Mesa (main): lima: handle fp16 vertex formats

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Module: Mesa
Branch: main
Commit: 4a3269dff65e198ac3d493b676800978ce0c01e5
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4a3269dff65e198ac3d493b676800978ce0c01e5

Author: Vasily Khoruzhick <anarsoul at gmail.com>
Date:   Tue Jul 13 23:12:13 2021 -0700

lima: handle fp16 vertex formats

12128fb1351e marked fp16 vertex formats supported, but they aren't actually handled
by lima_pipe_format_to_attrib_type(). Fix it by handling it there.
FP16 seems to be the only missing index which is 0x3.

Fixes: 12128fb1351e ("lima: add natively supported vertex buffer formats")

Cc: 21.1 mesa-stable
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Signed-off-by: Vasily Khoruzhick <anarsoul at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11872>

---

 src/gallium/drivers/lima/lima_draw.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/lima/lima_draw.c b/src/gallium/drivers/lima/lima_draw.c
index 4671683c1af..3d29fcc601b 100644
--- a/src/gallium/drivers/lima/lima_draw.c
+++ b/src/gallium/drivers/lima/lima_draw.c
@@ -195,6 +195,7 @@ enum lima_attrib_type {
    LIMA_ATTRIB_FLOAT = 0x000,
    LIMA_ATTRIB_I32   = 0x001,
    LIMA_ATTRIB_U32   = 0x002,
+   LIMA_ATTRIB_FP16  = 0x003,
    LIMA_ATTRIB_I16   = 0x004,
    LIMA_ATTRIB_U16   = 0x005,
    LIMA_ATTRIB_I8    = 0x006,
@@ -217,7 +218,10 @@ lima_pipe_format_to_attrib_type(enum pipe_format format)
 
    switch (c->type) {
    case UTIL_FORMAT_TYPE_FLOAT:
-      return LIMA_ATTRIB_FLOAT;
+      if (c->size == 16)
+         return LIMA_ATTRIB_FP16;
+      else
+         return LIMA_ATTRIB_FLOAT;
    case UTIL_FORMAT_TYPE_FIXED:
       return LIMA_ATTRIB_FIXED;
    case UTIL_FORMAT_TYPE_SIGNED: