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GPU: Fix incorrect handling of check mask bit

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Fixes boxes in Silent Hill in Software Renderer.
This commit is contained in:
Connor McLaughlin
2020-03-06 00:29:35 +10:00
parent d46d681179
commit f9a298f1b7
3 changed files with 14 additions and 6 deletions
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4
src/core/gpu.cpp
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@ -870,7 +870,7 @@ void GPU::UpdateVRAM(u32 x, u32 y, u32 width, u32 height, const void* data)
{
// TODO: Handle unaligned reads...
u16* pixel_ptr = &dst_row_ptr[(x + col++) % VRAM_WIDTH];
if (((*pixel_ptr) & mask_and) == mask_and)
if (((*pixel_ptr) & mask_and) == 0)
*pixel_ptr = *(src_ptr++) | mask_or;
}
}
@ -892,7 +892,7 @@ void GPU::CopyVRAM(u32 src_x, u32 src_y, u32 dst_x, u32 dst_y, u32 width, u32 he
{
const u16 src_pixel = src_row_ptr[(src_x + col) % VRAM_WIDTH];
u16* dst_pixel_ptr = &dst_row_ptr[(dst_x + col) % VRAM_WIDTH];
if ((*dst_pixel_ptr & mask_and) == mask_and)
if ((*dst_pixel_ptr & mask_and) == 0)
*dst_pixel_ptr = src_pixel | mask_or;
}
}