gallium: Make sure we return is_unorm/is_snorm for compressed formats.

[mesa.git] / src / gallium / auxiliary / util / u_format_parse.py

diff --git a/src/gallium/auxiliary/util/u_format_parse.py b/src/gallium/auxiliary/util/u_format_parse.py
index 48cc012cd2a76e175ece815a37acde2e713c543b..e8a6c92d119b4339d46709f51d438acb6a16569d 100644 (file)
--- a/src/gallium/auxiliary/util/u_format_parse.py
+++ b/src/gallium/auxiliary/util/u_format_parse.py
@@ -187,6 +187,26 @@ class Format:
                     return True
         return False
 
+    def is_compressed(self):
+        for channel in self.le_channels:
+            if channel.type != VOID:
+                return False
+        return True
+
+    def is_unorm(self):
+        # Non-compressed formats all have unorm or srgb in their name.
+        for keyword in ['_UNORM', '_SRGB']:
+            if keyword in self.name:
+                return True
+
+        # All the compressed formats in GLES3.2 and GL4.6 ("Table 8.14: Generic
+        # and specific compressed internal formats.") that aren't snorm for
+        # border colors are unorm, other than BPTC_*_FLOAT.
+        return self.is_compressed() and not ('FLOAT' in self.name or self.is_snorm())
+
+    def is_snorm(self):
+        return '_SNORM' in self.name
+
     def is_pot(self):
         return is_pot(self.block_size())