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GPU: Adjust visible ticks/lines, fix underflow in height

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This commit is contained in:
Connor McLaughlin 2020-03-31 22:28:37 +10:00
parent 6bc91f2157
commit 8439e1c54e
1 changed files with 9 additions and 9 deletions
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18
src/core/gpu.cpp
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@ -371,15 +371,15 @@ void GPU::UpdateCRTCDisplayParameters()
case DisplayCropMode::None: case DisplayCropMode::None:
horizontal_display_start_tick = 487; horizontal_display_start_tick = 487;
horizontal_display_end_tick = 3282; horizontal_display_end_tick = 3282;
vertical_display_start_line = 12; vertical_display_start_line = 20;
vertical_display_end_line = 312; vertical_display_end_line = 308;
break; break;
case DisplayCropMode::Overscan: case DisplayCropMode::Overscan:
horizontal_display_start_tick = 628; horizontal_display_start_tick = 628;
horizontal_display_end_tick = 3188; horizontal_display_end_tick = 3188;
vertical_display_start_line = 19; vertical_display_start_line = 30;
vertical_display_end_line = 307; vertical_display_end_line = 298;
break; break;
case DisplayCropMode::Borders: case DisplayCropMode::Borders:
@ -398,15 +398,15 @@ void GPU::UpdateCRTCDisplayParameters()
case DisplayCropMode::None: case DisplayCropMode::None:
horizontal_display_start_tick = 488; horizontal_display_start_tick = 488;
horizontal_display_end_tick = 3288; horizontal_display_end_tick = 3288;
vertical_display_start_line = 8; vertical_display_start_line = 16;
vertical_display_end_line = 260; vertical_display_end_line = 256;
break; break;
case DisplayCropMode::Overscan: case DisplayCropMode::Overscan:
horizontal_display_start_tick = 608; horizontal_display_start_tick = 608;
horizontal_display_end_tick = 3168; horizontal_display_end_tick = 3168;
vertical_display_start_line = 16; vertical_display_start_line = 24;
vertical_display_end_line = 256; vertical_display_end_line = 248;
break; break;
case DisplayCropMode::Borders: case DisplayCropMode::Borders:
@ -476,7 +476,7 @@ void GPU::UpdateCRTCDisplayParameters()
{ {
cs.display_origin_top = 0; cs.display_origin_top = 0;
cs.display_vram_top = cs.display_vram_top =
std::min<u16>(m_crtc_state.regs.Y + ((cs.vertical_display_start - vertical_display_start_line) << height_shift), std::min<u16>(m_crtc_state.regs.Y + ((vertical_display_start_line - cs.vertical_display_start) << height_shift),
VRAM_HEIGHT - 1); VRAM_HEIGHT - 1);
} }