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_state(struct drm_plane_state *state, 44 const struct drm_rect *clip, 45 int min_scale, int max_scale, 46 bool can_position, 47 bool can_update_disabled); 48 int drm_plane_helper_check_update(struct drm_plane *plane, 49 struct drm_crtc *crtc, 50 struct drm_framebuffer *fb, 51 struct drm_rect *src, 52 struct drm_rect *dest, 53 const struct drm_rect *clip, 54 unsigned int rotation, 55 int min_scale, 56 int max_scale, 57 bool can_position, 58 bool can_update_disabled, 59 bool *visible); 60 int drm_primary_helper_update(struct drm_plane *plane, 61 struct drm_crtc *crtc, 62 struct drm_framebuffer *fb, 63 int crtc_x, int crtc_y, 64 unsigned int crtc_w, unsigned int crtc_h, 65 uint32_t src_x, uint32_t src_y, 66 uint32_t src_w, uint32_t src_h); 67 int drm_primary_helper_disable(struct drm_plane *plane); 68 void drm_primary_helper_destroy(struct drm_plane *plane); 69 extern const struct drm_plane_funcs drm_primary_helper_funcs; 70 71 int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, 72 struct drm_framebuffer *fb, 73 int crtc_x, int crtc_y, 74 unsigned int crtc_w, unsigned int crtc_h, 75 uint32_t src_x, uint32_t src_y, 76 uint32_t src_w, uint32_t src_h); 77 int drm_plane_helper_disable(struct drm_plane *plane); 78 79 /* For use by drm_crtc_helper.c */ 80 int drm_plane_helper_commit(struct drm_plane *plane, 81 struct drm_plane_state *plane_state, 82 struct drm_framebuffer *old_fb); 83 #endif 84