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swr: [rasterizer memory] minify texture width before alignment

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The minification should happen before alignment, not after. See similar
logic on ComputeLODOffsetY. The current logic requires unnecessarily
large textures when there's an initial NPOT size.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com>
This commit is contained in:
Ilia Mirkin 2016-11-17 22:40:29 -05:00
parent c5a654786b
commit ee0b6597a9
1 changed files with 2 additions and 2 deletions
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4
src/gallium/drivers/swr/rasterizer/memory/TilingFunctions.h
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@ -284,8 +284,8 @@ INLINE void ComputeLODOffset1D(
offset = GFX_ALIGN(curWidth, hAlign);
for (uint32_t l = 1; l < lod; ++l)
{
curWidth = GFX_ALIGN(std::max<uint32_t>(curWidth >> 1, 1U), hAlign);
offset += curWidth;
curWidth = std::max<uint32_t>(curWidth >> 1, 1U);
offset += GFX_ALIGN(curWidth, hAlign);
}
if (info.isSubsampled || info.isBC)