GPU/HW: Simplify 24-bit scanout and interlacing shader

Has the added bonus of being faster (no downscale copy) and fixes the
edge case where the image is cropped in VRAM.
This commit is contained in:
Connor McLaughlin
2020-04-02 00:17:25 +10:00
parent 1d948a53e0
commit 2a6e04988f
5 changed files with 75 additions and 185 deletions

View File

@ -440,10 +440,6 @@ void GPU::UpdateCRTCDisplayParameters()
cs.display_vram_left = std::min<u16>(
m_crtc_state.regs.X + ((horizontal_display_start_tick - cs.horizontal_display_start) / cs.dot_clock_divider),
VRAM_WIDTH - 1);
// for 24-bit scanout we must stay aligned
if (m_GPUSTAT.display_area_color_depth_24 && ((cs.display_vram_left - cs.regs.X) & 1u))
cs.display_vram_left--;
}
if (cs.horizontal_display_end <= horizontal_display_end_tick)