);
+}
+
+
+#endif /* EGLIMAGE_INCLUDED */