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);
}
void ED_mask_draw(const bContext *C,
const char draw_flag, const char draw_type)
{
ScrArea *sa = CTX_wm_area(C);
ARegion *ar = CTX_wm_region(C);
Mask *mask = CTX_data_edit_mask(C);
int width, height;
float aspx, aspy;
float xscale, yscale;
if (!mask)
return;
ED_mask_get_size(sa, &width, &height);
ED_mask_get_aspect(sa, ar, &aspx, &aspy);
UI_view2d_scale_get(&ar->v2d, &xscale, &yscale);
draw_masklays(C, mask, draw_flag, draw_type, width, height, xscale * aspx, yscale * aspy);
}
/* 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 char overlay_mode,
const int width_i, const int height_i, /* convert directly into aspect corrected vars */
const float aspx, const float aspy,
const bool do_scale_applied, const bool 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_view_to_region(&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;
}
if (draw_flag & MASK_DRAWFLAG_OVERLAY) {
float *buffer = threaded_mask_rasterize(mask, width, height);
int format;
if (overlay_mode == MASK_OVERLAY_ALPHACHANNEL) {
glColor3f(1.0f, 1.0f, 1.0f);
format = GL_LUMINANCE;
}
else {
/* More blending types could be supported in the future. */
glEnable(GL_BLEND);
glBlendFunc(GL_DST_COLOR, GL_SRC_ALPHA);
format = GL_ALPHA;
}
glPushMatrix();
glTranslatef(x, y, 0);
glScalef(zoomx, zoomy, 0);
if (stabmat) {
glMultMatrixf(stabmat);
}
glaDrawPixelsTex(0.0f, 0.0f, width, height, format, GL_FLOAT, GL_NEAREST, buffer);
glPopMatrix();
if (overlay_mode != MASK_OVERLAY_ALPHACHANNEL) {
glDisable(GL_BLEND);
}
MEM_freeN(buffer);
}
/* apply transformation so mask editing tools will assume drawing from the origin in normalized space */
glPushMatrix();
if (stabmat) {
glMultMatrixf(stabmat);
}
glTranslatef(x + xofs, y + yofs, 0);
glScalef(maxdim * zoomx, maxdim * zoomy, 0);
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, maxdim * zoomx, maxdim * zoomy);
if (do_draw_cb) {
ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
}
glPopMatrix();
}
