mesa: avoid redundant state setting in glClientActiveTexture

Plus add code for verbose/debugging.
2009-10-27 13:51:51 -06:00
parent 33531614de
commit 72cb441c2f
1 changed files with 7 additions and 0 deletions
@@ -318,11 +318,18 @@ _mesa_ClientActiveTextureARB(GLenum texture)
   GLuint texUnit = texture - GL_TEXTURE0;
   ASSERT_OUTSIDE_BEGIN_END(ctx);

+   if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glClientActiveTexture %s\n",
+                  _mesa_lookup_enum_by_nr(texture));
+
   if (texUnit >= ctx->Const.MaxTextureCoordUnits) {
      _mesa_error(ctx, GL_INVALID_ENUM, "glClientActiveTexture(texture)");
      return;
   }

+   if (ctx->Array.ActiveTexture == texUnit)
+      return;
+
   FLUSH_VERTICES(ctx, _NEW_ARRAY);
   ctx->Array.ActiveTexture = texUnit;
 }