Mercurial > repos > blastem
changeset 1343:033dda2d4598
Fix transition from active to inactive display
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Thu, 04 May 2017 22:47:51 -0700 |
parents | 4ea094d15cce |
children | 6372de4da179 |
files | vdp.c vdp.h |
diffstat | 2 files changed, 13 insertions(+), 2 deletions(-) [+] |
line wrap: on
line diff
--- a/vdp.c Thu May 04 22:14:12 2017 -0700 +++ b/vdp.c Thu May 04 22:47:51 2017 -0700 @@ -1541,6 +1541,7 @@ } } } + context->done_output = dst; context->buf_a_off = (context->buf_a_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; context->buf_b_off = (context->buf_b_off + SCROLL_BUFFER_DRAW) & SCROLL_BUFFER_MASK; } @@ -1735,6 +1736,7 @@ output_line = INVALID_LINE; } context->output = (uint32_t *)(((char *)context->fb) + context->output_pitch * output_line); + context->done_output = context->output; #ifdef DEBUG_FB_FILL for (int i = 0; i < LINEBUF_SIZE; i++) { @@ -2710,8 +2712,16 @@ } else if (context->regs[REG_MODE_1] & BIT_MODE_4) { bg_color = context->colors[CRAM_SIZE * 3 + 0x10 + (context->regs[REG_BG_COLOR] & 0xF)]; } - *(dst++) = bg_color; - *(dst++) = bg_color; + if (dst >= context->done_output) { + *(dst++) = bg_color; + } else { + dst++; + } + if (dst >= context->done_output) { + *(dst++) = bg_color; + } else { + dst++; + } if (context->hslot == (bg_end_slot-1)) { *(dst++) = bg_color; }