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|
/*
* ***** 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/clip_editor.c
* \ingroup spclip
*/
#include <stddef.h>
#include "MEM_guardedalloc.h"
#include "BKE_main.h"
#include "BKE_mask.h"
#include "BKE_movieclip.h"
#include "BKE_context.h"
#include "BKE_tracking.h"
#include "DNA_mask_types.h"
#include "DNA_object_types.h" /* SELECT */
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "GPU_extensions.h"
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "ED_screen.h"
#include "ED_clip.h"
#include "BIF_gl.h"
#include "BIF_glutil.h"
#include "WM_api.h"
#include "WM_types.h"
#include "UI_view2d.h"
#include "clip_intern.h" // own include
/* ******** operactor poll functions ******** */
int ED_space_clip_poll(bContext *C)
{
SpaceClip *sc = CTX_wm_space_clip(C);
if (sc && sc->clip)
return TRUE;
return FALSE;
}
int ED_space_clip_view_clip_poll(bContext *C)
{
SpaceClip *sc = CTX_wm_space_clip(C);
if (sc && sc->clip) {
return sc->view == SC_VIEW_CLIP;
}
return FALSE;
}
int ED_space_clip_tracking_poll(bContext *C)
{
SpaceClip *sc = CTX_wm_space_clip(C);
if (sc && sc->clip)
return ED_space_clip_check_show_trackedit(sc);
return FALSE;
}
int ED_space_clip_maskedit_poll(bContext *C)
{
SpaceClip *sc = CTX_wm_space_clip(C);
if (sc && sc->clip) {
return ED_space_clip_check_show_maskedit(sc);
}
return FALSE;
}
int ED_space_clip_maskedit_mask_poll(bContext *C)
{
if (ED_space_clip_maskedit_poll(C)) {
MovieClip *clip = CTX_data_edit_movieclip(C);
if (clip) {
SpaceClip *sc = CTX_wm_space_clip(C);
return sc->mask != NULL;
}
}
return FALSE;
}
/* ******** editing functions ******** */
void ED_space_clip_set_clip(bContext *C, bScreen *screen, SpaceClip *sc, MovieClip *clip)
{
MovieClip *old_clip;
if (!screen && C)
screen = CTX_wm_screen(C);
old_clip = sc->clip;
sc->clip = clip;
if (sc->clip && sc->clip->id.us == 0)
sc->clip->id.us = 1;
if (screen && sc->view == SC_VIEW_CLIP) {
ScrArea *area;
SpaceLink *sl;
for (area = screen->areabase.first; area; area = area->next) {
for (sl = area->spacedata.first; sl; sl = sl->next) {
if (sl->spacetype == SPACE_CLIP) {
SpaceClip *cur_sc = (SpaceClip *) sl;
if (cur_sc != sc && cur_sc->view != SC_VIEW_CLIP) {
if (cur_sc->clip == old_clip || cur_sc->clip == NULL) {
cur_sc->clip = clip;
}
}
}
}
}
}
if (C)
WM_event_add_notifier(C, NC_MOVIECLIP | NA_SELECTED, sc->clip);
}
MovieClip *ED_space_clip_get_clip(SpaceClip *sc)
{
return sc->clip;
}
Mask *ED_space_clip_get_mask(SpaceClip *sc)
{
return sc->mask;
}
ImBuf *ED_space_clip_get_buffer(SpaceClip *sc)
{
if (sc->clip) {
ImBuf *ibuf;
