mesa: pass gl_format to _mesa_init_teximage_fields()

This should prevent the field going unset in the future.  See bug
http://bugs.freedesktop.org/show_bug.cgi?id=31544 for background.

Also remove unneeded calls to clear_teximage_fields().

Finally, call _mesa_set_fetch_functions() from the
_mesa_init_teximage_fields() function so callers have one less
thing to worry about.

1 files changed, 3 insertions, 9 deletions

diff --git a/src/mesa/main/texfetch.c b/src/mesa/main/texfetch.c
index aa3a6961b64..372ef2654a7 100644
--- a/src/mesa/main/texfetch.c
+++ b/src/mesa/main/texfetch.c
@@ -823,17 +823,11 @@ void
 _mesa_set_fetch_functions(struct gl_texture_image *texImage, GLuint dims)
 {
    ASSERT(dims == 1 || dims == 2 || dims == 3);
-   ASSERT(texImage->TexFormat);
 
-   if (!texImage->FetchTexelf) {
-      texImage->FetchTexelf =
-         _mesa_get_texel_fetch_func(texImage->TexFormat, dims);
-   }
+   texImage->FetchTexelf =
+      _mesa_get_texel_fetch_func(texImage->TexFormat, dims);
 
-   /* now check if we need to use a float/chan adaptor */
-   if (!texImage->FetchTexelc) {
-      texImage->FetchTexelc = fetch_texel_float_to_chan;
-   }
+   texImage->FetchTexelc = fetch_texel_float_to_chan;
 
    ASSERT(texImage->FetchTexelc);
    ASSERT(texImage->FetchTexelf);