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MGA: Do not reset DWORD expected counter while SOFTRAP read is still pending

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Fixes Matrox Simple Interface games without breaking Windows 2000 drivers
This commit is contained in:
Cacodemon345
2024-01-13 13:38:19 +06:00
parent 996530a94e
commit 2390d2d2ae
1 changed files with 4 additions and 1 deletions
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5
src/video/vid_mga.c
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@@ -2186,7 +2186,10 @@ mystique_ctrl_write_b(uint32_t addr, uint8_t val, void *priv)
thread_wait_mutex(mystique->dma.lock);
WRITE8(addr, mystique->dma.primaddress, val);
mystique->dma.pri_state = 0;
mystique->dma.words_expected = 0;
if (mystique->dma.state == DMA_STATE_IDLE && !(mystique->softrap_pending || mystique->endprdmasts_pending || !mystique->softrap_status_read)) {
mystique->dma.words_expected = 0;
}
mystique->dma.state = DMA_STATE_IDLE;
thread_release_mutex(mystique->dma.lock);
break;