ibuf = BKE_movieclip_get_postprocessed_ibuf(sc->clip, &sc->user, sc->postproc_flag);
if (ibuf && (ibuf->rect || ibuf->rect_float))
return ibuf;
if (ibuf)
IMB_freeImBuf(ibuf);
}
return NULL;
}
ImBuf *ED_space_clip_get_stable_buffer(SpaceClip *sc, float loc[2], float *scale, float *angle)
{
if (sc->clip) {
ImBuf *ibuf;
ibuf = BKE_movieclip_get_stable_ibuf(sc->clip, &sc->user, loc, scale, angle, sc->postproc_flag);
if (ibuf && (ibuf->rect || ibuf->rect_float))
return ibuf;
if (ibuf)
IMB_freeImBuf(ibuf);
}
return NULL;
}
void ED_space_clip_get_clip_size(SpaceClip *sc, int *width, int *height)
{
if (!sc->clip) {
*width = *height = 0;
}
else {
BKE_movieclip_get_size(sc->clip, &sc->user, width, height);
}
}
void ED_space_clip_get_mask_size(SpaceClip *sc, int *width, int *height)
{
/* quite the same as ED_space_clip_size, but it also runs aspect correction on output resolution
* this is needed because mask should be rasterized with exactly the same resolution as
* currently displaying frame and it doesn't have access to aspect correction currently
* used for display. (sergey)
*/
if (!sc->mask) {
*width = 0;
*height = 0;
} else {
float aspx, aspy;
ED_space_clip_get_clip_size(sc, width, height);
ED_space_clip_get_clip_aspect(sc, &aspx, &aspy);
*width *= aspx;
*height *= aspy;
}
}
void ED_space_clip_get_mask_aspect(SpaceClip *sc, float *aspx, float *aspy)
{
int w, h;
ED_space_clip_get_clip_aspect(sc, aspx, aspy);
ED_space_clip_get_clip_size(sc, &w, &h);
/* now this is not accounted for! */
#if 0
*aspx *= (float)w;
*aspy *= (float)h;
#endif
if (*aspx < *aspy) {
*aspy = *aspy / *aspx;
*aspx = 1.0f;
}
else {
*aspx = *aspx / *aspy;
*aspy = 1.0f;
}
}
void ED_space_clip_get_zoom(SpaceClip *sc, ARegion *ar, float *zoomx, float *zoomy)
{
int width, height;
ED_space_clip_get_clip_size(sc, &width, &height);
*zoomx = (float)(ar->winrct.xmax - ar->winrct.xmin + 1) / (float)((ar->v2d.cur.xmax - ar->v2d.cur.xmin) * width);
*zoomy = (float)(ar->winrct.ymax - ar->winrct.ymin + 1) / (float)((ar->v2d.cur.ymax - ar->v2d.cur.ymin) * height);
}
void ED_space_clip_get_clip_aspect(SpaceClip *sc, float *aspx, float *aspy)
{
MovieClip *clip = ED_space_clip_get_clip(sc);
if (clip)
BKE_movieclip_aspect(clip, aspx, aspy);
else
*aspx = *aspy = 1.0f;
}
void ED_space_clip_get_clip_aspect_dimension_aware(SpaceClip *sc, float *aspx, float *aspy)
{
int w, h;
/* most of tools does not require aspect to be returned with dimensions correction
* due to they're invariant to this stuff, but some transformation tools like rotation
* should be aware of aspect correction caused by different resolution in different
* directions.
