[Mesa-dev] [PATCH] st: Choose a 2101010 format for GL_RGB/GL_RGBA with a 2_10_10_10 type.
Eric Anholt
eric at anholt.net
Wed Apr 25 19:08:35 UTC 2018
GLES's GL_EXT_texture_type_2_10_10_10_REV allows uploading this type to an
unsized internalformat, and it should be non-color-renderable.
fbobject.c's implementation of the check for color-renderable is checks
that the texture has a 2101010 mesa format, so make sure that we have
chosen a 2101010 format so that check can do what it meant to.
Fixes KHR-GLES3.packed_pixels.pbo_rectangle.rgb on vc5.
---
src/mesa/state_tracker/st_format.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/mesa/state_tracker/st_format.c b/src/mesa/state_tracker/st_format.c
index 3db3c7e967c6..418f5342025c 100644
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -2138,6 +2138,19 @@ st_choose_format(struct st_context *st, GLenum internalFormat,
goto success;
}
+ /* For an unsized GL_RGB but a 2_10_10_10 type, try to pick one of the
+ * 2_10_10_10 formats. This is important for
+ * GL_EXT_texture_type_2_10_10_10_EXT support, which says that these
+ * formats are not color-renderable. Mesa's check for making those
+ * non-color-renderable is based on our chosen format being 2101010.
+ */
+ if (type == GL_UNSIGNED_INT_2_10_10_10_REV) {
+ if (internalFormat == GL_RGB)
+ internalFormat = GL_RGB10;
+ else if (internalFormat == GL_RGBA)
+ internalFormat = GL_RGB10_A2;
+ }
+
/* search table for internalFormat */
for (i = 0; i < ARRAY_SIZE(format_map); i++) {
const struct format_mapping *mapping = &format_map[i];
--
2.17.0
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