1 /* 2 * Copyright (C) 2011-2013 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 */ 23 24 #ifndef DRM_PLANE_HELPER_H 25 #define DRM_PLANE_HELPER_H 26 27 #include <drm/drm_rect.h> 28 #include <drm/drm_crtc.h> 29 30 /* 31 * Drivers that don't allow primary plane scaling may pass this macro in place 32 * of the min/max scale parameters of the update checker function. 33 * 34 * Due to src being in 16.16 fixed point and dest being in integer pixels, 35 * 1<<16 represents no scaling. 36 */ 37 #define DRM_PLANE_HELPER_NO_SCALING (1<<16) 38 39 /** 40 * DOC: plane helpers 41 * 42 * Helper functions to assist with creation and handling of CRTC primary 43 * planes. 44 */ 45 46 extern int drm_crtc_init(struct drm_device *dev, 47 struct drm_crtc *crtc, 48 const struct drm_crtc_funcs *funcs); 49 50 extern int drm_plane_helper_check_update(struct drm_plane *plane, 51 struct drm_crtc *crtc, 52 struct drm_framebuffer *fb, 53 struct drm_rect *src, 54 struct drm_rect *dest, 55 const struct drm_rect *clip, 56 int min_scale, 57 int max_scale, 58 bool can_position, 59 bool can_update_disabled, 60 bool *visible); 61 extern int drm_primary_helper_update(struct drm_plane *plane, 62 struct drm_crtc *crtc, 63 struct drm_framebuffer *fb, 64 int crtc_x, int crtc_y, 65 unsigned int crtc_w, unsigned int crtc_h, 66 uint32_t src_x, uint32_t src_y, 67 uint32_t src_w, uint32_t src_h); 68 extern int drm_primary_helper_disable(struct drm_plane *plane); 69 extern void drm_primary_helper_destroy(struct drm_plane *plane); 70 extern const struct drm_plane_funcs drm_primary_helper_funcs; 71 extern struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev, 72 const uint32_t *formats, 73 int num_formats); 74 75 76 #endif 77