Cuts the number of i965 color calculator viewport uploads by 100x
(11017983 -> 113385) in 'x11perf -gc' with Glamor in Xephyr.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/main/viewport.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/mesa/main/viewport.c b/src/mesa/main/viewport.c
index 6545bf6..222ae30 100644
--- a/src/mesa/main/viewport.c
+++ b/src/mesa/main/viewport.c
@@ -58,6 +58,12 @@ set_viewport_no_notify(struct gl_context *ctx, unsigned idx,
ctx->Const.ViewportBounds.Min, ctx->Const.ViewportBounds.Max);
}
+ if (ctx->ViewportArray[idx].X == x &&
+ ctx->ViewportArray[idx].Width == width &&
+ ctx->ViewportArray[idx].Y == y &&
+ ctx->ViewportArray[idx].Height == height)
+ return;
+
ctx->ViewportArray[idx].X = x;
ctx->ViewportArray[idx].Width = width;
ctx->ViewportArray[idx].Y = y;
--
2.1.0
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