diff options
Diffstat (limited to 'source/blender/editors/space_clip/tracking_ops_plane.c')
| -rw-r--r-- | source/blender/editors/space_clip/tracking_ops_plane.c | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/source/blender/editors/space_clip/tracking_ops_plane.c b/source/blender/editors/space_clip/tracking_ops_plane.c new file mode 100644 index 00000000000..4332f3ea765 --- /dev/null +++ b/source/blender/editors/space_clip/tracking_ops_plane.c @@ -0,0 +1,431 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2011 Blender Foundation. + * All rights reserved. + * + * + * Contributor(s): Blender Foundation, + * Sergey Sharybin + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/editors/space_clip/tracking_ops_plane.c + * \ingroup spclip + */ + +#include "MEM_guardedalloc.h" + +#include "DNA_screen_types.h" +#include "DNA_space_types.h" + +#include "BLI_utildefines.h" +#include "BLI_math.h" + +#include "BKE_context.h" +#include "BKE_tracking.h" +#include "BKE_depsgraph.h" +#include "BKE_report.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "ED_clip.h" + +#include "clip_intern.h" +#include "tracking_ops_intern.h" + +/********************** Create plane track operator *********************/ + +static int create_plane_track_tracks_exec(bContext *C, wmOperator *op) +{ + SpaceClip *sc = CTX_wm_space_clip(C); + MovieClip *clip = ED_space_clip_get_clip(sc); + MovieTracking *tracking = &clip->tracking; + MovieTrackingPlaneTrack *plane_track; + ListBase *tracks_base = BKE_tracking_get_active_tracks(tracking); + ListBase *plane_tracks_base = BKE_tracking_get_active_plane_tracks(tracking); + int framenr = ED_space_clip_get_clip_frame_number(sc); + + plane_track = BKE_tracking_plane_track_add(tracking, + plane_tracks_base, + tracks_base, + framenr); + + if (plane_track == NULL) { + BKE_report(op->reports, RPT_ERROR, "Need at least 4 selected point tracks to create a plane"); + return OPERATOR_CANCELLED; + } + else { + BKE_tracking_tracks_deselect_all(tracks_base); + + plane_track->flag |= SELECT; + clip->tracking.act_track = NULL; + clip->tracking.act_plane_track = plane_track; + + /* Compute homoraphies and apply them on marker's corner, so we've got + * quite nice motion from the very beginning. + */ + BKE_tracking_track_plane_from_existing_motion(plane_track, framenr); + } + + WM_event_add_notifier(C, NC_MOVIECLIP | NA_EDITED, clip); + + return OPERATOR_FINISHED; +} + +void CLIP_OT_create_plane_track(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Create Plane Track"; + ot->description = "Create new plane track out of selected point tracks"; + ot->idname = "CLIP_OT_create_plane_track"; + + /* api callbacks */ + ot->exec = create_plane_track_tracks_exec; + ot->poll = ED_space_clip_tracking_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; +} + +/********************** Slide plane marker corner operator *********************/ + +typedef struct SlidePlaneMarkerData { + int event_type; + MovieTrackingPlaneTrack *plane_track; + MovieTrackingPlaneMarker *plane_marker; + int width, height; + int corner_index; + float *corner; + int previous_mval[2]; + float previous_corner[2]; + float old_corner[2]; + bool accurate; +} SlidePlaneMarkerData; + +static float mouse_to_plane_slide_zone_distance_squared( + const float co[2], + const float slide_zone[2], + int width, + int height) +{ + float pixel_co[2] = {co[0] * width, co[1] * height}, + pixel_slide_zone[2] = {slide_zone[0] * width, slide_zone[1] * height}; + return SQUARE(pixel_co[0] - pixel_slide_zone[0]) + + SQUARE(pixel_co[1] - pixel_slide_zone[1]); +} + +static MovieTrackingPlaneTrack *tracking_plane_marker_check_slide( + bContext *C, + const wmEvent *event, + int *corner_r) +{ + const float distance_clip_squared = 12.0f * 12.0f; + SpaceClip *sc = CTX_wm_space_clip(C); + ARegion *ar = CTX_wm_region(C); + MovieClip *clip = ED_space_clip_get_clip(sc); + MovieTracking *tracking = &clip->tracking; + int width, height; + float co[2]; + ListBase *plane_tracks_base = BKE_tracking_get_active_plane_tracks(tracking); + int framenr = ED_space_clip_get_clip_frame_number(sc); + + ED_space_clip_get_size(sc, &width, &height); + if (width == 0 || height == 0) { + return NULL; + } + + ED_clip_mouse_pos(sc, ar, event->mval, co); + + float min_distance_squared = FLT_MAX; + int min_corner = -1; + MovieTrackingPlaneTrack *min_plane_track = NULL; + for (MovieTrackingPlaneTrack *plane_track = plane_tracks_base->first; + plane_track != NULL; + plane_track = plane_track->next) + { + if (PLANE_TRACK_VIEW_SELECTED(plane_track)) { + MovieTrackingPlaneMarker *plane_marker = + BKE_tracking_plane_marker_get(plane_track, framenr); + for (int i = 0; i < 4; i++) { + float distance_squared = + mouse_to_plane_slide_zone_distance_squared( + co, + plane_marker->corners[i], + width, + height); + + if (distance_squared < min_distance_squared) { + min_distance_squared = distance_squared; + min_corner = i; + min_plane_track = plane_track; + } + } + } + } + + if (min_distance_squared < distance_clip_squared / sc->zoom) { + if (corner_r != NULL) { + *corner_r = min_corner; + } + return min_plane_track; + } + + return NULL; +} + +static void *slide_plane_marker_customdata(bContext *C, const wmEvent *event) +{ + SpaceClip *sc = CTX_wm_space_clip(C); + ARegion *ar = CTX_wm_region(C); + MovieTrackingPlaneTrack *plane_track; + int width, height; + float co[2]; + SlidePlaneMarkerData *customdata = NULL; + int framenr = ED_space_clip_get_clip_frame_number(sc); + int corner; + + ED_space_clip_get_size(sc, &width, &height); + if (width == 0 || height == 0) { + return NULL; + } + + ED_clip_mouse_pos(sc, ar, event->mval, co); + + plane_track = tracking_plane_marker_check_slide(C, event, &corner); + if (plane_track) { + MovieTrackingPlaneMarker *plane_marker; + + customdata = MEM_callocN(sizeof(SlidePlaneMarkerData), "slide plane marker data"); + + customdata->event_type = event->type; + + plane_marker = BKE_tracking_plane_marker_ensure(plane_track, framenr); + + customdata->plane_track = plane_track; + customdata->plane_marker = plane_marker; + customdata->width = width; + customdata->height = height; + + customdata->previous_mval[0] = event->mval[0]; + customdata->previous_mval[1] = event->mval[1]; + + customdata->corner_index = corner; + customdata->corner = plane_marker->corners[corner]; + + copy_v2_v2(customdata->previous_corner, customdata->corner); + copy_v2_v2(customdata->old_corner, customdata->corner); + } + + return customdata; +} + +static int slide_plane_marker_invoke(bContext *C, + wmOperator *op, + const wmEvent *event) +{ + SlidePlaneMarkerData *slidedata = slide_plane_marker_customdata(C, event); + + if (slidedata) { + SpaceClip *sc = CTX_wm_space_clip(C); + MovieClip *clip = ED_space_clip_get_clip(sc); + MovieTracking *tracking = &clip->tracking; + + tracking->act_plane_track = slidedata->plane_track; + tracking->act_track = NULL; + + op->customdata = slidedata; + + clip_tracking_hide_cursor(C); + WM_event_add_modal_handler(C, op); + + WM_event_add_notifier(C, NC_GEOM | ND_SELECT, NULL); + + return OPERATOR_RUNNING_MODAL; + } + + return OPERATOR_PASS_THROUGH; +} + +static void cancel_mouse_slide_plane_marker(SlidePlaneMarkerData *data) +{ + copy_v2_v2(data->corner, data->old_corner); +} + +static void free_slide_plane_marker_data(SlidePlaneMarkerData *data) +{ + MEM_freeN(data); +} + +static void slide_plane_marker_update_homographies(SpaceClip *sc, + SlidePlaneMarkerData *data) +{ + int framenr = ED_space_clip_get_clip_frame_number(sc); + + BKE_tracking_track_plane_from_existing_motion(data->plane_track, framenr); +} + +static