glsl/types: disallow implicit conversions before GLSL 1.20

Implicit conversions were added in the GLSL 1.20 spec version.

v2: Join the checks for GLSL 1.10 and ESSL (Timothy).

Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>

diff --git a/src/compiler/glsl_types.cpp b/src/compiler/glsl_types.cpp
index 8a06695..641644d 100644 (file)
--- a/src/compiler/glsl_types.cpp
+++ b/src/compiler/glsl_types.cpp
@@ -1384,11 +1384,11 @@ glsl_type::can_implicitly_convert_to(const glsl_type *desired,
    if (this == desired)
       return true;
 
-   /* ESSL does not allow implicit conversions. If there is no state, we're
-    * doing intra-stage function linking where these checks have already been
-    * done.
+   /* GLSL 1.10 and ESSL do not allow implicit conversions. If there is no
+    * state, we're doing intra-stage function linking where these checks have
+    * already been done.
     */
-   if (state && state->es_shader)
+   if (state && (state->es_shader || !state->is_version(120, 0)))
       return false;
 
    /* There is no conversion among matrix types. */