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mesa: move no-change glDepthFunc check earlier

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If the incoming func matches the current state it must be a legal
value so we can do this before the switch statement.

Signed-off-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Brian Paul 2015-05-15 12:12:04 -06:00
parent 4dd72fe70d
commit 56b2b3d385
1 changed files with 3 additions and 3 deletions
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6
src/mesa/main/depth.c
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@ -65,6 +65,9 @@ _mesa_DepthFunc( GLenum func )
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));
if (ctx->Depth.Func == func)
return;
switch (func) {
case GL_LESS: /* (default) pass if incoming z < stored z */
case GL_GEQUAL:
@ -80,9 +83,6 @@ _mesa_DepthFunc( GLenum func )
return;
}
if (ctx->Depth.Func == func)
return;
FLUSH_VERTICES(ctx, _NEW_DEPTH);
ctx->Depth.Func = func;