141     int x, y, d, dx;  in tight_detect_smooth_image24()  local
163             for (dx = 1; dx <= VNC_TIGHT_DETECT_SUBROW_WIDTH; dx++) {  in tight_detect_smooth_image24()
165                     pix = buf[((y+d)*w+x+d+dx)*4+off+c] & 0xFF;  in tight_detect_smooth_image24()
212         int x, y, d, dx;                                                \
243                 for (dx = 1; dx <= VNC_TIGHT_DETECT_SUBROW_WIDTH;       \
244                      dx++) {                                            \
245                     pix = ((uint##bpp##_t *)buf)[(y+d)*w+x+d+dx];       \
682     int dx, dy;  in check_solid_tile32()  local
692         for (dx = 0; dx < w; dx++) {  in check_solid_tile32()
693             if (c != fbptr[dx]) {  in check_solid_tile32()
715     int dx, dy, dw, dh;  in find_best_solid_area()  local
730         for (dx = x + dw; dx < x + w_prev;) {  in find_best_solid_area()
731             dw = MIN(VNC_TIGHT_MAX_SPLIT_TILE_SIZE, x + w_prev - dx);  in find_best_solid_area()
733             if (!check_solid_tile(vs, dx, dy, dw, dh, &color, true)) {  in find_best_solid_area()
736             dx += dw;  in find_best_solid_area()
739         w_prev = dx - x;  in find_best_solid_area()
1548     int dx, dy;  in send_rect_simple()  local
1560             for (dx = 0; dx < w; dx += max_width) {  in send_rect_simple()
1561                 rw = MIN(max_sub_width, w - dx);  in send_rect_simple()
1563                 n += send_sub_rect(vs, x+dx, y+dy, rw, rh);  in send_rect_simple()
1576     int dx, dy, dw, dh;  in find_large_solid_color_rect()  local
1593         for (dx = x; dx < x + w; dx += VNC_TIGHT_MAX_SPLIT_TILE_SIZE) {  in find_large_solid_color_rect()
1597             dw = MIN(VNC_TIGHT_MAX_SPLIT_TILE_SIZE, (x + w - dx));  in find_large_solid_color_rect()
1599             if (!check_solid_tile(vs, dx, dy, dw, dh, &color_value, false)) {  in find_large_solid_color_rect()
1605             find_best_solid_area(vs, dx, dy, w - (dx - x), h - (dy - y),  in find_large_solid_color_rect()
1618             x_best = dx; y_best = dy;  in find_large_solid_color_rect()