static void draw_filled_lasso(wmWindow *win, wmGesture *gt)
{
const short *lasso = (short *)gt->customdata;
const int tot = gt->points;
int (*moves)[2] = MEM_mallocN(sizeof(*moves) * (tot + 1), __func__);
int i;
rcti rect;
rcti rect_win;
for (i = 0; i < tot; i++, lasso += 2) {
moves[i][0] = lasso[0];
moves[i][1] = lasso[1];
}
BLI_lasso_boundbox(&rect, (const int (*)[2])moves, tot);
wm_subwindow_rect_get(win, gt->swinid, &rect_win);
BLI_rcti_translate(&rect, rect_win.xmin, rect_win.ymin);
BLI_rcti_isect(&rect_win, &rect, &rect);
BLI_rcti_translate(&rect, -rect_win.xmin, -rect_win.ymin);
/* highly unlikely this will fail, but could crash if (tot == 0) */
if (BLI_rcti_is_empty(&rect) == false) {
const int w = BLI_rcti_size_x(&rect);
const int h = BLI_rcti_size_y(&rect);
unsigned int *pixel_buf = MEM_callocN(sizeof(*pixel_buf) * w * h, __func__);
struct LassoFillData lasso_fill_data = {pixel_buf, w};
fill_poly_v2i_n(
rect.xmin, rect.ymin, rect.xmax, rect.ymax,
(const int (*)[2])moves, tot,
draw_filled_lasso_px_cb, &lasso_fill_data);
glEnable(GL_BLEND);
// glColor4f(1.0, 1.0, 1.0, 0.05);
glRasterPos2f(rect.xmin, rect.ymin);
glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixel_buf);
glDisable(GL_BLEND);
MEM_freeN(pixel_buf);
}
MEM_freeN(moves);
}
float MemoryBuffer::getMaximumValue(rcti *rect)
{
rcti rect_clamp;
/* first clamp the rect by the bounds or we get un-initialized values */
BLI_rcti_isect(rect, &this->m_rect, &rect_clamp);
if (!BLI_rcti_is_empty(&rect_clamp)) {
MemoryBuffer *temp = new MemoryBuffer(NULL, &rect_clamp);
temp->copyContentFrom(this);
float result = temp->getMaximumValue();
delete temp;
return result;
}
else {
BLI_assert(0);
return 0.0f;
}
}