int slide_plane_marker_modal(bContext *C, + wmOperator *op, + const wmEvent *event) +{ + SpaceClip *sc = CTX_wm_space_clip(C); + MovieClip *clip = ED_space_clip_get_clip(sc); + SlidePlaneMarkerData *data = (SlidePlaneMarkerData *) op->customdata; + float dx, dy, mdelta[2]; + int next_corner_index, prev_corner_index, diag_corner_index; + const float *next_corner, *prev_corner, *diag_corner; + float next_edge[2], prev_edge[2], next_diag_edge[2], prev_diag_edge[2]; + + switch (event->type) { + case LEFTCTRLKEY: + case RIGHTCTRLKEY: + case LEFTSHIFTKEY: + case RIGHTSHIFTKEY: + if (ELEM(event->type, LEFTSHIFTKEY, RIGHTSHIFTKEY)) { + data->accurate = event->val == KM_PRESS; + } + + /* fall-through */ + case MOUSEMOVE: + mdelta[0] = event->mval[0] - data->previous_mval[0]; + mdelta[1] = event->mval[1] - data->previous_mval[1]; + + dx = mdelta[0] / data->width / sc->zoom; + dy = mdelta[1] / data->height / sc->zoom; + + if (data->accurate) { + dx /= 5.0f; + dy /= 5.0f; + } + + data->corner[0] = data->previous_corner[0] + dx; + data->corner[1] = data->previous_corner[1] + dy; + + + /* + prev_edge + (Corner 3, current) <----------------------- (Corner 2, previous) + | ^ + | | + | | + | | + next_edge | | next_diag_edge + | | + | | + | | + v | + (Corner 0, next) -----------------------> (Corner 1, diagonal) + prev_diag_edge + */ + + next_corner_index = (data->corner_index + 1) % 4; + prev_corner_index = (data->corner_index + 3) % 4; + diag_corner_index = (data->corner_index + 2) % 4; + + next_corner = data->plane_marker->corners[next_corner_index]; + prev_corner = data->plane_marker->corners[prev_corner_index]; + diag_corner = data->plane_marker->corners[diag_corner_index]; + + sub_v2_v2v2(next_edge, next_corner, data->corner); + sub_v2_v2v2(prev_edge, data->corner, prev_corner); + sub_v2_v2v2(next_diag_edge, prev_corner, diag_corner); + sub_v2_v2v2(prev_diag_edge, diag_corner, next_corner); + + if (cross_v2v2(prev_edge, next_edge) < 0.0f) { + closest_to_line_v2(data->corner, + data->corner, + prev_corner, + next_corner); + } + + if (cross_v2v2(next_diag_edge, prev_edge) < 0.0f) { + closest_to_line_v2(data->corner, + data->corner, + prev_corner, + diag_corner); + } + + if (cross_v2v2(next_edge, prev_diag_edge) < 0.0f) { + closest_to_line_v2(data->corner, + data->corner, + next_corner, + diag_corner); + } + + data->previous_mval[0] = event->mval[0]; + data->previous_mval[1] = event->mval[1]; + copy_v2_v2(data->previous_corner, data->corner); + + DAG_id_tag_update(&sc->clip->id, 0); + + WM_event_add_notifier(C, NC_MOVIECLIP | NA_EDITED, NULL); + + break; + + case LEFTMOUSE: + case RIGHTMOUSE: + if (event->type == data->event_type && event->val == KM_RELEASE) { + /* Marker is now keyframed. */ + data->plane_marker->flag &= ~PLANE_MARKER_TRACKED; + + slide_plane_marker_update_homographies(sc, data); + + free_slide_plane_marker_data(op->customdata); + + clip_tracking_show_cursor(C); + + DAG_id_tag_update(&sc->clip->id, 0); + WM_event_add_notifier(C, NC_MOVIECLIP | NA_EDITED, clip); + + return OPERATOR_FINISHED; + } + + break; + + case ESCKEY: + cancel_mouse_slide_plane_marker(op->customdata); + + free_slide_plane_marker_data(op->customdata); + + clip_tracking_show_cursor(C); + + WM_event_add_notifier(C, NC_MOVIECLIP | NA_EDITED, clip); + + return OPERATOR_CANCELLED; + } + + return OPERATOR_RUNNING_MODAL; +} + +void CLIP_OT_slide_plane_marker(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Slide Plane Marker"; + ot->description = "Slide plane marker areas"; + ot->idname = "CLIP_OT_slide_plane_marker"; + + /* api callbacks */ + ot->poll = ED_space_clip_tracking_poll; + ot->invoke = slide_plane_marker_invoke; + ot->modal = slide_plane_marker_modal; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_GRAB_CURSOR | OPTYPE_BLOCKING; +} |