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rsx: Prevent out-of-bounds writes when resolving shader input textures

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- The target area can also have padding!
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kd-11 2019-05-08 17:16:15 +03:00 • committed by kd-11
parent 1c439f6198
commit e02e27b2b3
1 changed files with 9 additions and 2 deletions
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11
rpcs3/Emu/RSX/Common/surface_store.h
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@ -1280,10 +1280,17 @@ namespace rsx
if (LIKELY(this_address >= texaddr)) if (LIKELY(this_address >= texaddr))
{ {
const auto offset = this_address - texaddr; const auto offset = this_address - texaddr;
info.src_x = 0;
info.src_y = 0;
info.dst_y = (offset / required_pitch); info.dst_y = (offset / required_pitch);
info.dst_x = (offset % required_pitch) / required_bpp; info.dst_x = (offset % required_pitch) / required_bpp;
if (UNLIKELY(info.dst_x >= required_width || info.dst_y >= required_height))
{
// Out of bounds
continue;
}
info.src_x = 0;
info.src_y = 0;
info.width = std::min<u32>(normalized_surface_width, required_width - info.dst_x); info.width = std::min<u32>(normalized_surface_width, required_width - info.dst_x);
info.height = std::min<u32>(normalized_surface_height, required_height - info.dst_y); info.height = std::min<u32>(normalized_surface_height, required_height - info.dst_y);
} }