fixed rendering off by one

This commit is contained in:
Lior Halphon 2018-03-03 19:52:48 +02:00
parent 496c5589e6
commit 518746f664

View File

@ -582,7 +582,7 @@ void GB_display_run(GB_gameboy_t *gb, uint8_t cycles)
gb->fetcher_x = 0; gb->fetcher_x = 0;
gb->fetcher_state = GB_FETCHER_GET_TILE; gb->fetcher_state = GB_FETCHER_GET_TILE;
} }
bool push = false;
if (gb->fetcher_divisor) { if (gb->fetcher_divisor) {
switch (gb->fetcher_state) { switch (gb->fetcher_state) {
case GB_FETCHER_GET_TILE: { case GB_FETCHER_GET_TILE: {
@ -618,8 +618,7 @@ void GB_display_run(GB_gameboy_t *gb, uint8_t cycles)
break; break;
case GB_FETCHER_SLEEP: case GB_FETCHER_SLEEP:
fifo_push_bg_row(&gb->bg_fifo, gb->current_tile_data[0], gb->current_tile_data[1], 0, false); push = true;
gb->fifo_paused = false;
break; break;
} }
gb->fetcher_state++; gb->fetcher_state++;
@ -628,6 +627,10 @@ void GB_display_run(GB_gameboy_t *gb, uint8_t cycles)
gb->fetcher_divisor ^= true; gb->fetcher_divisor ^= true;
render_pixel_if_possible(gb); render_pixel_if_possible(gb);
if (push) {
fifo_push_bg_row(&gb->bg_fifo, gb->current_tile_data[0], gb->current_tile_data[1], 0, false);
gb->fifo_paused = false;
}
if (gb->position_in_line == 160) break; if (gb->position_in_line == 160) break;
else if (gb->position_in_line == 159) { else if (gb->position_in_line == 159) {
gb->io_registers[GB_IO_STAT] &= ~3; gb->io_registers[GB_IO_STAT] &= ~3;