diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_tex_layout.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c index 1d2e953eb1..5e4f7fd27b 100644 --- a/src/mesa/drivers/dri/i965/brw_tex_layout.c +++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c @@ -194,6 +194,16 @@ GLboolean brw_miptree_layout(struct intel_context *intel, } } + /* The 965's sampler lays cachelines out according to how accesses + * in the texture surfaces run, so they may be "vertical" through + * memory. As a result, the docs say in Surface Padding Requirements: + * Sampling Engine Surfaces that two extra rows of padding are required. + * We don't know of similar requirements for pre-965, but given that + * those docs are silent on padding requirements in general, let's play + * it safe. + */ + if (mt->target == GL_TEXTURE_CUBE_MAP) + total_height += 2; break; } |