util: Move os_misc to util

[mesa.git] / src / gallium / auxiliary / util / u_format.h

diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index d0557785f93b9263a370836695f14221a16f565f..e66849c16b1589555a385726a713d077d1ef5d16 100644 (file)
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -495,6 +495,19 @@ util_format_is_s3tc(enum pipe_format format)
    return desc->layout == UTIL_FORMAT_LAYOUT_S3TC ? TRUE : FALSE;
 }
 
+static inline boolean
+util_format_is_etc(enum pipe_format format)
+{
+   const struct util_format_description *desc = util_format_description(format);
+
+   assert(desc);
+   if (!desc) {
+      return FALSE;
+   }
+
+   return desc->layout == UTIL_FORMAT_LAYOUT_ETC ? TRUE : FALSE;
+}
+
 static inline boolean 
 util_format_is_srgb(enum pipe_format format)
 {
@@ -544,6 +557,39 @@ util_format_is_depth_and_stencil(enum pipe_format format)
           util_format_has_stencil(desc);
 }
 
+/**
+ * For depth-stencil formats, return the equivalent depth-only format.
+ */
+static inline boolean
+util_format_get_depth_only(enum pipe_format format)
+{
+   switch (format) {
+   case PIPE_FORMAT_Z24_UNORM_S8_UINT:
+      return PIPE_FORMAT_Z24X8_UNORM;
+
+   case PIPE_FORMAT_S8_UINT_Z24_UNORM:
+      return PIPE_FORMAT_X8Z24_UNORM;
+
+   case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
+      return PIPE_FORMAT_Z32_FLOAT;
+
+   default:
+      return format;
+   }
+}
+
+static inline boolean
+util_format_is_yuv(enum pipe_format format)
+{
+   const struct util_format_description *desc = util_format_description(format);
+
+   assert(desc);
+   if (!desc) {
+      return FALSE;
+   }
+
+   return desc->colorspace == UTIL_FORMAT_COLORSPACE_YUV;
+}
 
 /**
  * Calculates the depth format type based upon the incoming format description.
@@ -692,13 +738,6 @@ boolean
 util_is_format_compatible(const struct util_format_description *src_desc,
                           const struct util_format_description *dst_desc);
 
-/**
- * Whether the format is supported by Gallium for the given bindings.
- * This covers S3TC textures and floating-point render targets.
- */
-boolean
-util_format_is_supported(enum pipe_format format, unsigned bind);
-
 /**
  * Whether this format is a rgab8 variant.
  *