* mainly this is sued for transformation stuff
*/
ED_space_clip_get_clip_aspect(sc, aspx, aspy);
ED_space_clip_get_clip_size(sc, &w, &h);
*aspx *= (float)w;
*aspy *= (float)h;
if (*aspx < *aspy) {
*aspy = *aspy / *aspx;
*aspx = 1.0f;
}
else {
*aspx = *aspx / *aspy;
*aspy = 1.0f;
}
}
void ED_clip_update_frame(const Main *mainp, int cfra)
{
wmWindowManager *wm;
wmWindow *win;
/* image window, compo node users */
for (wm = mainp->wm.first; wm; wm = wm->id.next) { /* only 1 wm */
for (win = wm->windows.first; win; win = win->next) {
ScrArea *sa;
for (sa = win->screen->areabase.first; sa; sa = sa->next) {
if (sa->spacetype == SPACE_CLIP) {
SpaceClip *sc = sa->spacedata.first;
sc->scopes.ok = FALSE;
BKE_movieclip_user_set_frame(&sc->user, cfra);
}
}
}
}
}
/* return current frame number in clip space */
int ED_space_clip_get_clip_frame_number(SpaceClip *sc)
{
MovieClip *clip = ED_space_clip_get_clip(sc);
return BKE_movieclip_remap_scene_to_clip_frame(clip, sc->user.framenr);
}
static int selected_boundbox(SpaceClip *sc, float min[2], float max[2])
{
MovieClip *clip = ED_space_clip_get_clip(sc);
MovieTrackingTrack *track;
int width, height, ok = FALSE;
ListBase *tracksbase = BKE_tracking_get_active_tracks(&clip->tracking);
INIT_MINMAX2(min, max);
ED_space_clip_get_clip_size(sc, &width, &height);
track = tracksbase->first;
while (track) {
if (TRACK_VIEW_SELECTED(sc, track)) {
MovieTrackingMarker *marker = BKE_tracking_marker_get(track, sc->user.framenr);
if (marker) {
float pos[3];
pos[0] = marker->pos[0] + track->offset[0];
pos[1] = marker->pos[1] + track->offset[1];
pos[2] = 0.0f;
/* undistortion happens for normalized coords */
if (sc->user.render_flag & MCLIP_PROXY_RENDER_UNDISTORT) {
/* undistortion happens for normalized coords */
ED_clip_point_undistorted_pos(sc, pos, pos);
}
pos[0] *= width;
pos[1] *= height;
mul_v3_m4v3(pos, sc->stabmat, pos);
DO_MINMAX2(pos, min, max);
ok = TRUE;
}
}
track = track->next;
}
return ok;
}
int ED_clip_view_selection(SpaceClip *sc, ARegion *ar, int fit)
{
int w, h, frame_width, frame_height;
float min[2], max[2];
ED_space_clip_get_clip_size(sc, &frame_width, &frame_height);
if (frame_width == 0 || frame_height == 0)
return FALSE;
if (!selected_boundbox(sc, min, max))
return FALSE;
/* center view */
clip_view_center_to_point(sc, (max[0] + min[0]) / (2 * frame_width),
(max[1] + min[1]) / (2 * frame_height));
w = max[0] - min[0];
h = max[1] - min[1];
/* set zoom to see all selection */
if (w > 0 && h > 0) {
int width, height;
float zoomx, zoomy, newzoom, aspx, aspy;
ED_space_clip_get_clip_aspect(sc, &aspx, &aspy);
width = ar->winrct.xmax - ar->winrct.xmin + 1;
height = ar->winrct.ymax - ar->winrct.ymin + 1;
zoomx = (float)width / w / aspx;
zoomy = (float)height / h / aspy;
newzoom = 1.0f / power_of_2(1.0f / MIN2(zoomx, zoomy));
if (fit || sc->zoom > newzoom)
sc->zoom = newzoom;
}
return TRUE;
}
void ED_clip_point_undistorted_pos(SpaceClip *sc, const float co[2], float r_co[2])
{
copy_v2_v2(r_co, co);
if (sc->user.render_flag & MCLIP_PROXY_RENDER_UNDISTORT) {
MovieClip *clip = ED_space_clip_get_clip(sc);
float aspy = 1.0f / clip->tracking.camera.pixel_aspect;
int width, height;
ED_space_clip_get_clip_size(sc, &width, &height);
r_co[0] *= width;
r_co[1] *= height * aspy;
BKE_tracking_undistort_v2(&clip->tracking, r_co, r_co);
r_co[0] /= width;
