+void BlitScreenToBitmap(Bitmap *target_bitmap)
+{
+ DrawBuffer *buffer = (drawto_field == window ? backbuffer : drawto_field);
+ int fx = FX, fy = FY;
+
+#if NEW_TILESIZE
+ int dx = (ScreenMovDir & (MV_LEFT | MV_RIGHT) ? ScreenGfxPos : 0);
+ int dy = (ScreenMovDir & (MV_UP | MV_DOWN) ? ScreenGfxPos : 0);
+ int dx_var = dx * TILESIZE_VAR / TILESIZE;
+ int dy_var = dy * TILESIZE_VAR / TILESIZE;
+ int ffx, ffy;
+
+ // fx += dx * TILESIZE_VAR / TILESIZE;
+ // fy += dy * TILESIZE_VAR / TILESIZE;
+#else
+ fx += (ScreenMovDir & (MV_LEFT | MV_RIGHT) ? ScreenGfxPos : 0);
+ fy += (ScreenMovDir & (MV_UP | MV_DOWN) ? ScreenGfxPos : 0);
+#endif
+
+ ffx = (scroll_x - SBX_Left) * TILEX_VAR + dx_var;
+ ffy = (scroll_y - SBY_Upper) * TILEY_VAR + dy_var;
+
+ if (EVEN(SCR_FIELDX))
+ {
+ if (ffx < SBX_Right * TILEX_VAR + TILEX_VAR / 2 + TILEX_VAR)
+ fx += dx_var - MIN(ffx, TILEX_VAR / 2) + TILEX_VAR;
+ else
+ fx += (dx_var > 0 ? TILEX_VAR : 0);
+ }
+ else
+ {
+ fx += dx_var;
+ }
+
+ if (EVEN(SCR_FIELDY))
+ {
+ if (ffy < SBY_Lower * TILEY_VAR + TILEY_VAR / 2 + TILEY_VAR)
+ fy += dy_var - MIN(ffy, TILEY_VAR / 2) + TILEY_VAR;
+ else
+ fy += (dy_var > 0 ? TILEY_VAR : 0);
+ }
+ else
+ {
+ fy += dy_var;
+ }
+
+#if 0
+ printf("::: (%d, %d) [(%d / %d, %d / %d)] => %d, %d\n",
+ scroll_x, scroll_y,
+ SBX_Left, SBX_Right,
+ SBY_Upper, SBY_Lower,
+ fx, fy);
+#endif
+
+ if (border.draw_masked[GAME_MODE_PLAYING])
+ {
+ if (buffer != backbuffer)
+ {
+ /* copy playfield buffer to backbuffer to add masked border */
+ BlitBitmap(buffer, backbuffer, fx, fy, SXSIZE, SYSIZE, SX, SY);
+ DrawMaskedBorder(REDRAW_FIELD);
+ }
+
+ BlitBitmap(backbuffer, target_bitmap,
+ REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
+ REAL_SX, REAL_SY);
+ }
+ else
+ {
+ BlitBitmap(buffer, target_bitmap, fx, fy, SXSIZE, SYSIZE, SX, SY);
+ }
+}
+