From: Dave Airlie <airlied@redhat.com>
Date: Thu, 24 Feb 2011 23:14:53 +0000 (+1000)
Subject: r300g: explicit sign bits on RGTC textures
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=79ad6f5375253faff89bbc7eb6dc5949ba63e0ef;p=mesa.git

r300g: explicit sign bits on RGTC textures
---

diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c
index 354144cac79..2db5ab9a287 100644
--- a/src/gallium/drivers/r300/r300_texture.c
+++ b/src/gallium/drivers/r300/r300_texture.c
@@ -214,11 +214,13 @@ uint32_t r300_translate_texformat(enum pipe_format format,
     /* RGTC formats. */
     if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
         switch (format) {
-            case PIPE_FORMAT_RGTC1_UNORM:
             case PIPE_FORMAT_RGTC1_SNORM:
+                result |= sign_bit[0];
+            case PIPE_FORMAT_RGTC1_UNORM:
                 return R500_TX_FORMAT_ATI1N | result;
-            case PIPE_FORMAT_RGTC2_UNORM:
             case PIPE_FORMAT_RGTC2_SNORM:
+                result |= sign_bit[0] | sign_bit[1];
+            case PIPE_FORMAT_RGTC2_UNORM:
                 return R400_TX_FORMAT_ATI2N | result;
             default:
                 return ~0; /* Unsupported/unknown. */