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 #include <drm/drm_modeset_helper_vtables.h> 30 31 /* 32 * Drivers that don't allow primary plane scaling may pass this macro in place 33 * of the min/max scale parameters of the update checker function. 34 * 35 * Due to src being in 16.16 fixed point and dest being in integer pixels, 36 * 1<<16 represents no scaling. 37 */ 38 #define DRM_PLANE_HELPER_NO_SCALING (1<<16) 39 40 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, 41 const struct drm_crtc_funcs *funcs); 42 43 int drm_plane_helper_check_update(struct drm_plane *plane, 44 struct drm_crtc *crtc, 45 struct drm_framebuffer *fb, 46 struct drm_rect *src, 47 struct drm_rect *dest, 48 const struct drm_rect *clip, 49 int min_scale, 50 int max_scale, 51 bool can_position, 52 bool can_update_disabled, 53 bool *visible); 54 int drm_primary_helper_update(struct drm_plane *plane, 55 struct drm_crtc *crtc, 56 struct drm_framebuffer *fb, 57 int crtc_x, int crtc_y, 58 unsigned int crtc_w, unsigned int crtc_h, 59 uint32_t src_x, uint32_t src_y, 60 uint32_t src_w, uint32_t src_h); 61 int drm_primary_helper_disable(struct drm_plane *plane); 62 void drm_primary_helper_destroy(struct drm_plane *plane); 63 extern const struct drm_plane_funcs drm_primary_helper_funcs; 64 65 int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, 66 struct drm_framebuffer *fb, 67 int crtc_x, int crtc_y, 68 unsigned int crtc_w, unsigned int crtc_h, 69 uint32_t src_x, uint32_t src_y, 70 uint32_t src_w, uint32_t src_h); 71 int drm_plane_helper_disable(struct drm_plane *plane); 72 73 /* For use by drm_crtc_helper.c */ 74 int drm_plane_helper_commit(struct drm_plane *plane, 75 struct drm_plane_state *plane_state, 76 struct drm_framebuffer *old_fb); 77 #endif 78