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      1 /*	$NetBSD: drm_plane_helper.h,v 1.4 2021/12/18 23:45:46 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2011-2013 Intel Corporation
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the next
     14  * paragraph) shall be included in all copies or substantial portions of the
     15  * Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     23  * SOFTWARE.
     24  */
     25 
     26 #ifndef DRM_PLANE_HELPER_H
     27 #define DRM_PLANE_HELPER_H
     28 
     29 #include <drm/drm_rect.h>
     30 #include <drm/drm_crtc.h>
     31 #include <drm/drm_modeset_helper_vtables.h>
     32 #include <drm/drm_modeset_helper.h>
     33 
     34 /*
     35  * Drivers that don't allow primary plane scaling may pass this macro in place
     36  * of the min/max scale parameters of the update checker function.
     37  *
     38  * Due to src being in 16.16 fixed point and dest being in integer pixels,
     39  * 1<<16 represents no scaling.
     40  */
     41 #define DRM_PLANE_HELPER_NO_SCALING (1<<16)
     42 
     43 void drm_primary_helper_destroy(struct drm_plane *plane);
     44 extern const struct drm_plane_funcs drm_primary_helper_funcs;
     45 
     46 #endif
     47