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megaplay.cpp : Fix SMS VDP overlay

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This commit is contained in:
cam900 2019-10-30 10:03:02 +09:00 committed by Vas Crabb
parent 1dd5a9d66f
commit fff889b165
1 changed files with 2 additions and 1 deletions
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3
src/mame/drivers/megaplay.cpp
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@ -637,12 +637,13 @@ uint32_t mplay_state::screen_update_megplay(screen_device &screen, bitmap_rgb32
{
uint32_t* lineptr = &bitmap.pix32(y);
uint32_t* srcptr = &m_vdp1->get_bitmap().pix32(y + sega315_5124_device::TBORDER_START + sega315_5124_device::NTSC_224_TBORDER_HEIGHT, sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH);
uint8_t* y1ptr = &m_vdp1->get_y1_bitmap().pix8(y + sega315_5124_device::TBORDER_START + sega315_5124_device::NTSC_224_TBORDER_HEIGHT, sega315_5124_device::LBORDER_START + sega315_5124_device::LBORDER_WIDTH);
for (int srcx = 0, xx = 0, dstx = 0; srcx < width; dstx++)
{
uint32_t src = srcptr[srcx] & 0xffffff;
if (src)
if (y1ptr[srcx])
{
lineptr[dstx] = src;
}