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authorJosé Fonseca <[email protected]>2011-09-21 11:15:10 -0600
committerBrian Paul <[email protected]>2011-09-22 08:26:36 -0600
commitffb1996f614679553ef1d029306d0194b3161113 (patch)
tree4f19458e7d21473123ba9783d643b33687c496fb /src/gallium
parentc40c1599bb7782808a1387663d69cc9f99f4c68f (diff)
util: Allow to make the depth/stencil format queries without repeatedly looking up the format description.
All functions here should take struct util_format_description * IMO, to incentive efficient code.
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/auxiliary/util/u_format.h29
1 files changed, 20 insertions, 9 deletions
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index 2eb3e1b80a2..964f19c3a2e 100644
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -410,7 +410,21 @@ util_format_is_s3tc(enum pipe_format format)
return desc->layout == UTIL_FORMAT_LAYOUT_S3TC ? TRUE : FALSE;
}
-static INLINE boolean
+static INLINE boolean
+util_format_has_depth(const struct util_format_description *desc)
+{
+ return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS &&
+ desc->swizzle[0] != UTIL_FORMAT_SWIZZLE_NONE;
+}
+
+static INLINE boolean
+util_format_has_stencil(const struct util_format_description *desc)
+{
+ return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS &&
+ desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE;
+}
+
+static INLINE boolean
util_format_is_depth_or_stencil(enum pipe_format format)
{
const struct util_format_description *desc = util_format_description(format);
@@ -420,10 +434,11 @@ util_format_is_depth_or_stencil(enum pipe_format format)
return FALSE;
}
- return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ? TRUE : FALSE;
+ return util_format_has_depth(desc) ||
+ util_format_has_stencil(desc);
}
-static INLINE boolean
+static INLINE boolean
util_format_is_depth_and_stencil(enum pipe_format format)
{
const struct util_format_description *desc = util_format_description(format);
@@ -433,12 +448,8 @@ util_format_is_depth_and_stencil(enum pipe_format format)
return FALSE;
}
- if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) {
- return FALSE;
- }
-
- return (desc->swizzle[0] != UTIL_FORMAT_SWIZZLE_NONE &&
- desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE) ? TRUE : FALSE;
+ return util_format_has_depth(desc) &&
+ util_format_has_stencil(desc);
}