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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) 2012 Blender Foundation.
* All rights reserved.
*
*
* Contributor(s): Blender Foundation,
* Campbell Barton,
* Sergey Sharybin
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/mask/mask_draw.c
* \ingroup edmask
*/
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BLI_rect.h"
#include "BKE_context.h"
#include "BKE_mask.h"
#include "DNA_mask_types.h"
#include "DNA_screen_types.h"
#include "DNA_object_types.h" /* SELECT */
#include "DNA_space_types.h"
#include "ED_clip.h"
#include "ED_mask.h" /* own include */
#include "ED_space_api.h"
#include "BIF_gl.h"
#include "UI_resources.h"
#include "UI_view2d.h"
#include "mask_intern.h" /* own include */
static void mask_spline_color_get(MaskLayer *masklay, MaskSpline *spline, const int is_sel,
unsigned char r_rgb[4])
{
if (is_sel) {
if (masklay->act_spline == spline) {
r_rgb[0] = r_rgb[1] = r_rgb[2] = 255;
}
else {
r_rgb[0] = 255;
r_rgb[1] = r_rgb[2] = 0;
}
}
else {
r_rgb[0] = 128;
r_rgb[1] = r_rgb[2] = 0;
}
r_rgb[3] = 255;
}
static void mask_spline_feather_color_get(MaskLayer *UNUSED(masklay), MaskSpline *UNUSED(spline), const int is_sel,
unsigned char r_rgb[4])
{
if (is_sel) {
r_rgb[1] = 255;
r_rgb[0] = r_rgb[2] = 0;
}
else {
r_rgb[1] = 128;
r_rgb[0] = r_rgb[2] = 0;
}
r_rgb[3] = 255;
}
#if 0
static void draw_spline_parents(MaskLayer *UNUSED(masklay), MaskSpline *spline)
{
int i;
MaskSplinePoint *points_array = BKE_mask_spline_point_array(spline);
if (!spline->tot_point)
return;
glColor3ub(0, 0, 0);
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0xAAAA);
glBegin(GL_LINES);
for (i = 0; i < spline->tot_point; i++) {
MaskSplinePoint *point = &points_array[i];
BezTriple *bezt = &point->bezt;
if (point->parent.id) {
glVertex2f(bezt->vec[1][0],
bezt->vec[1][1]);
glVertex2f(bezt->vec[1][0] - point->parent.offset[0],
bezt->vec[1][1] - point->parent.offset[1]);
}
}
glEnd();
glDisable(GL_LINE_STIPPLE);
}
#endif
static void mask_point_undistort_pos(SpaceClip *sc, float r_co[2], const float co[2])
{
BKE_mask_coord_to_movieclip(sc->clip, &sc->user, r_co, co);
ED_clip_point_undistorted_pos(sc, r_co, r_co);
BKE_mask_coord_from_movieclip(sc->clip, &sc->user, r_co, r_co);
}
/* return non-zero if spline is selected */
static void draw_spline_points(const bContext *C, MaskLayer *masklay, MaskSpline *spline,
const char UNUSED(draw_flag), const char draw_type)
{
const int is_spline_sel = (spline->flag & SELECT) && (masklay->restrictflag & MASK_RESTRICT_SELECT) == 0;
unsigned char rgb_spline[4];
MaskSplinePoint *points_array = BKE_mask_spline_point_array(spline);
SpaceClip *sc = CTX_wm_space_clip(C);
int undistort = FALSE;
int i, hsize, tot_feather_point;
float (*feather_points)[2], (*fp)[2];
if (!spline->tot_point)
return;
if (sc)
undistort = sc->clip && sc->user.render_flag & MCLIP_PROXY_RENDER_UNDISTORT;
/* TODO, add this to sequence editor */
hsize = 4; /* UI_GetThemeValuef(TH_HANDLE_VERTEX_SIZE); */
glPointSize(hsize);
mask_spline_color_get(masklay, spline, is_spline_sel, rgb_spline);
/* feather points */
feather_points = fp = BKE_mask_spline_feather_points(spline, &tot_feather_point);
for (i = 0; i < spline->tot_point; i++) {
/* watch it! this is intentionally not the deform array, only check for sel */
MaskSplinePoint *point = &spline->points[i];
int j;
for (j = 0; j <= point->tot_uw; j++) {
float feather_point[2];
int sel = FALSE;
copy_v2_v2(feather_point, *fp);
if (undistort)
mask_point_undistort_pos(sc, feather_point, feather_point);
if (j == 0) {
sel = MASKPOINT_ISSEL_ANY(point);
}
else {
sel = point->uw[j - 1].flag & SELECT;
}
if (sel) {
if (point == masklay->act_point)
