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/*

 * Copyright © 2010 Intel Corporation

 * Copyright © 2011 Apple Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Soft-

 * ware"), to deal in the Software without restriction, including without

 * limitation the rights to use, copy, modify, merge, publish, distribute,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, provided that the above copyright

 * notice(s) and this permission notice appear in all copies of the Soft-

 * ware and that both the above copyright notice(s) and this permission

 * notice appear in supporting documentation.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-

 * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY

 * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN

 * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-

 * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-

 * MANCE OF THIS SOFTWARE.

 *

 * Except as contained in this notice, the name of a copyright holder shall

 * not be used in advertising or otherwise to promote the sale, use or

 * other dealings in this Software without prior written authorization of

 * the copyright holder.

 *

 * Authors:

 *   Kristian Høgsberg (krh@bitplanet.net)

 */

#if defined(GLX_USE_APPLEGL)

#include 

#include 

#include "glxclient.h"

#include "apple_glx_context.h"

#include "apple_glx.h"

#include "apple_cgl.h"

#include "glx_error.h"

static void

applegl_destroy_context(struct glx_context *gc)

{

   apple_glx_destroy_context(&gc->driContext, gc->psc->dpy);

}

static int

applegl_bind_context(struct glx_context *gc, struct glx_context *old,

		     GLXDrawable draw, GLXDrawable read)

{

   Display *dpy = gc->psc->dpy;

   bool error = apple_glx_make_current_context(dpy,

					       (old && old != &dummyContext) ? old->driContext : NULL,

					       gc ? gc->driContext : NULL, draw);

   apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");

   if (error)

      return 1; /* GLXBadContext is the same as Success (0) */

   apple_glapi_set_dispatch();

   return Success;

}

static void

applegl_unbind_context(struct glx_context *gc, struct glx_context *new)

{

   Display *dpy;

   bool error;

   /* If we don't have a context, then we have nothing to unbind */

   if (!gc)

      return;

   /* If we have a new context, keep this one around and remove it during bind. */

   if (new)

      return;

   dpy = gc->psc->dpy;

   error = apple_glx_make_current_context(dpy,

					  (gc != &dummyContext) ? gc->driContext : NULL,

					  NULL, None);

   apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");

}

static void

applegl_wait_gl(struct glx_context *gc)

{

   glFinish();

}

static void

applegl_wait_x(struct glx_context *gc)

{

   Display *dpy = gc->psc->dpy;

   apple_glx_waitx(dpy, gc->driContext);

}

static void *

applegl_get_proc_address(const char *symbol)

{

   return dlsym(apple_cgl_get_dl_handle(), symbol);

}

static const struct glx_context_vtable applegl_context_vtable = {

   applegl_destroy_context,

   applegl_bind_context,

   applegl_unbind_context,

   applegl_wait_gl,

   applegl_wait_x,

   DRI_glXUseXFont,

   NULL, /* bind_tex_image, */

   NULL, /* release_tex_image, */

   applegl_get_proc_address,

};

struct glx_context *

applegl_create_context(struct glx_screen *psc,

		       struct glx_config *config,

		       struct glx_context *shareList, int renderType)

{

   struct glx_context *gc;

   int errorcode;

   bool x11error;

   Display *dpy = psc->dpy;

   int screen = psc->scr;

   /* TODO: Integrate this with apple_glx_create_context and make

    * struct apple_glx_context inherit from struct glx_context. */

   gc = calloc(1, sizeof(*gc));

   if (gc == NULL)

      return NULL;

   if (!glx_context_init(gc, psc, config)) {

      free(gc);

      return NULL;

   }

   gc->vtable = &applegl_context_vtable;

   gc->driContext = NULL;

   /* TODO: darwin: Integrate with above to do indirect */

   if(apple_glx_create_context(&gc->driContext, dpy, screen, config,

			       shareList ? shareList->driContext : NULL,

			       &errorcode, &x11error)) {

      __glXSendError(dpy, errorcode, 0, X_GLXCreateContext, x11error);

      gc->vtable->destroy(gc);

      return NULL;

   }

   gc->currentContextTag = -1;

   gc->config = config;

   gc->isDirect = GL_TRUE;

   gc->xid = 1; /* Just something not None, so we know when to destroy

		 * it in MakeContextCurrent. */

   return gc;

}

struct glx_screen_vtable applegl_screen_vtable = {

   applegl_create_context

};

_X_HIDDEN struct glx_screen *

applegl_create_screen(int screen, struct glx_display * priv)

{

   struct glx_screen *psc;

   psc = calloc(1, sizeof *psc);

   if (psc == NULL)

      return NULL;

   glx_screen_init(psc, screen, priv);

   psc->vtable = &applegl_screen_vtable;

   return psc;

}

_X_HIDDEN int

applegl_create_display(struct glx_display *glx_dpy)

{

   if(!apple_init_glx(glx_dpy->dpy))

      return 1;

   return GLXBadContext;

}

#endif