[gtk/wip/chergert/glproto] tweak order we check things

[Christian Hergert <chergert src gnome org>]

commit 747d66e29cae1f24609c1bef342f59e35cd8c191
Author: Christian Hergert <chergert redhat com>
Date:   Wed Feb 3 21:36:34 2021 -0800

    tweak order we check things
    
    also avoid the second matrix compare
    
    we are mostly dealing with things that will memcmp equal, so just use the fast
    version here.

 gsk/next/gskgluniformstate.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)
---
diff --git a/gsk/next/gskgluniformstate.c b/gsk/next/gskgluniformstate.c
index 1682ebdabe..6a5951cc88 100644
--- a/gsk/next/gskgluniformstate.c
+++ b/gsk/next/gskgluniformstate.c
@@ -236,7 +236,7 @@ get_uniform (GskGLUniformState  *state,
   g_assert (location < GL_MAX_UNIFORM_LOCATIONS || location == (guint)-1);
 
   /* Handle unused uniforms gracefully */
-  if (location == (guint)-1)
+  if G_UNLIKELY (location == (guint)-1)
     return NULL;
 
   /* Fast path for common case (state already initialized) */
@@ -247,9 +247,6 @@ get_uniform (GskGLUniformState  *state,
     {
       info = &g_array_index (program_info->uniform_info, GskGLUniformInfo, location);
 
-      if (info->format == 0)
-        goto setup_info;
-
       if G_LIKELY (format == info->format)
         {
           if G_LIKELY (array_count <= info->array_count)
@@ -268,6 +265,10 @@ get_uniform (GskGLUniformState  *state,
            */
           goto setup_info;
         }
+      else if (info->format == 0)
+        {
+          goto setup_info;
+        }
       else
         {
           g_critical ("Attempt to access uniform with different type of value "
@@ -606,12 +607,8 @@ gsk_gl_uniform_state_set_matrix (GskGLUniformState       *state,
 
   if ((u = get_uniform (state, program, GSK_GL_UNIFORM_FORMAT_MATRIX, 1, location, &info)))
     {
-      if (!info->initial)
-        {
-          if (graphene_matrix_equal_fast (u, matrix) ||
-              graphene_matrix_equal (u, matrix))
-            return;
-        }
+      if (!info->initial && graphene_matrix_equal_fast (u, matrix))
+        return;
 
       REPLACE_UNIFORM (info, u, GSK_GL_UNIFORM_FORMAT_MATRIX, 1);
       memcpy (u, matrix, sizeof *matrix);