mesa: rework texture completeness testing

Instead of gl_texture_object::_Complete there are now two fields:
_BaseComplete and _MipmapComplete.  The former indicates whether the base
texture level is valid.  The later indicates whether the whole mipmap is
valid.

With sampler objects, a single texture can appear to be both complete and
incomplete at the same time.  See the GL_ARB_sampler_objects spec for more
details.  To implement this we now check if the texture is complete with
respect to a sampler state.

Another benefit of this is we no longer need to invalidate a texture's
completeness state when we change the minification/magnification filters
with glTexParameter().

Reviewed-by: José Fonseca <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c
index beb9158794e..432db71c8b0 100644
--- a/src/mesa/swrast/s_context.c
+++ b/src/mesa/swrast/s_context.c
@@ -30,6 +30,7 @@
 #include "main/bufferobj.h"
 #include "main/colormac.h"
 #include "main/mtypes.h"
+#include "main/samplerobj.h"
 #include "main/teximage.h"
 #include "program/prog_parameter.h"
 #include "program/prog_statevars.h"
@@ -482,7 +483,9 @@ _swrast_update_texture_samplers(struct gl_context *ctx)
       if (tObj) {
          _mesa_update_fetch_functions(tObj);
       }
-      swrast->TextureSample[u] = _swrast_choose_texture_sample_func(ctx, tObj);
+      swrast->TextureSample[u] =
+         _swrast_choose_texture_sample_func(ctx, tObj,
+                                            _mesa_get_samplerobj(ctx, u));
    }
 }