[gtk/fp16-tests: 1/2] ngl: Make the C half-float implementation accessible

[Matthias Clasen <matthiasc src gnome org>]

commit fc9c34897a1d27eef50cf6ff52276e9be8073019
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jul 13 09:02:35 2021 -0400

    ngl: Make the C half-float implementation accessible
    
    Make this accessible for tests.

 gsk/ngl/fp16.c        | 4 ++--
 gsk/ngl/fp16private.h | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gsk/ngl/fp16.c b/gsk/ngl/fp16.c
index 100d13e997..a1ff1d1af9 100644
--- a/gsk/ngl/fp16.c
+++ b/gsk/ngl/fp16.c
@@ -54,7 +54,7 @@ float_to_half (const float x)
   return (b&0x80000000)>>16 | (e>112)*((((e-112)<<10)&0x7C00)|m>>13) | 
((e<113)&(e>101))*((((0x007FF000+m)>>(125-e))+1)>>1) | (e>143)*0x7FFF; // sign : normalized : denormalized : 
saturate
 }
 
-static void
+void
 float_to_half4_c (const float f[4],
                   guint16     h[4])
 {
@@ -64,7 +64,7 @@ float_to_half4_c (const float f[4],
   h[3] = float_to_half (f[3]);
 }
 
-static void
+void
 half_to_float4_c (const guint16 h[4],
                   float         f[4])
 {
diff --git a/gsk/ngl/fp16private.h b/gsk/ngl/fp16private.h
index a2c53d6c2d..574d7e4388 100644
--- a/gsk/ngl/fp16private.h
+++ b/gsk/ngl/fp16private.h
@@ -41,6 +41,12 @@ void float_to_half4_f16c (const float f[4],
 void half_to_float4_f16c (const guint16 h[4],
                           float         f[4]);
 
+void float_to_half4_c (const float f[4],
+                       guint16     h[4]);
+
+void half_to_float4_c (const guint16 h[4],
+                       float         f[4]);
+
 G_END_DECLS
 
 #endif