glColor3f(1.0f, 1.0f, 1.0f);
else
glColor3f(1.0f, 1.0f, 0.0f);
}
else {
glColor3f(0.5f, 0.5f, 0.0f);
}
glBegin(GL_POINTS);
glVertex2fv(feather_point);
glEnd();
fp++;
}
}
MEM_freeN(feather_points);
/* control points */
for (i = 0; i < spline->tot_point; i++) {
/* watch it! this is intentionally not the deform array, only check for sel */
MaskSplinePoint *point = &spline->points[i];
MaskSplinePoint *point_deform = &points_array[i];
BezTriple *bezt = &point_deform->bezt;
float handle[2];
float vert[2];
int has_handle = BKE_mask_point_has_handle(point);
copy_v2_v2(vert, bezt->vec[1]);
BKE_mask_point_handle(point_deform, handle);
if (undistort) {
mask_point_undistort_pos(sc, vert, vert);
mask_point_undistort_pos(sc, handle, handle);
}
/* draw handle segment */
if (has_handle) {
/* this could be split into its own loop */
if (draw_type == MASK_DT_OUTLINE) {
const unsigned char rgb_gray[4] = {0x60, 0x60, 0x60, 0xff};
glLineWidth(3);
glColor4ubv(rgb_gray);
glBegin(GL_LINES);
glVertex2fv(vert);
glVertex2fv(handle);
glEnd();
glLineWidth(1);
}
glColor3ubv(rgb_spline);
glBegin(GL_LINES);
glVertex2fv(vert);
glVertex2fv(handle);
glEnd();
}
/* draw CV point */
if (MASKPOINT_ISSEL_KNOT(point)) {
if (point == masklay->act_point)
glColor3f(1.0f, 1.0f, 1.0f);
else
glColor3f(1.0f, 1.0f, 0.0f);
}
else
glColor3f(0.5f, 0.5f, 0.0f);
glBegin(GL_POINTS);
glVertex2fv(vert);
glEnd();
/* draw handle points */
if (has_handle) {
if (MASKPOINT_ISSEL_HANDLE(point)) {
if (point == masklay->act_point)
glColor3f(1.0f, 1.0f, 1.0f);
else
glColor3f(1.0f, 1.0f, 0.0f);
}
else {
glColor3f(0.5f, 0.5f, 0.0f);
}
glBegin(GL_POINTS);
glVertex2fv(handle);
glEnd();
}
}
glPointSize(1.0f);
}
/* #define USE_XOR */
static void mask_color_active_tint(unsigned char r_rgb[4], const unsigned char rgb[4], const short is_active)
{
if (!is_active) {
r_rgb[0] = (unsigned char)((((int)(rgb[0])) + 128) / 2);
r_rgb[1] = (unsigned char)((((int)(rgb[1])) + 128) / 2);
r_rgb[2] = (unsigned char)((((int)(rgb[2])) + 128) / 2);
r_rgb[3] = rgb[3];
}
else {
*(unsigned int *)r_rgb = *(const unsigned int *)rgb;
}
}
static void mask_draw_curve_type(const bContext *C, MaskSpline *spline, float (*orig_points)[2], int tot_point,
const short is_feather, const short is_smooth, const short is_active,
const unsigned char rgb_spline[4], const char draw_type)
{
const int draw_method = (spline->flag & MASK_SPLINE_CYCLIC) ? GL_LINE_LOOP : GL_LINE_STRIP;
const unsigned char rgb_black[4] = {0x00, 0x00, 0x00, 0xff};
// const unsigned char rgb_white[4] = {0xff, 0xff, 0xff, 0xff};
unsigned char rgb_tmp[4];
SpaceClip *sc = CTX_wm_space_clip(C);
float (*points)[2] = orig_points;
if (sc) {
int undistort = sc->clip && sc->user.render_flag & MCLIP_PROXY_RENDER_UNDISTORT;
if (undistort) {
int i;
points = MEM_callocN(2 * tot_point * sizeof(float), "undistorthed mask curve");
for (i = 0; i < tot_point; i++) {
mask_point_undistort_pos(sc, points[i], orig_points[i]);
}
}
}
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, points);
switch (draw_type) {
case MASK_DT_OUTLINE:
glLineWidth(3);
mask_color_active_tint(rgb_tmp, rgb_black, is_active);
glColor4ubv(rgb_tmp);
glDrawArrays(draw_method, 0, tot_point);
glLineWidth(1);
mask_color_active_tint(rgb_tmp, rgb_spline, is_active);
glColor4ubv(rgb_tmp);
glDrawArrays(draw_method, 0, tot_point);
break;
case MASK_DT_DASH:
default:
glEnable(GL_LINE_STIPPLE);
#ifdef USE_XOR
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(GL_OR);
#endif
mask_color_active_tint(rgb_tmp, rgb_spline, is_active);
glColor4ubv(rgb_tmp);
glLineStipple(3, 0xaaaa);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, points);
glDrawArrays(draw_method, 0, tot_point);
