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radeon: Memory footprint of SI mipmap base level is padded to powers of two.

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Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Michel Dänzer 2012-09-04 18:53:55 +02:00 • committed by Michel Dänzer
parent 8572444fd0
commit 45083e6d36
1 changed files with 10 additions and 3 deletions
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13
radeon/radeon_surface.c
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@ -963,9 +963,16 @@ static void si_surf_minify_linear_aligned(struct radeon_surface *surf,
surf->level[level].npix_x = mip_minify(surf->npix_x, level);
surf->level[level].npix_y = mip_minify(surf->npix_y, level);
surf->level[level].npix_z = mip_minify(surf->npix_z, level);
surf->level[level].nblk_x = (surf->level[level].npix_x + surf->blk_w - 1) / surf->blk_w;
surf->level[level].nblk_y = (surf->level[level].npix_y + surf->blk_h - 1) / surf->blk_h;
surf->level[level].nblk_z = (surf->level[level].npix_z + surf->blk_d - 1) / surf->blk_d;
if (level == 0 && surf->last_level > 0) {
surf->level[level].nblk_x = (next_power_of_two(surf->level[level].npix_x) + surf->blk_w - 1) / surf->blk_w;
surf->level[level].nblk_y = (next_power_of_two(surf->level[level].npix_y) + surf->blk_h - 1) / surf->blk_h;
surf->level[level].nblk_z = (next_power_of_two(surf->level[level].npix_z) + surf->blk_d - 1) / surf->blk_d;
} else {
surf->level[level].nblk_x = (surf->level[level].npix_x + surf->blk_w - 1) / surf->blk_w;
surf->level[level].nblk_y = (surf->level[level].npix_y + surf->blk_h - 1) / surf->blk_h;
surf->level[level].nblk_z = (surf->level[level].npix_z + surf->blk_d - 1) / surf->blk_d;
}
/* XXX: Second smallest level uses larger pitch, not sure of the real reason,
* my best guess so far: rows evenly distributed across slice