gl-renderer: move shader list destroy to gl-shaders.c

This paves way for making struct gl_shader opaque outside of
gl-shaders.c.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>

libweston/renderer-gl/gl-renderer-internal.h

@@ -201,6 +201,9 @@ gl_renderer_setup_egl_extensions(struct weston_compositor *ec);
 void
 gl_shader_destroy(struct gl_renderer *gr, struct gl_shader *shader);
 
+void
+gl_renderer_shader_list_destroy(struct gl_renderer *gr);
+
 struct gl_shader *
 gl_renderer_create_fallback_shader(struct gl_renderer *gr);
 

libweston/renderer-gl/gl-renderer.c

@@ -3430,16 +3430,13 @@ gl_renderer_destroy(struct weston_compositor *ec)
 	struct gl_renderer *gr = get_renderer(ec);
 	struct dmabuf_image *image, *next;
 	struct dmabuf_format *format, *next_format;
-	struct gl_shader *shader, *next_shader;
 
 	wl_signal_emit(&gr->destroy_signal, gr);
 
 	if (gr->has_bind_display)
 		gr->unbind_display(gr->egl_display, ec->wl_display);
 
-	wl_list_for_each_safe(shader, next_shader, &gr->shader_list, link)
-		gl_shader_destroy(gr, shader);
-
+	gl_renderer_shader_list_destroy(gr);
 	if (gr->fallback_shader)
 		gl_shader_destroy(gr, gr->fallback_shader);
 

libweston/renderer-gl/gl-shaders.c

@@ -268,6 +268,15 @@ gl_shader_destroy(struct gl_renderer *gr, struct gl_shader *shader)
 	free(shader);
 }
 
+void
+gl_renderer_shader_list_destroy(struct gl_renderer *gr)
+{
+	struct gl_shader *shader, *next_shader;
+
+	wl_list_for_each_safe(shader, next_shader, &gr->shader_list, link)
+		gl_shader_destroy(gr, shader);
+}
+
 static int
 gl_shader_requirements_cmp(const struct gl_shader_requirements *a,
 			   const struct gl_shader_requirements *b)