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HiresTextures: Move the maximum mip level check from DDS to main loader

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This way that the mip count check occurs on .png and uncombined DDS
textures as well.
This commit is contained in:
Stenzek
2017-04-21 19:53:03 +10:00
parent a6a13f51c1
commit 20cbef8e9f
3 changed files with 48 additions and 41 deletions
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32
Source/Core/VideoCommon/HiresTextures_DDSLoader.cpp
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@ -172,21 +172,6 @@ static u32 GetBlockCount(u32 extent, u32 block_size)
return std::max(Common::AlignUp(extent, block_size) / block_size, 1u);
}
static u32 CalculateMipCount(u32 width, u32 height)
{
u32 mip_width = std::max(width / 2, 1u);
u32 mip_height = std::max(height / 2, 1u);
u32 mip_count = 1;
while (mip_width > 1 || mip_height > 1)
{
mip_width = std::max(mip_width / 2, 1u);
mip_height = std::max(mip_height / 2, 1u);
mip_count++;
}
return mip_count;
}
static bool ParseDDSHeader(File::IOFile& file, DDSLoadInfo* info)
{
// Exit as early as possible for non-DDS textures, since all extensions are currently
@ -217,13 +202,11 @@ static bool ParseDDSHeader(File::IOFile& file, DDSLoadInfo* info)
// Check for mip levels.
if (header.dwFlags & DDS_HEADER_FLAGS_MIPMAP)
{
// Miplevels = 0 means full mip chain?
// Some files may specify a number too large here, which doesn't play well with the backends.
info->mip_count = header.dwMipMapCount;
if (info->mip_count != 0)
info->mip_count = std::min(info->mip_count, CalculateMipCount(info->width, info->height));
if (header.dwMipMapCount != 0)
info->mip_count = header.dwMipMapCount;
else
info->mip_count = CalculateMipCount(info->width, info->height);
info->mip_count = HiresTexture::CalculateMipCount(info->width, info->height);
}
else
{
@ -372,10 +355,13 @@ bool HiresTexture::LoadDDSTexture(HiresTexture* tex, const std::string& filename
// Read in any remaining mip levels in the file.
// If the .dds file does not contain a full mip chain, we'll fall back to the old path.
u32 mip_width = std::max(info.width / 2, 1u);
u32 mip_height = std::max(info.height / 2, 1u);
u32 mip_width = info.width;
u32 mip_height = info.height;
for (u32 i = 1; i < info.mip_count; i++)
{
mip_width = std::max(mip_width / 2, 1u);
mip_height = std::max(mip_height / 2, 1u);
// Pitch can't be specified with each mip level, so we have to calculate it ourselves.
u32 blocks_wide = GetBlockCount(mip_width, info.block_size);
u32 blocks_high = GetBlockCount(mip_height, info.block_size);
@ -386,8 +372,6 @@ bool HiresTexture::LoadDDSTexture(HiresTexture* tex, const std::string& filename
break;
tex->m_levels.push_back(std::move(level));
mip_width = std::max(mip_width / 2, 1u);
mip_height = std::max(mip_height / 2, 1u);
}
return true;