#ifdef USE_XOR
glDisable(GL_COLOR_LOGIC_OP);
#endif
mask_color_active_tint(rgb_tmp, rgb_black, is_active);
glColor4ubv(rgb_tmp);
glLineStipple(3, 0x5555);
glDrawArrays(draw_method, 0, tot_point);
glDisable(GL_LINE_STIPPLE);
break;
case MASK_DT_BLACK:
case MASK_DT_WHITE:
if (draw_type == MASK_DT_BLACK) { rgb_tmp[0] = rgb_tmp[1] = rgb_tmp[2] = 0; }
else { rgb_tmp[0] = rgb_tmp[1] = rgb_tmp[2] = 255; }
/* alpha values seem too low but gl draws many points that compensate for it */
if (is_feather) { rgb_tmp[3] = 64; }
else { rgb_tmp[3] = 128; }
if (is_feather) {
rgb_tmp[0] = (unsigned char)(((short)rgb_tmp[0] + (short)rgb_spline[0]) / 2);
rgb_tmp[1] = (unsigned char)(((short)rgb_tmp[1] + (short)rgb_spline[1]) / 2);
rgb_tmp[2] = (unsigned char)(((short)rgb_tmp[2] + (short)rgb_spline[2]) / 2);
}
if (is_smooth == FALSE && is_feather) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
mask_color_active_tint(rgb_tmp, rgb_tmp, is_active);
glColor4ubv(rgb_tmp);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, points);
glDrawArrays(draw_method, 0, tot_point);
if (is_smooth == FALSE && is_feather) {
glDisable(GL_BLEND);
}
break;
}
glDisableClientState(GL_VERTEX_ARRAY);
if (points != orig_points)
MEM_freeN(points);
}
static void draw_spline_curve(const bContext *C, MaskLayer *masklay, MaskSpline *spline,
const char draw_flag, const char draw_type,
const short is_active,
int width, int height)
{
const unsigned int resol = max_ii(BKE_mask_spline_feather_resolution(spline, width, height),
BKE_mask_spline_resolution(spline, width, height));
unsigned char rgb_tmp[4];
const short is_spline_sel = (spline->flag & SELECT) && (masklay->restrictflag & MASK_RESTRICT_SELECT) == 0;
const short is_smooth = (draw_flag & MASK_DRAWFLAG_SMOOTH);
const short is_fill = (spline->flag & MASK_SPLINE_NOFILL) == 0;
unsigned int tot_diff_point;
float (*diff_points)[2];
unsigned int tot_feather_point;
float (*feather_points)[2];
diff_points = BKE_mask_spline_differentiate_with_resolution_ex(spline, &tot_diff_point, resol);
if (!diff_points)
return;
if (is_smooth) {
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
feather_points = BKE_mask_spline_feather_differentiated_points_with_resolution_ex(spline, &tot_feather_point, resol, (is_fill != FALSE));
/* draw feather */
mask_spline_feather_color_get(masklay, spline, is_spline_sel, rgb_tmp);
mask_draw_curve_type(C, spline, feather_points, tot_feather_point,
TRUE, is_smooth, is_active,
rgb_tmp, draw_type);
if (!is_fill) {
float *fp = &diff_points[0][0];
float *fp_feather = &feather_points[0][0];
float tvec[2];
int i;
BLI_assert(tot_diff_point == tot_feather_point);
for (i = 0; i < tot_diff_point; i++, fp += 2, fp_feather += 2) {
sub_v2_v2v2(tvec, fp, fp_feather);
add_v2_v2v2(fp_feather, fp, tvec);
}
/* same as above */
mask_draw_curve_type(C, spline, feather_points, tot_feather_point,
TRUE, is_smooth, is_active,
rgb_tmp, draw_type);
}
MEM_freeN(feather_points);
/* draw main curve */
mask_spline_color_get(masklay, spline, is_spline_sel, rgb_tmp);
mask_draw_curve_type(C, spline, diff_points, tot_diff_point,
FALSE, is_smooth, is_active,
rgb_tmp, draw_type);
MEM_freeN(diff_points);
if (draw_flag & MASK_DRAWFLAG_SMOOTH) {
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
}
(void)draw_type;
}
static void draw_masklays(const bContext *C, Mask *mask, const char draw_flag, const char draw_type,
int width, int height)
{
MaskLayer *masklay;
int i;
for (masklay = mask->masklayers.first, i = 0; masklay; masklay = masklay->next, i++) {
MaskSpline *spline;
const short is_active = (i == mask->masklay_act);
if (masklay->restrictflag & MASK_RESTRICT_VIEW) {
continue;
}
for (spline = masklay->splines.first; spline; spline = spline->next) {