r_co[1] /= height * aspy;
}
}
void ED_clip_point_stable_pos(const bContext *C, float x, float y, float *xr, float *yr)
{
ARegion *ar = CTX_wm_region(C);
SpaceClip *sc = CTX_wm_space_clip(C);
int sx, sy, width, height;
float zoomx, zoomy, pos[3], imat[4][4];
ED_space_clip_get_zoom(sc, ar, &zoomx, &zoomy);
ED_space_clip_get_clip_size(sc, &width, &height);
UI_view2d_to_region_no_clip(&ar->v2d, 0.0f, 0.0f, &sx, &sy);
pos[0] = (x - sx) / zoomx;
pos[1] = (y - sy) / zoomy;
pos[2] = 0.0f;
invert_m4_m4(imat, sc->stabmat);
mul_v3_m4v3(pos, imat, pos);
*xr = pos[0] / width;
*yr = pos[1] / height;
if (sc->user.render_flag & MCLIP_PROXY_RENDER_UNDISTORT) {
MovieClip *clip = ED_space_clip_get_clip(sc);
MovieTracking *tracking = &clip->tracking;
float aspy = 1.0f / tracking->camera.pixel_aspect;
float tmp[2] = {*xr * width, *yr * height * aspy};
BKE_tracking_distort_v2(tracking, tmp, tmp);
*xr = tmp[0] / width;
*yr = tmp[1] / (height * aspy);
}
}
/**
* \brief the reverse of ED_clip_point_stable_pos(), gets the marker region coords.
* better name here? view_to_track / track_to_view or so?
*/
void ED_clip_point_stable_pos__reverse(SpaceClip *sc, ARegion *ar, const float co[2], float r_co[2])
{
float zoomx, zoomy;
float pos[3];
int width, height;
int sx, sy;
UI_view2d_to_region_no_clip(&ar->v2d, 0.0f, 0.0f, &sx, &sy);
ED_space_clip_get_clip_size(sc, &width, &height);
ED_space_clip_get_zoom(sc, ar, &zoomx, &zoomy);
ED_clip_point_undistorted_pos(sc, co, pos);
pos[2] = 0.0f;
/* untested */
mul_v3_m4v3(pos, sc->stabmat, pos);
r_co[0] = (pos[0] * width * zoomx) + (float)sx;
r_co[1] = (pos[1] * height * zoomy) + (float)sy;
}
void ED_clip_mouse_pos(const bContext *C, wmEvent *event, float co[2])
{
ED_clip_point_stable_pos(C, event->mval[0], event->mval[1], &co[0], &co[1]);
}
/* OpenGL draw context */
typedef struct SpaceClipDrawContext {
int support_checked, buffers_supported;
GLuint texture; /* OGL texture ID */
short texture_allocated; /* flag if texture was allocated by glGenTextures */
struct ImBuf *texture_ibuf; /* image buffer for which texture was created */
int image_width, image_height; /* image width and height for which texture was created */
unsigned last_texture; /* ID of previously used texture, so it'll be restored after clip drawing */
/* fields to check if cache is still valid */
int framenr, start_frame, frame_offset;
short render_size, render_flag;
} SpaceClipDrawContext;
int ED_space_clip_texture_buffer_supported(SpaceClip *sc)
{
SpaceClipDrawContext *context = sc->draw_context;
if (!context) {
context = MEM_callocN(sizeof(SpaceClipDrawContext), "SpaceClipDrawContext");
sc->draw_context = context;
}
if (!context->support_checked) {
context->support_checked = TRUE;
if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_ANY, GPU_DRIVER_ANY)) {
context->buffers_supported = FALSE;
}
else {
context->buffers_supported = GPU_non_power_of_two_support();
}
}
return context->buffers_supported;
}
int ED_space_clip_load_movieclip_buffer(SpaceClip *sc, ImBuf *ibuf)
{
SpaceClipDrawContext *context = sc->draw_context;
MovieClip *clip = ED_space_clip_get_clip(sc);
int need_rebind = 0;
context->last_texture = glaGetOneInteger(GL_TEXTURE_2D);
/* image texture need to be rebinded if displaying another image buffer
* assuming displaying happens of footage frames only on which painting doesn't heppen.
