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rsx: Fix mipmap count calculation

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This commit is contained in:
kd-11 2017-03-29 00:32:02 +03:00
parent ad12900397
commit 66835cf083
1 changed files with 10 additions and 5 deletions
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15
rpcs3/Emu/RSX/RSXTexture.cpp
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@ -97,15 +97,18 @@ namespace rsx
u16 fragment_texture::get_exact_mipmap_count() const
{
u16 max_mipmap_count = 1;
if (is_compressed_format())
{
// OpenGL considers that highest mipmap level for DXTC format is when either width or height is 1
// not both. Assume it's the same for others backend.
u16 max_mipmap_count = static_cast<u16>(floor(log2(std::min(width() / 4, height() / 4))) + 1);
return std::min(mipmap(), max_mipmap_count);
max_mipmap_count = static_cast<u16>(floor(log2(std::min(width() / 4, height() / 4))) + 1);
}
u16 max_mipmap_count = static_cast<u16>(floor(log2(std::max(width(), height()))) + 1);
return std::min(mipmap(), max_mipmap_count);
else
max_mipmap_count = static_cast<u16>(floor(log2(std::max(width(), height()))) + 1);
max_mipmap_count = std::min(mipmap(), max_mipmap_count);
return (max_mipmap_count > 0) ? max_mipmap_count : 1;
}
rsx::texture_wrap_mode fragment_texture::wrap_s() const
@ -351,7 +354,9 @@ namespace rsx
u16 vertex_texture::get_exact_mipmap_count() const
{
u16 max_mipmap_count = static_cast<u16>(floor(log2(std::max(width(), height()))) + 1);
return std::min(mipmap(), max_mipmap_count);
max_mipmap_count = std::min(mipmap(), max_mipmap_count);
return (max_mipmap_count > 0) ? max_mipmap_count : 1;
}
u8 vertex_texture::unsigned_remap() const