[Mesa-dev] [PATCH 2/4] util/u_format: Kill util_format_is_array().

[jfonseca at vmware.com]

From: José Fonseca <jfonseca at vmware.com>

It is buggy (it was giving wrong results for some of the formats with
padding), and util_format_description::is_array already does precisely
what's intended.
---
 src/gallium/auxiliary/gallivm/lp_bld_format_aos.c |    3 +-
 src/gallium/auxiliary/gallivm/lp_bld_type.h       |    3 +-
 src/gallium/auxiliary/util/u_format.c             |   41 ---------------------
 3 files changed, 4 insertions(+), 43 deletions(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c
index 9591bcf..644d403 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_format_aos.c
@@ -471,7 +471,8 @@ lp_build_fetch_rgba_aos(struct gallivm_state *gallivm,
    }
 
    /* If all channels are of same type and we are not using half-floats */
-   if (util_format_is_array(format_desc)) {
+   if (format_desc->is_array) {
+      assert(!format_desc->is_mixed);
       return lp_build_fetch_rgba_aos_array(gallivm, format_desc, type, base_ptr, offset);
    }
 
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_type.h b/src/gallium/auxiliary/gallivm/lp_bld_type.h
index 6ce5501..d0b490b 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_type.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_type.h
@@ -176,7 +176,8 @@ struct lp_build_context
 static INLINE void
 lp_type_from_format_desc(struct lp_type* type, const struct util_format_description *format_desc)
 {
-   assert(util_format_is_array(format_desc));
+   assert(format_desc->is_array);
+   assert(!format_desc->is_mixed);
 
    memset(type, 0, sizeof(struct lp_type));
    type->floating = format_desc->channel[0].type == UTIL_FORMAT_TYPE_FLOAT;
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c
index ddce956..8228de1 100644
--- a/src/gallium/auxiliary/util/u_format.c
+++ b/src/gallium/auxiliary/util/u_format.c
@@ -134,47 +134,6 @@ util_format_is_pure_uint(enum pipe_format format)
    return (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED && desc->channel[i].pure_integer) ? TRUE : FALSE;
 }
 
-boolean
-util_format_is_array(const struct util_format_description *desc)
-{
-   unsigned chan;
-
-   if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN ||
-       desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB ||
-       desc->block.width != 1 ||
-       desc->block.height != 1) {
-      return FALSE;
-   }
-
-   for (chan = 0; chan < desc->nr_channels; ++chan) {
-      if (desc->channel[chan].size != desc->channel[0].size)
-         return FALSE;
-
-      if (desc->channel[chan].type == UTIL_FORMAT_TYPE_VOID && (chan + 1) == desc->nr_channels)
-         continue;
-
-      if (desc->channel[chan].type != desc->channel[0].type)
-         return FALSE;
-
-      if (desc->channel[chan].normalized != desc->channel[0].normalized)
-         return FALSE;
-
-      if (desc->channel[chan].pure_integer != desc->channel[0].pure_integer)
-         return FALSE;
-   }
-
-   if (desc->nr_channels == 4) {
-      if (desc->swizzle[3] < 3)
-         return FALSE;
-   } else {
-      for (chan = 0; chan < desc->nr_channels; ++chan) {
-         if (desc->swizzle[chan] != chan)
-            return FALSE;
-      }
-   }
-
-   return TRUE;
-}
 
 boolean
 util_format_is_luminance_alpha(enum pipe_format format)
-- 
1.7.9.5