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From dfe652d12c62c270e00f093518a05c6966661b8a Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Mon, 6 May 2013 16:04:03 -0400
Subject: [PATCH] mesa: Be less casual about texture formats in
st_finalize_texture
Commit 62452883 removed a hunk like
if (firstImageFormat != stObj->pt->format)
st_view_format = firstImageFormat;
from update_single_texture(). This broke piglit/glx-tfp on AMD Barts
(and probably others), as that hunk was compensating for the mesa and
gallium layers disagreeing about the format.
Fix this by not ignoring the alpha channel in st_finalize_texture when
considering whether two 32-bit formats are sufficiently compatible.
Signed-off-by: Adam Jackson <ajax@redhat.com>
---
src/mesa/state_tracker/st_cb_texture.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 123ed2b..0f2656c 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -1567,7 +1567,7 @@ st_finalize_texture(struct gl_context *ctx,
*/
if (stObj->pt) {
if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
- !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) ||
+ stObj->pt->format != firstImageFormat ||
stObj->pt->last_level < stObj->lastLevel ||
stObj->pt->width0 != ptWidth ||
stObj->pt->height0 != ptHeight ||
--
1.8.2.1
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