From: Dave Airlie <airlied@redhat.com>
Date: Thu, 23 Jul 2015 00:23:36 +0000 (+1000)
Subject: mesa: add function to check if shader subroutines are enabled.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d8a250ce5edc3da092ede6d62d433fbb37aa6cf6;p=mesa.git

mesa: add function to check if shader subroutines are enabled.

This checks if core profile and shader subroutine extension
is enabled.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h
index 7d256b18d47..0f7529ad975 100644
--- a/src/mesa/main/context.h
+++ b/src/mesa/main/context.h
@@ -343,6 +343,15 @@ _mesa_has_compute_shaders(const struct gl_context *ctx)
       (ctx->API == API_OPENGLES2 && ctx->Version >= 31);
 }
 
+/**
+ * Checks if the context supports shader subroutines.
+ */
+static inline bool
+_mesa_has_shader_subroutine(const struct gl_context *ctx)
+{
+   return ctx->API == API_OPENGL_CORE &&
+      (ctx->Version >= 40 || ctx->Extensions.ARB_shader_subroutine);
+}
 
 /**
  * Checks if the context supports tessellation.