/* draw curve itself first... */
draw_spline_curve(C, masklay, spline, draw_flag, draw_type, is_active, width, height);
// draw_spline_parents(masklay, spline);
if (!(masklay->restrictflag & MASK_RESTRICT_SELECT)) {
/* ...and then handles over the curve so they're nicely visible */
draw_spline_points(C, masklay, spline, draw_flag, draw_type);
}
/* show undeform for testing */
if (0) {
void *back = spline->points_deform;
spline->points_deform = NULL;
draw_spline_curve(C, masklay, spline, draw_flag, draw_type, is_active, width, height);
// draw_spline_parents(masklay, spline);
draw_spline_points(C, masklay, spline, draw_flag, draw_type);
spline->points_deform = back;
}
}
}
}
void ED_mask_draw(const bContext *C,
const char draw_flag, const char draw_type)
{
ScrArea *sa = CTX_wm_area(C);
Mask *mask = CTX_data_edit_mask(C);
int width, height;
if (!mask)
return;
ED_mask_get_size(sa, &width, &height);
draw_masklays(C, mask, draw_flag, draw_type, width, height);
}
/* sets up the opengl context.
* width, height are to match the values from ED_mask_get_size() */
void ED_mask_draw_region(Mask *mask, ARegion *ar,
const char draw_flag, const char draw_type,
const int width_i, const int height_i, /* convert directly into aspect corrected vars */
const float aspx, const float aspy,
const short do_scale_applied, const short do_draw_cb,
float stabmat[4][4], /* optional - only used by clip */
const bContext *C /* optional - only used when do_post_draw is set or called from clip editor */
)
{
struct View2D *v2d = &ar->v2d;
/* aspect always scales vertically in movie and image spaces */
const float width = width_i, height = (float)height_i * (aspy / aspx);
int x, y;
/* int w, h; */
float zoomx, zoomy;
/* frame image */
float maxdim;
float xofs, yofs;
/* find window pixel coordinates of origin */
UI_view2d_to_region_no_clip(&ar->v2d, 0.0f, 0.0f, &x, &y);
/* w = BLI_rctf_size_x(&v2d->tot); */
/* h = BLI_rctf_size_y(&v2d->tot);/*/
zoomx = (float)(BLI_rcti_size_x(&ar->winrct) + 1) / BLI_rctf_size_x(&ar->v2d.cur);
zoomy = (float)(BLI_rcti_size_y(&ar->winrct) + 1) / BLI_rctf_size_y(&ar->v2d.cur);
if (do_scale_applied) {
zoomx /= width;
zoomy /= height;
}
x += v2d->tot.xmin * zoomx;
y += v2d->tot.ymin * zoomy;
/* frame the image */
maxdim = max_ff(width, height);
if (width == height) {
xofs = yofs = 0;
}
else if (width < height) {
xofs = ((height - width) / -2.0f) * zoomx;
yofs = 0.0f;
}
else { /* (width > height) */
xofs = 0.0f;
yofs = ((width - height) / -2.0f) * zoomy;
}
/* apply transformation so mask editing tools will assume drawing from the origin in normalized space */
glPushMatrix();
glTranslatef(x + xofs, y + yofs, 0);
glScalef(maxdim * zoomx, maxdim * zoomy, 0);
if (stabmat) {
glMultMatrixf(stabmat);
}
if (do_draw_cb) {
ED_region_draw_cb_draw(C, ar, REGION_DRAW_PRE_VIEW);
}
/* draw! */
draw_masklays(C, mask, draw_flag, draw_type, width, height);
if (do_draw_cb) {
ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
}
glPopMatrix();
}
void ED_mask_draw_frames(Mask *mask, ARegion *ar, const int cfra, const int sfra, const int efra)
{
const float framelen = ar->winx / (float)(efra - sfra + 1);
MaskLayer *masklay = BKE_mask_layer_active(mask);
glBegin(GL_LINES);
glColor4ub(255, 175, 0, 255);
if (masklay) {
MaskLayerShape *masklay_shape;
for (masklay_shape = masklay->splines_shapes.first;
masklay_shape;
masklay_shape = masklay_shape->next)
{
int frame = masklay_shape->frame;
/* draw_keyframe(i, CFRA, sfra, framelen, 1); */
int height = (frame == cfra) ? 22 : 10;
int x = (frame - sfra) * framelen;
glVertex2i(x, 0);
glVertex2i(x, height);
}
}
glEnd();
}
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