* so not changed image buffer pointer means unchanged image content */
need_rebind |= context->texture_ibuf != ibuf;
need_rebind |= context->framenr != sc->user.framenr;
need_rebind |= context->render_size != sc->user.render_size;
need_rebind |= context->render_flag != sc->user.render_flag;
need_rebind |= context->start_frame != clip->start_frame;
need_rebind |= context->frame_offset != clip->frame_offset;
if (need_rebind) {
int width = ibuf->x, height = ibuf->y;
int need_recreate = 0;
if (width > GL_MAX_TEXTURE_SIZE || height > GL_MAX_TEXTURE_SIZE)
return 0;
/* if image resolution changed (e.g. switched to proxy display) texture need to be recreated */
need_recreate = context->image_width != ibuf->x || context->image_height != ibuf->y;
if (context->texture_ibuf && need_recreate) {
glDeleteTextures(1, &context->texture);
context->texture_allocated = 0;
}
if (need_recreate || !context->texture_allocated) {
/* texture doesn't exist yet or need to be re-allocated because of changed dimensions */
int filter = GL_LINEAR;
/* non-scaled proxy shouldn;t use diltering */
if ((clip->flag & MCLIP_USE_PROXY) == 0 ||
ELEM(sc->user.render_size, MCLIP_PROXY_RENDER_SIZE_FULL, MCLIP_PROXY_RENDER_SIZE_100))
{
filter = GL_NEAREST;
}
glGenTextures(1, &context->texture);
glBindTexture(GL_TEXTURE_2D, context->texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
}
else {
/* if texture doesn't need to be reallocated itself, just bind it so
* loading of image will happen to a proper texture */
glBindTexture(GL_TEXTURE_2D, context->texture);
}
if (ibuf->rect_float) {
if (ibuf->rect == NULL)
IMB_rect_from_float(ibuf);
}
if (ibuf->rect)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, ibuf->rect);
/* store settings */
context->texture_allocated = 1;
context->texture_ibuf = ibuf;
context->image_width = ibuf->x;
context->image_height = ibuf->y;
context->framenr = sc->user.framenr;
context->render_size = sc->user.render_size;
context->render_flag = sc->user.render_flag;
context->start_frame = clip->start_frame;
context->frame_offset = clip->frame_offset;
}
else {
/* displaying exactly the same image which was loaded t oa texture,
* just bint texture in this case */
glBindTexture(GL_TEXTURE_2D, context->texture);
}
glEnable(GL_TEXTURE_2D);
return TRUE;
}
void ED_space_clip_unload_movieclip_buffer(SpaceClip *sc)
{
SpaceClipDrawContext *context = sc->draw_context;
glBindTexture(GL_TEXTURE_2D, context->last_texture);
glDisable(GL_TEXTURE_2D);
}
void ED_space_clip_free_texture_buffer(SpaceClip *sc)
{
SpaceClipDrawContext *context = sc->draw_context;
if (context) {
glDeleteTextures(1, &context->texture);
MEM_freeN(context);
}
}
/* ******** masking editing related functions ******** */
int ED_space_clip_check_show_trackedit(SpaceClip *sc)
{
if (sc) {
return ELEM3(sc->mode, SC_MODE_TRACKING, SC_MODE_RECONSTRUCTION, SC_MODE_DISTORTION);
}
return FALSE;
}
int ED_space_clip_check_show_maskedit(SpaceClip *sc)
{
if (sc) {
return sc->mode == SC_MODE_MASKEDIT;
}
return FALSE;
}
void ED_space_clip_set_mask(bContext *C, SpaceClip *sc, Mask *mask)
{
sc->mask = mask;
if (sc->mask && sc->mask->id.us == 0) {
sc->clip->id.us = 1;
}
if (C) {
WM_event_add_notifier(C, NC_MASK | NA_SELECTED, mask);
}
}
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